Nitrogen Removal in Aerobic and Anaerobic Cycles
Publish place: 3rd Conference of Separation Science and Engineering
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CSSE03_041
تاریخ نمایه سازی: 22 خرداد 1391
Abstract:
Exposing wastewater containing ammonia in aerobic and anaerobic environments and in the presence of microorganisms can strip the ammonia from wastewater biologically. In this study, by using an aerobic and anaerobic conversion steps, the efficiency of separating nitrogen from municipal wastewater, which consists of 20% slaughterhouse wastewater, was increased considerably. In the aerobic step, the ammonia was converted to nitrite and nitrate in the presence of microorganisms (nitrification). The obtained nitrite and nitrate were converted to nitrogen in anaerobic environment (denitrification) and released to atmosphere. Nitrification was performed by a trickling filter. The obtained efficiency by using plastic media is about 83%. Denitrification was carried out in a UASB reactor which yielded an efficiency of about 99%.
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Authors
Seyed Mohammad Javad Azmoon۱
Young Researcher Club, Mahshahr Branch, Mahshahr, Iran
Soheila Gholamian۲
Department of Chemistry, Science and Research Branch, Islamic Azad University, Khouzestan, Iran
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