论文部分内容阅读
利用实验室含水层物质微环境实验，对地下水中常见有机污染物苯和甲苯在厌氧反硝化条件下的微生物降解进行了研究。通过１０种方案实验结果的分析对比，所得重要结论如下：在加强了的反硝化条件下，微生物利用ＮＯ－３作为电子受体降解苯和甲苯；降解苯和甲苯的反硝化细菌来自于含水层物质；微生物所需的宏量营养由苯、甲苯和硝酸盐提供，痕量元素来自于含水层物质；环境的酸碱条件对微生物降解具有重要影响，ｐＨ值过高或过低均抑制微生物降解作用的产生。
Using laboratory aquatic microenvironment experiments, the degradation of common organic pollutants benzene and toluene in anaerobic denitrification was studied. Through the comparison and analysis of the results of 10 schemes, the main conclusions obtained are as follows: Under enhanced denitrification conditions, microorganisms use NO-3 as electron acceptor to degrade benzene and toluene; denitrifying bacteria to degrade benzene and toluene come from aquifer The macronutrients required by microorganisms are provided by benzene, toluene and nitrate, and the trace elements are derived from aquifer substances. The acid and alkali conditions of the environment have an important influence on the degradation of microorganisms. When the pH value is too high or too low, the microbial degradation is inhibited The role of the production.