Solid waste is produced by all sectors of society and includes household waste such as garbage and garden clippings; other waste such as street bins and street sweepings; and wastes from retail, commercial and industrial activities. It consists of municipal, commercial, industrial, building, demolition and hazardous materials. Solid waste can be classified according to the products and materials of different industries. Putrescible materials are materials that degrade and produce methane if conditions, such as water availability, are right. Putrescible materials comprise the largest proportion of municipal waste. Paper/wood products, glass, metals, and plastics constitute a significant proportion of municipal solid waste.There are a number of disposal routes for the different types of solid waste produced:recycling;composting;incineration;landfill; andon-site landfill
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