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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 Kuat Arus Dan Waktu Kontak Pada Proses Elektrokoagulasi Menggunakan Sel Al-Al Dengan Ketebalan 1 mm Untuk Penyisihan TDS Dari Limbah Cair Lumpur Bor Apriyanto, Apriyanto; Daud, Syarfi; MS, Edward HS
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

Liquid waste of the drilling mud is a waste that requires processing before it is released into the environment. Direct discharges to the environment especially to river may cause a risk in the water. Electrocoagulation is one of the alternative methods for wastewater treatment. Electrocoagulation is an electrochemical method for water treatment where on the anode occur the release of active coagulant in the form of metal ions while on the cathode electrolysis reaction occurs which release of hydrogen gas. In this electrocoagulation research the sample use liquid waste of drilling mud PT CPI Duri with TDS value 12.390-14.910 mg/L and pH 7,37-7,98. The research was conducted by batch systems. The electrode that used is Aluminum with size 20 cm x 10 cm x 1 mm. The variations used are electric currents (1, 2, 3, 4, 5 A) and contact time (15, 30, 45, 60, 75 min). Result of the research with treatment of contact time 45 minutes and the electric current of 5 A is the most effective treatment to reduce TDS from 14.800 mg/L to be 10.490 mg/L or reduce by 29,12% and the highest pH increase from 7,38 to be 8,76 or increase by 18,7% at treatment with a contact time of 75 minutes and the electric current of 4 A.Key words : Electrocoagulation, TDS, Aluminium Electroda, Batch System.
The Effect Of Addition Of Clay Lands /(Coagulant Aids), On The Color Purification Of Peat Water With Coagulation-Flocculation Method With Al2SO4 Irwinsyah, Irwinsyah; Daud, Syarfi; Elystia, Shinta
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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Peat water is a blackish brown surface water And contains colors and turbidity that require effective treatment And efficient to be suitable for use by the society. Various types of coagulant continue to be developed one of which is the coagulant of clay with the addition of alum. The purpose of adding coagulant is to destabilize the colloids so that contacs and clumping of particles that will form a deposited floc. This study aims to calculate the efficiency of color and turbidity in peat water and compare the color quality, and turbidity with the standard of clean water quality standard (Permenkes 907 year 2002). The fixed variable used in this study was stirring speed of 100 rpm at contact time of 1 minute and 20 rpm at contact time 15 minutes. The free variable used consisted of 1 grams alum coagulant mass: 0.2 grams of clay soil, 1 grams alum coagulant mass : 0.4 grams of clay soil, 1 grams alum coagulant mass : 0.6 grams of clay soil, 1 grams alum coagulant mass : 0.8 grams of clay soil, 1.0 grams alum coagulant mass : l grams of clay soil . Highest removal efficiency and turbidity 86.45%, 97%, 82.14% at 1 g mass with particle size + 200 mesh.Keywords: Clay Land, Color, Water Peat, Turbidity, Al2SO4
Pengaruh Bioaktivator Mol Tapai Pada Proses Pengomposan Limbah Lumpur Kelapa Sawit Yang Disterilkan Putri, Novia Eka; Yenie, Elvi; Daud, Syarfi
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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Natural composting process takes a long time so many products developed bio-activator such as Mol. This study aims to determine the effect of concentration of activators Mol Tapai on the quality of the compost produced. Composting methods do facultative. Composting is done in the reactor to the size of the reactor used with d1 = 28 cm; d2 = 28 cm; t = 40 cm; air exchange hole diameter of 1 cm to 5 cm distance between holes. Variables used are sterile compost raw material variation and non-sterile as well as variations in the number of Mol Tapai is 200 ml, 250 ml, and 300 ml each treatment. Composting research results with a variety of raw materials by variation Mol fermented sterile 250 ml obtain C / N ratio and a high of 11.35% in non-sterile raw material variation with 250 ml Mol variation of 10.67%, which is in accordance with SNI 19-7030 -2004 about the specifics of mature compost.Keywords: Mol Tapai, palm oil sludge, compost
Pencucian Membran Ultrafiltrasi Menggunakan Bahan Kimia NaOH Dan Surfaktan 5512 Pada Proses Penyaringan Air Terproduksi Ritonga, Desrinayanti; Daud, Syarfi; Elystia, Shinta
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

Water produced is the result of processing of petroleum that were uplifted to the surface with oil and gas, whose number is greather than the generated oil content. Produced water that goes in to a body of water without going through the very first processing has the potential to cause pollution of the environment. One of the technologies that are to manipulate the water produced using technology such as membrane. The toughest challenge in membrane technology is the fouling. This research to study the transmembrane pressure against flux, determine the effectiveness and efficiency of the concentration of NaOH and Surfactant chemistry wash of flux recovery and resistance removal in the process of ultrafiltrasi membrane technology in water filtration process produced and to get clean water from a water filtration process results produced using ultrafiltrasi membrane. The experiment was conducted using ultrafiltration membranes by feeding produced water. The method used is cross flow system by varying the operating pressure of 0,2, 0,4, and 0,6 bar, variations in the concentration of NaOH and Surfactant 1,5%, 2,0%, and 2,5%. Filtration process of produced water lasted for 180 minutes and each leaching time is 30 minutes, the highest effectiveness rate of 60,65% obtained by using surfactant 2,5%, the highest leaching efficiency based on flux recovery value is 98,87% and 60,66% for removal resistance. The highest flux value after chemical cleaning leaching obtained 1,501 ml/menit. in transmembrane pressure of 0,6 bar and the concentration of the surfactant, Where is the longer permeat through the membran with pressure so the smaller the resulting flux.Keywords: produced water; cross flow; flux recovery; membrane ultrafiltrasi; resistance removal
Pengaruh Kecepatan Pengadukan Dan Ukuran Partikel Adsorben Tanah Gambut Dalam Penyisihan Zat Organik, Besi (Fe) Dan pH Pada Air Gambut Fitri, Rizki Febriani; HS, Edward; Daud, Syarfi
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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Riau is a source of water for peaty areas or generally shallow swamp areas with brown water, high levels of humic acid, organic matter and iron. This study aims to determine the effect of stirring speed and particle size of peat soil adsorbent on the efficiency of removing organic substances, metals (Fe) and pH in peat water. The experiment was carried out by adsorption with a contact time of 2 hours by varying the particle size, namely 60, 80 and 100 mesh, stirring speed of 100, 150 and 200 rpm. While the fixed variables are 10% phosphoric acid activator, 300°C temperature and 10 gram mass. The concentration of organic matter removal was 57.2 mg/L with a percentage of 80.92%, metal (Fe) removal of 0.533 mg/L with a percentage of 86.57% at a particle size of 100 mesh and a stirring speed of 200 rpm while the pH was 7 with a particle size of 100 mesh and a stirring speed of 100 rpm. The adsorption capacity of peat water on organic matter was 24,27 mg/gr and iron (Fe) was 0,343 mg/gr at a particle size of 100 mesh and agitation speed of 200 rpm for 2 hours Keywords : Peat Water, Peat Soil, Adsorption, Removal Efficiency, Adsorption Capacity
Pengaruh Dosis Biokoagulan Ekstrak Belimbing Wuluh (Averrhoa Bilimbi) Dan Kecepatan Pengadukan Terhadap Penyisihan Zat Organik Dan Warna Pada Air Gambut Febriana, Hertina; Daud, Syarfi; Darmayanti, Lita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Peat water qualitatively still has constraints such as organic matter and high color, but the use of quantitative peat water has the potential to be processed into clean water. The aim of this study was to study the effect of variations in the dosage of starfruit extract and the speed of stirring on the removal of organic substances and the color of peat water by coagulation and flocculation using the starfruit extract of biokoagulant. This research was carried out with variations in the dosage of starfruit extract of 45 mL, 50 mL, 55 mL, 60 mL  and the stirring speed variations of 100 rpm, 125 rpm, 150 rpm respectively. The results showed the highest removal efficiency of organic matter and color occurred at a dose of coagulant 60 mL / L with a stirring speed of 150 rpm each of 82.23% and 47.22%.   Keywords: Peat Water, Dosage, Stirring Speed, Coagulation-Flocculation, Natural Coagulant
Isoterm Biosorpsi Ion Logam Cu2+ Dengan Menggunakan Limbah Spent Mushroom Substrate (SMS) Sebagai Biosorben Martin, Dicky; Yenie, Elvi; Daud, Syarfi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Spent Mushroom Substrate (SMS) or remaining mushroom media is agro-residue and the remaining mesillium fungus after harvesting mushroom. SMS has several types of polymers such as lignin, cellulose and hemiselulose degraded by mycelium due to the fungal growth process which is then converted into simpler molecules to use as biosorbent that can be used to set aside Cu metals. The purpose of this study was to determine the model of metal adsorption isoterm pattern Cu2+. Keywords: Adsorption, ions Cu2+, Spent Mushroom Substrate (SMS), Isoterm, Biosorbent
Penyisihan, Warna, Zat Organik Dan Kekeruhan Pada Air Gambut Dengan Kombinasi Proses Koagulasi-Flokulasi Menggunakan Koagulan Aluminium Sulfat (Al2(So4)3) Dan Membran Ultrafiltrasi Nastiti, Yulia; Daud, Syarfi; Herman, Syamsu
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

The main challenge in peat water treatment is finding the treatment process that produces treated water quality which meets the quality standard of clean water. One of the peat water treatment is membrane ultrafiltration with combination coagulation-flocculation process. Combination treatment is done to improve the quality of processed water and reduce the workload of the membrane so membrane's performance increases. The purpose of this study was to determine the decrease of turbidity, organic matter and color on coagulation-flocculation process, determine the flux and rejection coefficient of turbidity, organic matter and color in processing using ultrafiltration membranes without and with combination coagulation-flocculation process and determine decrease of color, organic matter, and turbidity in water treatment using membrane ultrafiltration with combination of coagulation-flocculation process. The study was conducted by using 60 mg/L of coagulant aluminum sulfate (Al2(SO4)3) on coagulation-flocculation process and ultrafiltration membrane feed pressure 0.5; 1 and 1.5 bar. The results showed highest rejection coefficient values of turbidity, organic matter and color obtained on peat water treatment by combination coagulation-flocculation process and ultrafiltration membrane at pressure 0.5 bar, with rejection coefficient value for turbidity, organic matter and color respectively amounted to 100 %, 91.04% and 96.68%.Key Words: Aluminum Sulfate, Coagulation-Flocculation, Color, Organic Matter, Peat Water, Turbidity, Ultrafiltration Membrane
Penyisihan Kadar Fosfat Pada Limbah Cair Laundry Menggunakan Biokoagulan Cangkang Keong Mas (Pomacea Canaliculata) Rio Patrianov Nugroho; Syarfi Daud; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Abstract

Biocoagulant is a natural coagulant that has an active substance and has a role as cationic which is able to bind colloidal particles in water. Chitosan is a non-toxic, easy-to-degrade and polyelectrolyte biocogulant that can be found in crustacean animals especially in s (Pomacea Canaliculata). The availability of shell waste has a huge potential to be used as raw material for making chitosan. High concentration of detergent in water can cause water quality to decrease and environmental pollution in the form of increase of phosphate level, so that the previous processing is needed by using coagulation-flocculation method. The research process was done gradually starting from the extraction of shells to chitosan by deproteination process, demineralization, and deacetylation, followed by Coagulation-flocculation method. The study was conducted by varying the dose of coagulant by 200 mg / L, 250 mg / L, 300 mg / L, 350 mg/L and 400 mg / L. The effluent was then analyzed by the laboratory, for phosphate refers to SNI 06-6989.31-2005. The result of the analysis was then compared with the PERMENLH / 5/2014 quality standard. Based on the laboratory results, after analyzing the concentration of the parameters tested, it showed that the maximum allowance of phosphate parameters were 67.57% respectively at 300 mg / L, coagulant dose with stirring speed of 150 rpm for 2 min and 60 rpm for 15 min followed by deposition for 30 min. The result of the analysis is compared with the PERMENLH / 5/2014 quality standard. the results of the analysis for phosphate values have met the quality standard, where the standard limit of laundry liquid waste for phosphate 2 mg/L.Keywords: Biocoagulant, chitosan, coagulation-flocculation, phosphate
Penyisihan COD, BOD Dan TSS Pada Limbah Cair Tahu Secara Koagulasi-Flokulasi Dengan Variasi Dosis Biokoagulan Lidah Buaya Dan Kecepatan Pengadukan Safira Ulyani; Syarfi Daud; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
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Tofu liquid waste contains organic compounds which are generally high. One of the treatments to reduce pollutant level in tofu liquid waste is coagulation and flocculation. The aim of this study was to study the effect of variations dosage of Aloe vera and the speed of stirring on the removal of tofu liquid waste by coagulation and flocculation using the Aloe vera as biocoagulant. This research was carried out with variations dosage of Aloe vera of 80; 120 dan 160 ml/l and the stirring speed variations of 30; 60 dan 90 rpm. The results showed the highest removal efficiency of COD, BOD and TSS at a dose of coagulant 160 ml/ l with a stirring speed of 60 rpm each of 61,90%, 49,97% and 89,73% Keywords: Tofu Liquid Waste, Dosage, Stirring Speed, Coagulation-Flocculation, Aloe Vera.
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