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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia STUDIA ISLAMIKA Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran Al Qodiri : Jurnal Pendidikan, Sosial dan Keagamaan Jurnal Dimensi Pendidikan dan Pembelajaran Jurnal SOLMA Jurnal Darussalam: Jurnal Pendidikan, Komunikasi dan Pemikiran Hukum Islam Tarbawi : Jurnal Pendidikan Islam Martabe : Jurnal Pengabdian Kepada Masyarakat Astonjadro JTP - Jurnal Teknologi Pendidikan Jurnal Ilmiah Mandala Education (JIME) JISIP: Jurnal Ilmu Sosial dan Pendidikan JUPE : Jurnal Pendidikan Mandala MIZAN, Jurnal Ilmu Hukum Jurnal Dinamika UMT Abdi Masyarakat JTIEE (Journal of Teaching in Elementary Education) E-Link Journal Jurnal Pendidikan dan Kewirausahaan SELODANG MAYANG Rausyan Fikr : Jurnal Pemikiran dan Pencerahan Didaktika: Jurnal Pemikiran Pendidikan Tadarus Tarbawy : Jurnal Kajian Islam dan Pendidikan Journal Sport Science, Healt and Tourism of Mandalika (Jontak) Indonesian Journal of Primary Science Education (IJPSE) Journal La Lifesci Journal La Multiapp Iqtishaduna : Jurnal Ilmiah Mahasiswa Hukum Ekonomi Syariah Nusantara Hasana Journal COMMUNITY : Jurnal Pengabdian Kepada Masyarakat RUANG KATA: Journal of Language and Literature Studies Jurnal Ilmiah Buana Bastra: Bahasa, Susastra, dan Pengajarannya Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal TRILOGI: Jurnal Ilmu Teknologi, Kesehatan, dan Humaniora Maksigama : Jurnal Ilmiah Hukum Universitas Wisnuwardhana Malang Jurnal Pengabdian Mandiri Jurnal Ilmiah Pendidikan Dasar (JIPDAS) PERTANIAN TROPIK Gelora: Jurnal Pendidikan Olahraga dan Kesehatan IKIP Mataram Journal of Governance, Taxation, and Auditing Al-Istinbath: Jurnal Hukum Islam JURNAL MUARA PENDIDIKAN Al Basirah AHKAM : Jurnal Hukum Islam dan Humaniora JGK (Jurnal Guru Kita) Jurnal Pendidikan dan Ilmu Sosial Jurnal Spasial: Penelitian, Terapan Ilmu Geografi dan Pendidikan Geografi Guruku: Jurnal Pendidikan dan Sosial Humaniora Triwikrama: Jurnal Ilmu Sosial JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah Jurnal Studi Ekonomi dan Pembangunan International Journal of Sustainable Applied Sciences (IJSAS) Cendikia Pendidikan Jurnal Nakula: Pusat Ilmu Pendidikan, Bahasa Dan Ilmu Sosial Trigonometri: Jurnal Matematika dan Ilmu Pengetahuan Alam Jurnal Penelitian, Pengembangan Pembelajaran dan Teknologi (JP3T) Journal Innovation In Education Prosiding Seminar Hukum Aktual Fakultas Hukum Universitas Islam Indonesia JURNAL RUMPUN MANAJEMEN DAN EKONOMI Edukasi Elita : Jurnal Inovasi Pendidikan Harmoni Pendidikan: Jurnal Ilmu Pendidikan Jurnal Hukum Islam Journal Serambi Engineering (JSE) JUDIKIS: Jurnal Pendidikan Islam Rechtsvinding Realisasi: Ilmu Pendidikan, Seni Rupa dan Desain International Journal of Law, Crime and Justice SAKOLA: Journal of Sains Cooperative Learning and Law Al-Qadim - Jurnal Tafsir dan Ilmu Tafsir Proceeding Of International Conference On Education, Society And Humanity Edukasia Islamika: Jurnal Pendidikan Islam Policy and Law Journal SINAR: Sinergi Pengabdian dan Inovasi untuk Masyarakat Frasa: Jurnal Keilmuan Bahasa, Sastra dan Pengajarannya Sportify Journal Sports Collaboration Journal Jurnal Manajemen dan Bisnis (J-Mabis) INTERACTION: Jurnal Pendidikan Bahasa Al-Umm: Jurnal Pengabdian dan Pengembangan Masyarakat Studia Islamika Jurnal Ilmiah Mandalika Education Journal Techno Entrepreneur Acta
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Linking Degree of Deacetylation to Coagulation Efficiency of Crustacean Waste Chitosan in Water Treatment Sinardi Sinardi; Ismail Marzuki; Asriadi Asriadi; Andi Sry Iryani; Faisal Riza Basalamah; Andi Irsyam Mansyur; Hardimas Prayudi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v23i2.533-542

Abstract

Turbidity removal remains challenging because stable colloids resist sedimentation, motivating the use of biodegradable coagulants such as chitosan derived from crustacean waste. However, an integrated quantitative linkage between the degree of deacetylation (DD), zeta potential evolution, and dose-dependent turbidity removal across pH is still limited for shell waste-derived chitosan. This study aimed to relate DD to the zeta potential behavior and coagulation efficiency of chitosan derived from green mussel, crab, and shrimp shells at pH 5, 7, and 9. At pH 7, shrimp-shell chitosan (DD 89.05%) achieved 98.38% turbidity removal at 190 mg/L, crab-shell chitosan (DD 87.64%) achieved 96.72% at 320 mg/L, and green mussel chitosan (DD 77.80%) achieved 95.08% at 300 mg/L [mean±SD, n=3].  The zeta potential shifted from −0.81 mV (untreated synthetic water) to +1.43 to +2.80 mV after dosing, indicating dominant charge neutralization with partial overcompensation. Overall, DD provides a practical screening descriptor for selecting locally sourced chitosan and optimizing the dose for sustainable turbidity control. Valorizing shell waste into effective coagulants may reduce the reliance on inorganic coagulants and support environmentally responsible water treatment practices. This study established an integrated DD zeta potential dose relationship across pH to explain and compare the coagulation performance of locally sourced shell-waste chitosan for turbidity removal. 
Analisis Mutu Batubara sebagai Bahan Bakar Berdasarkan Karakteristik Abu, Densitas Relatif dan Logam Berat Syamsul Alam; Ismail Marzuki; Andi Irsyam Mansyur
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

Batubara merupakan salah satu sumber energi utama yang banyak digunakan pada sektor industri dan pembangkit listrik karena memiliki nilai kalor tinggi dan ketersediaan yang melimpah. Permasalahan dalam penelitian ini adalah bagaimana mutu batubara sebagai bahan bakar berdasarkan karakteristik abu, densitas relatif, dan kandungan logam berat. Penelitian ini bertujuan untuk menganalisis mutu batubara berdasarkan parameter tersebut. Metode penelitian dilakukan melalui pengambilan sampel batubara dari empat lokasi berbeda, kemudian dilakukan preparasi sampel berupa pengeringan, penghancuran, dan pengayakan. Analisis meliputi pengujian densitas relatif, karakteristik abu dan Ash Fusion Temperature (AFT) serta kandungan logam berat menggunakan metode Atomic Absorption Spectrophotometer (AAS). Hasil penelitian menunjukkan bahwa densitas relatif batubara berada pada kisaran 1,28–1,42 yang masih memenuhi standar sebagai bahan bakar. Karakteristik abu menunjukkan variasi komposisi, di mana Lokasi B memiliki kualitas terbaik dengan kandungan SiO₂ tinggi (45,60%) dan ketahanan terhadap slagging yang baik, sedangkan Lokasi C memiliki kualitas terendah dengan nilai AFT rendah (1140°C) serta kandungan alkali dan SO₃ yang tinggi. Kandungan logam berat berupa arsenik (1,51–1,76 ppm) dan merkuri (0,02–0,03 ppm) masih berada di bawah baku mutu lingkungan. Secara keseluruhan, seluruh sampel batubara layak digunakan sebagai bahan bakar namun perbedaan karakteristik abu mempengaruhi performa pembakaran dan potensi dampak lingkungan.
Pengembangan Media Pop Up Book Interaktif untuk Memahami Konsep Bangun Ruang Siswa Kelas IV SD Aisyah Indi Rahmawati; Arissona Dia Indah Sari; Ismail Marzuki
Harmoni Pendidikan : Jurnal Ilmu Pendidikan Vol. 3 No. 3 (2026): Harmoni Pendidikan : Jurnal Ilmu Pendidikan
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/hardik.v3i3.3410

Abstract

This study aims to develop an interactive pop-up book learning medium, Pop-Up Book Interaktif (PUB BANGRU), for teaching 3D shapes to fourth-grade elementary school students. The study was motivated by students’ low conceptual understanding of 3D shapes and the limited use of interactive learning media. PUB BANGRU integrates three-dimensional visualizations, QR Codes containing audio explanations, and interactive questions to help students understand 3D shape concepts in a concrete, engaging, and meaningful way. This study employed the Research and Development (R&D) method using the ADDIE model, consisting of Analysis, Design, Development, Implementation, and Evaluation. The research was conducted at UPT SD Negeri 56 Gresik with fourth-grade students as the subjects. Data were collected through interviews, media and subject matter expert validation, comprehension test instrument validation at UPT SD Negeri 113 Gresik, teacher and student response questionnaires, and pretest and posttest assessments. The validation results showed that the pretest instrument obtained 95% and the posttest instrument obtained 94%, with an average validity of 94.5%, categorized as highly valid. Media expert validation obtained 92.5%, while subject matter expert validation obtained 81.5%, both categorized as highly valid. Teacher and student responses reached 87% and 96.58%, respectively, categorized as excellent. The effectiveness of the medium was indicated by an N-Gain score of 0.74 with a percentage of 74.72%, categorized as high. Thus, PUB BANGRU is valid, practical, and effective for improving fourth-grade students’ conceptual understanding of 3D shapes.
Co-Authors A. Malthuf Siroj, A. Malthuf A. Sry Iryani Abdul Hafid Abdul Hafid Abdur Rohim, Abdur Achmad Fawaid Afakhrul Masub Bakhtiar Agustina, Hani Ahmad Rifa’i Aini, Kudrotun Aisyah Indi Rahmawati Akbar, Reza Aulia Al.Jumroh, Siti Fatihhaturrahmah Alfa Nurhasanah Aliurridha Amanda youke elvira Aminullah Aminullah Anang Setiawan Andi Gilang Permadi Andi Irsyam Mansyur Andi Sry Iryani Anggita Anggeraini Harahap Anita Firdaus Anuraga Jayanegara Arif, Andi Nurul Aulia Arifani Zahira Arya Setya Nugroho Asmeati Asmeati Asriadi Asriadi Asy’ari, Ja’far Atia, Milda Aulya Stephanie Putri Ayu Marshinta Wulandari, Putri Azhari, Garin Azzahra Nur Salsabilla Bagus Wibowo Biutris Lilianti Labulu Budidarsono, Anya Sitara Bukhori Muslim Bulqis, Malikal Chaerul, Muh Chusyairi, Ahmad Dadang Warta Candra Wira Kesuma Desi, Natsar Devi Indri Febriyana Dewi Murniasih Didik Setiyadi Dwi Riski Afriansyah Ekawati, Wahyu Ela Aidia Elisabeth Lis Kleden Elkhairati, Elkhairati Emawati Emawati Erniati Bachtiar Erniati Erniati Fahlepi, Hazril Faisal Riza Basalamah Faris Jumawan, Faris Fatmeriany, Fatmeriany Fauziatur Rohmah Fauziyah, Nur Fikrah, Zakia Mega Firdaus, Fanana Fitri Anggraini, Fitri Ganis Irham Fanani* Goziyah, Goziyah Gunawan, I Made Sony Gusty, Sri Haeriska, Haeriska Hani Agustina Hardimas Prayudi Haris, Haris Mahfud Khoirul Anam Harun, A. Muh. Yusuf Herman Syah Hermansyah hermawati, najwa assabila Husnul Alfi Syahara I Gusti Ayu Ketut Rachmi Handayani Iddho Chafidho Ikomah, Rinda Widya Imran T, Muh. Iqnatia Alfiansyah Irfan Arianto Saputra Irgi Prayogo Isharyanto Isharyanto Islam Ragab Abdelhamid Shehata3 Istikamatul Amelia Jamaludin Jamaludin Jannah, Rizky Amalia Miftakhul Jayuska, Rizki Johra, Johra Juli Yani Kalapain, Febiola Kamarza Mulia, Kamarza Kartika Wulandari Klasih Anur Pangayoman Kusuma, Lalu Sapta Wijaya Lailatus Shobikhah Lailatuzz Zuhriyah Laksono Trisnantoro Lu'luum Maknuun Lukamanul Hakim Lukmanul Hakim M. ILHAM BAYAZID M. Iqbal Ma’rifah, Ulfatul Mahfudloh, Azhari Maman Sudirman Masub Bakhtiar, Afakhrul Maulidin, Maulidin Mbayang, Chrissonia Margareta Meldawati Meldawati Moch. Taufik Sanhaji Mochammad Alfin Ramdhan Monika Bunga Wain Mubarokah Nuriaini Dewi Muhammad Chaerul Muhammad Zakky Mubarok Muis Faiyah Musolli Muthi'ah, Anisatun Nadayah, Natasatun Nafa Pravita Zalianty Najiburrohman, Najiburrohman Nanang Khoirul Umam Nataria Wahyuning Subayani Nazil Mahazin Neng Sih Sri Wahyuni Nirmala Fitriannida, Lyra Nourma Yunita NUR FAUZIYAH Nur Fitriya Nur Laili Anggun Rahmawati Nurbaedah, Nurbaedah Nurdin Nurdin Nurdin NURUL HIDAYAH Nurul Ilmiah Nurwijayanti Okta Elviana Manurung POPPY INDRAYANI, POPPY Prabawa, Windhi Gita Praswasti Pembangun Dyah Kencana Wulan Putri, Dita Dwi Angela Ramdhani, Muhammad Farid Rasmita, Riza Raudhatul Jannah Rematobi, Rahel RIMA RIMA Rinni Puspitasari Ritnawati, Ritnawati Rizka Devi Nur Safitri Rizka Putri Roike Mambrasar Rully Pramudita Rumadaul, Ardawia Sabilatul Hidayah Safitri, Nurulia Sakti Ritonga Salwa Farodisa Sari, Arissona Dia Indah Sarmiana Batubara Sa’adilah Mursyid Saragih Segeit, Hendrevina P. Selamat Selfina Gala Seni Oktriani Setiadi, Wira Setya Nugraha, Arya Silviatur Rokhmah Sinardi Sitepu, Ferry SITI AISAH Siti Fatihhaturrahmah Al.Jumroh Siti Khoirunisa’ Slamet Riadi Soemardiawan Soemardiawan, Soemardiawan Subari, Samhana Suryati Sueni, Ucun Sulha Sulha Sunarto, Moh. Zainuddin Supriyatnak, Kokom Suraya Suraya Suryanti Suryanti Susi Yundarwati Syamsul Alam Syarifatul Malihah Syobri, Nazalus T. Irmansyah tahang tahang Tia Savitria Tiza Yaniza Ulfiyatus Sholikah Vermin Umboh Vivi Nur Indriani Wahyudi, Didy wahyuni Wahyuni wahyuni wahyuni Wan Mai Zulia Widodo Wahyu Purwanto Widyasanti, Nisa Setya Wini, Wini Wiryanto Wiryanto Witdianti, Yeni Yekwam, Elia Yessy Astriani Yolan Marjuk Yundarwati, Susi Yuswan Muharam Zainal Arifin ZHAFRAN, LA ODE Zhoafir, Muhammad