The discussion talked about handling the environment and society from solid, liquid, and gas waste management. In this paper there are several methods that can be used to treat wastewater, including, Dilution (disposal by dilution). Wastewater is discharged into rivers, lakes or the sea to dilute. In this way the wastewater will undergo natural purification. However, this method can contaminate surface water with pathogenic bacteria, worm larvae and eggs, and other germs in the wastewater. If only this method is applicable, the following conditions must be met, River or lake water may not be used for other purposes.