A comprehensive guide to understanding the biology and biological conditions of the treatment process

Due to the importance of anaerobic digesters in wastewater treatment processes, a review of the microbiology of the bacteria and the operational conditions that affect their activity are of value in addressing successful and cost-effective operation.

The Microbiology of Anaerobic Digesters – the third book in the Wastewater Microbiology Series – provides an in-depth review of the bacteria, their activity, and the operational conditions that affect anaerobic digester performance. Avoiding the technical jargon, chemical equations, and kinetics that typically accompany such texts, this comprehensive resource also discusses troubleshooting and process control measures that will allow you to maintain treatment efficiency, prevent system upsets, and reduce operational costs.

Prepared for an audience of operators and technicians who are responsible for the daily operation of anaerobic digesters, The Microbiology of Anaerobic Digesters covers important issues in this field, including:

• Substrates, products, and biogas
• Operational conditions, including nutrients, temperature, and alkalinity
• Process controls and troubleshooting
• Types of digesters

Fixed film anaerobic digesters are becoming more and more common in the treatment of soluble organic compounds in wastewater. The Microbiology of Anaerobic Digesters will introduce readers to this important topic and provide them with the necessary information for understanding biological conditions of this treatment process.

A practical guide to wastewater bacteria and the roles they perform in wastewater treatment
Communicating material in a practical manner for operators and technicians who regulate and troubleshoot their wastewater treatment processes, Wastewater Bacteria discusses the effective control and proper operation of aerobic (activated sludge) and anaerobic (anaerobic digesters) biological treatment units to ensure that an adequate, active, and appropriate population of bacteria is present in each treatment unit. It is a hands-on guide to understanding the biology and biological conditions that occur at each treatment unit.
Avoiding unnecessary technical jargon and chemical equations, Wastewater Bacteria, the fifth book in the Wastewater Microbiology Series, explores and explains:
* Bacteria and the wastewater environment
* Enzymes and sludge production
* Nitrogen, phosphorus, and sulfur bacteria
* Floc formation and filamentous organisms
* Nitrification and denitrification
* Sulfate reduction, fermentation, and methane production
* Toxicity
* Foam and malodor production
The goal of Wastewater Bacteria is to enable plant operators to achieve the twofold basic objectives of wastewater treatment-to degrade organic wastes to a level where a significant, dissolved oxygen demand is not exerted upon receiving waters and to remove nutrients to levels where photosynthetic organisms in receiving waters are limited in their growth. This straightforward manual equips plant technicians to meet these objectives with essential information to understand the biological processes and organisms involved in wastewater treatment.

Volume II of the definitive series on the microbiology of wastewater treatment

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

The Wastewater Microbiology Series tackles the critical topics of cost-effective operation, permit compliance, process control, and troubleshooting through a microbiological perspective. 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.

The practical guide on what to do right when biological influences cause a sequencing batch reactor to go wrong

This richly illustrated, straightforward guide carries forth the legacy established by previous editions in the "Wiley Wastewater Microbiology" series by focusing attention on the mixed gathering of organisms cohabitating within a sequencing batching reactor (SBR), and the key roles their biology plays in this wastewater processing tank's function. With a clear, user-friendly presentation of complex subject matter, "Troubleshooting the Sequence Batch Reactor" first teaches plant operators how to differentiate the positive and expected organismal dynamics present in optimal SBR performance from the negative and damaging ones that create unhealthy sludge, and a stoppage in SBR operations. Next, Troubleshooting the Sequence Batch Reactor delivers all the tools necessary to get an SBR back on track and running safely. In this book you'll get:

Short-course situations tested by the author for the past fifteen years

Accessible material aimed at operators instead of design and consulting engineers

Essential information for understanding biological conditions such as aerobic, anoxic, and anaerobic/fermentative at the treatment process

Examination of the properties of protozoa (single-celled) and metazoa (multi-celled) organisms, and their significance in wastewater treatment

Devoid of overwhelming scientific jargon, chemical equations, and kinetics, this book simplifies details to provide quick instruction for plant operators on how to make more informed day-to-day process control decisions, how to troubleshoot confidently when SBR conditions become compromised, and how to act decisively when the problem is ultimately identified.

A practical, hands-on guide to using the microscope to analyze activated sludge in wastewater treatment
The microscope provides the wastewater treatment plant operator with a special tool for process control and troubleshooting of the activated sludge process. The operator can "read" the organisms and use them as "bioindicators" to determine if operational conditions are acceptable or not acceptable. Written for plant operators and technicians and avoiding unnecessary technical jargon, "Microscopic Examination of the Activated Sludge Process explores" and explains:

• Microscopy, including microscopic measurements and techniques
  
• Directions for preparing and applying microbiological stains and immobilizing agents and techniques for preparing wet mounts and smears
  
• How to identify various types of organisms, including: floc particles and foam; protozoa; rotifers; worms and worm-like organisms; crustaceans; filamentous organisms; and algae and fungi
  
• The collection, evaluation, and presentation of observations
  This straightforward guide includes figures, tables, worksheets, photomicrographs, and black-and-white drawings of many living, microscopic components of the activated sludge process. It equips plant operators and technicians to monitor, regulate, and troubleshoot the treatment processes and also serves as a valuable resource for research professionals and sanitary engineers in wastewater treatment.

A practical guide to wastewater pathogens
The fourth volume in Wiley's Wastewater Microbiology series, Wastewater Pathogens offers wastewater personnel a practical guide that is free of overly technical jargon. Designed especially for operators, the text provides straight facts on the biology of treatment as well as appropriate protective measures. Coverage includes:
* An overview of relevant history, hazards, and organisms
* Viruses, bacteria, and fungi
* Protozoa and helminthes
* Ectoparasites and rodents
* Aerosols, foam, and sludge
* Disease transmission and the body's defenses
* Removal, inactivation, and destruction of pathogens
* Hygiene measures, protective equipment, and immunizations

"Biology of the Wetlands" discusses the characteristics and significance of the single- and multi-celled organisms found in wastewater treatment plants and the conditions that support their growth. This knowledge helps operators to make more informed process control decisions. Unlike typical texts written for design and consulting engineers and full of technical jargon, equations, and kinetics, this guide provides the necessary information in a format that is accessible and actionable for plant operators and technicians and helpful to others involved in wastewater treatment.

A practical guide to wastewater treatment for plant technicians and operators

This book, the first in a series on the microbiology of wastewater treatment, comprises the critical topics of cost-effective operation, permit compliance, process control, and troubleshooting in wastewater treatment plants. Avoiding the technical jargon, chemical equations, and kinetics that typically accompany such texts, Nitrification and Denitrification in the Activated Sludge Process directly addresses plant operators and technicians, providing necessary information for understanding the microbiology and biological conditions that occur in the treatment process.

Of special interest to wastewater treatment plant operators are the bacteria that degrade nitrogenous wastes–the nitrifying bacteria–and the bacteria that degrade carbonaceous wastes–the cBOD-removing bacteria. Both groups of bacteria need to be routinely monitored and operational conditions favorably adjusted to ensure desired nitrification. Each chapter in this groundbreaking study offers a better understanding of the importance of nitrification and denitrification and the bacteria involved in these crucial processes. Chapters include:

• Organotrophs
• The Wastewater Nitrogen Cycle
• Nitrite Ion Accumulation
• Dissolved Oxygen
• Denitrifying Bacteria
• Gaseous End Products
• Free Molecular Oxygen
• The Occurrence of Denitrification

Nitrification and Denitrification in the Activated Sludge Process is an ideal companion for operators and technicians of wastewater treatment plants as they study to receive certification in their field, now required in more than thirty states. Sanitary engineers, chemists, microbiologists, and educators will benefit from this comprehensive guide.