Anaerobic treatment of domestic sewage in modified septic tanks at low temperature

被引：18

作者：

Chen, Zhiqiang ^{[1
]}

Wen, Qinxue ^{[1
]}

Guan, Huabin ^{[1
]}

Bakke, Rune ^{[2
]}

Ren, Nanqi ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

[2] Telemark Univ Coll, Fac Technol, N-3901 Porsgrunn, Norway

来源：

ENVIRONMENTAL TECHNOLOGY | 2014年 / 35卷 / 17期

基金：

美国国家科学基金会;

关键词：

low temperature; carrier; anaerobic baffled reactor; domestic sewage; septic tank; WASTE-WATER TREATMENT; BAFFLED REACTOR; TREATMENT SYSTEMS; BLACK WATER;

D O I：

10.1080/09593330.2014.894580

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Three laboratory-scale septic tanks, an anaerobic baffled reactor (ABR)-septic tank (R1), a Yuhuan drawing three-dimensional-carrier-septic tank (R2) and a conventional septic tank (R3), were operated in parallel over half a year under hydraulic retention times (HRTs) of 36, 24 and 12 h, with a sewage temperature of 16 degrees C. The removal efficiencies of total chemical oxygen demand (CODtot) achieved in R1 and R2 increased by 14%, 21% and 12% and 18%, 3% and 16%, respectively, under three different HRTs, as compared to those in R3. The total nitrogen and phosphorus removal efficiencies were negligible. R1 sludges had a higher specific methane production rate as compared to that of R2 and R3 sludges. The results indicated that the two modified septic tanks can improve the performance in terms of COD and total solids removal, both were suitable technologies for domestic sewage (pre) treatment at low temperature in northern China.

引用

页码：2123 / 2131

页数：9

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