Corrections for OWP Products

Table of Contents

COLL1 - Operation and Maintenance of Wastewater Collection Systems, Vol 1, Ed 8, Manual
Page Number: 9

Section 1.2.1, “Overview of O&M Challenges,” paragraph 2, bullet 1, line 1

For: ewers

Read: sewers

Page Number: 17

Question 1

For:

1. What is another name for a wastewater collection system?
a. Septage system
b. Septic system
c. Sewerage system
d. Storm sewer

Read:

1. What is another name for a wastewater collection system?
a. Sewerage system
b. Septic system
c. Distribution system
d. Storm sewer

Page Number: 26

Example 1, Residential flow equation (bottom of page)

For: gpd

Read: 85 gpd

Page Number: 226

Sidebar information note, line 2

Transpose the quotation mark and the period.

Page Number: 227

Sidebar information note, line 3

Transpose the right quotation mark and the comma.

Page Number: 311

Figure 5.2 caption, credit line

For: SRECO_FLEXIBLE

Read: SRECO Flexible, Inc

Page Number: 313

Figure 5.4 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 319

Section 5.2.1.4, “Cleaning Operation,” paragraph 2, line 2

For: pump

Read: cleaning nozzle

Page Number: 336

Figure 5.11 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 337

Figure 5.11 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 350

Figure 5.14 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 355

Figure 5.15 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 356

Figure 5.16 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 356

Figure 5.17 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 357

Figure 5.18 caption, credit line

For: SRECO_FLEXIBLE, Inc

Read: SRECO Flexible, Inc

Page Number: 421

Section 6.1.5.1, “Working with AC Pipe,” paragraph 2, line 3

For: sulphates

Read: sulfates

Page Number: 462

Section 6.5.8, “Bedding, Backfilling, and Compaction,” paragraph 3, line 1

For: scrubs

Read: shrubs

Page Number: 480

Example 3, last paragraph

For: The test time, 160 seconds, is greater than 61 seconds (the smaller of tQ and tq), so this section of pipe passes.

Read: The test time, 160 seconds, is less than 282 seconds (the smaller of tQ and tq), so this section of pipe fails.

Page Number: 481

Paragraph 1 (in the pink box)

For: The test time of 225 is greater than the smaller of tQ and tq, therefore, this section of pipe passes.

Read: The test time of 225 is less than the smaller of tQ and tq, therefore, this section of pipe fails.

Page Number: 497

Question 47, responses a through d

For:

a. 300 GPD/in/mi
b. 325 GPD/in/mi
c. 375 GPD/in/mi
d. 400 GPD/in/mi

Read:

a. 350 GPD/in/mi
b. 450 GPD/in/mi
c. 570 GPD/in/mi
d. 380 GPD/in/mi

Page Number: 499

Key Terms

For: total dynamic head (TDM)

Read: total dynamic head (TDH)

Page Number: 552

Section A.7.8 title

For: Pump Speed-Performance Relationships

Read: Pump Speed–Performance Relationships

Page Number: 561

Section A.8.3.1, “Graphs and Charts,” paragraph 2, line 11

For: yaxis

Read: y-axis

Page Number: 587

Answer Key, Chapter 1, “Introduction to Wastewater Collection,” answer 16

For: a

Read: b

COLL2 - Operation and Maintenance of Wastewater Collection Systems, Vol 2, Ed 8, Manual
Page Number: 143

First and second items under the first instance of “where,” (near top of page)

For:

Pout = power factor in hp
Pin = power factor in kW

Read:

Pout = power output in hp
Pin = power input in kW

Page Number: 149

First item under the second instance of “where,” (bottom of page)

For: iunbalance[%] = current imbalance in percent

Read: iunbalance[%] = current unbalance in percent

IWT1 - Industrial Waste Treatment, Vol 1, Ed 4, Manual
Page Number: 36

Paragraph 1, line 2

For: Section 1.51

Read: Section 1.5.1

Page Number: 59

Section 1.7, “Regulatory Requirements,” paragraph 1, line 3

For: statues

Read: statutes

Page Number: 295

Question 17, response b

For: 23.9 gal/min

Read: 19.4 gal/min

Page Number: 496

Figure 5.59, top of graphic

For: MACRO RANGE

Read: MICRO RANGE

For: MICRO PARTICLE RANGE

Read: MACRO PARTICLE RANGE

Page Number: 506

Figure 5.73, bottom-right label

For: memebrane

Read: membrane

Page Number: 829

Sidebar definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

Page Number: 1053

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

IWT2 - Industrial Waste Treatment, Vol 2, Ed 4, Manual
Page Number: 546

Paragraph 3, line 5

For: hese

Read: these

Page Number: 723

Example 25, number 2 equation, answer

For: 607 lb/ft · h

Read: 183 lb/ft · h

Page Number: 905

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

OWTP1 - Operation of Wastewater Treatment Plants, Vol 1, Ed 8, Manual
Page Number: 24

“ACTIVATED SLUDGE SYSTEMS” section, paragraph 1, lines 5 and 6

For: Processes

Read: Systems

Page Number: 28

Line 2

For: Processes

Read: Systems

Page Number: 85

Section 2.5.8, “Safety Valves,” paragraph 1, lines 4 and 5

For: “Chlorine Container”

Read:  “Chlorine Containers”

Page Number: 167

Example 7, Unknown column

For: velocity, ft/s

Read: v = velocity, ft/s

Page Number: 174

Section 3.5.3, “Vortex-Type Grit Chambers,” line 8

For: Figure 1.9

Read: Figure 1.8

Page Number: 192

Sidebar information note, line 5

For: Processes

Read: Systems

Page Number: 262

Example 1, Unknown column

For: food to microorganism ratio, lb BOD/lb MLVSS • d

Read: food to microorganism ratio, lb BOD/lb VSS • d

Page Number: 333

Second sidebar information note, line 4

For: Examinations

Read: Examination

Page Number: 335

Bullet 3 (under paragraph 5), line 2

For: Separations

Read: Separation

Page Number: 336

Sidebar information note, line 4

For: Record-keeping

Read: Recordkeeping

Page Number: 337

Table 5.5, “VSS” table head

The VSS table head and its accompanying rule, which currently sit over the “Aer, %” column, should should extend to include the “Total Vol, lb” column.

Page Number: 337

Table 5.5, footnote a

For: Middle of three aerations tanks.

Read: Middle of three aeration tanks. Aer, mg/L is the MLSS and Aer, % is the volatile fraction of the MLSS.

Page Number: 337

Table 5.5, footnote b

For: Multiply lb × 0.454 to obtain kg.

Read: Total mass of volatile solids in all three aeration tanks, lb. Multiply lb × 0.454 to obtain kg.

Page Number: 351

Section 5.5.3.4, “Stiff White Foam,” paragraph 1, line 1

For: young sludge or an underloaded system

Read: young sludge or an overloaded system

Page Number: 357

Line 4

For: Systems

Read: System

Page Number: 401

Paragraph 2, line 1

For: Figure 5.67

Read: Figure 5.71

Page Number: 401

Paragraph 4, line 1

For: Figure 5.67

Read: Figure 5.71

Page Number: 407

Section 5.7, “Startup and Shutdown,” paragraph 2, line 5

For: “Process Startup After Initial Construction,”

Read: “Startup After Initial Construction,”

Page Number: 407

Section 5.7, “Startup and Shutdown,” paragraph 2, lines 9 and 10

For: “Process Long-Term Shutdown and Startup Procedures”

Read: “Long-Term Shutdown and Startup Procedures”

Page Number: 407

Section 5.7, “Startup and Shutdown,” paragraph 2, lines 10 and 11

For: “Process Short-Term Shutdown and Startup Procedures,”

Read: “Short-Term Shutdown and Startup Procedures,”

Page Number: 413

Paragraph 3, line 5

For: Figure 5.68

Read: Figure 5.72

 

Page Number: 413

Line 3 from the bottom

For: Figure 5.69

Read: Figure 5.72

Page Number: 421

“SECONDARY CLARIFIERS” section, bullet 1

For: See Section 5.7.4.2, “Flow Control Gates, Valves, and Weirs,” for checking out the water control structures.

Read: See “Flow Control Gates, Valves, and Weirs” in this section.

Page Number: 431

Paragraph 2, line 1

For: “Equipment Startup and Shutdown,”

Read: “Startup and Shutdown,”

Page Number: 431

Section 5.7.7.1, “ASP Influent and Effluent Flow Control Equipment,” Paragraph 2, line 1

For: “Equipment Startup and Shutdown,”

Read: “Startup and Shutdown,”

Page Number: 432

Section 5.7.7.2, “Surface Aerators and Mixers,” Paragraph 1, line 4

For: “Equipment Startup and Shutdown,”

Read: “Startup and Shutdown,”

Page Number: 548

Sidebar information note, line 4

For: Processes

Read: Systems

Page Number: 549

Table 6.11 caption

For: FFBR

Read: FBBR

 

Page Number: 549

Table 6.11 column heads (2 instances)

For: FFBR

Read: FBBR

Page Number: 549

Table 6.11, column 2 body (2 instances)

For: FFBR

Read: FBBR

Page Number: 554

Sidebar information note, line 8

For: Processes

Read: Systems

Page Number: 555

Line 11 from the bottom

For: Processes

Read: Systems

Page Number: 559

Line 7

For: Processes

Read: Systems

Page Number: 566

Lines 1 and 2 from the bottom

For: “Activated Sludge (Secondary Treatment)”

Read: “Activated Sludge Systems (Secondary Treatment)”

Page Number: 567

Section 6.4.8, “Startup and Shutdown Procedures,” paragraph 2, line 1

For: MRRB

Read: MBBR

Page Number: 584

Section 7.3.2.1, “Free Chlorine,” pink box, line 1

For: hypochloric acid

Read: hydrochloric acid

Page Number: 663

Figure 7.29, “Radiation spectrum and UV lamp output”

For: UV-A

Read: UV-C

For: UV-C

Read: UV-A

Page Number: 730

Section 8.7.13, “Batch and Controlled Discharge Operations,” paragraph 3, line 6

For: ef-fluent

Read: effluent

Page Number: 731

“Check Your Understanding,” question 4

Delete the second question mark.

Page Number: 758

Question 22, response b

For: breading

Read: breeding

Page Number: 820

Equation in pink box

For: 200 mg/L

Read: 220 mg/L

 

Page Number: 845

“TYPICAL VALUES” section, right column head

Insert a space between the comma and μS.

Page Number: 848

Table 9.10, right column

For: Bromcresol

Read: Bromocresol

For: bromcresol

Read: bromocresol

Page Number: 965

“Rounding” sidebar, paragraph 1, line 14

For: tenths

Read: tens

Page Number: 994

Line 1

For: gages

Read: gauges

OWTP2 - Operation of Wastewater Treatment Plants, Vol 2, Ed 8, Manual
Page Number: 25

“Check Your Understanding,” question 4

For: phosphorous

Read: phosphorus

Page Number: 45

Question 16

For: phosphorous

Read: phosphorus

Page Number: 47

“Learning Objectives,” item 2

For: phosphorous

Read: phosphorus

Page Number: 49

Paragraph 1, line 1

For: Phosphorous

Read: Phosphorus

Page Number: 49

Paragraph 4, line 2

For: phosphorous

Read: phosphorus

Page Number: 49

Example 1, line 3

For: phosphorous

Read: phosphorus

Page Number: 50

“Check Your Understanding,” question 1

For: phosphorous

Read: phosphorus

Page Number: 74

Figure 2.17, third orange row

For: In two-stage activated sludge system, SVI of nitrification sludge is very high (greater than 250)

Read: In 2-stage activated sludge systems, SVI of nitrification sludge is very high (greater than 250)

Page Number: 77

Figure 2.19 caption

For: Nitrification-denitrification

Read: Nitrification–denitrification

Page Number: 78

Figure 2.20 caption

For: Nitrification-denitrification

Read: Nitrification–denitrification

Page Number: 89

Section 2.3, “Phosphorus Removal,” paragraph 1, lines 8 and 9; paragraph 2, lines 1 and 2

For: Phosphorous or phosphorous

Read: Phosphorus or phosphorus

Page Number: 91

Section 2.3.1, “Biological Phosphorus Removal,” multiple instances

For: phosphorous

Read: phosphorus

Page Number: 91

Figure 2.28 caption

For: Phosphorous

Read: Phosphorus

Page Number: 99

“Check Your Understanding,” questions 1, 2 (two instances), 3, and 4

For: phosphorous

Read: phosphorus

Page Number: 106

“Check Your Understanding,” questions 1, 3, and 4

For: phosphorous

Read: phosphorus

Page Number: 107

Section 2.3.3, title and line 1

For: Phosphorous

Read: Phosphorus

 

Page Number: 107

Lines 2 and 3 from the bottom

For: phosphorous

Read: phosphorus

Page Number: 108

Multiple instances on the page

For: phosphorous

Read: phosphorus

Page Number: 114

Figure 2.37 courtesy line

For: Reprinted with permission of Patrick Wiley, Sanford Sewerage District, Sanford, Maine

Read: Reprinted with permission of Patrick Wiley and the Sanford Sewerage District, Sanford, Maine

Page Number: 115

Section 2.3.3.6, “Reviewing Plans and Specifications,” paragraph 1, line 9

For: phosphorous

Read: phosphorus

Page Number: 116

“Check Your Understanding,” questions 1, 2, 3, and 4

For: phosphorous

Read: phosphorus

Page Number: 122

Paragraph 5, line 2

For: phosphorous

Read: phosphorus

Page Number: 126

“Check Your Understanding,” questions 2 and 4

For: phosphorous

Read: phosphorus

Page Number: 134

Section 2.4.4, “Optimizing Nitrogen and Phosphorus Removal,” paragraph 2, line 1

For: phosphorous

Read: phosphorus

Page Number: 138

Paragraph 1, lines 3, 10, and 11

For: phosphorous

Read: phosphorus

Page Number: 147

“Check Your Understanding,” question 4

For: phosphorous

Read: phosphorus

Page Number: 149

Question 3, response d

For: phosphorous

Read: phosphorus

Page Number: 150

Question 19, text and response c

For: Phosphorous or phosphorous

Read: Phosphorus or phosphorus

Page Number: 151

Question 31

For: phosphorous

Read: phosphorus

Page Number: 161

Line 18 under “Metal Salts”

For: principle

Read: principal

Page Number: 164

Figure 3.4 caption

For: Dry polymer in 1,650-pound bag and liquid polymer in 55-pound barrels and 275-pound totes

Read: Dry polymer in 1,650-pound bag and liquid polymer in 55-gallon barrels and 275-gallon totes

Page Number: 165

Paragraph 2, line 3

For: principle

Read: principal

Page Number: 179

Line 4 under “Liquid Injection Systems”

For: principle

Read: principal

Page Number: 182

Paragraph 1, line 10

For: principle

Read: principal

Page Number: 192

Section 3.2.4.2, “Performance Metrics,” line 1

For: principle

Read: principal

Page Number: 197

Example 7—Metric, number 1 equation

For: 10[ft]

Read: 10[m]

Page Number: 204

Section 3.3, “Conditioning,” paragraph 2, line 8

For: so the this section will focus on

Read: so this section will focus on

Page Number: 238

Example 10, line 2

For: to to

Read: to

Page Number: 270

Figure 3.59, top of graphic

For: MOLECUAR RANGE

Read: MOLECULAR RANGE

For: MACRO RANGE

Read: MICRO RANGE

For: MICRO PARTICLE RANGE

Read: MACRO PARTICLE RANGE

Page Number: 270

Figure 3.59 caption

For: contaminant

Read: contaminants

Page Number: 284

Example 13, line 3

For: feet

Read: foot

Page Number: 284

Example 13, Known column

For: Asurface = membrane surface area = 1,200 ft2

Read: A = membrane surface area = 1,200 ft2

For: Qpermeate = permeate flow rate = 25 gal/min

Read: Qp = permeate flow rate = 25 gal/min

Page Number: 284

Example 13 equation, line 1

For: Q

Read: Qp

Page Number: 286

Example 15, Known column (corrected version)

Cf = feed concentration = 106 microorganisms/L
Cp = permeate concentration = 10 microorganisms/L

Page Number: 298

Example 19, Known column

For: F = temperature correction from standard 77°F = 0.742.

Read: F = temperature correction from standard 77°F = 0.762.

Page Number: 299

Example 20, line 1

For: Example 13

Read: Example 19

Page Number: 299

Example 20 equation

For: membrane area [ft2]

Read: A [ft2]

Page Number: 300

Bullet 2 from the top, lines 1 and 2

For: (including fats, oils, grease surfactants and fatty acids)

Read: (including fats, oils, grease, surface active agents, and fatty acids)

Page Number: 304

Paragraph 4, line 7

For: principle

Read: principal

Page Number: 309

Question 48, line 1

For: producitivity

Read: productivity

Page Number: 309

Question 48, response c

For: 114 gal/ft2/d

Read: 118 gal/ft2/d

Page Number: 318

Example 1, number 1, line 1

For: pound

Read: pounds

Page Number: 319

Example 1, number 3, first equation, line 2

For: 2,753

Read: 3,753

Page Number: 319

Example 1, number 3, first equation, line 2

For: 2,753

Read: 3,753

Page Number: 320

Example 2, Known column

For: BODin

Read: Cin

For: BODout

Read: Cout

Page Number: 321

Example 3, Unknown column

For: gal/d

Read: gal

Page Number: 322

Example 4, Unknown column

For: gal/d

Read: gal

Page Number: 322

Example 4, paragraph before equation, line 1

For: voulme

Read: volume

Page Number: 325

Example 5, end of paragraph 1

Insert: Assume a specific gravity of 1.0 for the sludge.

Page Number: 325

Example 5, end of Known column

Insert: SGsl = specific gravity of the sludge = 1.0

Page Number: 326

Example 5, number 1 equation, line 1

For: Ps

Read: Ps1

Page Number: 331

Example 7, end of paragraph 1

Insert: Assume a specific gravity of 1.0 for the sludge.

Page Number: 331

Example 7, Known column

For: Qs1

Read: Qsl

Page Number: 331

Example 7, end of Known column

Insert: SGsl = specific gravity of the sludge = 1.0

Page Number: 331

Example 7, number 1

For: Calculate the daily volume of the sludge (Qsl).

Read: Convert the daily volume of the sludge (Qsl) from gallons per minute to gallons per day.

Page Number: 340

Example 12, Unknown column

For: Sludge withdrawal rate, lb/min

Read: MRs, sl = sludge withdrawal rate, lb/min

Page Number: 341

Example 12, number 2

For: Calculate the solids leaving the thickener Ms, sl in pounds per minute.

Read: Calculate the solids leaving the thickener (Ms, sl) in pounds per minute.

Page Number: 350

Example 18 equation

For: Qin

Read: Qsolids

Page Number: 361

Example 21, number 2 equation

For: Qinfluent

Read: HLR

Page Number: 361

Example 22, number 2 equation

For: Qinfluent

Read: HLR

Page Number: 362

Example 23, line 1

For: basket

Read: basket centrifuge

Page Number: 367

Line 1

For: eficiency

Read: efficiency

Page Number: 367

Section 4.3.3.6, “Troubleshooting,” line 1

For: Since

Read: Because

Page Number: 374

Example 25, number 2 equation, answer

For: 607 lb/ft · h

Read: 183 lb/ft · h

Page Number: 378

Figure 4.17 caption

For: Enclosed RDT with one of the access panels removed (left) and installed (right)

Read: Enclosed RDT with one of the access panels installed (left) and removed (right)

Page Number: 390

Figure 4.23 caption

For: Most widely used cylindrical shaped anaerobic digester

Read: Cylindrical anaerobic digesters

Page Number: 390

Figure 4.24 caption

For: digester

Read: digesters

Page Number: 431

“STRUVITE CONTROL” section, paragraph 1, line 9

For: vivianite (Fe3(PO4)2

Read: vivianite (Fe3(PO4)2)

 

Page Number: 436

Sidebar information note, lines 2 and 3

For: Section 4.1. 4.3

Read: Section 4.1.4.3

Page Number: 436

Example 29, Unknown column, first item

For: MTS = mass of total solids. lb

Read: MTS = mass of total solids, lb

 

Page Number: 443

Example 34, paragraph 1, line 4

For: ouput

Read: output

Page Number: 446

Example 37, number 2, second equation

For: MTS, out [lb]

Read: MTS, in [lb]

Page Number: 457

Section 4.4.1.14, “Example of Actual Operation,” paragraph 2, line 3

For: stystem

Read: system

Page Number: 462

First pink box

For: biomass + oxygen → water + ammonium carbonate

Read: biomass + oxygen → carbon dioxide + water + ammonium carbonate

 

Page Number: 465

Table 4.15 source information (missing in earlier printings)

Sources: J. C. Dyer, A. S. Vernick, and H. D. Feiler, Handbook of Industrial Wastes Pretreatment/Water Management Series, Garland STPM Press, New York, NY, 1981.
Wastewater Treatment Plant Design/Manual of Practice No. 8. Water Pollution Control Federation, Lancaster Press, Inc., Lancaster, PA, 1982.

Page Number: 466

“DIGESTION TEMPERATURE” section, paragraph 2, line 7

For: the temperature

Read: the sludge temperature

Page Number: 466

“DIGESTION TEMPERATURE” section, paragraph 2, lines 8–10

For: Degree-days is the multiplication of temperature 32°F (0°C) of sludge inside the digester and SRT (days).

Read: To determine degree-days, multiply the sludge temperature (°C) and the SRT (days).

Page Number: 480

Example 45, line 3

For: ton

Read: ton of sludge solids

Page Number: 481

Example 45, number 2 equation, line 1

For: +

Read: ×

Page Number: 487

Example 46, end of Known column

Insert: Pw,blend = 50% moisture

Page Number: 487

Example 46, number 1, line 1

For: dewatered sludge

Read: dewatered sludge (Pw,sludge)

Page Number: 487

Example 46, Unknown column

For: MRC

Read: MRc

Page Number: 488

Example 47, end of Known column

Insert: Pw,blend = 50% moisture

Page Number: 488

Example 47, number 1, line 1

For: dewatered sludge

Read: dewatered sludge (Pw,sludge)

Page Number: 496

Example 48, Known column, second item

For: PS

Read: Ps, in

Page Number: 504

Example 49, sentence before equation

For: Determine the hydraulic loading in gallons per minute per meter.

Read: Determine the hydraulic loading in gallons per meter per minute.

Page Number: 509

Section 4.5.1.4, “Rotary Press,” paragraph 4, line 7

For: introuduces

Read: introduces

Page Number: 591

Section 5.1.4.5, “Disinfection Systems,” paragraph 3, line 1

For: principle

Read: principal

Page Number: 636

Section 5.3, “Motors,” paragraph 4, line 1

For: principle

Read: principal

Page Number: 687

Figure 5.79, first orange row

For: idicated

Read: indicated

Page Number: 701

Second sidebar information note, line 3

For: Section 5.3

Read: Section A.5.3

Page Number: 713

Figure 5.88, credit line

For: Reprinted with permission of Girard Industries, www.girardind.com

Read: Reprinted with permission of Girard Industries, girardindustries.com

Page Number: 849

Answer Key (corrected version), Chapter 1, “Introduction to Wastewater Treatment,” answer 12

For: collection treatment, discharge/reuse

Read: collection, treatment, discharge/reuse

Page Number: 849

Answer Key (corrected version), Chapter 1, “Introduction to Wastewater Treatment,” answer 19

For: hydrogen sulfide (H2S), organic gases

Read: hydrogen sulfide (H2S), organic gases

Page Number: 849

Answer Key (corrected version), Chapter 2, “Nutrient Removal (Tertiary Treatment),” answer 8

For: alkalinity, DO, levels, oxic sludge retentation time

Read: alkalinity, DO levels, oxic sludge retention time

Page Number: 849

Answer Key (corrected version), Chapter 2, “Nutrient Removal (Tertiary Treatment),” answer 16

For: ammonia, gaseous ammonia

Read: ammonium, gaseous ammonia

Page Number: 849

Answer Key (corrected version), Chapter 2, “Nutrient Removal (Tertiary Treatment),” answer 19

For: alkalinity, DO levels, oxic sludge retention time

Read: c

Page Number: 849

Answer Key (corrected version), Chapter 2, “Nutrient Removal (Tertiary Treatment),” answer 20

For: b

Read: a

Page Number: 850

Answer Key (corrected version), Chapter 4, “Residual Solids Management”

1. g
2. c
3. i
4. d
5. b
6. e
7. f
8. a
9. h
10. j
11. c
12. c
13. b
14. 40 CFR Part 503, sewage sludge biosolids
15. c
16. a
17. c
18. d
19. amount of solids, sludge blanket, thickener
20. c
21. flow, continuous, constant
22. a
23. solid bowl, decrease, drier
24. b
25. a
26. d
27. anaerobic, organic, hydrolysis, fermentation, methanogenesis
28. c
29. d
30. b
31. c
32. a
33. d
34. a
35. c
36. conversion, carbon dioxide, microorganisms
37. d
38. d
39. b
40. c
41. prevent anaerobic conditions, excessive heat loss occurs
42. physical, thermal, electrical
43. b
44. d
45. c
46. c
47. incineration, combustion, ash
48. d
49. a
50. the DLD landfill contaminated runoff, intermittent, continuously flowing surface streams

Page Number: 864

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

Page Number: 884

For: Chemical phosphorous removal

Read: Chemical phosphorus removal

Page Number: 889

Second entry under “Phosphorus removal”

For: phosphorous

Read: phosphorus

OWTP3 - Operation of Wastewater Treatment Plants, Vol 3, Ed 1, Manual
Page Number: 321

Sidebar definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

Page Number: 325

Figure 4.92 caption, credit line

For: Reprinted with permission of YSI, a Xylem brand

Read: Left: Reprinted with permission of Hach Company; right: Reprinted with permission of YSI, a Xylem brand

Page Number: 332

Paragraph 2, line 7

For: Section 4.8

Read: Section 4.2

Page Number: 391

Sidebar information note, lines 3 and 4

For: Section A.8, “Analysis and Presentation of Data,”

Read: Section A.9, “Data Analysis and Presentation,”

Page Number: 395

Question 12, response d

For: 1,052.4 lb/d

Read: 682.9 lb/d

Page Number: 651

Answer Key (corrected version), Chapter 4, “Instrumentation and Control”

1. treatment process, targeted effluent water quality standards
2. c
3. b
4. d
5. b
6. Ringing, process variable, set point value
7. often poorly ventilated, accumulate a dangerous atmosphere containing toxic and explosive gases, oxygen
enriched or deficient
8. a
9. a
10. b
11. c
12. d

Page Number: 652

Answer Key (corrected version), Chapter 4, “Instrumentation and Control” (continued)

13. d
14. b
15. d
16. c
17. Pressure switches, pressure threshold, exceeded
18. a
19. optics that capture the digital image, sensor that detects IR energy, microprocessor and memory module that
apply colors to the image that correspond to the apparent thermal gradient
20. b
21. b
22. d
23. b
24. c
25. c
26. c
27. biological activity, chemical reactions or releases, emissions from internal combustion engines
28. d
29. d
30. calibration, specially formulated gas mixture, target gases of known concentration
31. c
32. d
33. a
34. a
35. b
36. oxidizing, reducing strength, gain or lose electrons
37. d
38. a
39. c
40. d

Page Number: 666

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

PFI - Pretreatment Facility Inspection, Ed 4, Manual
Page Number: 94

Second equation under “CONTAINER 1”

For: 6.24

Read: 62.4

Page Number: 159

Question 19, response c

For: III

Read: B

Page Number: 260

Example 8—Metric, first equation after “Calculate the flow rate …,” line 2

For: 0.071.5

Read: 0.0751.5

Page Number: 283

Last item under “where,”

For: td = number of days the cooling tower is operation per year

Read: td = number of days the cooling tower is in operation per year

Page Number: 283

Last paragraph, line 2

For: temperature

Read: temperatures

Page Number: 292

Question 37, response b

For: 23.9 gal/min

Read: 19.4 gal/min

Page Number: 304

“Check Your Understanding,” question 4

For: operator

Read: inspector

Page Number: 310

“Check Your Understanding,” question 1

For: operator

Read: inspector

Page Number: 506

Question 38, responses a through d

For:

a. 8,000 gal/d
b. 12,000 gal/d
c. 24,000 gal/d
d. 10,000 gal/d

Read:

a. 423 min
b. 282 min
c. 141 min
d. 338 min

SWS - Small Water System Operation and Maintenance, Ed 6, Manual
Page Number: 14

Sidebar definition for “detention time,” equation

For: Time [d]

Read: Time [h]

Page Number: 19

Table 1.2, “Primary drinking water regulations,” “Inorganic Chemicals”

For: Arsenic 0.05 mg/L

Read: Arsenic 0.01 mg/L

Page Number: 134

Method 2, number 1 equation, line 1

For: 0.875

Read: 0.785

Page Number: 160

Section 2.12, “Math Assignment,” bullet 3

For:

• A.3, “Volume” (A.5.3.1 through A.5.3.6)

Read:

• A.5.3, “Volume” (A.5.3.1 through A.5.3.6)

Page Number: 187

Figure 3.7 caption, credit line

For: Muerer

Read: Meurer

Page Number: 275

Question 8, responses a through d

For:

a. 0.26 MGD
b. 0.28 MGD
c. 0.30 MGD
d. 0.32 MGD

Read:

a. 26 lb/d
b. 28 lb/d
c. 30 lb/d
d. 32 lb/d

Page Number: 510

“WHAT IS TESTED” section, table column head

For: Common Range, NTU

Read: Common Range, pH

Page Number: 552

Figure 6.30, bottom of figure, items to the right of “where”

For: xs

Read: xs

For: nj

Read: nj

For: zj

Read: zj

For: zs

Read: zs

Page Number: 554

Last paragraph, line 3

For: you can you can

Read: you can

Page Number: 554

Last paragraph, lines 5 through 7.

For:

For instance, if you dilute the sample in Example 4 above by 100 before running the three-dilution test, you can expect results like 4-3-3 or 4-4-2 or 5-1-1, all of which can be read directly from Table 6.4.

Read:

For instance, if you dilute the sample in Example 22 by 100 before running the three-dilution test, you would expect to get a 5-1-1 result, which can be read directly from Table 6.4.

Page Number: 579

Section 6.6, “Math Assignment,” bullets 2 and 3

For:

• A.6.10, “Laboratory Procedures” (English system)
• A.10.10, “Laboratory Procedures” (Metric system)

Read:

• A.9.6, “Laboratory Procedures” (English system)
• A.10.6, “Laboratory Procedures” (Metric system)

Page Number: 588

Section 7.2.1.2, “System Growth Rate,” line 5

For: forecast

Read: forecasted

Page Number: 662

Section A.5.7, “Velocity and Flow Rate,” equation in pink box after first paragraph

For: V

Read: v

Page Number: 662

Example 30 equation

For: V

Read: v

Page Number: 662

Example 31 equation

For: V

Read: v

Page Number: 667

Equations under the graphic

For: p0

Read: p0

For: p1

Read: p1

For: p2

Read: p2

For: p3

Read: p3

For: p4

Read: p4

Page Number: 668

Example 38, equation below paragraph 3

For: Pavg

Read: pavg

Page Number: 673

“Writing Numbers in the SI System” sidebar, paragraph 1, line 2

For: based on SI system

Read: based on the SI system

Page Number: 684

Section A.7.6, “Pump Characteristics,” paragraph 2, lines 5 and 6

For: If plotted on a graph, the curve appears as follows:

Read: If plotted on a graph, the curve appears as indicated in the Head/Capacity graph.

Page Number: 690

Section A.7.8 title

For: Pump Speed-Performance Relationships

Read: Pump Speed–Performance Relationships

Page Number: 699

Section A.8.3.1, “Graphs and Charts,” paragraph 2, line 11

For: yaxis

Read: y-axis

Page Number: 703

Paragraph above the second graph, lines 5 and 6

For: the dark line in the following figure

Read: the red line in the following graph

Page Number: 703

Paragraph above the second graph, line 7

For: gray line

Read: blue line

Page Number: 703

Graph 2

The vertical axis (y-axis) should be labeled “Mean Daily Flow (MGD)” and the horizontal axis (x-axis) should be labeled “Year.”

Page Number: 708

First pink box, number 7 equation

For: 100 mI

Read: 100mL

Page Number: 729

Example 11, number 2 equation

For: 300 gpm

Read: 3,000 gpm

Page Number: 745

Answer Key (corrected version), Chapter 4, “Disinfection”

1. a
2. f
3. g
4. i
5. c
6. d
7. e
8. h
9. j
10. b
11. disinfection, sterilization
12. disinfectants, compounds
13. a
14. b
15. carcinogenic compounds, ammonia, sulfide compounds, phenolic tastes and odors
16. d
17. weaken it, start leaking
18. d
19. c
20. dry, hydrochloric acid
21. a
22. 100°, 38°
23. ventilated air, chlorine
24. continuous, water consumers
25. a

Page Number: 746

Answer Key (corrected version), Chapter 4, “Disinfection” (continued)

26. c
27. technological difficulties, high energy costs
28. safety aspects, health effects
29. a
30. checking UV monitors, cleaning the UV lamps
31. d
32. b
33. b
34. a
35. d

Page Number: 746

Answer Key, Chapter 5, “Safety,” answer 10

For: c

Read: b

Page Number: 746

Answer Key, Chapter 7, “Introduction to Small System Management,” answer 22

For: d

Read: multiply, divide

Page Number: 746

Answer Key, Chapter 7, “Introduction to Small System Management,” answer 29

For: 398.00

Read: $398.00/mo

Page Number: 758

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

Page Number: 787

“OSH Act of 1970 (Occupational Safety and Health Act of 1970),” page listing

For: 500

Read: 439, 500

SWWS1 - Small Wastewater System Operation and Maintenance, Vol I, Ed 2, Manual
Page Number: 238

Table 5.6, Symptom 7, “Leakage at the Toe of the Mound,” “Explanation,” line 1

For: Figure 5.32

Read: Figure 5.31

TMW - Treatment of Metal Wastestreams, Ed 5, Manual
Page Number: 55

Figure 2.1, “Treatment of segregated metal finishing wastestreams”

For: From metal plating plating facility

Read: From metal plating facility

For: pH adjust tank

Read: pH adjustment tank

Page Number: 57

Table 2.3, “Conventional chemical treatment methods,” missing table note

aAdapted from Metal Finishing Plating Buyers Guide, TMSI Contractors

Page Number: 67

Line 8 (under the first pink box)

For: water solution

Read: water solutions

Page Number: 76

Example 13, line 1

For: 4 percent or 1 normal sodium hydroxide solution

Read: 4 percent (1 N) sodium hydroxide solution

Page Number: 76

Example 13, sentence before the equation

For: Convert 4 percent to milligrams per liter.

Read: Convert the 4 percent sodium hydroxide solution to milligrams per liter.

Page Number: 108

Example 21, line 1

For: 1.0

Read: 1

Page Number: 136

Example 1, paragraph 1, line 4

For: 2 N

Read: 2 N

Page Number: 136

Example 1, number 1

For: Determine normality

Read: Determine the normality

Page Number: 137

Example 3, number 1

For: Determine normality

Read: Determine the normality

Page Number: 139

Example 6, line 3

For: 1 N

Read: 1 N

Page Number: 153

Example 22, number 2 equation, line 3

For: 3.15

Read: 31.5

Page Number: 154

Equation in first pink box

For: 8.34 gal

Read: 8.34 lb

Page Number: 154

Equation in second pink box

For: VSludge (2 instances)

Read: Vsludge

For: SSludge (2 instances)

Read: Ssludge

UM - Utility Management, Ed 3, Manual
Page Number: 94

Example 2, Unknown column, after line 1

Insert: Enondebt = nondebt expense

Page Number: 95

Example 2, number 2 equation

For: OE[$]

Read: TOE[$]

Page Number: 95

Example 2, number 2 equation

For: $625,300

Read: $612,100

For: $1,353,700

Read: $1,366,900

Page Number: 95

Example 2, number 3 equation

For: $1,353,700

Read: $1,366,900

For: 1.72

Read: 1.7

Page Number: 106

Table 2.4, “List and Description of Factors Commonly Used to Evaluate Asset Condition,” “Structural Defects and Physical Condition,” line 1

For: a more likely to fail

Read: are more likely to fail

Page Number: 106

Table 2.4, “List and Description of Factors Commonly Used to Evaluate Asset Condition,” “Quality of Materials and Construction,” lines 3–5

For: For example, improperly sloped and bedded sewer lines will be impeded gravity flow and prevent the asset from adequately performing its intended function.

Read: For example, improperly sloped and bedded sewer lines will experience impeded gravity flow that will prevent the asset from adequately performing its intended function.

WDS - Water Distribution System Operation and Maintenance, Ed. 7, Manual
Page Number: 13

Table 1.2, “Primary drinking water regulations,” “Inorganic Chemicals”

For: Arsenic 0.05 mg/L

Read: Arsenic 0.01 mg/L

Page Number: 17

The page number (17) and running head (“Water Quality in Distribution Systems”) are missing.

Page Number: 147

Section 3.8.1, “Displacement Meters,” paragraph 1, line 3

For: 15 mm

Read: 15 cm

Page Number: 252

Section 4.9.1, “Disinfection of Mains,” paragraph 2, number 1, line 1

For: Liquid chlorine contains 100 percent available chlorine and is packaged in 100-pound, 150-pound, or 1-ton (45, 68, or 909 kg) steel cylinders.

Read: Gaseous chlorine contains 100 percent available chlorine and is packaged in 100-pound, 150-pound, or 1-ton (45, 68, or 909 kg) steel cylinders.

Page Number: 295

Section 5.3.3.2, “Reactions with Water,” first pink box, line 1

For: Hypochloric Acid

Read: Hydrochloric Acid

Page Number: 464

Number 3 (toward the bottom of the page), line 2

For: Table 6.8

Read: Table 6.7

Page Number: 538

Section 7.10.3.2 title

For: Cryptosporidium in water systems

Read: Cryptosporidium in Water Systems

Page Number: 585

“Appendix Outline,” A.9 and A.10

For:

A.9 Typical Water Treatment Plant Problems (English System) 672
A.10 Typical Water Treatment Plant Problems (Metric System) 686

Read:

A.9 Typical Water Distribution System Problems (English System) 672
A.10 Typical Water Distribution System Problems (Metric System) 686

Page Number: 607

“Rounding” sidebar (top right), paragraph 1, line 14

For: tenths

Read: tens

Page Number: 647

Section A.8.3.1, “Graphs and Charts,” paragraph 2, line 11

For: yaxis

Read: y-axis

Page Number: 716

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

WTPO1 - Water Treatment Plant Operation, Vol 1, Ed 7, Manual
Page Number: 5

Table 1.2, “Primary Drinking Water Regulations,” “Inorganic Chemicals”

For: Arsenic 0.05 mg/L

Read: Arsenic 0.01 mg/L

Page Number: 20

Table 1.5, “Chemical Types and Characteristics,” “Coagulants”

Replace the “Coagulants” section with:

Chemical Name Chemical Formula Commercial Concentration Comments
Coagulants
Aluminum Sulfate (Alum, granular) Al2(SO4)3 • 14 H2O 47–50% (Al2(SO4)3) Acidic
Ferric Chloride FeCl3 • 6 H2O 40% FeCl3 (liquid) Acidic
Ferric Sulfate Fe2(SO4)3 • 9 H2O 90–94% Fe2(SO4)3 Acidic, staining
Ferrous Sulfate FeSO4 • 7 H2O 55% (FeSO4) Cakes Dry
Cationic Polymer Varies Positively Charged
Anionic Polymer Varies Negatively Charged
Nonionic Polymer Varies  

Page Number: 67

Sidebar definition for “detention time,” equation

For: Detention Time [d]

Read: Detention Time [h]

Page Number: 97

Equation at bottom of page

For: Volume[g]

Read: Volume[gal]

Page Number: 133

Sidebar definition for “detention time,” equation

For: Detention Time [d]

Read: Detention Time [h]

Page Number: 150

Figure 3.12, “Plot of settled water turbidity vs. cationic polymer dosage”

The vertical axis (y-axis) should be labeled “Settled Water Turbidity, TU” and the horizontal axis (x-axis) should be labeled “Cationic Polymer Dosage, mg/L.”

Page Number: 174

Last paragraph, line 3

For: la-boratory-grade

Read: laboratory-grade

Page Number: 188

Example 18, Known column

For: Volumes of Setled Microsand

Read: Volumes of Settled Microsand

Page Number: 189

Example 18, number 2 equation, middle portion

For: 1,7000 [gal/L]

Read: 1,700 [g/L]

Page Number: 189

Example 18, number 2 equation, answer

For: 2.6 gal/L

Read: 2.6 g/L

Page Number: 202

Question 23, responses 1 through 4

For:

1. 1.9 gal/L
2. 2.3 gal/L
3. 2.8 gal/L
4. 3.8 gal/L

Read:

1. 1.9 g/L
2. 2.3 g/L
3. 2.8 g/L
4. 3.8 g/L

Page Number: 203

Chapter Outline

For: Chaper Review 256

Read: Chapter Review 256

Page Number: 204

Section 4.1, “Presedimentation,” paragraph 4, line 6

For: there servoir

Read: the reservoir

Page Number: 213

Section 4.3.1.3, “Circular and Square Basins,” line 6

For: problem

Read: problems

Page Number: 221

Figure 4.21, “Flow-through times for various types of sedimentation basins”

The vertical axis (y-axis) should be labeled “Actual Dye Concentration/Concentration If All Dye Mixed in Entire Basin” and the horizontal axis (x-axis) should be labeled “Actual Time/Calculated Detention Time.”

Page Number: 236

Number 3 equation, line 1

For: Alum Needing Alkalinity = [mg/L] Total Alum [mg/L]

Read: Alum Needing Alkalinity [mg/L] = Total Alum [mg/L]

Page Number: 257

Question 10, line 3

For: 2.0 GPM

Read: 2.0 MGD

Page Number: 281

Figure 5.12 note, line 1

For: headloss

Read: head loss

Page Number: 282

Figure 5.13, “Typical filter effluent turbidity data”

The horizontal axis (x-axis) should be labeled “Filtra¬Źtion Time (hours).”

Page Number: 313

Figure 5.19, “Illustration of cumulative particle counts and differential particle counts”

For: 2 - 5 (2 instances)

Read: 2–5

For: 5 - 20 (2 instances)

Read: 5–20

For: Cummulative

Read: Cumulative

Page Number: 334

Line between the first and second pink boxes

For: where

Read: or

Page Number: 367

Example 3, number 4

For: gallons (g)

Read: gallons (gal)

Page Number: 393

Section 6.7.2, “Operation,” line 1

For: chloride dioxide generator

Read: chlorine dioxide generator

Page Number: 424

Figure 6.29, top of graphic

For: Mixed Oxidant Solution

Read: Mixed-Oxidant Solution

For: Elecrtrolytic Cell

Read: Electrolytic Cell

Page Number: 426

Example 7, number 2, last line of note

For: one in Example 7

Read: one

Page Number: 426

Example 8, Known column, line 1

For: F = Chlorinator Setting = 7.2 lb/d

Read: Clfeed = Chlorinator Setting = 7.2 lb/d

Page Number: 426

Example 8, end of Known column

Insert: t = Time = 100 h

Page Number: 427

Example 8, number 1 equation, line 1

For: T

Read: t

Page Number: 430

Example 12, number 2

For: chlorine required (Clrequired)

Read: chlorine required (Clrequired)

Page Number: 436

Question 35, responses 1 through 4

For:

1. 11.5 lb/d
2. 13.6 lb/d
3. 15.8 lb/d
4. 17.3 lb/d

Read:

1. 1.6 %
2. 1.3 %
3. 1.5 %
4. 1.4 %

Page Number: 440

Sidebar definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

Page Number: 482

Section 7.8, “Math Assignment”

Delete bullet 2: A.7, “Pumps”

Page Number: 543

Figure 9.1 note

For: poper

Read: proper

Page Number: 547

Example 9

Insert sentence at the end of paragraph 1:

Because you get 1 Na+ for every NaCl, 0.025 mol/L of Na+ requires 0.025 mol/L of NaCl.

Page Number: 547

Example 9

Delete the last paragraph.

Page Number: 547

Section 9.2.3.3, “Normality,” items under “Where,”

For:

M = Molar Concentration (Molarity)
z = Number of H+ or OH Reaction Sites per Molecule

Read:

N = Normality
M = Molar Concentration (Molarity)
z = Number of H+ or OH (or Other H+) Reaction Sites per Molecule

Page Number: 547

Sidebar definition for “N (normal)” (corrected version)

A normal solution contains 1 gram equivalent weight of reactant (compound) per liter of solution. The equivalent weight of an acid is that weight that contains 1 gram atomic weight of ionizable hydrogen or its chemical equivalent. For example, the equivalent weight of sulfuric acid (H2SO4) is 49 (98 divided by 2 because there are 2 replaceable hydrogen ions). A 1.0 N solution of sulfuric acid would consist of 49 grams of H2SO4 dissolved in enough water to make 1 liter of solution.

Page Number: 551

“Corrosive Materials” section, “Miscellaneous Corrosive Chemicals” subsection, line 1

Insert a right parenthesis between “ferric chloride” and the comma that follows.

Page Number: 560

“WHAT IS TESTED” section, table column head

For: Common Range, NTU

Read: Common Range, pH

Page Number: 686

Section A.7.8 title

For: Pump Speed-Performance Relationships

Read: Pump Speed–Performance Relationships

Page Number: 770

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.

Page Number: 775

Glossary definition for “N (normal)” (corrected version)

A normal solution contains 1 gram equivalent weight of reactant (compound) per liter of solution. The equivalent weight of an acid is that weight that contains 1 gram atomic weight of ionizable hydrogen or its chemical equivalent. For example, the equivalent weight of sulfuric acid (H2SO4) is 49 (98 divided by 2 because there are 2 replaceable hydrogen ions). A 1.0 N solution of sulfuric acid would consist of 49 grams of H2SO4 dissolved in enough water to make 1 liter of solution.

WTPO2 - Water Treatment Plant Operation, Vol 2, Ed 7, Manual
Page Number: 337

Figure 5.1, top of graphic

For: MOLECUAR RANGE

Read: MOLECULAR RANGE

For: MACRO RANGE

Read: MICRO RANGE

For: MICRO PARTICLE RANGE

Read: MACRO PARTICLE RANGE

Page Number: 836

Glossary definition for “galvanic cell” (revised)

An electrolytic cell capable of producing electric energy by electrochemical reaction. The decomposition of materials in the cell causes an electric (electron) current to flow from anode to cathode.