Status : Verified
Personal Name Tolentino, Mark Anthony G.
Resource Title Modeling nutrients along Bued River with point sources of pollution
Date Issued 20 August 2018
Abstract A study of University of Cordillera on identification of sources of pollution along
the Bued River showed that about 82% of the pollutants came from residential
community and livestock. These sources released excessive amount of nutrients to the
river which caused depletion of dissolved oxygen. This study aims to determine fate and
transport of nutrients along Bued River using WASP EUTRO by considering point and
nonpoint sources of pollution. Concentration of nutrients on established sampling points
along the river was collected monthly from July 2014 to January 2015 which was used in
calibrating the generated WASP EUTRO model. Comparison of concentrations of
nitrates and phosphates between observed and modelled data has PBIAS value of -0.022
and -0.173, respectively. Hydrological components of the model were supplied by Bued
watershed model from HEC-HMS. DAO-2016-08 water quality guidelines were used in
assessing the nutrients concentrations of the river segments. Bued River classification is
Class C which has maximum nitrate and phosphate concentration of 7.0 mg/l and 0.5
mg/l respectively according to Philippine water quality standards. Nitrate concentration
for majority segments of the river were less than 7.0 mg/l while phosphate concentrations
for majority of the segments on upstream part of the river up to Liwliw Tributary were
more than the 0.5 mg/l limit. Despite the phosphate concentration above the standard,
dissolved oxygen concentrations for all segments of the river had passed the standard.
Degree Course MS Environmental Engineering
Language English
Keyword Nutrients, WASP, Bued River
Material Type Thesis/Dissertation
Category : F - Regular work, i.e., it has no patentable invention or creation, the author does not wish for personal publication, there is no confidential information.
 
Access Permission : Open Access