Located in the west of Quanzhou, a model treatment plant in Fujian, which has won several second prizes in the industry of Fujian province. It is the first transformation project in Fujian which is capped and deodorized to prevent the stink. The treatment pools are equipped with caps and air pumps,plus biofilter, so it is made a stink-free plant . Covering an area of 67200 sq.m , it serves 168000 people, the capacity is 90 thousand tons per day, CAST technique is introduced. All of the treatment pool are equipped with lids and biological filter is adopted to prevent the spread of bad smell.