地下水除锰的生物作用试验

目的 研究微生物在锰砂滤层去除地下水中所含的铁、锰过程中所起的作用。为生物法用于地下水除铁除锰的初期启动和生产运行提供依据．方法 试验分为两个阶段，第一阶段。在相同外界条件下，对经过人工接种的滤柱与自然成熟的滤柱进行去除率对比；第二阶段，对成熟滤料进行高温高压灭菌，将灭菌后的滤柱与同期运行的未灭菌滤柱进行去除率试验对比．结果 在运行10dN，两个滤柱的除锰效果出现明显差异，25dN，两个滤柱的除锰效果基本相同．经过灭菌的滤柱重新投入运行，仍然保持原有的除锰能力．结论 滤料的成熟期是一个相对的概念，采用生物接种的手段可以有效地缩短锰砂滤料的成熟期．微生物在除锰过程中起到的是促进作用而非决定性作用，包括物理吸附、化学氧化和催化的非生物因素不容忽视．

Study on the Removal Manganese from Groundwater with Biological Filter Media

The purpose of the article is to study the function of microorganism in the progress of manganese removal and iron removal.The experiment is divided into two stages.First compare the removal rate between the inoculated pillar and naturally formed pillar under the same outside condition.Second stage,put out the germ under the high heat and pressure and study the effect of the microorganism in the course of manganese removal by contrasting the manganese removal rate between pillar A and pillar B.10 days later,the manganese removal rate of pillar A became different from that of pillar B.25 days later,the manganese removal rate of pillar A and pillar B was the same.The results showed that the formed period of the filter media was a comparative conception.The adoption of microorganism inoculation could shorten the formed period.The microorganism played a promoting not a decisive role in the course of manganese removal.The nonbiological function of chemical oxidation,physical sorption and biological course couldn't be ignored.