Ion Exchange

Anion exchange resins can be used for removal of sulfate ions. For example, a new deionization method (Kunin and Downing 1971) has shown over 9% efficiency in removing waste ions from acid mine waters. Sulfate ions are removed by an anion exchange resin functioning in the bicarbonate cycle according to the following reaction:

Resin regeneration is accomplished with dilute ammonium hydroxide followed by carbonation with carbon dioxide.

DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

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