惰性稀土瓷砂对一体化装置污水处理效果的影响
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摘要
建立了自行设计的一体化厌氧折流板反应器(ABR)-全混合式曝气池(CMAR)污水处理装置,在有、无惰性稀土瓷砂时,对模拟生活污水的处理效果进行了对比实验研究。结果表明,在有、无惰性稀土瓷砂时装置处理效果均较好,各指标均能达到相应的GB18918-2002中的一、二级标准。但添加惰性稀土瓷砂对污水中有机物及水质的净化处理效果有一定积极影响,能明显降低出口COD、BOD_5,COD、BOD_5去除率分别提高约5个、10个百分点,TN、TP的去除率都能提高约3个百分点,SS去除率能提高5个百分点以上。添加惰性稀土瓷砂能促进装置中颗粒污泥的形成,促进微生物的繁殖,从而达到提高装置处理效果的目的。
The self-designed integrated anaerobic baffled reactor(ABR)-complete mixed aeration tank(CMAR) sewage treatment device was established.The treatment effect of simulated domestic sewage with and without inert rare earth porcelain sand was compared. The results showed that the ABRCMAR integrated sewage treatment device had a good treatment effect with or without inert rare earth porcelain sand, and all indexes could meet the first and second level standards of GB 18918-2002. However, the addition of inert rare earth porcelain sand had a positive effect on the purification of organic matter and water in the sewage, which could significantly reduce the COD and BOD_5 at the outlet, and the removal rates of COD and BOD_5 increased by 5 and 10 percentage points. The removal rate of TN and TP increased by about 3 percentage points, and the removal rate of SS increased by more than 5 percentage points. The addition of inert rare earth porcelain sand could promote the formation of granular sludge in the device and promote the propagation of microorganisms, thereby achieving the purpose of improving the treatment effect of the device.
The self-designed integrated anaerobic baffled reactor(ABR)-complete mixed aeration tank(CMAR) sewage treatment device was established.The treatment effect of simulated domestic sewage with and without inert rare earth porcelain sand was compared. The results showed that the ABRCMAR integrated sewage treatment device had a good treatment effect with or without inert rare earth porcelain sand, and all indexes could meet the first and second level standards of GB 18918-2002. However, the addition of inert rare earth porcelain sand had a positive effect on the purification of organic matter and water in the sewage, which could significantly reduce the COD and BOD_5 at the outlet, and the removal rates of COD and BOD_5 increased by 5 and 10 percentage points. The removal rate of TN and TP increased by about 3 percentage points, and the removal rate of SS increased by more than 5 percentage points. The addition of inert rare earth porcelain sand could promote the formation of granular sludge in the device and promote the propagation of microorganisms, thereby achieving the purpose of improving the treatment effect of the device.
引文
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[3]刘哲,邵小青,侯荣荣,等.HRT对一体化污水处理装置脱氮除磷效果的影响[J].水处理技术,2018,44(4):95-97.
[4]陈佩佩,邵小青,郭松杰,等.水处理中生物填料的研究进展[J].现代化工,2017,37(12):38-42.
[5]CAO Y,VAN LOOSDRECHT M C,DAIGGER G T.Mainstream partial nitritation-anammox in municipal wastewater treatment:status,bottlenecks,and further studies[J].Applied Microbiology&Biotechnology,2017,101(4):1365-1383.
[6]张曼雪,邓玉,倪福全.农村生活污水处理技术研究进展[J].水处理技术,2017,43(6):5-10.
[7]陈汗龙,徐忠富,赵明洋,等.分散式污水处理技术在部队营区污水处理设计中的应用[J].环境工程,2015(s1):80-83.
[8]刘旭东,姜凤,冯欣,等.新型一体化装置处理村镇污水试验研究[J].环境工程,2016,34(12):38-42.
[9]端艳,陆少鸣,江荻.悬浮陶粒曝气生物滤池在城镇污水处理中的挂膜启动[J].水处理技术,2018,44(2):88-92.
[10]FATIHAH S F,DONNELLY T D.Effect of media volume on mixing of biological aerated filters[J].Journal of Environmental Engineering&Science,2008,7(3):229-236.
[11]刘俊良,王琴,李君敬.水处理填料与滤料[M].2版.北京:化学工业出版社,2015.
[12]薛侨,黄雷,王郑,等.轻质滤料在水处理中的应用研究进展[J].应用化工,2017,46(7):1409-1413.
[13]朱羽中,钱效南.稀土瓷砂滤料在旁流过滤中的应用[J].工业用水与废水,2003,34(5):76-77.
[14]段丽萍.稀土在废水处理中的应用[J].阴山学刊(自然科学版),2006,20(4):30-31.
[15]刘少北,曾涛,董亮,等.一种生活污水处理装置:CN205575883U[P].2016-09-14.
[16]城镇污水处理厂污染物排放标准:GB 18918-2002[S].
[17]丁绍兰,杨倩,谢林花,等.核桃壳-陶粒填料曝气生物滤池去除氨氮的研究[J].环境污染与防治,2018,40(1):1-5.
[18]姜志琛,赵曙光,樊耀波,等.新型一体化生物膜反应器处理矿区污水的中试研究[J].水处理技术,2015,41(2):67-70.
[19]裴亮,孙莉英,梁晶,等.不同填料对阶梯式人工湿地降解农业废水的影响[J].水资源与水工程学报,2018(1):232-235.
[20]景若婷,丁爱中,谢恩,等.一体化污水处理反应器处理分散生活污水实验研究[J].水处理技术,2016,42(12):108-112.
[21]HU J Y,ONG S L,NG W J,et al.A new method for characterizing denitrifying phosphorus removal bacteria by using three different types of electron acceptors[J].Water Research,2003,37(14):3463-3471.
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