几种模拟土壤固相组分对平面和阻转构型PCBs的吸附作用

doi:10.11934/j.issn.1673-4831.2016.02.020

生态与农村环境学报 ›› 2016, Vol. 32 ›› Issue (2): 302-308.doi: 10.11934/j.issn.1673-4831.2016.02.020

几种模拟土壤固相组分对平面和阻转构型PCBs的吸附作用

王沛然^1,2, 王玉军², 周东美², 刘存², 方凤满¹

1. 安徽师范大学国土资源与旅游学院, 安徽芜湖 241003;
2. 中国科学院南京土壤研究所/中国科学院土壤环境与污染修复重点实验室, 江苏南京 210008

收稿日期:2015-06-03 出版日期:2016-03-25 发布日期:2016-04-01
通讯作者: 刘存,E-mail:liucun@issas.ac.cn;方凤满,E-mail:ffm1974@mail.ahnu.edu.cn E-mail:liucun@issas.ac.cn;ffm1974@mail.ahnu.edu.cn
作者简介:王沛然(1989-),男,河北邢台人,硕士生,主要从事有机污染物吸附与控制方面的研究。E-mail:wangpr1432@163.com
基金资助:
国家自然科学基金青年基金(41301535);国家自然科学基金面上基金(41371480);江苏省自然科学基金青年基金(BK20131042)

Adsorption of Co-Planar and Non-Planar Chlorobiphenyls on Simulated Soil Components

WANG Pei-ran^1,2, WANG Yu-jun², ZHOU Dong-mei², LIU Cun², FANG Feng-man¹

1. College of Territorial Resources and Tourism, Anhui Normal University, Wuhu 241003, China;
2. Key Laboratory of Soil Environment and Pollution Remediation/Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China

Received:2015-06-03 Online:2016-03-25 Published:2016-04-01

摘要/Abstract

摘要：

采用批平衡试验方法,模拟了土壤的3种主要吸附活性组分[K⁺饱和蒙脱石(K⁺-Mont)、胡敏酸-蒙脱石复合体(HA-Mont)和生物质炭(BC)]对2种构型的一氯代联苯(PCBs)[非共平面阻转类2-氯联苯(2-CB)和共平面类4-氯联苯(4-CB)]的吸附特性。结果表明:线性方程均能很好地拟合3种模拟土壤固相组分对多氯联苯的吸附,2种PCBs的吸附分配系数(K_w)从大到小依次均为BC、HA-Mont和K⁺-Mont。通过不同温度下吸附等温线的热力学分析,发现K⁺-Mont对PCBs的吸附驱动力主要为表面吸附作用和疏水作用,蒙脱石矿物的层间是重要吸附域;HA-Mont对PCBs的吸附驱动力主要为分配作用;而BC对PCBs的吸附域主要为芳香性微孔表面,表面和PCB分子间的π-π作用是吸附的主要驱动力。尽管2种PCBs的疏水性相近,共平面类4-CB在3种吸附剂上的吸附量均显著大于阻转类2-CB,原因主要为非共平面的2-CB的空间位阻效应阻碍了2-CB进入纳米尺寸的蒙脱石矿物层间或BC的微孔吸附域,有机污染物分子的空间结构对污染物在土壤中的吸附迁移过程起重要作用。

关键词: 多氯联苯类, 黏土矿物, 胡敏酸-黏土矿物复合体, 生物质炭, 吸附

Abstract:

Characteristics of the adsorption of ortho-substituted non-planar 2-chlorobiphenyl (2-CB) and non-ortho-substituted co-planar 4-chlorobiphenyl (4-CB) on three major simulated sorptive soil components:K⁺ saturated montmorillonite(K⁺-Mont), humic acid-clay mineral complexes(HA-Mont) and biochar(BC) were studied through batch equilibration experiments. Results show that the linear eqatio could be used to fit the adsorption isotherms of PCBs on all the three absorbents with the adsorption coefficient K_w being in the order of BC> HA-Mont> K⁺-Mont. Thermodynamic analysis of the adsorption isotherms as a function of temperature indicated that both surface adsorption and hydrophobic effect were the driving forces of the PCBs sorption on K⁺-Mont, while partition was the major one of the PCBs sorption on HA-Mont, for the interlayer spaces of montmorillonite are the major adsorption area, and the aromatic nanoporous surface of BC and the π-π effect between PCB molecules were the major driving forces, for the surface was the major adsorption area of BC. The sorption of 4-CB was higher than that of 2-CB on all the three absorbents despite that 2-CB and 4-CB are similar in hydrophobicity, which suggests that steric effect of the non-planar structure prevents 2-CB from accessing nano sized interlayer spaces of montmorillonite or nanopores on the surface of BC. All the findings in this study indicate that the three dimensional structures of organic pollutant molecules play an important role in their sorption and translocation in the soil.

Key words: polychlorobiphenyl, clay minerals, humic acid-clay mineral complex, biochar, adsorption

中图分类号:

X131.3

王沛然, 王玉军, 周东美, 刘存, 方凤满. 几种模拟土壤固相组分对平面和阻转构型PCBs的吸附作用[J]. 生态与农村环境学报, 2016, 32(2): 302-308.

WANG Pei-ran, WANG Yu-jun, ZHOU Dong-mei, LIU Cun, FANG Feng-man. Adsorption of Co-Planar and Non-Planar Chlorobiphenyls on Simulated Soil Components[J]. Journal of Ecology and Rural Environment, 2016, 32(2): 302-308.

参考文献

[1] 吴平霄,廖宗文.蒙脱石层间域的性质及其环境意义[J].地球科学进展,2000,15(2):184-189.
[2] 雷绍民,郝骞,熊毕华,等.蒙脱石矿物特性及开发利用前景[J].资源环境与工程,2006,20(5):565-569.
[3] LI H,SHENG G Y,TEPPEN B J.Sorption and Desorption of Pesticides by Minerals and Humic Acid-Clay Complexes[J].Soil Science Society of America Journal,2003,67(1):122-131.
[4] KILE D E,CHIOU C T.Partition of Nonpolar Organic Pollutants From Water to Soil and Sediment Organic Matters[J].Environmental Science & Technology,1995,29(5):1401-1406
[5] CHIOU C T,SHOUP T D.Soil Sorption of Organic Vapors and Effects of Humidity on Sorptive Mechanism and Capacity[J].Environmental Science & Technology,1985,19(12):1196-1200.
[6] LH H,TEPPENB J,JOHNSTON C T,et al.Thermo Dynamics of Nitroaromatic Compound Adsorption From Water by Smectite Clay[J].Environmental Science & Technology,2004,38(20):5433-5442.
[7] LIU C,LI H,TEPPEN B J,et al.Mechanisms Associated With the High Adsorption of Dibenzo-p-Dioxin From Water by Smectite Clays[J].Environmental Science & Technology,2009,43(8):2777-2783.
[8] LI H,TEPPEN B J,LAIRD D A,et al.Effects of Increasing Potassium Chloride and Calcium Chloride Ionic Strength on Pesticide Sorption by Potassium- and-Calcium-Smectite[J].Soil Science Society of America Journal,2006,70(6):1889-1895.
[9] ZHANG J Y,ZHU D Q,YU H X.Sorption of Aromatic Compounds to Clay Mineral and Model Humic Substance-Clay Complex:Effect of Solute Structure and Exchange Cation[J].Journal of Environment Quality,2008,37(3):817-823.
[10] 石钰婷.模拟有机-矿质复合体对TCE的吸附实验研究[D].北京:中国地质大学,2012.
[11] BANSALO P.Thermo Dynamics of Equilibrium Adsorption of Antibiotics by Clay Minerals and Humic Acid-Clay Complexes[J].National Academy Science Letters-India.2012,35(2):109-114.
[12] GAO J,PEDERSEN J A.Sorption of Sulfonamide Antimicrobial Agents to Humic Acid-Clay Complexes[J].Journal of Environmental Quality,2010,39(1):228-235.
[13] HALE S E,LEHMAN N J,RUTHERFOR D D,et al.Quantifying the Total and Bioavailable Polycyclic Aromatic Hydrocarbons and Dioxins in Biochars[J].Environmental Science & Technology,2012,46(5):2830-2838.
[14] MOHAN D,SARSWA T A,YONG S,et al.Organic and Inorganic Contaminants Removal From Water With Biochar,a Renewable,Low Cost and Sustainable Adsorbent:A Critical Review[J].Bioresource Technology,2014,160(Suppl:1):191-202.
[15] 陈宝梁,周丹丹,朱利中,等.生物炭质吸附对水中有机污染物的吸附作用及机理[J].中国科学B辑:化学,2008,38(6):530-537.
[16] 王宁,侯艳伟,彭静静,等.生物碳吸附有机污染物的研究进展[J].环境化学,2012,31(3):287-295.
[17] 邢颖,吕永龙,刘文彬,等.中国部分水域沉积物中多氯联苯污染物的空间分布、污染评价及影响因素分析[J].环境科学,2006,27(2):228-234.
[18] ANDERSSON P L,HAGLUN D P,TYSKLIND M.The Internal Barriers of Rotation for the 209 Polychlorinated Biphenyls[J].Environmetal Science & Pollutant Research,1997,4(2):75-81.
[19] SHIU W Y,MACKA Y D.A Critical Review of Aqueous Solubilities,Vapor Pressures,Henry Law Constants,and Octanol-Water Partition Coefficients of the Polychlorinated Biphenyls[J].Journal of Physical and Chemical,1986,15(2):911-929.
[20] HAWKER D W,CONNELL D W.Octanol-Water Partition Coefficients of Polychlorinated Biphenyl Congengers[J].Environmental Science & Technology,1988,22(4):382-387.
[21] ARROYOL L J,LI H,TEPPEN B J,et al.A Simple Method for Partial Purification of Reference Clays[J].Clays and Clay Minerals,2005,53(5):511-519.
[22] FANG G D,ZHU C Y,DIONYSIOS D,et al.Mechanism of Hydroxyl Radical Generation From Biochar Suspensions:Implications to Diethyl Phthalate Degradation[J].Bioresource Technology,2015,176:210-217.
[23] NKEDI-KIZZA P,RAO P S C,HORNSBY A G.Influence of Organic Cosolvents on Sorption of Hydrophobic Organic Chemicals by Soils[J].Environmental Science & Technology,1985,19(10):975-979.
[24] CHIOU C T.Partition and Adsorption of Organic Contaminants in Environmental Systems[M].New Jersey,USA:John Wiley & Sons,2002:133-138.
[25] SU Y H,ZHOU Y G,SHENG G Y,et al.Linear Adsorption of Nonionic Organic Compounds From Water on Hydrophilic Minerals:Silica and Alumina[J].Environmental Science & Technology,2006,40(22):6969-6954.
[26] MADER B T,GOSS K U,EISENREICH S J.Sorption of Nonionichydrophobic Organic Chemicals to Mineral Surfaces[J].Environmental Science & Technology,1997,31(4):1079-1086.
[27] SEKI Y,YURDAKOC K.Adsorption of Promethazine Hydrochloride With KSF Montmorillonite[J].Adsorption,2006,12(1):89-100.
[28] YU Y,ZHUANG Y Y,WANG Z H.Adsorption of Water Soluble Dye Onto Functionalized Resin[J].Journal of Colloid and Interface Science,2001,242(2):288-293.
[29] 周丹丹.生物碳质对有机污染物的吸附作用及机理调控[D].杭州:浙江大学,2008.
[30] BELES S B,RIFAI H S,RODRIGUES D F.Efficiency of Carbonaceous Materials for Sorbing Polychlorinated Biphenyls From Aqueous Solution[J].Environmental Science & Technology,2014,48(17):10372-10379.
[31] CORNELISSEN G,GUSTAFSSON O.Sorption of Phenanthrene to Environmental Black Carbon in Sediment With and Without Organic Matter and Native Sorbates[J].Environmental Science & Technology,2004,38(1):148-155.

几种模拟土壤固相组分对平面和阻转构型PCBs的吸附作用

Adsorption of Co-Planar and Non-Planar Chlorobiphenyls on Simulated Soil Components

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	曹俊敏, 李鑫, 徐德福. 骨炭对地下水中氟的吸附及去除能力研究[J]. 生态与农村环境学报, 2019, 35(8): 1064-1070.
[2]	邵爱云, 程德义, 代静玉, 杜琪雯, 杜超, 黄兆琴. 巯基改性稻壳炭对水中Cd²⁺的吸附特性[J]. 生态与农村环境学报, 2019, 35(8): 1071-1079.
[3]	常会庆, 朱晓辉, 郑彩杰, 焦常锋, 王启震, 吴杰. 颗粒无烟煤活性炭去除水体中低浓度磷酸盐研究[J]. 生态与农村环境学报, 2019, 35(8): 1058-1063.
[4]	王丽, 胡苗, 徐建军. 虾壳生物质炭对水体中Cr⁶⁺的吸附[J]. 生态与农村环境学报, 2019, 35(8): 1080-1088.
[5]	王恒煦, 刘泽平, 王志刚, 徐伟慧, 郭茹鑫. 3株芽孢杆菌在水稻根际定殖促生及其在土壤中的存活[J]. 生态与农村环境学报, 2019, 35(7): 892-899.
[6]	马洁晨, 汪新亮, 张学胜, 李玉成, 郑刘根, 王宁. 不同热解温度龙虾壳生物炭特征及对Zn²⁺的吸附机制[J]. 生态与农村环境学报, 2019, 35(7): 900-908.
[7]	干方群, 徐子昊, 杨一帆, 秦品珠, 唐荣, 杭小帅. 高岭土对畜禽废水中磷的净化效果及其费效分析[J]. 生态与农村环境学报, 2019, 35(6): 795-800.
[8]	王慧, 唐杉, 韩上, 李敏, 武际, 程文龙, 吴萍萍. 磷对镉离子在针铁矿及针铁矿-胡敏酸复合体表面吸附的影响[J]. 生态与农村环境学报, 2019, 35(5): 659-667.
[9]	解宇峰, 程德义, 石佳奇, 祝欣, 李志琳, 王磊. 高锰酸钾改性小麦秸秆吸附Cd²⁺的性能研究[J]. 生态与农村环境学报, 2019, 35(5): 668-674.
[10]	赵震杰, 方迪, 董颖, 徐仁扣, 周立祥, 姜军. 秸秆生物质炭对淹水砖红壤中Cu²⁺钝化效果的影响[J]. 生态与农村环境学报, 2018, 34(7): 636-642.
[11]	汪婵娟, 熊治廷, 徐仲瑞, 刘荣相. 有色金属矿区植物根际耐镉菌的分离鉴定与镉吸附特性[J]. 生态与农村环境学报, 2018, 34(5): 448-455.
[12]	申磊, 荆延德, 孙小银, 郝郝, 曹永强. 动植物来源生物炭对水体中Cd²⁺的吸附特性[J]. 生态与农村环境学报, 2018, 34(4): 363-370.
[13]	李三姗, 王楚楚, 何晓云, 任丽曼, 郭琼, 杨柳燕. 改性水生植物生物炭对低浓度硝态氮的吸附特性[J]. 生态与农村环境学报, 2018, 34(4): 356-362.
[14]	张文, 吕欣田, 韩睿, 胡志新. 2种改性生物炭对水体硝态氮的吸附特性[J]. 生态与农村环境学报, 2018, 34(3): 253-259.
[15]	庄硕, 陈鸿洋, 张明, 崔军, 方长明. 生物质炭施加对新成水稻土碳组分及其分解的影响[J]. 生态与农村环境学报, 2018, 34(11): 1010-1018.