两级生物滤柱同时去除地下水中铁、锰、氨氮和浊度

发布时间：2018-02-04 03:31

本文关键词： 两级生物滤柱地下水铁锰氨氮浊度　出处：《中国给水排水》2016年21期 　论文类型：期刊论文

【摘要】：为了实现地下水中铁、锰、氨氮和浊度的同时高效、稳定去除,采用两级生物滤柱串联的处理工艺,将两级滤柱的滤速分别从4和6 m/h依次提高到6、9 m/h和8、12 m/h,考察其处理效果。结果表明,一级滤柱对铁、锰和氨氮均有很好的去除效果,并能够去除大部分浊度,二级出水中的铁、锰、氨氮和浊度均远低于国家标准。沿程分析发现,提高滤速后,对铁的去除效果几乎无影响;锰的去除区域明显向下延伸;氨氮在0~0.4 m段的去除速率明显降低,但在1.2 m处均可降到0.2 mg/L以下;对浊度的去除效果也没有影响,形成出水浊度的主要是粒径3μm的颗粒。两级滤柱能够有效去除地下水中的铁、锰、氨氮和浊度,并且能实现长期稳定运行。
[Abstract]:In order to realize the efficient and stable removal of iron, manganese, ammonia nitrogen and turbidity in groundwater, the two-stage biological filter column was used in series to increase the filtration rate from 4 m / h and 6 m / h to 6 m / h respectively. The results showed that the primary filter column had a good removal effect on iron, manganese and ammonia nitrogen, and could remove most of turbidity, iron and manganese in secondary effluent. Ammonia nitrogen and turbidity are far lower than the national standard. The manganese removal area obviously extends downward; The removal rate of ammonia nitrogen decreased obviously at 0 ~ 0. 4 m, but decreased to less than 0. 2 mg/L at 1. 2 m. There is no effect on turbidity removal. The main turbidity of effluent is 3 渭 m particle size. The two-stage filter column can effectively remove iron, manganese, ammonia nitrogen and turbidity from groundwater, and can realize long-term stable operation.
【作者单位】：成都信息工程大学资源环境学院;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】：成都信息工程学院科研基金资助项目(KYTZ201511)
【分类号】：TU991.2
【正文快照】： 地下水水质稳定,不易受到污染,是优良的饮用水源和理想的工业水源。但是一些地区的地下水中常常含有铁、锰和氨氮,并且还不断受到有机物、氨氮等的污染[1],严重影响了其使用价值。生物除铁、锰工艺因其流程简单、处理效果好、运行稳定、占地面积小、投资少等优点[2],在我国多

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