电氧化联用电絮凝深度处理垃圾渗滤液研究

发布时间：2018-01-28 17:11

本文关键词： 电氧化电絮凝氨氮有机物垃圾渗滤液　出处：《黑龙江大学自然科学学报》2017年05期 　论文类型：期刊论文

【摘要】：为去除不同种类的污染物,采用电氧化与电絮凝联用技术对垃圾焚烧厂渗滤液生化出水进行了深度处理研究,考察了电氧化过程中阳极材料、pH和氯离子以及电絮凝中pH对氨氮、有机物和总磷的去除效果影响。结果表明,阳极材料对氨氮的去除影响较大,钌铱电极作为阳极、电氧化90 min时,废水中的氨氮可全部去除,废水中pH和氯离子浓度可满足电氧化处理的需求,因此无需外加药剂进行预调。pH为9时,电絮凝30 min后有机物和总磷的去除率可分别达到72%和98%。采用电氧化和电絮凝联用后,氨氮、有机物、总磷和粪大肠菌的去除率分别达到99%、80%、98%和100%,出水满足国家垃圾渗滤液排放标准(GB16889-2008),该联用技术在垃圾渗滤液的深度处理上有较好的应用前景。
[Abstract]:In order to remove different kinds of pollutants, the advanced treatment of biochemical effluent from leachate of waste incineration plant was carried out by the combination of electrooxidation and electroflocculation, and the anodic materials during the process of electrooxidation were investigated. The effects of pH and chlorine ion and pH in electroflocculation on the removal of ammonia nitrogen, organic matter and total phosphorus were studied. The results showed that the anode material had a great effect on the removal of ammonia nitrogen, and the ruthenium iridium electrode was used as anode. When electrooxidized for 90 min, the ammonia nitrogen in the wastewater can be completely removed, and the pH and chloride ion concentration in the wastewater can meet the demand of electrooxidation treatment. Therefore, there is no need to pre-adjust the pH of the wastewater to 9:00. The removal rates of organic matter and total phosphorus reached 72% and 98 respectively after electroflocculation for 30 min. After electrooxidation and electroflocculation, ammonia nitrogen and organic matter were removed. The removal rates of total phosphorus and fecal coliform bacteria reached 99% and 100%, respectively, and the effluent met the national leachate discharge standard (GB16889-2008). The combined technology has a good application prospect in the advanced treatment of landfill leachate.
【作者单位】：中节能工程技术研究院有限公司;哈尔滨工业大学市政环境工程学院城市水资源与水环境国家重点实验室;
【基金】：国家水体污染控制与治理科技重大专项项目(2012ZX07201003-002)
【分类号】：X703
【正文快照】： 城市水资源与水环境国家重点实验室,哈尔滨150090)0引言垃圾渗滤液是垃圾在填埋或焚烧处理过程中产生的营养物质比例失调、含有毒有害物质且水质变化大的高浓度有机废水。垃圾渗滤液如不加以处理,将对地下水、大气等环境造成严重的二次污染,对人类健康和周边生态造成巨大危害[

【相似文献】