Lumpy Water Math


Book Description

Lumpy Water Math was written to help wastewater treatment plant operators and collection system operators with the basic problem solving ability needed to evaluate and control these systems. This understanding will help the operator use math in day-to day operation as well as help prepare for certification exams. The math will be helpful to water supply and distribution system operators as the math used is basically the same.The instruction begins with basic instruction in solving for areas and volumes, detention time, flow calculations, hydraulic and organic loading and progresses to specialty areas such as activated sludge and laboratory calculations. The book includes tips for making problem solving and use of calculators easier. Typical state design standards are listed so that problem answers can be compared to accepted values. The book includes many practice problems with answers given in the appendix to help operators become proficient in basic problem solving.







Math for Wastewater Treatment Operators Grades 1 and 2


Book Description

Most wastewater operators cite mathematics as the subject giving them the most difficulty on their operator certification exams, as well as on the job. This math study text is designed to help wastewater operators improve their math skills, pass certification exams, perform their jobs better, and advance their careers. The guide provides examples of a variety of different problems that will be encounted both on Grades 3 and 4 certification exams and on the job. Each problem is presented with easily followed steps and comments to facilitate understanding. Tests with answers are included after each grade level to help you determine where your strengths and weaknesses are. Appendices provide common conversion factors, a summary of the equations used in the book, chemistry tables, maximum contaminant level charts, and abbreviations to which you can refer when working out the problems.







Mind Tools


Book Description

Originally published: Boston: Houghton Mifflin, 1987.




watermaths


Book Description

Watermaths presents the mathematics underpinning the design and operation of the individual unit process technologies used for purifying water and wastewater. The book aims to provide the reader with sufficient information to enable them to tackle the most important calculations in this area, without requiring any prior knowledge of the subject and assuming only a very basic grounding in science or engineering. It focuses on the most essential areas of knowledge required, containing tuition in basic numeracy, chemistry, process engineering and fluid physics, as well as cost analysis. The simple and succinct delivery is designed to get the reader up to speed as rapidly as possible: sufficient background information is provided to explain the purpose of the calculations, and ultimately tackle the complete wastewater reclamation plant design problem included in the book. Example calculations are provided within each chapter, each followed by exercises intended to reinforce the learning (and for which solutions are appended). Exercises range in difficulty from simple single calculational-step problems to more complex ones, and the over-arching design problem provides some context to the mathematics. The book can be understood by those relatively new to the water sector, and is intended as a primer rather than a comprehensive handbook. It is nonetheless sufficiently comprehensive to permit design calculations for most water and wastewater treatment unit processes. Core disciplines covered include: • manipulation of equations, including logarithmic and exponential expressions • fluid physics for describing flow through pipes, channels and filters • chemical concentrations and chemical/biochemical reactions • chemical/biochemical reaction kinetics • mass balance for determining fate of materials through unit processes • mass transfer for determining transfer of materials across boundaries within processes • reactor theory for designing biochemical and chemical reaction vessels • cost analysis, including capital and operating expenditure with discounting. New to the third edition: • new chapter on cost analysis • further explanation of the classical unit operations types • illustrations expanded to include unit operation schematics and symbols • new examples and exercises • updated design problem. Watermaths … just add water.




Wastewater Operator Certification Exam Prep


Book Description

Pass your wastewater certification exam the first time! This study guide is specially developed to give wastewater operators practice answering questions that are similar in format and content to the questions that appear on certification exams. Sample questions are provided for grades 1, 2, 3, and 4 wastewater operator certification exams, so you can study the questions that are specific to your grade level. Answers and references are included for questions. Math questions include the method to solve. AWWA's most popular operator training aid, this study guide is specially designed to give water operators and students practice in answering questions that are similar in format and content to the questions that appear on state certification exams. Sample questions and answers for both wastewater treatment and collections systems are included.




Dante's Equation


Book Description

From the author of Judgment Day and creator of the popular Gabriel Knight computer games comes an edge-of-the-seat science-fiction thriller that weaves together elements of the Kabbalah and physics with doorways to other worlds.




Practice Exams


Book Description

This book is for newer wastewater treatment operators who are studying for the Grade 2 exam (second certification level from the bottom). It contains 360 questions that help operators prepare for the wastewater treatment operator certification exam. There are 4 full-length practice exams in this book. Each test consists of 90 questions that cover wastewater treatment concepts and relevant math problems. The first two exams are all multiple choice, while the last two exams contain both true/false and multiple choice questions. Topics covered: Preliminary Treatment, Screening, Grit Channel, Primary Treatment, Primary Sedimentation, Secondary Treatment, Trickling Filters, Activated Sludge, RBC, Secondary Sedimentation, Waste Stabilization Ponds, Disinfection, Sludge Handling, Anaerobic Digestion, Safety, Sampling, Pumps, Laboratory Work, Analysis of Wastewater Constituents, and Basic Supervision Responsibilities. Math Section: Hydraulic Loading, Organic Loading, SVI, Removal Efficiency, F/M Ratio, MCRT, Pumping Rate, Percent Volatile Solids Reduction, Flowrate of Primary Sludge, Detention Time, Chlorine Residual and Demand, Weir Overflow Rate, Sludge Age, Surface Loading Rate, Solids Loading Rate, and Population Loading.




Practical Meteorology


Book Description

A quantitative introduction to atmospheric science for students and professionals who want to understand and apply basic meteorological concepts but who are not ready for calculus.