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Journal of Advances in Environmental Health Research، جلد ۳، شماره ۲، صفحات ۱۳۰-۰
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عنوان انگلیسی Optimization of ammonia removal in an integrated fix-film activated sludge using response surface methodology
چکیده انگلیسی مقاله In this work, removal of ammonia from synthetic wastewater using integrated fixed-film activated sludge (IFAS) process was optimized using response surface methodology (RSM). The main operating parameters such as ammonia concentration rate (ALR) and hydraulic retention time (HRT) were optimized to acquire the maximum removal efficiency. The linear, 2FI, quadratic, mean, and cubic models were utilized for modeling of the parameters. Residual nitrate and nitrite were determined as the byproducts. The results showed that the actual data fitted well with the predicted results. The maximum ammonia removal achieved using mean, linear, 2FI, quadratic, and cubic models were 59.88, 79.05, 79.32, 77.11, and 78.65%, respectively. Nitrate and nitrite were determined in ammonia concentrations of higher than 100 mg/l. The obtained results showed that RSM is a suitable technique for the optimization of conditions for the maximum removal of ammonia.
کلیدواژه‌های انگلیسی مقاله Ammonia, Wastewater, Optimization, Biofilms, Optimization
نویسندگان مقاله هوشیار حسینی | hoshyar hossini
department of environmental health, school of medical sciences, tarbiat modares university, tehran, iran

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

عباس رضایی | abbas rezaee
department of environmental health, school of medical sciences, tarbiat modares university, tehran, iran

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

رضا براتی roshvanlo | reza barati roshvanlo
department of environmental health, school of medical sciences, tarbiat modares university, tehran, iran

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

نشانی اینترنتی http://jaehr.muk.ac.ir/index.php/jaehr/article/view/186
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article(s)
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