Waste can be categorized into two type which is the solid waste and toxic and hazardous waste. Solid waste is the useless and unwanted product which is generated by manufacturing process, activity or by product and is discarded by society. Toxic and hazardous waste is defined as scheduled waste or matter whether in solid, semi solid, liquid, gas or vapor form which is emitted, discharged or deposited in the environment in such volume, composition or manner to cause pollution.
Solid waste can be further categorized into five categories which are waste materials, trade waste, industrial waste, park waste and household waste. Toxic and hazardous waste is scheduled waste which is account into 5 groups which have 77 categories.
The 5 groups of toxic and hazardous wastes are
- Waste that containing metal or metal bearing materiels.
- Waste that are containing inorganic constituents which may contain metals or organic materials.
- Waste that are containing organic constituents which may contain metals and inorganic materials.
- Waste that are inorganic or organic constituents.
- Other waste
Other than above classification, waste can be also divided into 4 types which is municipal, medical, hazardous and industrial wastes. Municipal waste refers to waste generated by the urban. Medical waste included the healthcare by products which are sharp, non-sharp, chemical, blood, human parts and radioactive compounds.
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