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    • 10. 发明申请
    • METHOD FOR RECYCLING WASTE WATER FROM A STAINLESS STEEL SLAG TREATMENT PROCESS
    • 从不锈钢渣处理工艺回收废水的方法
    • US20140241979A1
    • 2014-08-28
    • US14351937
    • 2012-10-22
    • RECMIX BELGIUM
    • Dirk Van MechelenMieke QuaghebeurPeter Nielsen
    • C01B3/08
    • C01B3/08B09B3/00B09B3/0041B09B2220/06C04B18/021Y02E60/36Y02W30/92Y02W30/94C04B18/06C04B18/142
    • The present invention relates to method for recycling alkaline waste water from a stainless steel slag treatment process wherein stainless steel slag is brought into contact with water thereby producing said waste water, which waste water contains heavy metals, including at least chromium, and has a pH of at least 12. The waste water is recycled by using it for treating an alkaline granular carbonatable material, which contains aluminium metal, in order to oxidise the aluminium metal contained therein. This material is in particular municipal waste incinerator bottom ash which can, after the treatment of the present invention, safely be used as fine or coarse aggregate in bonded applications such as concrete, mortar and asphalt. During the treatment with the alkaline waste water, hydrogen gas is produced which is captured and used to produce energy by means of a cogeneration device.
    • 本发明涉及从不锈钢渣处理方法回收碱性废水的方法,其中不锈钢渣与水接触,从而产生所述废水,该废水含有至少包含铬的重金属,并具有pH 废水通过使用它来再循环,用于处理含有铝金属的碱性颗粒状​​可碳化材料,以便氧化其中所含的铝金属。 该材料特别是城市垃圾焚烧炉底灰,在本发明的处理之后,在粘结应用如混凝土,砂浆和沥青中可以安全地用作细骨料或粗骨料。 在用碱性废水处理的过程中,产生氢气,其被捕获并用于通过热电联产装置产生能量。