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Fenton questions regarding chromium-containing wastewater

2015-07-02View Original

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For chromium-containing wastewater at pH 2–3, should ferrous ions be used first to reduce hexavalent chromium, and then the Fenton process be applied to reduce COD? Should Fenton be used first to reduce COD, and then ferrous ions to reduce hexavalent chromium? Which method is better for reducing COD, placing the two agents before or after? There are no conditions for conducting pilot tests at the moment; I can only hope that everyone will help to clarify things

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