Interactive Effect of Biosurfactant and Microorganism to Enhance Phytoremediation for Removal of Aged Polycyclic Aromatic Hydrocarbons from Contaminated Soils
Interactive Effect of Biosurfactant and Microorganism to Enhance Phytoremediation for Removal of Aged Polycyclic Aromatic Hydrocarbons from Contaminated Soils
复制标题
生物表面活性剂和微生物的相互作用增强植物修复去除污染土壤中老化的多环芳烃
DOI：
10.1248/jhs.56.257
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发表时间：
2010-06
影响因子：
--
通讯作者：
Zhang, Jing
中科院分区：
文献类型：
--
作者：
Chen, Ruirui;Liu, Weiwei;Lin, Xiangui;Li, Xuanzhen;Yin, Rui;Zhang, Jing
为了提高植物修复多环芳烃（PAHs）的效率，通过盆栽试验，将丛枝菌根真菌、芳烃降解菌（ARDB）和鼠李糖脂引入植物修复体系。在苜蓿生长90 d后，测定苜蓿生物量、异养菌数量、ARDB数量、脱氢酶活性、多酚氧化酶活性和残留多环芳烃浓度。结果表明，多技术植物修复系统对总多环芳烃的平均去除率为60.48%，比植物修复本身的去除率（17.19%）高251.83%。重要的是，该多工艺系统能够去除土壤中大部分高分子量多环芳烃（HMW-PAHs），其中高分子量多环芳烃（HMW-PAHs）的平均去除率分别为89.39%、88.36%和92.31%，其中荧光蒽、芘和苯并[a]芘的平均去除率最高。异养和芳烃降解微生物数量急剧增加，导致土壤脱氢酶和多酚氧化酶活性增加。植物修复成功的关键因素是使用生物表面活性剂提高土壤中多环芳烃的生物有效性，以及接种微生物（丛枝菌根真菌和ARDB）加速植物生长并增加重污染土壤中多环芳烃的去除。这些方法的协同使用导致污染土壤中植物组织快速和大量的生物量积累，可能提供更活跃的代谢过程，并导致更快速和更彻底地去除多环芳烃。
To improve phytoremediation efficiency of polycyclic aromatic hydrocarbons (PAHs), pot experiment was conducted to introduce arbuscular mycorrhizal fungi, aromatic hyrocarbon degrading bacteria (ARDB), and rhamnolipids into phytoremediation system. Alfalfa biomasses, the number of heterotrophs and ARDB, dehydrogenase activity, polyphenol oxidase activity and residual PAHs concentration were determined after 90 days of alfalfa growth. The results indicated that the average removal efficiency of total PAHs by multi-technique phytoremediation system reached to 60.48%, which was 251.83% greater than that of phytoremediation itself (17.19%). Importantly, the multi-process system was capable of removing most of the high molecular weight PAHs (HMW-PAHs) from soil, the highest average removal percentage of HMW-PAHs, such as fluoranthene, pyrene and benzo[a]pyrene were 89.39%, 88.36% and 92.31%, respectively. A sharp increase in the size of the heterotrophic and aromatic hyrocarbon degrading microbial populations was observed, which resulted in increase of soil dehydrogenase and polyphenol oxidase activities. The key elements for successful phytoremediation were the use of biosurfactant that increase bioavaliable of PAHs in soil, and inoculation of microorganisms (arbuscular mycorrhizal fungi and ARDB) that accelerate plant growth and increase PAHs removal from heavily contaminated soils. The synergistic use of these approaches resulted in rapid and massive biomass accumulation of plant tissue in contaminated soil, putative providing more active metabolic process, and led to more rapid and more complete removal of PAHs.
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影响因子：
4.8
作者：
Vanessa Leonardi;V. Šašek;M. Petruccioli;A. D’Annibale;P. Erbanová;T. Cajthaml
通讯作者：
Vanessa Leonardi;V. Šašek;M. Petruccioli;A. D’Annibale;P. Erbanová;T. Cajthaml
影响因子：
12.9
作者：
J. Desai;I. Banat
通讯作者：
J. Desai;I. Banat
影响因子：
2.8
作者：
Burd, GI;Dixon, DG;Glick, BR
通讯作者：
Glick, BR
影响因子：
2.8
作者：
Cheng, K. Y.;Wong, J. W. C.
通讯作者：
Wong, J. W. C.
影响因子：
4.9
作者：
Binet, P;Portal, JM;Leyval, C
通讯作者：
Leyval, C