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Contribution Projects

Alongside implementing reduction solutions, Tapio guides companies in selecting the highest quality carbon sequestration projects in line with their carbon budget and values.

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Picture of project Kornburi Wastewater Treatment

Kornburi Wastewater Treatment

Country: Thailand

Technology: Biogas recovery/Wastewater treatment/Sludge treatment

Price: 9.72 EUR/t CO2

4. Quality Education8. Decent Work and Economic Growth9. Industry, Innovation and Infrastructure13. Climate Action

The existing process has been modified into a closed loop system that captures the methane emissions and uses them to generate heat and electricity for the factory. The project not only reduces GHG emissions by avoiding the release of methane into the atmosphere, but also by reducing fossil fuel consumption.


The General Starch factory in Kornburi District produces tapioca starch from dried cassava that is grown by farmers in the region. This process creates vast amounts of wastewater which is stored in a series of open lagoons. The large size of these lagoons and the warm temperature creates perfect conditions for the breakdown of organic compounds in the wastewater. This produces large amounts of the greenhouse gas methane, which is known to contribute to global warming.


The treatment process has improved wastewater quality, so that the water can now be reused in the factory for washing the cassava, saving precious local groundwater resources. The new technology has improved local air quality as it reduces the unpleasant odour and noxious emissions from the lagoons.

Picture of project Kornburi Wastewater Treatment