Water Treatment
Water is the source of life ! It is one of the most abundant chemical compounds on earth ,and about 3/4 was covered by water .96.5% are in the sea ,the fresh water we can use in the land less than 1% .So how to fully use and protect the water is a very important question that human has been exploring.With the development of human science and technology ,many water treatment scheme has been used now .Physical treatment and chemical treatment ,such as mbbr ,biofilm