发明名称 |
Emission reduction of organic volatiles from aerobic biological reactors |
摘要 |
An aerobic treatment of waste water is accomplished in such a manner as to effectively reduce the emission of volatile organic compounds contained therein by first re-introducing oxygen containing gas previously used in the process as supplemented with additional oxygen containing gas to fulfill make-up requirements during the operation. The reuse is effected in an enclosed vessel having a lower sparging compartment within which both a suitable quantity of mixed reused and make-up gas is thoroughly mixed with contaminated waste water being introduced therein for treatment. The thus humidified gas and preliminarily treated waste water are then moved upwardly within and through a central biological growth area, and the treated waste water is formed as a liquid level in an upper compartment and removed through a trap therefrom to maintain a water level therein and collect the resultant treated oxygen containing gas above the water level. A portion of the oxygen containing gas containing volatiles therein may be vented and the main portion that is released above the water level is continuously removed from a chamber area above the water level, and progressively mixed with a suitable quantity of make-up oxygen containing gas, and then introduced into the sparging chamber for continuing the operation.
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申请公布号 |
US5298164(A) |
申请公布日期 |
1994.03.29 |
申请号 |
US19920920781 |
申请日期 |
1992.07.28 |
申请人 |
UNITED STATES FILTER CORPORATION |
发明人 |
HAPACH, GARY S.;KARRS, STANLEY R.;ONDRUSEK, KENNETH E. |
分类号 |
B01J19/30;C02F3/06;C02F3/14;(IPC1-7):C02F3/06 |
主分类号 |
B01J19/30 |
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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