On-site treatment of source separated domestic wastewater employing anaerobic package system

被引：19
|
作者：
Sharma, Meena Kumari [1 ]
Tyagi, Vinay Kumar [2 ]
Saini, Gita [1 ]
Kazmi, Absar Ahmad [1 ]
机构：
[1] Indian Inst Technol Roorkee, Dept Civil Engn, Roorkee 247667, Uttar Pradesh, India
[2] Energy & Resources Inst Univ, Dept Nat Resources, New Delhi 110070, India
来源：
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2016年 / 4卷 / 01期
关键词：
Black water; Developing regions; On-site treatment; Package system; Sludge characteristics;
D O I：
10.1016/j.jece.2016.01.024
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
On-site treatment of black water generated at a residential school was investigated by employing an upgraded two-stage package system: a modified septic tank followed by an anaerobic filter. The findings revealed that the average removal efficiency for CODtot, CODss, BOD and TSS were 72.6, 90.2, 78.4 and 83.2%, respectively. Monthly septage characterization revealed a declining trend in VSS/TSS ratio, which indicated the progressive hydrolysis as well as stabilization of the sludge. The interrelationship between physico-chemical and microbial parameters revealed a linear relationship between the data with a good coefficient of correlation. High methanogenic activity of 0.386 g CH4/g VSS. D was observed within the developed sludge. Thus the studied package system can be a suitable alternative to the conventional septic tank for on-site treatment of black water in the rural areas of developing regions. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1209 / 1216
页数：8
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