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Effects of Operation Conditions on Advanced COD Removal in Activated Sludge Systems

التفاصيل البيبلوغرافية
العنوان: Effects of Operation Conditions on Advanced COD Removal in Activated Sludge Systems
المؤلفون: Peter A. Wilderer, Korneliusz Miksch, J. Franta, V. Sykora
المصدر: Water Science and Technology. 29:189-192
بيانات النشر: IWA Publishing, 1994.
سنة النشر: 1994
مصطلحات موضوعية: Environmental Engineering, Waste management, biology, Sequencing batch reactor, Pulp and paper industry, Enzyme assay, Activated sludge, Wastewater, biology.protein, Sewage treatment, Aeration, Respiration rate, Effluent, Water Science and Technology
الوصف: Sequencing Batch Reactor (SBR) experiments have been conducted to study factors affecting composition and concentration of residual organics in the effluent of biological wastewater treatment plants. Wastewater discharged by a papermill was used as a reference. First results indicate that sludge age plays an important role when industrial wastewaters are to be treated. Increase of the sludge age led to elimination of key halogenated compounds in the effluent, although the effluent COD often remained hardly changed. Of importance is also the duration of the starvation period during each cycle. To maintain high substrate removal efficiency it is necessary to extend the duration of the aeration phase until the enzyme activity has been reduced to the background level. It was observed that the enzyme activity remains high even when the respiration rate had reached the level of endogenous respiration. High treatment efficiency can only be maintained if the bacteria are supplied with feed, and then exposed to starvation conditions on a periodic basis.
تدمد: 1996-9732
0273-1223
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::c60e566fe2dcc96a05ea35983aa30204
https://doi.org/10.2166/wst.1994.0341
حقوق: OPEN
رقم الأكسشن: edsair.doi...........c60e566fe2dcc96a05ea35983aa30204
قاعدة البيانات: OpenAIRE
الوصف
تدمد:19969732
02731223