The influence of magnetic fields on calcium carbonate precipitation

被引：101

作者：

Barrett, RA ^{[1
]}

Parsons, SA ^{[1
]}

机构：

[1] Cranfield Univ, Sch Water Sci, Cranfield MK43 0AL, Beds, England

来源：

WATER RESEARCH | 1998年 / 32卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

magnetic treatment; calcium carbonate; nucleation; precipitation; interfacial effect;

D O I：

10.1016/S0043-1354(97)00277-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Laboratory experiments were undertaken to assess the effects of magnetic treatment on calcium carbonate precipitate. Static test solutions of calcium chloride, calcium sulphate and sodium carbonate were placed in a magnetic field. After magnetic treatment the solutions CaCl2/Na2CO3 and CaSO4/Na2CO3 were mixed and changes in precipitation recorded and compared with non-magnetised solutions. The results of this study support earlier work which indicates that magnetic fields may influence the formation of CaCO3 by the suppression of nucleation and acceleration in crystal growth. The "magnetic effect" is maintained for at least 60 h after exposure, and magnetic exposure exerts a greater effect on Na2CO3 than CaCl2. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：609 / 612

页数：4

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