کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10386125 | 882866 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Integration of a coagulation step in a cometabolism sequencing batch reactor for the treatment of DSD acid wastewater from a reduction process
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
4,4-Diaminostilbene-2,2â²disulfonic acid (DSD acid) wastewater from a reduction process is characterized by slow biodegradation. With a coagulation step as pretreatment, the contaminant can be efficiently removed by a cometabolism sequencing batch reactor (SBR) in the presence of glucose. Since a part of COD from DSD acid wastewater was colloidal and refractory, coagulation was applied as the pretreatment process, which demonstrated that the optimal concentration of aluminum sulfate was 90Â mg/L. In the biological section, reduction efficiencies for COD, chromaticity and NH4+-N were 84%, 93% and 92%, respectively, when working with 10Â h and pH 7.0. In addition, dehydrogenase activity was proven to be a good parameter which can characterize the microorganism activity in this study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 250, Issue 1, 1 January 2010, Pages 167-171
Journal: Desalination - Volume 250, Issue 1, 1 January 2010, Pages 167-171
نویسندگان
Yuanyuan Yan, Leiyu Feng, Liping Sun, Qi Zhou,