Determination of water hardness with a complex water hardness indicator

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  • 1. EBARA Qingdao Company, Qingdao 266042, China;
    2. Qingdao Iron & Steel Group, Qingdao 266043, China

Received date: 2002-09-06

  Revised date: 2002-09-06

  Online published: 2010-10-01

Abstract

The water hardness indicator has been studied.The experimental results reveal that it is very easy and quick to determinate the hardness of water sample with the water hardness indicator and colourimetric card.The hardness range is 0 ~ 0.05 mmol /L.The indicator has been used in steam boiler' s water supply and circulating cooling water systems including making of soft water,demineralized water and pure water.Good results have been achieved.

Cite this article

YANG Hongdong, ZHANG Minling . Determination of water hardness with a complex water hardness indicator[J]. Industrial Water Treatment, 2002 , 22(12) : 43 -44 . DOI: 10.11894/1005-829x.2002.22(12).43

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