Conventional activated sludge (CAS) is an effective technology utilized in treating wastewater using aerobic microorganisms to digest organic content from wastewater. This process produces sludge which is discarded to remove inactive microorganisms from the system. . . . . . #wastewater #wastewatermanagement #wastewatercontractor #anthroserv #stpcontractor #stp #stpcontractorphilippines #wastewatercompany #wastewaterphilippines | Anthroserv Inc.