Moh. Sholichin
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya

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Sifat Kimia Air Tanah Di Wilayah Kelurahan Cemorokandang Kota Malang Siswoyo, Hari; Bisri, M.; Sholichin, Moh.; Yuliani, Emma; Asmaranto, Runi; A., Wahyu Nafier
Jurnal Teknik Pengairan Vol 4, No 1 (2013)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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One aspect that must be considered in order processing groundwater is the groundwater chemical characteristics. The purpose of this research is to assess and mapping the chemical characteristics of groundwater. To determine the chemical characteristics of this groundwater using the method of Pipers Trilinier Diagram with the help AquaChem package version 3.6 for Windows and to mapping the chemical characteristics of this groundwater with the help package Surfer 8. Based on the analysis results, it can be stated that the chemical characteristics of groundwater at the study site is generally has a carbonate hardness (secondary alkalinity) more than 50%, with cations bicarbonat type and anions no dominant type.Key Words: chemichal characteristic, groundwater, pipers trilinier diagram.
Analisa Kuantitas Dan Kualitas Airtanah Di Kabupaten Mojokerto Pranowo, Harri; Sholichin, Moh.; Montarcih, Lily
Jurnal Teknik Pengairan Vol 4, No 2 (2013)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Groundwater is one of the many alternative sources of water that has a large quantity and good quality. In the research area at Mojokerto regency, groundwater utilizing for irrigation but the use is limited, so it doesn’t cause environmental damage. This study aims to determine the quantity and quality of groundwater within the aquifer test, well test, and groundwater chemical test. For the aquifer test, this study use Long Period Test method to determine the type of flow between the steady state flow or unsteady state flow with the characteristics of confined aquifer, for well test in this research use step test method or step drawdown test method to determine the ability of wells production and the water quality test to determine the groundwater chemical characteristics with wilcox diagram and trilinier piper method with Aquachem 2011.1 demo version software. The results on the Mojokerto deep well (SDMJ) with an average depth of 100m - 120m including confined aquifer type, the existing discharge between 1.00 ltr / sec to 14.00 liters / sec, discharge potential between 2.33 ltr / sec to 33.07 liters / sec, optimum discharge between 3.90 ltr / sec to 19.80 liters / sec, for transmissivity values between 132.489 m 2 /day to 2047.140 m 2 /day, for the value of sea water intrusion (R) between 0.0727 meq / liter - 0.26027 meq / liter, on wilcox diagram the quality of water is in the (C2-S1) groups – with classification "Good" for agriculture. From the research result, the average quantity and the quality of groundwater wells pump is very good for agriculture.Keyword : Groundwater quality and quantity, aquifers, wells discharge, groundwater chemical, Aquachem version 2011.1 (demo version).
Analisa Kuantitas Dan Kualitas Airtanah Di Kecamatan Kubu Kabupaten Karangasem Provinsi Bali Wijayanti, Putu Ratih; Sholichin, Moh.; Sisinggih, Dian
Jurnal Teknik Pengairan Vol 4, No 2 (2013)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Kubu Subdistrict is located at Karangasem District and belongs to Tejakula Groundwater Basin. It is droughty region with few rainfalls compared to other region. The purpose of this research is to determine the quantity and the quality of groundwater for agriculture. The analysis of groundwater quantity is by applying the pumping test. The pumping test is divided into two stages, which are well test and aquifer test. Result of well test at 7 (seven) production wells is obtaining the optimum discharge ranging from 10.107 liter/second to 18.604 liter/second. Aquifer test analysis involves the first stage is to determine the type of flow from each well that is steady or unsteady flows, and then determine the method that will be used based on the type of flow and type of aquifer. In determining the type of flow is obtained steady flow types for 3 (three) wells and unsteady flow types for 4 (four) wells. Groundwater quality analysis is conducted by Aquachem software version 2011.1 (demo version). Based on the analysis of groundwater quality, groundwater is containing low and medium Sodium and have high and very high salinity.Keywords: quantity, quality, groundwater, wells test, aquifer test, Sodium.
Rencana Penjadwalan Pembagian Air Irigasi Daerah Irigasi Paguyaman Kanan Kabupaten Boalemo Provinsi Gorontalo Nadjamuddin, Dedy Febrianto; Soetopo, Widandi; Sholichin, Moh.
Jurnal Teknik Pengairan Vol 5, No 2 (2014)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Water availability is a major problem to be considered in determining cropping patterns in irrigated areas. Considering the importance of irrigation activities, there should be plan an optimal utilization of water in order to get maximum benefit from the existing water supply according to their function. Irrigation area of paguyaman is planned with two doors intercepts. Irrigation Area Paguyaman on right side, is planned to irrigate 4,176 ha of land where still have potential in the irrigated area expansion. Potential expansion of irrigated area is 1500 ha. Paguyaman Irrigation Area is still in the implementation stage of physical construction. The approach used as the basis arrangement for the water distribution is the approach in terms of a balance between the availability of water to the water requirements for crops. Allocating and distribution of water required in an integrated calculation attended by using a Linear Program.Key words: Optimization, Irrigation Area, Linear Program, Solver.
Analisa Pengendalian Banjir Kali Ciliwung Ruas Jembatan MT. Haryono – Pintu Air Manggarai Zamroni, Fahmi; Sholichin, Moh.; H., Andre Primantyo
Jurnal Teknik Pengairan Vol 6, No 1 (2015)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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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 Vol 7, No 1 (2016)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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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
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 Vol 8, No 1 (2017)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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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
ANALISIS PENGELOLAAN KUALITAS AIR DI PERAIRAN DANAU TONDANO Rares, Johan Peter; Sholichin, Moh.; Yuliani, Emma
Jurnal Teknik Pengairan Vol 7, No 2 (2016)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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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
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 Vol 8, No 1 (2017)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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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 SEBARAN TEKANAN AIRTANAH PADA CAT BRANTAS DAN UPAYA KONSERVASI DI KOTA BLITAR PROVINSI JAWA TIMUR Thadeus, Mario; Sholichin, Moh.; Asmaranto, Runi
Jurnal Teknik Pengairan Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstrak: PDAM Kota Blitar memiliki 19 sumur bor yang digunakan untuk pemenuhan kebutuhan air baku masyarakat Kota Blitar. Saat ini, hanya 6 sumur bor yang masih berfungsi yaitu SD 5, SD 10, SD 14, SD 17, SD 18, sedangkan 13 sumur lainnya sudah tidak berfungsi karena terjadi penurunan muka airtanah yaitu SD 1, SD 2, SD 3, SD 4, SD 6, SD 7, SD 8, SD 9, SD 11, SD 12, SD 13, SD 15, dan SD 16.Penelitian mengenai penurunan muka air tanah pada daerah studi menggunakan analisa FEMWATER pada paket program Groundwater Modelling System (GMS) 4.0. dimana output dari program GMS 4.0. adalah sebaran nilai pressure head, total head, dan kedalaman muka airtanah. Simulasi yang dilakukan pada penelitian ini adalah simulasi tiap periode pembangunan sumur bor, simulasi kemampuan sumur bor untuk memenuhi kebutuhan air baku di Kota Blitar hingga tahun 2029, dan simulasi untuk mencari debit optimal dari masing-masing sumur bor yang sebaiknya dikeluarkan.Pada periode pembangunan sumur bor tahun 1996, sebaran pressure head dan total head serta kedalaman muka airtanah pada sumur SD 1, SD 2, SD 3, dan SD 4 berada pada kedalaman yang mendekati screen bawah sumur sehingga menyebabkan tidak berfungsinya lagi keempat sumur tersebut. Penurunan kedalaman muka airtanah tersebut terjadi akibat adaya pembangunan sumur baru yaitu sumur SD 7 dan SD 8. Untuk pemenuhan kebutuhan air di tahun 2029, diambil asumsi sumur yang sudah tidak berfungsi lagi dapat diperbaiki dan difungsikan kembali. Dari 13 sumur yang rusak, hanya 10 sumur yang dapat diperbaiki, 3 lainnya tidak dapat diperbaiki karena lubang sumur yang sudah tidak ada. Hasil simulasi menunjukan, terdapat 10 sumur yang memiliki nilai pressure head di bawah screen bawah sumur yaitu sumur SD 1, SD 8, SD 9, SD 12, SD 13, SD 14, SD 15, SD 16, SD 18, dan SD 20. Tentunya membutuhkan tindakan konservasi terhadap airtanah sedini mungkin yaitu pengamanan daerah resapan sebagai daerah imbuhan di bagian hulu pada daerah studi.Kata kunci : Kedalaman muka airtanah, ketinggian tekanan, ketinggian total, GMS 4.0.  Abstract: PDAM in Blitar city has 19 wells bore which is used to fulfill the raw water needs of Blitar City. Currently, only 6 wells are still functioning, namely SD 5, SD 10, SD 14, SD 17, SD 18, while 13 other wells are not functioning due to the decrease of groundwater face that is SD 1, SD 2, SD 3, SD 4, SD 6, SD 7, SD 8, SD 9, SD 11, SD 12, SD 13, SD 15, and SD 16.Research on groundwater level reduction in the study area using FEMWATER analysis in the Groundwater Modeling System (GMS) program package 4.0. where the output of the program is GMS 4.0. Is the distribution of pressure head, total head, and groundwater depth. The simulations carried out in this research are the simulation of each well bore development period, the simulation of well bore capability to meet the raw water needs in Blitar City until 2029, and simulation to find the optimal debit from each wells that should be issued.During the period of 1996 borehole development, the distribution of pressure head and total head and groundwater depth at wells of SD 1, SD 2, SD 3, and SD 4 were at depth near the bottom of the well screen causing the failure of the four wells. The decrease of groundwater depth is caused by the construction of new wells namely SD 7 and SD 8 wells. For the fulfillment of water needs in 2029, the assumptions of wells that are no longer working can be repaired and re-functionalized. Of the 13 damaged wells, only 10 repairable wells, the other 3 can not be repaired because the wellbore is gone. The simulation results show that there are 10 wells that have pressure head value below the bottom well screen are SD 1, SD 8, SD 9, SD 12, SD 13, SD 14, SD 15, SD 16, SD 18, and SD 20. Certainly requires conservation measures on groundwater as early as possible that is securing the recharge area as an upstream area in the study area.Keywords: Groundwater depth, pressure head, total head, GMS 4.0.