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High solids mixture aeration method
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Patent number 4,240,905
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Issue date Dec 23, 1980
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Union Carbide Corporation
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Carl Scaccia
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Apparatus for sparging gas into liquid
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Patent number 4,066,722
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Issue date Jan 3, 1978
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Union Carbide Corporation
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John Joseph Pietruszewski
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE