کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
585274 | 1453188 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioremediation of Pb-contaminated soil by incubating with Phanerochaete chrysosporium and straw
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
The bioremediation of the simulated lead (Pb)-contaminated soils by incubating with Phanerochaete chrysosporium and straw was studied at laboratory-scale. The soil pH, Pb concentration, soil microbial biomass, microbial metabolic quotient, microbial quotient and microbial biomass C-to-N ratios were monitored. The above indicators were to study the stress of Pb on soil and the microbial effects during the bioremediation process. It was found that the soils treated with P. chrysosporium and straw showed a much lower concentration of soluble-exchangeable Pb, lower metabolic quotient and biomass C-to-N ratios (0 mg kgâ1 dry weight soil, 1.9 mg CO2-C mgâ1 biomass carbon and 4.9 on day 60, respectively) and higher microbial biomass and microbial quotient (2258 mg kgâ1 dry weight soil and 7.86% on day 60, respectively) compared with the controls. In addition, the kinetic parameters in the model based on logistic equation were calculated by the BIOLOG data. By analyzing those kinetic parameters some information on the metabolic capacity of the microbial community could be obtained. All the results indicated that the bioavailability of Pb in contaminated soil was reduced so that the potential stress of Pb was alleviated, and also showed that the soil microbial effects and the metabolic capacity of microbial community were improved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 134, Issues 1â3, 30 June 2006, Pages 268-276
Journal: Journal of Hazardous Materials - Volume 134, Issues 1â3, 30 June 2006, Pages 268-276
نویسندگان
Dan-Lian Huang, Guang-Ming Zeng, Xiao-Yun Jiang, Chong-Ling Feng, Hong-Yan Yu, Guo-He Huang, Hong-Liang Liu,