摘要：
以电镀废水尾水为目标废水, 联合生活污水处理, 以提升目标废水的可生化性, 并经过增设填料的改良型倒置A2/O工艺处理, 研究了工艺对电镀废水尾水的脱氮处理效能。结果表明:在电镀废水尾水所占的体积百分数为30%时, 工艺运行效益较好;在DO为1.90~2.10 mg/L, 回流比在150%左右, 系统对NH4+-N、TN、COD的去除率分别达到93%、80%、85%;当有足够的易降解有机碳源, 即提高COD/TN时可使TN去除率≥84%。
关键词:
电镀废水尾水,
生化性,
倒置A2/O
Abstract:
Taking the tail water of electroplating wastewater as the target, and combining with the treatment of do- mestic sewage, the biodegradability of the target wastewater can be up-graded. The nitrogen removing treatment capa- city of the tail water of electroplating wastewater has been studied by establishing in addition the improved inverted A2/O process for fillers. The results show that when the volume percentage of tail water of electroplating wastewater is 30%, the running efficiency of this process is better. When DO is 1.90-2.10 mg/L and the ratio of reflux ratio is about 150%, the removing rates of NH4+-N, COD, and TN are 93%, 80%, and 85%, respectively. When the degradable organic carbon source is enough, ≥84% of TN removing rate can be up-graded by the up-grading of COD/TN.
Key words:
tail water of electroplating wastewater,
biodegradabability,
inverted A2/O process
中图分类号:
古寒冰, 吴阳, 徐乐中. 改良型倒置A2/O对电镀废水尾水脱氮的应用研究[J]. 工业水处理, 2015, 35(7): 81-84.
Gu Hanbing, Wu Yang, Xu Lezhong. Application research on nitrogen removing treatment for the tail water of electroplating wastewater by modified inverted A2/O process[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(7): 81-84.