复合有机物污染的含铁、锰源水生物净化研究

发布时间：2018-02-02 16:50

本文关键词： 生物滤池微污染水体曝气强度过滤模式　出处：《中国给水排水》2016年17期 　论文类型：期刊论文

【摘要】：对受铁、锰及可生物降解有机物污染的水体,采用模拟生物滤柱进行同步净化试验研究。装置采用重力流过滤和上向流曝气过滤两种运行模式,结果表明,当进水DO浓度满足污染物氧化需求时,重力流过滤可实现对三者的同步去除,出水水质满足饮用水卫生标准要求;继续提高进水COD_(Mn)浓度时,DO不足导致除锰效果恶化,而铁与COD_(Mn)的去除效果受影响较小。上向流底部曝气可解决DO不足的问题,但曝气作用使滤层的截留能力减弱,导致铁锰氧化物随水流流出滤层;曝气强度较高时易引起出水铁、锰浓度超标,而弱曝气强度可实现三者的出水达标。曝气强度对去除COD_(Mn)的影响不明显,去除率始终高达80%。
[Abstract]:The iron, manganese and water biodegradability of organic pollution, the simulation of biological filter column were studied. Synchronous purification device using gravity flow filtration and upflow filtration of two operating modes. The results show that when the concentration of DO to meet the demand of pollutant oxidation, gravity flow filtering can realize the simultaneous removal of three, the effluent quality meets the sanitary standard for drinking water; to improve the influent COD_ concentration, DO (Mn) due to insufficient removal of manganese and iron deterioration, and COD_ (Mn) removal effect is less affected. The upward flow of bottom aeration can solve DO problems, but the aeration filter interception ability is abate, lead to iron and manganese oxides with the water outflow filter layer; high aeration intensity caused by water iron and manganese concentrations exceed the standard, the effluent standard and weak aeration intensity can achieve three. Aeration intensity on the removal of COD_ (Mn) to effect is not obvious. The removal rate is always up to 80%.

【作者单位】：青岛理工大学环境与市政工程学院;北京工业大学水质科学与水环境恢复工程北京市重点实验室;哈尔滨工业大学城市水资源与水环境国家重点实验室;
【基金】：国家自然科学基金优秀青年科学基金资助项目(51222807)
【分类号】：TU991.2
【正文快照】： 与水环境恢复工程北京市重点实验室,北京100124;3.哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090)在地球天然物化特性及人类活动影响作用下,众多饮用水源已受到锰离子污染[1,2]或铁、锰离子的共同污染[3]。另外,由于地表水体易受有机物污染,当受金属离

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