热泵耦合增湿去湿处理渗滤液浓缩液的中试研究  

Pilot study on heat pump coupled humidification-dehumidification for concentrated leachate treatment

作　　者：杨吉祥 杨金兵 尹龙天 董健 YANG Jixiang;YANG Jinbing;YIN Longtian;DONG Jian(Beijing Capital Environmental Technology Co.,Ltd.,Beijing 100037,China;First Branch,Beijing Capital Environmental Technology Co.,Ltd.,Beijing 100037,China)

机构地区：[1]北京首创环境科技有限公司,北京100037 [2]北京首创环境科技有限公司第一分公司,北京100037

出　　处：《工业水处理》2025年第2期144-149,共6页Industrial Water Treatment

摘　　要：渗滤液浓缩液是一种高盐、高有机物含量和具有难降解特性的废水,其处理难度极大,已成为渗滤液处理中的一道难题。结合热泵技术和增湿去湿(HDH)技术的优点,提出一种基于热泵耦合HDH的渗滤液浓缩液处理新方法,并进行中试研究,旨在验证其在实际应用中的可行性和优缺点。试验结果表明,热泵耦合HDH技术对渗滤液浓缩液的处理效果显著。在处理过程中,脱盐率、有机物去除率和酸性条件下的氨氮去除率分别达到99.5%、98.2%和67.8%,处理后产水水质能够满足回用和排放标准,同时,原水浓缩倍率达到20,减量化效果明显。技术经济分析表明,热泵耦合HDH技术投资为8.76万元/t,运行成本为54.47元/t,与其他蒸发技术相比,具有节省投资及运行成本的优势。Concentrated leachate is a type of wastewater with high salt content,high organic matter content,and diffi-cult degradation characteristics.Its treatment is extremely difficult and has become a difficult problem in leachate treatment.This article combined the advantages of heat pump technology and humidification-dehumidification(HDH)technology to propose a new method for treating concentrated leachate based on heat pump coupled HDH technology.A pilot study was conducted to verify its feasibility and advantages and disadvantages in practical applications.The ex-perimental results showed that the heat pump coupled with HDH technology had a significant effect on the treatment of concentrated leachate.During the treatment process,the desalination rate,organic matter removal rate,and ammonia-nitrogen removal rate under acidic conditions reached 99.5%,98.2%,and 67.8%,respectively.The treated condensate water quality could meet the standards for reuse and discharge.At the same time,the concentration rate of the raw water reached 20 times,indicating a significant reduction effect.Economic analysis showed that,the invest-ment of heat pump coupled HDH technology was 87600 yuan/t,and the operating cost was 54.47 yuan/t.Compared with other evaporation technologies,it had the advantage of saving investment and operating costs.

关 键 词：渗滤液浓缩液 增湿去湿 蒸发 脱盐率 热泵 

分 类 号：X7[环境科学与工程—环境工程]