Article Per Year (5 Year)
p-Index From 2020 - 2025
1.817
P-Index
This Author published in this journals
All Journal The Journal of Experimental Life Sciences (JELS) Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Teknologi dan Rekayasa Sumber Daya Air
Moh. Sholichin
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Engineering Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Physics

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 28 Documents
Search

 1   2   3 
Studi Potensi Tanah Longsor Dan Upaya Pengendaliannya Di Wilayah Sub DAS Konto Hulu Darmawan, Arif Rahmad; Sholichin, Mohammad; Limantara, Lily Montarcih; Andawayanti, Ussy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1946.92 KB)

Abstract

Landslides often occur in the Upper Konto sub watershed. To anticipate the future landslide, the landslide susceptibility map was made that show the landslide potential areas. Eight thematic maps as landslide susceptibility formula parameters used to develop a landslide susceptibility map that includes three daily maximum cumulative rainfall, slope, geology rocks, the presence of faults, regolith soil depth, land use, the presence of road infrastructure, and population density. Determination of susceptibility value is the sum of the multiplying of scores for each parameter with the weight of each parameter. Based on the value of vulnerability, landslide susceptibility maps generated from the overlay analysis of the multiplication results of the score and weight of the eighth parameters with the Geographic Information Systems (GIS)program. The results of this study is the potential for landslides in the Upper Konto sub watershed consists of not susceptible at 1.24%, slightly susceptible at 12.12%, moderatelysusceptible 84.17%, and susceptible at 2.38%, so do very vulnerable while there but very small. Landslide control efforts can be divided into short-term treatment with mechanical methods in accordance with the level of susceptibility and long-term treatment with vegetative methods in accordance with the area function and the level of susceptibility.Keyword: potential landslides, landslide susceptibility formula, control efforts
Kajian Pengembangan Sistem Penyediaan Air Bersih Pada Daerah Rawan Air Di Desa Sumbersih Kecamatan Panggungrejo Kabupaten Blitar Rohmaningsih, Elin; Sholichin, Moh.; Haribowo, Riyanto
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 8, No 1 (2017)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1156.431 KB) | DOI: 10.21776/ub.jtp.2017.008.01.05

Abstract

Tujuan dari penelitian ini adalah mengkaji usaha pengembangan sistem penyediaan air bersih di Desa Sumbersih, pada aspek hidrolika, kualitas air, dan ekonomi. Analisa hidrolika dan kualitas air dilakukan memakai program WaterCAD V8i. Analisa ekonomi untuk menentukan harga air, dilakukan dengan skenario pengoperasian pompa menggunakan listrik dan solar cell. Hasil analisa hidrolika menunjukkan bahwa kondisi hidraulis jaringan perpipaan masih pada batas persyaratan teknis yang ditentukan, dengan kecepatan 0,03-0,97 m/dt, headloss gradient 0,09-14,45 m/km dan tekanan 11,18-69,31 mH2O. Kemudian, model hidrolika tersebut digunakan untuk analisa sisa klorin. Penginjeksian klorin dilakukan pada tandon sebesar 0,4 mg/l secara konstan. Sisa klorin yang dihasilkan memenuhi persyaratan yaitu 0,34-0,39 mg/l. Hasil analisa ekonomi menunjukkan bahwa skenario dengan solar cell memberikan harga air lebih rendah yaitu Rp 6.550,00/m3. Berdasarkan kemampuan membayar masyarakat Rp. 4.200,00/m3, dapat diketahui bahwa nilai subsidi pemerintah yang diperlukan sebesar Rp. 685.400.000,00.
Analisa Pengendalian Banjir Kali Ciliwung Ruas Jembatan MT. Haryono – Pintu Air Manggarai Zamroni, Fahmi; Sholichin, Moh.; H., Andre Primantyo
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 1 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (688.659 KB)

Abstract

Flooding is an annual problem occurs in DKI Jakarta. Generally the cause of flooding in Jakarta happened because of two major factors, the natural factor that flooding is influenced by 13 rivers that cross the DKI Jakarta and the human factor that changes the function areas border the river.In this study made seven simulations of alternative flood control at Ciliwung River segment MT. Haryono to Manggarai Sluice with flood plan discharge 100 years. Furthermore the most optimum alternative is determined taking into account the volume of runoff occurring and the budget plan costs.Based on analysis of the hydraulics and analysis of budget plan costs obtained that the most optimum alternative is the normalization of Ciliwung River segment MT. Haryono to Manggarai Sluice. The volume on the main channel is 1.730.520 m 3 and overflow did not occur. High water level at observation point P-174 and P-1 respectifely are +14,05 m and +8,76 m the average water level lossis 4,57 m with construction costs 694.668.698.520,55 IDR.Keywords :Flood control, Ciliwung River, reduction of overflow, cost.
STUDI TEKANAN ALIRAN AIRTANAH UNTUK KONSERVASI DI KECAMATAN RANOMEETO DAN RANOMEETO BARAT KABUPATEN KONAWE SELATAN PROVINSI SULAWESI TENGGARA Muhammad, Muhammad; Sholichin, Moh.; Asmaranto, Runi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 7, No 1 (2016)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (844.844 KB)

Abstract

Abstrak:  Airtanah yang merupakan sumberdaya alam terbarukan dewasa ini telah  menjadi barang ekonomis yang  memiliki peran yang cukup strategis. Namun saat ini  muka airtanah di sumur bor  yang tersebar di Kecamatan Ranomeeto dan Ranomeeto Barat, cenderung turun yang berakibat sebagian pompa sumur tidak bisa lagi mengisap air untuk irigasi. Penelitian ini menggunakan basic perhitungan numeric finite element dengan alat bantu sofware Model Groundwater Modelling System (GMS) 4.0. Tujuannya adalah untuk mengetahui tekanan aliran airtanah dan dampak penambahan sumur bor. Hasil hitung terhadap tekanan yang diperoleh dari permodelan GMS 4.0 membuktikan bahwa setiap penambahan 1 unit sumur terjadi penurunan tekanan sebesar 0,027 m sampai dengan 0,3 m. Tekanan airtanah terendah terjadi pada sumur P.40 KDI sebesar 8,863 m dan tertinggi pada sumur P.11 KDI nilai tekanan 45,992 m. Debit optimum pemompaan yang digunakan sebaiknya tidak melebihi 5,7 lt/det - 14,05 lt/det. Untuk mempertahankan keberadaan airtanah perlu dilakukan kegiatan konservasi berupa penghijauan pada daerah imbuhan, pembuatan sistem drainase resapan, pembangunan waduk kecil untuk menampung air hujan yang melimpas dan  pemompaan berdasarkan debit optimum.Kata Kunci : Tekanan, Airtanah, GMS 4.0, Debit Optimum, Konservasi. Abstract:  Groundwater which is a renewable natural resource today has become an economical item that has a strategic role. However, the current well groundwater levelthat was scattered in Ranomeeto and West Ranomeeto districts, tends to decrease so the well pump can no longer pump up the water for irrigation. This research uses basic numerical calculation by finite element software tools Model, it is Groundwater Modelling System (GMS) 4.0. The goal is to know the groundwater pressure and the impact of additional wells. Results from GMS 4.0 modelling shows that each additional 1 unit well was decrease pressure from  0,027 m up to 0.3 m. The lowest pressure occurs in groundwater wells P.40 KDI as 8.863 m and the highest pressure occurs at P.11 KDI as 45.992 m. The recommended optimum discharge pumping should not exceed 5,7 lt/sec - 14,05 lt/sec. To maintain the sustainability of groundwater need to do conservation activities such as reforestation in recharge areas, catchment drainage system installment, construction of small reservoirs to collect the spill rain water run off and do pumping based on optimum discharge.Kata Kunci: Pressure, Groundwater, GMS 4.0, Optimum Discharge,  Conservation
ANALISIS PENGELOLAAN KUALITAS AIR DI PERAIRAN DANAU TONDANO Rares, Johan Peter; Sholichin, Moh.; Yuliani, Emma
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 7, No 2 (2016)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1267.784 KB)

Abstract

ABSTRAK: Penelitian ini mengkaji tentang pengelolaan kualitas air Danau Tondano berdasarkan hasil pengambilan sampel parameter-parameter kualitas air dan pemodelan AVSWAT 2000, WASP. Wilayah lahan DAS Danau Tondano memiliki potensi tinggi penghasil bahan pencemar masuk ke perairan danau. Lahan DAS hulu, Das Kanan, DAS kiri secara berurut memiliki rerata potensi pencemaran: kadar organik N sebesar 0,038 kg/Ha/hari,0,025 kg/Ha/hari, 0,057 kg/Ha/hari, nilai organik P sebesar 0,005 kg/Ha/hari, 0,003 kg/Ha/hari, 0,004 kg/Ha/hari, nilai NO3 sebesar 0,002 kg/Ha/hari, 0,001 kg/Ha/hari, 0,051 kg/Ha/hari. Hasil penelitian ini menyatakan bahwa kondisi kesuburan Danau Tondano berada pada level eutrofik, dimana inflow polutan tertampung di perairan danau Tondano khususnya untuk parameter Total N dan Total P adalah sebesar 0,03 kg/m2/tahun dan 0,003 kg/m2/tahun dimana telah mencapai level eutrofik berturut-turut untuk Total N dan Total P yaitu sebesar 0,0625 kg/m2/tahun dan 0,0033 kg/m2/tahun. Penyimpangan hasil simulasi AVSWAT 2000, terhadap debit pemodelan dan lapangan, nilai R2 = 0.9303,  level signifikan ≤ 10. Hasil penelitian ini mengusulkan upaya penanganan, yaitu penanganan di DAS: Penataan kawasan DAS dan menghambat laju transpor polutan sungai menuju Danau Tondano dengan menempatkan cek dam di sungai-sungai bagian hulu Danau Tondano, perlindungan lereng dengan membuat talud-talud untuk lahan-lahan yang memiliki kelerengan yang besar, bertujuan untuk menghambat laju erosi lahan, dan pembangunan wetland sebagai bangunan pemurnian air sebelum masuk ke Danau Tondano. Sedangkan untuk penanganan di perairan terdiri dari penertiban KJA, pengadaan pipa apung sebagai pembatas penyebaran eceng gondok pada Danau Tondano,  serta pengadaan tanaman air sepanjang pinggir Danau Tondano. Kata Kunci: Daya tampung beban pencemar , mesotrofik, eutrofik, kesuburan danau, debit pemodelan ABSTRACT: This study reviews the Tondano lake water quality management based on the results of sampling of water quality parameters and modeling AVSWAT 2000, WASP. Lake Tondano watershed has a high potential for producing pollutants enter the lake. Upstream, right, and left watershed average sequentially potential contamination of: the organic N content of from 0,038 kg/ha /day, 0,025 kg/ ha/ day, 0,057 kg/ha/day, organic P value of 0,005 kg/ha/day,0,003 kg/ha/day, 0,004 kg/ha /day, NO3 value of from 0,002 kg/ha/day, 0,001 kg/ha/day, 0,051 kg/ha/day. The results of this study show that the fertility conditions Tondano lake level eutrophic, where the inflow of pollutants from land upstream accomodated in aquatic of Lake Tondano, especially in Total N and Total P parameters is 0,03 kg/m2/year and 0,003 kg/m2/year, where have reach  the eutrophic level of both Total N and Total P respectively at values of 0,0625 kg/m2/year and 0,0033 kg/m2/year. Deviations simulation results of AVSWAT 2000 discharge model due to field discharge, the value of R2 = 0.9303, a significant level ≤10. The results of this study suggest treatment effort; Structuring the watershed  and and inhibits the rate of transport of pollutants rivers toward Lake Tondano  by placing checkdams in the rivers upstream side of the lake, slope protection by making retaining walls  for lands that have a large slope, aiming to inhibit the rate of soil erosion, and wetland construction as the building water purification before entering into Lake  Tondano.  As for handling in the waters, consist of curbing KJA (Floating Fish Cage) , building  floating pipes as for limiting the spread of water hyacinth on the lake, as well as the provision of water plants along the edge of Lake Tondano .  Keywords: Pollutant load capacity, mesotrophic, eutrophic, fertility, discarge modelling
ANALISA PENGARUH PERUBAHAN PENUTUPAN LAHAN TERHADAP DEBIT SUNGAI SUB DAS METRO DENGAN MENGGUNAKAN PROGRAM ARCSWAT Harifa, Ayisya Cindy; Sholichin, Moh.; Prayogo, Tri Budi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 8, No 1 (2017)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.349 KB) | DOI: 10.21776/ub.jtp.2017.008.01.01

Abstract

ABSTRAK: DAS memiliki karakteristik yang spesifik sebagai daerah hidrologi, berkaitan dengan unsur utamanya seperti jenis tanah, tata guna lahan, topografi, kemiringan dan panjang lereng. Analisa karakteristik tersebut dilakukan dengan menggunakan pemodelan Soil Water Assesment Tool (SWAT). Tujuan penelitian ini adalah, mengidentifikasi kondisi eksisting tahun 2014, mengetahui pola perubahan lahan tahun 2002, 2006, 2009, dan 2014, mengetahui dampak perubahan terhadap Curve Number, limpasan permukaan dan sedimen, menilai kondisi DAS. Hasil simulasi menunjukkan bahwa perubahan penutupan lahan menyebabkan nilai CN, limpasan dan debit sungai semakin besar. Nilai CN berada di kisaran 11 – 96, debit rata-rata tahunan berkisar antara 1.923 – 3.591 m3/dt, dan besarnya limpasan yang terjadi sebesar 3.03 – 1914.28 mm. Berdasarkan hasil kalibrasi, hasil menunjukkan p-factor sebesar 0.85, dan p-factor hasil validasi sebesar 0.83, sehingga simulasi dianggap valid. Penilaian kinerja DAS menunjukkan bahwa di wilayah studi dalam kategori kinerja yang buruk. Keyword: Penutupan Lahan, Limpasan, SWAT ABSTRACT: Watershed as hydrologic area, characterized by specific element such as soil, land cover, topographic, land slope and length of slope. Soil Water Assessment Test (SWAT) is a suitable hydrologic modeling system to analyze many character in watershed. The aim of this study are to identified land cover in 2014, to determine the pattern of land cover changes in 2002, 2006, 2009 and 2014, determine the impact of land cover changes related to curve number, surface runoff, and sedimentation, assess the watershed condition. Simulation result showed that land cover changes have resulted in corresponding increase in curve number, surface runoff, and stream flow. Curve number was about 11 – 96, yearly discharge was about 1.923 – 3.591 m3/s, and surface runoff was about 3.03 – 1914.28 mm. Calibration result showed that p-factor value is 0.85, and validation result showed that p-factor value of 0.83, it means that simulation was valid. Base on watershed assessment, concordance of land cover and surface runoff in the bad category. Keyword: Land Cover, Surface Runoff, SWAT
KAJIAN PENGEMBANGAN JARINGAN DISTRIBUSI AIR BERSIH PADA PDAM TIRTA BARITO KOTA BUNTOK Diana, Eka Wahyu; Sholichin, Mohammad; Haribowo, Riyanto
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PDAM of Buntok City is a supplier of clean water needs for the area of Buntok Kota, Hilir Sper, Jelapat and Pamait villages. Utilization of discharge is not optimal and water loss is service constraint. This study aims to realize a distribution network system that is able to serve up to 2038 by evaluating the existing conditions of clean water distribution networks,network development plans, water quality and economic analysis to determine water prices. The results of hydraulic simulation show that the existing conditions of pressure and headloss gradient meet technical criteria while the speed is not up standard. Then the development simulation meets the technical requirements of 0,3-4,5 m/s, headloss gradient 0-15 m/km, pressure 0,5-8 atm. Simulation of residual injection chlorine concentration at the inlet reservoir of 0,4 mg/l are given constantly. The results of residual chlorine simulation meet the criteria of 0,383-0,395 mg/l. Economic analysis found that water prices were Rp.6.100,00/m³,BCR 1,23 IRR 12,14% and 11-year BEP. Analysis of the ability of the community to pay Rp.4.200/m³, the amount of government subsidy is Rp.13.905.747.800,00.
Studi Evaluasi dan Efektivitas Instalasi Pengolahan Air Limbah (IPAL) PT. Kelola Mina Laut Gresik Sinantrya, Mutiara; 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 (115.02 KB)

Abstract

ABSTRAK: PT. Kelola Mina Laut Gresik merupakan industri yang memproduksi pengolahan hasil perikanan. Selain menghasilkan produk yang bermanfaat PT. Kelola Mina Laut Gresik juga menghasilkan limbah cair yang dapat membawa dampak negatif bagi lingkungan sekitar industri. Oleh karena itu, limbah cair dari PT. Kelola Mina Laut Gresik perlu diolah terlebih dahulu sebelum dibuang ke lingkungan. PT. Kelola Mina Laut Gresik telah memiliki Instalasi Pengolahan Air Limbah (IPAL) dengan kapasitas 750 m3/hari. Kondisi Eksisting IPAL tersebut tidak mampu untuk mengolah air limbahnya dikarenakan debit air limbah yang dihasilkan terkadang melebihi kapasitas IPAL yang disediakan. Pada studi ini dilakukan pengambilan sampel air limbah pada inlet dan outlet sebanyak empat kali. Hal ini bertujuan untuk mengetahui air limbah yang dihasilkan sudah memenuhi baku mutu atau belum serta untuk memprediksi debit dan beban pencemar jika terjadi penambahan jumlah produksinya hingga tahun 2023. Parameter air limbah pada kondisi eksisting yang diuji adalah pH sebesar 7 mg/L , TSS sebesar 0,2 mg/L, H2S sebesar 0,11 mg/L, NH3-N sebesar 3,25 mg/L, khlor bebas sebesar <0,1 mg/L, BOD5 sebesar 87,56 mg/L, COD sebesar 133,46 mg/L, serta minyak dan lemak sebesar 5,28 mg/L. Dengan hasil yang diperoleh maka dapat disimpulkan IPAL masih efisien. Setelah itu, kondisi eksisting bangunan IPAL dibandingkan dengan perhitungan yang sesuai dengan kriteria desain bangunan IPAL yang telah ditentukan. Debit air limbah yang dihasilkan pada tahun 2018 sebesar 661,447 m3/hari sedangkan pada tahun 2023 sebesar 668,315 m3/hari Hasil dari evaluasi IPAL PT. Kelola Mina Laut Gresik didapatkan rekomendasi seperti penambahan unit bangunan berupa bak pengendapan awal dan bak kontrol sebagai bioindikator. ABSTRACT: PT. Kelola Mina Laut Gresik is an industry that produces processing of fishery products. In addition to producing useful products, also wastewater produced by PT. Kelola Mina Laut Gresik can have negative impacts on the environment around the industry. Therefore PT. Kelola Mina Laut Gresik wastewater need to be treated before it discharged into the environment. PT. Kelola Mina Laut Gresik has Wastewater Treatment Plant (WWTP) with capacity of 750 m3/day. Existing conditions was unable to process its own wastewater due to wastewater discharge generated sometimes exceed the capacity of the WWTP is provided. In This study, sampling has been conducted on the inlet and outlet Wastewater Treatment Plant (WWTP) four times. Which aims to determine whether wastewater meet the quality standards pursuant and also to predict the discharge and pollutant load in the event of an increase in the amount of production by 2023. Wastewater parameters in existing conditions are pH of 7 mg/L, TSS of 0,2 mg/L, H2S of 0,11 mg/L, NH3-N of 3,25 mg/L, khlor free of <0,1mg/L, BOD5 of 87,56 mg/L, COD of 133,46 mg/L, oil and fats of 5,28 mg/L.With the result obtained, WWTP is still efficient. After that, the existing condition of the building WWTP compared with the calculation according to the WWTP building design criteria have been determined. The inflow wastewater in 2018 amounted 661,447 m3/day and the prediction of inflow wastewater in 2023 amounted 668,315 m3/day, From the evaluation Wastewater Treatment PT. Kelola Mina Laut Gresik obtained on such additional units of settlement batch and control batch for bioindicator
PERENCANAAN SISTEM DISTRIBUSI AIR BAKU DI DESA NGLINGGIS KECAMATAN TUGU KABUPATEN TRENGGALEK DENGAN MENGGUNAKAN APLIKASI WATERCAD V8I. Nugraha, Aldi; Haribowo, Riyanto; Sholichin, Moh
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 2 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Desa Nglinggis merupakan desa yang terletak di Kecamatan Tugu Kabupaten Trenggalek, dalam kesehariannya dalam memenuhi kebutuhan air baku warga di Desa Nglinggis sangat mengandalkan sumber air tanah, akan tetapi tidak semua warga memilikinya. Dengan dibangungnnya Bendungan Tugu di Desa Nglinggis yang dapat dijadikan suplai air baku untuk memenuhi kebutuhan air baku. Tujuan dari penelitihan ini merupakan untuk merencanakan sistem jaringan air baku di Desa Nglinggis, meliputi aspek hidrolika, kualitas air, dan ekonomi. Dalam perhitungan hidrolika dan kualitas air memakai program WaterCAD V8i. Sedangkan untuk perhitungan ekonomi dilakukan dengan cara manual dengan menggunakan program Excel, hasil dari analisa menunjukan kondisi hidrolis jaringan pipa masih pada batas persyaratan teknis yang ditentukan, dengan kecepatan sebesar 0,100 m/dt – 1,293 m/dt, headloss gradient 0,074 m/km – 14,557 m/km dan tekanan 1,105 atm – 9,986 atm, sedangkan untuk sisa klorin 0,300 mg/l – 0,400 mg/l. Analisa ekonomi menunjukan harga air rendah sebesar Rp. 2.242,20/m3 dengan nilai proyek sebesar Rp. 681.716.000,00.Nglinggis Village is a village located in Tugu Subdistrict, Trenggalek Regency, in its daily life in meeting the raw water needs of residents in Nglinggis Village, they rely heavily on ground water sources, but not all residents have them. With the construction of the Tugu Dam in Nglinggis Village that can be used as raw water supply to meet the needs of raw water. The purpose of this research is to plan the raw water network system in Nglinggis Village, covering aspects of hydraulics, water quality, and economy. In the calculation of hydraulics and water quality using the WaterCAD V8i program. Whereas for economic calculations done manually using the Excel program, the results of the analysis showed the hydraulic conditions of the pipeline are still within the limits of the specified technical requirements, with speeds of 0.100 m / s - 1,293 m / s, headloss gradient 0.074 m / km - 14,557 m / km and a pressure of 1,105 atm - 9,986 atm, while for the remaining chlorine 0,300 mg / l - 0,400 mg / l. Economic analysis shows a low water price of Rp. 2,242.20 / m3 with a project value of Rp. 681,716,000.00.
Studi Erosi Menggunakan Model Agricultural Non-Point Source Pollution (AGNPS) pada DAS Kali Lamong Provinsi Jawa Timur Majid, Haidar Naufal; Sholichin, Moh.; Asmaranto, Runi
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 2 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Perubahan tata guna lahan dari yang semula hutan menjadi lahan pertanian, perkebunan, maupun ladang berdampak pada tingginya laju erosi pada DAS Kali Lamong, Kabupaten Gresik, Provinsi Jawa Timur. Studi ini bertujuan untuk memetakan kondisi existing persebaran laju erosi beserta tingkat bahaya erosi pada DAS Kali Lamong, sehingga kemudian dapat diberikan saran penanggulangan berupa skenario lahan baru. Perhitungan menggunakan model Agricultural Non-Point Source Pollution (AGNPS) diperoleh laju erosi rata-rata DAS sebesar 31,771 ton/ha/tahun. Hasil analisis tingkat bahaya erosi berdasarkan Indeks Bahaya Erosi oleh Hammer (1981) diperoleh indeks dengan tingkat rendah (indeks <1) seluas 460,8 km2, tingkat sedang (indeks 1-4) seluas 200,88 km2, tingkat tinggi (indeks 4-10) seluas 42,93 km2, dan tingkat sangat tinggi (indeks >10) seluas 63,27 km2. Berdasarkan perhitungan sediment delivery ratio (SDR), didapatkan hasil perkiraan sedimen sebesar 34.228,031 ton/tahun atau 28.532,231 m3/tahun. Skenario lahan baru disusun berdasarkan RLKT - Departemen Kehutanan. Dari hasil simulasi skenario lahan baru, tidak didapati indeks bahaya erosi pada tingkat tinggi maupun sangat tinggi. Hasil tersebut menunjukkan skenario lahan yang baru dapat mengurangi laju erosi dan tingkat bahaya erosi pada DAS Kali Lamong. The transformation of land-use from forestry into agricultures, plantations, and fields have an impact on the high-rate of erosion at Kali Lamong Watershed, Gresik Regency, East Java Province. This study is purposed to map the existing condition of the erosion rate and the erosion hazard level at Kali Lamong Watershed, so that it can be resolved in the form of a new land-use scenario recommendation. Based on the calculation by using the Agricultural Non-Point Source Pollution (AGNPS) model, it is obtained the watershed’s average erosion rate of 31,771 ton/ha/year. The analysis result of the  erosion hazard level using the Erosion Hazard Index by Hammer (1981), shows that the index at low level (index <1) in an area of 460,8 km2, medium level (index 1-4) in an area of 200,88 km2, high level (index 4-10) in an area of 42,93 km2, and very high level (index >10) in an area of 63,27 km2. Based on the calculation of the sediment delivery ratio (SDR), it is obtained the sediment value of 34.228,031 ton/year or 28.532,231 m3/year. The new land-use scenario is arranged based on RLKT from the Indonesian Department of Forestry. From the simulation of the new land-use scenario result, it is not obtained the erosion hazard index at either high or very high level. The result shows that the new land-use scenario can reduce the erosion rate and the erosion hazard level at Kali Lamong Watershed. 
Co-Authors A.A. Ketut Agung Cahyawan W Andono, Rizky Harsya Andre Primantyo H., Andre Primantyo Arif Rahmad Darmawan AS Dwi Saptati Nur Hidayati, AS Dwi Saptati Nur Ayisya Cindy Harifa Bambang Ismuyanto Dedy Febrianto Nadjamuddin, Dedy Febrianto Dian Sisinggih Diana, Eka Wahyu Donny Harisuseno Emma Yuliani Endang Purwati RN Evi Nur Cahya Fahmi Zamroni, Fahmi Ferina, Marisa Ayu Firhand Maulana hari siswoyo Harri Pranowo Indrajayatama, Ridho Satria Ismuyanto , Bambang Kurniawan, Dita Cahya Leo Arbi Wibowo Lily Montarcih Limantara M. Bisri Majid, Haidar Naufal Mohammad Rahdiansyah Batubara, Mohammad Rahdiansyah Nugraha, Aldi Pitojo Tri Juwono Putu Ratih Wijayanti Qadri S, Wahyuddin Rares, Johan Peter Rispiningtati Rispiningtati Riyanto Haribowo Riyanto Haribowo Rohmaningsih, Elin Runi Asmaranto Saptati N. H., A. S. Dwi Sinantrya, Mutiara Susilo, H. Tri Budi Prayogo, Tri Budi Ussy Andawayanti Very Dermawan Wahlul Sodikin Wahyu Nafier A. Widandi Soetopo Yogi Ricardo P Simanjuntak yuriski, ryan isra'