Trash power

Waste Gas Technology (WGT) Inc, Hampshire, UK, has developed a new technique for utilising waste to produce electricity which, it claims, is twice as effective as conventional incineration. Depending on the waste material used, the thermo-crack system developed by WGT will generate 1000-4000 kilo-watt-hour (kwh) from a tonne of waste, compared to the 500-600 kwh achieved by standard incineration. The waste is first burned anaerobically at 1000C and converted to gas. The WGT system releases 50 per cent less carbon dioxide than the incinerators and can also handle liquid organic wastes like oil greases and solid wastes.