Treatment of landfill leachate by immobilized microorganisms

被引:0
作者
ZhengFang Ye
HongYan Yu
LiLi Wen
JinRen Ni
机构
[1] Peking University,Key Laboratory of Water and Sediment Sciences of Ministry of Education, Department of Environmental Engineering
[2] Peking University,Key Laboratory of Environmental and Urban Sciences, Shenzhen Graduate School
来源
Science in China Series B: Chemistry | 2008年 / 51卷
关键词
immobilization; microbial; performance; treatment; landfill leachate;
D O I
暂无
中图分类号
学科分类号
摘要
This paper focuses on the outcome and the main performance of the immobilized microbial that treats landfill leachate. Based on the analysis of COD and ammonia-nitrogen of the influent and effluent, research was done on the high removal efficiency of COD and ammonium nitrogen by immobilized microbial. The leachate composition was analyzed qualitatively using GC-MS before and after being treated. Biological loading of efficient microbial flora on the carrier was measured by Kjeldahl’s method. Finally, the patterns of immobilized microbe were observed through scanning electron microscopy (SEM). The results showed that in immobilized microorganisms system, the efficiencies of COD and nitrogen were 98.3% and 99.9%, respectively. There was a great reduction of organic components in effluent. When the immobilized biomass on the carrier was 38 g·L−1 (H2O), the filamentous microorganism was highly developed. There was no inhibitory effect on the nitrobacteria and nitrococcus, when ammonia was over 200 mg·L−1 and NH3 over 150 mg·L−1. At a high organic loading, it still had good nitrification. This paper also compares the performance of immobilized microbial with free microbial under the same condition. The immobilized microbial technology demonstrated better than the latter in all aspects.
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页码:1014 / 1020
页数:6
相关论文
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