Hazardous Waste Management
Waste can be defined as any substance that is discarded after primary use, worthless, defective and of no use. It can be classified as household waste, clinical waste and industrial waste. Alternatively, it can be categorized as hazardous waste and non-hazardous waste according to their functions of its toxicity, corrosiveness, explosiveness and radio activeness characteristics.
Hazardous Wastes are potentially harmful, therefore normal handling (storage, packaging, and transport) and the subsequent disposal methods, that usually being used for non-hazardous industrial wastes (land filling), are not appropriate. Due to scheduled wastes present potential risks to the human health and environment.
Four basic characteristics for hazardous wastes which are listed below:
- Ignitable (flash point of ≤ 60°c)
- Corrosive (dissolves metals, burns the skin or has a pH ≤ 2 or pH ≥ 12.5)
- Reactive (unstable or undergoes rapid or violent chemical reaction with water, air or other materials)
- Toxic (poisonous or can cause cancer, mutations or death)