Residue for some, Energy for us

ComBio uses biomass of provenly legal origin, and which, in most
cases, causes serious environmental problems when not correctly disposed.
What was environmental liabilities for the companies before is our fuel today.

Learn more about some of the types of biomass that we use:

Wood Chips

Chip is the term used to characterize the wood chips resulting from a milling process. Mostly from eucalyptus and pine, this chip is generated in sawmills from the leftover of trunks flitches. Currently, the state of São Paulo contributes significantly to the development of this market.

Forest Residue

The oversize, as we call it, is composed of everything that is discarded in the process of eucalyptus harvesting. This residue, discarded by harvesting machinery, is left on the ground, making replanting difficult. In our operation in Capão Bonito, this material is collected, grinded and transported to our nearest boilers.

Rice Husk

For rice mills, the disposal of rice husk is a synonymous for cost. We perform the reverse logistics of this material in the unity located in the State of Rio Grande do Sul: we collect the disposal of the generating company without cost and transform into energy what was environmental liabilities for this sector before.

Açaí Seed

A major environmental problem in the state of Pará is the silting of rivers due to the improper disposal of the seed of açaí. Since 2014 Combio collects big part of the waste generated in Barcarena region, mitigating their improper disposal and transforming it into biofuel.

Recycled Chips

This type of chip is produced from the reverse logistics of the wood of some industries, such as automakers, which receive their parts in wood boxes or pallets. All this material is separated and collected by wood recycling companies, where it is transformed into chips.


The Sawdust is the residual material from of sawmills machines, also called fines. It is a material commonly used in aviaries for making the bed of the birds, being difficult to be burned in boilers. As our equipment is prepared to burn many types of material, we can use the fine in conjunction with other biomasses.