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PENINGKATKAN KUALITAS MINYAK GORENG CURAH MENGGUNAKAN ADSORBEN LEMPUNG DESA GEMA TERAKTIVASI Sophia, Halida; Muchtar, Akmal; Sari, Martha
Sistem Informasi Vol 5 No 1 (2014): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Telah dilakukan penelitian tentang peningkatan mutu minyak goreng curah menggunakan adsorben lempung asal Desa Gema, Kabupaten Kampar, Provinsi Riau. Penelitian ini meliputi: (1) Pembuatan adsorben dengan aktivasi menggunakan H2SO4 0,5 M, selama 3 jam dengan kecepatan pengadukan 500 rpm (2) Pemurnian minyak goreng secara adsorbsi dan mengetahui mutu minyak curah setelah adsorbsi berupa bilangan peroksida, bilangan asam, kandungan air, warna. Proses adsorpsi diamati dengan variasi massa (1, 3, 5, dan 7 gram) dengan waktu kontak 30 menit. Semua nilai yang diperoleh dibandingkan dengan SNI 3741:2013. Hasil yang didapat menunjukkan lempung teraktivasi H2SO4 mampu menurunkan bilangan peroksida, bilangan asam, dan kandungan air secara maksimal masing-masing sebesar 31,02%, 36,36%, dan 38,89% dengan 7 gram lempung teraktivasi.

PENENTUAN TINGKAT KEMATANGAN TERMAL MINYAK MENTAH PENDALIAN IV KOTO, ROKAN HULU BERDASARKAN PARAMETER INDEKS METILPHENANTREN Ilham, Rendi; Tamboesai, Emrizal M.; Sophia, Halida
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Determination of thermal maturity level aims to determine the feasibility ofÂ petroleum wells to be exploited because there are manyÂ new wells of petroleum unexploited in the Riau area,Â especially Pendalian oil field.Â Â Determination ofÂ Â Â thermal maturityÂ level Pendalian oil fieldwasÂ done by taking three samples from different wells. The samples were characterized using gas chromatography (GC) for a saturated fractionsÂ and using gas chromatography-mass spectroscopy (GC-MS) for aromaticÂ fractions.In this study the ratio of isoprenoid and n-alkanewereÂ used as initial parameters in determining the thermal maturity andÂ reinforced with methy lphenatrenÂ index.Metilphenantren index wereÂ usedÂ of MPI-3 and metilphenantren ratio (MPR).The results of the ratio of n-alkaneÂ and isoprenoid indicatedÂ that oil of Pendalian oil field wasÂ mature.This was also confirmed by methylphenantren index that hadvalues of MPI-3 0.741; 0.748; 0.731,Â and values of MPR 0.829;Â 0.814; 0.831 indicatedÂ that Pendalian oil fieldÂ wasÂ matureÂ and classified into a low maturity level.

PEMANFAATAN LEMPUNG DESA GEMA TERAKTIVASI H2SO4 UNTUK PENINGKATAN MUTU MINYAK GORENG CURAH Simanjuntak, Martha Sari; Muchtar, Akmal; Sophia, Halida
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Clay from Gema Village, Kampar Regency, Riau Province has been applied as an adsorbent. The increase of clayâ€™s adsortive capacity can be done by modification. This study was aimed to use the activated clay to improve the quality of bulk cooking oil. The adsorbent preparation was began with activation process by using 0,5 M H2SO4, for 3 hours, and stirring rate 500 rpm. Activated clay showed the increase the intensity of quartz and montmorillonit, and accompanied by the loss of muscovite and kaolinite. The parameters that were used in this study were peroxide value, acid value, water content, odor, and colour. Adsorption process was observed in 7 gram activated clay with various contact time (30, 60, 90, and 120 minutes), the results then compared with SNI 3741:2013. The obtained result showed that the activated clay 0,5 M H2SO4 was able to decrease the acid value, and water content, respectively 54,55%, 48,75% with 120 minute and 7 gram weight of activated clay, it was also able to decrease peroxide value 39,64% with 60 minute and 7 gram weight of activated clay, and the color of bulk cooking oil was more clear, but itâ€™s smells like clay.

ANALISIS TINGKAT AKURASI PROSES DEPOSISI PADA PENUMBUHAN LOGAM TIPIS DENGAN METODE ELEKTROKIMIA (STUDI: DENSITAS ARUS DAN WAKTU PENUMBUHAN) Rahmi Wirman; Alfian; Halida Sophia; Adia Putra Wirman
JOURNAL ONLINE OF PHYSICS Vol. 6 No. 2 (2021): JOP (Journal Online of Physics) Vol 6 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v6i2.12922

Telah dilakukan analisis tingkat akurasi proses penumbuhan logam tipis menggunakan metode deposisi elektrokimia. Instrumen penumbuhan logam tipis yang digunakan adalah sel elektrokimia, larutan elektrolit, dan sumber arus listrik Direct Current (DC). Variabel yang dianalisis adalah variasi densitas arus dan waktu yang diberikan pada sel elektrokimia dalam proses penumbuhan. Sampel logam tipis yang ditumbuhkan pada eksperimen ini adalah logam tipis Nikel Kobalt (NiCo). Sampel NiCo ditumbuhkan dengan 13 variasi densitas arus dan waktu penumbuhan. Hasil analisis menunjukkan bahwa penumbuhan logam tipis NiCo memiliki tingkat akurasi yang baik pada pemberian densitas arus sebesar 20 sampai 450 A/m2, dengan nilai persen akurasinya sebesar 97,04%. Sampel NiCo yang ditumbuhkan dengan densitas arus di atas 500 A/m2 menghasilkan produk yang tidak baik, pada sampel terbentuk pengotor karbon dan terjadi proses oksidasi.

PENENTUAN TINGKAT KEMATANGAN TERMAL MINYAK MENTAH ( CRUDE OIL ) DARI LADANG MINYAK LIRIK Kab. INDRAGIRI HULU, RIAU Cindya Afrina; Emrizal Mahidin Tamboesai; Halida Sophia
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Lirik oil field is one of the oil-producing layers that is located in Indragiri Hulu Riau province, situated at ± 140 km South of the city of Pekanbaru with the area of ± 12 km2. There is no researchon Lirik oil fields, at on the maturity level of petroleum using the methylphenantrene index parameters on oil wells, therefore this study aimed to determine the level of thermal maturity of Lirik oil. Determination of thermal maturity was done by taking two samples from two different wells of Lirik oil field, Riau. In this study the thermal maturity determination was done using two parameters, the parameters of isoprenoid and n-alkanes in saturated fractions and characterized using gas chromatography (GC-FID), this parameter was the initial parameter in the determination of thermal maturity. Determination of the level of thermal maturity of petroleum enhanced with Metilphenantrene index parameter on aromat fractions were characterized using gas chromatography -mass spectroscopy (GC-MS). Determination of thermal maturity level using the parameter index was determined by looking at the value Metilphenantren MPI-3 and MPR (Methylphenantrene ratio). The results of the determination of thermal maturity at saturated fraction using the ratio of n-alkanes and isoprenoid indicated that oil from Lirik oil wells, Riau was already ripen. This was confirmed by the parameters that have Metilphenantrene index values ranged MPI-3 0709; MPR 0755 and 0699 ranges; 0.756. The values of these parameters Metilphenantren index showed that crude oil from two wells Lirik, Riau has a low maturity level.

PEMANFAATAN LIMBAH AMPAS TEBU SEBAGAI ADSORBEN UNTUK PENINGKATAN KUALITAS AIR GAMBUT Patricia Lucky Yoseva; Akmal Muchtar; Halida Sophia
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Sugarcane bagasse contains various biomass compounds, like cellulose and lignin,which has the potential to be converted into a source of carbon for the adsorption process. This study was aimed to use carbonized bagasse powder as an adsorbent toincrease quality of peat water. Bagasse powder was carbonizied at 300 o C for 2,5 hoursand sieved using a sieve storied 100 and 200 mesh. Carbonizied bagasse powder wascharacterize in terms of moisture content, ash content, I 2 adsorption capacity, surfacearea and functional groups determination using FTIR. Adsorption process was observedby mass variations (0,5; 1; 1, 5; 2 grams) then at the mass maximum (2 gram) wascontinued by contact time variations (30, 60, 90, 120 minutes). Parameters of this studywere analyzed such as odor, colour, pH, turbidity, TDS, TSS, metal content of Fe andhumic acid in peat water. All of the results were compared to PERMENKES RI “AboutRequirement and Water Quality Control” No.416/MENKES/PER/IX/1990. The analysisresult showed that variation of contact time does not affect all parameters that have beenanalyzed. After compared to PERMENKES RI only odor, turbidity, TDS, content of Fe(2 grams; 120 minutes) fulfilled the standar, respectively (18,2 NTU; 54,15%),(98 mg/L; 52,65%), and (0,128 mg/L; 52,65%).

PEMANFAATAN LEMPUNG DESA GEMA TERAKTIVASI H 2SO 4 UNTUK PENINGKATAN KUALITAS AIR GAMBUT Vina Rotua; Akmal Muchtar; Halida Sophia
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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The clay found in Gema Village, Kampar Regency, Riau Province contains many minerals, such as montmorillonite but it has a low surface area so need to do activation. The activator used in this study was H2SO4 0,5 M solution. The adsorbent was characterized by XRD, SEM and FT-IR. Activated Gema clay (LGT) and unactivated Gema clay (LGTT) were applied for purification a peat water using batch method with the variation of time 30, 60, 90 and 120 minute and several of water parameters were analized, such as odor, colour, pH, turbidity, TSS, TDS, concentrations of iron (Fe) and efficiency of decreasing of colour. All the results were compared to PERMENKES RI No. 416/MENKES/PER/IX/1990 “Tentang Syarat-Syarat Dan Pengawasan Kualitas Air”. Activated clay showed the refined morfology and increased which surface area from 10,5813 m2g-1 up to 15,3337 m2g-1. The result showed that the adsorption using activated Gema clay is better than unactivated Gema clay that is showed from removal efficiency percentage for all parameters. The longer of adsorption time, that was so many adsorbate that was adsorbed by adsorbent. The maximum time of adsorption was 120 minute. The removal efficiency percentage for pH, turbidity, TSS, TDS and efficiency of decreasing of colour were 10,03%, 30,98%, 58,59%, 59,28% and 30,84%, respectively for activated Gema clay (LGT). The statistic result showed that the variation of adsorption time affect all parameters that was analyzed based on the analysis of variance (ANOVA) and Duncan’s test at α = 0,05.

PENINGKATKAN KUALITAS MINYAK GORENG CURAH MENGGUNAKAN ADSORBEN LEMPUNG DESA GEMA TERAKTIVASI Halida Sophia; Akmal Muchtar; Martha Sari
Sistem Informasi Vol 5 No 1 (2014): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v5i1.395

Telah dilakukan penelitian tentang peningkatan mutu minyak goreng curah menggunakan adsorben lempung asal Desa Gema, Kabupaten Kampar, Provinsi Riau. Penelitian ini meliputi: (1) Pembuatan adsorben dengan aktivasi menggunakan H2SO4 0,5 M, selama 3 jam dengan kecepatan pengadukan 500 rpm (2) Pemurnian minyak goreng secara adsorbsi dan mengetahui mutu minyak curah setelah adsorbsi berupa bilangan peroksida, bilangan asam, kandungan air, warna. Proses adsorpsi diamati dengan variasi massa (1, 3, 5, dan 7 gram) dengan waktu kontak 30 menit. Semua nilai yang diperoleh dibandingkan dengan SNI 3741:2013. Hasil yang didapat menunjukkan lempung teraktivasi H2SO4 mampu menurunkan bilangan peroksida, bilangan asam, dan kandungan air secara maksimal masing-masing sebesar 31,02%, 36,36%, dan 38,89% dengan 7 gram lempung teraktivasi.

PEMODELAN STRUKTUR KOMPLEKS TEMBAGA(II)-FENANTROLIN MENGGUNAKAN SOFTWARE GAMESS Leo Saputra; Neysa Syafira; Tika Eka Citra; Halida Sophia
Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Vol 3, No 2 (2020): (November) Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia
Publisher : Universitas Islam Kalimantan MAB Banjarmasin

Perhitungan komputasi berbasis website yang tidak berbayar dan dapat diakses oleh siapapun akan berperan sangat penting dalam pembelajaran kimia komputasi bagi pemula. Pada penelitian ini, kami telah melakukan optimasi struktur kompleks Cu(II)-fenantrolin (Cu(II)-phe2) menggunakan perangkat lunak GAMESS pada kluster komputer San Diego Supercomputing Center (SDSC) melalui www.chemcompute.org. Hasil perhitungan komputasi menunjukkan bahwa kedua ligand fenantrolin tidak berada pada satu bidang datar, tetapi membentuk sudut 35,4º.

Penerapan teknologi biopori vertikal dengan memanfaatkan larva Black Soldier Fly sebagai pengurai Andi Dahliaty; Halida Sophia; Yuana Nurulita; Sri Helianty
Unri Conference Series: Community Engagement Vol 2 (2020): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.2.207-214

The biopore infiltration hole is a hole with a diameter of 10 cm - 30 cm with a depth of 30 cm - 100 cm which is added with organic waste and will help soil biota form a biopore hole so that it can trap the air flowing around it. Black Soldier Fly larvae are able to accelerate composting and ordering of pores in the biopore infiltration holes. Perumahan Putri Indah Kulim RT 02 RW 12 Kelurahan Mentangor rarely finds open land semisization and house widening which causes a reduction in the surface of ground air infiltration so that during the rainy season puddles easily occur and during the dry season it reduces groundwater reserves. This activity aims to provide knowledge and insight into the community about biopore infiltration holes by utilizing Black Soldier Fly larvae and inviting the public to apply this technology. This service activity begins with the socialization of the biopore infiltration holes, then introduces the tools and materials as well as direct practice in the field. The results of this activity had a positive influence on the community and many community members who wanted to apply the biopore infiltration hole technology using Black Soldier Fly larvae. This is the first step in creating a clean and healthy environment, especially in Putri Indah Kulim Housing RT 02 RW 12 Mentangor Village.

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