Packing material comprising starch-modified polyurethane for the biofiltration of organic compounds present in gaseous or liquid effluents, production methods thereof and biofiltration system
OwnerOlga Brígida Gutierrez Acosta, Vladimir Alonso Escobar Barrios +1inventors
InventorsOlga Brígida Gutierrez Acosta, Vladimir Alonso Escobar Barrios, Sonia Lorena Arriaga Garcia
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Abstract
The invention relates to a packing material for biofilters, having a polyurethane polymer and starch. The packing material is resistant to compaction, can sorb pollutant organic compounds and reduces the start-up time of the biofilter. The packing material can be used as a substrate in the biofiltration of volatile and/or semi-volatile organic compounds present in gaseous or liquid effluents.
Claims36
A packing material comprising a polyurethane polymer and starch, a foaming agent and water.
A method for preparing a packing material, comprising the steps of:
- a) mixing a polyurethane prepolymer, starch, a foaming agent, and water to form a mixture,
- b) foaming the mixture, and
- c) drying.
Dependencies are inferred from the claim text.