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All Journal Media Mesin: Majalah Teknik Mesin Jurnal Kimia Riset JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Nusantara Science and Technology Proceedings Jurnal Abdimas Berdaya : Jurnal Pembelajaran, Pemberdayaan dan Pengabdian Masyarakat International Journal of Eco-Innovation in Science and Engineering (IJEISE)
AR Yelvia Sunarti
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
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Mass Balance Analysis of Bioethanol Production from Petai Peel (Parkia speciosa) through Enzymatic Process Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Nerissa Arviana; Luckyana Aini; A.R Yelvia Sunarti; Reva Edra Nugraha
International Journal of Eco-Innovation in Science and Engineering Vol. 2 No. 02 (2021): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v2i02.48

Abstract

The consumption of fuel for transportation is increasing during the last decade. Bioethanol is one of the renewable energy has a good opportunity to be applied when the lack of fossil fuel. Bioethanol is derived from the lignocellulose substance through a fermentation process. In this research, the lignocellulose came from the petai peel (Parkia speciosa). The peel was hydrolyzed using an enzyme and continuously fermented for 5 days. The aim of this research is to analyst the mass balance of the bioethanol production from petai peel (Parkia speciosa) through the enzymatic process. The enzyme used in this research are alfa amylase (10 ml) and glucoamylase (10 ml), also Saccharomyces cerevisiae used in the fermentation process. The result shows that the initial material of petai peel was 57 grams will produce bioethanol around 14 grams.
Analisa Teknis dan Ekonomis pada Desain Alat Decanter pada Pabrik Biodiesel Erwan Adi Saputro; Tahan Aprijal Simamora; Achmad Rizaldi; AR Yelvia Sunarti
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol 5, No 2 (2021): EDISI NOVEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v5i2.5163

Abstract

 Pemerintah Indonesia menetapkan kebijakan energi nasional dalam pengembangan sumber energi alternatif sebagai pengganti BBM, salah satunya biodiesel. Saat ini, pengembangan biodiesel umumnya menggunakan kapasitas relatif kecil dengan proses batch. Beberapa peralatan pendukung pada proses batch produksi biodiesel yaitu alat produksi biodiesel dan alat pemisahan produk biodiesel. Pemisahan produk biodiesel dilakukan untuk mendapatkan kemurnian produk. Salah satu alat yang digunakan dalam pemisahan produk biodiesel adalah decanter. Decanter merupakan komponen peralatan pada pabrik pengolahan kelapa sawit maupun biodiesel, yang berfungsi untuk memisahkan minyak dengan senyawa lain seperti gliserin, berdasarkan atas perbedaan densitas, sebelum menuju ke tahap pemurnian seperti kolom distilasi. Penelitian ini bertujuan untuk memprediksi harga decanter di masa mendatang berdasarkan spesifikasi alat. Penelitian ini dilakukan dengan menentukan spesifikasi alat yang diperlukan berdasarkan kapasitas dan menghitung penentuan harga menggunakan persamaan Peters & Timmerhauss dan dibandingkan dengan harga di pasaran saat ini. Hasil perhitungan menunjukkan bahwa semakin besar kapasitas maka semakin besar dimensi alat decanter seperti volume, panjang, diameter tangki, tebal shell yang diperlukan. Selain itu, apabila semakin besar kapasitas dan diameter yang diperlukan maka harganya semakin mahal. Berdasarkan perhitungan penentuan harga decanter hasilnya sesuai dengan harga yang ada dipasaran saat ini. Sehingga metode perhitungan ini layak digunakan untuk memprediksi harga decanter.
PENDAYAGUNAAN DAN METORSHIP KADER PKK KELURAHAN GEBANG PUTIH SURABAYA DALAM MENGOLAH LIMBAH ORGANIK RUMAH TANGGA SEBAGAI KOMPOS IRIT LAHAN DENGAN EM4 SEBAGAI BIOAKTIVATOR Nur Aini Fauziyah; Dyah Suci Perwitasari; Kusuma Wardhani Mas’udah; Primasari Cahya Wardhani; Nailul Hasan; Pardi Sampe Tola; AR Yelvia Sunarti; Kindriari Nurma Wahyusi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 6, No 1 (2022): Maret
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v6i1.7756

Abstract

ABSTRAKKegiatan pendayagunaan dan mentoring pengolahan limbah organik rumah tangga pada jurnal ini merupakan bentuk tindak lanjut dari kegiatan penyuluhan yang telah dilakukan sebelumnya (Perwitasari dkk., 2021). Dengan menggunakan metode ringkas yang irit lahan, masyarakat Kelurahan Gebang Putih telah mampu mengolah limbah organik sederhana menjadi kompos siap guna dengan menggunakan EM4 sebagai bioaktivator. Metode yang dikembangkan pada kegiatan pengabdian ini adalah melalui metode mentoring secara online dengan kader PKK yang ada di Kelurahan Gebang Putih, Surabaya.  Meski mentoring tidak bisa dilakukan secara langsung, kader PKK bersama perwakilan warga telah berhasil mendayagunakan sampah organik rumah tangga sebagai kompos organik. Kegiatan ini terbukti mampu meningkatkan nilai guna limbah organik menjadi semakin bernilai ekonomis. Warga menjadi lebih hemat karena tak perlu lagi membeli kompos jika ingin bercocok tanam. Harapannya, kelak kompos akan menjadi salah satu peluang ekonomi yang menjanjikan bagi warga Kelurahan Gebang Putih. Kata Kunci: pendayagunaan; mentoring; EM4.ABSTRACTThe utilization and mentoring activities for simple organic waste processing in this journal are a form of follow-up to the counseling activities that have been carried out previously (Perwitasari et al., 2021). By using a compact method that saves land, the people of Gebang Putih Village have been able to process simple organic waste into ready-to-use compost using EM4 as a bioactivator. The method developed in this service activity is through an online mentoring method with PKK cadres in Gebang Putih Village, Surabaya. Although mentoring cannot be done directly, PKK cadres together with community representatives have succeeded in utilizing household organic waste as organic compost. This activity is proven to be able to increase the use value of organic waste to become more economically valuable. Residents become more efficient because they no longer need to buy compost if they want to grow crops. It is hoped that in the future compost will become a promising economic opportunity for residents of Gebang Putih. Keywords: development; mentoring; EM4.
PERFORMANCE ANALYSIS OF HEAT EXCHANGER AT PHOSPHATE ACID CONCENTRATED UNIT PT PETROCHEMICAL GRESIK Erwan Adi Saputro; Widiya Ningrum; Muhammad Faishal Ma’arif; AR Yelvia Sunarti
Media Mesin: Majalah Teknik Mesin Vol 23, No 2 (2022)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v23i2.14211

Abstract

PT Petrokimia Gresik is the most complete fertilizer producing company and also produces fertilizer raw materials such as phosphoric acid. The process technology used in this company is Nissan C Process. One of the steps in this process is the phosphoric acid concentration unit. This unit consists of several steps such as evaporation, cooling, and fluorine scrubber. In the evaporation process, the most important equipment is the heat exchanger. As time goes by, it is necessary to evaluate the performance of this equipment. So, this case study aims to evaluate the performance of the heat exchanger, including the pressure of the heat exchanger the allowable pressure also to calculate the efficiency of the heat exchanger to determine whether the equipment is still suitable for use or not. Based on the calculation and analysis,  obtained the pressure drop on the shell is 0.8817 psi, the pressure drop on the tube is 4.549 psi, and the efficiency of the equipment is 82.7%. So, it can be concluded that the heat exchanger used by PT Petrokimia Gresik is still suitable for use.
EFFECT OF CATALYST PROPERTIES ON THE DEOXYGENATION REACTION OF VEGETABLE OIL AND MODEL COMPOUND TO PRODUCE DIESEL RANGE HYDROCARBON FUELS: A REVIEW Reva Edra Nugraha; A. R. Yelvia Sunarti; Hellna Tehubijuluw; Zuhriah Mumtazah
Jurnal Kimia Riset Vol. 7 No. 1 (2022): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v7i1.35974

Abstract

The concern associated with the depletion of fossil fuel energy has opened up windows of opportunity for researchers to develop potential energy from renewable resources. The renewable green diesel with diesel range hydrocarbon structure has gained increasing popularity by removing oxygen molecule via direct or hydrodeoxygenation (HDO) and indirect or deoxygenation (DO) reaction.  The catalyst design is an important key to achieve the high quality of diesel range hydrocarbon fuels. The different catalyst properties effect to the distribution of deoxygenated liquid product, the catalytic activity and coke formation during the reaction process. The interaction between metal and support catalyst causes electron transfer to give the synestistic effect. The acidity and basicity play important role in C-C and C-O breaking bond in triglyceride and prevent the coke formation. The pore structure and pore size catalyst provide the accessibility of active sites alleviates the diffusion limitation of reactants/ products.
Synthesis and Modification of Nano-Precipitated Calcium Carbonate (PCC) with Addition of Ethylene Glycol Sani; Mega Rosilina; Mochamad Titus Maulana; A. R Yelvia Sunarti; Srie Muljani; Dwi Hery Astuti; Isni Utami
International Journal of Eco-Innovation in Science and Engineering Vol. 3 No. 01 (2022): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i01.57

Abstract

ZA fertilizer waste (Ammonium sulfate) is waste generated from the industrial process of producing ZA fertilizer. The waste contains very high calcium and has the potential to be used as a raw material in the manufacture of Precipitated Calcium Carbonate (PCC). PCC with certain qualities can be developed in the field of advanced materials, with size modification into nanoparticles. One method to produce nanoparticles is using the coprecipitation method, with the help of a polymer solution. This study aims to produce Nano-PCC by finding the best conditions of CaCl2: Ethylene Glycol mole ratio and stirring speed. Nano-PCC is synthesized by reacting fertilizer waste with HCl to form a CaCl2 solution. Then, the solution is mixed with ethylene glycol to prevent particle agglomeration so that the size obtained will be smaller. The mixture is then reacted with Na2CO3 to form precipitated calcium carbonate (PCC). In this study, the variables were the mole ratio of CaCl2: ethylene glycol (1:12, 1:14, 1:18, 1:20) and stirring speed (350, 500, 650, 800, and 950 rpm). Based on PSA analysis, the Nano-PCC obtained at the smallest CaCl2: ethylene glycol ratio 1:12, stirring speed 950 rpm was 51.83 nm. Based on Scherrer’s calculations with XRD, the particle size obtained was 48.25 nm. SEM analysis showed that the crystals formed were dominated by vaterite crystals, with a size range of 55.71-607.79 nm.
The Effect of Variation of Raw Materials and Addition of Molasses Adhesive on the Quality of Blotong Bricket Caecilia Pujiastuti; Okta Maulidian; Putri Nur Wahyuni; AR Yelvia Sunarti
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2730

Abstract

Blotong is one of the wastes produced by sugar factories that have the potential to be used as an alternative fuel. The cellulose content contained in blotong has the potential to be used as raw material for making briquettes. This study aims to determine the effect of the composition of blotong and banana midrib with molasses adhesive on the moisture content and ash content of the resulting briquettes. The manufacture of briquettes is carried out by several procedures, such as the preparation of raw materials starting from drying and size reduction, then cured using a pyrolyzer, refining and sifting, printing, and drying briquettes. The results showed that the addition of banana fronds and molasses adhesive could increase the water content and reduce the ash content of blotong briquettes. The results showed that the addition of banana fronds and molasses adhesive could increase the water content and reduce the ash content of blotong briquettes. The lowest ash content was found in the ratio of blotong: banana midrib (50: 50) which was 32.0489%. The best water content is found in the ratio of blotong: banana midrib (70: 30). The results showed that the addition of banana fronds and molasses adhesive could increase the water content and reduce the ash content of blotong briquettes.
Implementation of Hazard Analysis and Critical Control Point (HACCP) in Cu’s Chicken Crispy Production Process A.R. Yelvia Sunarti; Moch Akbar Munin Putra; Moh Nur Fuadzi; Erwan Adi Saputro; Ika Nawang Puspitawati
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2744

Abstract

Food safety issues are still an important issue in the food sector in Indonesia and need special attention in food control programs. Therefore, it is necessary to improve the quality and safety of the products produced by developing a food safety assurance system in the form of a Hazard Analysis and Critical Control Point (HACCP). HACCP is a food safety assurance system in the form of a systematic approach to identifying hazards and put in place control systems to prevent them. One of the important reasons for implementing the HACCP system in the food industry is because the ingredients used during the production process have the possibility of contamination that can harm consumers. Cu's Chicken Crispy is a small industry that produces food. His party wants to implement a Hazard Analysis Critical Control Point (HACCP) management system to improve product quality assurance. This study aims to identify hazards related to the production aspects (raw materials, packaging, and processes) of Cu’s Chicken Crispy and determine the CCP related to the production of Cu’s Chicken Crispy. This study conducted a direct interview with the owner and made a direct visit to Mrs. Cu's food stall. In this study, it was found that there is a significant potential danger to chicken meat raw materials. At the stage of the production process that falls into the category of salting, draining and packaging refer to CCP.
Analysis of Hazard Analysis Critical Control Point in the Serabi Solo Shop Ika Nawang Puspitawati; Laili Mabrur Rohma; Ahmad Thobroni Akbar; AR Yelvia Sunarti; Erwan Adi Saputro
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2745

Abstract

Food is a basic human need. so that food hygiene needs to be considered so that it does not have a negative impact on human health. Many kinds of food are sold outside, such as regional food. To find out the critical point of food, it is necessary to study literature, observations and interviews with small industries. The purpose of this reaserch is to identify the preparation of HACCP (Hazard Analysis Critical Control Point) application on small industries, which is Serabi solo shop. From the observations made, a critical point hazard analysis will be carried out starting from the preparation of the Serabi solo material to packaging. The results show that the Serabi solo shop had 34.78% Prerequisite Programs. So the Serabi solo shop need more improvement to meet the standards of food safety management.
Design of Hazard Analysis Critical Control Point (HACCP) in Rendang Padang Restaurant Erwan Adi Saputro; Moh. Nofianto; Arbiter Khalida Bramanta; A.R. Yelvia Sunarti
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2753

Abstract

Food safety and nutrition will determine the degree of health. Many restaurants sell various types of food but not yet known whether the food served is safe or not. One of the typical foods from Padang restaurants is rendang. The cooking process of rendang needs a long time, so rendang is made in large quantities. It causes rendang to experience storage long enough that it can trigger bacterial growth. Therefore, HACCP is needed to prevent food contamination. This study aims to determine the design of HACCP in rendang padang restaurant. This research used survey and direct interview methods with the owner to determine the design and implementation of HACCP. Based on the analysis, show that the formulation of the HACCP stages shows that the main points of Critical ingredients are spices and coconut milk, receipt and preparation of raw materials, preparation of equipment used, cooking process, storage, and distribution. Corrective action that can be taken is to return raw materials and provide advice to the seller and always clean. From the results of bacterial testing on rendang, it meets the requirements of SNI 7474:2009. Padang restaurant entrepreneurs are advised to choose suppliers of raw materials implement a food safety system and apply personal hygiene and food sanitation hygiene
Co-Authors Achmad Rizaldi Ahmad Thobroni Akbar Aldy Cahya Putra Arbiter Khalida Bramanta Astuti, Dwi Hery Ayunda Wulan Permatasari Bimantara Hidayah Caecilia Pujiastuti Dimas Zidni Azizi Dyah Suci Perwitasari Erwan Adi Saputro Hellna Tehubijuluw Ika Nawang Puspitawati Indah Dwi Wahyuningsih ISNI UTAMI Jouvita Rosanti Kindriari Nurma Wahyusi Kindriari Nurmawahyusi Kusuma Wardhani Mas’udah Laili Mabrur Rohma Luckyana Aini Mega Rosilina Moch Akbar Munin Putra Mochamad Titus Maulana Moh Nur Fuadzi Moh. Nofianto Muhammad Faishal Ma’arif Nailul Hasan Nerissa Arviana Nur Aini Fauziyah Okta Maulidian Pardi Sampe Tola Putri Nur Wahyuni Radissa Dzaky Issafira Rayesha Yudha Irawan Reva Edra Nugraha Sakinah Sakinah Sani Silviya Nur Ridha SRIE MULJANI Syuaibatul Islamiyah Tahan Aprijal Simamora Widiya Ningrum Wiliandi Saputro Yogaswara, Rachmad Ramadhan Zuhriah Mumtazah