BioDopp生化工艺处理高海拔地区市政污水
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摘要
研究了低温条件下中试BioDopp工艺对于低碳氮比市政污水中污染物的去除效果。结果表明,BioDopp工艺稳定运行阶段控制运行参数为回流体积比20倍左右,DO的质量浓度0.3~0.8 mg/L、水温9~12℃时,出水COD平均为35.66 mg/L,NH_(3~-)N、TN的质量浓度平均分别为1.0、11.67 mg/L,达到了设计出水排放标准。同时确定BioDopp生化工艺与芽孢杆菌结合应用时,适宜DO的质量浓度应控制为0.3~0.8 mg/L。
A pilot plant test was proceeded to investigate removal efficiency of BioDopp process for the removal of pollutants in municipal wastewater with low ratio of carbon to nitrogen under the condition of low temperature. The results showed that in the stable operation stage of BioDopp process,operation parameters were controlled as following: the reflux volume ratio was 20 times, mass concentration of DO was 0.3~0.8 mg/L, water temperature was 9~12 ℃, effluent COD was 35.66 mg/L, and mass concentration of NH_(3~-)N and TN were 1.01 and 11.67 mg/L, respectively, which reached the design discharge standard. The optimal mass concentration of DO for the combination of Bio Dopp and Bacillus should be controlled in the range of 0.3~0.8 mg/L.
A pilot plant test was proceeded to investigate removal efficiency of BioDopp process for the removal of pollutants in municipal wastewater with low ratio of carbon to nitrogen under the condition of low temperature. The results showed that in the stable operation stage of BioDopp process,operation parameters were controlled as following: the reflux volume ratio was 20 times, mass concentration of DO was 0.3~0.8 mg/L, water temperature was 9~12 ℃, effluent COD was 35.66 mg/L, and mass concentration of NH_(3~-)N and TN were 1.01 and 11.67 mg/L, respectively, which reached the design discharge standard. The optimal mass concentration of DO for the combination of Bio Dopp and Bacillus should be controlled in the range of 0.3~0.8 mg/L.
引文
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[5]秦臻.Bio Dopp技术处理高氨氮高浓度化纤废-己内酰胺废水中试试验研究[D].西安:长安大学,2007.
[6]孟雪征.冷适应微生物处理寒冷地区低温生活污水的研究[D].哈尔滨:哈尔滨工业大学,2001.
[7]Kim M,Nakhla G.The beneficial role of intermediate clarification in a novel MBR based process for biological nitrogen and phosphorus removal[J].Journal of Chemical Technology and Biotechnology,2009,84(5):637-642.
[8]You S J,Chuang S H,Ouyang C F.Nitrification efficiency and nitrifying bacteria abundance in combined AS-RBC and A2O systems[J].Water Research,2003,37(10):2281-2290.
[2]李亚选,张晓玲,姜安玺,等.低温菌去除污染物的研究现状[J].广州环境科学,2006,21(2):14-18.
[3]Chevalier P.Nitrogen and phosphorus removal by high latitude matforming cyanobacteria for potential usein teriary wastewater treatment[J].Appl Phycology,2000,12(2):105-113.
[4]李军,杨秀山,彭永臻.微生物与水处理工程[M].北京:化学工业出版社,2002:48-62.
[5]秦臻.Bio Dopp技术处理高氨氮高浓度化纤废-己内酰胺废水中试试验研究[D].西安:长安大学,2007.
[6]孟雪征.冷适应微生物处理寒冷地区低温生活污水的研究[D].哈尔滨:哈尔滨工业大学,2001.
[7]Kim M,Nakhla G.The beneficial role of intermediate clarification in a novel MBR based process for biological nitrogen and phosphorus removal[J].Journal of Chemical Technology and Biotechnology,2009,84(5):637-642.
[8]You S J,Chuang S H,Ouyang C F.Nitrification efficiency and nitrifying bacteria abundance in combined AS-RBC and A2O systems[J].Water Research,2003,37(10):2281-2290.