Anaerobic digestion of municipal solid waste was carried out in the laboratory at room temperature to assess the bio-energy production from municipal solid waste (MSW) with high total solids content. The total biogas production from the municipal garbage was found to be 3.2 L in 120 days.

Noble metals and Cu mainly are recycled in treating waste printed circuit boards (PCBs), and a large amount of nonmetallic materials in PCBs are disposed of by combustion or landfill, which may cause secondary pollution and resource-wasting. In this study, a kind of nonmetallic plate (NMP) has been produced by nonmetallic materials of pulverized waste PCBs. The NMP is produced by a self-made hot-press former through adding resin paste as a bonding agent.

Aasha Khosa / New Delhi ACC uses cow dung, old shampoo, soap, paint sludge and even municipal waste in five plants. Cow dung, old shampoo, soap, paint sludge and even municipal waste are fed into furnaces that burn lime into cement at the plants of India's leading cement manufacturer, ACC. ACC ,which recently won the Golden Peacock award set up by the UK-based World Environment Foundation, for eco-innovation has procured more than 200,000 tonnes of waste including some hazardous ones to make cement.