摘要
针对东北某垃圾渗滤液处理厂现有处理工艺的膜浓缩液处置困难的问题,进行一系列实验探究,寻找合适的处理工艺。通过预处理、管式超滤、物料膜、DTRO和低温蒸发等技术的组合,实现产水的达标排放和满足厂区的回用需求。结果表明采用“软化除硬+管式超滤+物料膜+DTRO减量+低温蒸发”组合工艺处理具有一定的稳定性和可行性,物料膜、DTRO、低温蒸发的回收率分别控制为98%、85%、80%,运行压力相对较低,软化除硬所产生的化学污泥量为3.3 kg/吨水。该研究结果可为垃圾渗滤液膜浓缩液的处理提供参考。
In view of the difficulties in the disposal of membrane concentrate in a landfill leachate treatment plant in Northeast China,a series of experiments were carried out to find an appropriate treatment process.Through the combination of pretreatment,tubular ultrafiltration membrane,material membrane,DTRO,low temperature evaporation and other technologies,to achieve the standard discharge of produced water and meet the needs of plant reuse.The results show that the combined process of“softening and dehardening+tubular ultrafiltration membrane+material membrane+DTRO reduction+low temperature evaporation”has certain stability and feasibility.The recovery rates of material film,DTRO and low temperature evaporation are controlled as 98%,85%and 80%respectively,and the operating pressure is relatively low.The amount of chemical sludge produced by softening and removing hardening is 3.3 kg/t water.The results can provide reference for the treatment of landfill leachate membrane concentrate.
作者
张文贞
王少东
陈福达
陈梁超
林科堡
Zhang Wenzhen;Wang Shaodong;Chen Fuda;Chen Liangchao;Lin Kebao(Guanghuan Jiangdong Environmental Protection Energy(Maanshan)Co.,Ltd.,Maanshan 243000;Xiamen Jiarong Technology Co.,Ltd.,Xiamen 361100,China)
出处
《广东化工》
CAS
2024年第1期103-107,共5页
Guangdong Chemical Industry
关键词
垃圾渗滤液
膜浓缩液
膜处理
低温蒸发
预处理
landfill leachate
membrane concentrate
membrane treatment
low temperature evaporator
pretreatment
