ZHANG Hong guo,ZHONG Keng qiang,LIN Jie song,et al.Effect of Internal Nutrient Sources and Mechanism of Chromium and Sulfate Removal by Immobilized SRB[J].China Water & Wastewater,2018,34(21):42-46.
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Effect of Internal Nutrient Sources and Mechanism of Chromium and Sulfate Removal by Immobilized SRB

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 21 Page: 42-46 Column: Date of publication: 2018-10-20
Article number:
1000-4602(2018)21-0042-05
Author(s):
ZHANG Hong guo1; ZHONG Keng qiang1; LIN Jie song1; WU Meng jie1;  WEN Xiang si1; CHEN Guang shi1; DENG Kang lan1; CHEN Zi ying1;  GONG Chang chen1; SUN Jian2
(1. Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Key Laboratory for Water Quality Security and Protection in Pearl River Delta , School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; 2. Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China)
Keywords:
SRB; immobilization; nutrient source; chromium; sulfate
CLC:
YU991
Document code:
C
Abstract:
Microbial immobilization technology has a unique significance to the security of water sources which are encountering challenges such as heavy metal contamination and lack of nutrition sources. Several kinds of immobilized beads of sulfate reducing bacteria (SRB) were prepared, which embedded several types of internal carbon sources including sucrose, glucose, n-propanol, and sodium acetate. The polyvinyl alcohol and the sodium alginate were used as crosslinking agents. With initial concentrations of 100 mg/L Cr6+ and 200 mg/L SO2-4, the removal efficiency of Cr6+and SO2-4 was discussed. It was demonstrated that great removal effect of Cr6+and SO2-4 was achieved when using internal carbon sources of sucrose, glucose, n-propanol, and sodium acetate. The maximum Cr6+ removal amounts were up to 333.74, 297.14, 289 and 260.54 μg/g, and the maximum SO2-4 removal amounts reached 1 553.60, 1 375.64, 1 374.46 and 1 267 μg/g, corresponding to the carbon sources. The most suitable carbon source was sucrose, and the maximum removal rates of Cr6+ and SO2-4 were 99.89% and 98.65%, respectively. The components of hydroxyl compound, bicarbonate ion, sulfate, and their effects on the beads affected the removal efficiency of Cr6+and SO2-4 by immobilized SRB.

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Memo

基金项目：国家自然科学基金资助项目(51208022、51778156、41372248)；广东省科技计划项目（2014A020216042）；广州市珠江科技新星项目(2011061)；广州市科技计划项目（201607010318、201707010256）；广州大学2017年度大学生创新训练项目；广州市教育局重大创新项目(13XT02)
通信作者：陈永亨E-mail：cyheng@gzhu.edu.cn
作者简介：张鸿郭（1979- ），男，江西上饶人，博士，教授，研究方向为水处理技术

Last Update: 2018-11-01