分子量和组成成分在渗滤液处理工艺中的变化

The changes of MW and components in the leachate treatment process

南方某垃圾焚烧厂产生的渗滤液采用“进水—厌氧—SBR—混凝—出水”的工艺进行处理。通过对各工艺单元出水进行分子量区分,并且测试各分子量区间的COD;测试渗滤液的组成成分在各工艺单元的含量。结果表明:该处理工艺对不同分子量区间COD去除效果较好,尤其对分子量<2k,去除率可达99%;对渗滤液的DOM组成成分腐殖酸(HA)、富里酸(FA)和亲水性有机质(HyI)的去除效果较好,去除率均达到88%以上。

The leachate from an incineration plant in South China was treated in the following process: raw water- anaerobic-SBR-coagulation-effluent. The COD of different MW ranges was tested, the DOM components were also tested. The process had perfect removal rates for COD in all the molecular weight (MW) ranges. Especially, the removal rate could achieve 99% for MW <2 k. The treatment process had 88% high removal rates for the hunic acid (HA)、fulic acid (FA) and HyI.