Summary

In this Study Session, you have learned that:

• The major sources of solid wastes in low-income countries urban areas are residential areas, commercial areas, institutions and street sweepings.
• Solid waste can be classified by source or by its characteristics including whether or not it is biodegradable, combustible or hazardous.
• The composition of municipal waste varies with location, season and the habits and economic status of the community.
• Food wastes, papers, plastics, textiles, street sweepings, wood and charcoal, glass and ashes are the major solid waste types generated in towns and cities.
• Waste, especially organic waste, can become a health hazard if stored for too long.
• Analysis of moisture content, ash content and heat content of wastes are important for planning waste management options.
• Assessment of the quantities of wastes generated are needed to plan for waste collection and disposal schemes.
• On-site waste storage requires closed containers that are emptied frequently.
• Commercial solid waste has a similar composition to residential waste. The nature of industrial waste depends on the type of industry.
• Healthcare wastes should be considered hazardous and need special handling and disposal procedures.