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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Communications in Science and Technology Journal of Bioprocess Chemical and Environmental Engineering Science Journal of Community Engagement Research for Sustainability Jurnal Teknologi Kimia Unimal Jurnal Pengabdian Masyarakat Waradin J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Estungkara: Jurnal Pengabdian Pendidikan Sejarah
Syamsu Herman
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Humanities Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Nursing Public Health Social Sciences Other

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Sintesis Dan Karakterisasi Membran Silika Dengan Variasi Aditif Polyethylene Glycol (Peg) Untuk Pengolahan Limbah Cair Hotel Nandra Saputra; Jhon Armedi Pinem; Syamsu Herman
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

Pollution that come from hotel liquid waste could reduce water quality on surrounding area. One of the ways to overcome the water pollution that come from hotel liquid waste are using membrane technology. In this study, silica membranes were made with 1;2;3 % (w/w) composition variation of Polyethylene Glycol (PEG) and hotel liquid waste treatment using silica membranes were carried out with 1;2;3 bar operating pressure variation. Silica membranes that have been made were characterized by flux measurement and rejection measurement. The highest value of flux was obtained on membranes with 3 % (w/w) PEG composition and 3 bar operating pressure, that is 22,246 L/(m2.hour). The lowest value of flux was obtained on membrane with 1 % (w/w) PEG composition and 1 bar operating pressure, that is 12,843 L/(m2.hour). The highest rejection values of BOD5, COD and TSS parameters were obtained from membranes with 1 (% w/w) PEG composition and 1 bar operating pressure, that are 69,14%, 77,88% and 86,76% respectively. The lowest rejection values of BOD5, COD and TSS parameters were obtained from membranes with 3 (% w/w) PEG composition and 3 bar operating pressure, that are 41,41%, 54,09% and 61,67% respectively.Keywords : membrane, polyethylene glycol (PEG), silica
Penyisihan, Warna, Zat Organik Dan Kekeruhan Pada Air Gambut Dengan Kombinasi Proses Koagulasi-Flokulasi Menggunakan Koagulan Poly Alumunium Chloride (PAC) Dan Membran Ultrafiltrasi Zella Sri Rizka; Syarfi Daud; Syamsu Herman
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

Generally, peat water quality not suitable with water quality standards Permenkes No. 416 / Menkes / Per / IX / 1990. Peat water treatment commonly used to produce treated water still above the quality standard. One of the peat water treatment methods used in this study is combination of coagulation-flocculation and ultrafiltration membrane. This study aims to determine the effect of coagulants Poly Aluminum Chloride (PAC) to decrease colour, organic matter and turbidity, determine the performance of membrane for flux and rejection of colour, organic matter, and turbidity with and without pre-treatment of coagulation flocculation, determine decrease of colour, organic matter, and turbidity in peat water treatment using ultrafiltration membrane with pre-treatment of coagulation-flocculation. Peat water treatment by flocculation and coagulation combination of ultrafiltration membrane using Poly Aluminum Chloride (PAC) as coagulant with dose 150 mg / L, and varying the ultrafiltration membrane feed pressure of 0.5; 1 and 1.5 bar. The result showed that the peat water treatment by combination of coagulation-flocculation and ultrafiltration membrane rejection coefficient values of color, organic matter and turbidity, the highest obtained at the pressure of 0.5 bar, with rejection coefficient values for color, organic matter and turbidity, respectively amounting to 98.72%, 92.54% and 100%. The best average flux value with pre-treatment of coagulation flocculation obtained at pressure 1.5 bar that is 275.400 L / m2.jam.Keywords: Coagulation-Flocculation, Colour, Organic Matter, Peat Water, Poly Aluminium Chloride (PAC), Turbidity, Ultrafiltration Membrane
Isoterm, Termodinamika Dan Kinetika Adsorpsi Logam Cu Menggunakan Adsorben Serbuk Kulit Udang Hadi Ikrima; Yelmida A; Syamsu Herman
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

Most of the shrimp shell waste consists of chitin compounds which can be converted into chitosan. The use of chitin and chitosan are mainly as chelating agents, emulsifiers and adsorbents. In this study, shrimp shell waste was used directly as an adsorbent on Cu metal, without changing the shrimp shells to chitin or chitosan. Shrimp shell waste at the initial stage was treated including washing, drying, refining, sieving and being activated using 0.5 M HCl solution. The activated shrimp shell powder was then used as an adsorbent against Cu metal, by varying the temperature (30, 40 and 50 oC) and mass of the adsorbent (2,5 ; 5,0 and 7,5 grams) . The maximum adsorption capacity occurs at a temperature of 50oC and an adsorbent mass of 7.5 grams with a capacity of 93.59%. The isotherm model of the adsorption process follows the Harkins Jura isotherm model with a R2 value of 0.9891. The kinetics of the adsorption process followed the pseudo second order kinetics with an adsorption rate constant of 0.019 and an R2 value of 0.9974. The adsorption heat capacity (ΔH) is 7.90 kJ / mol and is endothermic.Key words: adsorption, activation, shrimp shell waste, Cu metal.
Pembuatan Biodiesel Dari Biji Saga (Adhenantera Pavonina) Dengan Katalis Padat H-Zeolit James Becker; Syaiful Bahri; Syamsu Herman
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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Abstract

Transesterification reaction is a reaction between the oil (triglyceride) with alcohol to produce methyl esters. One of commercial product is biodiesel. The production of biodieselfrom vegetable oils, especially seed oil saga is still very limited, it is necessary to develop a vegetable oil-based biodiesel. In this research, the manufacture of biodiesel bytransesterification reaction using natural zeolite catalysts are activated to H-Zeolite, with a variation of the molar ratio of reactants (1: 3, 1: 6 and 1: 9) and the number of H-zeolitecatalyst (6%, 8% and 10%) with a fixed variable is the reaction temperature 60 ° C, the reaction time of 200 minutes and the stirring speed of 200 rpm. From the test results showthat the molar ratio transesterification and the amount of catalyst affects the reaction rate toachieve equilibrium of the reaction. The best operating conditions obtained in this study isthe molar ratio of 1: 9 and the amount of catalyst 8% which resulted in a conversion reaction of 86.44%. Characteristics of biodiesel produced in this study meets the standards of commercial biodiesel with kinematic viscosity of 5.15 cp, specific gravity (40 ° C) 0.853 and saponification numbers were 0.49 mg KOH / g sample.Keywords : Biodiesel, H-zeolite, Oil, Transesterification.
Strategi Reseller dalam Meningkatkan Penjualan Produk Pengkilap Mobil/Motor yang Diproduksi oleh Inkubator Bisnis Graphene Guard di Universitas Riau Amri, Amun; Reni Yenti, Silvia; Heltina, Desi; Herman, Syamsu; Aziz, Azridjal; Nadhifah, Evi; Ekwarso, Hendro
Estungkara: Jurnal Pengabdian Pendidikan Sejarah Vol. 2 No. 2 (2023): Jurnal Pengabdian Masyarakat
Publisher : Pendidikan Sejarah FKIP Universitas JAMBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/est.v2i2.29149

Abstract

Efforts to increase sales of car/motorcycle polish products have been carried out by the Graphene Guard business incubator. This product is a downstream research result of lecturer/researcher at the Faculty of Engineering, Riau University. As a new product and not yet known to the public, special strategies are needed to increase sales. In the initial stage, an online and offline sales strategy was carried out, but apparently it did not show encouraging results even though promotions had been carried out. It was felt that a reseller strategy needed to be implemented. The reseller strategy, especially offline resellers, was addressed to the students at Riau University with attractive prices and bonuses. This strategy generated significant sales in a relatively short time. The phenomenon where offline reseller sales results were very different from conventional sales strategies reflecting the changes in consumer behavior and increasingly complex market dynamics. Reseller marketing strategies, especially when carried out by individuals or small groups, often conveyed a strong sense of personalization and trust. In this strategy, focus was given to product advantages, customer testimonials, and real interactions. This created high levels of trust in consumers, and allowed them to feel confident in purchasing the product. This strategy can be a valuable experience for marketing of new products.
Efektivitas Adsorpsi Logam Berat (Fe2+) Menggunakan Arang Aktif Batang Bambu (Bambusoideae) Teraktivasi NaOH Al'farisi, Cory Dian; Irianty, Rozanna Sri; Damanik, Gery Andreas; Herman, Syamsu
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 2 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.2.60-68

Abstract

The environmental pollution that was the center of attention was industrial wasted. Adsorption had been shown to been a more effective method for absorbing heavy metals from wastewater. Adsorption is the absorption of a substance on the surface of another substance. The adsorbent commonly used in adsorption is activated charcoal. Yellow bamboo is a material that could produced charcoal by carbonization. The research aimed to make adsorbents from bamboo, to characterize activated charcoal according to SNI 06-3730-1995. Bamboo stem activated charcoal capacity and calculated the effectiveness of charcoal adsorbents. Bamboo stems actively absorb iron ions (Fe2+). Variations in this process was particle sizes of 40+ 60-, 60+ 80- and 80+ 100- mesh and column diameter sizes of 2, 3 and 4 cm. The analysis results for the characteristics of the activated charcoal complied with SNI provisions, showing a moisture content of 4%, an ash content of 8%, and an iodine adsorption capacity of 1002.45 mg/g.. The best results in this research were the adsorption process at varying particle sizes of 80+ 100- mesh with a column diameter of 2 cm with an adsorption capacity value of 0.896 mg/g and an effectiveness of 90.48%. Variations in column diameter and particle size used affect the adsorption capacity and effectiveness of the adsorption process.
Biogas dari POME: Pengaruh Lingkungan Terhadap Produksi Energi Terbarukan di Industri Kelapa Sawit Amraini, Said Zul; Aidil, Muhammad; Senda, Semuel Pati; Haref, Yoneco; Herman, Syamsu
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 2 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.2.85-97

Abstract

Palm oil mill effluent is a type of organic agro-industrial waste from the by-product of the processing of fresh oil palm fruit bunches to produce Crude Palm Oil. The management of POME as biogas is an added value for companies to meet the needs of energy sources in the Palm Oil Mill, both for Crude Palm Oil, Kernel Crushing Plant, and domestic needs as a source of electrical energy. POME is a colloidal suspension containing 95-96% water, 0.6-0.7% oil and 4-5% fat and total solids. Anaerobic degradation of POME is the main stage in the biogas production process at the Sei Pagar Palm Oil Factory. The ambient temperature was measured at 08.00, 13.00, and 18.00 for 11 days of testing. To analyze the effect of ambient temperature on sample temperature, a sample temperature test was carried out using a pH meter for each ambient temperature test. To analyze the impact of ambient temperature on the flow rate of gas produced and methane content in biogas, the sensor flow rate was checked with the valve at the reactor outlet fully open. The ambient temperature of the reactor does not change the sample temperature because the temperature in the reactor is controlled by the feed entering the reactor. The average temperature of the reactor environment is lower than the reactor so that it does not affect the gas flow rate (biogas formation process). The average temperature of the reactor environment is lower than the reactor temperature so that it does not affect the formation of methane.
Enhancing dissolving pulp quality of mixed raw materials through pre-hydrolysis kraft-cooking: A study on Acacia crassicarpa and Terminalia catappa Sahan, Yusnimar; Rahmi, Sri Wahdini; Evelyn; Herman, Syamsu; Chairul; Khairat; Ohi, Hiroshi; Amri, Amun
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1519

Abstract

Acacia crassicarpa wood is widely used in Indonesia as a raw material for dissolving pulp (DP) by the kraft-cooking process. Given that Indonesia has a rich variety and abundance of cellulose-rich wood, it is deemed crucial to research alternative raw materials, such as Terminalia catappa wood. As an alternative source of raw material, Terminalia catappa possesses excellent adaptability to various environmental conditions and is easy to grow everywhere. The current research sought to produce DP using the mixtures of materials from these two plant species as raw materials by pre-hydrolysis, kraft-cooking, and Elementary Chlorine Free (ECF) bleaching. The DP produced had ISO brightness > 88%, alpha-cellulose content > 94%, viscosity > 6.2 cP, and pentosan content of 2.54%. The DP quality traits have met the SNI 938:2017 standards for rayon-grade pulp. Acacia Crassicarpa and Terminalia Catappa are the prospective wood mixture for producing high-quality dissolving pulp via the kraft-cooking process.
PENGARUH NISBAH STYRENE ACRYLIC DAN LATEKS DALAM BINDER TERHADAP KARAKTERISTIK CAT WATERPROOF nadimisia, tiara dwisca; Afrilianti, Azyarah; Bahruddin, Bahruddin; Wiranata, Arya; Zahrina, Ida; herman, syamsu; jahrizal, jahrizal
Jurnal Teknologi Kimia Unimal Vol. 13 No. 2 (2024): Jurnal Teknologi Kimia Unimal - Nopember 2024
Publisher : Chemical Engineering Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jtku.v13i2.19500

Abstract

Penelitian ini mengeksplorasi potensi penggunaan lateks karet alam dan polimer styrene acrylic sebagai bahan baku pembuatan cat waterproof ramah lingkungan. Tujuan penelitian adalah mengkaji pengaruh nisbah campuran lateks karet alam dan styrene acrylic terhadap karakteristik cat waterproof. Pengaruh yang ingin dikaji meliputi daya tutup, daya cuci, waktu kering sentuh, total kandungan padatan, dan ketahanan air. Lateks karet alam dengan Dry Rubber Content (DRC) 58% digunakan sebagai bahan dasar, sementara binder diproduksi menggunakan metode blending dengan polimer styrene acrylic dan sodium lauryl sulfate (SLS) sebagai bahan tambahan. Variasi nisbah styrene acrylic dan lateks karet alam yaitu (0:100);(10:90);(30:70);(50:50);dan (100:0) (%wt).  Binder tersebut dicampur ke dalam cat dengan kadar 70%. Hasil penelitian menunjukkan bahwa semakin besar nisbah styrene dalam binder maka nilai washability dan total padatan semakin meningkat sehingga waktu kering sentuh semakin cepat dan cat yang dihasilkan akan lebih tahan lama terhadap rembesan air. Semua sampel uji tersebut memperlihatkan karakteristik cat yang memenuhi standar, baik SNI maupun ASTM. Karakteristik tersebut meliputi washability resistance >1200 siklus, total padatan >45%, waktu kering sentuh <60 menit, dan ketahanan terhadap air berkisar 8-10 hari. 
Pembuatan Sabun Cair dari Minyak Sawit di Desa Batu Belah Kabupaten Kampar Zuqni Meldha; Idral Amri; Zulfansyah Zulfansyah; Hari Rionaldo; Syamsu Herman; Nirwana Nirwana; Lisa Legawati; Salma Liska; Yogi Yolanda; Yola Bertilsya Hendri; Alltop Amri Ya Habib
Jurnal Pengabdian Masyarakat Waradin Vol. 5 No. 2 (2025): Jurnal Pengabdian Masyarakat Waradin
Publisher : Sekolah Tinggi Ilmu Ekonomi Pariwisata Indonesia Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/wrd.v5i2.643

Abstract

The demand for natural self-care products is rising as more people recognize the value of keeping healthy skin and protecting the environment. Cooking oil, which is a derivative of palm oil, is an ingredient that is easily found by people in Batu Belah Village, Kampar Regency. This material has great potential to be processed into value-added products such as liquid soap. This study focuses on the use of cooking oil as the primary ingredient for producing liquid soap, while also opening new economic opportunities for the village community. This initiative captured the interest of Batu Belah People.In an attempt to implement the technology, the community service team distribute the liquid soap to the neighborhood.
Co-Authors Adrianto Ahmad Afrilianti, Azyarah Agus Ika Putra Al'farisi, Cory Dian Alfajar, Fariz Amri, Idral Amun Amri Andrizal Andrizal Ardian, Siti Arianty Septia Ningsih Arisman Adnan Azridjal Aziz Bahruddin Bahruddin Chairul Damanik, Gery Andreas Delita, Fuji Desi Heltina Drastinawati Drastinawati, Drastinawati Edy Saputra Enno Yuniarto Evelyn Evi Nadhifah Habib, Alltop Amri Ya Hadi Ikrima Handayani, Della Haref, Yoneco Hari Rionaldo Hendri, Yola Bertilsya Hendro Ekwarso Ida Zahrina Idral Amri Jahrizal James Becker Jhon Armedi Pinem Khairat Khairat, K Khairat, Khairat Lisa Legawati Muhammad Aidil, Muhammad Muhammad Saeri, Muhammad Muhdarina Muhdarina Nababan, Febrina Nadimisia, Tiara Dwisca Nainggolan, Ira Tri Asi Br. Nandra Saputra Nastiti, Yulia Nirwana Nirwana Ohi, Hiroshi Rahmi, Sri Wahdini Reni Yenti, Silvia Rozanna Sri Irianty S. Siswanto Salma Liska Satibi, Syawal Semuel Pati Senda Septian, Handika Setiani Br Manurung Silvia Reni Yenti Soewignjo Agus Nugroho SYAIFUL BAHRI Syarfi Daud Utami, Anggia Afza Wiranata, Arya Yelmida Azis Yolanda, Yogi Yusnimar Sahan Zella Sri Rizka Zulfansyah Zulfansyah Zultiniar, Zultiniar Zuqni Meldha