4 Result(s) found

Biogas / anaerobic digestion

In many cities in developing countries, the most serious environmental and health problems are related with inadequate solid waste management (SWM). Urbanization or an increase in population, respectively, leads to increased waste generation in urban areas. Most problems are strongly related to inappropriate treatment of the organic fraction of municipal solid waste (OMSW). Composting and anaerobic digestion (AD) are seen as the most favored options to deal with OMSW. Both treatment options reduce the environmental burden and enable the generation of a nutrient rich fertilizer.

Region: Africa, Asia-Pacific, Latin America & Caribbean
Year of publication : 2007
Document Type: Report&Data

Food waste is the single largest category of municipal solid waste (MSW) in California at 5.9 million tons or 16% of total MSW as of 1999 (CIWMB, 1999). Diverting a portion of food waste from landfills can provide a significant contribution toward achieving EPA, state, and local mandated solid waste diversion goals. In addition, diverting food waste from landfills prevents uncontrolled emissions of its breakdown products, including methane—a potent greenhouse gas. Currently, only about 2.5% of food waste is recycled nationwide, and the principal technology is composting.

Region: North America
Year of publication : 2008
Document Type: Report&Data

Currently, much of our biodegradable waste such as food, garden waste, card and paper is sent to landfill, where it breaks down to release methane, a powerful greenhouse gas. Anaerobic digestion (AD) is a treatment that composts this waste in the absence of oxygen, producing a biogas that can be used to generate electricity and heat. Producing 100 per cent renewable energy from our biodegradable waste helps tackle climate change, instead of contributing to climate change through landfilling and incineration. Includes a few case studies from existing plants.

Year of publication : 2007
Document Type: Factsheet, Report&Data

Seven case studies of zero waste around the world.
Introduction: Stories From the Front Lines of the Zero Waste movement
Pune, India: Waste Pickers Lead the Way to Zero Waste
San Francisco, USA: Creating a Culture of Zero Waste
Alaminos, Philippines: Zero Waste, from Dream to Reality
Hernani, Spain: Door-to-Door Collection as a Strategy to Reduce Waste Disposal
La Pintana, Chile: Prioritizing the Recovery of Vegetable Waste
Mumbai, India: Waste Picker-run Biogas Plants as a Decentralized Solution

Region: Asia-Pacific
Year of publication : 2012
Document Type: Report&Data