Effective carbon and nutrient treatment solutions for mixed domestic-industrial wastewater in India

被引：3
作者：
Saha, S. [1 ]
Badhe, N. [1 ]
Seuntjens, D. [2 ]
Vlaeminck, S. E. [2 ,3 ]
Biswas, R. [1 ]
Nandy, T. [1 ]
机构：
[1] CSIR Natl Environm Engn Res Inst, Wastewater Technol Div, Nagpur 440020, Maharashtra, India
[2] Univ Ghent, Lab Microbial Ecol & Technol, B-9000 Ghent, Belgium
[3] Univ Antwerp, Dept Biosci Engn, Res Grp Sustainable Energy Air & Water Technol, B-2020 Antwerp, Belgium
来源：
WATER SCIENCE AND TECHNOLOGY | 2015年 / 72卷 / 04期
关键词：
bio-augmentation; constructed wetland; OLAND; sewage; UASB; UASB REACTOR EFFLUENT; CONSTRUCTED WETLANDS; ANAEROBIC TREATMENT; POSTTREATMENT; SCALE; FLOW; PERFORMANCE; POLLUTION; SURFACE; SEWAGE;
D O I：
10.2166/wst.2015.254
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The present study evaluates effectiveness of up-flow anaerobic sludge blanket (UASB) reactor followed by two post-anaerobic treatment options, namely free-surface, up-flow constructed wetland (FUP-CW) and oxygen-limited anaerobic nitrification/denitrification (OLAND) processes in treating sewage from the peri-urban areas in India receiving illegal industrial infiltrations. The UASB studies yielded robust results towards fluctuating strength of sewage and consistently removed 87-98% chemical oxygen demand (COD) at a hydraulic retention time of 1.5-2 d. The FUP-CW removed 68.5 +/- 13% COD, 68 +/- 3% NH4+-N, 38 +/- 5% PO43--P, 97.6 +/- 5% suspended particles and 97 +/- 13% fecal coliforms. Nutrient removal was found to be limiting in FUP-CW, especially in winter. Nitrogen removal in the OLAND process were 100 times higher than the FUP-CW process. Results show that UASB followed by FUP-CW can be an excellent, decentralized sewage treatment option, except during winter when nutrient removal is limited in FUP-CW. Hence, the study proposes bio-augmentation of FUP-CW with OLAND biomass for overall improvement in the performance of UASB followed by FUP-CW process.
引用
收藏
页码：651 / 657
页数：7
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