สำนักราชบัณฑิตยสภา

538 กรณีอุบัติเหตุเรือน�้ ำตาลอับปางในแม่น�้ ำเจ้าพระยา The Journal of the Royal lnstitute of Thailand Volume 36 No. 4 Oct.-Dec. 2011 Abstract Raw Sugar Barge Sunk Accident in Chao Phraya River Suntud Sirianuntapiboon Professor, Department of Environmental Technology, School of Energy Environment and Materials King Mongkut’s University of Technology Thonburi Piamsak Menasveta Fellow of the Academy of Science, The Royal Institute, Thailand Somchai Bovornkitti Fellow of the Academy of Science, The Royal Institute, Thailand The accident that caused a raw sugar barge sunk in Chao Phraya river at Tumbon Phukao ThongAyutthaya province occurred when 3 barges in a series was towed passing under a bridge. The first barge collided the bridge pillar causing the barge no.2 to sink into the river. The barge also collided a house before sinking. This accident subsequently caused other impacts as follows: The sunken barge interrupted river flow resulting in the change of flow direction, and this subsequently causing several house collapsed by the erosion of the river bank. Raw sugar in the sunken barge dissolved in the river resulted to the oxygen depletion. Significant amount of aquatic animals, especially fish, died because of the oxygen depletion. Key words : raw sugar barge sunk, raw sugar, oxygen depletion