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Jhon Armedi Pinem
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Engineering

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Sintesis Membran Ultrafiltrasi Polisulfon Untuk Pengolahan Limbah Cair Mall : Variasi Komposisi Polisulfon Amin Fitra; Jhon Armedi Pinem; Edy Saputra
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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Membrane is a selective and semipermeable layer that lies between two phases, namely feed phase and permeate phase. Membrane synthesis using polysulfone with phase inversion method. The purpose of this research were to make membranes of polysulfone for waste water treatment mall with 11%, 13%, 15%, and 17% by weight of polysulfone, operating pressure of 1, 2, and 3 bars. This research produed porous membrane. Based on characterization of membrane permeability, selectivity, and porous statistic showed that membrane polysulfone were proven as membrane ultrafiltration.Keywords : phase inversion, membrane, waste water treatment mall, ultrafiltration
Pengaruh Kecepatan Pengadukan Dan Tekanan Pemompaan Pada Kombinasi Proses Koagulasi Dan Membran Ultrafiltrasi Dalam Pengolahan Limbah Cair Industri Karet Selvi ' Angraini; Jhon Armedi Pinem; Edy ' Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Laboratory scale studies have been conducted to assess the effect of stirring speed and pressure pumping on a combination of coagulation and ultrafiltration membranes in crumb rubber wastewater treatment. Prior to treatment, neutralization of wastewater in advance using 0.1 N NaOH to obtain a pH neutral in wastewater. The function of neutralization is to optimize the performance of the coagulation process. wastewater which has been neutralized then carried coagulation-flocculation process using a coagulant PAC with a concentration of 100 ppm. Coagulation process is done by varying the stirring speed of 100 rpm, 200 rpm and 300 rpm for 5 minutes and continued with the process of flocculation with a stirring speed of 60 rpm for 10 minutes. Wastewater then allowed to sedimentation for 30 minutes to precipitate the floc-floc had formed. Then the wastewater is separated from the sediment / floc using filter paper. The result showed that the maximum stirring speed in the coagulation process to reduce pollutant load in wastewater rubber is 200 rpm. Wastewater has been coagulated with stirring speed of 200 rpm and then fed into the ultrafiltration membranes with a variation of pressure of 1 bar, 2 bar and 3 bar. The maximum operating pressure ultrafiltration membranes to reduce the pollutant load in wastewater rubber is 3 bar. A combination of coagulation and ultrafiltration membrane able to reduce pollutant load in wastewater rubber with a value of BOD decline is 84.11%, COD is 84.17% , TSS is 95.40% and ammonia is 51.19%.Keywords: Ammonia, BOD, COD, coagulation, wastewater,ultrafiltration membranes, PAC, TSS.
Pembuatan Membran Silika Dari Bahan Alam Untuk Pemisahan Limbah Rhodamin B Nani Agustina; Jhon Armedi Pinem; Edy Saputra
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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The membrane is a selective and semi permeable layer between two phases, namely the feed phase and the permeate phase. Membrane synthesis uses silica for the treatment of Rhodamin B waste with variations of PVA 8, 10, 12, 14 ml with an operating pressure of 2, 3, 4 bar. This research produced a porous membrane. Characteristic tests conducted include SEM, flux and reflection analysis. based on membrane flux test and reflection obtained an effective membrane performance that is on the membrane composition of PVA 14 ml with operating flux at a pressure of 2, 3, 4 bars respectively is 20.68 L / m2. Based on the characteristics of permeability, selectivity, and pore membrane statistics show that the silica membrane is an ultrafiltration membrane. Keywords: Silica, membrane, Rhodamin B waste, ultrafiltration
Pembuatan Dan Karakterisasi Membran Selulosa Asetat Dari Serat Daun Nanas Untuk Pengolahan Limbah Pulp And Paper Eka Putri Sriandriani; Jhon Armedi Pinem; Edy Saputra
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 thin layer between two phases, namely the feed phase and permeate phase. One of the ingredients for making membranes is cellulose acetate from pineapple leaf waste. The purpose of this research is to make cellulose acetate membrane using cellulose from pineapple leaf waste as the main raw material with composition variation and pressure variations. In this research uses variations in polymer cellulose acetate are 15% (w/w), 20% (w/w) and 25% (w/w) and pressure variations are 1 bar, 2 bar and 3 bar. The stages of making membranes are taking pineapple leaf fibers, making cellulose acetate, making cellulose acetate membrane and testing the mechanical properties of the membrane. At optimum condition, flux value was obtained 22.26 L/m2.h at 3 bar with cellulose acetate composition 25% w/w. While the highest rejection value was obtained at a membrane composition of 25% w / w with COD 81.12%, BOD 76.03% and TSS 77.91% at 3 bar pressure. If more cellulose acetate composition were used, the flux value will be decrease and the rejection will be increase. If pressure increase, rejection and flux value will get higher. Keywords : cellulose acetate, flux, membrane, rejection.
Pemanfaatan Biji Kelor (Moringa Oleifera) Sebagai Koagulan Pada Pengolahan Air Payau Menjadi Air Minum Menggunakan Proses Koagulasi Ultrafiltrasi Riny Afrima Sari; Jhon Armedi Pinem; Syarfi Daud
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The availability of drinking water which complies the standard requirements of drinking water quality is getting hard to find, it makes the handling of brackish water is needed, so the kelor seed which an be used as natural coagulation is needed. Besides, the development of membrane technology nowadays grows rapidly. It can be used to process the brackish water more effective compared with conventional way. One of the used membrane technology is ultrafiltration membrane (UF). This research is done to find out of the kelor seed’s performance as coagulation and ultrafiltration membrane in processing brackish water to be good drinking water in separatig color parameter, chloride, hardness, organic essence, TDS, pH, iron, mangan, nitrate, chopper, zinc, and sulphate. This research procedure is divided into three stages which are; the first stage is bio coagulation making, the second stage is coagulation-floculation, and the third is filtration using ultrafiltration membrane. The research’s result shows the color isolation, chloride, kesadahan, organic essence, TDS, pH, iron, mangan, nitrate, chopper, zinc, and sulphate of brackish water which has been added with kelor seed’s powder effectively occurs in 350ppm and 2bar pressure can isolate 98,763%, chloride 84,303%, kesadahan 48,989%, organic essence 89,862%, TDS 44,204% pH sebesar 16,867%, iron 91,64%, mangan 89,77%, nitrate 36,58%, chopper 55, 833%, zinc 54,518% and sulphate decreasing to 82,616%, where this result has fulfilled the drinking water’s standard quality based on the rules of health ministry 2010.Keywords: Kelor seed (moringa oleifera), Brackish water, Ultrafiltration membrane.
Pengaruh Kombinasi Proses Pretreatment (Koagulasi-Flokulasi) Dan Membran Reverse Osmosis Untuk Pengolahan Air Payau Sastra Silvester Ginting; Jhon Armedi Pinem; Rozanna Sri Irianty
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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In general, Riau coastal communities difficult to get clean water because the water resources in the coastal areas of brackish water is not to be used for everyday life. Therefore, the necessary technology for processing brackish water into clean water. This research aims to determine the performance of the process of coagulation-flocculation and reverse osmosis membrane on processing brackish water into clean water. Reverse osmosis membrane used is a type of spiral wound measuring 0,0001 μm and coagulant used PAC coagulant. In this study, the variable used is the concentration of PAC coagulant and reverse osmosis membrane operating pressure. Experiment result obtained the optimum condition of PAC coagulant concentration is 150 mg/L, which PAC can be designated turbidity up to 88.46% and 91.84% hardness. At a pressure of 8 bar, permeate flux preceded by coagulation-flocculation of 25.81 L/m2.jam. Rejection coefficient at a pressure of 8 bar brackish water after coagulation-flocculation had 98.72% of TDS; 96.99% of turbidity; 97.62% of organic substances; 96.37% of hardness and 92.4% chloride.Keywords: brackish water, coagulation-flocculation, reverse osmosis membranes.
Pengolahan Palm Oil Mill Effluent (POME) Menggunakan Teknologi Membran Dan Pre-Treatment Koagulasi-Flokulasi Jaksa Or Justman; Jhon Armedi Pinem; Syarfi Daud
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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This study evaluate the performance of nanofiltration (NF) membrane system and pre-treatment coagulation and floculation in the treatment of palm oil mill effluent (POME) by varying the effect of concentration of coagulant, slow mixing speed, and transmembrane pressure. The process of coagulation-flocculation used aluminium sulfate with variation of concentration 3.5 g/l; 4.0 g/l; 4.5 g/l. The process completed with rapid stirring 200 rpm for 5 minutes and variation of slow stirring 65 rpm; 85 rpm; 105 rpm for 15 minutes, settling time for 30 minutes. Nanofiltration membrane processes conducted during the 60-minute operation on transmembrane pressure variation 6.5 bar; 7.5 bar; and 8.5 bar. In each treatment process, wastewater quality tests were carried out with biochemical oxygen demand (BOD) test parameters, chemical oxygen demand (COD), and total suspended solid (TSS). In addition, an analysis of permeate fluxes and the percentage of NF membrane rejection was also carried out. The research results obtained the best concentration of aluminium sulfate at 4.5 g/L and slow mixing speed 65 rpm i.e. of 71.04%; 75.49%; and 90.43% respectively for BOD, COD, and TSS. The research results obtained the value of most NF membrane high selectivity at transmembrane pressure 8.5 bar i.e. of 84.66%; 86.76%; and 94.95% respectively for BOD, COD, and TSS with a flux value of 6.32 L/m2.hours.Keywords: Aluminium Sulfate, Coagulation, Flocculation, Nanofiltration, Palm Oil Mill Effluent
Pengolahan Limbah Cair Sawit Dengan Metode Aop (Advanced Oxidation Process) Menggunakan Katalis LaMnO3 Perovskite Dan Oksidan Peroxymonosulfate M Arief Riandy; Edy Saputra; Jhon Armedi Pinem
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Processing of palm oil into Crude Palm Oil (CPO) will produce a large amount of liquid waste. To produce a ton of crude palm oil (CPO) produced 6 m3 of palm oil mill effluent. In this study, a process for removing organic compounds in wastewater using the advanced oxidation process by combining peroxymonosulfate (2KHS5.KHSO4.K2SO4) and a catalyst of LaMnO3 Perovskite. The combination will produce sulfate free radicals that capable degrading harmful organic compounds in effluent effectively. Nanocrystalline LaMnO3 was obtained by calcination at a temperature of 800 °C for 2 hours with an average crystal diameter of the highest peak of 29 nm in the shape of the Rhombohedral catalyst and the catalyst has qualified the catalyst with a nanoparticle structure. Several variations of oxidation process variables were performed to assess their effect on organic matter decline. Some fixed variables were oxidation reaction temperature 30 oC, reaction time 120 min, stirring speed 400 rpm, and concentration of peroxymonosulfate solution 2 g/L, pH of liquid waste is 8 and catalyst concentration 0,4 g / L. Conclution of this research is efficiency of 80.5 % for decreasing COD and efficiency by 15,6% for TOC reduction. This proved that the LaMnO3 catalyst is capable of activating peroxymonosulfate.Keywords : AOP, LaMnO3 Perovskite, Oxidation, Peroxymonosulfate
Co-Authors Al-Fitri, Mahriandhanie Chika Amin Fitra Amri, Idral Amri, Idral Amun Amri Arief Pratama Avisha Baktiar Simaremare Edy Saputra Eka Putri Sriandriani Elvi Yenie, Elvi Eufransia, Lamria Ewith Riska Rachma Fajril Akbar Geo Rayfandy Hendriadi Siregar Hermana Setti Tarigan Idral Amri Ilok Dianggoni Irdoni HS Jaksa Or Justman Liona Margarita Siahaan M Arief Riandy Megah Mulia Ginting Mutia Yuli Rahmawati Nandra Saputra Nani Agustina Priscilla Vidya Merarin Rahmat Kurniawan Nasution Ramadhani, Trie Sucy Riny Afrima Sari Rozanna Sri Irianty Sastra Silvester Ginting Selvi ' Angraini Syamsu Herman Syarfi Daud Syelvia Putri Utami Vany Silvia Windy Nila Hakim Yunita Selonika