By adopting highly pure acid and alkali to substitute industrial acid and alkali for regeneration of ion exchange resin in Pucheng Power-Generation Co Ltd

a good effectiveness has been obtained. The operation practice of more than one year shows that the said method not only obviously improved output water quality of the water treatment equipment

but also enhanced operation safety of the thermal equipments

and lengthened the service life of resins

reducing regeneration cost and blowdown flow

having remarkable economic and environmental benefits.