ABR处理农村生活污水填料选择的研究
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摘要
采用厌氧折流板反应器(ABR)处理农村生活污水,并选择出适合农村生活污水处理的ABR填料。以立体弹性填料、纤维球填料和鲍尔环填料作为ABR填料,以无填料ABR为对照实验装置,考察了填料对ABR处理效果和生物相的影响,并对各填料ABR工程造价进行了分析。研究结果表明:装填立体弹性填料、纤维球填料和鲍尔环填料后,ABR对COD、SCOD和SS的去除率均有一定程度的提高;装填填料ABR中微生物种类和数量均多于无填料ABR;立体弹性填料的造价分别约为纤维球填料和鲍尔环填料的1/8和1/15。因此,立体弹性填料最适合作为ABR处理农村生活污水用填料,装置稳定后,出水COD、SCOD和SS的平均浓度分别为87.42、49.61和13.20 mg/L,平均去除率分别为59.04%、60.05%和84.12%。
The paper used anaerobic baffled reactors( ABRs) to treat rural domestic sewage,and chose the suitable packing. Flexible three- dimensional packing,the pall ring packing and fiber ball packing was chosen as ABR packing,and used an ABR without packing as a contrastive reactor,and investigated influence of packing on the treatment and biofacies of ABR and,and also analyzed the construction cost of these ABRs. The results showed that after filling the flexible three- dimensional packing,pall ring packing and fiber ball packing,the removal rates of ABR to COD,SCOD and SS have certain increase. There were more microbial species and quantities in the three ABRs filled with packing than that without packing. The construction cost of the ABR filled with flexible three- dimensional packing is almost 1 /8 of the ABR filled with pall ring packing,and 1 /15 of the ABR filled with fiber ball packing. Therefore the flexible three- dimensional packing was the most suitable one to be added into ABR to treat rural domestic sewage. When the equipment is stable,the average concentrations of effluent COD,SCOD and SS are 87. 42 mg / L,49. 61 mg / L and 13. 20 mg / L respectively,and the average removal rates of COD,SCOD and SS are 59. 04 %,60. 05 % and 84. 12 % respectively.
The paper used anaerobic baffled reactors( ABRs) to treat rural domestic sewage,and chose the suitable packing. Flexible three- dimensional packing,the pall ring packing and fiber ball packing was chosen as ABR packing,and used an ABR without packing as a contrastive reactor,and investigated influence of packing on the treatment and biofacies of ABR and,and also analyzed the construction cost of these ABRs. The results showed that after filling the flexible three- dimensional packing,pall ring packing and fiber ball packing,the removal rates of ABR to COD,SCOD and SS have certain increase. There were more microbial species and quantities in the three ABRs filled with packing than that without packing. The construction cost of the ABR filled with flexible three- dimensional packing is almost 1 /8 of the ABR filled with pall ring packing,and 1 /15 of the ABR filled with fiber ball packing. Therefore the flexible three- dimensional packing was the most suitable one to be added into ABR to treat rural domestic sewage. When the equipment is stable,the average concentrations of effluent COD,SCOD and SS are 87. 42 mg / L,49. 61 mg / L and 13. 20 mg / L respectively,and the average removal rates of COD,SCOD and SS are 59. 04 %,60. 05 % and 84. 12 % respectively.
引文
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[2]薛媛,武福平,李开明,等.农村生活污水处理技术应用现状[J].现代化农业,2011(4):41-44.
[3]Ye Fenxia,Li Ying.Enhancement of nitrogen removal in towery hybrid constructed wetland to treat domestic wastewater for small rural communities[J].Ecological Engineering,2009,35(7):1043-1050.
[4]Li Song,Li Hua,Liang Xingqiang,et al.Rural wastewater irrigation and nitrogen removal by the paddy wetland system in the Tai Lake Region of China[J].Journal of Soils and Sediments Protection Risk Assessment&Rem,2009,9(5):433-442.
[5]Shannon M A,Bohn P W,Menachem E,et al.Science and technology for water purification in the coming decades[J].Nature,2008,452(7185):301-310.
[6]Bachmann A,Beard V L,Mc Carty P L,et al.Comparisonof fixed film reactors with a modified sludge blanket reactor[J].Pollution Technology Reviews,1983,10:384-402.
[7]徐金兰,王志盈,李贺.厌氧折流板反应器(ABR)的工艺特征与处理性能[J].西安建筑科技大学学报(自然科学版),2002,34(4):362-365+389.
[8]赵来利,佘宗莲,高孟春.常温下ABR处理低浓度废水性能及污泥特性[J].环境工程学报,2010,4(4):761-766.
[9]杜接弟,王毅力,李炯,等.HRT对ABR处理低浓度废水的效果和颗粒污泥特征的影响[J].环境科学,2009,30(7):2022-2029.
[10]苏鸿洋.复合式厌氧折流板反应器处理城市生活污水试验研究[D].福州:福州大学,2003.
[11]黄永恒,王建龙,文湘华,等.折流式厌氧反应器的工艺特性及其运用[J].中国给水排水,1999,15(7):18-20.
[12]刘洪喜.农村生活污水处理技术的探讨.污染防治技术[J],2009,22(3):30-31+78.
[13]王志强,李黎,罗海霞,等.农村生活污水处理技术研究[J].安徽农业科学,2012,40(5):2957-2959.
[14]梁祝,倪晋仁.农村生活污水处理技术与政策选择[J].中国地质大学学报(社会科学版),2007,7(3):18-22.