化工进展

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SBR工艺同步去除屠宰废水高浓度氮磷

贾艳萍1,2,王 莹1,张兰河1,李 军1   

  1. 1东北电力大学化学工程学院,吉林 吉林 132012;2沈阳农业大学食品学院,辽宁 沈阳 110866
  • 出版日期:2011-07-05 发布日期:2011-07-05

Simultanous removal of high concentration nitrogen and phosphorus from abattoir wastewater by using a sequencing batch reactor

JIA Yanping 1,2,WANG Ying1,ZHANG Lanhe1,LI Jun1   

  1. 1School of Chemical Engineering,Northeast Dianli University,Jilin 132012,Jilin,China;2 School of Food Science,Shenyang Agricultural University,Shenyang 110866,Liaoning,China
  • Online:2011-07-05 Published:2011-07-05

摘要:

研究了采用序列间歇式活性污泥法(SBR工艺)同步去除屠宰废水中高浓度氮、磷和COD。结果表明,SBR工艺采用分步进水,避免了硝化阶段NO3-NNO2-N的积累,能够提供生物除磷所需的厌氧环境。在温度为35 、污泥龄为14天的条件下,采用两种成分废水作为原水(预发酵废水和屠宰废水混合),经过3个月的启动,当原水中TPTNCOD浓度分别为36.5 mg/L226 mg/L2615 mg/L时,TPTNCOD的去除率分别高于96%95%95.5%,出水中TPTNCOD浓度分别低于1.4 mg/L10.8 mg/L95 mg/L

Abstract:

A sequencing batch reactorSBRwas used to remove high concentration nitrogenphosphorus and COD in the abattoir wastewater. The results showed that step-feed could avoid high-level build-up of nitrate and nitrite during the nitrification and create anaerobic conditions for biological phosphorus removal. Two types of abattoir wastewater were used as raw wastewaterone was the effluent from abattoir wastewater and the other was the pre-fermentor wastewater. After a 3-month start-upremoval efficiencies of total phosphorustotal nitrogen and COD were higher than 96%95% and 95.5%respectivelywhen total phosphatetotal nitrogen and COD in the influent were 36.5 mg/L226 mg/L and 2615 mg/Lrespectivelyunder the condition of a sludge age of 14 days at 35 .The concentrations of total phosphatetotal nitrogen and COD in the effluent were lower than 1.4 mg/L10.8 mg/L and 95 mg/Lrespectively.

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