We are an integral part of the environment. Our activities change the environment around us. Improvements in our life-style have resulted in greater amounts of waste material generation.
These accumulated wastes can be classified as biodegradable and non-biodegradable. Substances that are broken down by biological processes are said to be biodegradable. Substances that are not broken down by biological processes are said to be non-biodegradable.
Solid waste is composed of broad array of materials discarded by house holds, businesses, industries and agriculture. The resource conservation and recovery act defines solid waste to include garbage, refuse and sludge from municipal sewage treatment plants, ash from solid waste incinerators, mining waste, waste from construction and demolition and some hazardous waste.
They are discarded from the house hold, such as paints, cleaning solvents, batteries etc and small quantities of hazardous materials from industry.
Industrial Non-Hazardous Waste:
This waste comes from four industries like iron and steel manufacturers, electric utilities, companies making industrial inorganic chemicals and firms producing plastic and resins.
Municipal Solid Waste:
The municipal solid wastes are discarded from residential, industrial and other sources. The materials include plastics, paper, glass, metal, wood, food and yard waste, the amount of each material is evaluated by weight or volume.
Effects of Solid Waste:
1. Solid waste is a health hazard and can cause the damage to the environment if not handled properly. The main risk to human health arises mainly by the breeding of disease carriers e.g. flies, rodents, mosquitoes etc. as the solid waste are ideal breeding places for pathogens. Workers are also threatened by handling and transfer of biological waste besides infection of diseases.
2. Improper disposal of solid wastes results the... [continues]
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