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All Journal JURNAL TEKNOLOGI KIMIA DAN INDUSTRI JMM (Jurnal Masyarakat Mandiri) Dedikasi: Jurnal Pengabdian kepada Masyarakat Journal of Clean Technology Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran
Maulida Zakia
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Negeri Semarang, Indonesia
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Industrial & Manufacturing Engineering Social Sciences Other

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PENGOLAHAN AIR LIMBAH INDUSTRI ELEKTROPLATING DENGAN ELEKTROKOAGULASI MENGGUNAKAN ELEKTRODA Fe Jessica Dima F.M.; Maulida Zakia; R Ratnawati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (140.286 KB)

Abstract

Electroplating industry is one of industry that still growing in Indonesia. The wastewater generated from this industry is dangerous because it contained  dissolved metals such as chromium, nickle, cadmium, copper, etc. Currently,  there are some wastewater treatment method such as presipitation, microorganism, ultrafiltration, and reverse osmosis. However those method has disadvantage like secondary wastewater, high cost, and applied on industry scale is hard. The more effective method is electrocoagulation. In this research potassium dichromate solution is used as sintetic wastewater and tested on electroplating wastewater. Electrocoagulation method will be investigated by studying the effect of time, initial concentration and current density to the TDS of final solution. In the electroplating wastewater tested the effect of time and current density to the TDS of final wastewater. Iron Fe ST 37-2 are used as electrodes. From this research obtained that on the low initial concentration of potassium dichromate will give higher removal TDS (77,78%) than on the higher initial concentration (41,18%). This is because at the same time frame the number of Fe2+ produced not enough to reduce all Cr6+ in solution with high concentrations. In the high current density gave higher removal TDS (65,95%) than low current density (34,48%). The higher current density indicates the more Fe2+ produced to reduce Cr6+ to Cr3+ that will form Cr(OH)3 so it can deposited easily. Electrocoagulation method can be applied to wastewater  because it can lower the TDS of electroplating wastewater by using a variation of current density.
Pendampingan Pembuatan Biobriket Dari Pemanfaatan Sumber Daya Lokal Limbah Sabut Kelapa di Desa Kemujan Karimunjawa Kusumaningrum, Maharani; Pradnya, Irene Nindita; Wulansarie, Ria; Zakia, Maulida; Bahlawan, Zuhriyan Ash Shiddieqy; Imani, Nadya Alfa Cahaya; Permanadewi, Indrasukma; Salsabila, Luvena; Suwandi, Luluk Arvi Cahyaning; Wati, Afifah Sagita Fitria; Syahputra, Adhika Bintang; Fandika, Putri Maharani Adinda; Pramitha, Deva Aurelya; Pratama, Muhammad Herdi; Diana, Savira Rahma; Sadan, Serlia Fitri; Imanullah, Kautsar Taqi
Dedikasi:Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 1 (2024): Jurnal Dedikasi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/dedikasi.v5i1.360

Abstract

Abstrak Desa Kemujan, yang terletak di Kecamatan Karimunjawa, memiliki potensi besar dalam memanfaatkan limbah sabut kelapa sebagai bahan baku biobriket. Dengan luas wilayah 162,1 km² dan populasi 3.391 jiwa, desa ini memiliki keberagaman budaya dan suku yang kaya. Limbah sabut kelapa yang terdapat di Desa Kemujan pada saat ini belum dimanfaatkan secara optimal. Hal ini terjadi karena minimnya kesadaran dan pengetahuan masyarakat sekitar untuk mengolah sabut kelapa tersebut. Sabut kelapa merupakan biomassa yang dapat dimanfaatkan sebagai bahan alami pembuatan biobriket. Sehingga pengabdian melalui pendampingan dan pelatihan pembuatan biobriket untuk memanfaatkan sumber daya lokal sabut kelapa di Desa Kemujan Karimunjawa perlu diselenggarakan. Metode pelaksanaan yang dilakukan dalam pengabdian ini adalah sosialisasi terkait biobriket dan pelatihan pembuatan biobriket dari sabut kelapa secara langsung. Hasil yang didapat dari pengabdian ini adalah meningkatkan nilai guna dan nilai ekonomis sabut kelapa, berkontribusi pada pengembangan UMKM di Desa Kemujan, serta meningkatkan kesadaran dan pengetahuan masyarakat terkait pemanfaatan limbah sabut kelapa serta proses pembuatan biobriket dari sabut kelapa. Keywords: Biobriquettes; Coconut Husk; Waste
Ultrafiltration Technology for Batik SME Wastewater Treatment: Column-Based Materials with Zippers for Plant Irrigation Water Supply Zakia, Maulida; Mahatmanti, F. Widhi; Wati, Safna Rahma; Rahmalia, Berliana Putri; Rengga, Wara Dyah Pita
Rekayasa Vol. 22 No. 2 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v22i1.17184

Abstract

Textile batik wastewater discharged into drains can contaminate groundwater and harm ecosystems and human health. This study focuses on reducing hazardous heavy metals in sewage through physical and chemical filtration. Heavy metals in the wastewater can poison aquatic organisms, disrupt food chains, and contaminate water sources. The goal is to analyze the heavy metal content, pH, and colour of batik wastewater to make it safe for plant irrigation. The filtration process uses silica sand, activated carbon, and zeolite for mechanical filtration and ion exchange. Ultrafiltration is added to remove fine particles, heavy metals, and organic matter more effectively while resisting fouling. These materials are placed in zipper bags for easy replacement and regeneration. The wastewater passes through a filtration column consisting of two tanks: Tank 1 for fresh wastewater and sedimentation, and Tank 2 for overflow from Tank 1. Tests were conducted for Cr, Cu, Pb, and Zn using AAS, pH with a universal pH meter, and colour through organoleptic analysis. Cr levels initially exceeded quality standards, while Cu, Pb, and Zn were within safe limits. After filtration, reductions of Cr, Cu, Pb, and Zn were 81%, 8%, 22%, and 85%, respectively. The pH decreased from 10–11 to 7–8, and water color improved from murky greenish-brown to clearer. The results demonstrate the potential of ultrafiltration in reducing heavy metals, stabilizing pH, and improving water clarity. Wastewater treated through this process meets safety standards and can be used for plant irrigation.
Zero Waste Education Organic Waste Treatment for Students of SD N Petompon 3 Irene Nindita Pradnya; Maulida Zakia; Zuhriyan Ash Shiddieqy Bahlawan; Kakalia Putri Auralita; Achmad Wikandaru; Daffa Nur Muhammad
Journal of Clean Technology Vol. 1 No. 2 (2024): August 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/joct.v1i2.13016

Abstract

Improper waste management at SDN Petompon 3 Semarang has led to inadequate sanitation and a lack of environmental awareness among students. This community service initiative aimed to address these issues by educating 5th and 6th-grade students on organic waste processing through the utilization of Black Soldier Fly (BSF) larvae. The program introduced a hands-on approach where students learned to sort, manage, and convert organic waste into value-added products such as animal feed and organic fertilizer. Additionally, the program incorporated entrepreneurship training, equipping students with basic skills in packaging, branding, and marketing to promote sustainable small-scale enterprises. The activities included stakeholder coordination, infrastructure preparation, environmental education, and product processing workshops. Results showed improved student participation, increased environmental knowledge, and measurable growth in maggot biomass and waste decomposition rates over 30 days. This integrated program not only enhanced environmental cleanliness at the school but also fostered early environmental stewardship and entrepreneurial skills among students, contributing to sustainable waste management and community empowerment.
PENERAPAN SMART FARMING MAGGOT BSF DALAM MENDORONG KUALITAS AYAM UNGGUL Pradnya, Irene Nindita; Zakia, Maulida; Sukestiyarno, Yohanes Leonardus; Enjelita, Anggun; Emyu, Dalnius; Maulana, Ivan
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i2.30036

Abstract

Abstrak: Desa Karangkobar di Kendal memiliki lingkungan alam yang subur, menjadikannya tempat yang cocok untuk peternakan ayam. Ketersediaan pakan alami, udara bersih, dan kualitas air yang baik mendukung kesehatan ternak. Masalah pada Tini Farm, mitra peternakan mikro dalam program ini, hanya terdapat 6 pekerja berpendidikan dasar. Peternak ayam masih mengandalkan pakan konvensional (pur) yang rendah protein dan berisiko mengandung zat berbahaya. Alternatif seperti maggot BSF memiliki nutrisi tinggi dan ramah lingkungan, tetapi budidayanya terkendala teknologi, media wadah, serta suhu dan kelembaban yang kurang optimal untuk pertumbuhannya. Tujuan pengabdian adalah penerapan smart farming maggot BSF yang meningkatkan kualitas ayam siap dijual dalam 1–3 bulan antara 125-200 ekor ayam per siklus serta keterampilan mitra dalam pemantauan pertumbuhan maggot berbasis IoT. Metode pelaksanaan koordinasi dengan 6 peternak Tini Farm di Desa Karangkobar, konstruksi, praktik, serta pendampingan penggunaan advanced technology maggot cultivation dan automatic feeder berbasis IoT terutama penerapan suhu optimal (30–36°C) dan kelembaban (60–70%). Sosialisasi meliputi instalasi, kontrol suhu dan kelembaban, serta monitoring real-time. Evaluasi dilakukan melalui wawancara serta kuesioner sebanyak 15 pertanyaan, dengan pendampingan lanjutan selama 3–6 bulan. Hasil survei menunjukkan 72,2% masyarakat tertarik mengenai budidaya maggot sedangkan dalam evaluasi lanjutan 60,6% masyarakat mengalami peningkatan produksi dari budidaya maggot BSF. Teknologi ini mampu menekan biaya produksi dan meningkatkan daya saing peternak.Abstract: Karangkobar Village in Kendal has a fertile natural environment, making it an ideal location for poultry farming. The availability of natural feed, clean air, and highwater quality supports livestock health. However, Tini Farm, a micro-scale poultry farming partner in this program, faces several challenges. It only employs six workers with basic education, and the farmers still rely on conventional feed (pur), which is low in protein and may contain harmful substances. Alternative feeds like BSF maggots offer high nutritional value and are environmentally friendly, but their cultivation is limited by technology, container media, as well as suboptimal temperature and humidity conditions. This program aims to implement smart farming using BSF maggots to enhance chicken quality, enabling sales within 1–3 months, producing 125–200 chickens per cycle. It also focuses on improving farmers' skills in IoT-based maggot growth monitoring. Implementation includes coordination with six poultry farmers at Tini Farm, construction, practical training, and assistance in using advanced maggot cultivation technology and IoT-based automatic feeders. Training covers installation, temperature and humidity control, and real-time monitoring. Evaluation involved interviews and a 15-question questionnaire, followed by 3–6 months of additional assistance. Results show 72.2% of the community is interested in maggot farming, with 60.6% increasing production. This technology reduces costs and boosts competitiveness.
INOVASI PAKAN LELE BERBASIS DIGITAL FARMING MAGGOT BSF SEBAGAI UPAYA PENINGKATAN KEBERLANJUTAN PADA SISTEM BUDIDAYA SKALA UMKM Zakia, Maulida; Pradnya, Irene Nindita; Astuti, Widi; Sukestiyarno, Yohanes Leonardus; Ardana, Grandis Belva; Athif, Rona Najma; Dryandi, Rayyan Akmal; Saputra, Vito Ardino
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 1 (2026): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i1.36935

Abstract

Abstrak: Sektor budidaya ikan lele berpotensi ekonomi tinggi, namun usaha mikro, kecil, dan menengah (UMKM) sering terbebani biaya pakan konvensional dan keterbatasan manajemen produksi. Pengabdian ini bertujuan meningkatkan efisiensi UMKM “Lele Mandiri” (melibatkan 10 pelaku usaha) dengan mengembangkan pakan berbasis maggot Black Soldier Fly (BSF) dan menerapkan sistem budidaya maggot inovatif serta automatic fish feeder berbasis Internet of Things (IoT). Metode pelaksanaan meliputi koordinasi, sosialisasi, pelatihan, workshop teknis, serta praktik lapangan yang melibatkan 10 peserta dari mitra UMKM Lele Mandiri. Evaluasi dilakukan melalui observasi langsung, penyebaran kuesioner, dan analisis produktivitas. Hasil menunjukkan peningkatan bobot ikan lele dari 200 g menjadi 300 g dan penurunan biaya pakan hingga 45%. Selain itu, antusiasme masyarakat terhadap budidaya maggot meningkat 90%, dan efisiensi produksi UMKM naik sebesar 70%. Dengan demikian, integrasi sistem pakan berbasis sirkular ekonomi dan IoT terbukti efektif meningkatkan daya saing dan keberlanjutan usaha budidaya lele skala UMKM.Abstract: The catfish aquaculture sector holds significant economic potential; however, micro, small, and medium enterprises (MSMEs) continue to face challenges in production efficiency due to the high cost of conventional feed and limited knowledge in production management. This community engagement program aims to develop BSF maggot-based catfish feed while enhancing the capacity of the Lele Mandiri MSME through the implementation of an innovative maggot farming system and an Internet of Things (IoT)-based automatic fish feeder. The implementation methods included coordination, socialization, training, technical workshops, and field practice involving participants from the Lele Mandiri MSME partner. Evaluation was conducted through direct observation, questionnaire distribution, and productivity analysis. The results indicated an increase in catfish weight from 200 g to 300 g and a 45% reduction in feed costs. Furthermore, community interest in maggot cultivation increased by 90%, and production efficiency improved by 70%, reflecting enhanced economic value and strengthened technological capacity toward sustainable aquaculture.
Co-Authors Achmad Wikandaru Ardana, Grandis Belva Athif, Rona Najma Bahlawan, Zuhriyan Ash Shiddieqy Daffa Nur Muhammad Diana, Savira Rahma Dryandi, Rayyan Akmal Emyu, Dalnius Enjelita, Anggun F Widhi Mahatmanti Fandika, Putri Maharani Adinda Imani, Nadya Alfa Cahaya Imanullah, Kautsar Taqi Irene Nindita Pradnya Jessica Dima F.M. Kakalia Putri Auralita Maharani Kusumaningrum Maulana, Ivan Permanadewi, Indrasukma Pradnya, Irene Nindita Pramitha, Deva Aurelya Pratama, Muhammad Herdi R Ratnawati Rahmalia, Berliana Putri Ria Wulansarie, Ria Sadan, Serlia Fitri Salsabila, Luvena Saputra, Vito Ardino Sukestiyarno Sukestiyarno Suwandi, Luluk Arvi Cahyaning Syahputra, Adhika Bintang Wara Dyah Pita Rengga Wati, Afifah Sagita Fitria Wati, Safna Rahma Widi Astuti