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Reva Edra Nugraha
Chemical Engineering, Enginering Faculty, Universitas Pembangunan Nasional “Veteran” Jawa Timur. Jalan Raya Rungkut Madya Gunung Anyar, Surabaya, Indonesia, 60249
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The Utilization of Lapindo Mud Waste for Aluminium Sulfate Production Lucky Indrati Utami; Tahan Simamora Rizaldi; Kindriari Nurma Wahyusi; 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.v2i02.40

Abstract

The Lapindo mudflow disaster in East Java Province, or also known as LUSI (LUmpur “mud”-SIdoarjo) has become spectacular longest ongoing disaster in recent memory since 2006. The utilization of volcanic Lapindo mud could be the promising solution to prevent further environmental damage. The chemical composition of Lapindo mud contained of 44.1% SiO2, 23.7% Fe2O3, 13% Al2O3, 7.02% CaO, 5.35% MoO3, 2.53% K2O, 1.84% TiO2 and 0.7% Na2O. Aluminium sulfate (Al2(SO4)3) or “alum” have been widely used as coagulation compound in water treatment, paper and textiles industry. Aluminium sulfate can be synthesized from aluminium oxide (Al2O3) from Lapindo mud with acidic solutions (H2SO4). The aim of this work was to synthesize aluminum sulfate from Lapindo mud by using extraction process. The impact of H2SO4 concentration and heating time to the production of aluminium sulfate have been investigated. The results showed that the aluminium sulfate can be synthesized from Lapindo mud by using H2SO4. Based on XRF analysis, the variation of heating time and H2SO4 concentration affect the aluminium sulfate conversion. The increasing of heating time and H2SO4 concentration directly enhance the conversion until reach the optimum condition. The optimum condition for aluminium sulfate synthesis from Lapindo mud (75.78% conversion) was found to be 90 min for heating time with H2SO4 concentration of 80%
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.
Mini-Review: Syngas Production Via Partial Oxidation of Methane Reaction and Its Potential Catalyst Silvana Dwi Nurherdiana; Reva Edra Nugraha; Rachmad Ramadhan Yogaswara; Hamzah Fansuri
Akta Kimia Indonesia Vol 6, No 2 (2021)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v6i2.10720

Abstract

Methane as a light gas was generally found in natural gas which was burned freely to gain a high quality of petroleum. This action truly impacted a worst condition in nature, namely greenhouse effect. This brief review described fundamental theory of the important process in methane conversion from natural gas into value-added chemical such as syngas (CO+H2). The methane conversion reaction was commonly divided into direct and indirect reaction. The indirect reaction such as partial oxidation of methane was mostly chosen due to the intermediate product (syngas) can easily generate many raw materials of petrochemicals. This paper also described a potential catalyst to be applied which in heterogeneous type such as perovskite oxide, metal oxide and zeolite.
Diversification of Processed Onion Products as the Iconic Product in Darurejo Village, Jombang Regency Silvana Dwi Nurherdiana; Reva Edra Nugraha; Rachmad Ramadhan Yogaswara; Handi Ramadhan; Muhammad Hakam; Wahyu Arif Dharmawan
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2450

Abstract

Darurejo Village, Plandaan District, Jombang is an onion horticulture area where the highest productivity level is in the Jombang Regency of 3990 kw and 38 kw/ha. However, the onion sales are not optimal so farmers often experience losses. Therefore, we service activities regarding the processing and management to enhance the effectiveness. Coinciding with the COVID-19 pandemic and the enactment of the government's decision to Implement Emergency Community Activity Restrictions (ECAR) the implementation of counseling is carried out online. The online activity was carried out through the WhatsApp Group, on Saturday, July 31, 2021, from 11.00-14.00 WIB, which was attended by 25 village cadres. This outreach activity was carried out by providing 2 materials, including basic knowledge of onion and the resulting products such as fried onion, onion baceman, and onion powder which have great potential to be widely sold, and the introduction of automatic peeling machines to increase the quantity and quality of productions through online and offline meeting on August 28, 2021. It is hoped that the community will be able to process and manage the onion shallot potential products.
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.
PENGEMBANGAN PENGGILING DAGING DENGAN BAHAN STAINLESS STEEL FOOD GRADE DALAM MENINGKATKAN DAYA SAING PRODUK KALDU UMKM Nur Aini Fauziyah; Reva Edra Nugraha; Ratna Yulistiani; Kusuma Wardhani Mas’udah; Primasari Cahya Wardhani; Mohammad Iqbal; Mei Syella Kurnia Putri Cahyo; Dona Avrilia Kristanti
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 6, No 3 (2022): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v6i3.10438

Abstract

ABSTRAKPersiapan peralatan foodgrade merupakah salah satu hal yang penting dalam menjaga kualitas produk pangan yang sehat dan bebas dari kontaminasi secara kimiawi, biologi, maupun yang lainnya. Tujuan dari pengabdian ini adalah untuk memebrikan wawasan kepada masyarakat tentang pemanfaatan fasilitas yang sesuai standar kesehatan pangan wajib dipenuhi, terutama pada Usaha  Mikro  Kecil  dan  Menenga (UMKM) yang bergerak pada bidang pangan. Kerjasama antara insan Dikti dan Dunia Industri (UMKM) menjadi salah satu terobosan untuk akselerasi hilirisasi teknologi. Salah satu yang dilakukan pada kegiatan pengabdian ini adalah kerjasama dengan CV. Pawon Ibun dengan mengembangkan alat penggiling daging berbahan stainless steel sehingga lebih aman (foodgrade). Metode yang digunakan dalam kegiatan pengabdian ini adalah bantuan pengadaan alat alat penggiling daging dari bahan stainless steel dalam menunjang proses produksi kaldu sehat pada CV. Pawon Ibun dan dilanjutkan dengan demo penggunaan alat. Kegiatan demonstrasi dan praktek yang dilakukan dapat dikatakan berhasil karena 15 orang (100%) pelaku UMKM yang mengikuti demonstrasi dapat melakukan proses penggilingan daging dengan baik hingga pada tahap pembersihan alat giling. Selain itu, peningkatan pengetahuan karyawan CV. Pawon Ibun mencapai 75 % dalam hal pentingnya menggunakan peralatan yang terstandar dan aman terhadap produk makanan. Sehingga kegiatan kegiatan ini diharapkan dapat berdampak secara nyata dalam meningkatkan daya saing industri. Kata Kunci: pendayagunaan; foodgrade; kaldu; alat giling. ABSTRACTPreparation of foodgrade equipment is one of the important things in maintaining the quality of food products that are healthy and free from chemical, biological, and other contamination. Therefore, the use of facilities that are in accordance with food health standards must be met, especially for UMKM engaged in the food sector. The collaboration between Dikti personnel and the Industrial World (UMKM) is one of the breakthroughs for accelerating the downstream technology. One of the activities carried out in this service activity was a collaboration with CV. Pawon Ibun by developing a meat grinder made of stainless steel so that it was safer (food grade). This community service was carried out by developing a meat grinder made of stainless steel in supporting the healthy broth production process at CV. Pawon Ibun and accompanied by a demo of using the tool. The demonstration activities and practices carried out can be said to be successful because 15 people (100%) of MSME actors who participated in the demonstration were able to carry out the meat grinding process well up to the stage of cleaning the grinder. In addition, the increase in employee knowledge of CV. Pawon Ibun reached 75% in terms of the importance of using standardized and safe equipment for food products. So that these activities were expected to have a real impact in increasing the competitiveness of the industry. Keywords: utilization; foodgrade; broth; grinder.
Variation of Bio-Activators (EM-4 and Leri Water) in Processing Household Organic Waste into Organic Compost Ready to Use in Gebang Putih Surabaya Nur Aini Fauziyah; Reva Edra Nugraha; Kindriari Nurma Wahyusi; Mei Syella Kurnia Putri Cahyo; Mohammad Iqbal
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.2022.2710

Abstract

The simple organic waste processing in this journal is a follow-up to the previous activities. By using a concise method that did not take up land, the people of Gebang Putih Village have been able to process simple organic waste into ready-to-use compost. The method used in making ready-to-use compost was to stack brown and green waste in layers and then doused it with two variations of bio-activators, i.e., leri water (rice washing water) and EM4. After the 18th day, the resulting fertilizer showed dry characteristics, odorless, and had a neutral pH. An interesting result in this study was that the compost with the addition of leri water (pH=7) began to decompose on the 9th day. However, in the compost with the addition of EM4, on the 6th day, the compost had decomposed evenly. However, the final results of the compost produced proved that leri water was quite effective as an alternative bio-activator, a substitute for EM4.
Quality Control to Incompatibility of Midsole Products with ISO 9001:2008 Analysis Isna Nugraha; Restu Hikmah Ayu Murti; Tasya Ambar Aimia; Muhammad Abdus Salam Jawwad; Bekti Nugrahadi; Nur Aini Fauziyah; Reva Edra Nugraha
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.2022.2717

Abstract

The midsole is an inseparable component of the shoe. For this reason, midsole production must be fulfilled so that the needs of shoe manufacturers to produce shoes can be met according to the target. Midsole Jepara factory is one of the work units of PT. X is a company that processes Compound raw materials into Midsole as its main product. ISO 9001:2008 is an international standard for quality management systems. ISO 9001:2008 establishes requirements and recommendations for the design and assessment of a quality management system. It is expected that the products produced from an international quality management system, will be of good quality (standard). Based on this, this study will discuss the quality assurance contained in a manufacturing company to prevent the absence of things that cause product defects. In analyzing the implementation of ISO 9001:2008 used is the analysis of P control maps, fishbone diagrams, and Pareto diagrams. In controlling the midsole products it produces, PT X applies a policy regarding product quality standards, namely using the PDCA (Plan Do Check Action) quality standard.
Quality Control Analysis of Woven Fabric Production in the Weaving Process in XYZ with Total Quality Management Method Isna Nugraha; Restu Hikmah Ayu Murti; Firza Ramadhan; Muhammad Abdus Salam Jawwad; Bekti Nugrahadi; Nur Aini Fauziyah; Reva Edra Nugraha
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.2022.2742

Abstract

XYZ Village is an industrial village that produces woven fabrics. Failure in the production process is something that must be traced to the cause so that it can be used as a basis for improving product quality. Total Quality Management (TQM) is an approach to running a business that tries to maximize the competitiveness of an organization through continuous improvement of products, services, people, processes, and the environment. This study was conducted to identify potential causes of failure and improve the quality of woven fabrics in the weaving process in XYZ Village with the TQM method approach. Based on the calculations that have been done, it was found that there are two valid variables and two other invalid variables because the value of r-count > r-table, namely the variable color is less bright and the color is mixed. Then the main factors that cause the quality of woven fabrics to decrease and result in production failures on woven fabrics are inappropriate battens and also color spots on woven fabrics.
Templated growth formation of mesoporous silica materials: a soft-hard template approach Reva Edra Nugraha; Nur Aini Fauziyah; Guardiola Rosa Wira
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.2022.2747

Abstract

Mesoporous silica is continuously raising in popularity due to its excellent and unique properties, such as customizable pore, surface shape/morphology, large pore volume, and ease of functionalization for wide applications like catalysis, energy, environment, and biomedical areas. In the templated growth synthesis, a template acts as a mesostructure-directing agent to produce hollow porous structures in silica frameworks. Templates can be divided into "hard" and "soft" templates. While soft templates are typically in a fluid-like condition and hard templates are typically solid-state materials with specific morphology and structure. In this minireview, we summarize the synthesis method of mesoporous silica with a soft-hard template approach (template-assisted method).
Co-Authors A.R Yelvia Sunarti Abdul Aziz Abdullah, Affan Zein Adinda Yufriza Afandi, Fadila Ardiansyah Aishah Abdul Jalil Al Muttaqii, Muhammad Aldy Cahya Putra Amelia Putri AR Yelvia Sunarti Ardika Nurmawati, Ardika Arifin, Ahmad Zaenal Awanda Winar Fitriana Ayunda Wulan Ayunda Wulan Permatasari Azaria, Atha Nur Bekti Nugrahadi Bimantara Hidayah Damayanti, Nabilla Dewi, Aisha Andini Indira Didik Prasetyoko Ditta Kharisma Yolanda Putri Dona Avrilia Kristanti Dyah Suci Perwitasari Erwan Adi Saputro Euis Nurul Hidayah Fadhila, Dheytra Akhnaz Namira Fadhilah, Rahadyan Itsar Fensia Analda Souhoka Firza Ramadhan Guardiola Rosa Wira Hamzah Fansuri Handi Ramadhan Hayu Nirmala, Cipta Tungga Hellna Tehubijuluw Hellna Tehubijuluw Husna Wardati Ima Putriana Isna Nugraha Jouvita Rosanti Jovita, Stella Kindriari Nurma Wahyusi Kusuma Wardhani Mas’udah Kusumawati, Yuly Lenny Marlinda Lucky Indrati Utami Lucky Indrati Utami Luckyana Aini Luckyana Aini Marbun, Maja Pranata Mei Syella Kurnia Putri Cahyo Mei Syella Kurnia Putri Cahyo Meta Fitri Rizkiana Moch. Harits Pradana Misbach Mohammad Iqbal Mohammad Iqbal Muhammad Abdus Salam Jawwad Muhammad Hakam Najmi, Naufal Fikri Nandini, Atika Nerissa Arviana Nerissa Arviana Nugroho, Sutra Amelia Nur Aini Fauziyah Nuraffandy, Achmad Naufal Nurfauzi, Muchamad Lutfi Nurhediana, Silvana Dwi Peri Oktiarmi Putri, Alisyah Ananda Qonita Awliya Hanif Ratna Yulistiani Restu Hikmah Ayu Murti Reswara, Rasendriya Putra Riesnawa, Yurdien Dellan Sakinah Sakinah Salshabila, Kirana Aurelia Sani Sholeha, Novia Amalia Silvana Dwi Nurherdiana Sintha Soraya Santi SRIE MULJANI Subagyo, Riki Sudibyo Sudibyo Sugeng Priyanto, Sugeng Sunarti, A.R Yelvia Susianto, Mordekhai Yosep Syuaibatul Islamiyah Tahan Simamora Rizaldi Tahan Simamora Rizaldi Tasya Ambar Aimia Utama, Shanita Agitiya Utami, Diana Inas Wahyu Arif Dharmawan Wahyudi, Bambang Wardhani, Diana Silvia Rahma Wicaksono, Akhmad Permadi Witri Wahyu Lestari yati, indri Yogaswara, Rachmad Ramadhan Zhafarina, Safira Cecilia Zuhriah Mumtazah