Wastewater Treatment Fundamentals II-- Solids Handling and Support Systems Operator Certification Study Questions
These questions are also included as "Test Your Knowledge" questions in the Wastewater Treatment Fundamentals II--Solids Handling and Support Systems training manual and online course developed in collaboration with the Association of Boards of Certification (ABC). This separate study guide is intended for those operators who do not have the opportunity to use the training manual or online course for study. The peer-reviewed resources in the Wastewater Treatment Fundamentals series represent the expertise of hundreds of water quality professionals. They align with updated Need-to-Know Criteria from the Association of Boards of Certification and are based on WEF’s extensive existing resource collection, including Operation of Water Resource Recovery Facilities, MOP 11. This study guide is a perfect companion for operators preparing for their first levels of the certification examination and for trainers interested in giving their students an opportunity to practically apply what they’ve learned.
1139788207
Wastewater Treatment Fundamentals II-- Solids Handling and Support Systems Operator Certification Study Questions
These questions are also included as "Test Your Knowledge" questions in the Wastewater Treatment Fundamentals II--Solids Handling and Support Systems training manual and online course developed in collaboration with the Association of Boards of Certification (ABC). This separate study guide is intended for those operators who do not have the opportunity to use the training manual or online course for study. The peer-reviewed resources in the Wastewater Treatment Fundamentals series represent the expertise of hundreds of water quality professionals. They align with updated Need-to-Know Criteria from the Association of Boards of Certification and are based on WEF’s extensive existing resource collection, including Operation of Water Resource Recovery Facilities, MOP 11. This study guide is a perfect companion for operators preparing for their first levels of the certification examination and for trainers interested in giving their students an opportunity to practically apply what they’ve learned.
114.99 In Stock
Error occurred while rendering Product Content.

Overview

These questions are also included as "Test Your Knowledge" questions in the Wastewater Treatment Fundamentals II--Solids Handling and Support Systems training manual and online course developed in collaboration with the Association of Boards of Certification (ABC). This separate study guide is intended for those operators who do not have the opportunity to use the training manual or online course for study. The peer-reviewed resources in the Wastewater Treatment Fundamentals series represent the expertise of hundreds of water quality professionals. They align with updated Need-to-Know Criteria from the Association of Boards of Certification and are based on WEF’s extensive existing resource collection, including Operation of Water Resource Recovery Facilities, MOP 11. This study guide is a perfect companion for operators preparing for their first levels of the certification examination and for trainers interested in giving their students an opportunity to practically apply what they’ve learned.

Product Details

ISBN-13: 9781572784031
Publisher: Water Environment Federation
Publication date: 09/10/2021
Series: Wastewater Treatment Fundamentals
Pages: 166
Product dimensions: 8.50(w) x 11.00(h) x 0.40(d)

About the Author

WEF publishes books and resources that are essential to helping water quality professionals enhance their skills, further their technical knowledge, and advance their careers.

Table of Contents

Association of Boards of Certification Formulas ix

Chapter 1 Introduction to Solids Handling 1

Solids Characteristics 1

Solids Handling 2

Reducing Volume 3

Sludge Conditioning 4

Laboratory Testing 6

Reduction Requirements 8

Chapter 2 Thickening 9

Purpose and Function of Thickening 9

Gravity Thickening 9

Dissolved Air Flotation Thickening 10

Gravity Belt Thickeners 11

Centrifuge Thickening 12

Rotary Drum Thickeners 13

Polymer Systems 13

Safety Considerations 15

Chapter 3 Aerobic Digestion 17

Biological Treatment Fundamentals Review 17

Theory of Operation 17

Design Parameters and Expected Performance 20

Equipment 21

Hydraulic Detention Time and Solids Retention Time 21

Other Process Variables 23

Process Control 25

Operation 26

Monitoring, Maintenance, Troubleshooting, and Safety 27

Chapter 4 Anaerobic Digestion 29

Theory of Operation 29

Design Parameters and Expected Performance 30

Equipment 31

Process Variables and Process Control 34

Operation 36

Data Collection, Sampling, and Analysis and Maintenance 37

Safety Considerations 38

Chapter 5 Dewatering 41

Purpose and Function of Dewatering 41

Centrifuges for Dewatering 41

Belt Filter Presses 42

Rotary Presses 44

Screw Presses 45

Drying Beds 46

Other Dewatering Processes 47

Sludge Cake Conveyors 47

Dewatered Sludge Storage and Hauling 48

Odor Control and Safety 48

Chapter 6 Electrical Fundamentals and Motors 49

What Is Electricity? 49

Properties of Electricity 50

Relationships Between Properties of Electricity 51

Parallel and Series Circuits 52

Direct Current and Alternating Current 52

Transformers and Short Circuits and Ground Faults 53

Motors 54

Nameplate Information 55

Motor Control and Routine Motor Operation and Maintenance 56

Electrical Prints and Disconnects and Motors 57

Push Buttons and Switches 58

Relay Coils and Contacts 59

Safety-Related Work Practices 59

Chapter 7 Pumps and Lift Stations 61

Classification of Pumps 61

Centrifugal Pumps 61

Positive Displacement Pumps 64

Diaphragm and Disc Pumps 65

Plunger Pumps 66

Piston Pumps 67

Rotary Lobe Pumps 68

Progressing Cavity Pumps 68

Screw Pumps 68

Peristaltic Pumps 69

Lift Stations/Pumping Stations 69

Chapter 8 Aeration Systems 73

Aeration Theory 73

Types of Aeration Systems 73

Diffused Air Systems 74

Blowers 74

Blower Selection Criteria 75

Common Blower Accessories 75

Centrifugal Blowers 77

Integrally Geared Single-Stage Centrifugal Blowers 78

Multistage Centrifugal Blowers 78

High-Speed-Driven (Turbo) Blowers 78

Positive Displacement Blowers 79

Hybrid Rotary Screw Blowers 80

Air Distribution Piping and Valves 80

Diffusers 80

Aeration System Control 81

Jet Aeration Systems 81

Surface Aerators 82

Horizontal Rotors 82

Mixer Aerators 82

Chapter 9 Laboratory Procedures 85

Flow Measurement 85

Sampling 85

Purposes of Sampling 86

Sample and Measurement Collection 87

Sampling Equipment 88

Sample Handling 90

Quality Assurance and Quality Control 91

Analytical Methods 93

pH (Hydrogen Ion Concentration) 95

Total Alkalinity of Wastewater and Sludge 95

Total Suspended Solids (Nonfilterable Residue) 96

Biochemical Oxygen Demand 98

Chapter 10 Chemical Storage, Handling, and Feeding 101

Purpose and Function 101

Theory of Operation 101

Design Parameters 102

Equipment 102

Receiving Facilities 103

Chemical Transfer 103

Dry Chemical Systems 104

Liquid Chemical Systems 105

Gas Chemical Systems 106

Chemical Application 107

Process Variables 107

Calculating the Mass of Active Chemical in Neat Chemical and Element or Ion of Use in the Active Chemical 108

Chemical Dose 108

Using ABC Equations for Chemical Feed Pump Settings 109

Reaction Time 110

Side Reactions 110

Process Control 110

Chemical Safety 111

List of Acronyms 113

Answer Keys 117

Periodic Table 143

From the B&N Reads Blog

Customer Reviews