Summary of Study Session 18
In Study Session 18, you have learned that:
- Waste can be categorised as solid or liquid waste based on its physical state. It can also be categorised as hazardous and non-hazardous waste.
- Liquid waste includes human waste, runoff (flooding), sullage (or greywater) and other forms of wastewater from different sources.
- Solid waste is any dry waste that is discarded by people because they no longer need it. It can arise from households, industrial, commercial or agricultural activities, or from streets.
- Human waste is biodegradable, meaning it will decompose by a biological process due to microorganisms, particularly bacteria.
- The type, generation rate and characteristics of solid waste depend on the source of the waste and on cultural habits, urbanisation, season of the year and the agro-ecological zone of the area.
- Poor waste management could result in various diseases, accidental fire or nuisance conditions for the environment and families.
- Properly managed waste could benefit your community socially and economically by recycling and reusing waste, where possible.
- The main components of solid waste management include onsite handling, storage and processing; waste collection; transfer and transport of solid waste; and waste recovery and final disposal.