Ambient temperature treatment of low strength wastewater using anaerobic sequencing batch reactor
Ambient temperature treatment of low strength wastewater using anaerobic sequencing batch reactor
复制标题
厌氧序批式反应器常温处理低浓度废水
DOI：
10.1023/a:1018390515245
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发表时间：
1997
影响因子：
2.7
通讯作者：
R. R. Dague
中科院分区：
文献类型：
--
作者：
U. Ndon;R. R. Dague
采用四个厌氧序批式反应器（ASBR）在35、25、20和15 ℃下处理化学需氧量（COD）浓度为1000、800、600和400 mg/l的低浓度废水。反应器1在48小时的水力停留时间（HRT）下操作，反应器2在24小时HRT下操作，反应器3在16小时HRT下操作，反应器4在12小时HRT下操作。除15 ℃处理1000和800 mg/lCOD废水HRT为12 h和1000 mg/lCOD废水HRT为16 h时生物固体损失过大外，其它各运行条件下可溶性COD的去除率在80 ~ 99%之间。ASBR工艺是处理低浓度废水的一种有效工艺，通常采用好氧处理，污泥产量大，能耗高。
Low strength wastewater having chemical oxygen demands (COD) concentrations of 1000, 800, 600 and 400mg/l were treated at 35, 25, 20 and 15¡C using four anaerobic sequencing batch reactors (ASBRs). Reactor 1 was operated at hydraulic retention time (HRT) of 48h, reactor 2 at 24h HRT, reactor 3 at 16h HRT and reactor 4 at 12h HRT. 80 to 99% soluble COD was removed at the various operational conditions, except during 15¡C treatment of 1000 and 800mg/l COD wastewater at 12h HRT and 1000mg/l COD wastewater at 16h HRT, where excessive loss of biological solids occurred. The ASBR process can be an effective process for the treatment of low concentrated wastewaters which are usually treated aerobically with large amount of sludge production and higher energy expenditures.