สำนักงานราชบัณฑิตยสภา

35 สั นทั ด ศิ ริ อนั นต์ไพบูลย์, ชญานิ ศ เอี่ ยมแก้ว, เปี่ยมศั กดิ์ เมนะเศวต วารสารราชบัณฑิตยสถาน ปีที่ ๓๘ ฉบับที่ ๓ ก.ค.-ก.ย. ๒๕๕๖ Abstract Oil and Grease in Domestic Wastewater Suntud Sirianuntapiboon Department of Environmental Technology, School of Energy Environment and Materials, King Mongkut’s University of Technology Thonburi Chayanit Eamkaow Department of Environmental Technology, School of Energy Environment and Materials, King Mongkut’s University of Technology Thonburi Piamsak Menasaveta Fellow of the Academy of Science, The Royal Institute, Thailand Oil and grease are major pollutants in domestic wastewater, because, they are cooking raw materials. They cause pollution problems when being discharged into natural water resources by decreasing the dissolving rate of oxygen into the water. In addition, they could decrease the dissolved oxygen of the water by their biological oxidation causing the water body to be polluted threatening the survival of the aqua-lives (plant and animal). Moreover, oil and grease make bad scenery of the water resources when they float on the water surface. To solve the above-mentioned problems, oil and grease should be removed and the wastewater is discharged into the natural water environment to reduce impacts on the environmental, natural re- sources and health. Moreover, potential use of oil and grease waste as raw materials for bio-diesel production, soap making, and briquettes may solve the environmental prob- lems and save the natural resources. Keywords: oil and grease, wastewater treatment system, domestic wastewater, grease trap