Notice of RetractionRemoving BTEX from Contaminated Groundwater by Adsorption of Peat and Degradation of Immobilized Microorganism

2011 5th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2011-05-10 DOI:10.1109/ICBBE.2011.5780734

Zhang Lei, Zhang Lan-ying, An Yong-lei, Liu Na, G. Song

引用次数: 0

Abstract

The adsorption capability of peat after pretreatment and the degrading characteristics of immobilized BTEX degrading bacteria on the removal of BTEX were evaluated. Results show that: the adsorption of BTEX by peat could reach balance in 20min. The pseudo second-order equation fitted perfectly the adsorption kinetics curve of peat towards BTEX. The adsorption data obtained were well described by the Freundlich adsorption model. The results indicate that the maximum adsorption capacity was (mg·g-1): (benzene) 0.836, (toluene) 0.890, (ethylbenzene) 1.590, (xylene) 1.814. Peat was also used to immobilize the BTEX-degrading bacteria via adsorption method. The adsorption rate of BTEX on peat could reach 76% after 2 days. The removal rate of BTEX by immobilized bacteria was higher than suspended bacteria, which could reach about 90% over a wide range of concentrations (20-80mg·g-1).

查看原文本刊更多论文

关于用泥炭吸附和固定化微生物降解法去除地下水中BTEX的通知

考察了预处理后泥炭的吸附性能以及固定化BTEX降解菌对BTEX的降解特性。结果表明:炭对BTEX的吸附可在20min内达到平衡。拟二阶方程与泥炭对BTEX的吸附动力学曲线拟合较好。所得的吸附数据可以用Freundlich吸附模型很好地描述。结果表明:最大吸附量为(mg·g-1):(苯)0.836，(甲苯)0.890，(乙苯)1.590，(二甲苯)1.814。用泥炭吸附固定化btex降解菌。2 d后BTEX在泥炭上的吸附率可达76%。固定化菌对BTEX的去除率高于悬浮菌，在较宽的浓度范围内(20 ~ 80mg·g-1)， BTEX的去除率可达90%左右。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2011 5th International Conference on Bioinformatics and Biomedical Engineering

自引率

0.00%

发文量