cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota malang,
Jawa timur
INDONESIA
Jurnal Mahasiswa Jurusan Teknik Pengairan
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject :
Arjuna Subject : -
Articles 322 Documents
 7   8   9   10   11 
ANALISA EROSI DAN SEDIMENTASI MENGGUNAKAN APLIKASI MODEL AVSWAT 2000 DI DAS BAGEK KEMBAR KABUPATEN LOMBOK BARAT PROVINSI NUSA TENGGARA BARAT Nashrullah, Imam; Andawayanti, Ussy; Marsudi, Suwanto
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 1, No 2 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.094 KB)

Abstract

ABSTRAK : Di muara sungai Bagek Kembar akan dibangun PLTGU Lombok Peaker. Dalamupaya melindungi dan menjaga kelestarian bangunan PLTGU Lombok Peaker serta menjagakelestarian DAS Bagek Kembar, dilakukan analisa untuk memprediksi erosi dan sedimentasi padaDAS Bagek Kembar. Analisa ini akan mengkaji hasil erosi dan sedimentasi di DAS BagekKembar dengan menggunakan aplikasi model AVSWAT (Arc View Soil And Water AssessmentTool) 2000. Hasil perhitungan menggunakan AVSWAT 2000 mulai tahun 2000 sampai dengantahun 2009 didapatkan nilai laju erosi rata-rata pada DAS Bagek kembar adalah sebesar 58.48ton/ha/th dan hasil sedimen rata-rata sebesar 14.96 ton/ha/th atau 1.25 mm/th. Lokasi bangunanpengendali sedimen yang pertama (Check Dam 1) berada pada hilir subdas 12 dengan nilai IndeksBahaya Erosi (IBE) sangat tinggi, sedangkan lokasi bangunan pengendali sedimen yang kedua(Check Dam 2) berada pada hilir subdas 14 dengan nilai IBE sangat tinggi. Volume tampunganCheck Dam 1 adalah sebesar 7783.78 m3 diharapkan dapat mengontrol laju sedimentasi sebesar124% dari potensi laju sedimentasi normal. Sedangkan volume tampungan Check Dam 2 adalahsebesar 17142.86 m3 diharapkan dapat mengontrol laju sedimentasi sebesar 243% dari potensi lajusedimentasi normal.Kata Kunci : AVSWAT 2000, DAS Bagek Kembar, erosi, sedimentasi, Check DamABSTRACT : At the estuary of the Bagek Kembar River will be built PLTGU Lombok peaker. Inan effort to protect and maintain the sustainability of the building of PLTGU lombok peaker aswell as maintaining the conservation Bagek Kembar’s Watershed, an analysis was conducted topredict the erosion and sedimentation in Bagek Kembar’s Watershed. This analysis will examinethe results of erosion and sedimentation in Bagek Kembar’s Watershed by using the application ofthe model AVSWAT (Arc View Soil and Water Assessment Tool) 2000. Calculation using AVSWAT2000 from 2000 to 2009 was conducted to obtain the results of the average erosion rate on BagekKembar’s Watershed is 58,48 tons / ha / yr and the average sediment yield is 14,96 tons / ha / yror 1.25 mm / year. The location of the first Check Dam is located at downstream sub-watershed 10with the value of index of erosion hazard (IBE) very high, whereas the location of the secondCheck Dam is located at downstream sub-watershed 14 with the value of IBE very high. Thevolume of the first Check Dam is 7783.78 m3 and expected to control the sedimentation rate by124% of the potential of normal sedimentation rate. While the volume of second Check Dam is17142.86 m3 and expected to control sedimentation rate by 243% from the potential of normalsedimentation rate.Keywords : AVSWAT 2000, Bagek Kembar’s Watershed, erosion, sedimentation, Check Dam
STUDI PENENTUAN STATUS MUTU KUALITAS AIR WADUK BERDASARKAN PENGARUH TATA GUNA LAHAN PADA DAERAH TANGKAPAN AIR WADUK LAHOR Mufrodi, Syahrizal; Sayekti, Rini Wahyu
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 1, No 2 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1051.902 KB)

Abstract

ABSTRAK: Waduk Lahor merupakan waduk yang berlokasi di Kabupaten Malang Provinsi Jawa Timur dan dibangun untuk suplai air baku, suplai air irigasi, pengendalian banjir, pariwisata dan budidaya perikanan. Dengan adanya berbagai aktivitas di waduk dapat menyumbang beban pencemar yang akan meningkatkan unsur hara di waduk dan menurunkan kualitas perairan waduk. Analisa kualitas air yang dilakukan meliputi penentuan status mutu kualitas air di Waduk Lahor dengan menganalisis kandungan parameter kualitas air meliputi NH3-N, NO2-N, NO3-N, DO, BOD, TSS, dan Total P pada Waduk Lahor dengan menggunakan metode Indeks Pencemaran pada Bulan Januari hingga Desember pada tahun 2017. Berdasarkan hasil analisa status mutu air waduk Lahor didapat kondisi kualitas air pada Waduk Lahor memiliki status mutu air yaitu tercemar ringan. Analisis pengaruh tata guna lahan terhadap kualitas air di Waduk Lahor menggunakan aplikasi ArcSWAT (Arc Soil and Water Assesment Tool), yaitu kualitas air disimulasikan dari polutan di lahan dan perubahan dari parameter kualitas air di waduk dari tahun 2009 hingga tahun 2017. Dari hasil simulasi didapat bahwa jenis tata guna yang memberi beban masukan terbesar adalah berasal dari pertanian, hal ini dikarenakan pertanian merupakan jenis tata guna lahan yang dominan, dan pada analisis tingkat pencemaran kualitas air di Waduk Lahor selama tahun 2009 – 2017 kecenderungan terus mengalami peningkatan tiap tahunnya. Kata Kunci: mutu air, indeks pencemaran, tata guna lahan, ArcSWAT   ABSTRACT: Lahor Reservoir is located in Malang, East Java. This reservoir built for raw water supply, irrigation water supply, flood control, tourism and fishery cultivation. With the existence of various activities in the reservoir,it can contribute pollutant loads that will increase the nutrient in reservoirs and reduce the quality of reservoir waters.The water quality analysis include determining the quality status of water quality in Lahor Reservoir by analyzing the water quality parameter content including NH3-N, NO2-N, NO3-N, DO, BOD, TSS, and Total P in Lahor Reservoir by using Pollution Index in January until December in 2017. Based on the analysis of water quality status of Lahor reservoir, water quality condition in Lahor Reservoir has water quality status that is lightly contaminated. Analysis of the effect of land use in Lahor Reservoir using ArcSWAT (Arc Soil and Water Assessment Tool) application, by simulated water quality from pollutants in the land and changes of water quality parameters in reservoir from 2009 to 2017. From the simulation, the results are the type of land use that gives the largest input burden is derived from agriculture, this is because agriculture is the dominant type of land use and in the analysis of water quality pollution in Lahor Reservoir during 2009 - 2017 the trend continues to increase every year. Keyword: water quality, pollution index, land use, ArcSWAT
SIMULASI NUMERIS PERUBAHAN MORFOLOGI PANTAI DENGAN MENGGUNAKAN MODUL CMS-FLOW DI PANTAI NUSA DUA, BALI Nurhayati, Ima; Dermawan, Very; Putra, Sebrian Mirdeklis Beselly
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 1, No 2 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1619.292 KB)

Abstract

Abstrak Wilayah pantai di Indonesia sangat intensif digunakan untuk kegiatan manusia. Sebagai dampak dari kegiatan tersebut maka timbul masalah-masalah baru seperti erosi pantai. Untuk menanggulangi permasalahan tersebut pada pantai Nusa Dua, Bali dibangun satu segmen bangunan pengaman pantai (Groin) agar kondisi profil pantai menjadi seimbang. Untuk memahami kondisi tersebut dilakukan studi dengan menggunakan model numeris 2D Coastal Modelling System-Flow (CMS Flow) dalam interface SMS (Surface water Modelling System) v 11.0. CMS-Flow  digunakan untuk menghitung arus dan tingkatan air yang dikombinasikan gelombang saat bawah gesekan angin, gelombang, pasang surut, kekuatan coriolis, dan pengaruh struktur pantai. Variabel utama U, v-kecepatan, dan ketinggian air disimpan di poin grid yang sama dengan interpolasi momentum. Formula transpor sedimen unified, van Rijn, dan formula transpor non-equilibrium (NET). Pemodelan dilakukan dalam jangka menengah dengan waktu simulasi tiga bulan menggunakan 3 kondisi. Besaran nilai erosi dan sedimentasi terbesar merupakan fokus dari studi. Hasil pemodelan CMS-Flow menunjukkan kondisi krusial pantai terjadi pada segmen groin UG.1-GN.2 dan GN.2-G.12, hal ini disebabkan bentuk segmen groin yang kurang sesuai dengan pola arus yang ada. Evaluasi struktur groin di masa depan diharapkan dapat dilakukan dengan memperhatikan pola arus dan gelombang dominan datang untuk memperhitungkan jarak antar struktur, sehingga dapat mencegah terjadinya turbulensi dan gerusan.   Kata Kunci: Perubahan Morfologi, Analisis hidrodinamik, Groin, USACE CMS-Flow   Abstract The coastal areas of Indonesia are very intensive for human activities. As a result of these activities there are new problems such as coastal erosion. To solve the problem on the beach of Nusa Dua, Bali built a segment of coastal protection building (Groin) so that the condition of beach profile to be balanced. To understand the condition, a study using numerical modeling 2D Coastal Modeling System-Flow (CMS Flow) in SMS interface (Surface water Modeling System) v 11.0 is used. CMS-Flow is used to calculate the current and water levels of the combined waves when under wind, wave, tidal friction, coriolis strength, and the influence of coastal structures. The main variables U, v-velocity, and water level are stored in the same grid points as the momentum interpolation. Unified sediment transport formula, van Rijn, and non-equilibrium transport formula (NET). Modeling is done in the medium term with three months simulation time using 3 conditions. The largest value of erosion and sedimentation is the focus of the study. The CMS-Flow modeling results show that coastal crucial conditions occur in the groyne segments UG.1-GN.2 and GN.2-G.12, this is due to the shape of the groy segment that is less suited to the current pattern. Evaluation of the groyne structure in the future is expected to be done by observing the pattern of current and the dominant wave coming to take into account the distance between structures, so as to prevent turbulence and scour. Keywords: Morphological Change, Hydrodynamic Analysis, Groin, USACE CMS-Flow
STUDI PENGARUH TATA GUNA LAHAN TERHADAP KUALITAS AIR DI WADUK SELOREJO UNTUK BUDIDAYA PERIKANAN Ambong, Ahmad Ramadhan; Sayekti, Rini Wahyu
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 1, No 2 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1058.607 KB)

Abstract

ABSTRAK : Waduk Selorejo merupakan waduk yang berada di DAS Konto dan memiliki fungsi sebagai air baku, wisata, irigasi, dan untuk budidaya perikanan. Peningkaatan tata guna lahan dari tahun 2009 ke 2017 pada DAS Konto menyebabkan menurun nya kualitas air di Waduk Selorejo. Tujuan studi ini yaitu mengetahui kualitas air yang peruntukan nya untuk budidaya perikanan di Waduk Selorejo, yang meliputi parameter Nitrat(NO3-N), BOD, DO, Total Phospat, dan Total Suspended Solid. Tiga tahapan di lakukan dalam studi ini yaitu; analisis kualitas air parameter kimia di laboratorium, analisis status mutu air dengan menggunakan metode STORET, dan menggunakan aplikasi ARCSWAT 10.2.2. Hasil analisa kualitas air tahun 2009 dan 2017 menggunakan metode STORET, jumlah skor dari hasil perhitungan sistem nilai “US-EPA” adalah -24 dan -24. Hasil beban pencemaran eksisting Waduk Selorejo menggunakan simulasi ArcSWAT untuk polutan inflow NO3-N adalah 1.292 mg/l dan 1.034 mg/l, inflow polutan Phospat sebesar 0.158 mg/l dan 0.144 mg/l, inflow polutan BOD 7.494 mg/l dan 6.151 mg/l, inflow polutan DO sebesar 7.673 mg/l dan 7.449 mg/l, dan polutan Total Suspedended Solid sebesar 29.952 mg/l dan 55.6 mg/l setiap bulan nya. Sehingga dapat disimpulkan bahwa status mutu air Waduk Selorejo tergolong Kelas C dengan kondisi air waduk tercemar sedang.Kata Kunci: Kualitas air, Metode STORET, Waduk Selorejo, ARCSWAT ABSTRACT: Selorejo reservoir is a reservoir located in Konto watershed and has function as raw water, tourism, irrigation, and for aquaculture. Land use alteration from 2009 to 2017 in Konto watershed has led to a decrease in water quality in Selorejo Reservoir. The purpose of this study is to know the quality of the water that its allotment for fishery cultivation in Selorejo Reservoir, which includes parameters of Nitrate (NO3-N), BOD, DO, Total Phospat, and Total Suspended Solid. Three stages are done in this study, namely; water quality analysis of chemical parameters in the laboratory, analysis of water quality status using STORET method, and using ARCSWAT 10.2.2 application. The results of water quality analysis in 2009 and 2017 using STORET method, the total score from the calculation of "US-EPA" value system is -24 and -24. Result of contamination burden of Selorejo Reservoir using ArcSWAT simulation for NO3-N inflow pollutant is 1,292 mg / l and 1,034 mg / l, Phospat pollutant inflow of 0.158 mg / l and 0.144 mg / l, pollutant infusion BOD 7,494 mg / l and 6,151 mg / l, DO pollutant inflow of 7,673 mg / l and 7,449 mg / l, and Total Suspended Solids pollutants of 29,952 mg / l and 55.6 mg / l per month.So it can be concluded that the water quality status of Selorejo Reservoir belongs to Class C with the condition of medium contaminated.Keywords: Water quality, STORET Methods, Selorejo Damn, ArcSWAT
Aplikasi ArcGIS Untuk Analisa Laju Erosi Dan Upaya Konservasi Lahan DAS Wlingi Provinsi Jawa Timur Pujanarko, Oktavian Anggih; Sisinggih, Dian; Asmaranto, Runi
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 1, No 2 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.051 KB)

Abstract

Wlingi Watershed at river flow Brantas River and located in the Jegu Village and is about 16 km east of Blitar City. The inhabitants of Wlingi Basin are predominantly farmers and thus have great potential to increase the acceleration of land conversion in the watershed. Estimation of erosion and integrated conservation techniques is needed in managing the Wlingi Basin, so its utilization can be run optimally and maintained to be utilized by future generations. This study aims to find out distribution of level of erosion grade in 2011, 2016 and after simulation of land conservation changes in Wlingi Basin. The method used is USLE (Universal Soil Loss Equation) with ArcGIS software. From the result of analysis it was found that level of erosion grade of 2016 in the Wlingi Basin area covered by very slight (<1,75 tons/ha/year) to very severe (>92,5 tons/ha/year) with percentage of erosion grade 35,23%, 31,70%, 18,11%, 6,71% dan 8,24% respectively. Land conservation directives are carried out to reduce the rate of erosion. The post-conservation in the Wlingi Basin area includes very  slight  to  very  severe  with  the  percentage of  47,68%,  31,43%,  9,66%,  6,10%  dan  5,12%. Decreased erosion rates are good occured following the simulation of land conservation, so land conservation is a mandatory for sustainable land using.
RASIONALISASI STASIUN PENAKAR HUJAN TERHADAP PERUBAHAN BESARNYA CURAH HUJAN RANCANGAN PADA DAS RONDONINGO, KABUPATEN PROBOLINGGO nurfitriani, Alvina; Limantara, Lily Montarcih
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.642 KB)

Abstract

ABSTRAK: Pengembangan sumber daya air membutuhkan analisis hidrologi berdasarkan data  curah hujan, data debit,dan data  iklim yang benar, untuk menghasilkan perencanaan, penelitian, dan pengelolaan sumber daya air yang  efektif dan efisien. Untuk menentukan jumlah stasiun penakar hujan dan penyebaranya yang ideal, maka perlu dilakukan analisa rasionalisasi stasiun Penakar hujan metode World Meteorological Organization (WMO), metode Kagan Roda dan metode bobot. Pada DAS Rondoningo seluas 233 Ha telah terpasang 8 stasiun penakar hujan, menurut analisa metode WMO diketahui terlalu rapat. Berdasarkan rasionalisasi metode Kagan Roda dan metode Bobot dapat ditentukan cukup3stasiun hujan dipertahankan dan 5 stasiun hujan ditutup. Hujan rancangan metode Gumbel dan Log Person III,berdasarkan data hujan antara 8 stasiun hujan dan dari 3 stasiun hujan menghasilkan selisih ysng kecil 8mm s/d10 mm, Hal ini mempertegas bahwa pada DAS Rondoningo tidak perlu dipasang 8 stasiun tetapi cukup dipasang 3 stasiun hujan.   Kata kunci: Penakar hujan eksisting, Rasionalisasi hidrologi, penakar hujan efektif dan efisien   ABSTRACT: The Development of water resources requires hydrological analysis based on rainfall data, discharge data, and correct climate data, to produce an effective, efficient water resources planning, research and management. To determine the ideal number of rain gauge station and its ideal distribution, it is necessary to analyze rationalization of World  Meteorological Organization (WMO) method, Kagan Roda method and score method. In the 233 Ha DAS Rondoningo  has been installed 8 rain gauge stations. According to WMO method analysis it is considered to be too tight. Based on the rationalization of the Kagan Roda method and the Score method only 3 rain gauge stations are maintained, while 5 rain gauge stations should be closed . The rain desing of the Gumbel  methodand Log Person III method, based on rain data between 8 rain gauge stations and from 3 rain gauge stations, resulted in a small difference of 8mm to 10 mm. This confirms that in the Rondoningo basin there is no need to install 8 stations, but only 3 rain gauge stations are enough to install. Key words: existing rain gauge, hydrological rationalization, rain gauge effective and efficient.
ANALISA EROSI DAN SEDIMENTASI BERBASIS SISTEM INFORMASI GEOGRAFIS (SIG) PADA BAGIAN HULU DAS CILIWUNG KABUPATEN BOGOR JAWA BARAT Razianto, Muhamad Zakaria; Suhartanto, Ery; Fidari, Jadfan Sidqi
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1796.737 KB)

Abstract

ABSTRAK : Aktivitas alih fungsi lahan yang tidak sesuai dengan arahan fungsi kawasan berdampak buruk bagi ekosistem pada DAS Ciliwung. Bencana longsor, pendangkalan pada dasar sungai akibat sedimentasi dan banjir dengan kandungan lumpur pada bagian hilir sering terjadi pada DAS Ciliwung. Untuk menyelesaikan masalah-masalah yang terjadi pada DAS Ciliwung perlu dilakukan usaha konservasi dengan metode tata guna lahan baru (skenario) dan penentuan lokasi checkdam pada bagian Hulu DAS Ciliwung. Penelitian dengan model ArcSWAT 2012 bertujuan untuk menghitung besarnya limpasan, erosi dan sedimentasi yang terjadi pada DAS Ciliwung Hulu. Proses kalibrasi menggunakan tahun 2007, 2011, 2013, verifikasi pada tahun 2014 dan hasil eksisting pada tahun 2015. Hasil simulasi pada kondisi eksisting menunjukan besarnya limpasan rata – rata 140.84 mm/tahun, erosi rata – rata 66.28 ton/ha/tahun dan sedimentasi rata – rata 43143.41 m3. Kondisi tersebut menunjukkan tingkat kekritisan lahan pada DAS Ciliwung Hulu dengan kriteria semi kritis seluas 925.47 ha (6.31% luas DAS), kritis seluas 8662.5 ha (57.37% luas DAS) dan super kritis seluas 5510.88 ha (36.5% luas DAS). Dengan usaha konservasi tata guna lahan baru dalam kurun waktu 15 tahun dapat menurunkan limpasan sebesar 30.51%, erosi sebesar 54.69% dan sedimentasi 66.55%. Dalam kurun waktu 1 tahun efektivitas penanganan sedimentasi dengan usaha konservasi tata guna lahan baru (skenario) sebesar 4.36% dan checkdam sebesar 8.56%.   Kata kunci : Perubahan tata guna lahan, ArcSWAT 2012, Limpasan, Erosi, Sedimentasi   ABSTRACT : The activity of land conversion which was not in accordance with the direction of the function of the area has a negative impact on the ecosystem in Ciliwung Watershed. The landslide, sedimentation at the bottom of the river due to silting and flooding with mud content on the downstream often occurred in Ciliwung Watershed. To solve the problems occurring in Ciliwung Watershed, conservations should be carried out with new land use methods (scenarios) and determination of checkdam sites in the upstream of Ciliwung Watershed. ArcSWAT 2012 model is used in aims to calculate the amount of runoff, erosion and sedimentation occurred in upstream of Ciliwung Watershed. Land use in 2007, 2011 and 2013 were used for the calibration, verification process was done with 2014 and 2015 was used for the existing result. Simulation results on existing conditions shows an average runoff rate of 140.84 mm/year, average erosion rate of 66.28 ton/ha/year and average sedimentation rate of 43143.41 m3. The condition showed the critical level of land in upper watershed of Ciliwung with semi – critical criteria covering 925.47 ha (6.31% of watershed area), critical area of 8662.5 ha (57.37% of watershed area) and super critical area of 5510.88 ha (36.5% of watershed area). With the conservation of new land use within 15 years could decrease runoff by 30.51%, erosion of 54.69% and sedimentation 66.55%. within a period of 1 year the effectivity of handling sedimentation with new land use conservation (scenarios) of 4.36% and checkdam of 8.56%.  Keywords: Land use changes, ArcSWAT 2012, Watershed, Run off, Erosion, Sedimentation
STUDI TINJAUAN KELAYAKAN EMBUNG GROJOGAN DESA PLANDAAN KECAMATAN PLANDAAN KABUPATEN JOMBANG Hartanto, Tomy Dwi; Rispiningati, Rispiningati; Cahya, Evi Nur
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.733 KB)

Abstract

The need for clean water to support human activities continues to increase due to an increasing in population and irrigation needs. Dams and small dam can be an alternative for water management to correct water in the rainy season and being in the dry season. The purpose of Grojogan’s small dam construction is for irrigation of paddy fields in Plandaan sub-district. The greater the water corrected from small dam, the greater its contribution to the profitability of the agricultural system so as to know the magnitude of the carrying capacity of the small dam on the agricultural cropping pattern in the irrigation area. The purpose of this research is to know the magnitude of bearing capacity of small dam on agricultural cropping pattern both economically, socially, and environment. The method used is descriptive analytics. Data are collectied by interview, observation and documentation study. In this research of initial feasibility studies, water balance, and economic analysis. The result of the research shows that the water balance in Grojogan’s small dam is positive, meaning that the water debit that can be accommodated in the small dam is able to supply the irrigation water requirement for 86 Ha, land. The result of economic analysis with usage age for 10-year small dam found the benefit-cost ratio (B / C) ratio = 3.096, while the benefit difference is Rp. 9.858.913.731,21, and the internal rate of return is 36.35%. In the calculation of sensitivity analysis it is found that with the change of values ​​up to 20%, the project is still safe under the value fluctuations.
STUDI KELAYAKAN BANGUNAN PENANGGULANGAN BANJIR DI SUNGAI MUJUR DESA TEMPEH TENGAH KECAMATAN TEMPEH KABUPATEN LUMAJANG Tri Admaja, Septyan Cahya; Wicaksono, Prima Hadi
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (879.759 KB)

Abstract

Gunung Semeru merupakan salah satu gunung api paling aktif di Indonesia yang terletak di antara wilayah administrasi Kabupaten Malang dan Lumajang. Produk letusan utama dari Gunung Semeru adalah lontaran material pijar, guguran awan panas dan lahar di musim hujan masuk ke sungai-sungai yang berhulu di Gunung Semeru diantaranya adalah Sungai Mujur. Daerah Aliran Sungai Mujur memliki luas DAS 208,31 km2. Kondisi dinding penahan (revetment) di Sungai Mujur Desa Tempeh Tengah, Kecamatan Tempeh Kabupaten Lumajang kapasitas dan kualitasnya sudah banyak berkurang seperti di hulu Dam Soponyono tanggul sisi kiri jebol. Upaya penangggulangan banjir direncanakan dengan menggunakan dinding penahan/revetment. Analisa profil aliran dilakukan dengan menggunakan software HEC-RAS 4.1.0, sedangkan untuk analisa stabilitas lereng revetment menggunakan Metode Fellenius. Perencanaan pengendali banjir Sungai Mujur menggunakan debit banjir rancangan Q25 th yaitu sebesar 192,98 m3/dt. Pada kondisi eksisting ditemukan 3 patok cross section yang meluber. Hasil analisa perencanaan bangunan revetment didapat II alternatif perencanaan. Alternatif I dengan tinggi revetment 3,7 m di hulu Dam Soponyono dan 4,6 m di hilir Dam Soponyono dengan kondisi penampang sungai asli. Untuk Alternatif II dengan tinggi revetment 3,2 m di hulu Dam Soponyono dan 4,6 m di hilir Dam Soponyono dengan dilakukan normalisasi pada penampang sungai. Kata kunci: Banjir, HEC-RAS, stabilitas, dinding penahan, revetment Mount Semeru is one of the most active volcanoes in Indonesia, located between the administrative areas of Malang and Lumajang Regencies. The main eruption product from Mount Semeru is a burst of incandescent material, hot clouds and lava in the rainy season into the rivers that headed at Mount Semeru include the Mujur River. Mujur watershed has an area of  208.31 km2. The condition of retaining  wall in Mujur River of Tempeh Tengah Village, Tempeh Sub-district of Lumajang Regency, its capacity and its quality have decreased as much as in the upstream Dam Damonyono dam. Efforts to control floods are planned using retaining walls. Flow profile analysis was performed using HEC-RAS 4.1.0 software, while for stability analysis of revetment slope using Fellenius Method. Planning for flood control of the Mujur River uses a flood discharge of Q25th design which is 192.98 m3/sec. In the existing conditions found 3 cross section stakes that overflow. The results of the analysis of the planning of the revetment building obtained II alternative planning. Alternative I with a 3.7 m high revetment upstream of Soponyono Dam and 4.6 m downstream of Soponyono Dam with the original river cross section. For Alternative II with high revetment 3.2 m upstream of Soponyono Dam and 4.6 m at downstream of Soponyono Dam by normalization at river cross section.  Key words: Flood, HEC-RAS, stability, retaining wall, revetment
STUDI EVALUASI KELAYAKAN SISTEM INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) RUMAH POTONG HEWAN (RPH) GADANG KABUPATEN MALANG yuriski, ryan isra'; haribowo, riyanto; sholichin, moh.
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1348.462 KB)

Abstract

ABSTRAK: Total limbah yang dihasilkan peternakan dan proses penguraian menjadi faktor dalam kelayakan sistem IPAL. Lokasi studi di Rumah Potong Hewan Gadang, Malang. dengan melihat kandungan BOD, COD, TSS, Minyak&Lemak, NH3-N serta pH pada IPAL serta mengevaluasi kelayakan eksisting IPAL dan prosesnya. Kemudian dibandingkan dengan baku mutu air limbah dalam PermenLH No.02 Tahun 2006. Hasil proyeksi debit 10 tahun kedepan dengan memprediksi efektifitas daya tampung IPAL. Debit yang dihasilkan pada proses pemotongan tersebut sekitar ±158,014 m3/hari dengan jumlah per sapi sekitar 4,515 m3/ekor/hari sebanyak ±35ekor/hari tahun 2017. Setelah pengolahan IPAL, limbah cair menuju sungai yang berada ±200m dari lokasi RPH. Hasil tersebut sebagai acuan untuk 2018-2027, Debit tersebut melebihi batas maksimum dalam Baku Mutu limbah sapi yaitu 1,5 m3/ekor/hari. Pada IPAL terdapat dua parameter diambang batas yaitu Minyak&Lemak dan COD disebabkan parameter yang masih belum terurai. Pada bak pengendap tidak ada alat atau desain guna  mengurangi kadar parameter dan tidak efektifnya bak pemisah lemak. Untuk mengoptimalkan proses pengolahan, kondisi eksisting perlu dilakukan perbaikan atau perluasan pada bak minyak dan lemak agar kinerja bak selanjutnya bekerja maksimal dan mengalihfungsikan bak disinfektan dikarenakan ada bak biofilter yang fungsinya lebih efisien dan tampungan lebih luas.   Kata kunci: Pengolahan IPAL,Pemotongan Hewan,Evaluasi Kelayakan IPAL, Efisiensi Sistem IPALABSTRACT: The total waste generated by the farm and the decomposition process is a factor in the feasibility of the WWTP system. Study locations at Gadang Animal House, Malang. by looking at the content of BOD, COD, TSS, Oil & Fat, NH3-N as well as pH at WWTP as well as evaluating the feasibility of existing WWTP and its process. Then compared with the quality standard of waste water in PermenLH No.02 Year 2006. The result of debit projection 10 years ahead by predicting the effectiveness of the capacity of WWTP. The discharges produced at the cutting process are approximately ± 158,014 m3 / day with the number of cows per 4.515 m3 / head / day as much as ± 35k / d in 2017. After the processing of WWTP, the wastewater into the river is ± 200m from the RPH location. The result is as a reference for 2018-2027, the Debit exceeds the maximum limit in Cash Waste Quality Standard which is 1.5 m3 / head / day. In the IPAL there are two parameters at the boundary that is Oil & Fat and COD due to parameters that still have not decompose. In a sedimentary tub there is no tool or design to reduce the level of parameters and ineffectiveness of the fat separator. To optimize the process of processing, the existing condition needs to be repair or extension on the tub oil and fat for subsequent maximum performance of the tub and disinfectant tube functioning because there is a biofilter tub that function more efficient and wider. Key words: IPAL Processing, Animal Cutting, IPAL Feasibility Evaluation,Efficiency of WWTP                    System  ABSTRACT: The total waste generated by the farm and the decomposition process is a factor in the feasibility of the WWTP system. Study locations at Gadang Animal House, Malang. by looking at the content of BOD, COD, TSS, Oil & Fat, NH3-N as well as pH at WWTP as well as evaluating the feasibility of existing WWTP and its process. Then compared with the quality standard of waste water in PermenLH No.02 Year 2006. The result of debit projection 10 years ahead by predicting the effectiveness of the capacity of WWTP. The discharges produced at the cutting process are approximately ± 158,014 m3 / day with the number of cows per 4.515 m3 / head / day as much as ± 35k / d in 2017. After the processing of WWTP, the wastewater into the river is ± 200m from the RPH location. The result is as a reference for 2018-2027, the Debit exceeds the maximum limit in Cash Waste Quality Standard which is 1.5 m3 / head / day. In the IPAL there are two parameters at the boundary that is Oil & Fat and COD due to parameters that still have not decompose. In a sedimentary tub there is no tool or design to reduce the level of parameters and ineffectiveness of the fat separator. To optimize the process of processing, the existing condition needs to be repair or extension on the tub oil and fat for subsequent maximum performance of the tub and disinfectant tube functioning because there is a biofilter tub that function more efficient and wider.  Key words: IPAL Processing, Animal Cutting, IPAL Feasibility Evaluation,Efficiency of WWTP                     System

Page 9 of 33 | Total Record : 322

 7   8   9   10   11 

Filter by Year

2017 2020


Reset
Filter By Issues
All Issue Vol 4, No 1 (2020) Vol 3, No 2 (2020) Vol 3, No 1 (2019) Vol 2, No 2 (2019) Vol 2, No 1 (2018) Vol 1, No 2 (2018) Vol 1, No 2 (2018) Vol 1, No 1 (2018) Vol 1, No 1 (2017)