文章基本信息

标题：Performance Evaluation of IFAS System Using Honeycomb PVC Media
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作者：Sara A. Rashed ; Mona M. Galal ; Khaled Zaher 等
期刊名称：Civil and Environmental Research
印刷版ISSN：2225-0514
电子版ISSN：2225-0514
出版年度：2019
卷号：11
期号：2
页码：52-60
DOI：10.7176/CER/11-2-06
出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：Recently, Egypt is facing serious problems caused by the deterioration of effluent quality of many wastewater treatment plants (WWTP) especially in rural areas. Unexpected rapid increase in population associated with the increase of organic loading are the main factors causing the failure in operation for many WWTPs. Absence of periodic maintenance and lack of operators’ experience in these rural areas make the situation worse. Many WWTP are recently under rehabilitation and upgrading for the above reasons, however decision makers are facing a real challenge due to the space-limit in many cases. The integrated fixed film activated sludge (IFAS) system has recently proved to be an effective choice to expand the WWTP capacity for growing communities, enhance nitrogen removal and comply with more stringent effluent limits with small footprint. In this research, an IFAS pilot-scale reactor is constructed to optimize its application in upgrading conventional activated sludge (CAS) plants. The effect of carrier position, hydraulic retention time (HRT) and organic loading rate (OLR) on the biological treatment efficiency and nutrient removal compared to CAS process are studied. IFAS configurations with no media, vertical position and cross flow media position are tested with 4, 8 and 12 hours retention times and organic loading rates of 0.84 and 1.44 Kg COD/m 3 .day.
关键词：Integrated fixed film IFAS; biological nitrogen removal; honeycomb PVC media