2nd Edition

Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations Math Concepts and Calculations

By Frank R. Spellman Copyright 2014
    258 Pages 30 B/W Illustrations
    by CRC Press

    258 Pages
    by CRC Press

    To properly operate a waterworks or wastewater treatment plant and to pass the examination for a waterworks/wastewater operator’s license, it is necessary to know how to perform certain calculations. All operators, at all levels of licensure, need a basic understanding of arithmetic and problem-solving techniques to solve the problems they typically encounter in the workplace.

    Hailed on its first publication as a masterly account written in an engaging, highly readable, user-friendly style, the Mathematics Manual for Water and Wastewater Treatment Plant Operators, Second Edition has been expanded and divided into three specialized texts that contain hundreds of worked examples presented in a step-by-step format. They are ideal for all levels of water treatment operators in training and practitioners studying for advanced licensure. In addition, they provide a handy desk reference and handheld guide for daily use in making operational math computations.

    This third volume, Wastewater Treatment Operations: Math Concepts and Calculations, covers computations commonly used in wastewater treatment with applied math problems specific to wastewater operations, allowing operators of specific unit processes to focus on their area of specialty. It explains calculations for flow, velocity, and pumping; preliminary and primary treatments; trickling filtration; rotating biological contactors; and chemical dosage. It also addresses various aspects of biosolids in wastewater, treatment ponds, and water/wastewater laboratory calculations. The text presents math operations that progressively advance to higher, more practical applications of mathematical calculations, including math operations that operators at the highest level of licensure would be expected to know and perform. To ensure correlation to modern practice and design, this volume provides illustrative problems for commonly used wastewater treatment operations found in today’s treatment facilities.

    Flow, Velocity, and Pumping Calculations
    Velocity and Flow Examples
    Velocity and Flow Practice Problems
    Pumping
    Basic Water Hydraulics Calculations
    Basic Pumping Calculations
    Positive-Displacement Pumps

    Preliminary Treatment Calculations
    Wet Well Capacity and Pumping Rate
    Screening
    Grit Removal
    Screening and Grit Removal Practice Problems

    Primary Treatment Calculations
    Process Control Calculations
    Primary Treatment Practice Problems

    Trickling Filter Calculations
    Trickling Filter Process Calculations
    Trickling Filter Practice Problems

    Rotating Biological Contactors
    RBC Process Control Calculations
    RBC Practice Problems

    Activated Biosolids
    Activated Biosolids Process Control Calculations
    Activated Biosolids Practice Problems

    Treatment Ponds
    Treatment Pond Parameters
    Treatment Pond Process Control Calculations
    Treatment Pond Practice Problems

    Chemical Dosage Calculations
    Chemical Dosing
    Chemical Dosage Practice Problems

    Biosolids Production and Pumping Calculations
    Process Residuals
    Primary and Secondary Solids Production Calculations
    Percent Solids
    Biosolids Pumping
    Biosolids Production and Pumping Practice Calculations

    Biosolids Thickening Calculations
    Thickening
    Gravity/Dissolved Air Flotation Thickener Calculations
    Centrifuge Thickening Calculations
    Biosolids Thickening Practice Problems

    Biosolids Digestion
    Biosolids Stabilization
    Aerobic Digestion Process Control Calculations
    Anaerobic Digestion Process Control Calculations
    Biosolids Digestion Practice Problems

    Biosolids Dewatering and Disposal
    Biosolids Dewatering
    Pressure Filtration Calculations
    Rotary Vacuum Filter Dewatering Calculations
    Sand Drying Bed Calculations
    Biosolids Disposal
    Biosolids to Compost
    Biosolids Dewatering and Disposal Practice Problems

    Water/Wastewater Laboratory Calculations
    The Wastewater Lab
    Composite Sampling Calculation (Proportioning Factor)
    Biochemical Oxygen Demand (BOD) Calculations
    Moles and Molarity
    Normality
    Settleability (Activated Biosolids Solids)
    Settleable Solids
    Biosolids Total Solids, Fixed Solids, and Volatile Solids
    Wastewater Suspended Solids and Volatile Suspended Solids
    Biosolids Volume Index and Biosolids Density Index

    Wastewater Treatment Practice Calculations
    Appendix A.
    Solutions to Chapter 14 Problems
    Appendix B. Formulas

    Biography

    Frank R. Spellman, PhD , is a retired assistant professor of environmental health at Old Dominion University, Norfolk, Virginia, and the author of more than 90 books covering topics ranging from concentrated animal feeding operations (CAFOs) to all areas of environmental science and occupational health. He consults on homeland security vulnerability assessments for critical infrastructures, including water/wastewater facilities, and conducts audits for Occupational Safety and Health Administration and Environmental Protection Agency inspections throughout the country. Dr. Spellman lectures on sewage treatment, water treatment, and homeland security, as well as on safety topics, throughout the country and teaches water/wastewater operator short courses at Virginia Tech in Blacksburg.