TREATMENT OF PRODUCED WATER
    1.
    发明申请

    公开(公告)号:US20220315462A1

    公开(公告)日:2022-10-06

    申请号:US17642206

    申请日:2020-09-10

    IPC分类号: C02F1/74 C02F1/66 C02F9/00

    摘要: A method of treating contaminated water that has ferrous ions and at least one additional mineral in solution includes the steps of: adding a sufficient quantity of a caustic agent to the contaminated water to achieve a basic pH, and adding oxygen to the contaminated water to achieve a molar ratio of oxygen to ferrous iron of at least 1:10. The pH and the oxygen concentration are sufficient to produce ferrous hydroxide (Fe(OH)2) from ferrous ions and ferric hydroxide (Fe(OH)3) from the ferrous hydroxide while limiting colloidal iron formation, at least the ferric hydroxide forming a precipitate. The precipitate is separated from the contaminated water.