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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 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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Pengolahan Limbah Sayuran Menjadi Pupuk Organik Cair dengan Metode Desain Partisipatori di Desa Sumberejo Batu Nanik Astuti Rahman; Mohammad Istnaeny Hudha; Rini Kartika Dewi; Dwi Ana Anggorowati; Faidliyah Nilna Minah
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.
PELATIHAN PEMBUATAN PUPUK ORGANIK CAIR DENGAN BIOAKTIVATOR ALAMI DARI LIMBAH SAYUR DI DESA SUMBEREJO KOTA BATU: Pelatihan Pembuatan POC di Sumberejo Batu Istnaeny Hudha Mohammad; Nanik Astuti Rahman; Rini Kartika Dewi; Elvianto D. Daryono; Jimmy
Jurnal Penamas Adi Buana Vol 6 No 02 (2023): Jurnal Penamas Adi Buana
Publisher : LPPM Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/penamas.vol6.no02.a6772

Abstract

Sumberejo merupakan salah satu desa di Kota Batu yang memiliki potensi dibidang pertanian. Sekitar tahun 2020 dicanangkan sebagai desa wisata petik sayur. Untuk mewadahi dan memfasilitasi kegiatan para petani dibentuklah Badan Usaha Milik Desa (Bumdes) Barokah. Meningkatnya permintaan sayur dipasaran menuntut produksi pertanian juga harus ditingkatkan. Konsekuensinya kebutuhan pupuk akan bertambah. Selama ini kebanyakan menggunakan pupuk kimia dan dalam waktu yang panjang. Hal ini akan menimbulkan ketidakseimbangan unsur hara dalam tanah. Untuk itu diperlukan suatu tindakan guna mencari solusi guna memperbaiki unsur hara di lahan pertanian tersebut. Salah satunya adalah memanfaatkan limbah sayur dan limbah organik lainnya sebagai bahan pembuatan pupuk organik cair. Pelatihan ini melibatkan mahasiswa yang terlibat dalam program Abdimas 2022 sebanyak 12 mahasiswa. Dimana mereka akan memberikan tahapan pelatihan mulai dari pemberian materi pelatihan dan praktek langsung pembuatan pupuk organik cair (POC). POC dibuat dari limbah sayur, limbah keju (whey) dan bioaktivator (Molika) dan ember kapasitas 20 L. Pelatihan ini diikuti oleh anggota BUMDES sebanyak 15 orang, 3 dosen pendamping lapangan. Hasil kegiatan pelatihan ini adalah meningkatnya pengetahuan dan keterampilan anggota Bumdes untuk memanfaatkan limbah sayur untuk membuat pupuk organik cair.
Strategi pembelajaran Bahasa Inggris pada murid Sekolah Dasar (SD) Masrurotul Ajiza; Nanik Astuti Rahman
Jurnal Komunitas : Jurnal Pengabdian kepada Masyarakat Vol 5, No 2: Januari 2023
Publisher : Institut Ilmu Sosial dan Manajemen Stiami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31334/jks.v5i2.2842

Abstract

Di Indonesia, Bahasa Inggris merupakan bahasa asing yang tidak digunakan dalam komunikasi sehari-hari. Hal ini tentu menjadi salah satu kendala bagi para siswa untuk dapat menghafal dan memahami bahasa Inggris itu sendiri dikarenakan kurangnya intensitas penggunaannya. Pemberian pembelajaran Bahasa Inggris untuk siswa Sekolah Dasar (SD) dinilai baik karena mereka masih berada pada usia yang sangat mudah dalam menerima dan menghafal informasi Bahasa. Dikarenakan peneliti telah melakukan kegiatan pengabdian kepada masyarakat (abdimas) di Perum Kresna Asri ditahun sebelumnya, maka beberapa data mengenai permasalahan yang ada telah didapatkan, yakni antara lain: (1) Siswa yang mengikuti kegiatan abdimas sangatlah beragam, mulai dari tingkat kelas maupun ketersediaan pembelajaran Bahasa Inggris di sekolah masing-masing (2) motivasi siswa dalam  mengikuti pelajaran (3) Secara umum, kemampuan Bahasa Inggris siswa SD yang berada di lingkungan Perum. Kresna Asri ini masih dikategorikan kurang. Oleh karena itu, peneliti akan melaksanakan kegiatan abdimas dengan judul “Pembelajaran Bahasa Inggris dengan 3 Metode Untuk Siswa Sekolah Dasar (SD).”  Adapun ketiga metode yang akan diberikan antara lain: Grammar Translation Method (GTM), Audio Lingual Method, dan Total Physical Response. Tujuan dari pemberian pembelajaran dengan memberikan keempat metode diatas adalah untuk mendapatkan metode pembelajaran terbaik diantaranya untuk kemudian bisa meningkatkan kemampuan Bahasa Inggris siswa secara khusus, dan metode terbaik bisa digunakan untuk pengajaran Bahasa Inggris untuk siswa SD secara umum. Dari kegiatan abdimas yang dilaksanakan menunjukkan bahwa metode Audio lingual dan TPR dinilai bisa meningkatkan minat/ motivasi siswa dalam belajar Bahasa Inggris.
DEKOMPOSER ALAMI BERBAHAN LIMBAH SAYUR DENGAN PENAMBAHAN WHEY KEJU SEBAGAI SUMBER PROTEIN anita; Rizky Meidiana Faradila; Muhammad Rio Hendratama; Nanik Astuti Rahman
jurnal ATMOSPHERE Vol. 3 No. 1 (2022): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v3i1.4800

Abstract

Uncontrolled accumulation of vegetable waste can have a negative impact that will affect various aspects of life, either directly or indirectly. Many studies have used vegetable waste as a raw material for making fertilizers by adding EM4 as a source of decomposing microorganisms. EM4 as a source of microorganisms can be replaced with local microorganisms from a mixture of cabbage waste, cheese whey, molasses, rice bran, and coconut water. For this reason, this study uses vegetable waste, namely cabbage with variations in fermentation time and the ratio of cabbage waste and whey cheese as a natural decomposer from a mixture of vegetable waste and cheese whey which is processed by fermentation so that it can be used as a source of microorganisms in the manufacture of liquid organic fertilizer (POC). This study aims to study the effect of fermentation time and the effect of the ratio on the process of making natural decomposers from cabbage vegetable waste and cheese whey. This study uses a ratio of 30:70; 20:80; 10:90; 0:100 on a mixture of cheese whey and cabbage vegetable waste (WLs) with fermentation times of 7, 14, and 21 days. From the analysis of nitrogen levels, the highest yield was found at a ratio of WLs 20:80 of 1.54 with a fermentation time of 14 days, while analysis of phosphorus levels obtained the highest results with a ratio of WLs 10:90 of 0.77 at a fermentation time of 21 days. potassium obtained the highest yield with a ratio of WLs 30:70 of 0.41 at 21 days of fermentation. While the results of identification and analysis of the number of microorganisms showed that the manufacture of a natural decomposer solution with a fermentation time of 7 days contained 1 type of isolated lactic acid bacteria, namely Bacillus subtilis, and there were no pathogenic bacteria such as E. coli and salmonella. WL variable. 20:80, which is 15 × 104 colonies/100 mL.
POTENTIAL OF CURCUMA LONGA EXTRACT TO THE GROWTH OF SALMONELLA STAPHYLOCOCCUS AND BACILLUS SUBSTILIS ON PELOR EXTRACT Astuti, Siswi; Rahman, Nanik Astuti; Rastini, Endah Kusuma
Journal of Sustainable Technology and Applied Science (JSTAS) Vol. 1 No. 2 (2020): Journal of Sustainable Technology and Applied Science, November 2020
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Institut Teknologi Nasional (ITN) Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jstas.v1i2.3020

Abstract

People with autism are sensitive to milk protein (casein), gluten, and sugar. These foods can cause an increase in aggressive behavior, crying, anger, stress and depression, while also able to increase digestive disorders, allergies and neurobiological disorders in people with autism. Trials have been carried out on several autistic people by providing food based on MOCAF modified with Centella Asiatica extract with positive results. Children are more focused, more communicative and the symptoms of stress and depression decrease. The weakness is that it can still lack the necessary vitamins and minerals so that it is continued with the manufacture of supplements made from Centella Asiatica and egg extracts (PELOR). Those contain vitamins and minerals needed by people with autism and do not form new compounds but still contain microbes. The research was done by giving various concentrations of 5%, 10%, 15%, 20%, 25%, 30% and 35% curcuma longa in pelor extract which is expected to reduce microbial growth. The results concluded that PELOR extract with the addition of 20% curcuma longa can kill the growth of harmful microorganisms of Salmonella and Staphylococcus but it is still not effective in inhibiting the growth of Bacillus substilis. In the addition of 20% curcuma longa, there was Bacillus substilis with a total of 3 x103 colonies/100ml or an NPN value of 0.03 has met the SNI 7388: 2009 standard. Therefore, it was concluded that it was safe to potentially be a balanced nutritious supplementary food needed by people with autism.
Calculation Study of Double Pipe Type Heat Exchanger in LNG Plant Pre-Design with Capacity 250 tons/hour Novianarenti, Eky; Ningsih, Erlinda; Rahman, Nanik Astuti
Journal of Mechanical Engineering, Science, and Innovation Vol 4, No 1 (2024): (April)
Publisher : Mechanical Engineering Department - Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2024.v4i1.5164

Abstract

In industrial processes, heat exchangers are very important tools and are always needed. Heat exchangers can be used to increase and decrease the temperature. The most widely used type of heat exchanger is the Double Pipe or DPHE type. The LNG plant is one of the industries that uses a heat exchanger in the process of lowering the initial temperature of the LNG to change the gas phase to liquid. The aim of this study is to obtain better efficiency in the LNG manufacturing process, so it is necessary to carry out a heat exchanger design study. Based on the design calculation results, it was found that Heat Exchanger type 2-4, material Carbon steel, area 2076, 16 m2, Rd 0.005 hr ft2 oF/btu and ΔP of 4.4051 psi. It can be concluded that the heat changer design is feasible to operate safely and without any obstacles. 
Green Synthesis of ZnO Nanoparticles using Abelmoschus esculenthus L. Fruit Extract: Antioxidant, Photoprotective, Anti-inflammatory, and Antibacterial Studies Christina Astutiningsih; Tias Eka Rahmawati; Nanik Astutik Rahman; Meri Meri
Journal of Multidisciplinary Applied Natural Science Vol. 4 No. 1 (2024): Journal of Multidisciplinary Applied Natural Science
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.204

Abstract

Nanoparticles are extensively studied for their promising biological properties. In this study, the fruit extract of Abelmoschus esculenthus L. was used as a chelating agent for the synthesis of zinc oxide nanoparticles (ZnOPs-AE) using a zinc acetate solution. The prepared ZnOPs-AE were identified and characterized using UV-vis spectroscopy, Fourier-transformed infrared spectroscopy (FTIR), particle size analyzer (PSA), scanning electron microscopy (SEM), and energy dispersive spectrum (EDS). The green synthesized ZnOPs-AE were evaluated for their antioxidant, photoprotective, anti-inflammatory, and antibacterial activities. The synthesized nanoparticles showed an intensity peak at 370 nm in the UV-vis spectrum. The FTIR result shows the presence of O-H, C=O, C-O, C-OH, and C=C chelating functional groups on the surface of nanoparticles. The size of ZnOPs-AE was determined using a PSA with particle size distribution of 102.2 nm. The ZnOPs-AE were shown to be spherical by SEM analysis and composition was 82.11% and 14.79% for Zn and O, respectively. The antioxidant properties of ZnOPs-AE showed significant antioxidant potential in DPPH, ABTS, and FRAP assays compared to the quercetin standard. The photoprotection activity test showed a SPF value of 19.63, the percentage of erythema transmission was 5.98%, and the percentage of pigmentation transmission was 5.62%. The ZnOPs-AE showed good anti-inflammatory with the synthesized nanoparticle performing activity between positive control and the fruit extract of Abelmoschus esculenthus L. Also, the ZnOPs-AE exhibited good antibacterial activity against Staphylococcus aureus (20.78 mm) and Pseudomonas aeruginosae (11.13 mm). Overall, the results highlight the effectiveness and potential of ZnOPs-AE for biological application.
PENGOLAHAN AIR TANAH DI WILAYAH BANGIL-PASURUAN MENJADI AIR MINUM DENGAN PROSES KLORINASI Atiqotuzzummah, Atiqotuzzummah; Rahman, Nanik Astuti
jurnal ATMOSPHERE Vol. 5 No. 2 (2024): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v5i2.13318

Abstract

Bangil area is a coastal area surrounded by industry. Groundwater ini Bangil Sub-district have poor quality impacted by surrounding conditions. One of the parameters of poor groundwater quality is the total plate count (TPC) value which reaches 151 x 10 colonies/ml with a standart of 1.0 x 102 colonies/ml. TPC value represents the number of microorganism colonies in the water. To reduce TPC value, its necessary to disinfect the microorganism in the water. One method that can be used is the chlorination process. The chlorination process by adding kaporit with kaporit variables 3 ppm, 4 ppm, and 5 ppm with reaction time 10 minutes, 20 minutes, 30 minutes, 40 minutes, and 50 minutes. Output from chlorination prcess will be analyzed for pH, TDS, TSS, turbidity, TPC, and residual Cl-. From the research, the TPC value decreased significantly and the best variable was obtained at a chlorine concentration of 5 ppm, with a reaction time of 50 minutes.
EFISIENSI PENGGUNAAN SISTEM AERASI – MULTI SOIL LAYERING (MSL) DALAM PENGOLAHAN LIMBAH LAUNDRY Khoiriyah, Aldina Fitri; Rahman, Nanik Astuti
jurnal ATMOSPHERE Vol. 5 No. 2 (2024): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v5i2.13499

Abstract

The increasing number of migrants in Pandaan District, Pasuruan, has led to a rise in the number of laundry services. However, laundry operations have negative environmental impacts due to the disposal of untreated laundry wastewater into water bodies. Based on initial characteristic tests, the TSS, BOD, and COD in laundry wastewater were found to exceed the quality standards set by the East Java Governor Regulation No. 72 of 2013. This study aims to examine the effects of aeration time and variations in the dimensions of the Soil Mixture Block (SMB) on the treatment of laundry wastewater using the Aeration – Multi Soil Layering (MSL) system, regarding the reduction of TSS, BOD, and COD levels. The aeration times used were 0, 30, 60, 90, and 120 minutes, while the SMB dimensions varied as follows: (4×20×4) cm, (4×20×8) cm, and (4×20×12) cm. The results demonstrated that the Aeration-MSL system was effective in reducing the concentrations of TSS, BOD, and COD. The optimal variation was found with an aeration time of 120 minutes and an SMB dimension of (4×20×12) cm, which resulted in a reduction of TSS by 78%, BOD by 93.79%, and COD by 88%.
Silica Extraction Based on Quartz Sand Waste Sandblasting PT. Dok Lamongan with Base Method Ratri, Theofilia Medya; Prastiwi, Asya Wisma; Hudha, Mohammad Istnaeny; Rahman, Nanik Astuti
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 9, No 2 (2024): EDISI SEPTEMBER 2024
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v9i2.6034

Abstract

Sandblasting is a method used to improve the surface structure of the material by using high pressure. Quartz sand is one of the abrasives used for sandblasting—quartz sand PT. Lamongan DOK contains silica (SiO2) of 83.4%. The method used in this study is the base method. The solvent used is KOH and NaOH with temperature variation of material preparation 600, 900, 1200 oC and variation of extraction time 1, 1½, 2 hours. The results showed that the most optimal variable with NaOH solvent was at the preparation temperature of 900 oC with 2 hours of extraction, and the amount of the extract yield was 28.5%. The following variable is at the preparation temperature of 600 oC with 1.5 hours of extraction, and the amount of the extract yield is 28.3%. Besides that, the optimal variable with KOH solvent is at the preparation temperature of 900 oC with 1.5 hours of extraction, and the amount of the extract Yield is 27.9%. XRD analysis showed that the extract obtained SiO2 in the form of Crystal Cristobalite and Quartz, and the FTIR analysis results detected the presence of O – H alcohol functional groups. It can provide information that sandblasting waste has a reasonably high Silica content, which can be utilized as a product with higher economic value.
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