What Is Waste?

Waste is waste generated from a production process both industrial and domestic (household). Where people live, there the various types of waste will be generated. There is garbage, no water toilet (black water), and there is waste water from a variety of other domestic activities (gray water). As a waste, its presence is alarming particularly those from industrial plants and hazardous toxic materials are widely used as industrial raw materials as well as helper . Of toxic and hazardous wastes are shown by physical and chemical properties of the material itself, both of quantity and quality.