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浙江大学学报(理学版)  2016, Vol. 43 Issue (2): 231-236    DOI: 10.3785/j.issn.1008-9497.2016.02.019
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不同矿石对反渗透淡化水的调质效果研究
陈红1, 阳旭1, 赵丽芹1, 徐百龙2, 甘树2, 杨岳平1
1. 浙江大学环境工程研究所, 浙江杭州 310027;
2. 浙江至美环境科技有限公司, 浙江杭州 310030
Effect of different ores on water quality adjustment of seawater desalinated by reverse osmosis
CHEN Hong1, YANG Xu1, ZHAO Liqin1, XU Bailong2, GAN Shu2, YANG Yueping1
1. Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027, China;
2. Zhejiang Chimey Environmental Science & Technology Co. Ltd., Hangzhou 310030, China
 全文: PDF(1112 KB)  
摘要: 反渗透海水淡化已成为解决淡水危机的一种有效方法,但反渗透淡化水的化学稳定性差,使用过程中会腐蚀管网,作为饮用水存在一定的健康风险.采用溶解矿石法对反渗透淡化水的水质进行调节.对麦饭石、白云石、石灰石、进口矿石的理化性能(包括成分、物相组成、孔隙率及孔径分布、表面形态)进行了分析,并在此基础上对比分析了4种矿石对反渗透淡化水的调质效果.结果表明,进口矿石经人为加工后孔隙增多,溶出速率明显变快,调质后出水的硬度、碱度、Mg2+质量分数均高出其他3种原矿石50%以上,但其出水pH值过高,Ca2+质量分数低于石灰石,与自来水相比仍有一定差距,未来应致力于研制一种比表面积大、溶解速率快、无需对淡化水酸化而直接调质的调质剂.
关键词: 反渗透淡化水调质溶解矿石    
Abstract: In many places, reverse osmosis seawater desalination plays an important role in solving freshwater crisis. In spite of its superior quality, instability of desalinated water may be corrosive to water distribution systems, thus may pose a threat on human health. To solve this problem, four ores were used to adjust the quality of the desalinated water. The physical and chemical properties of maifanshi, dolomite, limestone and an imported ore, including composition, XRD(X-ray Diffraction), porosity and pore size distribution, surface morphology were analyzed. Based on these properties, the effects of the four ores on water quality adjustment of the desalinated water by reverse osmosis were studied. The results indicate that the porosity and dissolution of the imported ore are improved obviously after the artificial process. The hardness, alkalinity, Mg2+ contents of the import ore are 50% higher than any other ores, while the pH value of the effluent is too high, the Ca2+ content in the effluent is lower than that of limestone. Still, there is a certain gap compared with the tap water. In the future, research should focus on the development of modifying agents with large surface areas and faster dissolution rate, which can adjust the desalinated water without acidifying the influent.
Key words: reverse osmosis desalinated water    water quality adjustment    dissolution of ores
出版日期: 2016-03-12
CLC:  X52  
通讯作者: YANG Yueping,E-mail:yyuep@zju.edu.cn.     E-mail: yyuep@zju.edu.cn
作者简介: CHEN Hong(1991-), ORCID:http://orcid.org/0000-0002-9525-5262, female, master degree, the field of interest is drinking water treatment, E-mail:15062117507@163.com.
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引用本文:

陈红, 阳旭, 赵丽芹, 徐百龙, 甘树, 杨岳平. 不同矿石对反渗透淡化水的调质效果研究[J]. 浙江大学学报(理学版), 2016, 43(2): 231-236.

CHEN Hong, YANG Xu, ZHAO Liqin, XU Bailong, GAN Shu, YANG Yueping. Effect of different ores on water quality adjustment of seawater desalinated by reverse osmosis. Journal of ZheJIang University(Science Edition), 2016, 43(2): 231-236.

链接本文:

https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2016.02.019        https://www.zjujournals.com/sci/CN/Y2016/V43/I2/231

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