DTRO处理垃圾渗滤液的影响因素及优化

发布时间：2018-04-05 23:30

  本文选题：渗滤液　切入点：碟管式反渗透　出处：《中国给水排水》2017年15期

【摘要】：采用碟管式反渗透(DTRO)系统处理西南地区某生活垃圾填埋场渗滤液,在10个月的运行期间内,对膜系统运行压力、水温、渗滤液电导率、脱盐率等指标之间的相互影响进行机理分析并提出了优化方法。试验结果表明,系统运行期间各项污染物控制指标均达标。填埋场垃圾渗滤液电导率呈上升趋势,由16.14 m S/cm上升至31.63 m S/cm,一级DTRO运行压力由35.33×10~5Pa上升至53.70×10~5Pa。系统运行效率与温度有关,渗滤液温度低于14℃时,运行压力进入峰值区,压力最高值超出正常趋势约25%。在压力峰值区间,一级DTRO脱盐率达到最高值,为97.73%。低温天气时可利用填埋场废气热值以及太阳能、地热能加热渗滤液,以改善系统运行性能。
[Abstract]:The leachate of a municipal solid waste landfill in southwest China was treated with a dish tube type reverse osmosis (DTRON) system. During the operation period of 10 months, the membrane system was operated under pressure, water temperature and leachate conductivity.The mechanism of the interaction between desalinization rate and other indexes was analyzed and the optimization method was put forward.The test results show that all pollutant control indexes are up to standard during the operation of the system.The electrical conductivity of landfill leachate increased from 16.14 m S/cm to 31.63 Ms / cm, and the first stage DTRO operating pressure increased from 35.33 脳 10~5Pa to 53.70 脳 10 ~ (5) Pa.The operating efficiency of the system is related to the temperature. When the leachate temperature is below 14 鈩，

本文编号：1717001