Reconstruction of Treatment Process for Leachate from Municipal Solid Waste Incineration Plants—A Case of a Municipal Solid Waste Incineration Plant in Guangxi
作者: 宇 鹏 ：广西师范学院环境与生命科学学院，北部湾环境演变与资源利用教育部重点实验室，广西 南宁;
Abstract: Standard for pollution control on the municipal solid waste (MSW) incineration (GB 18485-2014) was implemented on July 1, 2014, which was called new standard in this article. However, treat-ment process for leachate existing in some incineration plants was designed according to the re-levant requirement specified in Standard for pollution control on the municipal solid waste (MSW) incineration (GB 18485-2001), which was called old standard in this article. Requirements about effluent quality in new standard were higher than that in old standard. Therefore, some incinera-tion plants need to reconstruct original treatment process to meet the requirements of the new standards. Original treatment process for leachate of a MSW incineration plant in Guangxi included pretreatment, UASB, two-stage digestion and denitrification, external MBR and RO. As far as this original treatment process was concerned, the removal efficiencies of organics and nitrogen could meet criteria specified in new standard, but those of SS and heavy metal could not. When the original process was reconstructed, biochemical treatment unit in original process was retained as much as possible to save investment. The main tasks of reconstruction were to respectively change regulation tank and UASB into overflow tank and UBF and to add equalization tank and NF. So reconstruction process includes pretreatment, UBF, two-stage digestion and denitrification, external MBR, NF and RO. From removal effect of pollutants in various processing units, the effluent quality from reconstruction process can reach the discharge concentration limits of the new standard.
文章引用: 宇 鹏 (2016) 生活垃圾焚烧厂渗滤液处理工艺的改造研究—以广西某生活垃圾焚烧厂为例。 水污染及处理， 4， 1-6. doi: 10.12677/WPT.2016.41001
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