人工渗流系统对近海域污染水体脱氮除磷效果研究

发布时间：2018-01-19 16:02

  本文关键词： 盐度 人工渗流系统 脱氮除磷　出处：《水处理技术》2016年07期 　论文类型：期刊论文

【摘要】：针对近岸海域水体及滨海城市水体有一定盐度的特点,研究了人工渗流系统对该类含盐水体的脱氮除磷效能。结果表明,在盐度分别为0、0.5%和3.0%的条件下,系统对TN的去除率分别为93.48%、89.56%、77.24%,出水TN的质量浓度分别为0.36、0.59、1.31 mg/L;TP去除率分别为65.19%、36.03%、53.07%,出水TP的质量浓度分别为0.33、0.6、0.44 mg/L。低盐度下系统脱氮效果所受抑制作用较小,高盐度下所受抑制作用较显著。由于离子竞争吸附作用,故系统除磷效果受到抑制作用。系统脱氮作用主要发生在第1格室,树皮填料为微生物的附着生长提供有利环境,且可释放碳源而不会污染水质;除磷作用主要靠第2格室水泥砖块的吸附沉淀作用。脱氮与除磷在空间上的分离使系统运行控制更为便利。
[Abstract]:In view of the characteristics of salinity in coastal waters and coastal cities, the effect of artificial seepage system on denitrification and phosphorus removal was studied. The results showed that the salinity was 0. Under the conditions of 0.5% and 3.0%, the removal rate of TN in the system was 93.48 and 89.56, respectively, and the mass concentration of TN in effluent was 0.36 and 0.59, respectively. 1.31 mg / L; The removal rates of TP were 65.19 and 36.03, respectively, and the mass concentrations of TP in effluent were 0.33 and 0.6, respectively. 0.44 mg / L. The inhibition of denitrification was less at low salinity than that at high salinity. Therefore, the phosphorus removal effect of the system was inhibited. The nitrogen removal effect of the system mainly occurred in the first compartment. The bark packing provided a favorable environment for the microbial attachment and growth, and could release carbon source without polluting the water quality. The removal of phosphorus mainly depends on the adsorption and precipitation of the second compartment cement block, and the separation of denitrification and phosphorus in the space makes the operation and control of the system more convenient.
【作者单位】： 西安建筑科技大学环境与市政工程学院西北水资源与环境生态教育部重点实验室;中国科学院城市环境研究所;厦门理工学院;
【基金】：福建省对外合作项目(2016I0016) 国家水体污染控制与治理科技重大专项(2012ZX07302-002) 厦门市科技计划项目(3502Z20142018) 宁波市科技计划项目(2014A610099) 福建省科技重大专项(2013YZ0001-1-2)
【分类号】：X55;X52
【正文快照】： 水体中氮磷过量是导致滨海城市水体及近岸海域水体富营养化现象的主要成因[1]。污水土地处理系统能耗小、运行费用低、管理操作方便,并且对氮磷具有较好的去除效果。该技术中的典型代表——人工湿地与渗流系统,被广泛应用于城市生活污水及工业废水等的处理。在前期研究中,袁腾，

本文编号：1444862