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All Journal Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi Cakrawala Pendidikan Jurnal Penelitian dan Evaluasi Pendidikan Reaktor IPTEK The Journal of Engineering Sains Tanah Jurnal Karya Pendidikan Matematika Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan JURNAL EVALUASI PENDIDIKAN Dinamika Pendidikan Jurnal Promosi Pendidikan Ekonomi Seminar Nasional Teknik Kimia Kejuangan AGRIVITA, Journal of Agricultural Science BIOMA Jurnal Mirai Management Equilibrium: Jurnal Ilmiah Ekonomi, Manajemen dan Akuntansi Proceeding of International Conference on Art, Language, and Culture Jurnal Manajemen Pendidikan Penelitian Kualitatif Jurnal JUMPED (Jurnal Manajemen Pendidikan) Manajer Pendidikan: Jurnal Ilmiah Manajemen Pendidikan Program Pascasarjana Limits: Journal of Mathematics and Its Applications Jurnal Purifikasi ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA EQIEN - JURNAL EKONOMI DAN BISNIS Social, Humanities, and Educational Studies (SHEs): Conference Series JURNAL TEKNIK Indonesian Journal of Clinical Pathology and Medical Laboratory (IJCPML) PRIMA: Journal of Community Empowering and Services Jurnal Pendidikan dan Kewirausahaan Motor Bakar : Jurnal Teknik Mesin Dinamika Kerajinan dan Batik : MAJALAH ILMIAH Jurnal Ilmiah ASET Jurnal Ilmiah Agribios Jurnal Ilmiah Wahana Pendidikan Kalam Cendekia: Jurnal Ilmiah Kependidikan Proceeding Biology Education Conference EKONOMIKA45 Jurnal Ilmu Pendidikan (SOKO GURU) PEKBIS Bestari: Jurnal Pendidikan dan Kebudayaan The International Conference on Education, Social Sciences and Technology (ICESST) Jurnal Pengabdian Ilmu Kesehatan Journal of Research and Development on Public Policy SEUNEUBOK LADA: Jurnal ilmu-ilmu Sejarah, Sosial, Budaya dan Kependidikan Ta'rim: Jurnal Pendidikan dan Anak Usia Dini Jurnal Insan Pendidikan dan Sosial Humaniora Jurnal Hukum dan Sosial Politik Jurnal Kualita Pendidikan Khirani: Jurnal Pendidikan Anak Usia Dini Jurnal Kearsipan Compromise Journal : Community Proffesional Pendekar: Jurnal Pendidikan Berkarakter Submit : Jurnal Ilmiah Teknologi Informasi dan Sains Seurune : Jurnal Psikologi Unsyiah International Journal of Law and Society IJOT Jurnal Historica Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis
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MACAM DAN DOSIS PUPUK ORGANIK TERHADAP HASIL DAN KADAR ANTOSIANIN KELOPAK BUNGA ROSELA (Hibiscus sabdariffa) Sumarno Sumarno
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 7, No 1 (2010)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v7i1.49

Abstract

Title: Kinds and doses of organic fertilizers on the yield and anthocyanin content of Roselle calyx (Hibiscus sabdariffa). A Roselle petal has fresh taste and attractive red color. In addition to containing high vitamin C which also contains the pigment anthocyanin, can be processed into several products that have high economic value. Drug efficacy from Rosella interest include lowering high blood pressure, lower levels of fat and cholesterol, blood circulation, stop cough and facilitate defecation. Increasing crop productivity can be done by providing additional nutrients through the selection of appropriate types of fertilizer, effective and efficient. Vermicompost and fermented organic fertilizer, besides containing the elements necessary macro plants also contains elements such as micro-and growth hormone auxin, cytokinin and gibberellins. The research aims to find out kind of organic fertilizer and the correct dosage to improve results rosella flower petals with high anthocyanin content. Research was done in Jumantono Village, Karanganyar. Is a field trial, RAKL nested with treatment: Various Organic Fertilizers: Bokhasi, Casting, and compost. Dose of fertilizer each: 3; 6; 9 tons / ha. Conclusion, vermi fertilizer to increase growth and yield of Roselle calyx higher compared with fermented manure and compost, vermi fertilizer 9 t / ha is able to provide the highest dry weight of petals compared with the dose and under control. While fertilizer fermented 6 t / ha have been able to increase yields and high dose up to 9 t / ha increase in the result does not mean; dose of compost and fermented which gives a high anthocyanin content is 9 t / ha, while the dose of fertilizer Vermicompost 6 t / ha have been able to provide a high anthocyanin content and increased the dose to 9 t / ha increment is not significant. Keywords: anthocyanin, Hibiscus sabdariffa, organic fertilizer, Vermicompost
INOKULASI JAMUR PENGOKSIDASI BELERANG PADA PUPUK FOSFAT ALAM UNTUK MENINGKATKAN FOSFAT DAN SULFAT TERSEDIA BAGI TANAMAN Sumarno Sumarno; Hery Widijanto; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 5, No 2 (2008)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v5i2.72

Abstract

Title : The Inoculation of Sulfur Oxidizing Fungi on Phosphate Rocks Fertilizer  to Increase Their Available Phosphate and Sulfate. Phosphate rocks as an alternative sources of P fertilizer are cheaper than SP-36. The main problem was their low of total and available P that must be increased to make them more effective source of P for plants. Inoculate them with S oxidizing fungi will increase their available-P. The research aim was to study the potency of two S oxidizing fungi Aspergillus japonicus and Penicillium nalgiovensis to increase available-P of phosphate rocks. Experimental research done at the Lab. of Soil Biology and Lab. of Soil Chemistry and Fertility, Department of Soil Science, Faculty of Agriculture, UNS, Surakarta, at March – Mei 2008. The experiment arranged in completely randomized design with four factors i.e. the origin of elemental sulphur (from G. Welirang, East Java and from USA), the origin of phosphate rocks (Christmas Island, Ciamis and Madura), kind of inoculums fungi (A. japonicus and P. nalgiovensis) and inoculums densities (0; 106 and 107 spore/g of phosphate rock). Each treatment combinations were replicated three times. Fifty grams mixture of phosphate rocks, cassava solid waste, tapioca and rice bran was poured in 250 ml Erlenmeyer, sterilized with autoclave at 121 oC for 30 minutes, three times alternately in 5 days, then inoculated with fungus spores and incubated at field capacity in room temperature for 3 months. Samples were taken at 1, 2 and 3 months after incubation time for analysis of water soluble-P, soluble sulphate, pH and total fungus. Data analyzed statistically with F test and Duncan Multiple Range Test at 5% of level significance. The result show that the two of S oxidizing fungi Aspergillus japonicus and Penicillium nalgiovensis were be able to increases available-P of phosphate rocks, as well as soluble sulphate more than 200 % of control treatment. Penicillium nalgiovensis was more effective than Aspergillus japonicus. As P sources, phosphate rock from Christmas Island was better than from Ciamis and Madura, while elemental S imported from USA was better than local So from G. Welirang. The increase of inoculums densities and length of incubation times increase soluble P and sulphate. Keyword: phosphate rocks, S oxidizing fungi, soluble P and sulphate
STUDI BEBERAPA SIFAT FISIKA DAN KIMIA TANAH PADA BERBAGAI KOMPOSISI TEGAKAN TANAMAN DI SUB DAS SOLO HULU Sisca Winda Kumalasari; Jauhari Syamsiyah; Sumarno Sumarno
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 8, No 2 (2011)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v8i2.7

Abstract

Title : The Study of Soil Physics and Chemical Character on Various Straightened Composition of Crop on Sub DAS Solo Hulu. This research  was conducted  in Sub DAS Solo Hulu area from October  2006 – February 2007. The aim of this research  was to study the effect of various  straightened  composition  of crop  to  soil  physics  and  chemical  properties.  The  change  will  be  seen  when  the  available vegetation  was more dominant  than vegetation  on the same area. This research used variable approach by survey in spacious and is supported by analysis in laboratory. T‐test and Correlation test was used in this research. The result of this research showed that according  to vegetation survey, there was get six straightened composition of crop. The most of straightened composition of crop was predominated  by Jati (Tectona grandis L.). Straightened  composition  of crop which predominated by Jati (Tectona grandis L.) giving effect of very real to some soil physics (soil pore, soil aggregate,  field capacity) and chemical properties  (pH H2O, pH KCl, organic matter, cation exchangeable  capacity, total N, available P, available K and basalt spacing) at this same of soil type (Entisols  and Alfisols).  The various  straightened  composition  of crop to effect soil physics and  chemical  properties  through  organic  materials  which  yielded  by  litter  material  and  crop activity of root. Various straightened composition of crop was predominated  by annual crop will yield   as   litter   material   which   is   more   compared   to   with   straightened   composition   of predominated by season crop. Because annual crop have longer life cycle from at season crop so that  can  render  as  litter  material  as  continually.  Organic  materials  decomposition  will  yield organic  acids  as one of the source  of organic  materials  of ground.  While  activity  of root will render  organic  materials  in  ground  through  flaking  back  part  of  root  of  organic  compound. Annual crop have root system ride, where its root hair can reach broader place so that organic compound which given into ground also progressively increase.Keywords:  Sub  DAS  solo  hulu,  soil  physics  properties,  soil  chemistry  properties,  straightened  composition of crop
PENGARUH DOSIS KOMPOS AZOLLA DAN KALIUM ORGANIK TERHADAP KETERSEDIAAN KALIUM DAN HASIL KACANG TANAH PADA ALFISOL Lutfy Ismoyo; Sumarno Sumarno; Sudadi Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 10, No 2 (2013)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v10i2.194

Abstract

Title : The Effect of Azolla Compost and Organic Pottasium Fertilizer Dosages on Pottasium Availability and Yield of Peanut on Alfisol. Production of groundnut can not meet the national demand right now. One of the reason is the degradation in soil fertility, such as potassium deficiency and low of soil organic matter content. Plants that has potassium-deficiency can not utilize water and nutrients from the soil efficiently. In organic farming system, soil exchangeable-potassium and organic matter content can be increase by the application of plant ash as organic potassium and azolla compost. The research conducted to determine the proper dose of azolla compost and organic potassium to increase exchangeable-potassium and yield of groundnut on Alfisol soil at Jumantono, Karanganyar District, Central Java, Indonesia. The experiment was arranged in Completely Randomized Design (CRD) with single treatment factor of azolla compost and organic pottasium combination (P1, P2, P3, P4, P5, P6, P7, P8) as well as manure and NPK fertilizer treatments. The Variables using in this experiment are K exchanged, CEC, Organic Matter, Total N, pH, plant height, fresh weight and dry stover, fresh weight, dry and number of pods, weight and number of seeds. Data were analyzed by F test and DMRT at 5% level. The land use media as much as 5 kg per polybag with 3 number plants per poybag, and in the second week we used to thinning the plants. Everyday we also doing watering and weeding. The observation were made every week until phase of generatif The results showed the application of azolla compost and organic potassium can increase exchangeable-potassium and yield of groundnut in Alfisol soil. The highest exchangeable-pottasium (0.53me%) taken from the treatment of P7. Moreover the application of azolla compost and organic potassium increased CEC, soil organic matter content, total-N soil as well as shoot fresh and dry weight of peanut.
PENGARUH SAAT PEMUPUKAN UREA PADA SISTEM GANDA AZOLLA‐PADI SAWAH TERHADAP N‐KAPITAL TANAH DAN HASIL PADI DI ENTISOL Sudadi Sudadi; Sumarno Sumarno
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 8, No 2 (2011)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v8i2.4

Abstract

Title : Fertilizing Time Effect of Urea in Dual System Azolla‐Rice Paddy to Soil Capital Nitrogen and Rice Yield on Entisol. The purposed of research was to study the effect of urea use in dual system azolla‐rice paddy to soil capital nitrogen  and rice yield on Entisol. Research  was conducted  on rice paddy field at Colomadu,  Karanganyar  district, Central Java. The experiment  arranged in single factor randomized completely block design (RCBD), with eight treatments says D1  (azolla + 100 kg urea /ha at 0 day after planting‐dap), D2 (azolla + 100 kg urea /ha at 30 dap), D3 (azolla + 100 kg urea /ha at 60 dap), D4 (azolla + 50 kg urea /ha at 0 and 30 dap), D5 (azolla + 50 kg urea /ha at 30 and 60 dap), D6  (azolla + 50 kg urea /ha at 0 and 60 dap), D7  (control treatment ‐ without azolla nor NPK fertilizer), and D8  (lokal farmer treatment ‐ 250 kg urea /ha split three times, 50 kg/ha at 0 dap, 100 kg/ha at 30 dap and 100 kg/ha at 60 dap). Azolla inoculums spreaded 7 dap at rates 500 g/m2. Variables observed were soil capital nitrogen, soil total‐N, tissue total‐N, soil organic matter content and rice yield. Data taken was analyzed  with anova and followed with Duncan Multiple Range Test (DMRT) at 5 %  level of significant. The results show that the use of urea in dual  system  azolla‐rice  paddy  increase  soil  capital  nitrogen,  soil  total‐N,  tissue  total‐N,  soil organic matter content and rice yield at Entisol. The highest soil capital nitrogen (0,953 kg/ha) and rice yield (8 ton/ha) were taken from the treatment of  D8 and D3 respectively.Keywords: azolla‐rice paddy, rice yield, soil capital nitrogen, Urea
FAKTOR-FAKTOR YANG MEMPENGARUHI PERANAN PERANAN INSPEKTOR SEBAGAI INTERNAL AUDITOR DI KABUPATEN LUWU Sumarno Sumarno; Nursan Nursan; Sapar Sapar
Equilibrium : Jurnal Ilmiah Ekonomi, Manajemen dan Akuntansi Vol 3, No 2 (2013)
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah (LPPI) Universitas Muhammadiyah Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.905 KB) | DOI: 10.35906/je001.v3i2.87

Abstract

Dalam menjalankan peranan inspektorat sebagai internal auditor di pengaruhi oleh dua factor yakni factor internal dan factor eksternal. Tujuan penelitian adalah 1) Untuk mengetahui seberapa besar p engaruh factor internal terhadap peranan inspektorat sebagai internal auditor di kabupaten luwu 2)Untuk mengetahui seberapa besar pengaruh factor eksternal terhadap peranan inspektorat sebagai internal auditor di kabupaten luwu. 3) untuk mengetahui seberapa besar pengaruh factor internal dan eksternal terhadap peranan inspektorat sebagai internal auditor di kabupaten luwu. Data dalam penelitian ini merupakan data primer yang diperoleh dari penyebaran kuesioner secara langsung kepada seluruh auditor internal inspektorat kabupaten luwu sebanyak 15 orang. Analisis yang digunakan untuk menguji hipotesis adalah regresi linier berganda, dengan alat bantu SPSS. Hasil penelitian ini menunjukkan factor internal dan factor eksternal secara simultan berpengaruh signifikan terhadap peranan internal auditor pada inspektorat kabupaten luwu sebesar 7, 024 dengan signifikan 0,010, secara persial factor internal dari hasil perhitungan diperoleh angka t hitung sebesar 0,772 < t table sebesar 2, 160 sehingga H0 diterima dan H1 ditolak. Artinya tidak ada hubungan linier antara factor internal. Besarnya pengaruh factor internal terhadap peranan internal auditor inspektorat, yaitu 0,152 atau 15% dianggap tidak signifikan, sedangkan factor eksternal dari hasil perhitungan diperoleh angka t hitung sebesar 3,538 > t table sebesar 2,160 sehingga H0 ditolak dan H1 diterima. Artinya ada hubungan linier antara factor eksternal besarnya pengaruh factor eksternal terhadap peranan internal auditor inspektorat, yaitu 0,699 atau 70% dianggap signifikan. Kesimpulan dari hasil penelitian ini adalah secara persial factor internal tidak berpengaruh terhadap peranan inspektorat sebgai internal auditor, sedangkan factor eksternal berpengaruh dan secasra simultan kedua factor tersebut berpengaruh terhadap peranan inspektorat sebagai internal auditor. Diharapkan agar kita para auditor memperhatikan indicator factor internal dan eksternal dalam menjalankan peranannya serta diharapkan agar kiranya penelitian ini bisa dilanjutkan embai dengan berfokus pada variable yang belum diteliti.
ANALISA RANCANG BANGUN TURBIN TENAGA MAGNET SEDERHANA SEBAGAI SUMBER LISTRIK SKALA RUMAH TANGGA Sumarno Sumarno
Jurnal Teknik Vol 8, No 2 (2019): Juli-Desember 2019
Publisher : Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/jt.v8i2.1482

Abstract

Kebutuhan energi listrik terus bertambah seiring dengan pemenuhan kebutuhan  hidup. Penyediaan sumber energi listrik yang ada di Indonesia pada saat ini sudah mulai mengalami keterbatasan. Pada saat-saat tertentu  pembangkit  listrik yang ada tidak lagi mampu supplai energi listrik. Pemadaman listrik bergantian pun dilakukan untuk kebutuhan pemenuhan energi listrik dari sumber pembangkit serta dampaknya sangat terasa bagi masyarakat, kebutuhan sumber pembangkit listrik bertenaga nuklir masih mengalami pro dan kontra.Dari permasalahan tersebut dapat dirumuskan pada bagaimana membuat model pembangkit listrik alternatif yang dapat diciptakan dengan pemanfaatan gaya tolak menolak magnet. Magnet dengan kutub sama yang ditempatkan pada baling-baling dinamo motor DC akan terjadi putaran keseimbangan gaya. Besar gaya gravitasi dan gaya tolak magnet adalah sama. Keseimbangan  ini akan berubah apa bila ada energi penggerak yang mengganggu keseimbangan. Magnet akan bergerak disekitar keseimbangan saat terjadi gangguan. Bergeraknya magnet akan menimbulkan perubahan fluk magnet. Perubahan fluk disekitar kumparan akan menyebabkan arus induksi pada kumparan sehingga dapat digunakan sebagai sumber arus listrik.Gangguan keseimbangan dari dua magnet yang saling tolak-menolak dapat diperoleh medan magnet tersebut. Pada pembangkit  listrik yang memanfaatkan gaya tolak menolak magnet dinamo motor DC sebagai penggerak magnet agar bisa berputar yang diakibatkan gaya tolakkan magnet. Kata  Kunci  :  Krisis energi, dinamo motor DC, Putaran rendah/tinggi, Magnet stator dan Magnet generator
EVALUASI PROGRAM BURSA KERJA KHUSUS (BKK) SMK DI KABUPATEN BEKASI Sumarno Sumarno
Jurnal Evaluasi Pendidikan Vol 9 No 1 (2018): JURNAL EVALUASI PENDIDIKAN
Publisher : PROGRAM STUDI PENELITIAN DAN EVALUASI PENDIDIKAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.79 KB) | DOI: 10.21009/JEP.091.04

Abstract

Setiap SMK di Kabupaten Bekasi memilki Bursa Kerja Khusus (BKK). Fungsi utama BKK adalah menyalurkan tenaga kerja lulusannya. Evaluasi terhadap program ini menggunakan model kesenjangan (discrepancy) dari Provus. Pelaksanaannya terdiri dari 4 tahapan, yaitu: Desain, Instalasi, Proses, dan Produk. Penelitian ini menggunakan metode kualitatif yang menghasilkan data deskriptif. Tujuan penelitian ini untuk mengetahui kesenjangan antara standar yang ditetapkan dengan fakta aktual yang terjadi. Data dikumpulkan dengan instrumen angket, wawancara, dokumentasi, dan observasi. Analisis data menentukan setiap komponen dengan kategori sangat tidak sesuai, tidak sesuai, sesuai, dan sangat sesuai. Kesenjangan tertinggi tahap desain terdapat pada aspek pedoman penyelenggaraan, sumber daya pada tahap instalasi dan pelaporan pada tahap produk, hal ini terjadi karena pengurus BKK tidak mengetahui petunjuk teknis akibat kurangnya sosialisasi dari Disnaker setempat. Sosialisasi tidak optimal karena kurangnya tenaga Pembina/pemandu dari instansi ketenagakerjaan. Aspek paling baik tingkat kesesuaiannya ada pada tahap proses, hal ini disebabkan beberapa kegiatan terintegrasi dengan kegiatan PKL. Rata-rata hasilnya adalah sesuai standar, keputusannya program dilanjutkan dengan rekomendasi berupa perbaikan pada beberapa komponen.
PENGARUH PRESTASI BELAJAR MATA PELAJARAN PRODUK KREATIF DAN KEWIRAUSAHAAN (PKK) DAN EFIKASI DIRI TERHADAP MINAT BERWIRAUSAHA SISWA SMK NEGERI 2 PEKANBARU Lisdayanti Lisdayanti; Sumarno Sumarno; Hardisem Syabrus
PROMOSI: Jurnal Program Studi Pendidikan Ekonomi Vol 9, No 1 (2021): PROMOSI
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/pro.v9i1.3839

Abstract

This study aims to determine the effect of learning achievement in creative products and entrepreneurship (PKK) subjects and self-efficacy on students' interest in entrepreneurship in SMK Negeri 2 Pekanbaru. The population in this study were students of SMK Negeri 2 Pekanbaru with a total of 836 students and a sample of 89 students obtained from a purposive sampling technique then simplified using the Slovin formula. The characteristics that are considered in sampling with purposive sampling technique are student who are or have completed PKK subjects at SMK Negeri 2 Pekanbaru class XII. Data collection techniques in this study used questionnaires for primary data namely variables of self-efficacy variables and entrepreneurial interest and documentation for secondary data, namely the variable of PKK learning achievement. The data collected was then tabulated and analyzed using multiple linear regression with the help of SPSS 23. The results showed learning achievement PKK subjects and self-efficacy had a positive effect on student interest in entrepreneurship in SMK Negeri 2 Pekanbaru with a regression equation of 23,270 + 0.513 X1 + 0, 456 X2 and contributed 58.3% to students' interest in entrepreneurship.Keywords: Prestasi Belajar, Mata Pelajaran Produk kreatif dan Kewirausahaan, Efikasi Diri, Minat Berwirausaha
Pemurnian Pasir Silika dengan Metode Leaching Asam dan bantuan Sonikasi Sumarno Sumarno
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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

Abstract

Silica sand is one of the natural materials that abundant in Indonesia . In nature, silica is difficult to obtain a high purity compound because it has a high affinity with the others oxide. Purification methode of silica can be done in several ways, one of which is sonication assisted acid leaching methode. In general, leaching medium used a strong acids such as HCl and H2SO4. The using of strong acids will produce waste that requires special handling as B3 waste. So in this research, used aquadest and oxalic acid as the leaching medium are more environmentally. The research have purpose to study the effect of sonication on purification process of silica sand with aquadest and oxalic acid leaching medium to obtain high purity silica sand. The product optained were analyzed by Scanning Electron Microscopy (SEM) and X-Ray Fluorescence (XRF). XRF analysis results showed that the content in the silica sand increased from 97.75% to 99.40% with aquadest leaching medium and 99.46% with oxalic acid leaching medium with the same sonication time is 120 minutes. While the results of SEM analysis showed morphological changes of silica sand after sonication process both with distilled water leaching media and with oxalic acid.
Co-Authors Achmad Noerkhaerin Putra Achmad Syaifudin Adam Sukarno Putra Agnita Siska Pramasdyahsari Agriaf Purdihandoko Agus Purwanto ahmad ryan pratama Alfiyah Alfiyah Alfonds Andrew Maramis Almasdi Syahza Aloysius Duran Corebima Anang Ari Indriyanto Ardiana Nur Maulida Hakim Arief Rahman Arista Nortaviana Arni Mara Hongu Arnovan Pratama Surbakti Atikah Hermansyah Ayu Dita Handayaningtyas Ayu Dita Handayningtyas Bambang Soepeno Bethasiwi Purbasari Bramantyo Airlangga Cakti Indara Gunawan Cakti Indra Gunawan Candra Kristiyan Caska - Daeng Ayub Danang Tri Prasetiyo Daviq Chairilsyah Deswita. S Deswita. S Dewi Kurniawati Dudung Burhanuddin Dwi Nisa Dwi Sulistiyoningsih Dwi Suratimah Edi Eskak Edi Prayitno Eka Irawan Eka Oktaviana Eka Patmasari Elda Oviyani Ellis Nihayati Emy Dahlia Siregar Fitria Miftakhul Jannah Gani Haryana Gilang Gemilang Gimin Gimin Gusmita Sukma Sari.S Gusnardi Gusnardi H. Moh. Natsir Mahmud Hardisem Syabrus Harry Soesanto Hasana Hasana Hendripides Hendripides Henny Indrawati Heny Fitriani Herlis Meira Dewi Heru Satria Tambunan Hery Widijanto Hikmatun Ni&#039;mah huldan Aulia afandi Husam Lamato Ida Dwijayanti Ida Wijayanti Ilya Dwita Putri Irawan Prastomo Irma Nurhayati JAKA WIDADA Jarwo Jarwo Jauhari Syamsiyah Joko Siswanto Joko Winarno Juita Novalia Br. Barus Kamilah Kamilah Kayan Swastika Komsiyah, Komsiyah Kumalasari, Dian Nur Kun Setiono Kus Eddy Sartono Kusmadi Kusmadi Lia Novia Lily Marsita LINATUL MULAIKAH Lisa Lusiana Lisdayanti Lisdayanti Liza Oktaviana Lutfy Ismoyo M. Nur Mustafa Maghfirah Belangi Maimun Zulhaidah A Mala Mazida Mandaty, Fhandy Aldy Marayuni Marayuni Maria Artha Nadeak Mashadi Mashadi MASLIAH NOVITA Meutia Natasya Mohammad Denny Permana Mudinillah, Adam Muh. Abdillah Taufiqurrahman Muhammad Faturahman Almuhaimin Muhammad Iqbal Muhammad Ridho Alfa Robby Muhammad Sai Firdaus Muhtarom Muhtarom Murgiyanti Murgiyanti Nada Kasih Ijora Nisa Khairani Noeng Muhadjir Nur Ida Iriani Nuraini Nuraini Nursan Nursan Nurul Umamah Nuza Hery Setyani Nyoman Sumitra Pingkan Septhalia Prasetiyo Prasetiyo Putu Ayu Yuliani Indiasih R Dewi Mutia Farida Radjiman Ismail Ramadhani Fitri Ramansyah Hidayat Ransa Gustrada Syarif Refiyandi Muhammad Rekanita Akbar Reni Elvina Renna Febryanita Retno Susanti Riadi Armas ROLAS WAHYUDI Rosalin Agustini Rr Sri Kartikowati Rully Putri Nirmala Puji Rurini Retnowati Sadiyah, Ana Arifatus Samto Samto Sapar Sapar Saptariana - Sarah Sisilya Az Badal Sari Agustina Shinta Triwani Silvia Rahmi Sisca Winda Kumalasari Siti Hennida Sari Siti Komariyah Sofyan Marzuki Sri . Handayani Sri Handayani Sri Handayani Sri Hartati Sri Kartikowati Sri Mardiyanti Sri Mujiatun Sri SUMIYATI Suarman Suarman Suci Ramadhani Sudadi Sudadi Sugiyanto Sugiyanto Suharmadi Sanjaya Suhud Wahyudi Sumardi Sumardi Sumarjono Sumarjono Sunarmi Sunarmi Suprayitno Suprayitno Suryati Suryati Syaiful Asmi Hasibuan, Syaiful Asmi Syarifah Faradina Syuhada Sufian Tatik Wardiyati Toni Suharto Triyoto Triyoto Ulfa Andrian Umi Isrotun Wahyuning Islami Welli Nirpa Pasaribu Yanuar Syah Rizky Yasiran Yasiran Yasmirah Mandasari Saragih Yaumil Qoriah Yesi Novianti YOCHA LUSSYANA YUSRA Yolani Safitri Yolla Veronica Sembiring Yuli Haryati Yulius Ndara Walla Yundha Ningrum Rizky Utomo Yunita Wulandari Yusak Suharno Yusran Yusran Zaini Novrika Zaki Naufal Ramadhani