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Heavy metals removal
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Patent number 5,651,895
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Issue date Jul 29, 1997
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Envirocorp Services & Technology
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Ronnie D. Gordon
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Acid wastewater treatement
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Patent number 5,645,730
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Issue date Jul 8, 1997
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Envirocorp Services & Technology, Inc.
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Edward Malachosky
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Antifreeze purification
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Patent number 5,474,684
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Issue date Dec 12, 1995
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Envirocorp Services & Technology, Inc.
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Ronnie D. Gordon
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE