发明名称 |
SELENIUM REMOVAL USING CHEMICAL OXIDATION AND BIOLOGICAL REDUCTION |
摘要 |
Selenium in the form of a reduced species such as selenocyanate is oxidized to produce an oxidized selenium species such as selenate or selenite, and then a biological reduction process is used to remove selenium from the oxidized selenium species. In an example, a chemical oxidant is added to a wastewater containing selenocyanate to produce selenate and selenite. The partially treated wastewater is then fed to a reactor containing a fixed media supporting a biofilm with selenium reducing organisms. The selenium in the selenate and selenite is reduced to an insoluble form of selenium, such as elemental selenium, which precipitates from the wastewater. |
申请公布号 |
WO2012018442(A3) |
申请公布日期 |
2012.04.26 |
申请号 |
WO2011US40814 |
申请日期 |
2011.06.17 |
申请人 |
ZENON TECHNOLOGY PARTNERSHIP;PICKETT, TIMOTHY, MICHAEL;MA, YANGUO;SONSTEGARD, JILL |
发明人 |
PICKETT, TIMOTHY, MICHAEL;MA, YANGUO;SONSTEGARD, JILL |
分类号 |
C02F1/72;C02F1/52;C02F1/58;C02F9/14 |
主分类号 |
C02F1/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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