反渗透系统中Zn2+对CaCO3结垢的阻滞

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反渗透系统中Zn²⁺对CaCO₃结垢的阻滞

杨庆峰

School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-04-28 发布日期:2006-04-28
通讯作者: 杨庆峰

Inhibition of CaCO₃ Scaling in Reverse Osmosis System by Zinc Ion

YANG Qingfeng

School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-04-28 Published:2006-04-28
Contact: YANG Qingfeng

摘要/Abstract

摘要： Scaling of reverse osmosis (RO) membrane surface is one of the main problems in desalination processes. To mitigate scales, organic anti-scalants are often used. If the dosages of anti-scalants are reduced, by using other much cheaper scale inhibitors, RO running cost will decrease greatly. The present paper investigated the inhibition of CaCO3 precipitation by zinc ions in RO system. The results show that the zinc ion concentration of 2mgL－1 was able to exert a marked suppression effect on both bulk precipitation of CaCO3 and on membrane scaling on waters of moderate hardness.

关键词: reverse osmosis;desalination;scaling inhibition;metal impurities

Abstract: Scaling of reverse osmosis (RO) membrane surface is one of the main problems in desalination processes. To mitigate scales, organic anti-scalants are often used. If the dosages of anti-scalants are reduced, by using other much cheaper scale inhibitors, RO running cost will decrease greatly. The present paper investigated the inhibition of CaCO3 precipitation by zinc ions in RO system. The results show that the zinc ion concentration of 2mgL－1 was able to exert a marked suppression effect on both bulk precipitation of CaCO3 and on membrane scaling on waters of moderate hardness.

Key words: reverse osmosis, desalination, scaling inhibition, metal impurities

杨庆峰. 反渗透系统中Zn²⁺对CaCO₃结垢的阻滞[J]. , DOI: .

YANG Qingfeng. Inhibition of CaCO₃ Scaling in Reverse Osmosis System by Zinc Ion[J]. , DOI: .

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反渗透系统中Zn²⁺对CaCO₃结垢的阻滞

Inhibition of CaCO₃ Scaling in Reverse Osmosis System by Zinc Ion

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