Waste can be defined as discarded and useless materials which do not possess any value. Solid waste is generated from different sources such as households, industries, agriculture, commercial spaces and other human activities, and pose significant environmental and public health risks. Thus, effective solid waste management is a necessity.
As per UNICEF, solid waste is categorized into two: Biodegradable and Non-Biodegradable waste. Biodegradable waste includes kitchen waste, agricultural waste, human and animal waste, which can be decomposed by the biological action of living microorganisms. However, non-biodegradable wastes are those which cannot be decomposed biologically. It includes plastic, metal, glass etc. This is the reason why non-biodegradable waste management using different technologies and solutions have assumed greater importance today.