装潢垃圾-土壤共处置体系对污染物的去除作用研究
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摘要
利用某实际污染场地土壤和实验室模拟污染土壤,开展装潢垃圾-土壤共处置体系对污染物无害化、稳定化作用效果的批次试验,采用表观去除率和真实去除率对该共处置体系对土壤中污染物的去除效果进行评估。结果表明:该共处置体系对有机污染物和重金属均具有一定的去除效果,反应进行到28 d时,总石油烃、苯酚类、苯系物、菲有机污染物的表观去除率分别为73.7%、79.7%、82.1%和67%,除乐果外大部分有机污染物的真实去除率均在40%～60%之间;5种重金属的表观去除率均在68%以上,其中可交换态和碳酸盐结合态的重金属含量在试验后期接近于零;该共处置体系中羟基(-OH)官能团、木质素、吸附-降解作用和碱性环境是实现污染物无害化的主要因素。该研究可为固体废物消纳和共处置提供思路和技术支撑。
This paper applies batch tests to investigating the harmless stabilization effect of pollutant removal through co-disposal of decorating waste and contaminated site soil/lab-contaminated soil,and applies the 28-day apparent removal rate and the true removal rate to evaluation.The results show that the system has certain removal effects on organic pollutants and heavy metals.The 28-day apparent removal rates of petroleum hydrocarbons,phenols,benzenes and phenanthrene are 73.7%,79.7%,82.1% and 67%,respectively.Real removal rate ranged between 40% and 60% except for Rogor.More than 68% of all the five heavy metals has been decreased,while the exchangeable fraction and carbonates bound fraction was hardly detected in the extract.The alkaline environment,adsorb-degradation and lignin should be the main contributors.The study can provide ideas and technical support for solid waste cancellation and co-disposal.
This paper applies batch tests to investigating the harmless stabilization effect of pollutant removal through co-disposal of decorating waste and contaminated site soil/lab-contaminated soil,and applies the 28-day apparent removal rate and the true removal rate to evaluation.The results show that the system has certain removal effects on organic pollutants and heavy metals.The 28-day apparent removal rates of petroleum hydrocarbons,phenols,benzenes and phenanthrene are 73.7%,79.7%,82.1% and 67%,respectively.Real removal rate ranged between 40% and 60% except for Rogor.More than 68% of all the five heavy metals has been decreased,while the exchangeable fraction and carbonates bound fraction was hardly detected in the extract.The alkaline environment,adsorb-degradation and lignin should be the main contributors.The study can provide ideas and technical support for solid waste cancellation and co-disposal.
引文
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[23]Peng J F,Song Y J,Yuan P,et al.The remediation of heavy metals contaminated sediment[J].Journal of Hazardous Materials,2009,161(2/3):633-640.
[24]雍正,罗泽娇,宋萌萌.武汉某退役电镀车间场地土壤重金属污染及形态分析[J].安全与环境工程,2014,21(3):46-50.
[2] 罗启清,王少鹏,王英辉,等.南宁市市郊农业土壤中重金属元素含量的多元统计分析[J].安全与环境工程,2018,25(2):81-87.
[3] 潘栋宇,侯梅芳,刘超男,等.多环芳烃污染土壤化学修复技术的研究进展[J].安全与环境工程,2018,25(3):54-60.
[4] 刘春英,张玉栋.浅析我国环境污染现状[J].现代企业文化,2010,27(9):158-158.
[5] Gao X F,Gu Y L,Huang S,et al.Comparison of alternative remediation technologies for recycled gravel contaminated with heavy metals[J].Waste Management & Research,2015,33(11):1005-1014.
[6] Zhao Y C,Huang S.Pollution Control and Resource Recovery-Industrial Construction and Demolition Waste[M].United Kingdom:Elsevier Science & Technology,2016.
[7] Bbtera S,Trapp S,Astrup T F,et al.Soil retention of hexavalent chromium released from construction and demolition waste in a road-base-application scenario[J].Journal of Hazardous Materials,2015,298:361-367.
[8] Hasan U,Chegenizadeh A,Audihardjo B M,et al.Experimental evaluation of construction waste and ground granulated blast furnace slag as alternative soil stabilisers[J].Geotechnical and Geological Engineering,2016,34(6):1707-1722.
[9] Henzinger C,Heyer D.Soil improvement using recycled aggregates from demolition waste[J].Proceedings of the Institution of Civil Engineers-Ground Improvement,2017,171(2):74-81.
[10]周莉华.某污染场地遗留建筑物处置方法实例[J].江西化工,2017,38(6):118-120.
[11]ITRC(Interstate Technology & Regulatory Council).Green and Sustainable Remediation:A Practical Framework.GSR-2[EB/OL].[2018-9-14].https://www.itrcweb.org/GuidanceDocuments/GSR-2.pdf.
[12]Hou D Y,Ding Z Y,Li G H,et al.A sustainability assessment framework for agricultural land remediation in China[J].Land Degradation & Development,2017,29(4):1005-1018.
[13]Tessier A,Campbell P G,Bisson M.Sequential extraction procedure for the speciation of particulate trace metals[J].Analytical Chemistry,1979,51(7):844-851.
[14]章有知.黑麦草与石油污染土壤的相互作用效应研究[D].长春:东北师范大学,2010.
[15]程金平,郑敏,张兰英,等.苯系化合物好氧生物降解性实验研究[J].干旱环境监测,2002,16(2):107-109.
[16]任文杰,周启星,王美娥.BTEX 在土壤中的环境行为研究进展[J].生态学杂志,2009,28(8):1647-1654.
[17]Chapman R,Cole C.Observations on the influence of water and soil pH on the persistence of insecticides[J].Journal of Environmental Science & Health Part B,1982,17(5):487-504.
[18]匡科,袁永钦,林浩添.水源水中乐果污染物应急处理工艺的试验研究[J].供水技术,2008,2(6):36-38.
[19]秋增昌,王海毅.木质素的应用研究现状与进展[J].西南造纸,2004,33(3):29-33.
[20]梁重山,刘丛强,党志.现代分析技术在土壤腐殖质研究中的应用[J].土壤,2001,33(3):154-158.
[21]Yves U.生物炭对中国西北部的黄土壤中吸附苯甲腈和阿特拉津行为的影响研究[D].兰州:兰州交通大学,2016.
[22]Walker D J,Clemente R,Bernal M P.Contrasting effects of manure and compost on soil pH,heavy metal availability and growth of Chenopodium album L.in a soil contaminated by pyritic mine waste[J].Chemosphere,2004,57(3):215-224.
[23]Peng J F,Song Y J,Yuan P,et al.The remediation of heavy metals contaminated sediment[J].Journal of Hazardous Materials,2009,161(2/3):633-640.
[24]雍正,罗泽娇,宋萌萌.武汉某退役电镀车间场地土壤重金属污染及形态分析[J].安全与环境工程,2014,21(3):46-50.