环境工程学报2012，Vol.6Issue(8)：2512-2516,5.
零价铁与厌氧微生物协同还原地下水中的硝基苯
Reduction of nitrobenzene in ground water by the combination of zero valent iron and anaerobic microorganism
摘要
Abstract
Batch tests were conducted to investigate the reduction of nitrobenzene （NB） in groundwater by the combination of zero valent iron （ZVI） and anaerobic microorganism. The results showed that the ZVI/anae- robic microorganism system was better than ZVI or anaerobic microorganism alone, and the removal of NB in- creased by 21.8% and 57.0% , respectively. Acid condition was favorable for NB reduction in the synergy sys- tem. When solution pH decreased from 7.0 to 6.0 and 5.0, NB removal increased by 74.4% and 35.2% after 4 d, respectively. NB removal increased with iron dosage and the optimal iron dosage was 250 mg/L. The re- leased Fe2~ during ZVI corrosion could not be used as an electron donor, but it was beneficial to anaerobic mi- croorganism as an inorganic nutrient element. Since the production of H2 was not significantly affected by the pre- cipitates on iron surface, NB removal efficiency could be maintained and the life span of ZVI could also be pro- longed in contaminated groundwater remediation.关键词
地下水/零价铁/硝基苯/协同还原Key words
groundwater/zero valent iron/nitrobenzene/synergy reduction分类
资源环境引用本文复制引用
梁俊倩,吴锦华,李平,王向德,杨波..零价铁与厌氧微生物协同还原地下水中的硝基苯[J].环境工程学报,2012,6(8):2512-2516,5.基金项目
国家自然科学基金资助项目 （）
国家高技术研究发展计划（863）项目 （）
中央高校基本科研业务费资助项目 （）
教育部新教师基金 （）
广东省自然科学基金资助项目 （）
