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Denitrification system
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Patent number 5,232,585
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Issue date Aug 3, 1993
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Infilco Degremont Inc.
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Peter E. Kanow
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Denitrification methods
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Patent number 5,211,847
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Issue date May 18, 1993
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Infilco Degremont Inc.
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Peter E. Kanow
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE