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REFUSE AND SEWAGE
CONTENT
- Meaning of Refuse and Sewage
- Methods of Refuse Disposal
- Cleaning Tools and Agents
Meaning of Refuse and Sewage
Refuse is a solid waste whether dry or wet which could cause land pollution e.g. nylon, paper, plastic, broken bottles, scraps, etc. Refuse wastes materials could be divided into 2 namely: biodegradable and non-biodegradable.
Biodegradable materials are materials that can decompose or decay e.g. banana peels, dead leaves, dead animals, etc.
Non-biodegradable things are materials that cannot be decomposed or decay e.g. metals, plastics, broken bottles, etc.
Sewage is a liquid waste from the environment e.g. faeces, urine, wasted water from kitchens, bathrooms, etc.
Methods of Refuse Disposal
Refuse disposal methods include:
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