PAC和PAFC对内循环连续砂滤器处理石化二级出水的影响

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Abstract

The inner loop continuous sand filter (ILCSF) is often used as the pretreatment process for the removal of SS and COD during the advanced treatment of biological secondary effluent. ILCSF can guarantee the operation stability of the following connected advanced treatment unit. In this study, poly aluminum chloride (PAC) and poly aluminum ferric chloride (PAFC) were used as the coagulant and the performance and operation of ILCSF were investigated. The results showed that when the dosages of PAC and PAFC ranged from 5to 30mg/L, the removal of SS and COD increased at the beginning and then decreased when the dosage was over 10mg/L. The optimized coagulant dosage was 10mg/L for PAC and PAFC. The removal rates of SS and COD were 49.7% and 12.9% for PAC and 50.6% and 13.8% for PAFC on the optimized dosage. The ILCSF could preferentially remove the macromolecular organic matters with the relative molecular weight higher than 3k. However, the ILCSF has the poor ability to remove the dissolved organic matters (DOM). The dissolved organic carbon (DOC) removal rate was lower than 5% even on the optimized conditions. The dose of PAFC was more suitable for the stable operation of ILCSF than dose of PAC. The viscosity of the mixture dosing PAFC was lower than that of dosing PAC. In this study, the optimized dosage of PAFC was determined with the value of 10to 15mg/L. It could guarantee the high removal rate of SS and the stable operation of the ILCSF.

Key words： the inner loop continuous sand filter (ILCSF) poly aluminum chloride (PAC) poly aluminum ferric chloride (PAFC) dissolved organic matters (DOM) viscosity

Received: 08 April 2016

PACS:

X703

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	Articles by authors
	WANG Ya-ning
	WU Chang-yong
	ZHOU Yue-xi
	LIU Heng-ming
	ZHU Chen
	CHEN Teng

Cite this article:

WANG Ya-ning,WU Chang-yong,ZHOU Yue-xi等. Effect of PAC and PAFC on the performance and operation of inner loop continuous sand filter treating petrochemical secondary effluent[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(12): 3625-3630.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I12/3625

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[2]	徐竟成,许健,李光明,等.微絮凝-微滤用于印染废水回用反渗透预处理的试验研究[J].环境工程学报,2007,11:64-68.
[3]	栾兆坤,李桂平,王曙光.微絮凝-深床直接过滤及工艺参数研究[J].中国给水排水,2002,4:14-18.
[4]	Jonsson L,Plaza E,Hultman B.Experiences of nitrogen and phosphorus removal in deep-bed filters in the Stockholm area[J].Water Science and Technology,1997,36(1):183-190.
[5]	郑福灵,张金松,曲志军,等.微絮凝直接过滤处理污水处理厂二级出水的中试研究[J].给水排水,2009,S1:119-122.
[6]	傅金祥,陈正清,赵玉华,等.微絮凝过滤处理污水厂二级出水用作景观水研究[J].中国给水排水,2006,19:65-67.
[7]	陈士明,刘玲.微絮凝直接过滤-超滤组合工艺深度处理印染废水[J].环境工程学报,2011,11:2565-2570.
[8]	刘志刚,虞静静,马天,等.污水深度处理微絮凝-砂滤工程实例[J].环境工程,2011,4:15-17.
[9]	GB8978-1996污水综合排放标准[S].
[10]	GB31571-2015石油化学工业污染物排放标准[S].
[11]	南军,贺维鹏,姜卫东,等.颗粒计数仪在水处理絮凝过程中的应用研究[J].环境科学与技术,2008,31(12):132-135.
[12]	Sudoh R,Islam M S,Sazawa K,et al.Removal of dissolved humic acid from water by coagulation method using polyaluminum chloride (PAC) with calcium carbonate as neutralizer and coagulant aid[J].J.Environ.Chem.Engin.,2015,3(2):770-774.
[13]	Zhang Y,Li S,Wang X,Li X.Coagulation performance and mechanism of polyaluminum ferric chloride (PAFC) coagulant synthesized using blast furnace dust[J].Separation and Purification Technology,2015,154:345-350.
[14]	周进勤,宋建昕,张杰,等.活性砂滤工艺在株洲某污水处理厂提标改造工程中的应用.中国市政工程,2015,6:36-38.
[15]	秦树林,金海锋,李向东.微絮凝连续砂滤装置深度处理矿区污水的研究[J].能源环境保护,2009,23(3):21-22.
[16]	陈腾.微絮凝砂滤工艺处理石化二级出水的研究[D].西安:长安大学,2015.
[17]	薛罡,马钟瑛,孟幼平,等.微絮凝/涤纶高弹丝纤维球过滤工艺除藻试验研究[J].中国给水排水,2009,25(7):52-54.
[18]	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.
[19]	Wu C,Gao Z,Zhou Y,et al.Treatment of secondary effluent from a petrochemical wastewater treatment plant by ozonation-biological aerated filter[J].J.Chem.Technol.Biotechnol.,2015,90:543-549.
[20]	Huang X,Sun S,Gao B,et al.Coagulation behavior and floc properties of compound bioflocculant-polyaluminum chloride dual-coagulants and polymeric aluminum in low temperature surface water treatment[J].J.Environ.Sci.,2015,30:215-222.
[21]	胡俊虎,刘喜元,李晓宏,等.复合型絮凝剂聚合氯化铝铁(PAFC)的合成及其应用.[J].环境化学,2007,26(1):36-38.
[22]	Ngoc H T,Huu H N,Taro U.A critical review on characterization strategies of organic matter for wastewater and water treatment process[J].Bioresource Technology,2015,193:523-533.
[23]	吴志玲,徐培嘉,陈洪斌.混凝/微滤工艺用于青草沙水源水厂的生产废水回用研究[J].中国环境科学,2014,34(3):623-629.
[24]	孙青亮,吴昌永,胡翔,等.石化污水厂二级出水溶解性有机物分级解析研究[J].中国环境科学,2012,32(11):2017-2012.
[25]	徐敏,吴昌永,周岳溪,等.基于分子量分布的石化污水厂出水溶解性有机物性质研究[J].环境工程技术学报,2012,2(6):469-472.
[26]	Tien V N,Sanghyun J,Thi T N,Jaya K,Saravanamuthu V.Effect of granular activated carbon filter on the subsequent flocculation in seawater treatment[J].Desalination,2014,354:9-16
[27]	Yan M,Wang D,Ni J,et al.Mechanism of natural organic matter removal by polyaluminum chloride:Effect of coagulant particle size and hydrolysis kinetics[J].Water Research,2008,42:3361-3370.
[28]	Buffle J,Leppard G G.Characterization of aquatic colloids and macromolecules 2-Key role of physical structures on analytical results[J].Environ.Sci.Technol.,1995,29(9):2176-2184.
[29]	黄晓家,时广云.废水直接微絮凝过滤的研究[J].给水排水,1993,(11):31-33.
[30]	黄树辉,吕军.微絮凝直接过滤工艺处理生活污水的实验研究[J].浙江大学学报,2003,37(6):740-742.
[1]	阳佳中,张永坡,张学兵,等.连续式砂滤在城市污水深度处理中的应用[J].西南给排水,2013,35(3):16-18.
[2]	徐竟成,许健,李光明,等.微絮凝-微滤用于印染废水回用反渗透预处理的试验研究[J].环境工程学报,2007,11:64-68.
[3]	栾兆坤,李桂平,王曙光.微絮凝-深床直接过滤及工艺参数研究[J].中国给水排水,2002,4:14-18.
[4]	Jonsson L,Plaza E,Hultman B.Experiences of nitrogen and phosphorus removal in deep-bed filters in the Stockholm area[J].Water Science and Technology,1997,36(1):183-190.
[5]	郑福灵,张金松,曲志军,等.微絮凝直接过滤处理污水处理厂二级出水的中试研究[J].给水排水,2009,S1:119-122.
[6]	傅金祥,陈正清,赵玉华,等.微絮凝过滤处理污水厂二级出水用作景观水研究[J].中国给水排水,2006,19:65-67.
[7]	陈士明,刘玲.微絮凝直接过滤-超滤组合工艺深度处理印染废水[J].环境工程学报,2011,11:2565-2570.
[8]	刘志刚,虞静静,马天,等.污水深度处理微絮凝-砂滤工程实例[J].环境工程,2011,4:15-17.
[9]	GB8978-1996污水综合排放标准[S].
[10]	GB31571-2015石油化学工业污染物排放标准[S].
[11]	南军,贺维鹏,姜卫东,等.颗粒计数仪在水处理絮凝过程中的应用研究[J].环境科学与技术,2008,31(12):132-135.
[12]	Sudoh R,Islam M S,Sazawa K,et al.Removal of dissolved humic acid from water by coagulation method using polyaluminum chloride (PAC) with calcium carbonate as neutralizer and coagulant aid[J].J.Environ.Chem.Engin.,2015,3(2):770-774.
[13]	Zhang Y,Li S,Wang X,Li X.Coagulation performance and mechanism of polyaluminum ferric chloride (PAFC) coagulant synthesized using blast furnace dust[J].Separation and Purification Technology,2015,154:345-350.
[14]	周进勤,宋建昕,张杰,等.活性砂滤工艺在株洲某污水处理厂提标改造工程中的应用.中国市政工程,2015,6:36-38.
[15]	秦树林,金海锋,李向东.微絮凝连续砂滤装置深度处理矿区污水的研究[J].能源环境保护,2009,23(3):21-22.
[16]	陈腾.微絮凝砂滤工艺处理石化二级出水的研究[D].西安:长安大学,2015.
[17]	薛罡,马钟瑛,孟幼平,等.微絮凝/涤纶高弹丝纤维球过滤工艺除藻试验研究[J].中国给水排水,2009,25(7):52-54.
[18]	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.
[19]	Wu C,Gao Z,Zhou Y,et al.Treatment of secondary effluent from a petrochemical wastewater treatment plant by ozonation-biological aerated filter[J].J.Chem.Technol.Biotechnol.,2015,90:543-549.
[20]	Huang X,Sun S,Gao B,et al.Coagulation behavior and floc properties of compound bioflocculant-polyaluminum chloride dual-coagulants and polymeric aluminum in low temperature surface water treatment[J].J.Environ.Sci.,2015,30:215-222.
[21]	胡俊虎,刘喜元,李晓宏,等.复合型絮凝剂聚合氯化铝铁(PAFC)的合成及其应用.[J].环境化学,2007,26(1):36-38.
[22]	Ngoc H T,Huu H N,Taro U.A critical review on characterization strategies of organic matter for wastewater and water treatment process[J].Bioresource Technology,2015,193:523-533.
[23]	吴志玲,徐培嘉,陈洪斌.混凝/微滤工艺用于青草沙水源水厂的生产废水回用研究[J].中国环境科学,2014,34(3):623-629.
[24]	孙青亮,吴昌永,胡翔,等.石化污水厂二级出水溶解性有机物分级解析研究[J].中国环境科学,2012,32(11):2017-2012.
[25]	徐敏,吴昌永,周岳溪,等.基于分子量分布的石化污水厂出水溶解性有机物性质研究[J].环境工程技术学报,2012,2(6):469-472.
[26]	Tien V N,Sanghyun J,Thi T N,Jaya K,Saravanamuthu V.Effect of granular activated carbon filter on the subsequent flocculation in seawater treatment[J].Desalination,2014,354:9-16
[27]	Yan M,Wang D,Ni J,et al.Mechanism of natural organic matter removal by polyaluminum chloride:Effect of coagulant particle size and hydrolysis kinetics[J].Water Research,2008,42:3361-3370.
[28]	Buffle J,Leppard G G.Characterization of aquatic colloids and macromolecules 2-Key role of physical structures on analytical results[J].Environ.Sci.Technol.,1995,29(9):2176-2184.
[29]	黄晓家,时广云.废水直接微絮凝过滤的研究[J].给水排水,1993,(11):31-33.
[30]	黄树辉,吕军.微絮凝直接过滤工艺处理生活污水的实验研究[J].浙江大学学报,2003,37(6):740-742.