Simple process for hardening desalinated water with Mg2+ ions

被引：8

作者：

Hasson, David ^{[1
]}

Semiat, Raphael ^{[1
]}

Shemer, Hilla ^{[1
]}

Priel, Menachem

Nadav, Nissim

机构：

[1] Technion Israel Inst Technol, Rabin Desalinat Lab, Haifa, Israel

来源：

DESALINATION AND WATER TREATMENT | 2013年 / 51卷 / 4-6期

关键词：

Desalinated water; Hardening; Magnesium; Magnesia dissolution; Kinetic model; POSTTREATMENT PROCESS; CRITERIA;

D O I：

10.1080/19443994.2012.707375

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A simple easily controlled technique for adding Mg2+ ions to desalinated water is described. The Israeli Health Authority recommendation of adding of 20-30 mg/L of Mg2+ can be readily met by dissolution of magnesia pellets in a packed bed column. Experimental data are presented showing the effects of the specific flow velocity and CO2 acidification of the inlet desalinated water on the Mg2+ concentration in the product stream leaving the column. Acidification of the inlet feed water is shown to enhance considerably the dissolution process. A kinetic expression is presented enabling full design of a dissolution packed column with nonacidified water.

引用

页码：924 / 929

页数：6

共 8 条

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