Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses,Bioresource Technology

当前位置： X-MOL 学术 › Bioresource Technol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Efficient removal of heavy metals by synergistic actions of microorganisms and waste molasses
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-01-13 , DOI: 10.1016/j.biortech.2020.122797
Yan Sun ₁ , Jirong Lan ₁ , Yaguang Du ₂ , Zhuang Li ₂ , Xi Liao ₂ , Dongyun Du ₁ , Hengpeng Ye ₁ , Tian C Zhang ₃ , Shaohua Chen ₁

Affiliation

In this study, two bacteria strains ( sp. SL and sp. SL-1) and waste molasses (carbon source) were used to remove Zn(II), Cd(II), Cr(VI), and Cr(Total) in the liquid solution (87 mg·L). The results showed the removal efficiencies of Cr(Total) and Cr(VI) could reach over 98.00% after reaction, and the removal efficiencies of Zn(II) and Cd(II) were all about 90.00% by the synergistic actions of microorganisms and waste molasses. In this process, waste molasses provides nutrients for microorganisms and has the characteristics and capability of Cr, Zn, and Cd. Microorganisms mainly use biological adsorption (36.95% and 45.69%) and metabolism (24.37% and 17.05% by producing humic-acid and fulvic-acid like substances) to remove Zn(II) and Cd(II), while waste molasses could to remove Cr(Total) (81.24%) and Cr(VI) (75.90%). This study has potential application value for the treatment of wastewater containing high concentrations of heavy metals.

中文翻译：

通过微生物与废糖蜜的协同作用高效去除重金属

本研究利用两种细菌菌株（sp.SL和sp.SL-1）和废糖蜜（碳源）去除水中的Zn(II)、Cd(II)、Cr(VI)和Cr(Total)。液体溶液(87 mg·L)。结果表明，通过微生物与微生物的协同作用，反应后Cr(Total)、Cr(VI)的去除率可达98.00%以上，Zn(II)、Cd(II)的去除率均在90.00%左右。废糖蜜。在此过程中，废糖蜜为微生物提供营养，具有Cr、Zn、Cd的特性和能力。微生物主要利用生物吸附（36.95%和45.69%）和代谢（24.37%和17.05%通过产生腐殖酸和黄腐酸类物质）去除Zn(II)和Cd(II)，废糖蜜可以去除Zn(II)和Cd(II)。 Cr（总计）（81.24%）和 Cr(VI)（75.90%）。该研究对于高浓度重金属废水的处理具有潜在的应用价值。

更新日期：2020-01-13

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11