Tofu Wastewater Used to Produce Biogas in Indonesia

Tofu, which is made from curdled soybean milk, is one of Indonesia's staple foods. Its small-scale production in farms throughout the country leaves behind polluted and foul-smelling wastewater. In the tiny village of Kalisari, this wastewater is collected from 150 small producers and transformed into

biogas

A product of the methanation (anaerobic digestion) of organic waste. Biogas contains 50 to 70...

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in digester tanks. The village and its residents have reaped many benefits from this

methanation

A complex natural process in which microorganisms break down biodegradable organic matter in ...

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process, including a cleaner village and access to energy.