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公开(公告)号：EP1106237A1
公开(公告)日：2001-06-13
申请号：EP00925662.9
申请日：2000-05-15
发明人： YOSHIOKA, Atsushi, Mitsubishi Heavy Industr., Ltd. , IWASHITA, Koichiro, Mitsubishi Heavy Indus., Ltd. , OCHI, Eiji, Mitsubishi Heavy Industries, Ltd. , SHINODA, Takeo, Mitsubishi Heavy Industries, Ltd. , OKINO, Susumu, Mitsubishi Heavy Industr., Ltd. , KAMIYOSHI, Hideki, Shinryo High Technologies, Ltd. , BABA, Hiroshi, Shinryo High Technologies, Ltd. , ITO, Tetsuya, Shinryo High Technologies, Ltd. , ENDO, Atsumasa, Shinryo High Technologies, Ltd. , NISHIDA, Morikata, Shinryo High Technologies, Ltd.
CPC分类号： C02F9/00 , B01D53/1425 , B01D53/50 , B01D53/501 , B01D53/73 , C02F1/283 , C02F1/42 , C02F1/44 , C02F1/444 , C02F1/52 , C02F1/5236 , C02F1/56 , C02F1/64 , C02F1/66 , C02F1/683 , C02F1/70 , C02F1/72 , C02F1/725 , C02F1/74 , C02F1/76 , C02F1/766 , C02F2101/10 , C02F2101/20 , C02F2103/18 , C02F2209/04 , C02F2209/06 , C02F2303/185
摘要： The present invention provides a desulfurization waste water treatment method for treating waste water discharged from a wet type flue gas desulfurizer for absorbing and separating sulfur oxide in combustion flue gas by using a wet lime-gypsum process, wherein after hypochlorite is added to the waste water, the pH value is adjusted to 7 to 9.5, and the waste water is subjected to solid-liquid separation; and a flue gas desulfurization method using a wet lime process for treating flue gas containing sulfur oxide and nitrogen oxide, comprising an oxidation process in which the pH value of all or some of filtrate is adjusted to 3 to 4 and an oxidizing agent is added after some of absorbent slurry in a desulfurization process is extracted and gypsum is separated, a neutralization process in which an alkaline agent is mixed with the mixed liquid to adjust the pH value to 7 to 9.5, and a solid-liquid separation process in which the neutralized adjusted liquid is subjected to solid-liquid separation. According to the present invention, NS compounds having an adverse influence on the desulfurization performance can be removed effectively, and at the same time, heavy metals, especially manganese, in desulfurization waste water can be removed favorably in terms of economy as well.
摘要翻译： 本发明提供了一种脱硫废水处理方法，用于处理湿式烟气脱硫剂排放的废水，用湿法石膏 - 石膏法吸附分离燃烧废气中的硫氧化物，其中将次氯酸盐加入到废水中 ，将pH值调节至7〜9.5，对废水进行固液分离; 以及使用湿法石灰法处理含有硫氧化物和氮氧化物的烟道气的烟道气脱硫方法，其包括氧化过程，其中将全部或部分滤液的pH值调节至3〜4，并在氧化剂之后加入氧化剂 提取脱硫工序中的一部分吸收剂浆料，分离石膏，将碱剂与混合液混合，将pH值调整为7〜9.5的中和工序，以及中和后的固液分离工序 调整后的液体进行固液分离。 根据本发明，可以有效地去除对脱硫性能具有不利影响的NS化合物，同时在经济性方面可以有利地去除脱硫废水中的重金属，尤其是锰。
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公开(公告)号：EP1106237B1
公开(公告)日：2004-10-13
申请号：EP00925662.9
申请日：2000-05-15
发明人： YOSHIOKA, Atsushi, Mitsubishi Heavy Industr., Ltd. , IWASHITA, Koichiro, Mitsubishi Heavy Indus., Ltd. , OCHI, Eiji, Mitsubishi Heavy Industries, Ltd. , SHINODA, Takeo, Mitsubishi Heavy Industries, Ltd. , OKINO, Susumu, Mitsubishi Heavy Industr., Ltd. , KAMIYOSHI, Hideki, Shinryo High Technologies, Ltd. , BABA, Hiroshi, Shinryo High Technologies, Ltd. , ITO, Tetsuya, Shinryo High Technologies, Ltd. , ENDO, Atsumasa, Shinryo High Technologies, Ltd. , NISHIDA, Morikata, Shinryo High Technologies, Ltd.
CPC分类号： C02F9/00 , B01D53/1425 , B01D53/50 , B01D53/501 , B01D53/73 , C02F1/283 , C02F1/42 , C02F1/44 , C02F1/444 , C02F1/52 , C02F1/5236 , C02F1/56 , C02F1/64 , C02F1/66 , C02F1/683 , C02F1/70 , C02F1/72 , C02F1/725 , C02F1/74 , C02F1/76 , C02F1/766 , C02F2101/10 , C02F2101/20 , C02F2103/18 , C02F2209/04 , C02F2209/06 , C02F2303/185
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