The scientific and technological progress of man has invested him with immense power over nature; rather it has resulted in the reckless use of the power, and endless encroachment of nature which is resulting into a number of buzzwords like acid rain, ozone layer depletion, contamination, environmental pollution, climate change, global warming, rising sea water levels, knowledge explosion and information & communication technology revolution, etc. As man influences his environment, he in turn is influenced by his environment. Each wave of technology creates a set of waste previously unknown by humans: toxic waste, radioactive waste, electronic waste, etc. There are various categories of waste such as food waste, commercial waste, agricultural waste, institutional waste, industrial waste, constructional waste, rubbish, and street sweeping waste. Waste consists of recyclable materials like paper, glass, plastic and metals; toxic substances like pesticide, paints, used medicines and batteries; compostable organic matter like fruits, vegetable...