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["Reciclado de ácido clorrico/sulfúrico",,"Ub base en Yunnan, después de la extracción de medicinas chinas, se,生成的pH约为

2020-03-13View Original

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坐标云南,中药提取后产生PH为2左右的盐酸/硫酸性废液,浓度估计百分之零点几,量各在10t/天,给污水造成很大压力,求回收的解决方案,不知道可不可以回收,跪谢。
Reply #22020-03-18
硫酸可以用钠滤膜进行回收,回收后的滤液经过RO进行回收盐酸,这样可以减少80%的量
Reply #32020-03-18
去年问的硫酸浓度能回收到12%左右GE的膜好像,回收率90%左右,现在进展如何了?方便告知么
Reply #42020-03-19
膜现在没问题,现在高压泵有点问题,泵腐蚀有点严重
Reply #52020-03-20
盐酸可以用减压精馏的方式,将盐酸中的水脱出去。将酸浓度提高到恒沸酸浓度,塔顶基本不含酸。硫酸也用提浓的办法,现在的硫酸提浓技术还是比较成熟
Reply #62020-04-02
问了一圈,浓度太低了,才千分之几,要投入能源,现在硫酸才几百元一吨,不划算。提浓的建议10%以上才划算,或者酸里有铁等金属副产品。
Reply #72020-04-11
30%--40%的硫酸浓度提高75%浓度的成本有多高?
Reply #82020-04-11
30%--40%的硫酸浓度提高75%浓度的成本有多高?

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