Effect of linear alkyl benzene sulfonates (LAS)on the fate of phenanthrene in a model ecosystem (water-lava-plant-air)  

作　　者：JIANGXia JINXiang-can YANChang-zhou AyferYediler OUZi-qing AntoniusKettrup 

机构地区：[1]ChineseResearchAcademyofEnvironmentalScienceBeijing100012,China [2]GSF-NationalResearchCenterforEnvironmentandHealth,InstituteofEcologicalChemistry.lngolstaedterLandstraβe1,85764,Neuherberg,Germany [3]InstituteofAppliedEeology,ChineseAcademyofSciences,Shenyang110015,China

出　　处：《Journal of Environmental Sciences》2004年第3期513-519,共7页环境科学学报（英文版）

基　　金：TheNationalBasicResearchProgrammeofChina(No .2 0 0 2CB41 2 30 4 ) ,theScienceandTechnologyPreResearchFoundationofCRAESandBMBFoGermany

摘　　要：Advanced closed chamber system was used to study the fate of phenanthrene (3 rings PAHs) in the presence of linear alkylbenzene sulphonates(LAS). The results showed mineralization and metabolism of phenanthrene are fast in the “culture solution lava plant air' model ecological system. The distribution proportions of applied 14 C activity in this simulative ecological system were 41%—45%, 14% to 10% and 1% in plant, lava and culture solution respectively, and 18% to 29%, 11% to 8% recovered in the forms of VOCs and CO 2. Main parts of the applied 14 C activity exist in two forms, one is polar metabolites(25%) which mainly distribute in the root(23%), the other is unextractable part(23%) which have been constructed into plant root(8 98%), shoot(0 53%) or bonded to lava(13 2%). The main metabolites of phenanthrene were polar compounds(25% of applied 14 C activity), and small portion of 14 C activity was identified as non polar metabolites(6% of applied 14 C activity) and apparent phenanthrene(1 91% of applied 14 C activity). Phenanthrene and its metabolites can be taken up through plant roots and translocated to plant shoots. The presence of LAS significantly increased the the concentration of 14 C activity in the plant and production of VOCs, at the same time it decreased the phenanthrene level in the plant and the production of CO 2 at the concentration of 200 mg/L.Advanced closed chamber system was used to study the fate of phenanthrene (3 rings PAHs) in the presence of linear alkylbenzene sulphonates(LAS). The results showed mineralization and metabolism of phenanthrene are fast in the “culture solution lava plant air' model ecological system. The distribution proportions of applied 14 C activity in this simulative ecological system were 41%—45%, 14% to 10% and 1% in plant, lava and culture solution respectively, and 18% to 29%, 11% to 8% recovered in the forms of VOCs and CO 2. Main parts of the applied 14 C activity exist in two forms, one is polar metabolites(25%) which mainly distribute in the root(23%), the other is unextractable part(23%) which have been constructed into plant root(8 98%), shoot(0 53%) or bonded to lava(13 2%). The main metabolites of phenanthrene were polar compounds(25% of applied 14 C activity), and small portion of 14 C activity was identified as non polar metabolites(6% of applied 14 C activity) and apparent phenanthrene(1 91% of applied 14 C activity). Phenanthrene and its metabolites can be taken up through plant roots and translocated to plant shoots. The presence of LAS significantly increased the the concentration of 14 C activity in the plant and production of VOCs, at the same time it decreased the phenanthrene level in the plant and the production of CO 2 at the concentration of 200 mg/L.

关 键 词：PHENANTHRENE LAS PLANT closed chamber systems 

分 类 号：X171[环境科学与工程—环境科学]