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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains JURNAL TEKNIK Jurnal Teknologi Kimia Unimal
Syarfi Daud
Jurusan Teknik Lingkungan Fakultas Teknik Universitas Riau
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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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
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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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
Pengaruh Massa Adsorben Batang Pisang Dan Waktu Kontak Adsorpsi Terhadap Efisiensi Penyisihan Fe Dan Kapasitas Adsorpsi Pada Pengolahan Air Gambut Suziyana Suziyana; Syarfi Daud; Edward HS
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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Air peat surface water that has a dark brown, is acid, levels of iron and manganese is high and has a high organic content. There are negative effects if used directly and continuously without treatment. The aim of this study is to calculate the removal efficiency of metal Fe on the peat water and calculate the adsorption capacity adsorbent of banana stems. Variables used in this study is a variation of the mass of adsorbent 1; 1,5; 2; 2,5 grams and a contact time of 15, 30, 60 and 90 minutes. The maximum removal for Fe metals occur in a mass of 2,5 grams and a contact time of 30 minutes with the adsorption efficiency of 80,31%. The adsorption capacity is 0,027 mg Fe / g on the mass of 1 gram with a contact time of 30 minutes. Type adsorbent banana stem adsorption Fe is Freundlich isotherm assumed coating formed multilayer by R2 of 0,989.Keywords: Adsorption, Peat water, Banana stems adsorbent, Adsorbent mass, Contact time
Penyisihan Zat Organik, Warna Dan Besi (Fe) Pada Pengolahan Air Gambut Secara Koagulasi Dan Flokulasi Dengan Menggunakan Koagulan Alami Dari Biji Jagung (Zea Mays L.) Firdha Ozani Rosselda Fahmi; Dewi Fitria; Syarfi Daud
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Peat water in Riau Province may be a source of clean water because of its availability, but the quality still does not meet the quality standards of clean water according to Minister of Health Regulation No. 32 of 2017, such as organic substances, colors and Fe still high. One method that can be used to remove contaminants in peat water is the coagulation and flocculation process using natural coagulant corn seeds. This study aims to determine the effect of coagulant dose of corn seeds and slow stirring speed in removing organic matter, color and Fe in peat water by varying the coagulant dose of dosis 5 mg/L; 10 mg/L; 15 mg/L; 20 mg/L; 25 mg/L and 30 mg/L The results obtained showed that the highest Fe removal was found at a coagulant dose of 80 mg/L with an efficiency of 61.12%, while for organic substances and colors it did not meet the quality standards. Key words: Coagulation and Flocculation, Peat Water, Corn seeds, Organic Substance, Color and Fe
Pengaruh Suhu Dan Variasi Rasio Plastik Jenis Polypropylene Dan Plastik Polytyrene Terhadap Yield Dengan Proses Pirolisis Ricki Gunawan; Syarfi Daud; Elvi Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Increased plastic waste has a negative impact on the environment if not further processed, Because plastic waste is nonbiodegradable One method that can be used to process plastic waste is pyrolysis method.The purpose of this study was to observe the effect of process variables (temperature and ratio of PP plastic: PS) to yield and characterization of pyrolysed oil produced. the pyrolysis process is carried out at temperature variations of 300 ° C, 350 ° C, and 400 ° C. And variation of PP plastic ratio: PS 100: 0, 80:20, 60:40 and 50:50 hours 120 minutes And active clay catalyst 1.5% of the raw material. The highest yield was 68.87% at 400 ° C and variation of PP: PS 50:50. Characterization of pyrolysis oil obtained in the form of density 0,761 gr / ml, kinematic viscosity 2,961 cSt, flash point 38oC and calorific value 44,673 MJ / kg are in the range of diesel spesifications.Keywords : active clay , Pyrolysis, polypropylene, polystyrene, , pirolitic oil
Pengaruh Tekanan Transmembran Dan Konsentrasi Chemical Cleaning Agent (NaOH) Membran Ultrafiltrasi Aliran Cross Flow Pada Pengolahan Limbah Cair Laundry Eqiu Alkahfi Tarif; Syarfi Daud; Muhammad Reza
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The rapid economic development and community activities increasingly crowded cause appearance laundry business that effect on the environment. Ultrafiltration membrane is one of wastewater treatment technologies, but membranes have limitations such as the occurrence of the phenomenon of concentration polarization and fouling. The research objective of this study the effect of variations in transmembrane pressure against the rejection percentage COD, TSS , and the effect of variations in transmembrane pressure, concentration of washing of the efficiency and effectiveness of washing the membrane. the concentration of the washing of the efficiency and effectiveness of washing the membrane. The process of ultrafiltration membranes and membrane chemical washing wastewater laundry do with variations in pressure of 1 bar , 2 bar , and 3 bar. Variation of chemical cleaning agent concentration of 1%, 1.5% and 2%, rinsing with distilled water for 30 minutes, filtering wastewater laundry for 120 minutes, and washing using chemical cleaning agent (NaOH) for 30 minutes. Results highest percentage of rejection for COD parameter 86.6% and 85.7% TSS parameters in transmembrane pressure of 3 bar. The highest washing efficiency of the value of Flux Recovery (FR) gained 81.9%, and the value of resistance of Removal (RR) gained 82.59% with a concentration of 2% in the transmembrane pressure of 3 bar. The highest leaching effectiveness obtained at 50.21% with a concentration of 2% and a transmembrane pressure of 3 bar.Keywords : Ultrafiltration membrane, Fouling, Transmembrane Pressure, Efficiency of Washing, Effectiveness of Washing
Penyisihan Fosfat Pada Limbah Cair Laundry Dengan Biokoagulan Kitosan Cangkang Udang Windu Evi Royana; Syarfi Daud; Edward Hs
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Chitosan is a Biocoagulant which is not poisonous, easy to degradable and polielectrolite. This research aims to know the the dose of coagulant and stirring speed in fosfat parameter removal to ward Laundry Liquid Waste and the result of the analyzed compared to PERMENLH/5/2014. This research was using Floculation and Sedimentation - Coagulation by using Chitosan from the Windu Shrimp Eggshell with different dose of coagulant and stirring speed to reduce the concentration of fosfat. The dose of coagulant is 150 mg/l, 175 mg/l, 200 mg/l and 225 mg/l and the stirring speed is 100 rpm, 125 rpm and 150 rpm in 1 minute and 40 rpm slow stirring in 20 minutes. The result showed that the optimum dose of Chitosan Biocoagulant 200 mg/l with the stirring speed 150 rpm with the removal efficiency 91,44%. The analysis results for fosfat have fulfill the laundry wastewater quality standards. Keywords: Chitosan, Fosfat, Flokulasi-Kuagulasi, Laundry Liquid wast.
Penurunan Kadar Besi (Fe) Pada Air Tanah Dengan Menggunakan Cascade Aerator (Studi Air Tanah Universitas Riau) Ricky Pribadi; Syarfi Daud; Shinta Elystia
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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Decreased levels of iron (Fe) in ground water still be a challenge, one of simple that can be applied to set aside the iron (Fe) content in the ground water that is aerated. This research aims to study the ability of cascade aerator in setting aside the iron content in ground water and calculate the value of coefficient of gas transfer. With the flow variation of 70, 80, 90 ml/s and time variation 120 minutes, 180 minutes and 240 minutes. The levels of Iron (Fe) before aeration is equal to 1,8 mg/l. The results of the research show the efficiency of the iron (Fe)content of the highest occurs at discharge of 90 ml/s and the best time 120 minutes with the efficiency value is equal to 94,4%. The value of the coefficient of gas transfer lines obtained in experiment 70 ml/s of 0,064/minutes.Keywords: aeration, cascade aerator, iron (Fe), flow, time, the coefficient of gas transfer (KLa)
Pre Treatment Air Gambut Dengan Tanah Lempung Lahan Gambut Dan Aplikasi Membran Ultrafiltrasi Sistem Aliran Cross Flow Untuk Menyisihkan Zat Organik Dan Kekeruhan Marzona Erlita Sari; Syarfi Daud; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Usage of peatland clays as liquid coagulant in pre treatment process still have a problem, so needed a process using ultrafiltration membranes. The purpose of this study was to determine the removal efficiency of organics matter and turbidity in pre treatment process using liquid coagulant of peatland clays with variation coagulant doses and learn the flux and rejection of organics matter and turbidity in peat water in processing using cross flow system ultrafiltration membrane without and with pre treatment. This research was conducted by varying the dose of liquid coagulant by 40 ml, 50 ml and 60 ml to 1000 ml of peat water and variations ultrafiltration membrane operating pressure of 0.5 bar, 1 bar and 1.5 bar. The result showed the best coagulant dosage is 40 ml, the highest flux obtained at processing using ultrafiltration membranes with a pre treatment at a pressure of 1.5 bar and highest rejection of organic matter and turbidity obtained on processing using ultrafiltration membranes with a pre treatment at a pressure of 0.5 bar respectively amounted to 96.34% and 100%.Key words: organic matter, peatland clays, peat water, turbidity, ultrafiltration membrane.
Sintesis dan Karakteristik Membran Komposit Kitosan-Silika Untuk Pengolahan Limbah Cair Hotel: Variasi komposisi Kitosan-Silika Baktiar Simaremare; Jhon Armedi Pinem; Syarfi Daud
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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The membrane is a selective and semipermeable layer that is between two phases, namely the feed phase and the permeate phase. Membrane synthesis using chitosansilica with phase inversion method. The purpose of this research were to make membranes of chitosan-silica for hotel waste water treatment with 2,5:2,5, 2,5:3, 2,5:3,5, 3:2,5, 3:3, 3:3,5, 3,5:2,5, 3,5:3, 3,5:3,5, 4:2,5, 4:3, dan 4:3,5 gram chitosansilika. This research produced porous membrane. The characterization membranes analysis were SEM analysis, tensile strength, flux and rejection. Tensile strength analysis showed that membrane with the highest tensile strenghth was 52,235 Mpa for membrane with 4:3,5 gram composition of chitosan-silika. Based on Flux and rejection results showed that membrane with 3:3,5 gram composition of chitosan-silika was the most effective performance with the flux 21,98 L/m2.h and rejection elimination of BOD was 54,32%, COD was 72,44% and TSS was 84,32%. Keywords : flux, membrane, rejection, ultrafiltration
Pengaruh Kuat Arus Dan Waktu Kontak Pada Proses Elektrokoagulasi Menggunakan Sel Al-Al Dengan Ketebalan 1 MM Untuk Penyisihan Ammonia Dari Limbah Cair Proses Pengolahan Minyak Bumi Muhammad Fauzi; Syarfi Daud; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Every oil and gas processing activity will not be separated from the problem of Ammonia provision, there are still many difficulties. One of the problems that is currently emerging is the problem of the wastewater treatment process. one of the efforts to reduce ammoniacontent in oil processing industry waste is by electrocoagulation process. The aim of the study was to determine the ability of the electrocoagulation method to decrease Ammonia levels and determine the effect of strong current changes and changes in time to decreaseAmmonia. The electrode used is aluminum. Variations in current strength used are 2, 3, 4, 5 Ampere and reaction times of 20, 40, 60 and 80 minutes. The experimental resultsshowed that the best electrical current for ammonia removal was 5 amperes. The best reaction time in the ammonia removal process in this study was 80 minutes of reactiontime. Highest ammonia removal obtained in this study was 79.7% (initial ammonia 52.3 mg / L to 10.6 mg / L).Keywords : electrocoagulation, aluminum, petroleum processing waste, ammonia.
Co-Authors Abd. Rasyid Syamsuri Ade Rani Putri Afmarenti, Winda Apriyanto, Apriyanto Assi Syura Bahruddin Bahruddin Bahruddin Baktiar Simaremare David Andrio Davidson Davidson Desmawita, Dwi Desmawita, Dwi Dewi Fitria Dita Yusrita Edward Edward Edward Hs Edward HS Edward, Edward Elvi Yenie, Elvi Evi Royana Fachry Abda El Rahman Febriana, Hertina Firdha Ozani Rosselda Fahmi Fitri, Rizki Febriani Irpan Syafrianda Irwinsyah, Irwinsyah Isra Desmita Putri Istighfarini, Sri Ayu Emy Ivnaini Andesgur Jaksa Or Justman Jannah, Roudhatul Jecky Asmura Jhon Armedi Pinem Kardo Kardo Lira Aulia Wahyuni, Lira Aulia Lisa Asmiyarna Lisa Asmiyarna Lita Darmayanti M.T. Abdul Rahman Maria Peratenta Martin, Dicky Marzona Erlita Sari Mashitah, Siti Miki Randi Mila Safitri MS, Edward HS Muhammad Irwan Syahputra Muhammad Reza Muhammd Ichsan Mutiara Nursyarah Nastiti, Yulia Nurul Rahmatika Putri Putri Ayu Puspita Putri, Novia Eka Rahmi Ayuni Fuadi Refvi Gusvita Sari Revi Lasmita reyra, Anilza Silvi Ribka Hutapea Ricki Gunawan Ricky Pribadi Riny Afrima Sari Rio Patrianov Nugroho Ritonga, Desrinayanti Safira Ulyani Sembiring, Rinawati Sesvi Bonita. B Shaleh, Idries Hamidi Shinta Elystia Silvia Reni Yenti Sonny Wijaya Suziyana Suziyana Syafdika Sari Siregar Syamsu Herman Tejo Yulandi Yawaritsa Yawaritsa Yohana Siregar Zella Sri Rizka Zostria Hanijah