## Detalhes

Prazo de entrega entre 3 a 4 semanas.

O recebimento de encomendas internacionais está sujeito a procedimentos aduaneiros e isto pode causar atrasos além do tempo estimado de entrega.

**Product Details**

Paperback: 799 pages

Publisher: CRC Press; 2 edition (May 6, 2014)

Language: English

ISBN-10: 1482224747

ISBN-13: 978-1482224740

**Description**

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 Editionhas 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.

Basic Mathematics for Water and Wastewater Operators introduces and reviews fundamental concepts critical to qualified operators. It builds a strong foundation based on theoretical math concepts, which it then applies to solving practical problems for both water and wastewater operations. Water Treatment Operations: Math Concepts and Calculations covers computations used in water treatment, and Wastewater Treatment Operations: Math Concepts and Calculations covers computations commonly used in wastewater treatment plant operations. The volumes present math operations that progressively advance to higher, more practical applications, 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, the volumes provide illustrative examples for commonly used waterworks and wastewater treatment operations covering unit process operations found in today’s treatment facilities. Readers working through the books systematically will acquire a definitive understanding of and skill in performing the applied water/wastewater calculations that are essential for a successful career in the water industry.

**Contents **

**Volume 1:**

Introduction

The 411 on Mathematics

Dimensional Analysis

Basic Units of Measurement and Conversions

Setting the Stage

Units of Measurement

Conversion Factors

Conversions

Wire-to-Water Calculations

Advanced Units of Measurement and Conversions

Sequence of Operations

Sequence of Operations Rules

Sequence of Operations Examples

Fractions, Decimals, and Percent

Fractions

Decimals

Percent

Rounding and Significant Digits

Rounding Numbers

Determining Significant Figures

Powers of Ten and Exponents

Rules

Powers

Examples

Averages (Arithmetic Mean) and Median

Averages

Median

Solving for the Unknown

Math Rules of Operation

Equations

Axioms

Solving Equations

Checking the Answer

Setting Up Equations

Summary of Key Points

Ratios and Proportions

Ratios

Proportions

Working with Ratios and Proportions

Electrical Calculations

Electrical Circuits and Power

Series DC Circuit Characteristics

Parallel DC Circuits

Circumference, Area, and Volume

Perimeter and Circumference

Area

Volume

Area Examples

Volume Examples

Force, Pressure, Head, and Velocity Calculations

Force and Pressure

Head

Velocity

Force, Pressure, Head, and Velocity Examples

Mass Balance and Measuring Plant Performance

Mass Balance for Settling Tanks

Mass Balance Using BOD Removal

Measuring Plant Performance

Plant Performance/Efficiency

Unit Process Performance and Efficiency

Percent Volatile Matter Reduction in Sludge

Pumping Calculations

Basic Water Hydraulics Calculations

Basic Pumping Calculations

Positive-Displacement Pumps

Pumping Examples

Water Source and Storage Calculations

Water Source Calculations

Water Storage

Water Storage Calculations

Copper Sulfate Dosing

Water/Wastewater Laboratory Calculations

Faucet Flow Estimation

Service Line Flushing Time

Composite Sampling Calculation (Proportioning Factor)

Biochemical Oxygen Demand 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

Chemical Dosage Calculations

Laboratory Examples

Basic Mathemathics Practice Problems

Basic Math Operations

Fundamental Water/Wastewater Operations

Appendix. Solutions to Chapter 17 Problems

Index

**Volume 2:**

Pumping Calculations

Pumping

Basic Water Hydraulics Calculations

Basic Pumping Calculations

Positive-Displacement Pumps

Water Source and Storage Calculations

Water Sources

Water Source Calculations

Water Storage

Water Storage Calculations

Copper Sulfate Dosing

Iron and Manganese Removal

Coagulation and Flocculation Calculations

Coagulation

Flocculation

Coagulation and Flocculation Calculations

Coagulation and Flocculation Practice Problems

Chemical Feeders

Chemical Feeder Calculations

Sedimentation Calculations

Sedimentation

Tank Volume Calculations

Detention Time

Surface Overflow Rate

Mean Flow Velocity

Weir Loading (Overflow) Rate

Percent Settled Biosolids

Determining Lime Dosage (mg/L)

Determining Lime Dosage (lb/day)

Determining Lime Dosage (g/min)

Sedimentation Practice Problems

Filtration Calculations

Water Filtration

Flow Rate through a Filter

Filtration Rate

Unit Filter Run Volume

Backwash Rate

Volume of Backwash Water Required

Required Depth of Backwash Water Tank

Backwash Pumping Rate

Percent Product Water Used for Backwatering

Percent Mud Ball Volume

Filter Bed Expansion

Filter Loading Rate

Filter Medium Size

Mixed Media

Head Loss for Fixed Bed Flow

Head Loss through a Fluidized Bed

Horizontal Washwater Troughs

Filter Efficiency

Water Filtration Practice Problems

References and Recommended Reading

Water Chlorination Calculations

Chlorine Disinfection

Determining Chlorine Dosage (Feed Rate)

Calculating Chlorine Dose, Demand, and Residual

Breakpoint Chlorination Calculations

Calculating Dry Hypochlorite Feed Rate

Calculating Hypochlorite Solution Feed Rate

Calculating Percent Strength of Solutions

Chemical Use Calculations

Chlorination Math Practice Problems

Fluoridation

Water Fluoridation

Fluoride Compounds

Optimal Fluoride Levels

Fluoridation Process Calculations

Fluoridation Math Practice Problems

Water Softening

Water Hardness

Determining Alkalinity

Determining Bicarbonate, Carbonate, and Hydroxide Alkalinity

Lime Dosage Calculation for Removal of Carbonate Hardness

Calculation for Removal of Noncarbonate Hardness

Recarbonation Calculation

Calculating Feed Rates

Ion Exchange Capacity

Water Treatment Capacity

Treatment Time Calculations (Until Regeneration Required)

Salt and Brine Required for Regeneration

Water Treatment Practice Calculations

Appendix. Solutions to Chapter 9 Problems

Index

**Volume 3:**

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