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CN105923838A 一种炼油废水深度处理回用的方法 无效 - 驳回

一种炼油废水深度处理回用的方法
摘要：
本发明涉及一种炼油废水深度处理回用的方法。其技术方案是：先向生化后的炼油废水中加入15~25mg/L的无机/有机复合混凝剂进行混凝，去除炼油废水中的胶体和残留的大分子有机物。再将混凝后的炼油废水泵入臭氧催化氧化塔，臭氧催化氧化塔内置有以硝酸锰、二氧化钛和硝酸铜为活性组分的陶粒催化剂；然后通入臭氧气体，保持液相中的臭氧浓度为25~35mg/L，反应时间为12~15min。最后将臭氧催化氧化后的炼油废水泵入聚偏氟乙烯管式膜超滤膜组件，聚偏氟乙烯管式膜超滤膜组件的出水作为炼油厂循环冷却水的补充水回用。本发明具有工艺简单、COD脱除效率高、运行成本低和无二次污染物产生的特点。
摘要（英）：

The invention relates to a method for deep processing and recycling oil refining wastewater. A technical scheme of the invention includes: adding 15-25 mg/L inorganic/organic composite coagulant into biochemically-treated oil refining wastewater for coagulating, and removing colloid and residual macromolecular organics in the oil refining wastewater; pumping the coagulated oil refining wastewater into an ozone catalytic oxidation column, wherein a ceramsite catalyst using manganese nitrate, titanium dioxide and copper nitrate as active ingredients is disposed in the ozone catalytic oxidation column; introducing ozone gas, keeping ozone concentration in a liquid phase under 25-35 mg/L, and reacting for 12-15 min; finally, pumping the oil refining wastewater subjected to ozone catalytic oxidation into a polyvinylidene fluoride tubular-membrane ultrafiltration membrane assembly, and using effluent of the polyvinylidene fluoride tubular-membrane ultrafiltration membrane assembly as supplementary water of recirculating cooling wat4er of a refinery for refuse.

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