Kenyan company using human waste sludge to produce briquettes

In Kenya, the Daily Nation newspaper reports that local company Nawasscoal in conjunction with university researchers has determined that producing briquettes from one metric ton of human waste sludge could save 88 trees from being used for cooking energy. With the aim of producing 300 tons of briquettes monthly, the company estimates it could save nearly 25,000 trees at the same time. Each briquette, which is 50% human waste sludge and 50% sawdust, burns for up to three hours.