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Journal : advance sustainable science engineering and technology asset

Exploring Biochar Briquettes from Biomass Waste for Sustainable Energy Heriyanti, Andhina Putri; Bakri, Sitty Nur Syafa; Jabbar, Abdul; Kholil, Putri Alifa; Amelia, Rizki Nor; Savitri, Erna Noor; Rifaatunnisa; Siti Herlina Dewi; Habil Sultan
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.1311

Abstract

The increasing demand for renewable energy necessitates sustainable alternatives such as biochar briquettes derived from agricultural waste. This study aims to optimize the production process and evaluate the physical, mechanical, and combustion properties of biochar briquettes made from corn residues, rice husks, and coconut shells. The methodology includes biomass carbonization, binder ratio optimization, and systematic testing of key quality parameters such as moisture content, density, ash content, and calorific value. Results indicate that an optimal biomass-to-binder ratio yields a high calorific value (7,192 kcal/kg) and low ash content (3.57%), enhancing combustion efficiency. Maintaining moisture content below 10% enhances ignition and prolongs burning time. These findings highlight biochar briquettes' role in carbon sequestration, biomass conversion, and sustainable waste management, supporting the circular economy and reducing environmental pollution. Biochar briquettes offer a clean, accessible energy solution, contributing to global energy security and climate change mitigation.
Mangrove Biodiversity for Coastal Resilience and Sustainability: A Dynamic Case Study from Indonesia Martuti, Nana Kariada Tri; Jabbar, Abdul; Irsadi, Andin; Sidiq, Wahid Akhsin Budi Nur; Melati, Inaya Sari; Eldin Khair, Amar Sharaf; Mutiatari, Dhita Pracisca
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2059

Abstract

Mangrove degradation and socio-economic vulnerability in the Kendal coast require an integrated approach. The study used ecological surveys (mangrove vegetation analysis, avifauna) and socio-economic (n=186 households). Integrated Coastal Management (ICM) analysis and model were developed using a dynamic approach, encompassing problem identification, conceptual model formulation, and validation preparation. 14 mangrove species (H' index = 1.58–1.80) and 61 bird species (H' = 3.50) were found. Community participation reached 97%, but women's participation was only 3%, with 58% of households being landless and 61% unproductive land. Infrastructure was severely damaged (36% of roads) and 97% of the area was flooded. The dynamic model of ICM in Kendal Regency highlighted coastal biodiversity conservation, enhanced community capacity and participation, and secure land ownership as the primary drivers of sustainable coastal governance. Despite ongoing pressures from coastal hazards and urban expansion, biodiversity conservation remained the pivotal intervention, sustaining ecosystem integrity, improving household incomes, and reinforcing socio-economic resilience through positive feedback loops within the coastal social–ecological system. 
Co-Authors Abdul Rauf Chaerudin Addini, Jihan Timur Aini, Maqfiroh Intan Nurul Akmal, Muhamad Roihan Alamsyah, Muhammad Radian Nur Alfathqi, Rheza Rizky AlGhufron, Mohamad Nizar Andin Irsadi Andin Vita Amalia, Andin Vita Anshari, Gusti Zakaria Ariningrum, Novita Dwi Aryo Pinandito Atunnisa, Rifa' Atunnisa, Rifa’ Awati, Desiana Fitri Az-Zahra, Salma Fatimah Az-Zahra, Sheeny Bakri, Sitty Nur Syafa Bayinah, Isnainatul Chasanah, Aisya Nurul Chiuloto, Kalvin Deanova, Dendhie DWI RAHMAWATI Eldin Khair, Amar Sharaf Erna Noor Savitri, Erna Noor Ershanti, Agnes Dewi Wuri Evi Gusmayanti Fadil Syamsa, Muhammad Fauziyyah, Istiqomah Ifnan Febriyanto, Hendra Fitri, Revieta Noor Gunawan, Mahendra Habil Sultan Hamdani, Adib Afriza Hamzaturrazak, Multohadi Haris, Amnan Hartanto, Naufal Hartanto, Toni Hasnaningtiyas, Siti Heriyanti, Andhina Putri Herol, Herol Hidayah, Harun Syamsudin Nur Holeng, Vera Angelina Ika Sukmawati, Ika Iskandar, Aldy Jamaludin . Jati, Elisabeth Gita Damar Julpa, Ira Sopiana Kamaruddin, Azlina Kholil, Putri Alifa Kuswati, Fitri Yunda Ladamay, Ode Moh Man Arfa Latif, Mukhlis Abdul Listiaji, Prasetyo Lorensa, Dina Lukman M. Lolo, Nadyah Harnol Ma’ruf, Syamsul Azhar Qowwam Maharani, Saffira Alyda Marchelina, Shally Maryono, Iyon Mauliya, Durrotul Jahroo Melati, Inaya Sari Muhanniah, Muhanniah Mustikawati, Lenny Helmalia Mutiatari, Dhita Pracisca Nana Kariada Trimartuti Nanto Sriyanto, Nanto Naufal, Muhammad Ahganiya Nikmat Syarifuddin, Rifni Ni’matuzzahroh, Ni’matuzzahroh Norma Eralita Nur Atikah Parmin Prahmani, Yonika Sindiana Pratiwi, Andini Sukma Purwadi, Cintiya Egi Putri, Ade Anggun Wana Putri, Isria Miharti Maherni Putri, Rahmatia Prihantiny Putri, Rizda Amalia Rabbani, Raka Restu Rahayu, Endah Fitriani Rahmalidya, Alfia Rahmawati, Laila Zulaiha Amalia Ramadhan , Muh.Rohady Ramdan, Muhammad Ridho Fariz, Trida Rifa'atunnisa, Rifa'atunnisa Rizki Nor Amelia Rizkiyah, Nanda Puji Rizqi, Vira Dwi Martia Atta Rizqiyani, Rifa Sajida, Hanifa Putri Salma, Mila Rangga Lailatus Sanusi, Ratna Nur Mustika Sarwono, Muhammad Reza Daffauzan Setya Perdana, Rizal Shabrina, Dhiyanita Siregar, Zepanya Gladis Tabita Siswahyudianto Siti Herlina Dewi Siti Sawerah Sri Ngabekti Stephani Diah Pamelasari, Stephani Diah Sultan, Habil Sumarno Tiaraningrum, Fathia Hanif Trida Ridho Fariz Trihadianta, Mohammad Rifki Utama, Raditya Arinanda Wahid Akhsin Budi Nur Sidiq, Wahid Akhsin Budi Nur Wandari, Mellyana Putri Ayu Wijanaputri, Kania Okta Yahya Nur Ifriza Yolanda, Vera Cerelia Yusuf Wisnu Mandaya Zulfani, Sevianna Danah