Claim Missing Document
Check
Articles

Heater lamp product design as hypothermia prevention using qfd (quality function deployment) Subhan, Subhan; Anshar, Khairul; Muarif, Agam; Ningtiyas, Dinda; Pandey, Govinda Prashad; Isa, Muzamir
Journal of Renewable Energy, Electrical, and Computer Engineering Vol 2, No 1 (2022): March 2022
Publisher : Institute for Research and Community Service, Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v2i1.6630

Abstract

Every year the number of climbers increase, there are at least 70,000 climbers including researchers. The increase in the number of climbers will certainly increase the mortality risk of hypothermia. At least 18 people died from hypothermia in 2014 to 2015. The risk of hypothermia can be reduced by handling such as providing warmth to the patient. Warmth can be created by using a tool that produces the right heat, easy and safe to use, easy to carry and also affordable. This is the basis for researches to conduct research on designing heating products in tents as an effort to prevent hypothermia. This research uses the QFD (Quality Function Deployment) method in processing the results of the consumer’s voice, design the product concept, screening and selecting concept and analysis the final product design. Based on the data collection and processing that has been carried out, there are 10 criteria for consumer needs and interests for product, including practical tools to carry, safe to use, can warm the body to have additional functions as cellphone chargers. While the alternative concept chosen in the form of cylindrical tube, using a Li-ion battery, and a frame made of polypropilene plastic. From the chosen concept, then a heating lamp model is designed in the display when used and stored.
A Review Of Reverse Osmosis Membrane Fouling: Formation and Control Rizka Mulyawan; Agam Muarif
International Journal of Engineering, Science and Information Technology Vol 1, No 3 (2021)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.745 KB) | DOI: 10.52088/ijesty.v1i3.127

Abstract

Membrane application in reverse osmosis (RO) membrane is getting more attention especially in producing drinking water. However, RO membrane faces challenges that reduces its performance such as its permeation flux, salt rejection, additional energy demand, lifetime decrease, extra pre-treatment process, cleaning and maintenance. The challenge is the formation of fouling. RO membrane fouling can happen inside or outside the membrane and the characteristics of membrane fouling differs from one type to other types, depending on the nature and location of membrane fouling. There are several types of RO fouling, which are Biofouling, Organic Fouling, Inorganic Fouling and Colloidal Fouling. The causes of RO membrane are different from one to another. The properties and materials of the  solution entering RO membrane are important as it affects the type of fouling of RO membrane fouling. All of the RO membrane foulings need to be considered during membrane usage and demand solution to be controlled. In order to control the fouling in Reverse Osmosis membrane, there have been several control solutions discovered to the membrane fouling challenges. The control solutions are specified to each one of the fouling, in spite of wide applications for some of it. The control solutions are pre-treatment, which has many methods such as photo oxidation, coagulation, scale inhibitor, ion exchange resins, granular media and membrane    treatment, membrane monitoring, membrane cleaning, surface modification, and material addition to membrane or novel membrane   material. With various control solutions discovered, the RO membrane still faces fouling issue and is still demanding some more    advanced applicable control solutions.
PEMBUATAN BIOPORI PADA LAHAN KOPI DALAM UPAYA MENINGKATKAN PRODUKTIVITAS KOPI Syarifuddin; Khairul Anshar; Bakhtiar; Rizka Mulyawan; Agam Muarif
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 5 No 2 (2022): APTEKMAS Volume 5 Nomor 2 2022
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/apts.v5i2.4331

Abstract

Abstract Arabica coffee is one type of coffee that dominates most of the world's coffee market. In Indonesia, arabica coffee can be found in Bali, Java, North Sumatra, Toraja and the Gayo Highlands. The Gayo Highlands are the best coffee producers in Indonesia. One of the determinants of coffee quality and productivity is the quality of coffee plantations. The problems faced by coffee farmers in Pante Raya Village, Kab. Bener Meriah is a dense soil condition because the land was previously used as paddy fields. As for the coffee plantation area of 1 ha, the yield of coffee beans is 2 tons with coffee husk waste as much as 1 ton per year. For now, the coffee skin is just trash. On the other hand, people use fertilizers to maintain and increase coffee productivity, but it costs a lot. Seeing these problems, community service was carried out in Pante Raya Village, Bener Meriah Regency by making biopori using coffee husk waste, leaves and twigs of coffee plants. The installation of this biopore is expected to be useful as a waste treatment medium that is useful for fertilizing the soil, increasing soil pores and absorption of water in the soil. This service activity will be carried out in the form of direct education and training on making biopori by utilizing the waste. Biopori is expected to reduce waste as well as provide alternative fertilizers that are safe and cheap. Keywords: Coffee, Gayo, biopori, waste, fertilizer
A REVIEW OF FOULING OF RO MEMBRANES: FORMATION Agam Muarif; Rizka Mulyawan
CHEMTAG Journal of Chemical Engineering Vol 3, No 1 (2022): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.927 KB) | DOI: 10.56444/cjce.v3i1.2333

Abstract

Membrane application in reverse osmosis (RO) membrane is getting more attention especially in producing drinking water. However, RO membrane faces challenges that reduces its performance such as its permeation flux, salt rejection, additional energy demand, lifetime decrease, extra pre-treatment process, cleaning and maintenance. The challenge is the formation of fouling. RO membrane fouling can happen inside or outside the membrane and the characteristics of membrane fouling differs from one type to other types, depending on the nature and location of membrane fouling. There are several types of RO fouling, which are Biofouling, Organic Fouling, Inorganic Fouling and Colloidal Fouling. The causes of RO membrane are different from one to another. The properties and materials of the solution entering RO membrane are important as it affects the type of fouling of RO membrane fouling. All of the RO membrane foulings need to be considered during membrane usage and demand solution to be controlled.    
Analysis Of Crude Palm Oil (Cpo) Quality Based On Vacuum Dryer Performance At Primajasa Palm Oil Mill Agam Muarif; Rizka Mulyawan; Marisa Fitria
Jurnal Inovasi Teknik Kimia Vol 7, No 1 (2022)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v7i1.6045

Abstract

The products produced at the Primajasa Palm Oil Mill are Crude Palm Oil (CPO) and palm kernel (kernel). The palm oil processing process goes through several stations, including loading ramp station, sterilizing station, threshing stations, digesting and pressing station, clarification station, and kernel stations. In the palm oil processing industry, the main factors that can cause damage palm oil quality are high moisture content and free fatty acid (FFA) levels. This study aims to analyze the quality of CPO based on the performance of the vacuum dryer at the Primajasa Palm Oil Mill as seen from the free fatty acid (FFA) and moisture content. The average results obtained from the analysis of the moisture content of CPO before entering the vacuum dryer and after leaving the vacuum dryer were 0.57% and 0.27%. Meanwhile, the average results obtained from the analysis of FFA CPO levels before entering the vacuum dryer and after leaving the vacuum dryer were 3.63% and 3.57%. Based on these results, it is known that a vacuum dryer can reduce the value of moisture content and FFA levels contained in CPO. These results also indicate that the moisture content and free fatty acid (FFA) content in the sample are in accordance with the national quality standard of CPO.
HDPE Recycled Plastic Composite with Cellulose Fiber Filler Based on Oil Palm Empty Fruit Bunches Wawan Atmaja; Zulnazri Zulnazri; Agam Muarif; Willy W
International Journal of Engineering, Science and Information Technology Vol 1, No 4 (2021)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.813 KB) | DOI: 10.52088/ijesty.v1i4.252

Abstract

Composite is an advanced material product that has better mechanical properties than a single material and has high tensile strength; it can be applied to the construction of boat walls, car dashboards, electronic casings, and others. This study examines the composite quality of HDPE recycled plastic using cellulose fiber-based on Empty Palm Oil Bunches (TKKS), which is processed through an extruder and injection melt blending system. The method used is mixing plastic and fiber materials with a roll mill and blending with an extruder. Cellulose fiber was dissolved with compatibilizer maleic anhydrous (MAH) 2.5% as much as 20 mL, stirred until smooth, and HDPE plastic was dissolved with benzoyl peroxide (BPO) 0.5% 10 mL. The composite was molded with hot pores at 160-170 ᴼC. The tensile test shows the strength of HDPE composite (90: 10) is 27.0 Mpa with maximum load reaching 274 N, HDPE composite (80: 20) is 26.0 MPa with full load 258 N, HDPE composite (70: 30) is 320.0 MPa with a maximum load of 316 N. SEM shows the surface structure of the fiber-compatible HDPE composite. Functional group analysis showed that HDPE composites had O-H and C-O-C functional groups derived from lignocellulosic OPEFB material. The appearance of these two peaks indicates a compatible interaction between the HDPE matrix and cellulose. DSC shows that HDPE composites have a degradation temperature of up to 260 ᴼC and a decomposition temperature of 493.45 ᴼC. This temperature indicates that the HDPE-cellulose composite can withstand heat until it decomposes at a temperature of 493 45 oC.
PENGARUH PENAMBAHAN EKSTRAK BONGGOL NANAS (ENZIM BROMELIN) PADA PEMBUATAN KECAP IKAN DARI IKAN LEMURU (SARDINELLA LEMURU) Reza Dwi Fani; Meriatna Meriatna; Masrullita Masrullita; Suryati Suryati; Agam Muarif
Chemical Engineering Journal Storage (CEJS) Vol 2, No 2 (2022): Chemical Engineering Journal Storage (CEJS) - Juni 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v2i2.7295

Abstract

Ikan merupakan sumber protein hewani utama, yang kaya akan protein dan mempunyai daya cerna mencapai 80%. Karena sifat fisik ikan cepat mengalami pembusukan, khususnya pada iklim tropis dan kelembapan yang tinggi, maka perlu dilakukan pengawetan dan pengolahan salah satunya adalah dengan mengolah ikan menjadi kecap ikan melalui proses fermentasi, ikan yang digunakan pada penelitian ini adalah ikan lemuru, Tujuan penelitian ini adalah untuk menganalisis pengaruh waktu fermentasi dan pengaruh lama fermentasi terhadap kadar protein, kadar air, dan pH. Pada penelitian ini proses hidrolisis dilakukan dengan menambahkan ektrak bonggol nanas (Enzim Bromelin) kedalam daging ikan yang sudah dihaluskan, dengan kosentrasi ekstrak bonggol nanas 5%, 10%, 15%, dan 20% , dan waktu fermentasi selama 1, 3, 5, dan 7 hari. Analisis dilakukan terhadap produk kecap ikan yang meliputi uji kadar protein, kadar air dan pH. Hasil percobaan menunjukkan bahwa kecap ikan secara optimum dapat diproduksi dari ikan lemuru dengan ekstrak bonggol nanas (Enzim Bromelin) sebanyak 20% dan waktu fermentasi 7 hari.
Pembuatan Sabun Mandi Padat dengan Penambahan CHarcoal dariTempurung Kemiri Nurlian Nurlian Nurlian; Sulhatun Sulhatun; Suryati Suryati; Meriatna Meriatna; Agam Muarif
Chemical Engineering Journal Storage (CEJS) Vol 2, No 2 (2022): Chemical Engineering Journal Storage (CEJS) - Juni 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v2i2.7233

Abstract

Cangkang kemiri merupakan limbah yang dapat dimanfaatkan sebagai bahan baku pembuatan karbon aktif (charcoal). Pemanfaatan limbah cangkang kemiri ini dimaksudkan untuk menanggulangi penumpukan limbah cangkang kemiri dan  diharapkan dapat menghasilkan produk yang aman dan ramah lingkungan. Adapun tujuan penelitian ini adalah Menemukan komposisi terbaik dari sabun mandi padat yang telah ditambahkan Charcoal, Menguji kualitas sabun mandi padat yang dibuat dengan variasi penambahan massa Charcoal dan pengaruh perbandingan minyak zaitun pomace dan minyak kelapa (VCO) dan Mengkaji pengaruh penambahan massa Charcoal dan pengaruh perbandingan minyak zaitun pomace dan minyak kelapa (VCO) terhadap nilai pH, kadar air, kadar alkali bebas dan uji organoleptik. Penelitian ini dilakukan dengan beberapa tahapan proses yaitu meliputi tahap persiapan bahan baku  tahap pengayakkan arang aktif, tahap pembuatan sabun dan tahap Maturing. Adapun variasi massa charcoal yang digunakan yaitu 2,5 gr, 5 gr 7,5 gr, 10 gr dan 12,5 gr. Dengan variasi perbandingan minyak zaitun pomace dan minyak kelapa (VCO) 100:100, 125:75, 150:50 ml. Hasil penelitian menunjukkan minyak zaitun pomace  memiliki kadar air lebih tinggi dibandingkan minyak kelapa. Semakin besar perbandingan minyak zaitun yang digunakan daripada minyak kelapa maka kadar air yang dihasilkan semakin tinggi. Kadar alkali bebas tertinggi yaitu 0,081 yang berada pada massa charcoal 12,5 gram dengan perbandingan minyak yang digunakan sebesar 150:50. Adapun standar kualitas sabun telah diatur dalam SNI 3532-2016 yaitu dengan kadar air maksimal kurang dari 14%, kadar alkali bebas maksimal kurang dari 0,1%. Pada setiap sampel telah memenuhi SNI 3532-2016. Pada uji organoleptik, panelis lebih menyukai run 2, 8 dan 10 dengan massa Charcoal 5gr, 7,5gr dan 12,5gr.
PEMBUATAN TAWAS DARI LIMBAH KALENG MINUMAN BEKAS Rati Halimatussakdiyah; Jalaluddin Jalaluddin; Agam Muarif; Masrullita Masrullita; Sulhatun Sulhatun
Chemical Engineering Journal Storage (CEJS) Vol 2, No 2 (2022): Chemical Engineering Journal Storage (CEJS) - Juni 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v2i2.7437

Abstract

Semua kaleng minuman rata-rata terbuat dari aluminium sehingga sangat memungkinkan untuk dimanfaatkan dalam pembuatan tawas. Tawas atau alum adalah suatu senyawa aluminium sulfat dengan rumus kimia [Al2(SO4)212H2O].  Tujuan dari penelitian ini adalah untuk menentukan kualitas kadar tawas sintesis yang dihasilkan dari limbah   kaleng minuman dan menentukan pengaruh rasio alunimium (Al), kalium hidroksida (KOH) dalam pembuatan tawas. Pada penelitian ini digunakan konsentrasi KOH 10 %, 20%, 30% 40%, 50% dan H2SO4 8M dengan berat sampel 5 gram. Dari penelitian ini diperoleh yield tawas yang paling besar (maksimum) diperoleh pada konsentrasi KOH 30% dengan konsentrasi H2SO4 8M. Yield tawas yang diperoleh oleh tawas dari kaleng lasegar yaitu 88,45%, sedangkan tawas yang dihasilkan dari kaleng redbull yaitu 75,48%. Yield tawas dari kaleng lasegar lebih baik daripada kaleng redbull dikarenakan jumlah yield mendekati 100%. Tawas yang berasal dari kaleng lasegar lebih baik dibandingkan tawas yang berasal dari kaleng redbull dengan kadar alumunium 4,64%. Tawas yang diperoleh berbentuk kristal berwarna putih.
ADSORPSI ZAT WARNA METHYLENE BLUE MENGGUNAKAN ADSORBEN DARI AMPAS TEH PADA KOLOM Nur Asiah Indah Rahayu; Novi Sylvia; Syamsul Bahri; Meriatna Meriatna; Agam Muarif
Chemical Engineering Journal Storage (CEJS) Vol 2, No 2 (2022): Chemical Engineering Journal Storage (CEJS) - Juni 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v2i2.7030

Abstract

Methylene blue (MB) merupakan zat pewarna yang umum digunakan pada industri tekstil dan senyawa ini memiliki gugus benzene sehingga sulit untuk terurai secara alami. Penelitian ini bertujuan untuk mengkaji tinggi unggun yang digunakan pada penyisihan methylene blue menggunakan ampas teh. Parameter operasi yang efektif seperti konsentrasi adsorbat, tinggi unggun dan waktu kontak pada adsorpsi telah diselidiki. Data model kinetik dianalisa menggunakan model orde pertama semu, orde kedua semu. Hasil penelitian menunjukkan bahwa kondisi yang terbaik untuk waktu operasi adsorben yang digunakan dengan konsentrasi adsorbat 15 mg/L pada tinggi unggun 8, 12 dan 16 cm berturut-turut yaitu 60 menit, 60 menit dan 75 menit dengan efesiensi penyerapan sebesar 98.4793%, 99.3441% dan 99.4883%. Mekanisme kesetimbangan adsorpsi dipelajari dengan menggunakan dua jenis isotehrm, yaitu isoterm Langmuir dan Freundlich.  Fenomena dari adsorpsi MB ke ampas teh didapatkan bahwa model Freunlich lebih sesuai dalam menjelaskan kesesauaian antara data ekperimen dengan data yang diperoleh dari model. Hal ini juga dapat dibuktikan bahwa nilai koefisien korelasinya (R2) yang diperoleh juga lebih tinggi untuk Freunlich dari pada Langmuir, yaitu 0.9764.
Co-Authors Ade Ikhsan Kamil Adi Setiawan Afra, Khalida Ahmad Fikri Ahmad Fikri Ahmad Fikri Al Usrah, Cut Rizka Amalia, Nabila Amalia, Nabuia Amri Amri Andri Nur rizky Annisa Aulia Ar Razi Arafah, Sadinda Arif Maulana Ashari, Muhammad Rayhan Aulia, Rauzatul Aulia, Yeni Authar, Mhammad Azhari Azhari Azhari Azhari Bakhtiar Bakhtiar Dedi Fariadi Dennis Eka Syahputra Dewi Kumala Sari Dini Rizki Eddy Kurniawan Elviana, Suci Eva Diana Faisal Faisal Fatnia, Fatnia Fibarzi, Wiza Ulfa Fioza Ozly Erian Firda, Hanisyah Gusti Indah Sari Ibrahim, Ishak Ilhami, Gita Ayu Isa, Muzamir Ishak Ibrahim Ishak Ishak Jalaluddin Jalaluddin Kamar, Iqbal Khairul Anshar Khairul Anshar Kurniawati Kurniawati Kurniawati Laksita Ika Paksi Laksono Trisnantoro Lubis, Muhammad Irvan Maulana Lukman Hakim Lukman Hakim Mainisa, Mainisa Maizuar Maizuar Marisa Fitria Marisa Fitria Maryanti Maryanti Masrullita Masrullita Masrullita, Masrullita Maulana Heru Mulya Medyan Riza Melianda Putri Wulandari Meriatna Meriatna Mhd Azrin Milarahma Yulianti Muhammad Muhammad Fahrur Rozi Muhammad Muhammad Muhammad Muhammad Muhammad Muhammad Mujiburrahman Mujiburrahman Mulyawan, Rizka Nabila Adhani Nabila Hamnasia Narul ZA Nasrul ZA Nasrul ZA Nasrul ZA, Nasrul Ningtiyas, Dinda Nissah, Khairun Novi Sylvia Nur Aisyah Nur Asiah Indah Rahayu Nurfikasari, Dara Nurhabiah Nurhabiah Nurlaila, Rizka Nurlian Nurlian Nurlian Nursakinah Nurul Islami, Nurul Nurwardina Sofiyani Pandey, Govinda Prashad pradana, ardie surya Purwoko, Agus Putri, Emilya Nirwana putri, intan nanda Ramadani, Fikri Fadli Rati Halimatussakdiyah Razi, Ar Retnowulan, Sri Rahayu Reza Dwi Fani Rini Meiyanti Riska Putri Ritonga, Renanda Pradila Rizka Mulyawan Rizka Mulyawan Rizka Mulyawan Rizka Mulyawan Rizka Nurlaila Rizki Ramadhan Rizki, Dini Rizzki Andira Roja Andesta Rozanna Dewi S, Syarifuddin Safrida, Riana Sinta Morina siregar, annisa febrianti Sofiyani, Nurwardina Sri Rahayu Retnowulan Subhan A Gani Subhan Subhan Sulhatun Sulhatun Suryati Suryati Suryati Suryati Syahrani, Irma Syamsul Bahri Syamsul Bahri Tsa Tsa Anindya Rakhim Ahmadi Ulfa, Raudhatul Wawan Atmaja Willy W Wiza Ulfa Fibarzi Wiza Ulfa Fibarzi yanti, eva Yaqinnas, Haqqul Yosi, Andre Yulisda, Desvina Zahara Firda Zainuddin Ginting Zulmiardi, Zulmiardi Zulnazri Zulnazri, Z