Straw-to-biogas

Zorg started offering new equipment for straw-to-biogas.

• straw,
• wooden chips,
• post-harvest waste,
• sunflower husks,
• old grass,
• tree branches,
• chicken dung with bedding,

everything is suitable for biogas production now.

To enable conversion, lignocellulosic material like straw and wood chips need to be pre-treated before being fed into a biogas plant. This is achieved by first cooking and then applying a steam explosion process.

A typical straw treatment plant has a capacity of 20 tonnes of straw/day. It will produce enough substrate for an 800 kW biogas plant (19,200 kWh of electrical power per day). 1 tonne of straw yields 425 m³ of biogas. The power consumption to sustain operation is just 45 kW of electricity and 240 kW of heat.