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Jurnal Teknik Pengairan Jurusan Teknik Pengairan Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang
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Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Published by Universitas Brawijaya
ISSN : 20861761     EISSN : 24776068     DOI : 10.21776
Core Subject : Engineering,
Jurnal Teknik Pengairan is a scientific journal published regularly twice per year by Faculty of Engineering, Universitas Brawijaya. The paper submitted in this journal covers the fields of Water Resources Information System, Water Resources Conservation, Water Resources Utilization and Efficiency, Water Structure Engineering Planning and Water Resources Engineering Basic Knowledge. The submitted paper can be a summary of research reports or scientific literature review. The language used in this journal is either English or Indonesian.
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Articles 270 Documents
Analisis Kekeringan Pada Daerah Aliran Sungai (DAS) Bedadung Berbasis Sistem Informasi Geografis (SIG) Kurniawan, Ainur Rofiq; Bisri, M; Suhartanto, Ery
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.03

Abstract

The reduced of water availability toward the needs is one thing that indicates the occurrence of a drought. The drought has received more attention from Government of Jember Regency in the form of a drought disaster area management direction. The location of this research is in the Bedadung River Basin with 13 rainfall station located in the upstream of Rowotamtu AWLR Station. Drought analysis uses the Palmer Drought Severity Index method in the form of index that informs the level of drought in an area. The results of the study showed that drought with extreme dry classification occurs from June to October with drought index values ranging from -1,82 (on June) to -14,14 (on October). Patrang, Jelbuk, Arjasa and Panti sub-districts are areas that have experienced drought with a duration of 5 months. Palmer method meteorological drought index and hydrological drought index (value of AWLR Discharge Standardized Box Cox Transformation (Z)) have unidirectional relationship and high degree of relationship, with the Pearson correlation coefficient, r = 0,91
Analisis Transpor Sedimen Serta Pengaruh Aktivitas Penambangan Pada Sungai Sombe, Kota Palu, Sulawesi Tengah Pratama, Muhammad Iqbal; Legono, Djoko; Rahardjo, Adam Pamudji
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.02

Abstract

Sedimentation problems occuring in Sombe River is a phenomenon of sediment grainsor particles entrained from the riverbank avalanche. The problem is exacerbated when there is moderate to high intensity rainfall, causing sediment material transported by a flood. Moreover, sand mining activities also affect the changes in the riverbed. The research aims to identify and estimate the quantity of sediment transport and the effect of the mining activities on the riverbed changes in Sombe River. In this research, direct measurement in Sombe river and observation of the mining activities in Sombe River are conducted to collect sediment samples and river morphology data. Thenceforth, the collected data will be analyzed using Rottner and Van Rijn method. According to the result of the calculation, the average of sediment discharge in Sombe River with a return period of 1 year, 2 years, 5 years and 10 years are Rottner method is 2.1 x 10 7 - 3.8 x 10 7 Tons/year; Van Rijn method is 4.0 x 10 7 – 6.9 x 10 7 Tons/years.
Analisis Konservasi Air Berbasis Zero Run Off (Studi Kasus Kawasan Block Office Balai Kota Among Tani Kota Batu) Tri A., Dini Rosvita; Bisri, Mohammad; Andawayanti, Ussy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.08

Abstract

The development of Batu as a tourist and agropolitant city has led to some concern, such as water resources. The number of springs has increasingly declined due to the conversion of forest into agriculture land, residential, and tourist sites. Therefore, it’s necessary to maintain equilibrium through the process of extracting and replenishment of rain water by absorbing it into soil pores as water conservation efforts. This study examines the analysis of water conservation based on the concept of zero runoff, located in the Block Office area. It is expected to become input for the Batu City Government and be developed in those area. The analysis of surface runoff is calculated by Rational Method. The dimension of recharged well is calculated by using SNI method 03 2453 2002. The magnitude of design discharge obtained with 5 years return period is 111,408 mm. Reharged well is planned with 5 meters height and 1 meter diameter. Recharged well used for 100 m roof area is 1. Water conservation technology by using recharged well is able to collect runoff from the roof, while retention pool collect and absorb runoff from the parking area, road, and yard.
Analisis Prediksi Debit Sungai Amprong Dengan Model Arima (Autoregressive Integrated Moving Average) Sebagai Dasar Penyusunan Pola Tata Tanam Rahayu, Wiwin Sri; Juwono, Pitojo Tri; Soetopo, Widandi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.04

Abstract

An accurate determination of water availability in the 10-day period of the Amprong River has an important role in the planting system to support the agricultural production process in DI. Kedungkandang, because if the availability of water is not precisely determined, there will be an error in regulating irrigation water and its use is not as expected. To overcome these problems, an analysis system is needed that is able to make predictions well. One of the time series models is the ARIMA (Autoregressive Intregated Moving Average) model. The model was built by 9 period discharge data, namely 2008/2009 until 2016/2017, to predict the discharge of period 2017/2018. Of the ten tentative models obtained, there are only five models that are worth using. The best model is the ARIMA model (2,0,1) (1,2,1) 36 with the value of MSE = 22,90; KR = 6.00; MSD = 8.05; MAD = 2.04; MAPE = 18.53 and MPE = -8.98. In second crop season the crop intensity of paddy increased from 55.79% to 64.50%, and the production of GBK increased by 13.50%. While the third crop season paddy crop intensity increased from 37.22% to 49.99%, and GBK production increased by 25.54%.
Analisis Keandalan Data Penakar Hujan Otomatis Sebagai Acuan Koreksi Perkiraan Hujan Radar Hambali, Roby; Legono, Djoko; Jayadi, Rachmad
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.09

Abstract

The reliability test of automatic rain gauge data in the Mt. Merapi region is highly needed considering that the data is used as a reference to correct the X-band MP radar rainfall estimates error. Rain gauge stations containing unreliable data need to be eliminated so that radar rainfall estimates can be adjusted based on reliable data only. This paper discusses the technique of examining the reliability of rain gauge data using a two-way analysis of variance. The method used in variance analyzing is the Scheffe test, where the difference in the mean value of the two rain gauge stations is compared with the critical value of the Scheffe test. The criteria appointed to declare 'reliable' is if the number of stations that have a significant difference with the reviewed station is less than two. A total of 5939 10-minute rainfall intensity data from 21 rain gauge stations in the Mt. Merapi region were used in the analysis. The results show that six of the 21 rain gauge stations contain unreliable data to use as a reference for correcting radar rainfall estimates. The Scheffe test is considered excellent and straightforward to apply to find out the variance of mean values between rain gauge stations.
Analisa Limpasan Berdasarkan Curah Hujan Menggunakan Model Artifical Neural Network (ANN) di Sub Das Brantas Hulu Suhartanto, Ery; Cahya, Evi Nur; Maknun, Lu’luil
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.07

Abstract

Discharge data is usually less available than rainfall data, so it is necessary to find a relationship between river flows that are applied in the period available rainfall data in a watershed area. The purpose of this study is to determine the suitability of the method based on the analysis of data validation between the observed discharge and the model discharge. The method is done by modeling the discharge based on rainfall with the Artificial Neural Network (ANN) MATLAB R2014b program. The Upper Brantas Watershed is used as a case study because it often has runoff problems. Validation of the ANN method was tested with Root Mean Square Error (RMSE), Nash-Sutcliffe Efficiency (NSE), Correlation Coefficient (R) and Relative Error (KR). From the results of calibration using the ANN Model, the best data is found in the five years data of epoch 500. Verification results based on the value of R have a relatively good relationship between observation discharges with model discharges. The validation results show the validity in a year data of epoch 500.
Studi Penentuan Status Mutu Air Menggunakan Metode Indeks Pencemaran Dan WQI Di Tukad Badung, Denpasar Gupta, Made Dimas Permata; Haribowo, Riyanto; Prayogo, Tri Budi
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.2020.011.02.02

Abstract

Berkembangnya pertumbuhan penduduk secara pesat membuat keberadaan sumber daya air yang tersedia meliputi kualitas air menurun. Selain itu dipengaruhi juga oleh adanya perubahan tata guna lahan yang dulunya ruang terbuka hijau menjadi daerah permukiman dan industri. Analisa dilakukan untuk mengetahui kualitas air Tukad Badung Tahun 2012-2020, Data yang digunakan didapatkan dari Balai Wilayah Sungai Bali Penida dengan 5 titik pemantauan kualitas air yang akan dianalisa dengan menggunakan Metode Indeks Pencemaran (IP) dan Water Quality Index (WQI). Lalu setelah mendapatkan nilai indeks kualitas airnya, akan dilakukan simulasi industri dengan menggunakan data industri dan data nilai indeks kualitas air. Parameter yang digunakan dalam penelitian ini meliputi BOD, COD, DO, suhu, pH, TSS,  Kadmium (Cd), Seng (Zn), Tembaga (Cu), Kromium (Cr), Timbal (Pb), Bakteri E.Coli, Bakteri Coliform, Nitrat (NO3-), Nitrit (NO2-),  Phospat (PO43-). Hasil analisa pada Tahun 2020 dengan menggunakan metode Indeks Pencemaran mendapatkan hasil 100% dalam kondisi tercemar ringan. Sedangkan hasil pada metode Water Quality Index mendapatkan hasil 100% adalah tercemar ringan. Hasil simulasi industri I dan II tidak jauh berbeda karena nilai indeks kualitas airnya tidak jauh berbeda.
Perencanaan Proses Pengolahan Lindi di TPA Nusa Lembongan dengan Menggunakan Kolam Stabilisasi Jatmoko, Muhammad; Adinda, Aulia Risky; Siregar, Farhan Hadi; Dalimunthe, Rika Chairani; Sari, Mega Mutiara; Suryawan, I Wayan Koko
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 12, No 2 (2021)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2021.012.02.08

Abstract

Tempat pemrosesan akhir (TPA) sampah secara open dumping dapat ditemukan di Pulau Nusa Lembongan, Provinsi Bali. Sampah yang ditimbun dengan proses open dumping cenderung menghasilkan dampak lingkungan, salah satu dampak tersebut adalah air lindi. Untuk mencegah dampak lingkungan maka diperlukan pengolahan lindi, salah satunya adalah dengan kolam stabilisasi. Tujuan dari studi ini adalah mengetahui luas lahan yang dibutuhkan dan prediksi effluent air limbah yang dikeluarkan dari perencanaan kolam stabilisasi. Perencanaan ini dilakukan dengan menggunakan data sekunder dan pengolahan data secara deskriptif dari kajian literatur. Perhitungan debit air limbah dari data intensitas hujan memperlihatkan debit air lindi dapat mencapai 4.579,2 liter⁄hari dengan kualitas air lindi yang cenderung biodegradable. Unit yang dibutuhkan untuk mencapai standar minimum kualitas lindi adalah bak ekualisi, kolam anaerobik, kolam fakultatif, kolam maturase, dan anaerobic baffle reactor (ABR). Total kebutuhan lahan dari unit tersebut adalah 0,013 ha. Sedangkan kualitas effluent berdasarkan parameter utama biochemical oxygen demand (BOD) adalah 9,8 mg/L, dimana baku mutu yang disyaratkan adalah 100 mg/L.The final waste processing (TPA) of open dumping waste can be found on Nusa Lembongan Island, Bali Province. Garbage that is stockpiled by the open dumping process tends to produce environmental impacts, one of these impacts is leachate. To prevent environmental impacts, it is necessary to treat leachate, one of which is a stabilization pond. The purpose of this study is to determine the area of land required and the prediction of wastewater discharged from the stabilization pond design. This planning is done by using secondary data and descriptive data processing from the literature review. The calculation of wastewater discharge from rain intensity data, leachate discharge can reach 4,579.2 liters a day with leachate quality which tends to be biodegradable. The units needed to achieve the minimum quality standard of leachate are equalization tanks, anaerobic ponds, facultative ponds, maturation ponds, and anaerobic baffle reactors (ABR). The total land requirement of the unit is 0.013 ha. While the quality of the effluent based on the main parameter of biochemical oxygen demand (BOD) is 9.8 mg/L, where the required quality standard is 100 mg/L.
Analisis Debit Rencana Tukad Unda Bagian Hilir Menggunakan HEC-HMS Pariartha, I Putu Gustave Suryantara; Arimbawa, I Kadek Dika; Yekti, Mawiti Infanteri
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 12, No 2 (2021)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2021.012.02.04

Abstract

Pembangunan waduk muara yang berlokasi di Tukad Unda merupakan pembangunan dalam tahap perencananaan. Waduk muara dibangun sebagai infrastruktur mitigasi bencana prasarana pengendali banjir. Perkiraan pembangunan waduk muara dari tahun 2020 sampai dengan tahun 2022. Penelitian ini bertujuan untuk mencari debit banjir rencana pada DAS Tukad Unda sebagai pertimbangan dalam pembangunan tersebut. Dalam penelitian ini digunakan dua metode untuk mencari debit banjir rencana, diantaranya metode perhitungan HSS Nakayasu dan metode model HEC-HMS. Debit banjir rencana yang dihitung menggunakan perhitungan HSS Nakayasu pada kala ulang 5 tahun, 10 tahun, 20 tahun, 25 tahun, 50 tahun, dan 100 tahun mempunyai debit puncak (Qp) sebesar 478.70 m3/dt, 649.33 m3/dt, 763.08 m3/dt, 910.01 m3/dt, 1019.02 m3/dt, dan 1128.03 m3/dt. Sedangkan debit banjir yang dihitung dengan metode HEC-HMS pada kala ulang 5 tahun, 10 tahun, 20 tahun, 25 tahun, 50 tahun, dan 100 tahun mempunyai debit puncak (Qp) sebesar 514,3 m3/dt, 697,6 m3/dt, 819,8 m3/dt,  977,7 m3/dt, 1094,8 m3/dt, dan 1211,9 m3/dt. Parameter yang ditemukan melalui program HEC-HMS adalah initial abstraction sebesai 99,987 mm, curve number sebesar 35,018, dan impervious sebesar 16 %.The construction of estuary reservoir located in Unda River is a development in the planning stage. Estuary reservoirs are built as disaster mitigation infrastructure for flood control. The construction of estuary reservoir is planned from 2020 to 2022. This research aims to find the flood design discharge of Tukad Unda watershed plan as consideration in the construction development. In this study, two methods were used to calculate the flood design discharge such as the HSS Nakayasu calculation method and the HEC-HMS model method. Flood design discharge calculated using HSS Nakayasu calculation at 5 years, 10 years, 20 years, 25 years, 50 years, and 100 years have peak discharge (Qp) respectively are 478.70 m3/s, 649.33 m3/s, 763.08 m3/s, 910.01 m3/s, 1019.02 m3/s, and 1128.03 m3/s. While flood discharge calculated by HEC-HMS method at 5 years, 10 years, 20 years, 25 years, 50 years, and 100 years have peak discharge (Qp) respectively are 514.3 m3/s, 697.6 m3/s, 819.8 m3/s, 977.7 m3/s, 1094.8 m3/s, and 1211.9 m3/s. The parameters found through the HEC-HMS program are an initial abstraction of 99,987 mm, a curve number of 35,018, and an impervious of 16%.
Perencanaan Jaringan Air Bersih di Desa Bolok Kecamatan Kupang Barat Kabupaten Kupang Makunimau, Jordy Georgia; Krisnayanti, Denik Sri; Karels, Dolly W.
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 12, No 2 (2021)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2021.012.02.09

Abstract

Desa Bolok merupakan salah satu desa di Kabupaten Kupang  yang belum terlayani oleh pelayanan penyediaan air bersih. Belum tersedianya pelayanan air bersih menjadi masalah untuk masyarakat memenuhi kebutuhan air hariannya. Penelitian ini ditujukan untuk merencanakan jaringan perpipaan air bersih agar membantu masyarakat Desa Bolok memenuhi kebutuhan air bersihnya. Jaringan perpipaan air bersih direncanakan menggunakan software Epanet 2.0 dengan perhitungan kehilangan energi menggunakan metode Hazen William. Terdapat 2 sumber air yang bisa dipakai yaitu sumur bor Taman Eden milik Desa Bolok dengan debit air 1,314 ltr/detik dan sumur bor milik PDAM Kabupaten Kupang dengan debit air 5 ltr/detik. Proyeksi penduduk pada tahun 2028 dilakukan dengan metode aritmatik, geometrik dan least square. Berdasarkan hasil uji standar deviasi dan koefisien korelasi, maka digunakan hasil proyeksi penduduk dengan metode geometrik yaitu 4075 jiwa. Hasil proyeksi penduduk ini kemudian digunakan untuk proyeksi terhadap fasilitas umum yang ada di Desa Bolok. Berdasarkan perhitungan, total kebutuhan rata-rata air Desa Bolok pada tahun 2028 adalah 5,00 ltr/detik. Pipa yang digunakan adalah galvanized iron pipe (GIP) dengan diameter berkisar antara 25 mm – 125 mm. Volume reservoir yang direncanakan adalah 90 m3  dengan ukuran panjang = 5 m, lebar = 4,5 m dan tinggi = 4 m.Bolok village is a village in Kupang district that have not served by water supply. The unavailable water supply is a problem that people should deal with in fulfill their daily water requirements. This research aims to planning water supply system to help people of Bolok village to fulfill their daily water requirements. The system planned by the Epanet 2.0 software using Hazen William Method. 2 water sources that can be used for the system planning that are Taman Eden bored-well owned by Bolok village with the discharge is 1,314 ltrs/sec and bored-well owned by Kupang District PDAM with the discharge is 5 ltrs/sec. Its population projection in 2028 done by arithmetic method, geometric, and least square. Based on the deviation standard and correlation coefficient test result, used the population projection result with geometric results is 4075 people. This projection result then is used to project the Bolok’s exist public facilities. The result is, the village’s total average water requirements in 2028 is 5.00 ltr/sec. The planned pipe type is galvanized iron with diametre range 25 mm – 125 mm. The planned reservoir volume is 90 m3 with length = 5 m, width = 4,5 m, and height = 4 m.

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