- Solid wastes refer to everything that goes out in trash.
- Municipal solid wastes are wastes from homes, offices, stores, schools, hospitals.
Fig. solid wastes
Types of solid wastes
- Bio-degradable- the wastes which can be degraded by microorganisms. Example- food materials.
- Recyclable- the wastes which can be converted into new materials. Example- glass, paper.
- Non-biodegradable-the wastes which cannot be degraded or takes long time to get degraded. Example – plastic.
Prevention of solid wastes
- Reduction in use of plastics and use of eco-friendly packaging.
- Carrying cloth or other natural fiber carry-bags.
- Refusing polythene bags.
- Burning and open dumps are used to reduce the volume of the wastes.
- Open dumps serve as the breeding ground for rats and flies.
- Sanitary landfills were adopted as the substitute for open-burning dumps.
- Polyblend is a fine powder of recycled modified plastic which is mixed with bitumen to lay roads.
- Hospitals wastes contain disinfectants, harmful chemicals and pathogenic micro-organisms.
- Incinerators are used to dispose hospital waste.
- Irreparable computers and other electronic goods are known as electronic wastes (e-wastes).
- E-wastes are buried in landfills or incinerated.
Fig. electronic wastes