Performance of Wastewater treatment Plant in Amol Industrial Park
Publish place: 5th International Congress on Chemical Engineering
Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC05_087
تاریخ نمایه سازی: 7 بهمن 1386
Abstract:
Amol's industrial wastewater treatment plant was evaluated over a period of eight months (July 2005 and February 2006). The operating conditions were optimized for a period of one month, to obtain a suitable efficiency. The major problems associated with the treatment plant were chemical shock (high acidic influent), bulking and rising of sludge, low F/M and MLSS/ MLVSS ratios, inadequate mixing in equalization tank, inappropriate C/N/P ratio in the anaerobic and aerobic tanks. Based on diagnostic condition, fresh manure was added to the anaerobic digestion tank for the revival of anaerobic microbial consortium and then a 15% increase in removal efficiency was obtained in the anaerobic tank. Addition of urea and phosphate into the aerobic tank improved total removal efficiency of only 5%. The effluent COD concentration was decreased by 50%. Activated sludge and the sludge volume indices were improved by 15 and 27%, respectively.
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Authors
Ghasem Najafpour
Biochemical Engineering and Biotechnology, Faculty of Chemical Eng., Noshirvani University of Technology, Babol, Iran
Bahar Hosseini
Environmental Engineering, Faculty of Civil Eng., Noshirvani University of Technology, Babol, Iran
Maedeh Sadeghpoor
Environmental Engineering, Faculty of Civil Eng., Noshirvani University of Technology, Babol, Iran
Mohammad Norouzi
University of Peyame-Nour, Sari, Iran
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