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Welcome at Colsen b.v. 1
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Colsen b.v. represents an environmentel advisory, technology and engineering company. Our firm is able to supply a wide variety of environmental services in the field of wastewater treatment, digestion- and digestate treatment technology, biogas production and valorization, soil and groundwater remediation, licenses, relations with local authorities and environmental project management in a multinational setting. Colsen b.v. is composed of a team of enthusiatic and highly skilled professionals capable to meet your environmental challenges.

This month's feature : Colsen Bidox® system

Flawless biogas desulphurization

Bidox schematics

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News and information 1
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Inert COD-removal: establishing an Expertise Centre
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Colsen builds the first Bidox installation for the paper industry
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"Complete technology for the thermophilic anaerobic digestion of industrial organic waste": Hydroitalia-Colsen S.r.l. presentation at ENEA conference in Bologna, May 19th, 2011.
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Colsen International b.v. realizes Biogas
installationand waste water purification installation
for a big Italian potato processing company

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Colsen b.v. performs a feasibilitystudy to the upgradability of biogas to Green Gas for
De Groene Poort in Rilland

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Colsen International b.v. organizes a successful seminar in Bologna (Italy) with partner HydroItalia Srl.
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Colsen b.v.   Kreekzoom 5   4561 GX HULST(NL)
telf: +31 (0)114 - 31 15 48   fax: +31 (0)114 - 31 60 11    email: info@colsen.nl