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All Journal Dinamik Pelita Perkebunan Program Kreativitas Mahasiswa - Teknologi JURNAL INTEGRASI PROSES R.E.M (Rekyasa Energi Manufaktur) Jurnal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan WIDYABHAKTI Jurnal Ilmiah Populer Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Abdimasku : Jurnal Pengabdian Masyarakat Nusantara Science and Technology Proceedings ABSYARA: Jurnal Pengabdian Pada Masyarakat International Journal of Eco-Innovation in Science and Engineering (IJEISE) Jurnal Warta Desa (JWD) Jurnal Pengbdian Teknik Mesin Aceh International Journal of Science and Technology Jurnal Akademika Kimia Environation (Environmental Engineering Journal of Community Dedication)
Ardika Nurmawati, Ardika
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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The Effect of Velocity Gradient and Camp Number on Solids Removal using Bio-Coagulant from Corbula faba Hinds Shells Nurmawati, Ardika; Wahyusi, Kindriari Nurma; Dewati, Retno; Hilmy, Jauhar
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 2 (2022): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i02.52

Abstract

process in water helps reduce solid content in water. The coagulant destabilizes water pollutants and helps flocs formation with the coagulation process. This paper studies the performance of chitosan bio-coagulant produced from Corbula faba Hinds shells. The velocity gradient and the Camp number of solids removal were also evaluated. The velocity and period of rapid mixing varied from 110 to 150 rpm, and the velocity gradient (G) was 181.2 to 288.5 s-1. The mixing period also ranged from 1 to 5 minutes. The highest TSS and TDS removal resulted in 140 rpm or 260.2 s-1 and 4 minutes of mixing. The residual TSS and TDS decreased with the increase of Camp Number until reaching a point and increased again afterward.
Pelatihan Customer Relation Management Skill pada Usaha Bakso Masyarakat Bluru Kidul Sidoarjo Nurmawati, Ardika; Saputro, Erwan Adi; Putra, Andre Yusuf Trisna; Saputro, Wiliandi
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 7, No 2 (2024): MEI 2024
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/ja.v7i2.2256

Abstract

Usaha bakso adalah usaha yang banyak dilakukan oleh masyarakat Bluru Kidul, Sidoarjo. Usaha bakso yang ditekuni oleh masyarakat hanya berfokus pada penjualan produk bakso semata seperti pengusaha bakso pada umumnya. Perihal mendirikan usaha, keberlangsungan dari suatu usaha juga dipengaruhi oleh banyak faktor, seperti faktor pembangunan hubungan dengan konsumen. Pembangunan hubungan dengan konsumen merupakan hal yang penting untuk dimiliki oleh setiap pengusaha agar bisa mendapatkan loyalitas dari konsumen serta menjaga keberlanjutan suatu usaha. Sementara itu, tidak banyak pengusaha bakso di daerah Bluru Kidul yang menerapkan pembangunan hubungan dengan konsumen dalam usaha baksonya. Dengan demikian, diperlukan kegiatan pengabdian kepada masyarakat Bluru Kidul yang berprofesi sebagai pengusaha bakso untuk menginisiasi proses pembangunan hubungan dengan konsumen pada usahanya. Berdasarkan kegiatan yang dilakukan, didapatkan informasi bahwa dalam membangun hubungan dengan konsumen, para pengusaha bakso memiliki kendala internal burupa adanya gap usia dengan konsumen, kurangnya nilai pembeda produk bakso dan kurangnya kemampuan berkomunikasi. Kendala tersebut dapat diatasi dengan berani memulai menerapkan materi yang sudah dibagikan, melihat kearifan lokal masyarakat setempat dan berlatih public speaking dari waktu ke waktu agar bisa membangun hubungan dengan konsumen yang lebih baik lagi.
OPTIMASI WAKTU DISTILASI AIR DAN RASIO BAHAN BAKU PADA EKSTRAKSI MINYAK ATSIRI DAUN SERAI DAPUR (Cymbopogon citratus) Novita Indahyani; Luky Natasha; Ardika Nurmawati; Erwan Adi Saputro
JURNAL INTEGRASI PROSES Vol 13, No 2 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i2.29086

Abstract

Serai dapur (Cymbopogon citratus) adalah tumbuhan yang dapat dimanfaatkan sebagai bahan baku minyak atsiri dengan aroma lemon yang kuat karena mengandung kadar sitral tinggi (44,3-91,4%) sehingga dinamakan lemongrass oil. Tujuan penelitian ini adalah membandingkan minyak atsiri yang didapat dengan mutu SNI 06-3953-1995 dan menentukan kondisi optimum rasio bahan terhadap pelarut dan waktu distilasi air pada rendemen minyak atsiri serta menentukan model persamaan dengan RSM pada software Design Expert 13. Penelitian ini menggunakan proses ekstraksi metode distilasi air selama 30, 60, 90, 120, dan 150 menit dengan rasio bahan dan pelarut sebesar 1:4, 1:8, 1:12, 1:16, dan 1:20 (g/ml). Daun serai dapur kering sebanyak 300 gram dilakukan pretreatment dengan proses ultrasonik selama 10 menit pada suhu 40°C dan frekuensi 40 kHz dengan akuades kemudian didistilasi hingga diperoleh minyak atsiri. Berdasarkan hasil penelitian, didapatkan rendemen tertinggi yaitu 1,2734% pada rasio bahan dengan pelarut 1:20 (g/ml) dan waktu distilasi air 120 menit. Hasil optimasi diperoleh pada kombinasi rasio bahan dengan pelarut 1:19,997 (g/ml) dan waktu distilasi air 131,941 menit dihasilkan rendemen sebesar 1,245% dan nilai desirability 1,000 pada model kuadratik. Dari hasil analisis minyak atsiri berwarna kuning pucat–kuning kecoklatan, densitas 0,8671-0,9803 g/ml, rendemen 0,3803-1,2734 %, indeks bias 1,4747, kelarutan dalam alkohol 1:2, dan kadar sitral 56%. Minyak atsiri daun serai dapur yang diperoleh hasilnya memenuhi mutu SNI nomor 06-3953-195.
Efficiency of Curing Oven in Increasing Powder Maturity in Powder Coating Process in Aluminum Extrusion Plant: Efisiensi Oven Curing dalam Meningkatkan Kematangan Powder dalam Proses Powder Coating pada Pabrik Aluminium Ekstrusi Pratama, Rendi Adi; Saputro, Wiliandi; Nurmawati, Ardika; Sunarti, A. R. Yelvia; Adi Saputro, Erwan
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 2 (2024): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i2.1702

Abstract

Powder coating adalah proses pelapisan logam dengan menaburkan serbuk pelapisan di atas benda yang dipanaskan, untuk meningkatkan kekuatan dan ketahanan permukaan. Oven curing digunakan untuk pematangan powder dengan udara panas dari burner. Bahan yang diperlukan adalah serbuk powder coating, profil alumunium, dan LNG. Analisa efisiensi menggunakan perhitungan neraca panas, melibatkan data seperti temperatur udara masuk/keluar, temperatur dinding, laju udara masuk, dan luas oven curing. Nilai efisiensi oven curing pada proses powder coating dihitung dari panas yang bersumber dari burner (2771,746 W), panas yang diserap oven curing (3464,683 W), dan panas yang keluar/hilang (692,936559 W), menghasilkan efisiensi sebesar 75%.
Development of Silica-based Materials from Natural Sources as A Green Catalyst for Biofuel Production Nugraha, Reva Edra; Aziz, Abdul; Sunarti, A.R Yelvia; Nurherdiana, Silvana Dwi; Mumtazah, Zuhriah; Sholeha, Novia Amalia; Nurmawati, Ardika; Islamiyah, Syuaibatul; Nandini, Atika; Saputro, Erwan Adi
Aceh International Journal of Science and Technology Vol 13, No 3 (2024): December 2024
Publisher : Graduate School of Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.13.3.40369

Abstract

Mesoporous silica is a versatile material characterized by its highly ordered nanoporous structure with pore diameters ranging from 2 to 50 nanometers. This unique structure provides a large surface area and volume, making mesoporous silica an excellent candidate for various applications in adsorption, drug delivery, catalysis, and environmental remediation. Mesoporous silica can be synthesized using commercial or natural silica precursors such as mineral clay and other natural sources. Promising alternative sources of silica for synthesizing mesoporous materials encompass a range of materials, including various clay minerals such as kaolin, rectorite, halloysite, montmorillonite, sepiolite, hectorite, bentonite, talc, muscovite, paragonite, palygorskite, and chlorite. Other natural sources like beach sand, geothermal sludge, and sepiolite also show significant potential for mesoporous material synthesis. However, these sources have not been extensively explored and warrant further investigation in the field. The mesoporous silica from natural sources has been widely used as a catalyst for biofuel production via hydrocracking, catalytic cracking, and deoxygenation reactions
Evaluasi Kinerja Cooling Tower CT-2211A-B Unit Utilitas Produksi IA PT Petrokimia Gresik Muchammad, Raka Selaksa Charisma; Nurmawati, Ardika; Saputro, Erwan Adi; Juwana, Krishna Rahmad; Handy, Febry Widiatniko; Pinandita, Indrawan
Dinamik Vol 30 No 1 (2025)
Publisher : Universitas Stikubank

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35315/dinamik.v30i1.9885

Abstract

Setiap industri membutuhkan air pendingin (cooling water) sebagai unit pendukung dalam proses produksinya, termasuk industri petrokimia yang memerlukan air pendingin (cooling water) agar proses produksinya dapat berjalan dengan lancar. Untuk meningkatkan serta menjaga penggunaan air pendingin (cooling water) , maka digunakan alat cooling tower yang berfungsi untuk me-recycle air kondensat menjadi air pendingin (cooling water) kembali. Penggunaan alat cooling tower ini dinilai sangat penting, sehingga diperlukan analisa evaluasi kinerja alat untuk mengetahui kondisi cooling tower dan mencegah kerusakan dikemudian hari. Evaluasi tersebut berdasarkan nilai efisiensi kerja serta termal cooling tower dan perhitungan neraca massa pada sistem cooling tower CT-22111 A-B. Analisa evaluasi ini dapat menjadi hal yang di pertimbangan oleh teknis pihak industri untuk melakukan perawatan lebih lanjut serta operasional. Dari Analisa data lapangan serta data pendukung didapatkan hasil aktual yang menunjukkan di mana cooling tower pada unit utilitas departemen produksi IA diperoleh sebesar 71% untuk desain dan 77% untuk aktual serta untuk efisiensi termal masih direntang 67% - 81% tidak terlalu berbeda dengan data desain untuk efisiensi termal. Dengan demikian, kinerja cooling tower menunjukkan bahwa masih beroperasi dengan cukup baik.
MAPPING POTENTIAL FISH PROCESSING SOURCES GLAGAH DISTRICT, LAMONGAN Syafitri, Miranda Dwi; Farafi, Nafisah; Mu'is, Yusup Fatkhul; Irawan, Rayesha Yuda; Kurniawan, Moh Nawawi; Saputro, Wiliandi; Saputro, Erwan Adi; Nurmawati, Ardika
Environmental Engineering Journal of Community Dedication Vol. 4 No. 2 (2024): Jurnal Environation
Publisher : Teknik Lingkungan Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Glagah District, located in Lamongan Regency, has a lot of potential that can still be optimized, one of which is fish processing. This area produces popular fish on the market and only becomes waste if not processed, such as small fish, fish with too many spines, and fish heads. This is the main concern in processing unsold fish as one of the main raw materials in the production of fish meal. Mapping fish processing sources aims to build and maximize fish production potential. The method used is a descriptive and qualitative method with a field survey to obtain an overview of the distribution points of fish processing sources. From the results of field surveys and mapping carried out, there are 196.2456 hectares, including swamps, rivers and reservoirs, with a production scale of around 125.4635 tons. Meanwhile, the results of aquaculture include fish ponds, rice fields, ponds, floating-net-cages, and step-net-cages, which cover an area of around 4,179.48 hectares with a production scale of 12,915.9608 tons. The use of fish includes flour, pellets, crackers, presto, and fish cake, which can add selling value. This can also be a way to reduce fish and increase the village's income.
Mass Balance of Hydrocarbons Fuel from Waste Cooking Oil and Plastic by Co-Pyrolysis Limbong, Fajar H.; Praja, Delphy Y. A.; Nurmawati, Ardika; Puspitawati, Ika N.; Saputro, Erwan A.
Jurnal Akademika Kimia Vol. 14 No. 3 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i3.pp132-137

Abstract

Indonesia has committed to climate change mitigation through a sustainable energy transition. Currently, the share of renewable energy in Indonesia’s energy mix only reaches 12 %. One type of renewable energy that the Indonesian government is focusing on is biofuel to reduce consumption and dependence on fossil fuels. Bio-oil produced through pyrolysis has the potential to be used as a biofuel. The chosen pyrolysis process is Co-Pyrolysis, which involves two or more feedstocks. In this study, the process was carried out using waste cooking oil (WCO) and HDPE waste as feedstocks. The process was conducted at 450°C for 30 minutes, with varying masses of both feedstocks. The data obtained were analyzed using mass balance and yield analysis to determine the optimal conditions for producing bio-oil as a hydrocarbon fuel. The optimal condition was found at a mass ratio of HDPE: WCO = 1:4, with a bio-oil yield of 78%. Under these optimal conditions, the conversion of HDPE plastic into heptadecane was 29.39%, and the conversion of oleic acid in waste cooking oil into heptadecane was 38.8%. This also serves as an initial step toward developing a pilot plant-scale process using HDPE plastic waste and waste cooking oil.
PENGENALAN PEMANFAATAN EKSTRAK SERAI WANGI SEBAGAI PESTISIDA ORGANIK DI DESA BOCEK KARANGPLOSO MALANG Nurmawati, Ardika; Puspitawati, Ika Nawang; Anggraeni, Ika Favia; Raditya, Dendy Wahyu; Pradana, Novan Sandhi; Saputro, Erwan Adi
ABSYARA: Jurnal Pengabdian Pada Masayarakat Vol 3 No 1 (2022): ABSYARA: Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/ab.v3i1.5844

Abstract

Bocek Village, located in Karangploso District, Malang Regency, is one of the villages known for its chili production. However, the production of chili plants in this village is often affected by diseases caused by pests such as the fungus Colletotrichum spp., which will cause anthracnose (Patek) disease. This disease can cause defects in chili, reducing the quality of chili production. The farmers have handled the handling by using chemical pesticides, which are considered less effective and harm the environment. One solution that can be used is to use extracts from the citronella to be used as organic pesticides. This community service activity aims to introduce organic pesticides with citronella oil as raw material to the Tri Rejeki farmers group in Bocek Village. The socialization activity was carried out using the lecture method with the material covering the introduction of pesticides, the difference between chemical and organic pesticides, extraction of essential oils with a simple method, and the production process of organic pesticides with citronella oil. An evaluation of the participants was also carried out through a questionnaire given before and after the socialization. After the socialization was conducted, participants understood more about organic pesticides and how to produce them
Co-Authors Abdul Aziz Adi Saputro, Erwan Afida Khofsoh, Afida Aissyah Lathifah Adriyanti Alfonsina Abat Amelenan Torimtubun, Alfonsina Abat Amelenan Anggraeni, Ika Favia Ariefandie Febrianto, Noor Arriza Novan Tahta Aunillah, Mohammad Arrizal Buditama Bayu Cezarridfalah, Bintang Dendy Raditya Djatmiko, Faiz Putra Dwi Hery Astuti Efendi, Elene Afrisia Erliyanti, Nove Kartika Erwan Adi Saputro Farafi, Nafisah Handy, Febry Widiatniko Hilmy, Jauhar Ika Favia Anggraeni Ika Nawang Puspitawati Irawan, Rayesha Yuda Juwana, Krishna Rahmad Kindriari Nurma Wahyusi Kirana Putri, Jesika Kurniawan, Moh Nawawi Limbong, Fajar H. Lucky Indrati Utami Luky Natasha Meisy Cruisyta Hutabarat Mu'is, Yusup Fatkhul mumpuni, Arah Guntur Setio Mutia Dhana Fridayanti, Mutia Dhana Najakha, Ellen Oktavia Hanim Nandini, Atika Novita Indahyani Panjaitan, Renova Pinandita, Indrawan Pradana, Novan Sandhi Praja, Delphy Y. A. Pratama, Arista Pratama, Rendi Adi Puspitawati, Ika N. Putra, Andre Yusuf Trisna Raditya, Dendy Wahyu Raka Selaksa Charisma Muchammad Ramjani, M Rifki Renova Panjaitan Retno dewati Reva Edra Nugraha Sani Saputro, Erwan Sholeha, Novia Amalia Silvana Dwi Nurherdiana Siswanto Sunarti, A. R. Yelvia Sunarti, A.R Yelvia Syafitri, Miranda Dwi Syuaibatul Islamiyah Wiliandi Saputro Zuhriah Mumtazah