Abstract
Bedadung River is the main river in the Jember Regency – East Java. The organic and inorganic waste from human activity increases potential pollution loads in the river. The pollution load impacts on the water quality of the river. The oxygen existence as an indicator of river water quality that was determined based on deoxygenation and reoxygenation rate. It was one of decision making for the government on water quality management in the watershed. This research aims analyzed pollution loads, deoxygenation and reoxygenation rate of Bedadung River in the Patrang - Sumbersari segment. Simple mathematical analysis model oxygen distribution used the Streeter-Phelps method. This method applied dissolved oxygen data (DO) and biological oxygen demand (BOD) as the input data. The results represented that the highest pollution loads at point 7 in value 1198.6 kg/day. Based on the calculation of oxygen distribution with Streeter-Phelps formula, the rate of deoxygenation (rD) < reoxygenation (rR) a sequence were 0.028 mg/day.L and 0.053 mg/day.L. It indicated a good functioning for pollutant degradation. The government and stakeholder had been maintained through an integrated water quality management scheme and pollution control on the Bedadung River.
Published Version
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