Sewage and the Bacterial Purification of Sewage
نویسندگان
چکیده
منابع مشابه
Sewage treatment by controlled eutrophication: bacterial study.
Several groups of bacteria were isolated and identified in an evaluation of the microbiological properties of a sewage treatment system involving the process of controlled eutrophication in a marine setting (J. G. Songer, N. M. Trieff, R. F. Smith, and D. Grajcer, 1974). Fecal coliforms, enterococci, Salmonellae, Shigellae, Vibrio parahaemolyticus, and Vibrio alginolyticus were studied at three...
متن کاملProtozoal Development and Natural Purification of Flowing Sewage
A large volume of literature has accumulated ?n the "self-purification" of sewage-contaminated streams and rivers, and the process of purification Under these conditions has been reported to be one to factors such as the turbulence and speed of flow of the polluted waters, the depth and type of the bed of the watercourse, the extent of dilutlQn, sedimentation, surface area, sunlight, temperatur...
متن کاملComparison of Material Flows in Sewage-free and Sewage-generating Flue-Gas Purification Systems of Municipal Waste Incineration Plants
During incineration of wastes in waste incineration plants, polluted flue gases are generated which have to be subjected to flue gas purification. Although the legal requirements are nearly unambiguous, the question of whether wet flue gas purification is to be performed in a sewage-free or sewage-generating manner is discussed controversially by experts in the Federal Republic of Germany. As a...
متن کاملBacterial community composition and function in sewage treatment systems.
The application of modern molecular techniques has led to the identification, in situ quantification, and partial ecophysiological characterisation of bacteria responsible for bulking and foaming or for nutrient removal in sewage treatment systems. Unexpectedly, previously unrecognised, yet uncultured bacteria were demonstrated to catalyse nitrogen and phosphorous removal in activated-sludge an...
متن کاملPneumoproteins in sewage workers exposed to sewage dust
PURPOSE The association between exposure to bacteria and endotoxins in sewage dust and the serum concentrations of pneumoproteins in sewage treatment plant workers were studied. METHODS Forty-four workers from eight sewage treatment plants and 38 reference workers participated in the study. Microbial aerosol was collected by personal inhalable samplers. The concentrations of bacteria and endo...
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ژورنال
عنوان ژورنال: Science
سال: 1902
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.16.397.218-d