Application of Graphene Photocatalysis in Black Smelly River Regulation
Stench river regulation is one of the elements of the special action"263", the southern section of the river is a typical water quality of lower than Level Ⅴ black smelly river. The photocatalytic network consists of a photosensitive material, a highly efficient carrier-graphene graphene material and a photocatalytic material with a quantum size effect to form a composite layered photocatalytic material system for visible light infrared response. As Graphene photocatalysis was used to treat it, The dissolved oxygen increased significantly up to 10. 0 mg/L within one month after the net was laid down. The concentrations of other pollution factors such as ammonia nitrogen, total phosphorus and permanganate rapidly decreased. The removal rates in the first ten days were 47. 3%, 79. 5% and 45. 6%, respectively. Water quality from the original Level Ⅴ to Level Ⅲ, the color of the water has become clean and clear. As a new type of water treatment technology, graphene photocatalysis has obvious effect on the regulation of black - smelly rivers.