接触式蒸发处理垃圾渗滤液膜浓缩液试验研究  

Experimental study on treating landfill leachate membrane concentrate by contact evaporation

作　　者：戚二兵 黄亚继[1] 袁琦[1,2] 胡华军 樊聪慧[1] 丁守一 Qi Erbing;Huang Yaji;Yuan Qi;Hu Huajun;Fan Conghui;Ding Shouyi(Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education,Southeast University,Nanjing 210096,China;Everbright Environmental Protection Technology Research Institute(Nanjing)Co.,Ltd.,Nanjing 211000,China)

机构地区：[1]东南大学能源热转换及其过程测控教育部重点试验室,江苏南京210096 [2]光大环保技术研究院(南京)有限公司,江苏南京211000

出　　处：《工业水处理》2021年第2期38-42,共5页Industrial Water Treatment

基　　金：国家重点研发计划项目(2018YFC1901200)。

摘　　要：采用接触式蒸发处理垃圾渗滤液纳滤膜浓缩液,考察了气体温度、气体流量、初始pH和蒸发率对冷凝液水质的影响。结果表明:随着气体温度的增加,稳定蒸发温度不断提高,冷凝液COD先降低后升高,而NH3-N先升高后降低;随着气体流量的增加,冷凝液COD先降低后升高,而NH3-N不断增加;随着初始pH的升高,冷凝液COD降低,而NH3-N则相反。蒸发初期,冷凝液COD及NH3-N较高,随蒸发率的提高,其含量不断降低,并在末期有所提高;蒸发初期和末期气体夹带较为显著。The nanofiltration membrane concentrate of landfill leachate was treated by contact evaporation,and the influence of gas temperature,gas flow,initial pH and evaporation rate on the condensate water quality was investigated.The results showed that as the gas temperature rose,the liquid phase stable evaporation temperature kept increasing,the condensate COD first decreased and then increased,while NH3-N first increased and then decreased.The gas flow increased,the condensate COD first decreased and then increased,while NH3-N kept increasing.The initial pH increased,the condensate COD decreased,while NH3-N increased.The condensate COD and NH3-N were higher in the initial stage of evaporation,and with the increase of evaporation rate,the content kept decreasing,and increased at the end.Gas entrainment was obvious at the beginning and end of evaporation.

关 键 词：垃圾渗滤液 膜浓缩液 接触式蒸发 冷凝液 

分 类 号：X703[环境科学与工程—环境工程]