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All Journal Jurnal Teknik Kimia Jurnal technoscientia AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat J-MKLI (Jurnal Manajemen dan Kearifan Lokal Indonesia) Jurnal Penamas Adi Buana Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Buletin Profesi Insinyur G-Tech : Jurnal Teknologi Terapan Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) JURNAL TEKNOLOGI TECHNOSCIENTIA Journal of Sustainable Technology and Applied Science International Journal of Eco-Innovation in Science and Engineering (IJEISE) Journal of Multidisciplinary Applied Natural Science Journal of Mechanical Engineering, Science, and Innovation Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Jurnal ATMOSPHERE
Nanik Astuti Rahman
Institut Teknologi Nasional Malang
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 Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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THE INFLUENCE OF ADDING NUTRIENT ELEMENTS IN POC COMPOSITION ON ROOT AND LEAF GROWTH IN PAKCOY (Brassica rapa L.) PLANTS USING HYDROPONIC CULTIVATION SYSTEM Ady Dwi Tegar, Ahmad Nurul Hakim An Nasif; Sugiarto, Ady Dwi Tegar; Rahman, Nanik Astuti
jurnal ATMOSPHERE Vol. 4 No. 1 (2023): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v4i1.6759

Abstract

Planting with a hydroponic system is a technique for cultivating plants without using soil media, but instead using water as a medium for cultivating plants. So that planting with a hydroponic system can use narrow land. So a study was conducted with the aim of applying Liquid Organic Fertilizer (POC) with the Indonesian National Standard (SNI) in a hydroponic planting system by adding POC constituent nutrients to the growth of roots and leaves of mustard greens, by adding a dose POC concentration of 0%, 9%, 12%, and 15% by analyzing samples of 0, 7, 14, 21, 28, 35 days to obtain better growth of pakcoy vegetables. The best growth of pakcoy plant roots was obtained from a concentration of 15%, obtained a length of 18.75 cm. The best growth in leaf width of the oajcoy plant was obtained from a concentration of 0% or without POC, the leaf width was 5.75 cm.
PUPUK MULTINUTRIENT BERBASIS GEL DARI LIMBAH MONOKULTUR PROSES FERMENTASI Oktavian, Dio Ajeng; Iswono, Veronica Putri; Dinnastyar, Faishal Ahmad; Marsen, Vinsen Alexander; Retnowati, Dewi; Anggorowati, Dwi Ana; Rahman, Nanik Astuti
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.v4i2.8471

Abstract

Gel organic fertilizer is the result of liquid organic fertilizer that is converted from liquid to gel, which is produced naturally. This gel organic fertilizer is an additional material used to meet the nutrient needs of plants to increase better productivity. The source of gel organic fertilizer is not much different from liquid organic fertilizer. Where the material for making gel organic fertilizer can be obtained from agricultural residues, MSME industries, factory waste that has no selling value such as vegetable waste, cheese whey waste, and molasses. This study aims to determine the effect of variable thickening agents on gel fertilizer from various gel structure modifiers. The treatments are as follows: The fixed variable is the fermentation time of 14 days and the independent variable of gel structure modifiers including tapioca starch, Carbopol 94, and Aquakeeper Hydrogel. The results of this research show that the treatment of free variables has a very significant effect and gives the best results without involving auxiliary media such as heating.
PRODUKSI MINUMAN INSTAN ROSELA DENGAN PENGONTROLAN PENGAWET DAN KONDISI OPERASI Rahman, Nanik Astuti; Hudha, Mohammad Istnaeny; Anggorowati, Dwi Ana
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.v4i2.8478

Abstract

Rosella, a plant previously known as a flower, is now one of the plants that is often used as an object of research. Apart from simplicia, rosella is produced as a drink that has health benefits. Rosella production includes tea, jelly candy, instant drinks, and syrup. Roselle syrup production is carried out using process engineering, namely temperature and heating time. The addition of sugar was also intended to see its effect on preserving the syrup. The sugar added is varied at 1; 1.25; and 1.5 kg. In the syrup-making process, citric acid is added to enhance the taste. In this research, the heating temperature was carried out at the boiling temperature, with the heating time varying between 10 minutes, 15 minutes, and 20 minutes. Heating is also carried out at a temperature of 85 °C with a heating time of 30, 40, and 50 minutes. Laboratory analysis of the product is vitamin C analysis. To test consumer acceptance of the product, a hedonic test is carried out, which includes tests on taste, color, and structure (viscosity). The results obtained by this research were a syrup product with the largest vitamin C content, namely 25,251 mg/100 g, at a heating variation of 85 °C with a heating time of 50 minutes. Optimal sugar addition at 1.25 kg
The Effect of Solvent and Amine Concentration on the Modification of Silica Sand Waste by Grafting Method as an Adsorbent Raharjanto, Dominica Edora Stella; Anggorowati, Dwi Ana; Rahman, Nanik Astuti
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7718

Abstract

Industrial waste is all types of waste materials or residual materials originating from the results of an industrial process. One of the industrial wastes in solid form is silica sand waste from the sandblasting process which has the potential to be used as a source of silica for adsorbents. This experiment is conducted to determine the type of solvent and the best addition volume of APTES in silica modification using amine (APTES). The process used in this experiment is a grafting process, where silica goes through a reflux process with solvents and APTES so that the amine groups attach to the surface of the modified silica. The results of the experiment is analysed using TGA and FTIR, and shows that the most optimal addition volume of APTES is 5 mL with the best types of solvents being ethanol and toluene solvents with the amount of amine loading contained in the modified silica being 1,9430 and 5,2552 mmol g aminopropyl/gram silica, respectively, but not in water solvents. The results of this study shows a successful APTES grafting of modified silica which can be used as an adsorbent for CO2 capture.
Rancang Bangun Aplikasi Pelaporan Koperasi Wanita Bhakti Ibu Kota Malang Laksmana, Dimas Indra; Rahman, Nanik Astuti; Hudha, Muhammad Istnaeny; Minah, Faidliyah Nilna
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 2 No 2 (2018): Agustus
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v2i2.1275

Abstract

Statute Cooperative and Koperasi Wanita Bhakti Ibu is prepare accountability report, as well as submission of work plan and budget plan of expenditure of cooperative expenditure at Rapat Anggota Tahunan (RAT) Forum. Presentation of accountability report in RAT which is a forum for sharing is expected to give member's opportunity to objectively and constructively assess the existence and development of cooperative as a whole, in the field of organization, management, capital, business and other activities. The latest financial reports, therefore need improvement and innovation by creating a computerized reporting application to simplify and mitigate work and minimize errors in reporting figures. Research method used to analyze system on Koperasi and design system to cooperative. System analysis purpose is tobe able identify and evaluate problems that occur and expected needs, so it can be proposed improvement. After build application, resulted conclusions: (1) Based on trial, application run effectively, minimize errors in performing data storage and facilitate data search and transactions more quickly and accurately; (2) Based on trial, application capable reports of transaction or financial administration, according to user current desire.
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.
Pengolahan Limbah Sayuran Menjadi Pupuk Organik Cair dengan Metode Desain Partisipatori di Desa Sumberejo Batu Rahman, Nanik Astuti; Hudha, Mohammad Istnaeny; Dewi, Rini Kartika; Anggorowati, Dwi Ana; Minah, Faidliyah Nilna
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2021: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.298 KB)

Abstract

Limbah pertanian di Desa Sumberejo Batu, berupa sisa sayuran dari golongan kubis, daun kol, selederi, andewi dan sawi mencapai kuantitas hingga 5 ton per hari. Perilaku masyarakat yang belum sadar akan bahaya bencana yang diakibatkan memberikan dampak yang cukup luas mengingat daerah Batu merupakan daerah Hulu yang sangat mempengaruhi 24 daerah pertanian di bawahnya. Limbah sayuran tersebut dihasilkan dari tiga masalah besar limbah yaitu 1) tercampurnya sisa sayuran dengan zat kimia akibat pemakaian pupuk kimia yang menyebabkan kerusakan tanah dan bau tidaka sedap; 2) usia produk (basah) yang pendek dan terjadi over stock saat panen raya; dan 3) sulitnya melakukan mitigas pencemaran dan tidak ada parameter target capaian pengolahan limbah. Berdasarkan hasil analisa lapangan maka pada penelitian ini di fokuskan pada pengolahan limbah sayuran menjadi pupuk organik cair. Pemilihan metode penangan masalah limbah pertanian yang ada Desa Sumberejo ini dirancang dengan desain partisipatory, artinya pengolahan limbah dilakukan bersama-sama dengan masyarakat sehingga ada keterlibatan dan tanggungjawab dari masyarakat untuk mengendalikan pencemaran lingkungan akibat limbah pertanian yang selama ini belum ditangani secara komprehensif. Pupuk cair organik yang dihasilkan mempunyai karakteristik yang sesuai dengan SNI Pupuk cair. Unsur hara yang dibutuhkan tercukupi baik secara makro maupun mikro nutrien. Unsur NPK total pupuk cair yang dihasilkan adalah 2 – 3,7%, menggunakan kondisi proses fermentasi anaerob selama 21 hari.
Tailoring the Adsorptive Efficiency and Pore Characteristics of Silica through Solvothermal Treatment Assisted by Cetyltrimethylammonium Bromide (CTAB) Timu, Fransiska Altrima Key; Rahman, Nanik Astuti
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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

Abstract

Silica is a porous material widely utilized across various fields. One of the potential sources of silica is sandblasting waste, which contains more than 90% silica. This study aims to investigate the influence of Cetyl Trimethyl Ammonium Bromide (CTAB) concentration and solvothermal duration on producing silica with enhanced adsorption capacity and porosity. The independent variables in this research include CTAB surfactant concentrations of 0.1, 0.2, 0.3, 0.4, and 0.5%, as well as solvothermal processing times of 8, 10, 12, 14, and 16 hours. The optimal result was obtained with the addition of 0.5% CTAB and a solvothermal duration of 16 hours, in which SEM-EDX analysis revealed large visible pores formed by aggregates of fine particles arranged in a homogeneous structure. The adsorption capacity, using a methylene blue concentration of 30 mg, was found to be 27.1822 mg/g. Based on the study on the Enhancement of Adsorption Capacity and Porosity of Silica Using Cetyl Trimethyl Ammonium Bromide (CTAB) via the Solvothermal Method, it can be concluded that both adsorption capacity and porosity are influenced by the addition of CTAB, solvothermal duration, and the concentration of methylene blue used in the adsorption capacity test.
Co-Authors -, Solekah -, Solekah Ady Dwi Tegar, Ahmad Nurul Hakim An Nasif Aladin Eko Purkuncoro Anis Artiyani Anita Ashari, Mohammad Ibrahim Atiqotuzzummah Atiqotuzzummah, Atiqotuzzummah Budiharso, Hery Setyo Christina Astutiningsih Darmayani, Satya Dimas Indra Laksmana Dinnastyar, Faishal Ahmad Dwi Ana Anggorowati Eky Novianarenti Elvianto Dwi Daryono Endah Kusuma Rastini Erlinda Ningsih, Erlinda Faidliyah Nilna Minah Febrina, Wetri Harimbi Setyawati Iryanti Fatyasari Nata, Iryanti Fatyasari Iswono, Veronica Putri Jimmy Khoiriyah, Aldina Fitri Lalu Mustiadi Maranatha Wijayaningtyas Marsen, Vinsen Alexander Masrurotul Ajiza Meri, Meri Mohammad Istnaeny Hudha Muhammad Rio Hendratama Oktavian, Dio Ajeng Prastiwi, Asya Wisma Raharjanto, Dominica Edora Stella Ratri, Theofilia Medya Retnowati, Dewi Rini Kartika Dewi Rizky Meidiana Faradila Rosyanti, Lilin Sanny Andjar Sari Siswi Astuti Sugiarto, Ady Dwi Tegar Supiati Supiati Tias Eka Rahmawati Timu, Fransiska Altrima Key