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All Journal Reaktor Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Majalah Kulit, Karet, dan Plastik JOURNAL OF EARTH ENERGY ENGINEERING Journal Of Chemical Process Engineering (JCPE) Civic-Culture : Jurnal Ilmu Pendidikan PKN dan Sosial Budaya Chemistry Indonesian Journal of Chemical Research Jurnal Kesehatan Indonesia Jurnal Ilmiah Akuntansi Peradaban Unri Conference Series: Community Engagement Jurnal Teknik Kimia Indonesia Journal of Bioprocess Chemical and Environmental Engineering Science Warta Perkaretan Prosiding Konferensi Nasional PKM-CSR Jurnal Teknologi Kimia Unimal Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) JURNAL SIPISSANGNGI: Jurnal Pengabdian Kepada Masyarakat LAVOISIER: Chemistry Education Journal Jurnal Sains dan Ilmu Terapan AGROTEKBIS: Jurnal Ilmu Pertanian Journal Of Chemical Process Engineering LAVOISIER: Chemistry Education Journal JURNAL REKAYASA KIMIA & LINGKUNGAN Proceeding International Conference on Education
Bahruddin Bahruddin
Universitas Riau
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Pembuatan Komposit Plastik Pati Sagu-Carboxymethyl Cellulose Dengan Penambahan Plasticizer Gliserol Viodita Rizki; Said Zul Amraini; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Food packaging aims to protect food products from various physical and mechanical damage. Food packaging that is generally in the form of plastic derived from petroleum is non-renewable, polluting the environment and harmful to human health. One alternative to overcoming this problem is the use of bioplastics that can be decomposed and consumed in the form of edible films. The purpose of this study was to study the effect of levels of carboxymethyl cellulose (CMC) and glycerol plasticizers on mechanical properties and biodegradation of sago starch based bioplastics. Bioplastics were made by mixing sago starch, glycerol (15, 20, 25 % w/w) and CMC (35, 40, 45 % w/w). The resulting bioplastics were carried out by several tests which included tensile strength, elongation, biodegradation and data analysis using Design Expert. The most significant factor affecting all responses was CMC levels followed by glycerol plasticizers. The optimum process conditions were obtained at CMC content 45 % w/w and glycerol plasticizer 15 % w/w with a response value of tensile strength of 8,3 MPa, elongation of 16,8 % and biodegradation 51 %. Keywords: bioplastics, CMC, filler, glycerol, sago starch, RSM
Modifikasi Bioplastik Berbasis Pati-Polivinil Alkohol (PVA) Dengan Cross-Linking Agent Asam Sitrat Dan Pemplastis Sorbitol Yoga Pratama; Bahruddin Bahruddin; Idral Idral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bioplastic characteristics are influenced by various parameters, including levels of cross linking agents (such as citric acid) and plasticizers (such as sorbitol). The research was to study the effect of citric acid and sorbitol levels on mechanical properties, cross linking (characterized by ester groups), and biodegradation of bioplastics based starch-polyvinyl alcohol (PVA). Bioplastic manufacturing is done by mixing sago starch -PVA (1: 3), sorbitol (10, 15, 20% w/w) and citric acid (2.5; 5; 7.5% w/w) at 90ºC for 55°C minutes, optimization of process conditions is determined by response surface methodology (RSM). The parameters tested include tensile strength test, elongation, and biodegradation. The most significant factor affecting all responses was the level of citric acid and sorbitol. The optimum process conditions were obtained at 4.8% w / citric acid content and sorbitol 11.4% w / w with a tensile strength response of 26,34 MPa, elongation 379%, and 49,18% biodegradation. Keywords: bioplastics, citrid acid, sorbitol, polyvinyl alcohol, RSM, sago starch
Epoksidasi Karet Alam Dengan Menggunakan Surfaktan Amonium Lauril Sulfat Sebagai Wetting Agent Donny Kurniawan; Nirwana Nirwana; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

Epoxidation of natural rubber were tried to be produced under various conditions within in-situ epoxidation reaction. The use of ammonium lauryl sulphate (ALS) as wetting agent also the effect of hydrogen peroxide (H2O2) amount and the reaction temperature were discussed. The molar ratio values of the isoprene units of natural rubber to formic acid and H2O2 was set at 1:1:1, 1:1:2, and 1:1:3 while the temperature was varied by 40, 50 and 60o C. ALS that been used were 1 phr within 100 ml Latex NR that contained 20,52% DRC. The process reaction were using a reactor with stirrer and water bath for five hours. The results were shown in spectroscopy FT-IR instrument. From the preparation, we know that the natural rubber that been used had the same rubber content compare to the previous researcher. The molar ratio and temperature variation that have been used were not succed to made epoxidation group in natural rubber. The function of ALS as wetting agent at the preparation were not worked enough, so the epoxidized were not produced.Keywords: ALS, formic acid, H2O2, in-situ epoxidation
Pengaruh Diameter Dan Panjang Serat Pelepah Sawit Terhadap Sifat Dan Morfologi Wood Plastic Composit (WPC) Siti Sakinah; Bahruddin Bahruddin; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Abstract

The length and diameter of the fibers of palm frond is one of the factors that affect the physical and mechanical properties of the material WPC. This study aims to determine the effect of fiber diameter and length of the palm fronds to the properties and morphology of wood plastic composite (WPC). WPC samples prepared by the method of melt blending the fibers of palm fronds, PP, Maleated polypropylene (MAPP), and paraffin for 65 minutes at a temperature of 170 ° C and a rotor speed of 80 rpm using the Internal Mixer. The length and diameter of the fibers of palm fronds used is ± 1 mm, 1 cm and 5 cm in diameter filler: - 40 ~ + 60 mesh, - 60 ~ + 80 mesh and - 80 ~ + 100 mesh. While the ratio of the weight ratio of PP / fiber palm fronds are 50/50 and 70/30. The test results showed that the best mechanical properties resulting in a length of 1 mm and the diameter of the fiber - 80 ~ + 100 mesh at a ratio of polypropylene / palm frond fibers 70/30 with a value of 16.44 MPa tensile strength and flexural strength 31.21 MPa. In testing the physical properties of the best value generated with the water content value of 8,61%, the absorption value of 1.78%, the highest density value of 0.99 g /cm3 and thickness swelling lowest value of 0.33%, while in the SEM testing, interaction between filler and matrix are still lacking thus forming agglomeration as a result of the fiber and the matrix material evenly mixed at WPC.Keywords: fiber diameter, fiber length, physical, mechanical, morphological, wood plastic composite
Modifikasi Pati Sagu Dengan Metode Asetilasi Untuk Peningkatan Sifat Tensile Bioplastik Yoga Deswan Suwary; Yelmida Yelmida; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Bioplastics are an alternative material to replace conventional plastic packaging so as not to pollute the environment. One method of modifying bioplastics is the acetylation method which is a modified starch method obtained from reacting starch with hydroxyl groups to produce hemiacetal and aldehyde. This study aims to make modified bioplastics with better tensile strength than ordinary bioplastics. The analysis performed was FTIR test, substitution degree test, and mechanical properties of tensile strength. The best results from each test are the value obtained by the value of the substitution degree 0,992, FTIR at the vibration for the wavelength range 1633 - 1645 cm-1, the tensile strength value of 1,893 MPa bioplastically penetrated the decay results of the methylated starch and 12 % filler content b / b and 10 % plasticizers b / b.Keywords : acetylation, bioplastic, acetylated starch, acetylated bioplastic
Pengaruh Pretreatment Batang Sawit Terhadap Sifat Dan Morfologi Wood Plastic Composite (WPC) Muchlis Ade Putra; Ahmad Fadli; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Abstract

Palm trunk wood is one of solid waste from palm plantations that have not been utilized optimally. This waste can be developed as materials for Wood Plastic Composite (WPC). Extractive substances and hemicellulose fraction of this material may inhibit mixing process between wood filler and matrix, so it takes a pretreatment to eliminate these fraction. Effect of pretreatment on the properties and morphology of the resulting WPC studied in this research. Pretreatment was performed in an autoclave using water and solution of oxalic acid (OA) with concentration 0,05 M and 0,1 M at soaking temperature 1000C and 1400C then held for 5 and 15 minutes. Mixing the filler and matrix with the ratio 30/70, 2% mass paraffin and 5% mass of Maleic Anhydrate Polypropylene (MAPP) was conducted on Internal Mixer Labo Plastomills with temperature and rotor speed conditions 170 0C and 80 rpm respectively. Results of the lignocellulose analysis showed that highest reduction of extractive substances and hemicellulose fraction was 95,94 % and 25,22 %. The best mechanical and physical properties found in the pretreated sample with conditions 0,05 M OA concentration, 140 0C soaking temperature, and 15 minutes soaking time. The tensile strength, flexural strength, and water absorption values was 273,244 kgf/cm2, 427,551 kgf/cm2 and 1,120 %, respectively.Keywords : filler, lignocelluloce, pretreatment, wood plastic composite
Pengaruh Pencucian Membran Ultrafiltrasi Menggunakan Surfactan Dan NaOH Pada Proses Penyaringan Air Terproduksi Sonny Wijaya; Syarfi Daud; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

One of water treatment technology that can be used for treat produced water is membrane technology. The most of challenging in membrane technology is fouling. The objective of this research are to study influence of ultrafiltration membrane washing to flux recovery and removal resistance by using surfactant and NaOH for treat produced water. Membrane that to be used on this research is membrane ultrafiltration with pore size between 0.1500 until 0.0014 micron and using capillary module configuration. The method that to be used is current-cross flow for filtration proses with filtration time 180 minutes with pressure in 0.2 bar, 0.4 bar, 0.6 bar and concentration of cleaning agent surfactant and NaOH in 1.5%, 2.0% and 2.5% by using counter-cross flow with pressure 0.8 bar and time for washing in 30 minutes. The highest washing effectiveness rate of 69.53% obtained by using surfactant 2.5% and filtration pressure 0.6 bar, the highest leaching efficiency based on flux recovery value is 99.32% and 99.65% for removal resistance obtained by using surfactant 2.5% and filtration pressure 0.2 bar.  Key words: flux recovery, fouling, produced water, removal resistance, surfactant, ultrafiltration membrane
Sifat Dan Morfologi Bioplastik Berbasis Pati Sagu Dengan Penambahan Filler Clay Dan Plasticizer Gliserol Anugerah Rifaldi; Irdoni Hs; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Bioplastic is one of alternative to relpace comercial plastic that can be harmful to environment. Bioplastic is made to make degradation become easier. One of potential raw material is sago because it has a highest starch component. The aims of this research are the study of impact clay as filler and glycerol as plasticizer to mechanical properties (tensile strenght, elongation, modulus young), hidrophobicity (water uptake), biodegradation and morphology. The synthesis method is solution intercalation of starch, water, filler and plasticizer with variation of filler are 3 (%w/w), 6 (%w/w), 9 (%w/w), 12 (%w/w) and glycerol are 10 (%w/w), 14 (%w/w), 18 (%w/w), 22 (%w/w). The analysis show that filler clay and glycerol give an impact to mechanical properties of bioplastic. the best mechanical properties is on bioplastic with composition 3 % filler and 14 % glycerol with tensile strenght 2.891 Mpa, % elongation 30.99 %, modulus young 9.39 Mpa. The highest hidrophobicity of bioplastic is 85.71% and residual persentation is between 67.39 % to 81.25 % in 8 day. Micrograf analysis shows that filler distribution is not be spread evenly on sago starch matrices.Keywords : bioplastic, clay, filler, glycerol, plasticizer, sago strach
Aplikasi Katalis α-MnO2-400 Yang Dikalsinasi Pada Temperatur 400oc Untuk Degradasi Kandungan Organik Limbah Cair Industri Pulp Dan Kertas Peji Nopeles; Edy Saputra; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The pulp and paper industry is a water-intensive industry, and number third in the world and also a significant contributor to pollutant discharge to the environment. It is know that the low COD/BOD ratio obtained from pulp industry wastewater is an average of 0.3 while the ideal of biodegradability value is in the range above 0.5. Thus, there are alternative treatments that can degrade hazardous compounds in wastewater that are slow to degrade through the oxidation process, known as the Advanced Oxidation Process (AOP). AOP is based on active radicals which are produced as oxidizing agents to mineralize the complex chemical substance in the wastewater. One of the active radicals, known sulfate radicals (SO4*), has a high oxidation potential of 2.5 – 3.1 V. Several studies showed that radical sulfates can be produced by catalytic oxodation process, such as combination of Peroxymonosulfate with homogeneous metal ion catalyst (Fe2+, Mn2+, Ni 2+, Co2+, Cd2+, Cu2+, Ag+1, Cr3+, Zn2+). In this study, AOP method peroxymonosulfate which was activated with the catalyst α-MnO2-400 were used to treat organic content in wastewater of pulp and paper industry. The α-MnO2-400 catalyst was produced from 1:3 molar potassium permanganate (KMnO4) and maleic acid that calcined at 400oC. This catalyst was characterized by XRD, BET and FESEM. From XRD analysis obtained the peak aligned with JCPDS Standard. From the BET analysis obtained surface area is 49.17 m2/g, pore size 6.4 nm and pore total 0,16 cm3/g. From FESEM analysis obtained crystalit structured with average length 21 nm. The best degradation of COD and TOC concentration obtained at temperature 45oC, at retention time 240 minutes, with peroxymonosulfate concentration 2,0 g/L and catalyst concentration 0,4 g/L (73% and 77%). Key word: AOP, Catalyst, COD, Peroxymonosulfate, Waste water
Polimerisasi Ester Dari Asam Lemak Sawit Distilat (ALSD) Menggunakan Inisiator benzoil Peroksida 0,3 % Herry Novriansyah; Ahmad Fadli; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Palm Fatty Acid distillate (PFAD) as a byproduct the processing of palm oil has great potential to be used as raw material oil-based polymers. The aims of this research to study the process polymerization of ester from PFAD using initiator (benzoyl peroxide) 0.3%. Stage of the process consists of three stages. The esterification stage was done at temperatur70° C, reaction time of 120 minutes, reactant ratio 1: 8 (PFAD: methanol), concentration of catalyst (H2SO4) 1% (w/w) PFAD; polymerization stage was done at temperature 120, 130,and 140°C, concentration of initiator (benzoyl peroxide) 0.3% (w/w) and variation of polymerization reaction time 3, 4, and 5 hours, and polyesterification stage was done at temperature 175-200 °C, ratio of reactants 1: 1 (polymerized methyl ester: ethylene glycol), and the reaction time of 4 hours. The results of polymerization was analyzed by using viscosity test, FT-IR (Fourier Transform Infra Red) and GCMS (Gas Chromatography Mass Spectrometry). The highest viscosity was 32,97 mPa.s at temperature 140°C and 4 hours. Theresult using FT-IR showed that the polymerization process was unsuccessful, this was indicated by the presence of the vinyl group. The result of GCMS showed there had been molecular weight addition in polymerization process, that was only three times the initial molecular weight.Keywords: benzoyl peroxide, esterification, palm fatty acid distillate, polymerization
Co-Authors Ade Putra Ade Rahayu Putri Adhy Prayitno Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Ady Maulana Afrianti, Dwi Afrila Afrila Afrilianti, Azyarah Afrilla, Nurul Ahmad Fadli Ahmad Fadli Ahmad Riadi S Hasibuan Aidil Akbar Akbar, Anif Aulia Alfian Malik Almasdi Syahza Alumni STIKES Husada Borneo Ambtenarie Jessica Sihombing, Ambtenarie Jessica Aminuyati Amir Hamzah Amrizal Amrizal ' Amun Amri Andreas Sahat Parsaulian Andri Mulia Angelina Angelina Anugerah Rifaldi Aras Mulyadi Aris Aprianto Cahyono Artha, Ulfa Dwi Arya Wiranata Arya Wiranata Arya Wiranata Bramansyah Riswanda Briliantina Rossa Cindy Oktaviani Damayanti, Elok David Andrio Deliana, Putri DESI PURNAMA SARI Dewi Maya Sari Dian Anggraini Purba Dian Eka Indriani Djaimi Bakce Donny Kurniawan Dwifirman, Widya Edi Saputra Efriyeldi, Efriyeldi Ekawati, Lestari Endro Siswoko Eri Malindo Fachry Abda El Rahman Fadhila Nursyifa Fadli, A Fauzi, Subehan Firdaus Septiawan Fitra Annisa Gede Wibowo Gunawan Gunawan Hamsar Hamsar Handayani, K.H Sri Hara Novarisa Nanda Hasrul Hasrul Hendri, Zwilla Oktoriana Heni Sugesti Herlili Peronika Herry Novriansyah Hotnida Butar Butar HS, Irdoni. Ida Zahrina Idral Amri Idral Idral Irdoni HS Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Isra, Muhammad Ivan Fadhillah Ivan Fadhillah Jabosar Ronggur Hamonangan Panjaitan Jahrizal Khairat Khairat, Khairat Khairat, Khairat KRISTINA WIJAYA Liendra Juniarti Lita Darmayanti Lubis, Abdillah Lubis, Apriadi Luci Octaria Lusiana Sri Wahyuni M. Iwan Fermi Maradona Maradona Mariatul Qiftiah Melda Helena S Melly Anggraeni Mery Christina Meysara Meysara MS, Frasucia Aquaviva Muchlis Ade Putra Mudinillah, Adam Muhammad Anshar Muhammad Muhammad Muhammad Muhammad Muhammad Nasri Katman Muhammad Nur Muhammad Reza Muhammad Rivai Nadimisia, Tiara Dwisca Ni putu Vidya Primarista Nirwana Nirwana Nonot Suwarno Nopi Andri Musfa, Nopi Andri Novriyani, Vivi Nurazizah Nurazizah, Nurazizah Nurhidayah Nurhidayah Nurul Aini Thaibil Fadhly ojsadmin Oktaviani, Cindy Pakpahan, Cindy Peji Nopeles Puskesmas Guntung Payung R Firmansyah Rani Yuliantari Razita Hariani Rina Gunarti Rizky Sandy Harahap Robby Kumar Robby Kumar Romfis, Dio Rosmawati, Putri Roy Marthin Panjaitan Rozanna Sri Irianty RS Khusus Bedah Siaga Banjarmasin Russita Martani Russita Martani Septian, Septian Septiana Veronika S Septiana Veronika s, Septiana Veronika Shaleh, Idries Hamidi Siti Sakinah Sonny Wijaya Sri Helianty Sri Helianty Sri Rezeki Muria Sri Rezeki Muria STIKES Husada Borneo Sudirman Sudirman Sugesti, Heni Sumarno Sumarno Sunardjo SUSANTO, RENO Susanty, Wenny Suwondo Suwondo Syahwardini, Trisuciati Syamsu Herman Syarfi Daud Syarfi, Syarfi Syarfie, Syarfie Syelvia Putri Utami Syelvia Putri Utami Syelvia Putri Utami Syoffinal Syoffinal Thamrin Thamrin Toety Marliaty Trisuciati Syahwardini Trisuciati Syahwardini Trisuciati Syahwardini Umar Umar Ummy Aisyah Rochaeni Viodita Rizki Vivi Novriyani W, Ririen Wahyu Suci Rahmani Wahyu Suci Rahmani Wenny Susanty Wira Bima Stevent Sembiring Wira Irawan Rossani Wiranata, Arya Yanny Sartika Yelmida Azis Yoga Deswan Suwary Yoga Pratama Yogi Chandra Yolanda, Putri Gusti Yulia, Indri Yunus, Aulia Yusnila Halawa Zainal Abidin Zuchra Helwani Zul Amraini, Said Zuliarti, Indah Zultiniar Zultiniar Zultiniar, Zultiniar