Wastewater BacteriaWiley, 14 apr 2006 - 255 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:
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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... nitrifying bacteria Presence of soluble cBOD produced through fermentation that inhibit nitrifying bacteria Short hydraulic retention time The presence of nitrite and nitrate in the sewer system ... nitrifying bacteria 80 NITRIFYING BACTERIA.
... nitrifying bacteria are strict aerobes , they live in the top 1-2 inches of soil . Due to the relatively small quantity of energy obtained from the oxidation of ionized ammonia and nitrite , nitrifying bacteria reproduce very slowly ...
... nitrifying bacte- ria ( Table 19.8 ) and methane - forming bacteria ( Table 19.9 ) . TOXICITY AND NITRIFYING BACTERIA Because the nitrifying bacteria , Nitrosomonas , Nitrosospira , Nitrobacter , and Nitro- spira , obtain very little ...