摘要
针对进水温度影响膜法海水淡化系统运行产水效率等问题,采用气浮-超滤-反渗透工艺开展海水淡化中试试验。现场中试期间,海水温度由3℃逐步升高至13℃,原海水平均进水浊度约7 NTU。中试结果表明:气浮出水浊度小于3 NTU,超滤出水浊度小于0.3 NTU,预处理系统运行状况良好。反渗透系统回收率为40%,膜通量由8.9L/(m^(2)·h)逐步提高至14.7 L/(m^(2)·h),反渗透系统运行稳定,系统进水压力随温度升高而逐步降低。
A pilot study was conducted on a seawater desalination system using an air flotation–ultrafiltration–reverse osmosis process to address operational challenges posed by fluctuations in inlet water temperature.During the field test,the seawater temperature increased gradually from 3℃to 13℃,and the average turbidity of the raw seawater inlet was approximately 7 NTU.The results showed that the turbidity of the air-flotation effluent remained below 3 NTU,while the turbidity of the ultrafiltration effluent was maintained below 0.3 NTU,indicating stable performance of the pretreatment system.Operating at a recovery rate of 40%,the reverse osmosis membrane flux rose from 8.9 L/(m^(2)·h)to 14.7 L/(m^(2)·h),and the system operated steadily as the inlet pressure decreased with rising temperature.
作者
李良浩
潘丛丛
张受卫
徐兆郢
李海燕
刘瑞春
LI Lianghao;PAN Congcong;ZHANG Shouwei;XU Zhaoying;LI Haiyan;LIU Ruichun(State Nuclear Electric Power Planning Design&Reaearch Institute,Beijing 100905,China;Xi'an TPRI Water-Management&Environmental Protection Co.,Ltd.,Xi'an 710000,China;Xi'an Yitong Thermal Technology Service Co.,Ltd.,Xi'an 710000,China;State Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage,Beijing 102200,China)
出处
《水处理技术》
北大核心
2025年第8期129-132,共4页
Technology of Water Treatment
关键词
气浮
超滤
反渗透
海水淡化
air flotation
ultrafiltration
reverse osmosis
desalination
