Membrane Science and Technology

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Research on Treatment of the Plant Silage Effluent Based on Membrane Reactor

Authors： Zou Haiming1, Wang Jianfei1, Zhou Yi1, Li Feiyue1, Li Yonggang3

Units： 1. Anhui Science and Technology University, Fengyang, 233100; 2. Dairy Farm of FENGYANG in Anhui, Fengyang, 233100

KeyWords： zeolites；biomembrane reactor；Corn Silage; Effluent; Wastewater treatment

ClassificationCode：

year,volume(issue):pagination： 2011, 31(6):69-72

Abstract：

In plant silage effluent, CODcr and NH4+-N are in high concentration, which has caused seriously pollution in some areas. Bio-zeolite system, removal of CODcr and NH4+-N, was selected to treat the corn silage effluent in dairy farm. The following results were obtained: beginning the biofilm,after 23th day, the removal efficiency of CODcr and NH4+-N was over 70% and 80%，which reveals the stable for the removal of CODcr and NH4+-N by bio-zeolite system after the biofilm maturation. When the gas to liquid ratio was 2:1, hydraulic retention time was 12h, the biofilm has the best of activation and the highest removal rate of organic pollutant. The removal rate of NH4+-N decreased to 32.7% when the concentration of CODcr increased to 280mg/L.The removal of NH4+-N was limited by organic load and the decrease of DO concentration, organic degradation, severely inhibited the growth of nitrifying bacteria.

Funds：

国家星火计划项目（2008GA710029）；安徽省教育厅自然科学研究项目（KJ2010B292）

AuthorIntro：

邹海明（1977-），男（汉族），安徽巢湖人，讲师，硕士，主要从事水处理方面教学和研究。E-mail:hmzou@126.com

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