Erika Sheane T. Estera, Sherwin Neil G. Loor, Maureen Emily V. Niño (March 2012)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
Abstract
This study determined the rate of loaded sediments in the Iloilo Flood Control Project (ICFP) for the months of May and June which is the onset of rainy season. Specifically, it aimed to compare the rate of the loaded sediments to the normal rate of of sedimentation. The normal rate of the sedimentation to be attained must be 10 mg cm–2day–1 or less. It was hypothesized that the rate of loaded sediments in IFCP would be high and would exceed the rate of norma sedimentation. An improvised sediment trap from a related study of Becira was used to collect and determine the amount of loaded sediments in the river. Three traps were placed 100 m away from the mouth of the river and 0.3 m away from each other. The study was conducted with 3 replicate sets undergoing the same method for measuring the amount of loaded sediments. Oven-drying and constant weighing was also done prior to the outcome of the collected measure. Each filtered sample was weighed five times and the averaged weight of the filter paper was subtracted from it. Data gathered was analyzed using Microsoft Excel to compute and lay-out the graph of the data. Based on the results of this study, almost all of the acquired rate of loaded sediments were above the normal rate of sedimentation (<10 mg cm–1 day–1) except from May 25 and May 26 which has 3 mg and 10 mg respectively.