江西省典型水稻土对镉、铅吸附解吸特性和环境风险评估（英文）
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摘要
[目的]研究江西省典型水稻土对镉、铅的吸附解吸特性。[方法]以江西省2种典型水稻土(潜育型、潴育型)为试材,采用振荡平衡法研究镉、铅在水稻土中的单一和竞争吸附-解吸情况,并利用吸附分配系数对镉和铅在水稻土中的环境风险进行评估。[结果]等比例条件下两种水稻土对镉和铅离子的吸附量为铅大于镉,且潴育型水稻土的吸附能力明显大于潜育型,但两种水稻土对镉和铅离子的解吸量则为镉大于铅,且解吸能力为潜育型水稻土大于潴育型;与单一体系相比,竞争条件下水稻土对镉和铅离子的吸附量均明显降低,但解吸率则明显升高;水稻土中镉污染的潜在环境风险大于铅,镉和铅离子的环境风险随p H升高而减小,且镉和铅共存时明显增大。[结论]研究表明在镉和铅离子共存于水稻土时,与铅污染相比,应重视和尽量避免镉的污染。
[Objective] This study aimed to investigate the adsorption and desorption characteristics of cadmium and lead in typical paddy soils of Jiangxi Province.[Method] Gleyed paddy soil and waterloggogenic paddy soil were collected from Jiangxi Province and used as experimental materials to investigate single and competitive adsorption and desorption behaviors of cadmium and lead by batch equilibrium method.The environmental risk of the presence of cadmium and lead in paddy soils was assessed using distribution coefficients.[Result] Under equal ratio conditions,the adsorption capacity of lead by two types of paddy soils was higher than that of cadmium,and the adsorption rate in waterloggogenic paddy soil was higher than that in gleyed paddy soil.The desorption capacity of cadmium by two types of paddy soils was higher than that of lead,and the desorption rate in gleyed paddy soil was higher than that in waterloggogenic paddy soil.Under competitive conditions,the adsorption capacity of cadmium and lead by paddy soils was significantly reduced compared with single ion system,while the desorption rate was remarkably improved.The potential environmental risk of cadmium contamination was greater than that of lead in paddy soils.Moreover,environmental risks of cadmium and lead were reduced with the increase of p H,which increased significantly under the coexistence state.[Conclusion] In the coexistence of cadmium and lead,cadmium contamination should be controlled and avoided compared with lead contamination in paddy soils.
[Objective] This study aimed to investigate the adsorption and desorption characteristics of cadmium and lead in typical paddy soils of Jiangxi Province.[Method] Gleyed paddy soil and waterloggogenic paddy soil were collected from Jiangxi Province and used as experimental materials to investigate single and competitive adsorption and desorption behaviors of cadmium and lead by batch equilibrium method.The environmental risk of the presence of cadmium and lead in paddy soils was assessed using distribution coefficients.[Result] Under equal ratio conditions,the adsorption capacity of lead by two types of paddy soils was higher than that of cadmium,and the adsorption rate in waterloggogenic paddy soil was higher than that in gleyed paddy soil.The desorption capacity of cadmium by two types of paddy soils was higher than that of lead,and the desorption rate in gleyed paddy soil was higher than that in waterloggogenic paddy soil.Under competitive conditions,the adsorption capacity of cadmium and lead by paddy soils was significantly reduced compared with single ion system,while the desorption rate was remarkably improved.The potential environmental risk of cadmium contamination was greater than that of lead in paddy soils.Moreover,environmental risks of cadmium and lead were reduced with the increase of p H,which increased significantly under the coexistence state.[Conclusion] In the coexistence of cadmium and lead,cadmium contamination should be controlled and avoided compared with lead contamination in paddy soils.
引文
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[3]DU B(杜斌),ZHAO XL(赵秀兰).Adsorption and desorption characteristics of cadmium in three purplish paddy soils(紫色水稻土对镉吸附解吸特性的研究)[J].Journal of Anhui Agricultural Sciences(安徽农业科学),2012,40(14):8139-8142.
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[6]LIU P(刘平),XU MG(徐明岗),SONG ZG(宋正国).Effects of accompanying anions on adsorption-desorption of Pb and Cd by two typical soils of China(伴随阴离子对土壤中铅和镉吸附-解吸的影响)[J].Journal of Agro-Environment Science(农业环境科学学报),2007,26(1):252-256.
[7]LIU Y(刘妍),ZHU XL(朱晓龙),DING XQ(丁咸庆),et al.Characteristics of Cd and Pb adsorption-desorption in paddy soils developed from various parent materials and its impacting factors(不同母质发育水稻土对Cd,Pb吸附解吸特性及其影响因子分析)[J].Research of Agricultural Modernization(农业现代化研究),2014,35(5):663-667.
[8]JIANG H,LI T Q,HAN X,et al.Effects of p H and low molecular weight organic acids on competitive adsorption and desorption of cadmium and lead in paddy soils[J].Environmental Monitoring and Assessment,2012,184(10):6325-6335.
[9]LI TQ,JIANG H,YANG X,et al.Competitive sorption and desorption of cadmium and lead in paddy soils of eastern China[J].Environmental Earth Sciences,2013,68(6):1599-1607.
[10]ZHANG FJ,OU XX,CHEN SH,et al.Competitive adsorption and desorption of copper and lead in some soil of North China[J].Frontiers of Environmental Science&Engineering,2012,6(4):484-492.
[11]WANG L(王岚),WANG YP(王亚平),XU CX(徐春雪),et al.Competitive adsorption of cadmium and lead in paddy soils:a case study of paddy soils in Changsha-Zhuzhou-Xiangtan area of Hunan Province(水稻土中重金属元素Cd,Pb的竞争吸附—以长株潭地区水稻土为例)[J].Geological Bulletin of China(地质通报),2012,31(4):601-607.
[12]XU RK,ZHAO A Z.Effect of biochars on adsorption of Cu(II),Pb(II)and Cd(II)by three variable charge soils from southern China[J].Environmental Science and Pollution Research,2013,20(12):8491-8501.
[13]FAN YC(范业成),YE HZ(叶厚专).Fertilizer characters and management of red soil in Jiangxi(江西红壤性水稻土肥力特性及其管理)[J].Acta Agriculturae Jiangxi(江西农业学报),1998,10(3):71-74.
[14]ZUO JC(左继超).Mechanism of phosphate and citric acid affecting Pb2+adsorption by red soil colloids(磷和柠檬酸共存对红壤胶体固定铅的影响机理研究)[D].Wuhan:Huazhong Agricultural University(武汉:华中农业大学),2014.
[15]DIAGBOYA PN,OLU-OWOLABI BI,ADEBOWALE KO.Effects of time,soil organic matter,and iron oxides on the relative retention and redistribution of lead,cadmium,and copper on soils[J].Environmental Science and Pollution Research,2015,22(13):10331-10339.
[16]LIN Q(林青),XU SH(徐绍辉).A review on competitive adsorption of heavy metals in soils(土壤中重金属离子竞争吸附的研究进展)[J].Soils(土壤),2008,40(5):706-711.
[17]XIE D(谢丹),XU RK(徐仁扣),BIAN YR(卞永荣),et al.Adsorption ability for Cu(Ⅱ),Pb(Ⅱ)and Cd(Ⅱ)among different soils under different systems(不同体系中不同土壤对Cu,Pb和Cd吸附能力的比较)[J].Journal of AgroEnvironment Science(农业环境科学学报),2005,24(5):899-904.
[18]YANG X(杨欣),CHEN JH(陈江华),ZHANG YL(张艳玲),et al.Adsorptiondesorption behaviors and environmental risk assessment of lead,cadmium in typical tobacco growing soils(铅,镉在典型植烟土中的吸附解吸特性及环境风险评估)[J].Tobacco Science&Technology(烟草科技),2010,(3):46-50.
[19]LIN Q(林青).An experimental study on adsorption and migration of Cu,Cd,Zn,Pb in soils(土壤中重金属Cu,Cd,Zn,Pb吸附及迁移的实验研究)[D].Qingdao:Qiingdao University(青岛:青岛大学),2008.
[2]WANG Y(王艳).Research on the adsorption kinetics of heavy metal elements(Cu,Zn,Cd)in red soils(重金属(Cu,Zn,Cd)元素在红壤中的吸附动力学研究)[D].Changsha:Hunan University(长沙:湖南大学),2014.
[3]DU B(杜斌),ZHAO XL(赵秀兰).Adsorption and desorption characteristics of cadmium in three purplish paddy soils(紫色水稻土对镉吸附解吸特性的研究)[J].Journal of Anhui Agricultural Sciences(安徽农业科学),2012,40(14):8139-8142.
[4]WANG LH(王丽慧),WANG CH(王翠红),YE LL(叶丽丽),et al.Adsorptiondesorption of Cd and Cu in three types of paddy soils from Hunan Province(湖南省3种主要类型水稻土对镉,铜的吸附-解吸特性研究)[J].Journal of Safety and Environment(安全与环境学报),2010,10(5):54-60.
[5]DING YZ(丁永祯),LI ZA(李志安),ZOU B(邹碧),et al.Effect of organic acids on cadmium desorption from paddy soil of the Pearl River Delta in China(有机酸对珠江三角洲水稻土镉解吸行为的影响)[J].Chinese Journal of Applied and Environmental Biology(应用与环境生物学报),2007,13(3):289-293.
[6]LIU P(刘平),XU MG(徐明岗),SONG ZG(宋正国).Effects of accompanying anions on adsorption-desorption of Pb and Cd by two typical soils of China(伴随阴离子对土壤中铅和镉吸附-解吸的影响)[J].Journal of Agro-Environment Science(农业环境科学学报),2007,26(1):252-256.
[7]LIU Y(刘妍),ZHU XL(朱晓龙),DING XQ(丁咸庆),et al.Characteristics of Cd and Pb adsorption-desorption in paddy soils developed from various parent materials and its impacting factors(不同母质发育水稻土对Cd,Pb吸附解吸特性及其影响因子分析)[J].Research of Agricultural Modernization(农业现代化研究),2014,35(5):663-667.
[8]JIANG H,LI T Q,HAN X,et al.Effects of p H and low molecular weight organic acids on competitive adsorption and desorption of cadmium and lead in paddy soils[J].Environmental Monitoring and Assessment,2012,184(10):6325-6335.
[9]LI TQ,JIANG H,YANG X,et al.Competitive sorption and desorption of cadmium and lead in paddy soils of eastern China[J].Environmental Earth Sciences,2013,68(6):1599-1607.
[10]ZHANG FJ,OU XX,CHEN SH,et al.Competitive adsorption and desorption of copper and lead in some soil of North China[J].Frontiers of Environmental Science&Engineering,2012,6(4):484-492.
[11]WANG L(王岚),WANG YP(王亚平),XU CX(徐春雪),et al.Competitive adsorption of cadmium and lead in paddy soils:a case study of paddy soils in Changsha-Zhuzhou-Xiangtan area of Hunan Province(水稻土中重金属元素Cd,Pb的竞争吸附—以长株潭地区水稻土为例)[J].Geological Bulletin of China(地质通报),2012,31(4):601-607.
[12]XU RK,ZHAO A Z.Effect of biochars on adsorption of Cu(II),Pb(II)and Cd(II)by three variable charge soils from southern China[J].Environmental Science and Pollution Research,2013,20(12):8491-8501.
[13]FAN YC(范业成),YE HZ(叶厚专).Fertilizer characters and management of red soil in Jiangxi(江西红壤性水稻土肥力特性及其管理)[J].Acta Agriculturae Jiangxi(江西农业学报),1998,10(3):71-74.
[14]ZUO JC(左继超).Mechanism of phosphate and citric acid affecting Pb2+adsorption by red soil colloids(磷和柠檬酸共存对红壤胶体固定铅的影响机理研究)[D].Wuhan:Huazhong Agricultural University(武汉:华中农业大学),2014.
[15]DIAGBOYA PN,OLU-OWOLABI BI,ADEBOWALE KO.Effects of time,soil organic matter,and iron oxides on the relative retention and redistribution of lead,cadmium,and copper on soils[J].Environmental Science and Pollution Research,2015,22(13):10331-10339.
[16]LIN Q(林青),XU SH(徐绍辉).A review on competitive adsorption of heavy metals in soils(土壤中重金属离子竞争吸附的研究进展)[J].Soils(土壤),2008,40(5):706-711.
[17]XIE D(谢丹),XU RK(徐仁扣),BIAN YR(卞永荣),et al.Adsorption ability for Cu(Ⅱ),Pb(Ⅱ)and Cd(Ⅱ)among different soils under different systems(不同体系中不同土壤对Cu,Pb和Cd吸附能力的比较)[J].Journal of AgroEnvironment Science(农业环境科学学报),2005,24(5):899-904.
[18]YANG X(杨欣),CHEN JH(陈江华),ZHANG YL(张艳玲),et al.Adsorptiondesorption behaviors and environmental risk assessment of lead,cadmium in typical tobacco growing soils(铅,镉在典型植烟土中的吸附解吸特性及环境风险评估)[J].Tobacco Science&Technology(烟草科技),2010,(3):46-50.
[19]LIN Q(林青).An experimental study on adsorption and migration of Cu,Cd,Zn,Pb in soils(土壤中重金属Cu,Cd,Zn,Pb吸附及迁移的实验研究)[D].Qingdao:Qiingdao University(青岛:青岛大学),2008.
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