Solid waste refers to the range of garbage arising from animal and human activities that are discarded as unwanted and useless. Solid waste is generated from industrial , residential and commercial activities in a given area, and may be handled in a variety of ways. As such, landfills are typically classified as sanitary, municipal, medical/hospital, construction-demolition and industrial waste sites. Waste can be categorized based on material, such as plastic, paper, glass, metal, organic waste etc. Categorization may also be based on hazard potential including radioactive, flammable, infectious, toxic or non-toxic. Categories may also pertain to the origin of waste, such as industrial, domestic, medical, commercial, institutional or construction and demolition. The world ’s responses affecting solid waste management are often severely inadequate with unscientific treatment, improper collection of waste, and ethical problems. This in turn leads to hazards like environmental degradation, water pollution, soil pollution, and air pollution. The international Convention on the Elimination of Persistent Organic Pollutants (POPs) lists medical waste incinerators among the main dioxin sources in the environment. However, medical waste incinerators emit a wide range of pollutants besides dioxins and furans. These include heavy metals (lead, mercury and cadmium), fine dust particles, hydrogen chloride, sulfur dioxide, carbon monoxide, nitrogen oxides and other pollutants ( like products of incomplete combustion ) released into the atmosphere. They also generate highly contaminated ash that is potentially hazardous to human health. It is scientifically acknowledged that these pollutants can have serious negative impacts on the health of incineration plant personnel, the public and the environment . Cities around the world are facing severe challenges due to increasing garbage waste. Garbage contaminates surface waters, which affects all ecosystems, causing high rates of cancer, allergies, birth-defects, transmitting diseases, increasing respiratory problems a risk to our health and environment. Burying garbage also causes both air and water pollution, and simply transporting it to the sites consumes an increasing amount of valuable fossil fuels, which produces more pollution and other problems. . .