Wastewater Bacteria

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John Wiley & Sons, 20 apr 2006 - 272 pagine
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.

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Sommario

PART II ENZYMES AND BACTERIAL GROWTH
53
PART III NITROGEN PHOSPHORUS AND SULFUR BACTERIA
75
PART IV FLOC FORMATION
133
PART V FERMENTATION AND METHANE PRODUCTION
153
PART VI TOXICITY
165
PART VII FOAM AND MALODOR PRODUCTION
211
REFERENCES
235
ABBREVIATIONS AND ACRONYMS
239
CHEMICAL COMPOUNDS AND ELEMENTS
241
GLOSSARY
245
INDEX
251
Copyright

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Pagina 246 - ... from an area of high concentration to an area of low concentration.
Pagina 124 - Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association...
Pagina 236 - White, D. 2000. The Physiology and Biochemistry of Prokaryotes. Oxford University Press, New York.
Pagina 234 - Marais. 1980. A general model for the activated sludge process. Prog. Water Tech.
Pagina 166 - The sludge produced in individual on-site wastewater disposal systems such as septic tanks and cesspools. septic septico (1) Anaerobic.
Pagina 56 - If an enzyme is capable of acting on more than one substrate, it usually acts on substrates with the same functional group [eg, carboxyl ( — COOH) or hydroxyl ( — OH)], or the same kind of chemical bond (Table 7.1).
Pagina 26 - Bacteria have an optimum pH at which they grow best. For most bacteria the optimum...
Pagina 33 - Bacteria that obtain their electrons or hydrogen atoms (each hydrogen atom has one electron) from organic compounds are organotrophs.
Pagina 234 - Paillard. 1990. Odor nuisances created by sludge treatment: problems and solutions. Water Sci. Tech.
Pagina 25 - Other substances diffuse across the cell membrane without an expenditure of cellular energy, but these substances require the assistance of a carrier molecule. The carrier molecule is a protein and is located in the cell membrane.

Informazioni sull'autore (2006)

Michael H. Gerardi holds an MS in biology from James Madison University and has authored more than ninety technical publications. He is responsible for the development and presentation of wastewater biology courses at The Pennsylvania State University and is an operational specialist with Cromaglass Corporation. Mr. Gerardi also is a wastewater biologist for Water Pollution Biology, where he provides troubleshooting of wastewater treatment plants and operator training. He can be reached at www.wastewaterbiology.com.

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