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All Journal agriTECH Biopropal Industri Jurnal Sains dan Teknologi Reaksi Jurnal Vokasi Jurnal Teknologi Jurnal Riset, Inovasi, Teknologi & Terapan

Alfian Putra

Politeknik Negeri Lhokseumawe, Prodi Teknologi Kimia Industri, Lhokseumawe, NAD

Author-ID : 351108

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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PREPARASI ADSORBEN RAMAH LINGKUNGAN BERBASIS KAOLIN ALAM DENGAN SURFAKTAN ANIONIK DAN TEKNOLOGI ULTRASONIKPREPARASI Alfian Putra; Teuku Rihayat; Nurhanifa Aidy
Jurnal Sains dan Teknologi Reaksi Vol 19, No 02 (2021): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v19i02.2488

Penelitian adsorpsi dari bahan alam telah banyak dilakukan dari berbagai bahan baku seperti ampas tebu, ampas kopi, bentonit dan lainnya. Namun persyaratan mekanis dan pengolahan dari berbagai aplikasi belum dapat dipenuhi. Pada studi ini telah dilakukan pengolahan adsorben berbahan kaolin menggunakan teknologi ultasonik untuk meningkatkan daya serapnya untuk mereduksi logam dalam air dengan cara memodifikasi kaolin dengan surfaktan anionik dan diiradiasi ultraonik. Tujuannya adalah mengoptimalisasi penyerapan logam yang lebih sepesifik dalam menyerap logam Fe dan Mg dalam air menggunakan kaolin yang telah dimodifikasi. Kaolin dihaluskan sampai dengan 100 mesh dan dicampurkan dengan surfaktan anioinik sebanyak 45%, dari berat total adsorben yaitu 200 gram. Proses adsorpsi dilakukan menggunakan kaolin modifikasi surfaktan dan tanpa modifikasi surfaktan dengan memvariasikan waktu iradiasi yaitu 5, 10, 15, 30, 50 dan 80 menit pada suhu 55 °C. Konsentrasi logam diukur menggunakan Atomic Absortion Spectrofotometers (AAS) serta dilakukan perhitungan kinetika adsorbsi. Hasil penelitian menunjukkan bahwa efisiensi penyisihan tertinggi terjadi pada kaolin yang dimodifikasi dengan surfaktan anionik. Hasil yang paling signifikan yaitu untuk Fe efisiensi penyisihannya mencapai 72,81 % pada waktu iradiasi 5 menit, sedangkan untuk Mg efisiensi penyisihannya mencapai 65,1% pada waktu iradiasi 5 menit. Kata kunci: Adsorpsi, Adsorben, Kaolin, Ultrasonik, Surfaktan

Pemurnian Minyak Kelapa Sawit Menggunakan Membran Serat Berongga Nasrul Arahman; Cut Erika; Alfian Putra
agriTECH Vol 33, No 1 (2013)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Characterization of modiﬁ ed polyethersulfone hollow ﬁ ber membranes were carried out in order to purify Palm Oil. Effect of membrane morphology on the separation performances of palm oil was investigated. The modieﬁ ed polyethersulfone hollow ﬁ ber membrane was commercially availbale membrane prepared from the system of polyethersulfone/N-methylpirrolidone/polyvinilpyrrolidone, and polyethersulfone/N-methylpirrolidone/Tetronic 1307. Scanning electron microscopy results show that the modiﬁ ed membranes has macrovoids structure larger than the original poliethersulfone membrane. The hydrophilicity property was also increased by addition of polymeric additive to the membrane system. The maximum ﬂ ux of palm oil reached to 0.47 L/m2.hr. atm obtained from the experimenttal condition as applied pressure of 2.0 kg.cm2, by using membran polyethersulfone/N-methylpirrolidone/polyvinylpirrolidone.ABSTRAKKarakterisasi membran serat berongga (hollow ﬁ ber) dari polimer polietersulfon yang telah dimodiﬁ kasi untuk pemurnian minyak kelapa sawit telah dilakukan. Pengaruh morfologi membran dipelajari terhadap kemampuan pemisahan minyak kelapa sawit. Membran modiﬁ kasi adalah membran komersial yang terbuat dari sistem polyethersulfone/Nmethylpirrolidone/polyvinilpyrrolidone,dan polyethersulfone/N-methylpirrolidone/Tetronic 1307. Hasil karakterisasi dengan SEM menunjukkan bahwa membran yang terbuat dari bahan PES/NMP/PVP, dan PES/NMP/Tetronic 1307 mempunyai struktur macrovoid yang lebih banyak dan ukuran yang lebih besar dibandingkan dengan membran yang terbuat dari bahan PES/NMP. Sifat hidroﬁlisitas membran campuran juga menjadi lebih baik jika dibandingkan dengan membran tunggal PES/NMP. Fluks minyak kelapa sawit terbesar diperoleh 0,27 L/m2.hr.atm pada kondisi tekanan operasi 2,0 kg/cm2 untuk membran hollow ﬁ ber dari bahan PES/NMP/PVP.

Adsorption of Lead Ion in Water Solutions using Kaolin-Surfactant Modified as Adsorben Alfian Putra; Novia Lestari; Hesti Meilina
Biopropal Industri Vol 6, No 2 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

Kaolin is one of the natural adsorbent materials. The adsorption ability of kaolin is still low and need to be modified with organic compounds such as surfactants. This research aimed to optimize the lead adsorption in a waste water using modified kaolin. This study modified kaolin adsorben with cationic surfactants which have activated on temperature 300oC during 3 hours in a furnace. The comparison of kaolin and surfactant were 1:0, 1:2, 1:3 and 2:1, respectively while adsorption time were 30, 60 and 90 minute. Lead was used as the artificial waste at a concentration of 100 ppm. The waste from municipal reservoir water storage of Lhokseumawe was used as a benchmark and application. The sample was analyzed by using AAS and characterized by FTIR. The modified adsorben kaolin-surfactan 1:2 gained the highest reduction of efficiency 78% while the lead ion of municipal waste decreased from 4.65 ppm into 2.67 ppm.

Pemisahan Oli Bekas Menggunakan Alat Separator dengan Media Pemisah Karbon Aktif dan Kardus Bekas Nur Hasanah, Mutia; Fauzan, Reza; Putra, Alfian
Jurnal Teknologi Vol 24, No 1 (2024): April 2024
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v24i1.5175

This research was conducted to separate used oil using a separator with activated carbon separation media and used cardboard. The treatment was carried out with time variations (minutes) 5, 10, 15, 20, and 25. With variations in the composition of used oil 2%, 4%, 6%, 8%, and 10%. Oil collection as a sample was carried out at a motorcycle workshop in Gampong Java, Banda Sakti District, Lhokseumawe City. The results of the study were tested for characteristics, pH, total dissolved solid (TDS), turbidity, and chemical oxygen demand (COD) in accordance with quality standards. These results show that pH, turbidity and TDS decrease with the longer the time left for sampling the separation results. Meanwhile, TDS and COD there are some samples that are still slightly below standard. With the influence of the residence time of sampling of sampling separation results, the results of the characteristic test are getting better and more stable. The results of this study show that used oil separation media using activated carbon and used cardboard can be used as a prevention of environmental pollution.

Pengurangan Emisi pada Kendaraan Menggunakan Kaolin Alam sebagai Adsorben di Kota Lhokseumawe Putra, Alfian; Wijaya, Nanang R; Fauzan, Reza; Handayani, Utari
Jurnal Teknologi Vol 24, No 2 (2024): Oktober 2024
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v24i2.5878

This study aims to utilize kaolin as a membrane to reduce CO emissions in vehicles. The study was designed with constant variables including 10% PVA, 10% TiO2 catalyst, 8% starch adhesive, and 130 ml of distilled water, resulting in a total mixture weight of 140 grams. The membrane dimensions were 70 mm in length and 50 mm in diameter, with 19 holes of 3 mm each. Independent variables included kaolin carbon ratios (6:1, 5:1, 4:1, 3:2, 1:1) % of total mixture weight, engine rotation (1000, 2000, and 3000) rpm, and sintering temperatures (800°C, 900°C).The CO absorber is a component of the exhaust system designed to reduce carbon monoxide content in exhaust gases from internal combustion engines. CO absorbers typically consist of noble metal catalyst plates (such as platinum, palladium, and rhodium) embedded on ceramic or metal substrates. When exhaust gases pass through the CO absorber, catalytic reactions occur on the catalyst surface, converting carbon monoxide into carbon dioxide (CO2), which is safer for the environment. The study results showed that membranes with a composition of 65.8 g kaolin and 35 g activated carbon absorbed 84.64% of CO exhaust gases, achieving a final CO concentration of 0.80% at 1000 rpm. At 2000 and 3000 rpm, membranes with a composition of 72.8 g kaolin and 28 g activated carbon absorbed 90.45% and 92.31% of CO exhaust gases, with final CO concentrations of 0.57% and 0.54%, respectively. These results comply with the Ministerial Regulation No. 05 of 2006, which sets the CO emission threshold at 1.5% for the year 2007.

APPLICATION OF BIODRYING TECHNOLOGY IN THE PROCESSING OF BRIQUETTES FROM ORGANIC WASTE IN LHOKSEUMAWE CITY Nurkuzaifi, Muhammad; pardi, p; Putra, Alfian
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6094

ABSTRACT Waste is unwanted waste material after the end of a certain process. There are various processes that can be applied to produce dry waste using biodrying technology. The purpose of this study is to study biodrying technology for the processing of organic waste in Lhokseumawe City to become briquettes and the length of the biodrying process on the quality of briquettes produced from EM4 variations. This study used two independent variables, namely 14 and 21 days of biodrying process and EM4 variations, namely 100 ml, 200 ml, 300 ml, 400 ml and 500 ml. The results of this study show that those that meet the SNI No.1/6235/2000 standard are only ash content testing, volatility content and flame length test, while the moisture content test does not meet SNI No.1/6235/2000 standard.Keywords: Organic waste, biodrying and SNI No.1/6235/2000.

Utilization of Polyurethane with Bentonite-Chitosan Filler As an Anti-Corrosion Paint Izzati, Isra Adelya; Rihayat, Teuku; Putra, Alfian
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6148

ABSTRACTIn this study, the manufacture of polyurethane uses bentonite-chitosan filler materials to improve the ability of heat resistance. The characteristics carried out were assessed in terms of functional group analysis, heat resistance analysis, morphological structure analysis, corrosion test and paint thickness test. The coating process has the advantage of being able to protect the iron surface from environmental influences that result in corrosion of the metal. This study aims to see the effect of mixing polyurethane with Bentonite-Chitosan filler. The sample formulation used was polyurethane with variations of bentonite and chitosan of 2%, 4%, 6%, 8%. The results of the Fourier Transform Infra Red (FT-IR) test showed that there were functional groups N-H, C-H, C=O. Based on the results of the Thermogravimetry Analysis (TGA) test, the Polyurethane sample with 8% bentonite modification : chitosan 8% b/b had the best thermal stability among other samples where the sample began to degrade (on set) at a temperature of 307.04 (oC) and stopped degrading (end set) at a temperature of 399.50 (oC). In the Polyurethane sample with 2% bentonite modification/8% chitosan b/b had lower thermal stability where the sample began to degrade (onset) 293.09(oC) and stopped degrading (end set) at 348.32(oC). The results of the morphological test using SEM tools showed that the chitosan chain was well dispersed into the bentonite interlayer. The corrosion test showed that the addition of bentonite and chitosan affected the corrosion rate, the greater the composition of bentonite and chitosan, which could reduce the corrosion rate. The best sample with a ratio of Polyurethane/Bentonite/Chitosan 8:8 % b/b experienced the smallest corrosion rate of 5.79 mpy and mass loss of 0.10 grams.Keywords : Biodegradable, Corrosion, Polyurethane, Bentonite, Chitosan

Pembuatan Teh Herbal Dari Daun Sukun (Artocarpus Altilis) dan Bunga Melati (Jasminum Sambac) Humairah, Amanda; Putra, Alfian; Nahar, Nahar
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 3, No 1 (2024): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v3i1.6158

Herbal tea is a mixture of flowers, leaves, seeds, roots, or dried fruits used as a medicinal drink. Breadfruit leaf jasmine flower herbal tea is an herbal drink made in the form of tea powder using breadfruit leaves jasmine flowers which have many benefits including, Lowering cholesterol levels, lowering high blood pressure, kidney failure, treating heart disease, stomach acid, diabetes. Herbal tea makers use variations of the withering process for (4 days, 5 days, and 6 days) and the drying method using an oven for 10 minutes at a temperature of 75 ℃. The tests carried out include yield tests, water content, ash content, antioxidant activity tests using the DPPH method, tannin tests, flavonoids and organoleptic tests. The results showed the best herbal tea at 6 days of withering and compared its composition with sample 3 (TH3). The yield obtained was very low, although there was a reduction in raw materials to the product, the quality of the tea was the best because the air obtained was in accordance with the provisions of SNI No. 3.4%. 3836. 2013 and knowing the quality of life of herbal tea which was 10.6%. antioxidants contained in herbal tea breadfruit leaves have strong antioxidant content, has been proven in the IC50 equation as much as 4.865 in accordance with the provisions of less than 50 indicating the amount of antioxidant content In herbal tea made from jasmine leaves and flowers, the tannin content is 112 mg / kg body weight per day. Testing of flavonoid samples changed color to yellow which indicates positive flavonoids in herbal breadfruit jasmine leaves.

Peningkatan Ekonomi Kreatif Masayarakat Desa Alue Lim Kecamatan Blang Mangat Kota Lhokseumawe Melalui Pelatihan Pembuatan Sabun Cair Putra, Alfian; Intan, Syarifah Keumala; Majuar, Edi; Helmi, Helmi
Jurnal Vokasi Vol 2, No 1 (2018): April
Publisher : Politeknik Negeri Lhokseumawe

Salah satu bentuk peningkatan ekonomi masyarakat dilakukan dengan memberikan pelatihan yang mudah dan murah, seperti halnya pada desa Alue Liem Kecamatan Blang Mangat. Dengan tingkat perekeomian yang cukup memmadai keberadaan desa ini dilintasi oleh jalan Line Pipa dan Jalan menuju Simpang keramat sangat potensi untuk pengembangan usaha kreatif seperti pembuatan sabun cair. Pealtihan ini dilakukan oleh Tim Politeknik Negeri Lhokseumawe yang diikuti oleh ibu-ibu dan remaja putrid desa tersebut. Dari hasil pelatihan para peserta dapat melakukan pembuatan sabun caiar secara mandiri dan direncanakan adanya pemasaran dengan harga yang bersaing dengan sabun kemasan namun dengan kualitas yang sesuai dengan standar sabun yang digunakan pada umumnya. Langkah selanjutnya adalah melakukan bimbingan terhadap pengembangan usaha melalui pendampingan terhadap perijinan dan bantuan pemsaran.Kata kunci: Ekonomi, Sabun cair, Pelatihan, KreatifPENDAHULUANDesa Alu Lim Kecamatan Blang Mangat Kota Lhokseumawe dengan jarak hanya lebih kuang 6 Km dari kampus Politeknik Negeri Lhokseumawe memiliki jumlah penduduk sebanyak 2939 jiwa. Sebagian besar mata pencarian penduduk-nya adalah Tukang, Buruh, Petani dan Pedagang dan rata-rata tingkat pendidikan masyarakatnya adalah Tingkat SD dan SMP. Lokasi desa ini berada pada lintasan jalan Line pipa antara Exxon Mobil ke Petra Arun Gas (PAG), sehingga ini menjadi salah satu potensi dalam pengembangan perekonomian dan peningkatan tarap hidup masyarakat.Potensi ini belum termanfaatkan secara maksimal

ROBUST SPECTRAL MODEL FOR LOW METAL CONCENTRATION MEASUREMENT IN AQUEOUS SOLUTION REVEALS THE IMPORTANCE OF WATER ABSORBANCE BANDS Putra, Alfian; Wijaya, Nanang Rahmat
Jurnal Sains dan Teknologi Reaksi Vol 22, No 01 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i01.6332

ABSTRACT In this study, we focused on detection of metal ions at low concentration in aqueous solution by using NIRS. New “aquaphotomics” concept (Tsenkova, 2007) has become a powerful strategy to understand the spectral changes related to small concentration of solutes in aqueous solution. To improve the model accuracy it is important to understand why it is possible to detect the object of interest using NIRS. Although detectable, metals have no absorption in NIR region (Sakudo,et,al, 2007). However it is perhaps due to their vibrational modes that are modulated by forming complexes with organic molecules containing C-H, N-H and O-H bonds. Therefore, alteration of the vibrational mode of water matrix caused by metal can be detected by NIRS. In this study, we present NIR spectroscopy link to aquaphotomics as a tool to predict low concentration (0-10.mg L-1) of Mg(II), Zn(II), Mn(II) and Cd(II).Keywords : NIR spectroscopy, spectral changes, absorbance

Co-Authors Chatarina Umbul Wahyuni Cut Erika E. Elwina Elwina, E Handayani, Utari Hanif, Hanif Helmi Helmi Hesti Meilina Hesti Meilina Humairah, Amanda Inokuma, Emiko Intan, Syarifah Keumala Irwan, I Izzati, Isra Adelya Majuar, Edi Muhammad Nasir Nahar, Nahar Nasrul Arahman Nasution, Ali Napiah Novia Lestari Novia Lestari Nur Hasanah, Mutia Nurkuzaifi, Muhammad Pardi, P R Ridwan Reza Fauzan Ridwan, Ridwan Santo, Ryoko Teuku Rihayat Teuku Rihayat Wijaya, Nanang R Wijaya, Nanang Rahmat Yanti, Azmi Zaimahwati, Zaimahwati

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