新型生物除锰滤料处理含锰地下水研究  

Study on the treatment of manganese containing ground water by a new type biological filtering medium

作　　者：张长利[1] 杨宏[1] 王景晶[1] 梅青[1] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124

出　　处：《环境污染与防治》2013年第1期69-72,共4页Environmental Pollution & Control

摘　　要：采用聚乙烯醇-硼酸-戊二醛法固定锰氧化细菌,并将其粘附于石英砂表面制备出一种新型生物除锰滤料,将生物除锰滤料装填模拟滤柱,进行了处理含锰水的连续流实验。结果表明:利用细胞固定化技术制备的生物除锰滤料使滤柱的启动期缩短到16d左右,且成熟期的滤柱在10m/h滤速下仍然保持95%以上的锰去除率;过量铁的存在不利于锰的氧化去除,进水中Fe2+质量浓度在2.0mg/L时降低了对锰的去除能力;滤柱对高浓度锰原水在10m/h滤速下仍然保持较高的锰去除率,且对低铁高锰水进行处理后,出水锰可以降到0.05mg/L以下。A new type of biological filtering medium was produced by immobilizing manganese-oxidizing bacteria on quartz sands using acid-polyvinyl alcohol-glutaraldehyde method. The filtering medium was filled in a filtration col-umn for continuous treatment of manganese containing ground water. The results indicated that, the biological filtering medium shortened the start-up stage of filtration column to about 16 days. The manganese removal rate of mature stage filtration column remained over 95% even under the high filtration rate of 10 m/h. The filtration column main-tained perfect treatment efficiency to high concentrate manganese containing ground water,while the existence of ex-cessive iron was unfavorable for manganese removal. The manganese removal efficiency was obviously inhibited when influent Fe^2＋ reached to 2.0 mg/L. For those influent water contained high manganese and low iron,the effluent man- ganese concentration was under 0. 05 mg/L after treated by mature stage filtration column under 10 m/h of filtration.

关 键 词：锰氧化细菌 细胞固定 聚乙烯醇 

分 类 号：X523[环境科学与工程—环境工程]