Aqueous phase removal of nitrogen from nitrogen compounds
    2.
    发明授权
    Aqueous phase removal of nitrogen from nitrogen compounds 失效
    从氮化合物中去除氮的水相脱除

    公开(公告)号:US5221486A

    公开(公告)日:1993-06-22

    申请号:US685259

    申请日:1991-04-12

    摘要: A method is disclosed for denitrification of compounds containing nitrogen present in aqueous waste streams. The method comprises the steps of (1) identifying the types of nitrogen compounds present in a waste stream, (2) determining the concentrations of nitrogen compounds, (3) balancing oxidized and reduced form of nitrogen by adding a reactant, and (4) heating the mixture to a predetermined reaction temperature from about 300.degree. C. to about 600.degree. C., thereby resulting in less harmful nitrogen and oxygen gas, hydroxides, alcohols, and hydrocarbons.

    摘要翻译: 公开了一种用于使存在于含水废物流中的含氮化合物脱氮的脱氮的方法。 该方法包括以下步骤:(1)确定存在于废物流中的氮化合物的类型,(2)确定氮化合物的浓度,(3)通过加入反应物平衡氧化和还原形式的氮,和(4) 将混合物加热到约300℃至约600℃的预定反应温度,从而导致较少有害的氮和氧气,氢氧化物,醇和烃。

    Sewage treatment method
    3.
    发明授权
    Sewage treatment method 失效
    污水处理方法

    公开(公告)号:US5433868A

    公开(公告)日:1995-07-18

    申请号:US118707

    申请日:1993-09-09

    摘要: The invention greatly reduces the amount of ammonia in sewage plant effluent. The process of the invention has three main steps. The first step is dewatering without first digesting, thereby producing a first ammonia-containing stream having a low concentration of ammonia, and a second solids-containing stream. The second step is sending the second solids-containing stream through a means for separating the solids from the liquid and producing an aqueous stream containing a high concentration of ammonia. The third step is removal of ammonia from the aqueous stream using a hydrothermal process.

    摘要翻译: 本发明大大降低了污水处理厂废水中氨的含量。 本发明的方法有三个主要步骤。 第一步是在没有首先消化的情况下脱水,从而产生具有低浓度氨的第一含氨物流和第二含固体物流。 第二步是通过用于将固体与液体分离并产生含有高浓度氨的水流的装置来送出第二含固体物流。 第三步是使用水热法从水流中除去氨。