Identification of filamentous microorganisms and factors influencing on them in activated sludge.
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15 صفحه اولThermophilic Aerobic Digestion of Activated Sludge; Reduction of Solids and Pathogenic Microorganisms
In the temperature range of 10 to 80 ºC and in a batch digester, a typical activated sludge was digested aerobically. Reaction rate constants were determined by measuring the amounts of volatiles removed from the suspended solids at different time intervals during the process. The maximum value of the reaction rate constant (0.45 d-1) occurred in the temperature...
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A plating medium was developed to isolate N-phosphonomethylglycine (glyphosate)-degrading microorganisms, with glyphosate as the sole phosphorus source. Two industrial biosystems treating glyphosate wastes contained elevated microbial counts on the medium. One purified isolate metabolized glyphosate to aminomethylphosphonic acid, mineralizing this accumulating intermediate during log growth. Th...
متن کاملEcophysiology of the filamentous Alphaproteobacterium Meganema perideroedes in activated sludge.
A comprehensive study of the ecophysiology of the filamentous Meganema perideroedes affiliated to the Alphaproteobacteria, possessing a "Nostocoida limicola Type II" filamentous morphology was conducted. This morphotype often causes serious bulking problems in activated sludge wastewater treatment plants, and hardly anything is known about its physiology. The study was carried out by applying a...
متن کاملReliability of Morphological Approach for Bulking Filamentous Bacteria Identification in Activated Sludge Plants
Activated sludge process is the most commonly applied technology for the biological treatment of wastewater. However, operational failures and deterioration of treatment efficiency due to extensive and uncontrolled growth of filamentous bacteria have been reported worldwide as common problems of this method. Over the years, various methods have been developed and applied for the identification ...
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ژورنال
عنوان ژورنال: Japan journal of water pollution research
سال: 1986
ISSN: 0387-2025
DOI: 10.2965/jswe1978.9.87