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All Journal Jurnal Ilmiah Aplikasi Isotop Radiasi Jurnal Keteknikan Pertanian Tropis dan Biosistem JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Indonesian Journal of Laboratory Literasi: Jurnal Pengabdian Masyarakat dan Inovasi
Inggit Kresna Maharsih
Department Of Bioprocess Engineering, Faculty Of Agricultural Technology, Brawijaya University, Malang, East Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analisis Penentuan Kadar Besi (Fe) dalam Air Limbah Tambang Batu Bara Menggunakan Spektrofotometer UV-Vis Made Yuri Suryani; Adhe Paramita; Hendro Susilo; Inggit Kresna Maharsih
Indonesian Journal of Laboratory Vol 5 No 1 Tahun 2022
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijl.v0i0.72451

Abstract

Kegiatan industri di Kalimantan lebih dari 70% merupakan industri pertambangan batu bara. Limbah hasil kegiatan pertambangan dapat menyebabkan pencemaran air yang mengakibatkan turunnya kualitas air akibat kandungan air limbah tambang yang mengandung logam berat terlarut dengan sifat asam yang tinggi. Oleh sebab itu diperlukan adanya pengujian kadar besi pada air limbah tambang sebagai upaya pengendalian pencemaran air agar sesuai dengan baku mutu air limbah pertambangan. Pengambilan contoh sampel uji air limbah berdasarkan SNI 6989.59-2008 yaitu sampel air limbah diambil dari tiga titik lokasi kolam penataan area stockpile pada industri pertambangan batu bara di Kabupaten Sangatta, Kalimantan Timur. Validasi setiap parameter uji dilakukan di Laboratorium Terpadu ITK  dengan pengulangan untuk masing-masing sampel uji sebanyak 7 (tujuh) kali pengulangan. Pada parameter validasi metode analisis untuk uji linearitas pada air limbah diperoleh nilai koefisien korelasi regresi linier (r) sebesar 0,999; batas deteksi dan batas kuantitasi diperoleh sebesar 0,141 mg/L dan 0,470 mg/L. Pada uji presisi sampel uji air limbah tambang A, B dan C didapatkan nilai %RSDr sebesar 1,602%; 0,829% dan 0,782%. Nilai %recovery pada masing-masing air limbah adalah 103,429%, 108,870% dan 95,116%. Hasil pengujian kadar besi (Fe) menggunakan spektrofotometer UV-Vis dengan pengompleks tiosianat (KSCN) pada limbah A, B dan C adalah 0,721 mg/L, 2,786 mg/L dan 4,961 mg/L. Hasil tersebut menunjukkan bahwa kadar besi sampel air limbah tidak melebihi batas ambang air limbah pertambangan.
Pengenalan Sains Terapan Sederhana Guna Meningkatkan Minat Sains Pada Siswa di Lingkungan SMP Negeri 17 Balikpapan Riza Alviany; Inggit Kresna Maharsih; Fadhil Muhammad Tarmidzi; Bangkit Gotama; Memik Dian Pusfitasari
Literasi: Jurnal Pengabdian Masyarakat dan Inovasi Vol 3 No 1 (2023)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

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Abstract

Students' interest in learning may be enhanced through an attractive learning design. An attractive learning design can improve the quality of student understanding, where improvement can be assessed from the effectiveness of learning. Aspects that can affect the effectiveness of learning are learning curriculum, facilities, and teacher quality. Of the three aspects, the aspect of facilities is often a problem in schools. One example of limited school facilities is the inadequacy of the Natural Sciences Laboratory. Public Junior High School (SMPN) 17 Balikpapan is one of the schools which is constrained in the aspect of facilities where it only has one Science Laboratory so that the practicum is only carried out occasionally. Therefore, community service is carried out at SMPN 17 Balikpapan through the "Introduction to simple applied science to increase interest in science" program in which it is hoped that students' knowledge and interest in science will increase. To increase the knowledge and interest of students in science, a simple hands-on module is implemented. Before doing practicum, students are first given science material in the form of basic theory related to the experiment to be carried out. Evaluation of the activity was carried out by conducting a post-test on students in the class that was the target of the program (VII G) and the comparison class (VII A). The evaluation results showed that class VII G got a higher average score than class VII A, but class VII A got a score ≥ 75 which had a higher percentage. Field findings show that the addition of practical modules in learning methods has a positive impact on students' learning motivation. This simply did not have a significant impact on the team's expected achievement objectives, with only 6.9% achieving a score of 75.
The Effect of Biochar Particle Size on Biogas Production Using Bread Waste Substrate Yusron Sugiarto; Ulimaz Rahma Wijayanti; Nimas Mayang Sabrina Sunyoto; Inggit Kresna Maharsih; Ria Dewi Andriani; Fajri Anugroho
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol 11, No 1 (2023)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2023.011.01.10

Abstract

The effect of biochar supplementation with different particle size on biogas production in two-stage anaerobic digestion of white bread waste was carried out on a laboratory scale using a 100 mL bioreactor. The supplementation of biochar variations with particle sizes <63 µm, <125 µm, <149 µm, <250 µm, and <500 µm and the addition of different biochar concentration of 5 g/L, 15 g/L, and 25 g/L were investigated to obtain optimal concentrations. Mixed cultures were incubated at 35 °C for 40 days. Daily gas production, pH and Chemical Oxygen Demand (COD) were measured using the daily water displacement method. The results showed that the particle size of biochar < 500 µm with a biochar concentration of 5 g/L increased biogas production by 60% and resulted in gas accumulation of 4,240.03 mL/L. CH4, It has proven that biochar increased pH in the mixture. COD concentration decreased from 9,670 mg/L to 1,640 mg/L.
Exploring the Radiation Techniques in Agricultural Wastewater Management Af&#039;ida Khofsoh; Inggit Kresna Maharsih; Ananda Ananda; Ahmad Dody Setiadi; Muhammad Hamzah Solim
Jurnal Ilmiah Aplikasi Isotop dan Radiasi Vol 19, No 1 (2023): Vol 19, No. 1 (2023): November 2023
Publisher : BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jair.2023.19.1.6889

Abstract

Radiation techniques have gained significant attention in the field of agricultural wastewater management due to their effectiveness in treating diverse contaminants. This review aims to explore the effects and applications of radiation techniques, including ultraviolet (UV), gamma-ray, and electron beam (EB). UV radiation utilizes ultraviolet light to break down organic pollutants, disinfect pathogens, and remove pesticides in agricultural wastewater. Besides, gamma radiation involves the use of ionizing radiation to interact with contaminants and induce degradation processes. Furthermore, EB radiation harnesses high-energy to degrade organic compounds in wastewater. The efficacy of radiation techniques in reducing pesticides, pharmaceutical residues, microorganisms or pathogens, and other organic pollutants has been widely demonstrated. These techniques offer advantages such as versatile applicability, precise targeting of contaminants, and the potential for water reuse in various agricultural sectors, such as crop irrigation, livestock farming, and food processing. However, optimizing process parameters, including radiation dose, dose rate, pH, and temperature, are crucial to maximize treatment efficiency. While radiation techniques have proven beneficial in numerous studies, potential environmental impacts must be addressed. Byproducts generated during radiation and their fate should be studied to evaluate their toxicity and persistence. Proper waste disposal, adherence to safety regulations, and monitoring programs are necessary to minimize risks and ensure the safe use of radiation techniques. In conclusion, UV-C radiation effectively use for surface disinfection, pathogen inactivation, certain pesticides and pharmaceutical residues degradation, while gamma-ray more effective than UV-C for microorganism sterilization and inactivation, pesticide and pharmaceutical residues degradation, as well as EB radiation has high dose rate and selective penetration, and the technique also has speed and precision, feasible for practical application. Thus, advancements in technology will further optimize the efficacy and sustainability of radiation-based wastewater treatment processes in agriculture.
PELATIHAN PEMBUATAN PESTISIDA NABATI BERBASIS KULIT KOPI SEBAGAI SOLUSI PENGELOLAAN SAMPAH ORGANIK Inggit Kresna Maharsih; Athaya Devin Argyadama; Arundina Aisya Raihannisa; Kiki Gustinasari; Ubaidillah Ubaidillah; Early Veramoy
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 5 (2025): Oktober
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i5.34740

Abstract

Abstrak: Kelebihan kapasitas pada Tempat Pembuangan Akhir (TPA) menyebabkan masyarakat di desa mitra pengabdian membuang sampah organik di sekitar lingkungan atau membakar sampah. Kebiasaan ini berpotensi mencemari lingkungan dan mengancam kesehatan masyarakat. Oleh sebab itu, dilakukan pelatihan pembuatan pestisida nabati dari kulit kopi. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengolah sampah kulit kopi menjadi produk yang bermanfaat, memberikan pemahaman kepada masyarakat tentang manfaat dan cara membuat pestisida nabati dari kulit kopi, dan mengetahui performa pestisida nabati dalam mengurangi hama pada tanaman. Peserta adalah 20 orang anggota dari Persatuan RT 1 dan RT 2 (PERSADA). Metode kegiatan yang dipilih adalah Community-Based Participatory Action Research (CBPAR). Tahapan kegiatan meliputi perencanaan, implementasi, dan evaluasi menggunakan pemberian kuesioner dan observasi kinerja pestisida. Hasilnya adalah diperoleh produk pestisida nabati sebanyak 40 liter. Produk ini langsung diaplikasikan warga ke tanaman. Hasilnya, tanaman tumbuh lebih hijau dan semakin segar. Selain itu, terjadi kenaikan pemahaman peserta tentang manfaat dan pembuatan pestisida nabati sesudah pelatihan sebesar 28%.Abstract: The overcapacity at the Landfill Site (TPA) has led the community in the partner village to dispose of organic waste in the surrounding environment or burn it. This habit has the potential to pollute the environment and threaten public health. Therefore, a training program on making botanical pesticides from coffee husks was carried out. This community service activity aimed to process coffee husk into useful product, provide the community with knowledge about the benefits and methods of making botanical pesticides from coffee husks, and assess the performance of the botanical pesticide in reducing plant pests. The participants were 20 members of the Persatuan RT 1 and RT 2 (PERSADA). The selected method was Community-Based Participatory Action Research (CBPAR). The activity included planning, implementation, and evaluation, which were conducted using questionnaires and by observing pesticide performance. As a result, 40 liters of botanical pesticide were successfully produced. The product was immediately applied by the community to their crops, resulting in greener and healthier plants. In addition, participants’ understanding in making botanical pesticide increased by 28% after the training. 
Diseminasi pembuatan edible coating untuk memperpanjang umur simpan stroberi Inggit Kresna Maharsih; Stephanie Kezia Widjaja; Puspita Rahayu
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 3 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i3.30351

Abstract

AbstrakStroberi segar merupakan salah satu komoditas buah di Desa Tulungrejo, Kecamatan Bumiaji, Kota Batu. Biasanya, petani stroberi menjual stroberi segar kepada konsumen. Namun, singkatnya masa simpan stroberi menyebabkan petani membuang stroberi yang tidak laku. Hal ini dikarenakan jika menyimpan stroberi di dalam freezer, maka akan mengubah sifat fisik buah. Berdasarkan hal tersebut, maka dilaksanakan diseminasi pembuatan dan aplikasi edible coating untuk memperpanjang umur simpan stroberi di Kelompok Tani Stroberi Desa Tulungrejo. Tujuan dari kegiatan ini adalah untuk memberikan pengetahuan kepada anggota kelompok tani tentang metode yang dapat memperpanjang umur simpan stroberi tanpa merusak teksturnya. Diseminasi ini dilaksanakan berdasarkan metode Community-based research, dimana anggota Kelompok Tani Stroberi terlibat langsung dari awal hingga akhir kegiatan. Tahap pengabdian ini meliputi diskusi dengan ketua kelompok untuk memilah masalah, tinjau lapangan, uji coba pembuatan dan performa edible coating, pelatihan pembuatan edible coating, dan evaluasi kegiatan. Awal sebelum diseminasi, sebanyak 53% anggota kelompok tani tidak mengetahui edible coating dan manfaatnya terhadap umur simpan stroberi. Setelah kegiatan diseminasi berlangsung, sebanyak 76% anggota mengetahui edible coating, dan 94% mengetahui cara pembuatan edible coating untuk memperpanjang umur simpan stroberi. Kata kunci: community-based research; edible coating; kitosan; stroberi; umur simpan. AbstractStrawberries are fruit commodity in Desa Tulungrejo, Bumiaji District, Batu City. Usually, strawberry farmers sell fresh strawberries to consumers. However, the short shelf life of strawberries causes farmers to discard unsold strawberries. If strawberries are kept in the freezer in order to prolong their shelf life, it will change the physical properties of the fruit. Due to this phenomenon, dissemination was carried out on the preparation and application of edible coating to extend the shelf life of strawberries in the Kelompok Tani Stroberi in Desa Tulungrejo. The purpose of this disssemination is to provide the members of Kelompok Tani with knowledge about a method that can prolong the shelf life of strawberries without compromising their texture. This dissemination was based on the Community-based Research method, where members of the Kelompok Tani Stroberi were directly involved from the beginning to the end of the activity. This community service includes discussions with the group leader to sort out problems, field inspections, trials on preparation and performance of edible coating, dissemination on making edible coatings, and evaluation of activities. Before dissemination, members of farmer group did not know about edible coating and its benefits on the shelf life of strawberries, with percentages of 53% of members. After the dissemination activity, 76% of members knew about edible coating, and 94% ones knew how to make edible coating to extend the shelf life of strawberries. Keywords: community-based research; chitosan; edible coating; shelf-life; strawberry.
Co-Authors Achmad, Fariz Adhe Paramita Af&#039;ida Khofsoh Ahmad Dody Setiadi Ananda Ananda Arundina Aisya Raihannisa Athaya Devin Argyadama Bangkit Gotama Early Veramoy Fadhil Muhammad Tarmidzi Fajri Anugroho Hendro Susilo Kiki Gustinasari Made Yuri Suryani Memik Dian Pusfitasari Muhammad Hamzah Solim Nimas Mayang Sabrina Sunyoto Puspita Rahayu Ria Dewi Andriani Riza Alviany Stephanie Kezia Widjaja Ubaidillah Ubaidillah Ulimaz Rahma Wijayanti