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All Journal Jurnal Purifikasi KACANEGARA Jurnal Pengabdian pada Masyarakat
Marnia Toding
Universitas Mulawarman
Chemical Engineering, Chemistry & Bioengineering Education Environmental Science

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Edukasi pengelolaan sampah dan pengadaan tempat sampah pintar di SDN 005 Muara Badak Natanael Primus Lung; Lidia Aprilia Putri; Sabrina Nur Fahriana; Hesti Marwah Haerunnisa; Rypki Setiawan; Alif Fadlan Badali; Tessa Maria Ekklesia Aritonang; Dinda Nur Aini; Siti Rahmah; Marnia Toding; Muhammad Fajrin Mirsad; Searphin Nugroho
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 9, No 2 (2026): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v9i2.3351

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kesadaran lingkungan serta membiasakan perilaku pengelolaan sampah pada siswa Sekolah Dasar Negeri (SDN) 005 Muara Badak. Program ini mengombinasikan edukasi pengelolaan sampah dengan pengadaan inovasi berupa tempat sampah pintar berbasis Internet of Things (IoT). Peralatan utama dalam program ini mencakup dua unit tempat sampah pintar berkapasitas 60 liter yang dilengkapi sensor ultrasonik HC-SR04 untuk mendeteksi keberadaan sampah serta servo motor SG90 untuk mengontrol penutup secara otomatis. Sistem dikendalikan oleh mikrokontroler ESP32 yang diprogram menggunakan Arduino IDE sehingga memudahkan pengoperasian dan pemantauan secara real-time. Metode pelaksanaan meliputi tahapan identifikasi masalah di lingkungan sekolah, survei lapangan untuk mengukur tingkat pemahaman dan ketersediaan fasilitas, perancangan dan pembuatan alat dengan desain ergonomis sesuai kebutuhan siswa, hingga pelaksanaan sosialisasi edukatif. Kegiatan sosialisasi dilakukan secara interaktif melalui media presentasi dan praktik langsung penggunaan prototipe untuk mengenalkan pemilahan sampah organik dan anorganik secara tepat. Hasil kegiatan menunjukkan antusiasme tinggi dari siswa serta peningkatan kemampuan dalam membedakan jenis sampah. Hal ini menunjukkan keberhasilan program dalam menanamkan kesadaran pentingnya kebersihan dan pengelolaan sampah sejak dini, serta berpotensi direplikasi di sekolah lain.
APPLICATION OF A 50:50 COMBINATION OF ALUMINUM SULFATE (AL₂(SO₄)₃) AND PAPAYA (Carica papaya L.) SEED POWDER COAGULANTS ON TSS, COD, AND pH IN KARANG MUMUS RIVER WATER Budi Nining Widarti; Marnia Toding; Searphin Nugroho
Purifikasi Vol 25 No 2 (2026): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v25i2.549

Abstract

The Karang Mumus River in Samarinda City has experienced declining water quality due to domestic and urban activities, particularly affecting Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), and pH. This study evaluates the effectiveness of aluminum sulfate and papaya seed powder, individually and in combination, in improving river water quality through laboratory-scale coagulation-flocculation using jar tests. Water samples were collected near Perniagaan Bridge, Samarinda. The results showed that aluminum sulfate at an optimum dose of 0.08 g achieved COD and TSS removal efficiencies of 54%, while papaya seed powder at 1 g achieved 91% COD removal and maintained a neutral pH. However, papaya seed powder was less effective in reducing TSS due to residual unsettled organic particles. The combination of both coagulants at a 50:50 ratio achieved the highest COD removal efficiency of 99.7%, with a final pH of 6.62, meeting the applicable pH standard. Nevertheless, the final TSS concentration of 48 mg/L remained above the regulatory limit of 40 mg/L. These findings highlight the potential of combining chemical and natural coagulants to enhance COD removal, although further optimization is required to improve TSS reduction and overall treatment performance.
Co-Authors Alif Fadlan Badali Budi Nining Widarti Dinda Nur Aini Hesti Marwah Haerunnisa Lidia Aprilia Putri Muhammad Fajrin Mirsad Natanael Primus Lung Rypki Setiawan Sabrina Nur Fahriana Searphin Nugroho Siti Rahmah Tessa Maria Ekklesia Aritonang