Waste management hierarchy is the way of thinking that how we can use products beneficially, and how we can generate less waste. In past, this understanding of management of waste has the reverse order. When we had waste, we got over it with disposal method. However, this method has drawbacks in general idea of waste managing, and so it is the least desired option now. At the top of the demonstrated pyramid, we have to do prevent the production of waste, or reduce the amount generated. In the second step, by minimisation, we reduce the toxicity or negative impacts of the waste that is generated. Then, we reuse in the current forms of materials recoverd from the waste stream. By recycling, composting, or recovering, we use materials as direct or indirect inputs to new products. In the energy recovering option, we recover energy by incineration, anaerobic digestion or similar processes. It reduces the volume of waste prior to disposal. And the final preference, we dispose residual solid waste in an enviromentally sound manner, generally in landfills.