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WEEK THREE
TOPIC: FAMILY HEALTH 2
SUB-TOPIC: REFUSE AND SEWAGE
CONTENTS: 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 are materials that can decompose or decay e.g. banana peels, dead leaves, dead animals etc.
Non-biodegradable are materials that cannot be decomposed or decay e.g. metals, plastics, broken bottles etc.
Sewage is a liquid waste from the environments e.g. faeces, urine, wasted water from kitchens, bathrooms etc.
Methods of disposal:
Refuse disposal methods
- Burning of the refuse.
- Burying to facilitate decomposition or decay.
- Recycling of refuse (It is a process whereby refuse is sorted out and converted to the original materials and use again.)
- Proper use of waste bins
- Use of incinerator ( a container where solid wastes are burnt)
Sewage disposal methods
- Pit latrine: A deep pit dug in the ground use as a means of disposing faeces.
- Bucket latrine: This is the use of mobile container for faeces and urine e.g. potty
- Water closet system (WC): The water closet is connected to a septic tank that receives the sewage once it is flushed.
Cleaning tools and agents
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