垃圾渗滤液浓缩液高铁酸钾联合PAC处理技术研究
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摘要
以碟管式反渗透(DTRO)处理垃圾渗滤液产生的浓缩液为研究对象,采用高铁酸钾联合聚合氯化铝(PAC)处理浓缩液.结果表明,在单独采用高铁酸钾的条件下,DTRO浓缩液COD、UV_(254)和色度去除率随着高铁酸钾投加量的增加而升高.高铁酸钾投加量为10 g·L~(-1),pH为5时,COD、UV_(254)和色度去除效果最佳,反应在40 min内基本完成,COD、UV_(254)、色度去除率分别为38.5%、35.7%和68.5%.通过响应曲面法分析高铁酸钾联合PAC处理DTRO浓缩液效果可得,高铁酸钾投加量在10.0～13.0 g·L~(-1)之间,pH调节至3.0～4.0,PAC投加量为13.0～15.0 g·L~(-1)时,DTRO浓缩液COD去除率可达74%.
The reverse osmosis(DTRO) concentrate produced from landfill leachate was treated by potassium ferrate(K_2FeO_4) combined with poly aluminium chloride(PAC). when K_2FeO_4 used alone, the removal rates of COD, UV_(254) and chroma of DTRO concentrate increased with the increase of K_2FeO_4 dosage, with the optimal dosage at 10 g·L~(-1)(pH=5). The removal rates of COD, UV_(254) and chroma were 38.5%, 35.7% and 68.5%, respectively, in 40 min of reaction. A maximum COD removal rate of 74% was obtained under K_2FeO_4 dosage at 10.0～13.0 g·L~(-1), pH 3.0～4.0, and 13.0～15.0 g·L~(-1) of PAC.
The reverse osmosis(DTRO) concentrate produced from landfill leachate was treated by potassium ferrate(K_2FeO_4) combined with poly aluminium chloride(PAC). when K_2FeO_4 used alone, the removal rates of COD, UV_(254) and chroma of DTRO concentrate increased with the increase of K_2FeO_4 dosage, with the optimal dosage at 10 g·L~(-1)(pH=5). The removal rates of COD, UV_(254) and chroma were 38.5%, 35.7% and 68.5%, respectively, in 40 min of reaction. A maximum COD removal rate of 74% was obtained under K_2FeO_4 dosage at 10.0～13.0 g·L~(-1), pH 3.0～4.0, and 13.0～15.0 g·L~(-1) of PAC.
引文
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王东梅,刘丹,刘庆梅,等.2014.渗滤液反渗透浓缩液回灌出水水质变化规律的研究[J].环境科学,35(7):2822-2828
王华,刘艳飞,彭东明,等.2013.膜分离技术的研究进展及应用展望[J].应用化工,42(3):532-534
Chen J,Xu X,Zeng X,et al.2018.Ferrate(VI) oxidation of polychlorinated diphenyl sulfides:Kinetics,degradation,and oxidized products[J].Water Research,143:1-9
程振杰.2013.蒸发法处理垃圾渗滤液试验研究[D].北京:北京工业大学
董金华.2009.高铁酸钾氧化降解水中双酚A的研究[D].长沙:湖南大学
Feng M,Cizmas L,Wang Z,et al.2017.Activation of ferrate(VI) by ammonia in oxidation of flumequine:Kinetics,transformation products,and antibacterial activity assessment[J].Chemical Engineering Journal,323:584-591
Foo K Y,Hameed B H.2009.An overview of landfill leachate treatment via activated carbon adsorption process[J].Journal of Hazardous Materials,171(1):54-60
高鑫.2018.两级DTRO对垃圾渗滤液中污染物的去除特性及基于神经网络的仿真研究[D].成都:西南交通大学
Jiang J Q.2007.Research progress in the use of ferrate (VI) for the environmental remediation[J].Journal of Hazardous Materials,146(3):617-623
贾世超,崔建国.2018.高铁酸钾氧化-絮凝处理苯酚废水过程中pH值的变化[J].中国农村水利水电,(4):159-164
蒋宝军,李俊生,杨威,等.2006.垃圾渗滤液反渗透浓缩液回灌处理中试研究[J].哈尔滨商业大学学报(自然科学版),22(6):36-40
Jiang J Q,Wang S,Panagoulopoulos A.2007.The role of potassium ferrate(VI) in the inactivation of Escherichia coli and in the reduction of COD for water remediation[J].Desalination,210(1/3):266-273
Kjeldsen P,Barlaz M,Rooker A,et al.2002.Present and long-term composition of MSW landfill leachate[J].Critical Reviews in Environmental Science and Technology,32(4):297-336
Liao Z,Dai S,Long S,et al.2018.Pd based in situ AOPs with heterogeneous catalyst of FeMgAl layered double hydrotalcite for the degradation of bisphenol A and landfill leachate through multiple pathways[J].Environ Sci Pollut Res Int,25(35):35623-35636.
Lee Y,Zimmermann S G,Kieu A T,et al.2009.Ferrate (Fe(VI)) application for municipal wastewater treatment:A novel process for simultaneous micropollutant oxidation and phosphate removal[J].Environmental Science & Technology,43(10):3831-3838
Li C,Dong F,Feng L,et al.2017.Bacterial community structure and microorganism inactivation following water treatment with ferrate(VI) or chlorine[J].Environmental Chemistry Letters,15(3):525-530
Li D S,Chen X L.2013.The Study of ammonia-nitrogen and COD removing performance of ferrate(VI) [J].Advanced Materials Research,781-784:2349-2352
马艳,高乃云,祝淑敏,等.2013.高铁酸钾去除水中磺胺嘧啶[J].同济大学学报(自然科学版),41(1):106-109
Ni X,Ji M,Yang Z,et al.2004.Preparation and structure characterization of nanocrystalline BaFeO4[J].Journal of Crystal Growth,261(1):82-86
Renou S,Givaudan J G,Poulain S,et al.2008.Landfill leachate treatment:Review and opportunity[J].Journal of Hazardous Materials,150(3):468-493
Sharma V K,Chen L,Zboril R.2015.Review on high valent FeVI (Ferrate):A sustainable green oxidant in organic chemistry and transformation of pharmaceuticals[J].ACS Sustainable Chemistry & Engineering,4(1):18-34
Sharma V K,Rivera W,Smith J O,et al.1998.Ferrate(VI) oxidation of aqueous cyanide[J].Environmental Science & Technology,32(17):2608-2613
王东梅,刘丹,刘庆梅,等.2014.渗滤液反渗透浓缩液回灌出水水质变化规律的研究[J].环境科学,35(7):2822-2828
王华,刘艳飞,彭东明,等.2013.膜分离技术的研究进展及应用展望[J].应用化工,42(3):532-534