多级臭氧气浮装置深度处理印染生化出水中试研究
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摘要
针对传统印染废水深度处理工艺复杂、冗长等特点,开发了一种多级臭氧气浮一体化装置(DOIF)。将臭氧与气浮分离相结合,同时引入第二级氧化单元,使臭氧得到最大程度的利用,在一个操作系统内实现了固液分离、脱色、降解有机物等多个环节。实验结果表明,该工艺对COD、色度、UV_(254)、TOC的去除率分别可达到25.5%、54.5%、37.5%、32.4%,也是再生水回用中膜分离的预处理环节。
Since the characterizations of advanced treatment process of traditional dyeing wastewater are complicat-ed and lengthy,a kind of multi-level integrated device,dual-step ozone induced flotation(DOIF)process hasbeen developed. Ozone has to be combined with flotation separation,and the second-level oxidation unit intro-duced,in order to make full use of ozone,achieving several links,including solid-fluid separation,decolorizationand organic matter degradation in one operation system. The results show that by DOIF process the removing ratesof COD,color,UV_(254),and TOC can reach 25.5%,54.5%,37.5%,and 32.4% respectively. The process is also apretreatment step for membrane separation in reclaimed water reuse.
Since the characterizations of advanced treatment process of traditional dyeing wastewater are complicat-ed and lengthy,a kind of multi-level integrated device,dual-step ozone induced flotation(DOIF)process hasbeen developed. Ozone has to be combined with flotation separation,and the second-level oxidation unit intro-duced,in order to make full use of ozone,achieving several links,including solid-fluid separation,decolorizationand organic matter degradation in one operation system. The results show that by DOIF process the removing ratesof COD,color,UV_(254),and TOC can reach 25.5%,54.5%,37.5%,and 32.4% respectively. The process is also apretreatment step for membrane separation in reclaimed water reuse.
引文
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[13]杨岸明,常江,甘一萍,等.臭氧氧化二级出水有机物可生化性研究[J].环境科学,2010,31(2):363-367.
[14]李昊,周律,李涛,等.臭氧氧化法深度处理印染废水生化处理出水[J].化工环保,2012,32(1):30-34.
[2]曾杭成,张国亮,孟琴,等.超滤/反渗透双膜技术深度处理印染废水[J].环境工程学报,2008,2(8):49-50.
[3]张挺,唐佳玙,高冲.印染废水深度处理及回用技术研究进展[J].工业水处理,2013,33(9):6-9.
[4]王海龙,张玲玲,王新力,等.臭氧氧化工艺在印染废水处理中的应用进展[J].工业水处理,2011,31(7):18-21.
[5]张静,杜亚威,刘晓静,等.臭氧微气泡处理酸性大红3R废水特性研究[J].环境科学,2015,36(2):584-589.
[6]郭春芳.催化臭氧氧化工艺深度处理印染废水[J].工业水处理,2012,33(7):43-46.
[7]董淑福.多相催化臭氧氧化法处理印染废水的研究[J].工业水处理,2013,33(4):58-60.
[8]王晓昌,金鹏康.浅析再生水工业回用的水质保障问题[J].工业用水与废水,2012,43(2):1-5.
[9]Chu L B,Yan S T,Xing X H,et al.Enhanced sludge solubilization by microbubble ozonation[J].Chemosphere,2008,72(2):205-212.
[10]Reckhow D A,Singer P L,Trussell R R.Ozone as a coagulant aid.Proc.of the AWWA national conference:ozonation,recent advances and research needs[C].AWWARF,Denver,Co.,1986:17-46.
[11]金鹏康,韩冬,金鑫,等.多级臭氧气浮一体化装置对污水处理出水的处理效果[J].中国给水排水,2015,31(15):12-15.
[12]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002:89-211.
[13]杨岸明,常江,甘一萍,等.臭氧氧化二级出水有机物可生化性研究[J].环境科学,2010,31(2):363-367.
[14]李昊,周律,李涛,等.臭氧氧化法深度处理印染废水生化处理出水[J].化工环保,2012,32(1):30-34.