化工进展

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生物转盘同步去除化学需氧量和氮的实验研究

李 芳1,2,崔红梅1,2 ,吕炳南3   

  1. 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
  • 出版日期:2012-07-05 发布日期:2012-07-05

COD and nitrogen removal with rotating biological contactor

LI Fang1,2,CUI Hongmei1,2,Lü Bingnan3   

  1. 1Department of Water Draining and Supply,School of Civil Engineering,Northeast Petroleum University,Daqing 163318,Heilongjiang,China;2Heilongjiang Key Laboratory of Disaster Prevention,Mitigation and Protection Engineering,Daqing 163318,Heilongjiang,China;3School of Municipal & Environmental Engineering,Harbin Institute of Technology,Harbin 150090,Heilongjiang,China
  • Online:2012-07-05 Published:2012-07-05

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。

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

Abstract: 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.

Key words: rotating biological contactor, removal rate of total nitrogen, removal rate of COD, reflux ratio

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