两段进水改善地下渗滤系统脱氮效果的研究  

Two-step Feed for Improving Nitrogen Removal in Subsurface Infiltration System

作　　者：王虹[1] 吕剑峰 何圣兵[1] 谢希[1] 刘佃娜[1] 陈雪初[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240 [2]温州港城发展有限公司,浙江温州325000

出　　处：《中国给水排水》2015年第11期89-92,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07302003);教育部新世纪优秀人才支持计划项目(NCET-11-0320);浙江省水环境与海洋生物资源保护重点实验室开放基金资助项目

摘　　要：针对地下渗滤系统处理生活污水时脱氮效果差的问题,采用两段进水方式对地下渗滤系统进行改进,并研究了不同进水分配比对系统处理效果的影响。结果表明,系统的最佳进水分配比为2∶1,在此条件下对TN的平均去除率可达到60.42%,远高于单段进水条件下的TN去除率(37.33%),同时系统对COD、TP和氨氮的去除效果也较好,出水水质可达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级B标准。另外,在进水分配比为2∶1的条件下,分析了系统内氮素的沿程变化,探索了氮的去除途径。In view of poor nitrogen removal efficiency of subsurface infiltration system in domestic sewage treatment, the system was improved by two-step feed method, and the influence of different feed ratios on the treatment efficiency of the improved system was investigated. The results showed that the op- timal feed ratio was 2 ： 1, at which the average removal rate of TN was 60.42% , higher than 37.33% in the traditional subsurface infiltration system. The removal efficieneies of COD, TP and ammonia nitrogen were excellent, and the effluent quality could meet the first level B criteria specified in Discharge Stand- ard of PoUutants for Municipal Wastewater Treatment Plant （ GB 18918 -2002）. The variation of nitrogen along the improved system was analyzed at a ratio of 2 ： 1, and the nitrogen removal way was explored.

关 键 词：地下渗滤系统 两段进水 脱氮 

分 类 号：X703[环境科学与工程—环境工程]