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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Kadek Diana Harmayani
Universitas Udayana
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Engineering

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Assessment of Surface Water Quality Status Using the Pollution Index Method in Tukad Badung River Kadek Diana Harmayani; Ni Made Pertiwi Jaya; Ida Ayu Rai Widhiawati; I Gede Andy Andika Parahita; Ngakan Gede Agung Khrisna Wiryananda; Ni Nyoman Dewi Supriyani; Daniel Rizal Mahendra; I Gusti Agung Gede Wiranata Baskhara; Debora Sofia Fransiska Hutagalung
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 1 (2023): March 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i1.175-185

Abstract

This research proposes to find out the present state of the water's purity in Tukad Badung through an examination of the Pollution Index (PI) adopted from the methodology presented by the Water Quality Index (WQI), which was presented by the Indonesian Ministry of Environment. A series of water samples were taken at three river flow points in the Denpasar City area, representing the upstream, middle, and downstream areas. The water quality parameters were determined based on the characteristics of domestic wastewater pollutant sources that are identified in watershed areas. In accordance with Regulation 22 of the Government of 2021 concerning quality standards for river water used for drinking water, the average concentrations of Total Suspended Solid (TSS), Ammonia, Biological Oxygen Demand (BOD), and Chemical Oxygen Demand (COD) parameters have exceeded quality standards. Meanwhile, the oil and grease parameter, as well as detergents, still meet quality standards. The PI at three monitoring points was obtained at 2.41 – 4.27, categorized as lightly polluted. In the future, efforts to deal with water pollution are critical to meet the downstream water quality standards used as drinking water.
Evaluasi Pola Operasi Waduk Tamblang di Kabupaten Buleleng Provinsi Bali Mawiti Infantri Yekti; Tjokorda Gde Raka Wijakesuma; Kadek Diana Harmayani
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 11 No. 2 (2020)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2020.011.02.05

Abstract

Bendungan Tamblang dibangun untuk memenuhi kebutuhan irigasi dan air baku di Kecamatan Sawan dan Kecamatan Kubutamban Kabupaten Buleleng. Waduk ini berada di aliran Sungai Tukad Daya dan direncanakan mempunyai total tampungan sebesar 6,137,228 m3 sedangkan tampungan waduk efektif sebesar 4,199,646 m3. Fungsi Waduk Tamblang adalah untuk irigasi sebesar 584 ha serta penyediaan air baku sebesar 306 liter/detik. Simulasi operasi Waduk Tamblang menggunakan alternatif debit andalan 80% dan 90%. Data pendukung berupa data curah hujan harian, data debit permukaan aliran Sungai Tukad Daya dan data klimatologi dianalisis untuk mengetahui curah hujan andalan R50 dan R80, debit andalan, evapotranspirasi potensial, curah hujan efektif, kebutuhan air irigasi (KAI), serta kebutuhan air baku pada Kecamatan Sawan dan Kecamatan Kubutambahan. Operasi waduk disimulasikan ke dalam lima alternatif dengan keandalan inflow Q80 dan Q90. Hasil simulasi operasi Waduk Tamblang terjadi surplus pada simulasi alternatif 4 dan alternatif 5. Pola tanam alternatif 4 yaitu padi-jagung-kacang tanah dan alternatif 5 yaitu padi-buncis-bawang-kedelai dan ini sudah disesuaikan pada pola tanam eksisting. Hasil simulasi alternatif 4 dan 5 ini dapat memenuhi kebutuhan air baku dan air irigasi dengan persentase terlayani 100%.
Co-Authors Daniel Rizal Mahendra Debora Sofia Fransiska Hutagalung I Gede Andy Andika Parahita I Gusti Agung Gede Wiranata Baskhara Ida Ayu Rai Widhiawati Mawiti Infantri Yekti Ngk. Gd. A. Khrisna Wiryananda Ni Made Pertiwi Jaya Ni Nyoman Dewi Supriyani Tjokorda Gde Raka Wijakesuma