Product Description
"Wastewater Engineering: Treatment and Reuse, 4/e" is a thorough update of McGraw-Hill's authoritative book on wastewater treatment. No environmental engineering professional or civil or and environmental engineering major should be without a copy of this book. It describes the technological and regulatory changes that have occurred over the last ten years in this discipline, including: improved techniques for the characterization of wastewaters; improved fundamental understanding of many of the existing unit operations and processes used for wastewater treatment, especially those processes used for the biological removal of nutrients; greater implementation of several newer treatment technologies (e.g., UV disinfection, membrane filtration, and heat drying); greater concern for the long term health and environmental impacts of wastewater constituents; greater emphasis on advanced wastewater treatment and risk assessment for water reuse applications; changes in regulations and the development of new technologies for wastewater disinfection; and new regulations governing the treatment, reuse, and disposal of sludge (biosolids).Greater concern for infrastructure renewal including upgrading the design and performance of wastewater treatment plants. This revision contains a strong focus on advanced wastewater treatment technologies and stresses the reuse aspects of wastewater and biosolids. ... Read more

Customer Reviews (9)

Good product, long shipping time
The product came in great condition, just as described. It came on the latest possible day within the range of dates it might have been delivered, taking 2 weeks to reach me, but it did come and it was in very satisfactory condition.

Great Reference
This is the International version.It is great and has both SI and English units.I have not compared it to the hard cover, but this one is great - well worth the money (and savings).

Standard Engineering Reference for Wastewater Engineering
My need was to get up to speed rapidly on ultra violet disinfection.While I was waiting for the book to arrive, I spent several hours on the internet.When the book came in, it tied together all the "bits" I picked up thru my search and provided more detail on some of the critical aspects.
SparkyTom

fourth edition overdue!
there is a bit of truth in all the above reviews. It has not entirely been my bible, but more a Readers Digest version; if I need a quick answer, it is the first book I grab. Yes there are a lot of mathematical mistakes ormisprints in it,and that includes a good number of the worked examples,which rather defeats the purpose. Yes it is very American orientated, butit also has tables and footnotes throughout, giving useful or immediateconversions to other systems, well, metric that is, not imperial. There area lot nicer processes about, some definitely European. But that misses thepoint a bit: the most fundamental problem is that the book is nearly tenyears old. Therefore it is not surprising that newer processes are missing.I am desperately looking forward to a fourth edition, and I'll be the firstto buy it! In the meantime I'll keep using the third. But what happened tothe (Indian) paperback version, which was a lot better priced for a book ofthis age? Still, there is no substitute!

Review from a process engineer
The book gives the modern process engineer enough background to engineer complete waste water treatment plants. Specially the biological part is very good. Only at the physical chemical part, the information is based oninstallations produced in the US. The European (nicer) designes anddevelopments are not described in the book. ... Read more

Product Description
Wastewater Engineering: Treatment and Reuse, 4/e is a thorough update of McGraw-Hill's authoritative book on wastewater treatment.No environmental engineering professional or civil or and environmental engineering major should be without a copy of this book- tt describes the technological and regulatory changes that have occurred over the last ten years in this discipline, including: improved techniques for the characterization of wastewaters; improved fundamental understanding of many of the existingunit operations and processes used for wastewater treatment, especially those processes used for thebiological removal of nutrients; greater implementation of several newer treatment technologies (e.g., UV disinfection, membrane filtration, and heat drying); greater concern for the long term health and environmental impacts of wastewater constituents; greater emphasis on advanced wastewater treatment and risk assessment for water reuse applications; changes in regulations and the development of new technologies for wastewater disinfection; and new regulations governing the treatment, reuse, and disposal of sludge (biosolids).Greater concern for infrastructure renewal including upgrading the design and performance of wastewater treatment plants.

This revision contains a strong focus on advanced wastewater treatment technologies and stresses the reuse aspects of wastewater and biosolids. ... Read more

Customer Reviews (13)

THE BOOK for wastewater engineering
If you are an engineer who works in the wastewater field, you need this book... and probably already have it.Simply indespensible.

Interesting Book
This book is well written and relatively easy to read.It has proved to be very helpful in my Biological Principles of Environmental Engineering Class.

Where's my book
Its very nice of you to e-mail me and ask for my comments, but I think it would be even nicer if I actually received the book.I am STILL waiting...

The Wastewater Bible
I have used Metcalfe and Eddy's Wastewater Engineering from 3rd to 4th editions, and cannot think of a more comprehensive resource for all aspects of wastewater engineering from process design through to odour management through to water and sludge recycling.

The use of SI system in 4th edition is great and I agree with other users, the Bible is getting so big that it needs a searchable PDF to find references quickly.

The process equations have been updated to COD type design from older BOD standards, and allow for ease of process selection, with a good overview of strengths and weaknesses of each treatment type for attached growth, suspended processes and even advanced oxidation processes for removing remaining inorganics.

If there could be said to be a weakness perhaps there is one for tropical water temperatures of 32-35 degrees celcius, but this is dependant on the literature and research community due to lack of hi-tech development in the tropics.

I have tags on pages that are much used to speed access, wouldn't recommend students carry it as it is very big.

Unlike some expensive env engineering texts, this one is worth every penny.

Very Good Reference
I found this book helpful in my preperation for the exam. It is a listed reference by NCEES, and will be useful for the exam and in practice. ... Read more

Product Description
Publisher: American Public Health Association.Publication date: 1920Subjects: WaterSewageNature / Natural ResourcesScience / Chemistry / AnalyticScience / Environmental ScienceTechnology ... Read more

Product Description

Quick Access to the Latest Calculations and Examples for Solving All Types of Water and Wastewater Problems!

The Second Edition of Water and Wastewater Calculations Manual provides step-by-step calculations for solving a myriad of water and wastewater problems. Designed for quick-and-easy access to information, this revised and updated Second Edition contains over 110 detailed illustrations and new material throughout.

Written by the internationally renowned Shun Dar Lin, this expert resource offers techniques and examples in all sectors of water and wastewater treatment.Using both SI and US customary units, the Second Edition of Water and Wastewater Calculations Manual features:

• Coverage of stream sanitation, lake and impoundment management, and groundwater
• Conversion factors, water flow calculations, hydraulics in pipes, weirs, orifices, and open channels, distribution, outlets, and quality issues
• In-depth emphasis on drinking water treatment and water pollution control technologies
• Calculations specifically keyed to regulation requirements
• New to this edition: regulation updates, pellet softening, membrane filtration, disinfection by-products, health risks, wetlands, new and revised examples using field data

Inside this Updated Environmental Reference Tool

Customer Reviews (3)

The Perfect Handbook
I am completely satisfied with this purchase, as it is sufficiently detailed to be of immediate use, but not so theoretical as to lose a reader who is new to the subject. The book covers industry practice as well as theory, and the mathematics presented are thoroughly developed. Many books of this sort offer formulas, but no background to assist in applying them to specific situations. This book provides all that and more, and I found it to be a lifesaver when I was assigned to design a new sewer line. As an electrical engineer I have no previous experience in this field, but this book provided a crash course of immeasurable value. In fact, 30 days after purchasing it, my first sewer line design is being installed, and I've already found solutions to several long standing problems in our water distribution system! Rarely have I found so much practical information packed into a single volume, but despite the "information density" of the text, I found it interesting and easy to read.

I strongly recommend this book to anyone who needs to learn about water and wastewater systems in a hurry, and to any long time professionals who need a single reference on the shelf to help with the math.

calculation review
This is a very comprehensive book which covers hydrology as well as specific areas of water and wastewater treatment processes. I would recommend it for environmental engineers and technicians, consulting and otherwise, to learn how and why to do specific calculations.

Excellent problem solving guide
A high level and very useful guide for teachers and practitioners on the field. A treasure. I should have bought it years ago. ... Read more

Product Description

This workbook is a companion to Applied Math for Wastewater Plant Operators (ISBN: 9780877628095) and part of the Applied Math for Wastewater Plant Operators Set (ISBN: 9781566769891). It contains self-teaching guides for all wastewater treatment calculations, skill checks, hundreds of worked examples, and practice problems.

Customer Reviews (1)

Applied Math for Wastewater Plant Operators
An excellent book that allows you to learn and understand the formulas needed for the wastewater field. Easy to read and understand-a must have for anyone new to the field or anyone teaching a wastewter course. ... Read more

Product Description
Step-by-step procedures for planning, design, construction and operation: *Health and environment *Process improvements*Stormwater and combined sewer control and treatment*Effluent disposal and reuse*Biosolids disposal and reuse*On-site treatment and disposal of small flows*Wastewater treatment plants should be designed so that the effluent standards and reuse objectives, and biosolids regulations can be met with reasonable ease and cost. The design should incorporate flexibility for dealing with seasonal changes, as well as long-term changes in wastewater quality and future regulations. Good planning and design, therefore, must be based on five major steps:characterization of the raw wastewater quality and effluent, pre-design studies to develop alternative processes and selection of final process train, detailed design of the selected alternative, contraction, and operation and maintenance of the completed facility. Engineers, scientists, and financial analysts must utilize principles from a wide range of disciplines: engineering, chemistry, microbiology, geology, architecture, and economics to carry out the responsibilities of designing a wastewater treatment plant. The objective of this book is to present the technical and nontechnical issues that are most commonly addressed in the planning and design reports for wastewater treatment facilities prepared by practicing engineers. Topics discussed include facility planning, process description, process selection logic, mass balance calculations, design calculations, and concepts for equipment sizing. Theory, design, operation and maintenance, trouble shooting, equipment selection and specifications are integrated for each treatment process. Thus delineation of such information for use by students and practicing engineers is the main purpose of this book. ... Read more

Customer Reviews (3)

Wastewater treatment
Very good as a general overview on wastewater treatment systems. But contains very little on newer innovations such as Rotating Biological Contractors and focuses more on older technologies such as the activated sludge process.

Great book
I don`t have many books about wastewater treatment, but reading this book was very helpful to my project.... design a Wastewater Treatment plant

The best book of wastewater treatment plant design
This book is explained very clearly on how to design the WWTP. Especially, it is only book in the world that shows the design examples of the biological nutrient removal treatment processes. All design calculations are shown in every step that necessary for real design. ... Read more

Product Description

Practical Guidelines for Managing Information Technology in Water and Wastewater Utilities

This Water Environment Federation resource presents an overview of the information technology (IT) systems, practices, and applications most relevant to utilities. Information Technology in Water and Wastewater Utilities covers strategic planning, IT program development, project management, infrastructure, security, organizational issues, success factors, and challenges. Six real-world case studies highlight specific technical details and illustrate the concepts presented in this authoritative guide.

Information Technology in Waste and Wastewater Utilities covers:

• Business drivers and IT systems and applications
• IT planning
• Developing an IT program for a municipal agency
• IT capital project management
• IT systems--processes and practices
• IT security
• Organizational aspects of IT
• Critical success factors and key future challenges for IT in water and wastewater utility projects

Product Description
In a simple, straightforward manner, this book presents most of the major process units for wastewater treatment, addressing what the unit is and how it basically works. Along with that it provides some of the math problems associated with each unit. Each math problem, presented in English units, is usually followed by a nearly identical problem in metric units. It also presents new concepts, such as information on process microbiology, in a comfortable language so the reader can concentrate on the subject matter instead of the language used to present it. Simplified Wastewater Treatment Plant Operations provides comprehensive and technically accurate wastewater information in a clear and concise manner. The related workbook provides readers with a place to write in answers and work out problem solutions. ... Read more

Customer Reviews (1)

Great Introduction For Wastewater Treatment Operations
This book provides a superb, easy to understand description of thestep-by-step process of wastewater plants.The author clearly wrote thisbook for someone beginning in the field of environmental engineering (suchas myself). All of today's main processes are discussed with examples anddetailed sketches which allow you to really understand the operationswithout being lost in lots of high tech terminology. Chemical reactions arealso explained very clearly so you can understand the reactions withoutbeing a PhD in chemistry.I highly recommend this book for envionmentalengineering students and new engineers in the wastewater industry. ... Read more

Product Description
This volume is the only resource that describes and explains in simple, non-mathematical terms the unit processes used to treat both drinking water and wastewater. Designed to meet the information needs of professionals without an engineering background, the text presents each unit process, states what function(s) it performs, illustrates what equipment it uses, and explains what its role is in the process of purifying or cleaning water. In addition, the book places water treatment technologies in the context of overall plant operation. In addition, it explains related topics such as plant management and environmental regulations. ... Read more

Customer Reviews (3)

Good introductory material
I found this text useful as a mnemonic, a memory tool. There are useful explanations of conventional tools for treating wastewater and water. You won't find many useful graphics but it is a book for the non-professionals. Personally, I find such textbooks useful because of the varied business of the design engineer. One year you're working steel mills next year chemical plants, a few years later refineries.

I know this review is brief but I hope it was useful. I recommend this book for what it is: a how-does-it-work text.

Very good book
Very good book. I am not an engineer, but work in water treatment business. This book gave me a propper understanding of the water treatment process. Now when our engineers talk about water treatment I understand everything. It is a first book that everyone should read before they try more difficult and professional literature.

Water/Wastewater Treatment for the Non-engineering Professio
This is the best, most concise text on this topic that I have seen. ... Read more

Product Description
Water and Wastewater Management in the Tropics provides the necessary conceptual framework and tools to assess all appropriate aspects of water and sanitation projects in developing countries. Using the lessons learned from courses taught at the Technical University of Denmark, Water and Wastewater Management in the Tropics is the concerted effort of a broad team including "hard core" engineers and practitioners as well as "soft core" environmental and institutional planners and economists, with contributions from renowned researchers as well as seasoned project managers. The first part of the book aims to give a basic understanding of international projects and addresses how to identify, formulate, select, organise, cost, finance, implement and manage water and wastewater management projects in developing countries. Later chapters focus on three different types of water and wastewater management projects in a tropical context: rural water and sanitation; urban water and wastewater management; and, industrial water and wastewater management.Water and Wastewater Management in the Tropics will appeal to graduate environmental engineering students but also to practitioners, economists, sociologists, and institutional planners working with water and sanitation projects in developing countries. ... Read more

Product Description
The new edition of a classic reference incorporating the latest findings and discoveries

The Third Edition of this classic reference provides readers with concise, up-to-the-moment coverage of the role of microorganisms in water and wastewater treatment. By providing a solid foundation in microbiology, microbial growth, metabolism, and nutrient cycling, the text gives readers the tools they need to make critical decisions that affect public health, as well as the practical aspects of treatment, disinfection, water distribution, bioremediation, and water and wastewater reuse.

The publication begins a discussion of microbiology principles, followed by a discussion of public health issues and concerns. Next, the core of the text is dedicated to a thorough examination of wastewater and drinking water treatment, biosolids, pollution-control biotechnology, and drinking water distribution. The remainder of the text discusses toxicity testing in wastewater treatment plants, and the public health aspects of wastewater disposal and reuse.

The many advances in wastewater and drinking water microbiology have all been thoroughly integrated into the publication, including:

* A new chapter on bioterrorism and drinking water safety
* The latest developments in biofilm microbial ecology and biofilm impact on drinking water quality
* New, state-of-the-art detection techniques
* Expanded and revised treatment of toxicity testing, including new testing methods and studies on endocrine disrupters in wastewater
* Alternatives to conventional wastewater treatment

New problem sets, which test readers' knowledge, as well as a list of Internet resources have been added to each chapter. In addition, the publication's extensive references have been thoroughly revised for readers who would like to learn more about the latest findings and discoveries on specialized topics. Finally, the color plate section has been expanded and contains many new illustrations and tables.

An authoritative guide for all researchers, administrators, and engineers in the field of microbiology, Wastewater Microbiology, Third Edition is also a valuable reference for civil and environmental engineers, public health officials, and students involved in environmental engineering and science. ... Read more

Customer Reviews (1)

textbook
My son could not find this college textbook locally and you had it and got it to him quickly. ... Read more

Product Description
A best-seller in the field of water and wastewater engineering and technology, this book provides the fundamental principles and management practices in water technology. All major systems and operations are covered concisely yet comprehensively. Topics include: water processing, water distribution, wastewater collection, wastewater treatment, sludge processing, and water reuse. Introductory chapters provide a review of pertinent aspects of chemistry, biology, hydraulics and hydrology, and water quality. For those individuals in the field of sanitary technology and engineering as well as those interested in the operation and maintenance of water and wastewater facilities. ... Read more

Customer Reviews (5)

Better than expected
your product was in almost perfect condition, much better than your listing of good condition and it also arrived in only three days. awesome job

OK
Brand new book in great condition, so no complaints there. But if you are looking for a good book to learn about wastewater technology, i think there are much better ones out there than this one.

Water and Wastewater Technology
Book is great and it covers all condensed material essential for water/wastwater/collection and distribution system.

First purchase
For the first time ordering an item off amazon it was easy.With this experience I will order again if the need arises.The book was in good shape.Overall it was a good experience.

Water and Wastewater Tech.
Some spots (maybe from grease or food) along the pages of the book, but overall quick delivery ... Read more

Product Description

With many worked examples, this book provides step-by-step instruction for all calculations required for wastewater treatment. Pertinent calculations are conveniently summarized in each chapter. The text covers all the fundamental math concepts and skills needed for daily wastewater treatment plant operations. The workbook for this book can be purchased separately or together in the Applied Math for Wastewater Plant Operators Set (ISBN: 9781566769891).

Product Description

Hailed on first publication as a straightforward, practical, and to-the-point account of wastewater principles, practices, and operations for general readers, students, and wastewater operators in training and for all levels of operators at any level of licensure, Spellman’s Standard Handbook for Wastewater Operators Volumes I, II, and III almost instantly became the standard resource for this field. The second edition continues the tradition, exploring important aspects of wastewater operations and operator preparation for licensure examinations.

Each volume has been upgraded, updated, and expanded to include additional pertinent information to better prepare each qualified user for professional licensure. More than just a study guide or readily accessible source of information for preparing wastewater personnel for operator certification and licensure, this three-volume resource manual and troubleshooting guide compiles wastewater treatment information, data, operations material, process control procedures, safety and health information, new trends in wastewater treatment administration and technology, and numerous sample problem-solving practice sets. Drawing on Frank Spellman’s expertise and experience, this book provides:

• Instant access to information that aids in the efficient operation of a wastewater treatment plant
• Basic information and sample problem sets needed to prepare for state licensing and certification examinations
• User-friendly, straightforward fundamental reference material organized into three focused volumes

Contrary to popular belief, treating wastewater is not just a science, but both an art and a science. It requires technical expertise, experience, and an understanding of a broad range of available technologies. With coverage ranging from pumping and screening influent, treating the waste stream, through managing biosolids, this three-volume set provides easy-to-understand state-of-the-art information in an accessible format. Though formatted at three separate levels, overlap between each volume not only ensures continuity and a smooth read form volume to volume, but makes each one a handheld, stand-alone reference that presents essential information in a precise, efficient, and effective manner.

Product Description
The activated sludge process is the most versatile, commonly used wastewater treatment system in North America; however, many activated sludge processes frequently experience operational problems related to poor compaction or settleability of secondary solids and loss of secondary solids from the clarifier. Eschewing the technical jargon and copious chemical equations found in the majority of wastewater studies, Settleability Problems and Loss of Solids in the Activated Sludge Process speaks directly to plant operators, showing them how to identify and solve common problems and achieve maximum efficiency.

Michael H. Gerardi’s hands-on guide addresses the most common plant operational problems, such as increased costs, loss of treatment efficiency, and permit violations. Using numerous tables and illustrations, Settleability Problems provides microscopic and analytical techniques for troubleshooting and identifying the conditions responsible for settleability problems and loss of solids. It includes pictures of wet mounts and smears of acceptable and unacceptable microscopic conditions of the activated sludge and presents corrective measures for operational problems. Chapters include:

-Undesired Filamentous Growth
-Nutrient-Deficient Floc Particles
-Denitrification
-Slug Discharge of Soluble cBOD
-Viscous Bulking or Zoogloeal Growth
-Production and Accumulation of Foam and Scum

Volume II in the series, Settleability Problems will prove to be of unparalleled value to wastewater treatment plant operators as well as students of wastewater microbiology. ... Read more

Customer Reviews (1)

Settleability Problems and Loss of Solids in the Activated Sludge Process
This is a great book for troubleshooting settleability problems in activated sludge processes.It is easy to read and understand.It takes all of the best information from the most expensive references, such as MOP-11 by WEF and the "Wastewater Bible" as I call it from Metcalf & Eddy and translates it into material that a plant operator can read in one or two days and be able to make process changes immediately to help solve the problems they are experiencing.Even a most seasoned operator will find this book to be a great reveiw for thoses subtle details that we forget about when our plants are operating well and I highly recommend it for anyone just getting into the wastewater field or anyone interested in how the biological section of wastewater plants work. ... Read more

Product Description

An In-Depth Guide to Water and Wastewater Engineering

This authoritative volume offers comprehensive coverage of the design and construction of municipal water and wastewater facilities. The book addresses water treatment in detail, following the flow of water through the unit processes and coagulation, flocculation, softening, sedimentation, filtration, disinfection, and residuals management. Each stage of wastewater treatment--preliminary, secondary, and tertiary--is examined along with residuals management.

Water and Wastewater Engineering contains more than 100 example problems, 500 end-of-chapter problems, and 300 illustrations. Safety issues and operation and maintenance procedures are also discussed in this definitive resource.

Coverage includes:

• Intake structures and wells
• Chemical handling and storage
• Coagulation and flocculation
• Lime-soda and ion exchange softening
• Reverse osmosis and nanofiltration
• Sedimentation
• Granular and membrane filtration
• Disinfection and fluoridation
• Removal of specific constituents
• Drinking water plant residuals management, process selection, and integration
• Storage and distribution systems
• Wastewater collection and treatment design considerations
• Sanitary sewer design
• Headworks and preliminary treatment
• Primary treatment
• Wastewater microbiology
• Secondary treatment by suspended and attached growth biological processes
• Secondary settling, disinfection, and postaeration
• Tertiary treatment
• Wastewater plant residuals management
• Clean water plant process selection and integration

Product Description
This book provides a very basic overview of microorganisms relevant to wastewater treatment plant operator. It easy-to-understand language it provides explanations and descriptions of helpful and harmful bacteria, protozoa, and metazoa, algae, and fungus -- and their specialized function in the treatment process, helping the operator to effectively manage the Plant bacterial process. Color photos and illustrations are included within the book and on the supplemental CD-ROM for quick identification under the microscope. ... Read more

Customer Reviews (1)

necessary reference
The pictures are very detailed.Identification can be made based on material in the text. ... Read more

Product Description
Although initially based purely on environmental principles of reuse and recycling, natural waste treatment systems proved to have economic advantages over mechanical systems in many cases, being less expensive to build and operate as well as requiring less energy. Thus, natural waste treatment methods reemerged even as advanced wastewater treatment technologies exploded in growth. Reflecting this burgeoning popularity, Natural Wastewater Treatment Systems is the first book to integrate all the major types of natural treatment systems into a single source.

Beginning with an overview of the types of natural treatment systems, the book outlines the planning, feasibility assessment, and site selection processes unique to natural processes as well as the basic process responses and interactions governing natural systems. The authors then examine the systems in detail, discussing wastewater pond systems, free water surface constructed wetlands, subsurface and vertical flow constructed wetlands, land treatment, sludge management, and onsite wastewater systems. They illustrate the practical aspects through 30 examples; include 178 data tables for comparing costs, performance, and constraints; and describe new approaches to partially mixed ponds, including dual-powered aeration ponds.

Written by eminent experts in natural waste treatment, Natural Wastewater Treatment Systems is an invaluable tool for selecting, planning, and implementing ecologically and economically sound wastewater treatment systems. ... Read more

Customer Reviews (1)

passing the torch
I have been a consulting engineer for over 20 years now, and this book has a lot to offer.It sits on the top shelf of my bookcase when I need simple answers fast.The original edition of this book was essentially a summarization of design manuals published by the U.S. Environmental Protection Agency in the late 1970's and early 1980's.If you are old enough to have these original "purple manuals" on your shelf (and actually use them), then you probably don't need this book.

But the reality in the environmental engineering field is that most of the "old guard" who worked in the Construction Grants and Superfund program are at, or close, to retirement.If you are part of the new generation entering the field, this is a great book as it essentially encapsulates 4 of the old EPA manuals, plus you get the benefit of the extensive career experience of the authors.

This book did not get 5 stars in my review because most of the data analysis is from the late 1980's and early 1990's, and there are a lot empirical equations drawn from this old (and limited) data set.Most of the observations on "new" technology developments are in the literature review sections and the design equations have not necessarily been updated to reflect new research findings.Since 90% of the data on natural treatment systems has been published in the last 10 years, readers should be aware that assumptions behind old equation sets are limited and need to treated critically.

If you have an interest in natural wastewater treatment systems, this is a good starting point for the environmental engineer and a great overview manual for other practitioners in the field.If you want to specialize at a graduate-school level in a particular technology like constructed wetlands or pond systems, then you will have to dig deeper to find the cutting edge in more specialized books and the research journal literature. ... Read more