Water treatment for selective removal of nitrates
    2.
    发明授权
    Water treatment for selective removal of nitrates 失效
    用于选择性去除硝酸盐的水处理

    公开(公告)号:US4267057A

    公开(公告)日:1981-05-12

    申请号:US113354

    申请日:1980-01-18

    IPC分类号: C02F1/28

    CPC分类号: C02F1/283 Y10S210/903

    摘要: Water is treated to selectively remove substantially all of the nitrates present. This selective removal of nitrates is accomplished by adjusting the pH of the water to be treated, if necessary, to a pH of less than 8, and then passing the pH-controlled water through activated carbon. In one of the preferred embodiments, the spent activated carbon is substantially completely regenerated by backwashing to permit reuse of the carbon.

    摘要翻译: 处理水以选择性地除去存在的所有硝酸盐。 硝酸盐的这种选择性去除是通过将需要处理的水的pH值调节到小于8的pH值,然后将pH控制的水通过活性炭来完成的。 在优选实施方案之一中,废活性炭通过反冲洗基本上完全再生以允许碳的再利用。