Plant for the anaerobic purification of waste water
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United States of America Patent
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Nov 11, 1986
Grant Date -
N/A
app pub date -
Mar 3, 1986
filing date -
Mar 6, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to achieve an essentially turbulence-free zone near the means (11) for the discharge of purified water in an anaerobic purification plant for waste water with a fermentation chamber, a settler disposed above the latter and the said discharge means (11) disposed above the settler, the settler consists of three levels of gas-collection hoods (2, 3, 4), each gas-collection hood of the uppermost level (4) being sited directly above a gas-collection hood of the lowermost level (2), each gas-collection hood of the lowermost level (2) being connected via one or more pipes with a gas-collection hood of the uppermost level (4), and the gas-collection hoods of the uppermost and middle level (4 or 3 respectively) having a direct connection to the gas-discharge line (15).
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