How can refinery wastewater be treated to reduce COD from 100 mg/L to 50 mg/L?

2007-12-27View Original

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Experts, the COD level of my refinery wastewater is around 100 mg/L; what treatment process combination can be used to reduce it to 50 mg/L? The current process involves: an oil separation tank using a double-tank design, flotation processes consisting of Wo’ao air flotation and dissolved air flotation, combined aeration tanks, and Oberle oxidation ditches. The ammonia nitrogen emission concentration is around 40; the future emission standard will be 25. Additionally, the chloride ion concentration is around 300. Please give me some advice!!! This post was last edited by lcha_127 on 2007-12-27 at 16:52.]

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How can refinery wastewater be treated to reduce COD from 100 mg/L to 50 mg/L?

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