严寒地区碳化稻壳生物净化地下水高铁锰研究  

Study on purification of high iron and manganese in underground water of cold regions by the integrated process of carbonized rice husk and biological oxidation

作　　者：孙楠[1] 田伟伟[1] 张颖[2] 鲁岩[2] 宋秋霞[2] 李春艳[2] 姜昭[2] 

机构地区：[1]东北农业大学水利与建筑学院,哈尔滨150030 [2]东北农业大学资源与环境学院,哈尔滨150030

出　　处：《东北农业大学学报》2016年第2期31-39,共9页Journal of Northeast Agricultural University

基　　金："十二五"国家科技支撑计划课题(2013BAJ12B01)

摘　　要：采用碳化稻壳吸附-优势巨大芽孢杆菌生物氧化-活性炭除菌耦合净化严寒地区地下水中高铁锰,探究联合滤柱低温快速启动方法,基于接触氧化法与生物法对比分析成熟稻壳滤柱沿程除铁效果与反应速率,考查特定进水锰含量梯度下进水总铁浓度对生物除铁锰影响。结果表明,优势菌液全循环、低滤速运行方式使生物除铁锰活性滤膜成熟且稳定仅需34 d;稳定运行时铁、锰、残余菌平均去除率为96.28%、93.18%、75.43%,出水浓度均达国家生活饮用水卫生标准(GB5749-2006);生物法可加强总铁、Fe^(2+)去除效果,滤速提高对生物法中Fe^(2+)去除能力影响显著,进水铁含量过高或过低均会影响滤层除锰能力。Purifing high iron-manganese in underground water of cold regions by the integrated process of carbonized rice husk particles adsorption, biological oxidation using Bacillus megaterium bacteria and the columnar activated carbon adsorbing residual bacteria, the quick start-up method of combined filter column at low temperature was studied. The iron removal efficiency and reaction rate along mature rice husk filter were analyzed through the compare between contact oxidation method and biological method. Under the gradient of the specific manganese content in influent, the effect of total iron concentration on biological removal of iron-manganese was investigated. The results showed that the active biological membrane reached to be mature and stable for 34 d by the filter column operation mode of bacteria liquid cycle and low filtration rate.In the stable operation phase, the average removal rate of iron-manganese and residual bacteria was 96.28%, 93.18% and 75.43%, respectively. The effluent concentration in the finished water met the requirements of the standards for drinking water quality（GB-5749-2006）. Biological method could strengthen total iron and Fe^（2＋）removal effect, the high filtration rate improved significantly Fe2 ＋removal effect in biological method, the too high or low iron content in influent would affect manganese removal ability along the filter layer.

关 键 词：地下水 铁锰 生物法 低温 

分 类 号：TU991.265[建筑科学—市政工程]