摘要
为实现小城镇污水高效、节能、低耗处理,建立混凝滤布过滤-缺氧滤池/生物滴滤污水处理组合工艺.在优选实验装置及材料的基础上,探究各部分工艺最优运行参数.在研究系统对常规污染物去除的同时,重点分析生物滤池启动过程对氨氮和总氮的去除能力.结果表明:当粉煤灰基混凝剂投加量为1 mL/L时,混凝-滤布过滤对CODcr的去除率可达54%,对TP的去除率达81%,且具有工作周期长、耗能少等特点;生物滤池在水力负荷为15 L/d、硝化液回流比为150%时运行效果最好,可保证系统出水氨氮、CODcr、TP、TN均达到GB18918—2002的一级A标准.
In order to treat the small town sewage wastewater with high efficiency,energy saving and low power consumption,a combined coagulation cloth media filtration-anaerobic filter /trickling filter system was established at experimental condition. Via the experimental optimization of equipments and materials,the optimal operation parameters of each part,especially the nitrogen removal ability during the start-up of the trickling filter had been investigated. Experimental results showed that at 1 mL /L fly ash coagulant dosage,54% removal of CODcrand 81% of TP would be removed by the combined system. The optimal hydraulic loading was 15 L /d and the optimal reflux ratio was 150%,which would guarantee the effluent ammonia,CODcr,TP reach A standard.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2014年第8期21-26,共6页
Journal of Harbin Institute of Technology
基金
国家创新研究群体科学基金资助项目(51121062)
黑龙江省博士后基金资助项目(AUGA411002401)
关键词
小城镇
污水
混凝-滤布过滤
生物滴滤池
脱氮
small town
domestic sewage
coagulation-cloth media filtration
trickling filter
nitrification
