Abstract
Bedadung stream is one of the biggest rivers that passes through Jember Region, East Java, Indonesia. Due to land uses caused by surrounding civilization, many of drainage channels throw in nonpoint source pollutants from industrial, domestic, and agricultural activities to river. DO and BOD are two of most important parameters reflecting ecological health of river. BOD reflects the number of organik pollutant contained water. DO concentration is controlled by a number of physical, chemical and biological processes, such as deoxygenation and reoxygenation. The aim of this research to analyze deoxygenation and reoxygenation rates of Bedadung River segment Tamansari and Lojejer villages, Jember. The primary data were obtained by measuring of stream flow and water quality parameters (temperature, DO and BOD) at 4 observed stations (BDG01, BDG02, BDG03, and BDG04). The result showed that stream flow was 6.466 m3/det, and its water quality such as DO 7.008 mg/L dan BOD 0.928 mg/L. The values of deoxygenation and reoxygenation rate were 0.975 mg/L.day and 1.051 mg/L.day, sequentially. The reoxygenation rate value was higher than deoxygenation value, concluded that Bedadung stream was able to increase its dissolve oxygen content and attempt self purification.
Highlights
Sungai Bedadung merupakan salah satu sungai utama di Daerah Aliran Sungai (DAS) Bedadung dan terletak di Kabupaten Jember
of the biggest rivers that pass through Jember Regency
to land use caused by surrounding civilization
Summary
Redaksi Jurnal Keteknikan Pertanian mengucapkan terima kasih kepada para Mitra Bebestari yang telah menelaah naskah pada penerbitan Vol 9, No 1 April 2021. Ucapan terima kasih disampaikan kepada: Dr Hendriko, ST., M.Eng (Sekolah Tinggi Ilmu Pertanian Agrobisnis Perkebunan, Medan), Dr Ir. Hermantoro, M.S (Instiper Yogyakarta), Dr.Ir. M. Yanuar Jarwadi Purwanto, MS (Departemen Teknik Sipil dan Lingkungan, IPB University), Dr.Ir. Yuli Suharnoto, M.Eng (Departemen Teknik Sipil dan Lingkungan, IPB University), Prof.Dr.Ir. Usman Ahmad, M.Agr (Departemen Teknik Mesin dan Biosistem, IPB University), Dr Leopold O. S.TP, M.Si (Departemen Teknik Mesin dan Biosistem, IPB University), Prof.Dr.Ir. Asep Sapei, MS (Departemen Teknik Sipil dan Lingkungan, IPB University)
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