Abstract:
This project is an upgrade project of landfill leachate treatment engineering of a domestic waste landfill site(>10 a). The combined process of “pretreatment+high-stress resistant salt-tolerant bacteria biochemical+external UF+NF+two-stage RO system” was adopted in the modified leachate treatment system. The water quality index of RO reached the discharge standard of table 2 of “Pollution control standard of municipal solid waste landfill”(GB 16889—2008). NF and RO concentrated water was reduced by DTRO and then reinjected. The harmless treatment of leachate is realized.
Key words:
middle and late stage leachate,
high-stress resistant salt-tolerant bacteria,
membrane concentrate,
external UF,
DTRO
摘要:
以某生活垃圾填埋场(>10 a)渗滤液处理升级改造项目为例,改造后渗沥液处理系统采用“预处理+高抗逆耐盐菌生化+外置式超滤(UF)+纳滤(NF)+两级反渗透(RO)”的组合工艺,RO产水水质指标达到《生活垃圾填埋场污染控制标准》(GB 16889—2008)表2排放标准,NF及RO浓水经碟片式反渗透膜(DTRO)浓缩减量后回灌,实现渗沥液无害化处理。
关键词:
中后期渗沥液,
高抗逆耐盐菌,
膜浓缩,
外置式UF,
碟片式反渗透膜
CLC Number:
Shuang LIU, Chuan XIA, Xiaoyun JIANG, Zhi LI. An engineering case of upgrading and transformation of leachate treatment system in middle and late stage[J]. Industrial Water Treatment, 2022, 42(9): 203-206.
刘双, 夏传, 蒋晓云, 李志. 某中后期垃圾渗沥液处理系统升级改造工程实例[J]. 工业水处理, 2022, 42(9): 203-206.