生物转盘同步去除化学需氧量和氮的实验研究  

COD and nitrogen removal with rotating biological contactor

作　　者：李芳[1,2] 崔红梅[1,2] 吕炳南[3] 

机构地区：[1]东北石油大学土木建筑工程学院给水排水工程专业,黑龙江大庆163318 [2]黑龙江省防灾减灾及防护工程重点实验室,黑龙江大庆163318 [3]哈尔滨工业大学市政环境工程学院市政工程系,黑龙江哈尔滨150090

出　　处：《化工进展》2012年第7期1615-1619,共5页Chemical Industry and Engineering Progress

摘　　要：采用单轴三级生物转盘(RBC),进行了生物转盘同步去除化学需氧量和氮的试验研究。水温度15℃,进水COD浓度为400mg/L左右时,转盘对化学需氧量的去除率达到85%左右。控制适宜的碱度,转盘系统氨氮的硝化率在75%左右、总氮(TN)的去除率在50%左右。增设硝化液回流系统后,总氮的去除率显著提高,特别是回流比为200%时,TN去除率在低温下可达73.87%。实验表明生物转盘对化学需氧量和氮有较好的同步去除效果。A 3-stage rotating biological contactor was used to study simultaneous removal of COD and nitrogen.When temperature was 15 ℃ and influent COD concentration was about 400mg/L,removal rate of COD was about 85%.Through controlling proper alkalinity nitrification rate of ammonia was about 75% and removal rate of TN was about 50%.After addition of a nitrification liquid circulation system,removal rate of TN,at reflux ratio of 200% increased to 73.87 %.Experimental results showed good effect of rotating biological contactor on removing COD and nitrogen.

关 键 词：生物转盘 总氮的去除率 化学需氧量的去除率 回流比 

分 类 号：X703[环境科学与工程—环境工程]