Article Per Year (5 Year)
p-Index From 2021 - 2026
3.817
P-Index
This Author published in this journals
All Journal Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Penelitian Pendidikan IPA (JPPIPA) Civil and Environmental Science Journal (CIVENSE) JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Jurnal Kridatama Sains dan Teknologi Gema Wiralodra Jurnal Sains dan Edukasi Sains Jurnal Pengabdian Masyarakat untuk Negeri (UN-PENMAS) Jurnal Teknologi dan Rekayasa Sumber Daya Air
Emma Yuliani
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya Malang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

Published : 50 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 50 Documents
Search

 1   2   3   4   5 
Studi Evaluasi Kualitas Dan Status Trofik Air Waduk Selorejo Akibat Erupsi Gunung Kelud Untuk Budidaya Perikanan Sayekti, Rini Wahyu; Yuliani, Emma; Bisri, Mohammad; Juwono, Pitojo Tri; Prasetyorini, Linda; Sonia, Fauzia; Putri, Ayu Pratama
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 (654.69 KB)

Abstract

Selorejo dam in Malang regency has been used as a water storage and for freshwater fishery. On February 13 th 2014, Mount Kelud was erupted and produced volcanic ash which fell into the reservoir and caused an imbalanced water quality.The research was conducted in order to (a) observe a comparison between field measurement (temperature, turbidity, DO, pH, ammonia, nitrite, nitrate, total-P, Cu, Zn, Pb, Cr, and silica) and water quality standard in both upstream and middle station,(b) to determine time interval needed by each parameter to meet permitted value for freshwater fishery, (c) to determine water quality status using Pollution Index method, (d) to determine main contributors to the water pollution, (e) to determine trophic status index of Selorejo dam prior to and after the eruption, and (f) to analyze trophic status index fluctuation and pollution load capacity after the eruption.Method that was used to determine water quality status was Pollution Index. Trophic status index determined by comparing trophic status index standard on PerMenLH tahun 2009 with total-P, NO3N, chlorophyll a, and water clarity.The result from this research shows (a) before eruption, 40% of field measurement in upstream station and 28% of field measurement in middle station do not meet the standard values required. After eruption, 31% of field measurement in upstream station and 36% of field measurement in middle station do not meet the standard values required, (b) time interval needed for each parameters to meet permitted values are 111 days (pH and nitrate), 71 days (DO), 54 days (turbidity), while total-P and silica have not meet the required values up to the end of observation period, (c) water quality status in Selorejo dam on both stations are “Lightly polluted”, before and after the eruption of Mount Kelud, (d) main contributors to the water pollution on upstream station are total-P and nitrate. On middle station, the main contributors are total-P, silica, and nitrate, (e) Trophic status index of Selorejo dam is “hypereutrophic” for chlorophyll a, (f) pollution load capacity of Selorejo dam for total-P is 12.072, 58 kg P/year and has to be increased 69, 61% to 39.722, 33 kg P/year to lower trophic status index to “Oligotrophic”.Keywords: Water quality, water quality status, trophic status index, load capacity index, pollution index
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1985.109 KB)

Abstract

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.
Studi Penentuan Status Mutu Air Di Sungai Surabaya Untuk Keperluan Bahan Baku Air Minum Citri Priyono, Thesa Septine; Yuliani, Emma; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 1 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1692.466 KB)

Abstract

The water of Surabaya River is the raw material of drinking water and one of water supply source for PDAM Surabaya. Over the last ten years pollution in Surabaya River is worsened. Pollution not only from domestic waste but also from existing industries around Surabaya River. This study aimed to determine the status of water quality in the Surabaya River. Determination water quality status in the Surabaya River conducted to closest monitoring station to the PDAM Waste Water Treatment Karangpilang. They are Cangkir Tambangan Monitoring Station, Bambe Tambangan Monitoring Stations, and Karangpilang Monitoring Station. The method used for the determination of water quality status are STORET and Pollution Index Method. Analysis of water quality status determination aims to determine the level of impurity in the nearest monitoring station. From the research it can be concluded, water quality status in Surabaya River is 49.44% heavily polluted by STORET for grade two. While 100% is being polluted by Pollution Index Method for grade two.Keywords: Water Quality Status, STORET, Pollution Index Method, Surabaya River
Analisa Status Mutu Air Dan Daya Tampung Beban Pencemaran Sungai Wanggu Kota Kendari Sahabuddin, Hartina; Harisuseno, Donny; Yuliani, Emma
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 (1475.413 KB)

Abstract

This study aims to determine the water quality in the Wanggu river of the upstream, midstream and downstream . Decrease quality of water in the Wanggu river each year has increased due to changes over the function in using land until occur of water pollution.The study was conducted in April and May 2013, the measurement of water quality in the River Wanggu there are 10 parameters in measuring the temperature , TDS , TSS , pH , BOD , COD , DO , Nitrate , Nitrite and Mn and also uses secondary data . Parameters TDS , TSS , COD and BOD are increasing every year. The status of water quality in the Wanggu river was Determined by using the method of STORET, Wanggu river has been heavily polluted and Pollution Index method had moderately polluted. For the calculation of Pollution Load Capacity in Wanggu river does not have the capacity anymore to increase the BOD parameters required water pollution control strategies. Wanggu river as a potential source of raw water can be used as a clean water source for the future of kendari city residentsKeywords: Water quality,, Methods STORET, Pollution Index Method, Pollution Load Capacity.
EFEKTIFITAS GROUNDSILL TERHADAP PENYEBARAN SEDIMEN SUNGAI GRINDULU KABUPATEN PACITAN Budi, Susilo; Dermawan, Very; Yuliani, Emma
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 (662.544 KB) | DOI: 10.21776/ub.jtp.2017.008.01.11

Abstract

ABSTRAK: Sungai Grindulu memiliki potensi bahan galian berupa pasir yang dimanfaatkan sebagai material pembangunan prasarana fisik. Penambangan pasir sungai menyebabkan penurunan dasar sungai yang mengakibatkan kerusakan infrastruktur umum. Salah satu upaya yang dilakukan untuk mengendalikan penurunan dasar sungai adalah pembangunan groundsill. Penelitian ini menganalisis penyebaran sedimen di sungai Grindulu sebelum dan sesudah pembangunan groundsill serta pengaruh penambangan pasir terhadap perubahan dasar sungai menggunakan bantuan perangkat lunak HEC-RAS 4.1.0. Hasil simulasi menunjukkan bahwa tanpa groundsill, dasar sungai mengalami degradasi rata-rata 0,602 m dan agradasi rata-rata 0,505 m. Dengan groundsill tanpa penambangan pasir, terjadi degradasi rata-rata 0,659 m dan agradasi rata-rata 0,483 m. Dengan groundsill dan penambangan pasir, terjadi degdarasi rata-rata 1,017 m dan agradasi rata-rata 0,627 m. Direkomendasikan lokasi penambangan baru dengan kapasitas produksi 65 m3/hari. Dalam periode 5 dan 10 tahun yang akan datang, simulasi angkutan sedimen berdasarkan rekomendasi lokasi dan kapasitas penambangan pasir baru menunjukkan bahwa terjadi degradasi  rata-rata 0,569 m dan 0,846 m. Sedangkan agradasi yang terjadi rata-rata sebesar 0,487 m dan 0,545 m. Kata kunci: sedimen, HEC-RAS, penambangan pasir, degradasi, agradasi ABSTRACT: Grindulu river has potential minerals of sand that used as material of physical infrastructure construction. River sand mining causes riverbed degradation that result damage of public infrastructure. One of the efforts made to control riverbed degradation is construction of groundsill. This study analyze sediment distribution in Grindulu river before and after groundsill construction and the effect of sand mining on riverbed changes using HEC-RAS 4.1.0 software. The simulation result shows that without groundsill, the average of riverbed degradation is 0.602 m and average of aggradation is 0.505 m. With groundsill and without sand mining, the average of riverbed degradation is 0.659 m and average of aggradation is 0,483 m. With groundsill and sand mining, the average of riverbed degdaration is 1,017 m and average of aggradation is 0.627 m. New site of sand mining recommended with production capacity of 65 m3/day. In the period of next 5 and 10 years, sediment transport simulations based on recommended location and capacity of new sand mining site show that the average of riverbed degradation is 0.569 m and 0.846 m. While the average of aggradation is 0.487 m and 0.545 m. Keywords: sediment, HEC-RAS, river sand mining, degradation, aggradation
PEMODELAN INTENSITAS HUJAN SEBAGAI FUNGSI DARI DURASI HUJAN DAN PROBABILITAS (Studi Kasus: Wilayah DAS Lesti, Malang, Jawa Timur) sugiarti, anggun; Harisuseno, Donny; Yuliani, Emma
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 2 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1753.538 KB)

Abstract

Abstrak: Mengenal dan memformulasi pola hujan bermanfaat dalam upayapengendalian dampak negatif akibat hujan.Intensitashujandanprobabilitashujanadalah variabel penting dalam perencanaan teknis. Penelitianinibertujuanuntukmemperolehsuatu model intensitashujanyangdapatmemprediksiintensitashujan padadurasilaindanprobabilitas secara akurat.Persamaantersebutdibandingkandenganmetode Talbot, Sherman,danIshiguro.Untuk memperkuat hasil pemodelan dilakukan uji verifikasi melalui perbandingan debit dari intensitas hujan pemodelan dengan debit pengamatan di Tawangrejeni. Hasilpersamaanmodelintensitashujantergolongbaikjika dibandingkandenganhasilpengamatan perdurasi.Haliniditunjukkandengannilai koefisien korelasi>0.831dankoefisienNash-Sutcliffe>99.Persamaan akhir pola intensitas hujan hasil pemodelanadalahIt.p=15,92e-0,025p+4,4312e-0,012p.(1/t). Prediksi intensitas hujan (It.p) pada sembarang durasi (t;jam) dan probabilitas hujan (p;%) dapat dilakukan dengan menggunakan persamaan ini.Kata kunci: Pemodelan, IntensitasHujan, Durasi, Probabilitas Abstract: Recognizing and formulating the rainfall intensity are very helpful to control the negative effects of rain. Rainfall intensity and rainfall probability are important for technical planning. This research aims to find a rainfall intensity model which can accurately predicts both of rainfall intensity on other duration and the probability.Further,this formula compared to the rainfall intensity formula based onTalbot, Sherman, and Ishiguromethods.The verification tests through comparison between the discharge of rainfall intensity model and observation discharge in Tawangrejeni were used to affirmthemodel. The result of rainfall intensity model is quite good compared to periodic observationof rainfall intensity.This is indicated by the correlation coefficient (>0.831) and Nash-Sutcliffe coefficient (>99).The final equation of rainfall intensity modelis It.p=15,922e-0,025p+4,4312e-0,012p.(1/t).Rainfall Prediction (It.p) on any duration (t;h) and rainfall probability (p;%)can be done by usingthis equation. Keywords: Modeling, Rainfall intensity, duration, probability
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
STUDI EFISIENSI METODE ZIG-ZAG AERATOR VERTIKAL MENGGUNAKAN FILTER SPONGE UNTUK MEREDUKSI NILAI KEKERUHAN DAN MENAIKKAN NILAI DO Siregar, Yoan Nathalia; Prayogo, Tri Budi; Yuliani, Emma
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 2 (2019)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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

Abstract

ABSTRAK: Air buangan limbah domestik dihasilkan dari kegiatan rumah tangga yang dilakukan oleh masyarakat setiap harinya secara rutin. Limbah domestik akan menimbulkan permasalahan bagi lingkungan dan masyarakat bila tidak dikelola dengan benar. Metode Rancangan Acak Lengkap (RAL) digunakan dengan 3 kali pengulangan pada faktorial 2x3x2. Faktor pertama adalah debit, yaitu menggunakan 0,07 liter/detik dan 0,02 liter/detik. Faktor kedua adalah kemiringan plat, yaitu 0°, 5°, dan 10°. Faktor ketiga yaitu jumlah plat, yaitu 6 buah dan 4 buah. Penelitian ini menggunakan limbah domestik buatan dalam pengolahannya, serta menggunakan Zig-Zag Aerator Vertikal dengan filtrasi sponge. Penelitian ini dilakukan untuk mengetahui pengaruh dan efisiensi kemiringan plat, debit, dan jumlah plat pada pengolahan limbah domestik buatan menggunakan Zig-Zag Aerator Vertikal dengan filtrasi sponge terhadap parameter kekeruhan, DO, dan pH. Dari hasil penelitian, didapatkan efisiensi untuk DO 22% - 68%, kekeruhan memiliki efisiensi 50% - 68%, dan pH hanya 1% - 3%. Dari hasil penelitian, dapat disimpulkan untuk pengolahan menggunakan Zig-Zag Aerator Vertikal menggunakan debit 0,02 liter/detik, kemiringan plat 0°, dan jumlah plat 6 buah akan memberikan hasil yang maksimal.ABSTRACT: Domestic waste water is generated from household activities carried out by the community on a daily basis. Domestic waste will cause problems for the environment and society if it is not managed properly. Complete Random Design Method (CRD) was used with 3 repetitions in factorial 2x3x2. The first factor is debit, which uses 0.07 liters / second and 0.02 liters / second. The second factor is the slope of the plate, which is 0 °, 5 °, and 10 °. The third factor is the number of plates, which is 6 pieces and 4 pieces. This research uses artificial domestic waste in its processing, and uses Vertical Zig-Zag Aerators with sponge filtration. This research was conducted to determine the effect and efficiency of plate, discharge, and plate number on artificial domestic waste processing using Zig-Zag Vertical Aerator with sponge filtration on turbidity, DO, and pH parameters. From the results of the study, obtained efficiency for DO 22% - 68%, turbidity has an efficiency of 50% - 68%, and pH is only 1% - 3%. From the results of the study, it can be concluded for processing using Zig-Zag Vertical Aerator using a discharge of 0.02 liters / second, slope of the plate 0 °, and the number of plates of 6 pieces will provide maximum results.
STUDI EFISIENSI FILTER PENJERNIH AIR MENGGUNAKAN KOMBINASI BAHAN BATU SCORIA DAN BATU APUNG DENGAN ZEOLIT DAN KERIKIL UNTUK MENGURANGI POLUTAN PADA LIMBAH SINTETIS (Cr dan Pb) Fahmi, Moh. Aziizun; Yuliani, Emma; Prayogo, Tri Budi
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 2 (2019)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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

Abstract

ABSTRAK: Kandungan logam yang terdapat pada limbah industri sangat berbahaya, contohnya kandungan Cr (Kromium) dan Pb (Timbal). Mahalnya instalasi pengolahan limbah menyebabkan pengolahan limbah selama ini dirasa kurang efisien. Permasalahan ini dapat diatasi dengan filter penjernih air sederhana menggunakan kombinasi bahan batu scoria dan batu apung dengan zeolit dan kerikil. Filter ini menggunakan empat macam variasi bahan filter, yakni batu scoria kasar + batu scoria halus + kerikil, batu apung kasar + batu apung halus + kerikil, batu scoria kasar + batu scoria halus + zeolit + kerikil dan batu apung kasar + batu apung halus + zeolit + kerikil. Kemudian terdapat dua variasi waktu, yakni 18 jam dan 36 jam. Parameter yang diuji adalah pH, suhu, kadar Cr, dan kadar Pb pada limbah sintetis. Hasil percobaan menunjukkan bahwa penggunaan batu apung + zeolit pada variasi bahan filter menghasilkan nilai pH yang terbaik, serta mengurangi kadar Cr dan Pb paling banyak. Untuk suhu, penggunaan batu apung menghasilkan nilai suhu yang paling mendekati nilai suhu ruangan. Sedangkan untuk variasi waktu, variasi waktu 36 jam memberikan hasil yang paling baik untuk seluruh parameter uji.   Kata Kunci: limbah sintetis, pH, suhu, Cr, Pb, variasi bahan filter, variasi waktu   ABSTRACT: The metal content found in industrial waste is very dangerous, for example Cr (Chromium) and Pb (Plumbum). The high cost of a waste treatment has caused waste processing to be considered inefficient. This problem can be solved by a simple water purifier filter using a combination of scoria stone and pumice stone with zeolite and gravel. This filter used four different types of filter material, the variations were coarse scoria stone + fine scoria stone + gravel, coarse pumice stone + fine pumice stone + gravel, coarse scoria stone + fine scoria stone + zeolite + gravel and coarse pumice stone + fine pumice stone + zeolite + gravel. Then there are two time variations, 18 hours and 36 hours. The parameters tested were pH, temperature, Cr content, and Pb content in synthetic sewage. The experimental results showed that pumice stone + zeolite in a variations of filter material produced the best pH value, as well as reduced the content of Cr and Pb at most. For temperature, pumice stone produced the best value. For time variations, time variation of 36 hours gave the best results for all parameters. Keywords: synthetic sewage, pH, temperature, Cr, Pb, filter material variations, time variations
Studi Analisa Perenan Biosementasi pada Butiran Batu Apung dan Scoria untuk Meningkatkan Kuat Gesernya Allaudin, Dhiya Ulhaq; Hendrawan, Andre Primantyo; Yuliani, Emma
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 1 (2019)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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

Abstract

ABSTRAK: Material batu apung dan scoria adalah salah satu material alternatif yang telah banyak digunakan dalam bidang geoteknik. Material batu apung dan scoria dapat diperoleh di area Kali Putih, Gunung Kelud, Kabupaten Blitar, Jawa Timur dengan jumlah yang melimpah dan murah. Untuk mengatasi daya dukung yang rendah pada batu apung dan scoria maka diperlukan proses biosementasi dengan menggunakan mikrooganisme non-patogenik untuk meningkatkan kekuatan dan kekakuan dengan meggunakan aktivitas mikroorganisme. Dalam penelitian ini, material uji dimodelkan menjadi 4 jenis variasi yaitu variasi material yang terdiri dari batu apung dan scoria, variasi gradasi yang berupa fine sand dan coarse sand, variasi kerapatan relatif yang terdiri dari Dr 50% dan 70%, dan variasi bakteri yang terdiri dari Lactobacillus sakei dan Bacillus subtilis. Hasil pengujian karakteristik fisik, didapatkan bahwa material batu apung dan scoria yang berasal dari proses crushing secara USCS tergolong jenis tanah pasir bersih dengan gradasi baik (SW), dan secara AASTHO tergolong batu pecah, kerikil dan pasir (A-1b). Berdasarkan hasil pengujian kuat geser langsung didapatkan sampel material scoria dan apung dengan gradasi coarse sand dengan inokulasi bakteri Lactobacillus sakei memiliki nilai sudut geser terbesar dengan nilai sekitar 51,22º – 56,74º. Sedangkan prosentase peningkatan terhadap material apung dan scoria setelah proses biosementasi yang dimana peningkatan sudut geser terbesar terjadi pada sampel dengan inokulasi bakteri Lactobacillus sakei dengan gradasi fine sand yang dimana memiliki prosentase kenaikan sekitar 32,574% - 32,263% terhadap sampel natural sebagai kontrol. Peningkatan sudut geser terbesar rata-rata terjadi pada gradasi fine sand pada tiap sampelnya. Maka material dengan gradasi fine sand dengan inokulasi Lactobacillus sakei dengan kerapatan relatif (Dr) 70% memiliki kuat geser terbesar dan dianggap sebagai variasi dengan hasil yang paling baik untuk dikedua material apung dan scoria.ABSTRACT Pumice and scoria material is an alternative material that has been widely used in the geotechnical engineering. Pumice and scoria material can be obtained in the Kali Putih area, Kelud Mountain, Blitar Regency, East Java in abundant amount and inexpensive. To overcome the low strenght of pumice and scoria, it is necessary to process biocementation by using non-pathogenic microoganism to increase their strength and stiffness by using microorganism activity. In this study, the test material is modeled into 4 types of variation, namely variations in material consisting of pumice and scoria, gradation variations in the form of fine sand and coarse sand, relative density variations consisting of Dr 50% and 70%, and bacterial variations consisting from Lactobacillus sakei and Bacillus subtilis. The results of physical characteristics testing showed that the material of pumice and scoria from crushing process was classified by USCS as a type of clean sand soil with a good gradation (SW), and in AASTHO classified as broken stones, gravel and sand (A-1b). Based on the results of direct shear strength testing, the percentage of increase in pumice and scoria material with gradation of coarse sand with Lactobacillus sakei bacteria inoculation has the largest shear angle value with a value of about 51.22º - 56.74º. While the percentage increase in pumice and scoria material after the biosementation process where the largest increase in shear strenght occurred in samples with inoculation of Lactobacillus sakei bacteria with fine sand gradation which has a percentage increase of about 32.574% - 32.263% of natural samples as control. The largest increase in shear strenght on average occurs in the fine sand gradation in each sample. So the material with a fine sand gradation with Lactobacillus sakei inoculation with a relative density (70%) has the greatest shear strength and is considered as the variation with the best results for both pumice and scoria material. 
Co-Authors Adrianu, M Nafian Ahmad, Dicky Aliyah, Firda Samaniyatul Allaudin, Dhiya Ulhaq Anak Agung Gede Sugianthara Andawanti, Ussy Andre Primantyo Hendrawan Anggraeni, Voni anggun sugiarti, anggun Aprilia, Anindi aqil, dea rozan Ardia Trianita, Dinda Arief, Amalia Mardhatillah Aristananda, Wibi Idho Aulia Shinta Balqis Awaludin, Muhammad Fajar Ayu Pratama Putri, Ayu Pratama Azhar, Rifqi Fajar Azzhura, Fahrunnisa Bagas Kusdiyatno Wardana Budi, Susilo Cahaya Santoso Samosir, Cahaya Santoso cristina Dwi, cristina Dea Rozan Aqil Pradana Desilawati, Devarolla Donny Harisuseno Ery Suhartanto Evi Nur Cahya Fahmi, Moh. Aziizun Fanny Tendean, Fanny Fauzia Sonia, Fauzia Firdaus, Novinda Faizah Gunawan, Alif Ramadhani Medisia Putri hari siswoyo Haromain, Safira Anisah Harso, Reni Meidha Hartina Sahabuddin Hisbulloh, Robiq Hutama, Ageng Rizky Jasmine, Hersaninda Nerissa Kamila, Orin Syakira Laksono Trisnantoro Linda Prasetyorini Lubis, Rizki Fajar Rani M. Bisri Martius, Alifa Fajriani Miasari, Putu Kalila Shevanya Moh. Sholichin Mohammad Bisri Nelvina, Angie Pambudi, Arya Danang Pitojo Tri Juwono Prasetyo, Erinna Melina Prayogo , Tri Budi Primantyo H, Andre Putri, Anthea Alviona Putri, Aulia Dinniar Rahmah Dara Lufira Rares, Johan Peter Rini Wahyu Sayekti Riyanto Haribowo Rizki Tri Utami Rubiantoro, Prasetyo Runi Asmaranto Sholichin, Moh Siregar, Yoan Nathalia Siswoyo, Hari Sudjatmiko, Henny Suhardjono Suhardjono Sumule, Ahimsa Rama Pagayang Suwanto Marsudi Thesa Septine Citri Priyono Tri Budi Prayogo, Tri Budi Tsuyoshi Imai, Tsuyoshi Ussy Andawayanti Very Dermawan Wahyu Nafier A. Wahyu Nurrasyidah, Agista Wardani, Annida Shafira Wicaksono, Audy Arkanta Widandi Soetopo Yasnuar Muntaha