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The comprehensive treatment of coking wastewater was studied on industrial scale. Satisfactory results were obtained by adding Fe polysulfate and cationic polyacrylamide to second grit chamber, and treating with coke and activated C using available biological facilities in coking factory under conventional operating conditions. The water quality was improved significantly after the comprehensive...
The method and condition of determining the dissolution and extraction of total potassium, slow-acting and quick-acting potassium in peat were studied by atom absorption in this paper. The method has good effect. The mean rate of recovery is 97-103%, and the relative standard deviation of determination is less than 3%.
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