KMnO_4-PAC联用工艺去除水中三氯生及其降解机理研究Research on the Degradation Mechanism of Triclosan Removal Technology by Combining Potassium Permanganate and Powder Activated Carbon
周生辉;王菲凤;李青松;陈幼华;高乃云;
摘要(Abstract):
采用高锰酸钾与粉末活性炭(KMnO4-PAC)联用技术去除水中三氯生(TCS),考察了PAC投加方式,PAC投加量、KMnO4投加量、pH值等因素对TCS去除的影响,并探讨联用工艺降解TCS的机理.结果表明:KMnO4与PAC同时投加时,TCS去除率可达到99.7%,TCS去除率随着PAC投加量的增加而升高,随KMnO4投加量的增加先升高、后降低、再升高,偏碱性条件有利于TCS的去除,腐植酸对TCS的去除起促进作用.GC/MS分析表明:2,4-二氯苯酚(2,4-DCP)为KMnO4氧化TCS的主要产物.
关键词(KeyWords): 三氯生;高锰酸钾;粉末活性炭;氧化产物
基金项目(Foundation): 国家自然科学基金资助项目(51008261;51208468);; 福建省自然科学基金资助项目(2013J01212);; 厦门市科技局资助项目(3502Z20131157);; 厦门理工学院杰出青年科研人才培育计划资助项目(JA11227)
作者(Authors): 周生辉;王菲凤;李青松;陈幼华;高乃云;
参考文献(References):
- [1]Adolfsson-Erici M,Pettersson M,Parkkonen J,et al.Triclosan,a commonly used bactericide found in human milk and in the aquatic environment in Sweden[J].Chemosphere,2002,46:1485-1489.
- [2]Ingerslev F,Vaclavik E,Halling B.Sorenson,Pharmaceuticals and personal care products:a source of endocrine disruption in the environment[J].Pure Appl Chem,2003,75:1881-1893.
- [3]Canosa P,Morales S,Rodríguez I,et al.Aquatic degradation of triclosan and formation of toxic chlorophenols in presence of low concentrations of free chlorine[J].Anal Bioanal Chem,2005,383:1119-1126.
- [4]Lores M,Llompart M,Prado L S,et al.Confirmation of the formation of dichlorodibenzo-p-dioxin in the photodegradation of triclosan by photo-SPME[J].Anal Bioanal Chem,2005,381:1294-1298.
- [5]Peter C O,Schmitt-Jansen M,Slobodnik J,et al.Triclosan-the forgotten priority substance[J].Environ Sci Pollut Res,2012,19:585-591.
- [6]Marshall R,Royer T.Pharmaceutical compounds and ecosystem function:an emerging research challenge for aquatic ecologists[J].Ecosystems,2012,15:867-880.
- [7]Braoudaki M,Hilton A C.Low level of cross-resistance between triclosan and antibiotics in Escherichia coli K-12 and E.coli O55 compared to E.coli O157[J].FEMS Microbiology Letters,2004,235:305-309.
- [8]Brausch J M,Rand G M.A review of personal care products in the aquatic environment:environmental concentrations and toxicity[J].Chemosphere,2011,82:1518-1532.
- [9]Schultz M M,Bartell S E,Schoenfuss H L.Effects of triclosan and triclocarban,two ubiquitous environmental contaminants,on anatomy,physiology,and behavior of the fathead minnow(Pimephales promelas)[J].Arch Environ Contam Toxicol,2012,63:114-124.
- [10]马军,李圭白,李晓东.高锰酸钾除微污染效能GC/MS分析[J].中国给水排水,1999,15(5):13-15.
- [11]马军,李圭白,范苹苓,等.高锰酸钾的氧化助凝效能[J].中国给水排水,1992,8(4):4-9.
- [12]Zhang Y,Wang Y,Zhou L.Influence of excess KMnO4on the adsorption of powdered activated carbon[J].Chemical Engineering Journal,2013,226:279-285.
- [13]Behera S K,Seok-Young Oh,Hung-Suck Park.Sorption of triclosan onto activated carbon,kaolinite and montmorillonite:effects of pH,ionic strength,and humic acid[J].Journal of Hazardous Materials,2010,179:684-691.
- [14]徐勇鹏,杨静琨,王在刚.高锰酸钾氧化去除水中三氯生动力学研究[J].哈尔滨工业大学学报,2011,43(12):48-52.
- [15]Delgado L F,Charles P,Glucina K,et al.The removal of endocrine disrupting compounds,pharmaceutically activated compounds and cyanobacterial toxins during drinking water preparation using activated carbon-a review[J].Science of the Total Environment,2012,435/436:509-525.
- [16]Tomaszewski W,Gun'ko V M,Skubiszewska-Zieba J,et al.Structural characteristics of modified activated carbons and adsorption of explosives[J].Colloid Interface Science,2003,266:388-402.
- [17]Okoniewska E,Lach J,Kacprzak M,et al.The trial of regeneration of used impregnated activated carbons after manganese sorption[J].Desalination,2008,223:256-263.
- [18]Rodriguez E,Encinas A,Masa F J.Influence of resorcinol chemical oxidation on the removal of resulting organic carbon by activated carbon adsorption[J].Chemosphere,2008,70:1366-1374.
- [19]李圭白,杨艳玲,马军.KMnO4去除天然水中微量有机污染物机理探讨[J].大连铁道学院学报,1998,19(2):1-2.
- [20]Méndez-Díaz J D,Sánchez-Polo M,Rivera-Utrilla J.Effectiveness of different oxidizing agents for removing sodium dodecylbenzenesulphonate in aqueous systems[J].Water Research,2009,43:1621-1629.
- [21]Zhang Hui Chun,Huang Ching Hua.Oxidative transformation of triclosan and chlorophene by manganese oxides[J].Environ Sci Technol,2003,37:2421-2430.
- [22]Fukushima M,Tanaka S,Nakamura H S.Acid-base characterization of molecular weight fractionated humic acid[J].Talanta,1996,42:383-390.
- [23]Liu R P,Liu H J,Zhao X,et al.Treatment of dye wastewater with permanganate oxidation and in situ formed manganese dioxides adsorption:cation blue as model pollutant[J].Hazard Mater,2010(176):926-931.
- [24]Christl I,Kretzschmar R.Relating ion binding by fulvic and humic acids to chemical composition and molecular size.1.proton binding[J].Environ Sci Technol,2001,35(12):2505-2511.
- [25]Xu L,Xu C,Zhao M,et al.Oxidative removal of aqueous steroid estrogens by manganese oxides[J].Water Research,2008,42(20):5038-5044.
- [26]Zhang Zhongbo,Hu Jiangyong.Effect of environmental factors on estrogenic compounds adsorption by MIP[J].Water Air Soil Pollut,2010,210:255-264.
- [27]王丽华.水中天然腐植酸的高锰酸钾预氧化特性研究[D].西安:西安建筑科技大学,2005.
- [28]唐凯,马晓燕,李青松,等.高锰酸钾对水中17α-乙炔基雌二醇去除效果的研究[J].给水排水,2012,38(11):132-138.
- [29]Wu Qihua,Shi Honglan,Timmons Terry.Oxidative removal of selected endocrine-disruptors and pharmaceuticals in drinking water treatment systems,and identification of degradation products of triclosan[J].Science of the Total Environment,2012,439:18-25.