Performance of a pilot scale up-flow septic tank for on-site decentralized treatment of residential wastewater

被引：39
作者：
Moussavi, Gholamreza [1 ]
Kazembeigi, Frarough [2 ]
Farzadkia, Mehdi [3 ]
机构：
[1] Tarbiat Modares Univ, Fac Med Sci, Dept Environm Hlth, Tehran, Iran
[2] Ilam Univ Med Sci, Fac Hlth, Dept Environm Hlth, Ilam, Iran
[3] Iran Univ Med Sci, Fac Hlth, Dept Environm Hlth, Tehran, Iran
来源：
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2010年 / 88卷 / 01期
关键词：
Anaerobic processes; Residential wastewater; On-site treatment; Septic tank; ANAEROBIC TREATMENT; BLACK WATER; DOMESTIC SEWAGE; UASB REACTOR; LOW-TEMPERATURE; TECHNOLOGIES; MANAGEMENT; DIGESTION; SYSTEM;
D O I：
10.1016/j.psep.2009.10.001
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The aim of this research was to study the on-site anaerobic treatment of a medium-strength residential wastewater in a pilot-scale up-flow septic tank (UST). The effects of three different hydraulic retention times (HRTs) of 24, 12 and 6 h on the UST performance were investigated. The UST removed 85, 77, and 86% of biochemical oxygen demand (BODs), chemical oxygen demand (COD) and total suspended solids (TSS), respectively, at steady state operation and with a 24 h HRT. Decreasing the HRT to 12 and then 6 h resulted in deteriorated effluent quality and significantly reduced reactor performance. The sludge showed a high specific methanogenic activity (SMA) of 15.2 mL CH4 g(-1) VSS d(-1) with raw wastewater substrate. The solids accumulated in the tank by the end of the experiment had a VSS/TSS of 0.57, demonstrating significant stabilization. overall, the LIST is concluded to be a technically and economically promising alternative to conventional septic tanks for the on-site decentralized treatment of residential wastewater, particularly in the rural communities of developing countries. (C) 2009 The Institution of Chemical Engineers. Published by Elsevier B.V All rights reserved.
引用
收藏
页码：47 / 52
页数：6
相关论文
共 25 条
[1]   Start-up of an UASB-septic tank for community on-site treatment of strong domestic sewage [J].
Al-Shayah, Mohammad ;
Mahmoud, Nidal .
BIORESOURCE TECHNOLOGY, 2008, 99 (16) :7758-7766
[2]  
APHA (AMERICAN PUBLIC HEALTH ASSOCIATION), 1995, Standard Methods for the Examination of Water and Waste Water
[3]   ANAEROBIC TREATMENT OF DOMESTIC WASTE-WATER IN SMALL-SCALE UASB REACTORS [J].
BOGTE, JJ ;
BREURE, AM ;
VANANDEL, JG ;
LETTINGA, G .
WATER SCIENCE AND TECHNOLOGY, 1993, 27 (09) :75-82
[4]   The UASB reactor as an alternative for the septic tank for on-site sewage treatment [J].
Coelho, ALSS ;
do Nascimento, MBH ;
Cavalcanti, PFF ;
van Haandel, AC .
WATER SCIENCE AND TECHNOLOGY, 2003, 48 (11-12) :221-226
[5]  
Crites R.W., 1998, SMALL DECENTRALIZED
[6]   Anaerobic treatment of domestic sewage at low temperature [J].
Elmitwalli, T ;
Zeeman, G ;
Lettinga, G .
WATER SCIENCE AND TECHNOLOGY, 2001, 44 (04) :33-40
[7]   Decentralised treatment of concentrated sewage at low temperature in a two-step anaerobic system: two upflow-hybrid septic tanks [J].
Elmitwalli, TA ;
Sayed, S ;
Groendijk, L ;
van Lier, J ;
Zeeman, G ;
Lettinga, G .
WATER SCIENCE AND TECHNOLOGY, 2003, 48 (06) :219-226
[8]   Treatment of strong domestic sewage in a 96 m3 UASB reactor operated at ambient temperatures:: two-stage versus single-stage reactor [J].
Halalsheh, M ;
Sawajneh, Z ;
Zu'bi, M ;
Zeeman, G ;
Lier, J ;
Fayyad, M ;
Lettinga, G .
BIORESOURCE TECHNOLOGY, 2005, 96 (05) :577-585
[9]   Anaerobic digestion technologies for closing the domestic water, carbon and nutrient cycles [J].
Hammes, F ;
Kalogo, Y ;
Verstraete, W .
WATER SCIENCE AND TECHNOLOGY, 2000, 41 (03) :203-211
[10]   Performance of UASB septic tank for treatment of concentrated black water within DESAR concept [J].
Kujawa-Roeleveld, K ;
Fernandes, T ;
Wiryawan, Y ;
Tawfik, A ;
Visser, W ;
Zeeman, G .
WATER SCIENCE AND TECHNOLOGY, 2005, 52 (1-2) :307-313
123