摘要
反渗透海水淡化水的质量直接反映了反渗透海水淡化装置整套性能的好坏,并对反渗透海水淡化水的应用起决定性作用。讨论了反渗透海水淡化水的3项重要指标--电导率、氯化物及硼。通过实际水样的分析,综合考虑国内外饮用水标准,反渗透海水淡化发展的技术水平、淡化水应用现状、投资成本等因素,反渗透海水淡化水市政应用的电导率建议值≤1000μS/cm(25℃);氯化物的建议值≤200 mg/L,上限值为250 mg/L;硼则划分为三种情况,硼浓度≤0.5 mg/L时可直接供人饮用,硼浓度≤1.0 mg/L时可作为掺混水源进入市政管网,硼浓度≤2.4 mg/L时可作为淡水补充水源的市政用水。这3项水质指标数值的提出,将促进反渗透海水淡化行业朝着健康有序的方向规模化发展,为反渗透海水淡化水的应用提供数据支撑。
Quality of product water from seawater reverse osmosis desalination not only directly reflects the performance of the device but also plays a decisive role in the application of the product water.In this paper,three important indicators of the water including conductivity,chloride and boron were discussed.Indicators values of the product water were considered from the development of seawater reverse osmosis technique,application of product water,health effects,cost of investment,and the update drinking water quality standards.The quality criteria of the desalinated water was suggested as follows:conductivity≤1000μS/cm(25℃),chloride≤200 mg/L(the maximum limit is 250 mg/L);when the concentration of boron is≤0.5 mg/L,≤1.0 mg/L,≤2.4 mg/L,the product water can be used for human drinking water,a mixed water source to enter the municipal pipe network,freshwater replenishment source,respectively.The proposed values of these three indexes will help to provide technical support for the improvement of reverse osmosis desalination process and to provide reliable basis for further application of the desalinated water.
作者
王晓楠
刘小骐
刘昱
马明远
WANG Xiao-nan;LIU Xiao-qi;LIU Yu;MA Ming-yuan(The Institute of Seawater Desalination and Multipurpose Utilization,MNR,Tianjin 300192,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2019年第22期10-13,19,共5页
China Water & Wastewater
基金
2016年中央级公益性科研院所基本科研业务费专项资金项目(K-JBYWF-2016-T15)
关键词
海水淡化
反渗透
电导率
氯化物
硼
seawater desalination
reverse osmosis
conductivity
chloride
boron
