摘要
利用生态纤维填料对南方某城市污水厂的活性污泥工艺进行了生产性改造试验,并着重考察了改造工艺中水解池的启动与运行状况。试验结果表明,水解池能有效地去除废水中的污染物质,当进水COD平均浓度为500mg/L时,COD、BOD5、SS的平均去除率均在50%左右。BOD5/COD比值从0.38提高到0.45;水解出水CODsol比例从进水的0.31提高至0.60,污水中的有机形态及性质有所改动,有利于后续的好氧处理。此外,水解池对于进水浓度变化而引起的冲击负荷有很好的抵抗能力,水解池COD负荷从2.34kg/(m3?d)变化到9.84kg/(m3?d)时,出水COD仅从164mg/L变化到217mg/L,表明污水浓度的变化对水解段的去除效果不产生显著的影响。
The operation of hydrolyze pool showed that the hydrolyze pool could resist unbalance burthen very well, which caused by changed input sewage concentration. When the average input COD concentration was 500 mg/L, the COD, BODs, SS remove efficiency was kept on 50 %. After the sewage deposed by hydrolyze pool, the ratio of BODJCOD increased from 0.38 to 0.45, the deliquescent CODsol ratio increased from 0.31 to 0.60, the organic conformation and organic character changed, and this change could be conduce to latter aerobic-operation. Furthermore, when COD burden increased from 2.34 kg/（m3.d） to 9.84 kg/（m3.d）,output COD varies from 164 mg/L to 217 mg/L, which means that the changes ofwastewater concentration affects little on wastewater remove efficiency.
出处
《广东化工》
CAS
2009年第9期122-124,共3页
Guangdong Chemical Industry
关键词
纤维填料
水解
城市污水
生产试验
fabric filler
hydrolysis
municipalwastewater
pilot experiment
