同步硝化反硝化膜生物反应器脱除钨冶炼废水中氨氮的影响因素研究
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摘要
考察了同步硝化反硝化膜生物反应器(SNdNMBR)过程脱除钨冶炼废水中氨氮的影响因素。试验结果表明,当ρ(DO)=1 mg/L、HRT=8 h、m(C)/m(N)=1.5～2.0时,系统SNdN较高,处理效果最佳;污泥停留时间(SRT)为30～40 d时,污泥活性比在0.75左右,污泥活性较好,MLSS的质量浓度维持在5.5 g/L左右,系统对NH4+-N、TN的去除效果分别达到70%和57%左右。
The influence factor of ammonia nitrogen removal for tungsten smelting wastewater by SNdNMBR was studied. The results showed: under the operating conditions of ρ(DO)=1 mg/L, HRT=8 h and m(C)/m(N)=1.5~2.0, system had a higher SNdN, and had better treatment effect; when SRT=30~40d, the activity of the sludge is more better, and the ratio is 0.75; MLSS maintained is about 5.5 g/L, the removal efficiencies of system for NH4+-N and TN is 70% and 57%, respectively.
The influence factor of ammonia nitrogen removal for tungsten smelting wastewater by SNdNMBR was studied. The results showed: under the operating conditions of ρ(DO)=1 mg/L, HRT=8 h and m(C)/m(N)=1.5~2.0, system had a higher SNdN, and had better treatment effect; when SRT=30~40d, the activity of the sludge is more better, and the ratio is 0.75; MLSS maintained is about 5.5 g/L, the removal efficiencies of system for NH4+-N and TN is 70% and 57%, respectively.
引文
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[2]孙锦宜.含氮废水处理技术与应用[M].北京:化学工业出版社,2003.
[3]王京.用液膜法处理氨氮废水的研究[J].贵州化工,2006,31(2):35-36.
[4]宋卫锋,骆定法,王孝武,等.折点氯化法处理高NH3-N含钴废水试验与工程实践[J].环境工程,2006,24(5):12-14.
[5]闵敏,黄种买.化学沉淀法去除养猪场废水中氨氮的实验研究[J].化学生物工程,2005(5):27-30.
[6]黄骏.氨氮废水处理技术研究进展[J].环境污染治理技术与设备,2002,3(1):65-68.
[7]付迎春,钱仁渊,金鸣林,等.催化湿式氧化法处理氨氮废水的研究[J].煤炭转化,2004,27(2):72-75.
[8]吴百力.高浓度氨氮废水处理技术及其发展趋势[J].环境保护科学,2006(2):22-24.
[9]张仁志,褚华宁,韩恩山,等.氨氮废水处理技术的发展[J].中国环境管理干部学院学报,2005,15(3):91-94.
[10]Kimura K,Nishisakor,Miyoshi T,et a1.Baffled membrane bioreactor for efficient nutrient removal from municipal wastewater[J].War Res,2008,42(3):625-632.
[11]Komeslio T,Teschner K,Hegemann W,et a1.Vacuum membrane apphcations in domestic wastewater reuse[J].Desalination,2007,215(1/3):22-28.
[12]周少奇,周吉林,范家明.同时硝化反硝化生物脱氮技术研究进展[J].环境技术,2002(2):38-44.
[13]M Sarioglu,G insel,N Artan,et al.Modeling nitrogen removal performance of a membrane bioreactor under dissolved oxygen dynamics[J].Environ Eng Sci,doi:10.1089/ees.2008.0042.
[14]GuPta A B,GuPta S K.Simultaneous carbon and nitrogen Removal in a mixed culture aerobic RBC biofilm[J].Wat Res.,1999,32(2):555-561.
[15]国家环境保护总局《水和废水监测分析方法》编委会.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[16]Third K A,Burnett N,Cord-Ruwiseh R.Shaultaneous nitrifieation and denitrifieation using stored substrate(PHB)as the electron donor in an SBR[J].Biotechnology and Bioengineering,2003,83(6):706-720.