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All Journal Jurnal Teknik Kimia Jurnal technoscientia Konversi Jurnal Teknologi dan Manajemen Industri Industri Inovatif : Jurnal Teknik Industri G-Tech : Jurnal Teknologi Terapan Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) JURNAL TEKNOLOGI TECHNOSCIENTIA JURNAL FLYWHEEL Journal of Sustainable Technology and Applied Science Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Dharma: Jurnal Pengabdian Masyarakat JASTEN (Jurnal Aplikasi Sains Teknologi Nasional Jurnal ATMOSPHERE
Harimbi Setyawati
Institut Teknologi Nasional Malang
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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OPTIMALISASI RESIN PENUKAR ION PADA PROSES DEMINERALISASI AIR TANAH Nugraha, Ivan; Arif, Muhammad Amrizal; Setyawati, Harimbi
jurnal ATMOSPHERE Vol. 4 No. 2 (2023): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v4i2.7888

Abstract

Air tanah memiliki karakteristik berbeda dengan kualitas air permukaan yang memiliki kandungan mineral cukup tinggi. Air demineral merupakan air yang kandungan mineralnya sudah hilang memiliki peranan penting dalam proses industri. Proses pengolahan air demineral dapat dilakukan dengan berbagai cara yaitu distilasi, reverse osmosis dan deionisasi. Pada proses deionisasi inilah proses pengolahan air menggunakan metode Ion Exchange. Metode yang digunakan pada penelitian ini adalah ion exchange. Resin yang digunakan untuk proses pembuatan air demineral yaitu resin kation MC-08 dan anion MA-12. Resin kation diaktivasi dengan menggunakan HCl dan resin anion diaktivasi menggunakan NaOH. Untuk mengetahui air tanah itu sudah berubah menjadi air demineral dilakukan pengukuran Total Dissolved Solid dan konduktivitas listrik sesuai dengan Standar Nasional Indonesia. Hasil penelitian menunjukkan nilai Total Dissolved Solids mencapai 0 ppm dan konduktivitas listrik 0 µS/cm pada variabel ketinggian resin 15 cm, debit air 2,5 liter per menit dan waktu operasi 35 menit.
PELATIHAN PEMBUATAN SEDIAAN SERBUK DI MASA PANDEMI DI LINGKUNGAN RT 07 RW 05 KELURAHAN ARJOSARI BLIMBING MALANG Minah, Faidliyah Nilna; Setyawati, Harimbi; Handaratri, Anitarakhmi; Muyassaroh, Muyassaroh
Dharma: Jurnal Pengabdian Masyarakat Vol. 3 No. 1 (2022): Mei
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/dlppm.v3i1.6331

Abstract

The Covid-19 pandemic has hit the world since January 2020, and until now the cases are still increasing. The impact is very global covering various aspects, covering all regions in the world including Indonesia and the city of Malang in particular. As a tourism city that is very superior, of course it is very hard to hit and reduce regional income. As a tourism city that has almost a thousand MSMEs (recorded in the Malang Cooperative Service) that supports the income of the city of Malang, it finally has to go out of business. The group of residents of RT 07 Rw 05, 25% of the population has affected MSMEs. There are those who reduce their business operations, reduce production, reduce employees and some even close their businesses. The lack of income coupled with the low productivity of the citizens adds to the various problems that arise during this pandemic. Coupled with the high prices of basic commodities, agricultural products such as vegetables, fruits, spices, therefore, training activities are needed that can boost the productivity and economy of the residents. This training activity for making powder preparations is expected to add insight to the residents, so that residents can meet their instant food needs independently and if possible they can commercialize the products they produce.
Penggunaan mesin produksi dan penerapan K3 untuk mengurangi resiko kecelakaan kerja pada UMKM Artiyani, Anis; Budiharso, Hery Setyo; Sari, Sanny Andjar; Anggorowati, Dwi Ana; Setyawati, Harimbi; Rahman, Nanik Astuti; Ashari, Mohammad Ibrahim
Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Vol. 5 No. 3 (2024)
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jp2m.v5i3.21876

Abstract

Kegiatan pengabdian kepada masyarakat dalam konteks Usaha Mikro, Kecil, dan Menengah (UMKM) di sektor manufaktur memiliki relevansi yang signifikan dalam mendukung perekonomian lokal. Salah satu contohnya adalah Bengkel Las Karmannaut yang berlokasi di Perumahan Citra Pesona Bumi Raya blok F5 no. 18. Untuk meningkatkan produktivitas dan keselamatan kerja di UMKM ini, Tim Pelaksana Pengabdian dari Institut Teknologi Nasional Malang telah menyelenggarakan kegiatan Workshop dan Pelatihan guna Peningkatan Pengetahuan tentang Penggunaan Mesin Produksi pada UMKM Bengkel Las. Tujuan kegiatan ini adalah untuk memberikan pelatihan kepada UMKM Bengkel Las Karmannaut tentang operasional penggunaan mesin bubut, teknik pemeliharaan mesin, serta kesadaran akan keselamatan kerja bagi para pekerja di Bengkel Las Karmannaut. Pelaksanaan kegiatan ini menggunakan metode Participatory Action Research (PAR) dan Foccus Grup Discussion (FGD) guna penyelesaian masalah yang dihadapi mitra pengabdian terutama tentang penggunaan dan pemeliharaan mesin bubut, serta penerapan K3 bagi UMKM Bengkel Las.Pelatihan mesin bubut menjadi penting sebagai investasi jangka panjang bagi pelaku usaha bengkel untuk meningkatkan keterampilan tenaga kerja, meningkatkan efisiensi operasional, dan tetap bersaing dalam industri manufaktur yang dinamis.Melalui pelatihan ini, diharapkan UMKM dapat mengoptimalkan proses produksi mereka secara efisien dan aman, sehingga berkontribusi positif terhadap pertumbuhan ekonomi lokal serta kesejahteraan masyarakat sekitar Kelurahan Kedungkandang.
PEMANFAATAN LIMBAH TONGKOL JAGUNG SEBAGAI BIOPLASTIK DENGAN PENAMBAHAN VARIASI SILIKAT (SiO2) DAN SORBITOL Setyawati, Harimbi; Alexander Marsen, Vinsen
jurnal ATMOSPHERE Vol. 6 No. 2 (2025): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v6i2.15333

Abstract

The issue of non-biodegradable plastic waste has driven the development of environmentally friendly bioplastics. This study aims to utilize corncob waste as a raw material for bioplastic production with the addition of varying amounts of silica (SiO₂) and sorbitol as a plasticizer. Corncobs were processed into starch and then mixed with sorbitol and silica in specific variations to produce bioplastics. The bioplastics were characterized by evaluating their thickness, tensile strength, elongation, biodegradability, and moisture content. The results showed that the addition of silica improved the mechanical strength of the bioplastic, while sorbitol enhanced its flexibility. The optimum formulation was obtained at specific concentrations of silica and sorbitol, producing bioplastics with physical and mechanical properties that meet biodegradable standards. In conclusion, corncob waste has potential as an environmentally friendly alternative material for bioplastics, with its quality further enhanced through the addition of silica and sorbitol.
SINTESIS DAN KARAKTERISTIK PUPUK ORGANIK LIMBAH TONGKOL JAGUNG DENGAN PENAMBAHAN KOMPOSISI DEDAK DAN EM4 Setyawati, Harimbi; Sari, Fitria Rekno
jurnal ATMOSPHERE Vol. 6 No. 2 (2025): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v6i2.15336

Abstract

This study aims to evaluate the effect of variations in the volume of EM4 bioactivator and the amount of bran on the characteristics of organic fertilizer made from corncob waste. The background of this study is the need for an alternative fertilizer that is environmentally friendly, affordable, and utilizes agricultural waste. The variations in the volume of EM4 used were 15 mL, 20 mL, and 25 mL, and the amount of bran was 5, 15, 25, 35, and 45 grams. The parameters analyzed included C/N content, nutrient content (N, P, K), water content, and pH, referring to the SNI 7763:2018 and SNI 7763:2024 standards. The results showed that the combination of EM4, bran, and fermentation time significantly affected the quality of organic fertilizer. Treatment with 35 grams of bran and 15 mL of EM4 for 30 days produced the highest nitrogen content of 0.53%, while the highest phosphorus and potassium contents of 0.64% and 0.82%, respectively, were obtained in the treatment of 25 mL of EM4 and 25 grams of bran for 30 days. The lowest C/N content of 20.51 was also achieved in this treatment, meeting the maximum SNI standard of 25. The water content of all treatments ranged from 2–3%, and the pH was in the range of 4–7, both in accordance with SNI standards. Thus, it can be concluded that increasing the amount of nutrients, bioactivator volume, and fermentation time play an important role in accelerating decomposition, increasing nutrients, and producing organic fertilizer that meets national quality standards
Characterization of Cassava Starch–Based Edible Film (Manihot esculenta) and Seaweed Na-Alginate with Variations in Drying Time Firdauza, Trustha Aurora; Putri, Widia Kristiana; Setyawati, Harimbi; Anggorowati, Dwi Ana
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8959

Abstract

Edible films are biodegradable and consumable packaging materials that protect food products from environmental influences. This study aimed to produce and characterize cassava starch–based edible films with sodium alginate from seaweed, glycerol as a plasticizer, and garlic extract as an antibacterial agent using the solvent casting method. The research variables included cassava starch mass (4, 5, and 6 g) and drying time (4, 9, 14, 19, and 24 hours). Film thickness, tensile strength, elongation, moisture content, solubility, and microbiological properties were analyzed. Results showed that starch mass and drying time significantly affected the physical and mechanical properties of the films. The optimum drying time was 14 hours, at which all samples met the Indonesian National Standard (SNI) for moisture content (10–<16%). The best performance was obtained with 6 g starch, producing films with a tensile strength of 5.034 MPa, elongation of 13.48%, and low microbial counts (4–9 cells/100 mL) with negative Escherichia coli, complying with SNI 2897:2008. The addition of garlic extract contributed to the films’ antimicrobial properties. Overall, the formulation demonstrates a balanced combination of mechanical, physical, and microbiological characteristics, providing a practical foundation for developing biodegradable cassava starch–based edible films for food packaging applications.
Co-Authors -, Solekah -, Solekah Ahmad Rifa'i, Andi Alexander Marsen, Vinsen Anggorowati, Dwi Anna Angreani, Firda Nur Anis Artiyani Anita Anitarakhmi Handaratri Arif, Muhammad Amrizal Ashari, Mohammad Ibrahim Bagas A. Jatyaraga Bagas A. Jatyaraga, Bagas Budiharso, Hery Setyo Dayal Gustopo Dhea Dwi Novitasari Dian Kurnia S. Dinda An Nisa Dinda Galuh Puspitaningrum Dita aulia, Dewi Dwi A. Anggorowati Dwi A. Anggorowati, Dwi Dwi Ana A Dwi Ana A Dwi Ana Anggorowati Erni Junita Erni Junita Sinaga Erni Junita Sinaga Erni Yunita, Erni Faidliyah Nilna Minah Fajriyatul , Fresti Firdauza, Trustha Aurora Galuh, Dinda Gustopo, Dayal Hastuti, Rakhmawati Indriani, Sri Iva Izatul Mila J, Kevin Jimmy Jimmy Josephine Vania Wisnurusnadia Julianus Hutabarat Krismantono, Mawan L.A, Salammia LA, ST Salamia Lalu Topan Sulistiyono Leonardo K. Atmadja Leonardo K. Atmadja, Leonardo Lisdayanti, Rahajeng M. Zamroni B. F. A Masfianis Rahayu, Alfickril Mawan Kriswantono Mona Riso S. MUYASSAROH Muyassaroh Muyassaroh Muyassaroh Muyassaroh Muyassaroh Nanik Astuti Rahman Nathania, Devona Nelly Budiharti Nisa, Dinda An Nugraha, Ivan Nur Handayani, Hetty Nur Hendri Wahyu Firdaus Nurwijayanti Priscilla Tamara Putri, Chrysant Arasati Putri, Widia Kristiana Rakhmawati Kriswantono Rini Kartika Dewi S., Dian Kurnia S., Mona Riso Salammia LA Sandy, Faradilla Sanny Andjar Sari Sanny Anjarsari Sari, Fitria Rekno Sari, Sanny Andjar Satria Y Sekar Arum Sari Sri Indriani Sriliani Surbakti Sriliani, Sriliani ST. Salamia LA Sudjana, Wayan Sumanto Wahyuni , Nani Wayan Sujana Wulandari, Luluk Sutri Yulianti, Erni Yunita , Erni Zahwa, Nadila