Effect of Cathode Current Density on Scale Generated by Electrochemical Scale Removal Technique

doi:10.7652/xjtuxb201307009

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Effect of Cathode Current Density on Scale Generated by Electrochemical Scale Removal Technique

更新时间：2025-07-09

- Effect of Cathode Current Density on Scale Generated by Electrochemical Scale Removal Technique
- Vol. 47, Issue 7, Pages: 47-51(2013)
- 作者机构：
  
  西安交通大学环境科学与工程系,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201307009
  CLC： TQ085
- Online First：10 July 2013，
  
  Published：2013
- 稿件说明：
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Effect of Cathode Current Density on Scale Generated by Electrochemical Scale Removal Technique[J]. 2013, 47(7): 47-51.
DOI：

Effect of Cathode Current Density on Scale Generated by Electrochemical Scale Removal Technique[J]. 2013, 47(7): 47-51. DOI： 10.7652/xjtuxb201307009.

摘要

针对不同阴极电流密度下生成的水垢样品

通过扫描电镜及X射线衍射技术分析了样品表面形貌与晶型组成。结果显示:加电过程会极大地改变水垢的形貌及晶型

使其由不加电时100%方解石水垢转变为以文石占主要成分的混合水垢; 在15 A/m

及20 A/m

低电流密度下生成的水垢中文石的质量分数分别为90.23%及82.65%

远超过50 A/m

高电流密度情况(69.37%)

且形貌上也有所改变

表明阴极电流密度不仅会影响水垢的宏观处理效果

也会影响微观形貌及结构组成。该结果可为电化学除垢技术研究提供参考。

Abstract

Scale samples generated by different cathodic current densities were characterized by scanning electron microscope and the X-ray diffraction method to analyze their surface morphology and polymorph composition. The results show that the electrochemical treatment would greatly change the scale morphologies and crystalline form. The scale sample changed from pure calcite powder without electrolysis to the mixed powder after electrolysis

in which the aragonite form was dominant. The mass fractions of aragonite form in the mixed powder were 90.23% and 82.65% for the samples generated at 15 A/m

and 20 A/m

respectively

more than 69.37% for the sample generated at 50 A/m

. Moreover

the morphology of the samples was quite different. These results indicate that the cathodic current den

sity can not only influence the macro effect of scale removal treatment

but also change the micro morphology

the structure

and the composition of the generated scale.

关键词

Keywords

references

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