Anaerobic Digestion Potential in Traditional Boarding School

Adelia Tsaltsani Bilqis, Ayik Abdillah, Siti Jahroh, Asaduddin Abdullah, Febriantina Dewi, Benny Tjahjono, Inaya Rakhmani, Cindy Rianti Priadi

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Abstract

There are approximately 36,600 religious boarding schools in Indonesia accommodating a student population of 3.4 million. Traditional religious boarding school is one of the most significant contributors to waste generation after housing. This study is aimed to measure waste generation and the potential to implement anaerobic digestion in traditional boarding schools. At Al Hikam Boarding School, with a population of 265 residents, the average daily waste generation was measured at 33.6 kg/day, with organic waste constituting 41.8%. Over three months, the study included the stages of seeding, acclimatisation, and operation of anaerobic digestion using organic waste generated by the boarding school and traditional buffet. With an input of 7.6 kg/day, the results showed that organic waste used had a pH, total solid (TS), volatile solid (VS), chemical oxygen demand (COD), and temperature of 6.1±0.38, 25±0.092%, 95±0.0054%TS, 453±188 g/L, and 29.5±1.12°C, respectively. The digester reported a volatile solid destruction (VSD) and chemical oxygen demand (COD) reduction of 91±0.015% and 89±0.081%, respectively. This produced biogas volume and methane yield of 805±219 L/day and 292±130 L.methane/kg.VS. So, anaerobic digestion with a Toren Biogas reactor is the recommended technology to manage organic waste at traditional boarding schools, with a potential reduction factor of 54%.

Original languageEnglish
Pages (from-to)1496-1505
Number of pages10
JournalInternational Journal of Technology
Volume14
Issue number7
DOIs
Publication statusPublished - 7 Dec 2023

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Funder

The author expresses gratitude for the study funding provided by The Indonesia Endowment Funds for Education (LPDP) through the United Kingdom-Indonesia Consortium for Interdisciplinary Sciences (UKICIS) Program Number 4345/E4/AL.04/2022. This collaboration comprises IPB University and the Ministry of Education, Culture, Research and Technology, with Universitas Indonesia, under the project number NKB-870/UN2.RST/HKP.05.00/2022. Furthermore, the authors are grateful to the Global Challenges Research Fund (GCRF) Networking Grants scheme GCRFNGR3/1211 for providing funding collaboration with Coventry University, as well as Al Hikam Boarding School as partners for the pilot study and the laboratory of the Environmental Engineering Study Program at Universitas Indonesia.

Keywords

  • Anaerobic digestion
  • Biogas
  • Boarding school
  • Organic waste treatment

ASJC Scopus subject areas

  • Engineering(all)
  • Strategy and Management
  • Management of Technology and Innovation

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