Biomass Gasifier

A biomass gasifier is a device use in wastewater treatment that converts biomass (organic matter deriver from plants or other biological sources) into a combustible gas calle syngas. The syngas produce by the gasifier can be used as a source of energy for various applications, or even as a fuel for engines.

System Components

In the context of wastewater treatment, a biomass gasifier can be utilize to treat wastewater sludge, which is the solid residue left after the primary and secondary treatment processes. This sludge is rich in organic matter, and instead of disposing of it as waste, it can be convert into useful energy through gasification.

Process Steps

Here’s a simplifie overview of how a biomass gasifier can be use in wastewater treatment:

  1. Collection and Preparation: The wastewater sludge is collected from the treatment plant and prepare for gasification. This may involve dewatering the sludge to remove excess water and enhancing its energy content by adding dry biomass materials.
  2. Gasification: Inside the gasifier, the biomass is heat in an oxygen-limit environment to produce a mixture of gases, primarily carbon monoxide, hydrogen and methane . 
  3. Gas Cleaning: The syngas produce in the gasifier contain impurities such as tar, particulate matter, and other contaminants. These need to be remove before the syngas can be utilize. 
  4. Energy Utilization: The syngas can be burn directly for heat generation, use in a gas engine or turbine to produce electricity, or further process to produce other forms of energy, such as biofuels or chemicals.


By using a biomass gasifier in wastewater treatment, the organic content of the wastewater sludge is effectively convert into a valuable energy resource. This process not only reduces the volume of sludge that needs to be dispose of but also provides a sustainable energy source, contributing to the overall energy efficiency and environmental sustainability of the wastewater treatment facility.