刘楚琛^1,2,3,,
阎秀兰^1,2,
刘琼枝^1,2,3,
邵金秋^1,2,3,
廖晓勇^1,2
1.中国科学院地理科学与资源研究所，北京 100101
2.中国科学院陆地表层格局与模拟重点实验室，北京 100101
3.中国科学院大学，北京 100049
基金项目: 北京市科技计划项目(D16110900470000)

Oxidative degradation of dichlorophenol and trichlorophenol in soils by Fenton reagent and activated persulfate

LIU Chuchen^1,2,3,,
YAN Xiulan^1,2,
LIU Qiongzhi^1,2,3,
SHAO Jinqiu^1,2,3,
LIAO Xiaoyong^1,2
1.Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2.Key Laboratory of Land Surface Pattern and Simulation, Chinese Academy of Sciences, Beijing 100101, China
3.University of Chinese Academy of Sciences, Beijing 100049, China

-->

摘要
HTML全文
图(0)表(0)
参考文献(47)
相关文章
施引文献
资源附件(0)
访问统计

摘要:氯酚类物质（chlorophenols, CPs）在环境介质中广泛存在且具有很强环境毒性。为探究化学氧化修复场地氯酚类污染的可行性，通过室内实验、模拟搅拌实验、现场中试，开展应用Fenton试剂和活化过硫酸钠氧化降解土壤CPs的研究。结果表明，化学氧化可有效降解土壤中的CPs，在氧化剂用量和CPs总量摩尔比为15:1时，CaO活化Na2S2O8能高效降解土壤中的二氯酚（2,4-DCP）和三氯酚（2,4,6-TCP），室内实验和现场中试的去除率均达90%以上，处理后的2,4-DCP和2,4,6-TCP浓度均低于《展览会用地土壤环境质量评价标准》（HJ 350-2007）A类标准限值。Fenton试剂在室内实验中降解率达90%以上，但现场中试对2,4-DCP和2,4,6-TCP的降解率仅为66.1%、23.8%，处理后2,4-DCP浓度仍超过A类标准限值1倍以上。此外，在修复过程中，约70%的2,4-DCP、2,4,6-TCP会向液相转移，因此，需要关注修复系统引入水后污染物向液相中的转移可能造成的二次污染。研究结果可为氯酚类污染土壤的修复提供新思路，并为实际工程应用提供理论依据。
关键词: 土壤修复/
Fenton试剂/
活化过硫酸钠/
2,4-二氯酚/
2,4,6-三氯酚

Abstract:Chlorophenols (CPs) widely exist in environment and have strong environmental toxicity. In this paper, laboratory experiments, simulating stirring studies and field pilot tests were conducted to evaluate the efficiency of Fenton and activated persulfate in removal of 2,4-DCP and 2,4,6-TCP from soils through oxidative degradation. The results showed that chemical oxidation could effectively degrade CPs in soils. When the molar ratio of oxidant and total CPs concentration was 15:1, 2,4-DCP and 2,4,6-TCP in soils could be degraded effectively by CaO-activated persulfate, and the removal efficiencies were above 90% in all laboratory tests and field pilot experiments. The residual concentrations of 2,4-DCP and 2,4,6-TCP were lower than the class A standard limit values of Standard of Soil Quality Assessment for Exhibition Sites (HJ 350-2007). Fenton had a removal efficiency of 90% in laboratory tests, but it was relatively low at field pilot tests, which was 66.1%, 23.8% for 2,4-DCP and 2,4,6-TCP, respectively. The residual concentration of 2,4-DCP was still more than double of the class A standard limit value. It was also found that during the remediation about 70% of 2,4-DCP and 2,4,6-TCP in soil were transferred to aqueous phase. Therefore when introducing water into remediation system we need pay attention to the secondary pollution caused by the transfer of pollutants into the aqueous phase. This research provides new approaches for the remediation of CPs contaminated soil, and sets up theoretical basis for practical engineering application.
Key words:soil remediation/
Fenton reagent/
activated persulfate/
2,4-dichlorophenol/
2,4,6-trichlorophenol.

[1]	刘金林, 胡建英, 万袆, 等. 海河流域和渤海湾沉积物和水样中五氯酚的分布[J]. 环境化学,2006,25(5):539-542
[2]	王旭刚, 孙丽蓉. 五氯酚的污染现状及其转化研究进展[J]. 环境科学与技术,2009,32(8):93-100
[3]	冯敏. 洞庭湖区氯酚类污染物的分布特征、生态效应及健康风险评估研究[D]. 北京: 中国地质大学(北京),2014
[4]	NASCIMENTO N R D, NICOLA S M C, REZENDE M O O, et al.Pollution by hexachlorobenzene and pentachlorophenol in the coastal plain of Sao Paulo state, Brazil[J].Geoderma,2004,121:221-232 10.1016/j.geoderma.2003.11.008
[5]	孙倩. 氯酚和重金属污染土壤的类Fenton修复研究[D]. 武汉: 华中科技大学,2013
[6]	PERSSON Y, LUNDSTEDT S, OBERG L, et al.Levels of chlorinated compounds (CPs, PCPPs, PCDEs, PCDFs and PCDDs) in soils at contaminated sawmill sites in Sweden[J].Geoderma,2004,121:221-232 10.1016/j.chemosphere.2006.05.052
[7]	LIU Y, WEN B, SHAN X Q.Determination of pentachlorophenol in wastewater irrigated soils and incubated earthworms[J].Talanta,2006,69:1254-1259 10.1016/j.talanta.2005.12.051
[8]	王晓燕. 生物法和物理法修复受2,4-二氯酚污染土壤的对比研究[D]. 武汉: 武汉科技大学,2008
[9]	朱琨, 王海涛, 谢春娟, 等.UV-H2O2系统对水中2,4-二氯酚氧化降解研究[J]. 工业用水与废水,2006,37(1):27-31
[10]	孙倩, 周海燕, 曹梦华, 等.ZVI/EDDS/Air体系降解水中2,4-二氯酚的研究[J]. 环境科学,2012,33(11):3833-3839
[11]	LANGWALDT J H, PUHAKKA J A.The oxidation, fate and effects of iron during on-site bioremediation of groundwater contaminated by a mixture of polychlorophenols[J].Biodegradation,2002,13(5):317-328 10.1023/A:1022323622818
[12]	LI R, JIN X Y, MEGHARAJ M, et al.Heterogeneous Fenton oxidation of 2,4-dichlorophenol using iron-based nanoparticles and persulfate system[J].Chemical Engineering Journal,2015,264:587-594 10.1016/j.cej.2014.11.128
[13]	MARC P T, VERONICA G M, MIGUEL A B, et al.Degradation of chlorophenols by means of advanced oxidation processes: A general review[J].Applied Catalysis B: Environmental,2004,47(4):219-256 10.1016/j.apcatb.2003.09.010
[14]	KARCI A, IDIL A A, TUGBA O H, et al.Transformation of 2,4-dichlorophenol by H2O2/UV-C, Fenton and photo-Fenton processes: Oxidation products and toxicity evolution[J].Journal of Photochemistry and Photobiology A: Chemistry,2012,230:65-73 10.1016/j.jphotochem.2012.01.003
[15]	孙超. 基于纳米磁性材料活化过硫酸盐技术修复2,4-二氯酚污染地下水的实验研究[D]. 长春: 吉林大学,2016
[16]	SEOL Y, JAVANDEL I.Citric acid-modified Fenton’s reaction for the oxidation of chlorinated enthylenes in soil solution systems[J].Chemosphere,2008,72:537-542 10.1016/j.chemosphere.2008.03.052
[17]	ZHAO D, LIAO X Y, YAN X L, et al.Effect and mechanism of persulfate activated by different methods for PAHs removal in soil[J].Journal of Hazardous Materials,2013,254:228-235 10.1016/j.jhazmat.2013.03.056
[18]	国家质量监督检验检疫总局, 国家环境保护总局. 展览会用地土壤环境质量评价标准(暂行): HJ 350-2007[S]. 北京: 中国环境科学出版社,2007
[19]	赵丹, 阎秀兰, 廖晓勇, 等. 不同化学氧化剂对焦化污染场地苯系物的修复效果[J]. 环境科学,2011,32(3):849-856
[20]	WU X L, GU X G, LU S G, et al.Degradation of trichloroethylene in aqueous solution by persulfate activated with citric acid chelated ferrousion[J].Chemical Engineering Journal,2014,255:585-592 10.1016/j.cej.2014.06.085
[21]	ZHANG Y Q, XIE X F, HUANG S B, et al.Effect of chelating agent on oxidation rate of aniline in ferrous ion activated persulfate system at neutral pH[J].Journal of Central South University of Technology,2014,21:1441-1447 10.1007/s11771-014-2083-4
[22]	环境保护部, 国家环境保护总局科技标准司. 土壤和沉积物酚类化合物的测定 气相色谱法: HJ 703-2014[S]. 北京: 中国环境科学出版社,2014
[23]	TEMEL N K, SOKMEN M.New catalyst systems for the degradation of chlorophenols[J].Biodegradation,2011,281:209-214 10.1016/j.desal.2011.07.066
[24]	中国建筑科学研究院, 中华人民共和国建设部. 建筑地基基础设计规范: GB50007-2011[S]. 北京: 中国建筑工业出版社,2012
[25]	SRIVASTAVA V J, HUDSON J M, CASSIDY D P.Achieving synergy between chemical oxidation and stabilization in a contaminated soil[J].Chemosphere,2016,154:590-598 10.1016/j.chemosphere.2016.04.010
[26]	SRIVASTAVA V J, HUDSON J M, CASSIDY D P.In situ solidification and in situ chemical oxidation combined in a single application to reduce contaminant mass and leachability in soil[J].Journal of Environmental Chemical Engineering,2016,4:2857-2864 10.1016/j.jece.2016.05.032
[27]	赵进英, 张耀斌, 全燮, 等. 加热和亚铁离子活化过硫酸钠氧化降解4-CP的研究[J]. 环境科学,2010,31(5):1233-1238
[28]	SRA K S.Persulfate persistence and treatability of gasoline compounds[D].Waterloo, Ontario, Canada: University of Waterloo, 2010
[29]	张宝梅. 高级氧化法在室温离子液体中降解对氯苯酚的研究[D]. 广州: 华南理工大学,2013
[30]	RODRIGUEZ S, VASQUEZ L, COSTA D, et al.Oxidation of orange G by persulfate activated by Fe(II), Fe(III) and zero valent iron(ZVI)[J].Chemosphere,2014,101:86-92 10.1016/j.chemosphere.2013.12.037
[31]	LIANG C, GUO Y Y.Mass transfer and chemical oxidation of naphthalene particles with zerovalent iron activated persulfate[J].Environmental Science & Technology,2010,44(21):8203-8208 10.1021/es903411a
[32]	罗茜, 查金苗, 雷炳莉, 等. 三种氯代酚的水生态毒理和水质基准[J] .环境科学学报,2009,29(11):2241-2249
[33]	孙红文, 张闻. 疏水性有机污染物在土壤/沉积物中的赋存状态研究[J]. 环境化学,2011,30(1):231-240
[34]	王贺飞. 基于过氧化钙的类-Fenton技术氧化去除地下水中2,4-二氯酚实验研究[D]. 长春: 吉林大学,2016
[35]	曾华冲, 杨利芝, 徐宏勇, 等.Fenton试剂氧化法修复2,4-二氯酚污染土壤的研究[J]. 生态环境,2008,17(1):221-226
[36]	中华人民共和国建设部标准定额研究所, 中华人民共和国建设部给水排水产品标准化技术委员会. 城市供水水质标准: CJ/T 206-2005[S]. 北京: 中国标准出版社,2005
[37]	国家质量监督检验检疫总局, 国家环境保护总局科技标准司. 地表水环境质量标准: GB 3838-2002[S]. 北京: 中国环境科学出版社,2002
[38]	MUNOZ M, PEDRO Z M D, CASAS J A, et al.Assessment of the generation of chlorinated byproducts upon Fenton-like oxidation of chlorophenols at different conditions[J].Journal of Hazardous Materials,2011,190:993-1000 10.1016/j.jhazmat.2011.04.038
[39]	ZIMVRON J A, REARDON K F.Fenton’s oxidation of pentachlorophenol[J].Water Research,2009,43(7):1831-1840 10.1016/j.watres.2009.01.024
[40]	赵进英. 零价铁/过硫酸钠体系产生硫酸根自由基氧化降解氯酚的研究[D]. 大连: 大连理工大学,2010
[41]	DETOMASO A, LOPEZ A, LOVECCHIO G, et al.Practical applications of the Fenton reaction to the removal of chlorinated aromatic pollutants[J].Environmental Science & Pollution Research International,2003,10(6):379-384 10.1065/espr2003.06.155
[42]	杨硕, 李广贺. 地下水修复中缓释氧化剂的制备与缓释性能评价[C]//中国环境科学学会. 中国环境科学学会学术年会(2013)浦华环保优秀论文集. 昆明,2013:58-63
[43]	MUNDLE K, REYNOLDS D A, WEST M R, et al.Concentration rebound following in situ chemical oxidation in fractured clay[J].Ground Water,2007,45(6):692-702 10.1111/j.1745-6584.2007.00359.x
[44]	LIANG C J, BRUELL C J, MARLEY M C, et al.Themally activated persulfate oxidation of trichloroethylene (TCE) and 1,1,1-trichloroethane (TCA) in aqueous systems and soil slurries[J].Soil and Sediment Contamination,2003,12(2):207-228 10.1080/713610970
[45]	CUYPERS C, GROTENHUIS T, JOZIASSE J, et al.Rapid persulfate oxidation predicts PAH bioavailability in soils and sediments[J].Environmental Science & Technology,2000,34(10):2057-2063 10.1021/es991132z
[46]	STRUSE A M, SIEGRIST R L, DAWSON H E, et al.Diffusive transport of permanganate during in situ oxidation[J].Journal of Environmental Engineering,2002,128(4):327-334 10.1061/(ASCE)0733-9372(2002)128:4(327)
[47]	MCGUIRE T M, MCDADE J M, NEWELL C J.Performance of DNAPL source depletion technologies at 59 chlorinated solvent-impacted sites[J].Ground Water Monitoring & Remediation,2006,26(1):73-84 10.1111/j.1745-6592.2006.00054.x

PDF下载( 428 KB)XML下载导出引用Turn off MathJax -->
点击查看大图

计量

文章访问数:854
HTML全文浏览数:444
PDF下载数:324
施引文献:0

出版历程

刊出日期:2018-06-18

---

-->

Fenton试剂和活化过硫酸钠氧化降解土壤中的二氯酚和三氯酚

刘楚琛^1,2,3,,
阎秀兰^1,2,
刘琼枝^1,2,3,
邵金秋^1,2,3,
廖晓勇^1,2
1.中国科学院地理科学与资源研究所，北京 100101
2.中国科学院陆地表层格局与模拟重点实验室，北京 100101
3.中国科学院大学，北京 100049
基金项目: 北京市科技计划项目(D16110900470000)
关键词: 土壤修复/
Fenton试剂/
活化过硫酸钠/
2,4-二氯酚/
2,4,6-三氯酚
摘要:氯酚类物质（chlorophenols, CPs）在环境介质中广泛存在且具有很强环境毒性。为探究化学氧化修复场地氯酚类污染的可行性，通过室内实验、模拟搅拌实验、现场中试，开展应用Fenton试剂和活化过硫酸钠氧化降解土壤CPs的研究。结果表明，化学氧化可有效降解土壤中的CPs，在氧化剂用量和CPs总量摩尔比为15:1时，CaO活化Na2S2O8能高效降解土壤中的二氯酚（2,4-DCP）和三氯酚（2,4,6-TCP），室内实验和现场中试的去除率均达90%以上，处理后的2,4-DCP和2,4,6-TCP浓度均低于《展览会用地土壤环境质量评价标准》（HJ 350-2007）A类标准限值。Fenton试剂在室内实验中降解率达90%以上，但现场中试对2,4-DCP和2,4,6-TCP的降解率仅为66.1%、23.8%，处理后2,4-DCP浓度仍超过A类标准限值1倍以上。此外，在修复过程中，约70%的2,4-DCP、2,4,6-TCP会向液相转移，因此，需要关注修复系统引入水后污染物向液相中的转移可能造成的二次污染。研究结果可为氯酚类污染土壤的修复提供新思路，并为实际工程应用提供理论依据。

English Abstract

全文HTML

--> --> --> 参考文献 (47)