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Biological treatment of wastewater
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Patent number 6,183,642
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Issue date Feb 6, 2001
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Grontmij Advies & Techniek B.V.
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Joseph Johannes Heijnen
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Biological treatment of wastewater
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Patent number 5,863,435
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Issue date Jan 26, 1999
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Grontmij Advies & Techniek B.V.
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Joseph Johannes Heijnen
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Fluidized-bed apparatus
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Patent number 5,230,794
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Issue date Jul 27, 1993
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Biothane Corporation
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Joseph J. Heijnen
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Fluidized bed reactor
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Patent number 4,618,418
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Issue date Oct 21, 1986
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Gist-Brocades N.V.
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Joseph J. Heijnen
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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