【作者】 徐新燕；

【导师】 贾金平；

【作者基本信息】 上海交通大学 ， 环境工程， 2007， 硕士

【摘要】 随着城市水平的不断提高,我国城市垃圾产量也急剧增大,而卫生填埋处理仍然是我国当前最主要、最方便的处理方式,但卫生填埋场在运行过程中会产生大量垃圾渗滤液。本文基于上海市老港垃圾填埋场垃圾渗滤液的矿化垃圾床处理技术而产生的低浓度渗滤液（简称矿化垃圾渗滤液）,进行深度处理技术研究,以使渗滤液达到国家垃圾渗滤液的一级排放标准。首先对矿化垃圾渗滤液在实验室进行了常规水质分析,测定结果表明:矿化垃圾渗滤液毒性大,后续难以再直接采用生物处理,须采取一种有效的物化处理技术氧化去除或者混凝去除其中的有机物和重金属,以使水质COD值及其毒性降低。内电解技术作为一种经济实用电化学技术,可以在去除有机物的同时沉淀混凝去除大部分重金属,因此基于传统内电解技术的优缺点和处理原理提出了两段式内电解技术,拟降解渗滤液中异常稳定的有机物,达到国家生活垃圾渗滤液排放标准。两段式内电解技术是以好氧与缺氧结合的处理工艺,将好氧内电解的有机物降解效能与缺氧内电解良好的有机物还原转化能力结合,发挥各自优势,在深度处理垃圾渗滤液领域取得了较好的处理效果。该处理工艺相比较传统内电解工艺处理效果更好,耗电低,工艺设备简单,较其他电化学方法而言,成本大大降低。以内电解技术深度处理垃圾渗滤液,在处理350mg·L^-1以下的垃圾渗滤液时,COD可以下降到100mg·L^-1以下,达到垃圾渗滤液排放标准的要求。更多还原

【Abstract】 Continuing industrial and commercial growth in many countries around the world in the past decades has been accompanied by rapid increases in both the municipal and industrial solid waste generations. In the foreseeable future, landfilling continues to be the primary means of MSW disposal. Besides scarcity of available landfill sites, a large amount of leachate generated from a landfill site poses as a major problem of landfill disposal of MSW. Proper treatment of the leachate has therefore had been a challenging problem confronting the local governments.Landfill leachate has been generally known as a high-strength wastewater that is most difficult to deal with. This is due primarily to its large variability of organic, inorganic and heavy metal contents, strongly depending on the age and type of solid wastes of a landfill site. Satisfactory treatment of leachate is thus no easy task.In this paper, the advanced treatment of leachate was done aiming at the effluent of aged refuse bed, to meet the discharge rate of state standard of this field. Foremost, the landfill leachate quality was analyzed using several technologies such as ICP-AES, GC-MS, AOX analyzer, results showed that the main components of COD is the low-degradability organic matter, the ratio between BOD and COD is small, and the waste water has a comparative更多还原