10.57647/ijrowa-12rr-zv45

Composting of coffee husk waste as circular economy practice in local coffee bean production

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  • I Made Wahyu Wijaya*1,
  • Ni Gusti Agung Gde Eka Martiningsih2,
  • I Gusti Agung Sri Rwa Jayantini3,
  • Gde Bagus Brahma Putra4,
  • I Gusti Ngurah Made Wiratama5,
  • Fransiskus Vebryan Kenedy5,
  1. Rural and Regional Planning Study Program, Postgraduate Program, Universitas Mahasaraswati Denpasar, Indonesia
  2. Agribusiness Study Program, Faculty of Agriculture and Business, Universitas Mahasaraswati Denpasar, Indonesia
  3. English Department, Faculty of Foreign Languages, Universitas Mahasaraswati Denpasar, Indonesia
  4. Accounting Study Program, Faculty of Economy and Business, Universitas Mahasaraswati Denpasar, Indonesia
  5. Environmental Engineering Study Program, Faculty of Engineering, Universitas Mahasaraswati Denpasar, Indonesia
Composting of coffee husk waste as circular economy practice in local coffee bean production

Received: 2024-05-03

Revised: 2024-09-06

Accepted: 2024-11-26

Published in Issue 2025-10-01

Published Online: 2024-12-03

Copyright (c) 2024 I Made Wahyu Wijaya, Ni Gusti Agung Gde Eka Martiningsih, I Gusti Agung Sri Rwa Jayantini, Gde Bagus Brahma Putra, I Gusti Ngurah Made Wiratama, Fransiskus Vebryan Kenedy (Author)

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Wijaya, I. M. W., Martiningsih, N. G. A. G. E., Jayantini, I. G. A. S. R., Putra, G. B. B., Wiratama, I. G. N. M., & Kenedy, F. V. (2025). Composting of coffee husk waste as circular economy practice in local coffee bean production. International Journal of Recycling of Organic Waste in Agriculture, 14(4). https://doi.org/10.57647/ijrowa-12rr-zv45
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Abstract

Purpose: This study aims to investigate the composting process and characteristic of coffee husk waste to transform it into organic fertilizer, addressing the urgent need for repurposing coffee husk waste and promoting sustainable agricultural practices.

Method: The composting process involved collecting coffee husk waste from the UD Cipta Lestari coffee factory, enriching it with goat faeces, and supplementing it with dolomite and an EM4 bio activator. We monitored the temperature and pH levels throughout the composting process and characterized the compost yield for key physicochemical parameters with duplicate sampling at the end of the composting process (76 and 67 days).

Result: The composting process yielded promising results, with notable variations observed in pH, organic matter content, total nitrogen, available phosphorus, available potassium, moisture content, and C/N ratio across the four samples. KK B2 demonstrated particularly favourable results across multiple parameters, indicating its potential as a high-quality organic fertilizer.

Conclusion: While all samples met the requirements for composting and soil amendment, KK B2 exhibited superior characteristics, including higher levels of organic carbon, total nitrogen, and available potassium. However, selecting the most suitable compost for specific agricultural needs should consider a holistic evaluation of all parameters and local soil conditions. Overall, the study underscores the potential of composting as a sustainable solution for repurposing coffee husk waste and promoting soil health in agricultural systems. Further optimization of composting conditions and management practices could enhance the quality and consistency of the final compost yield, contributing to sustainable waste management and agricultural productivity in coffee-producing regions.

Research Highlights

  • This study aims to investigate the composting process and characteristics of coffee husk waste to transform it into organic fertilizer
  • The composting process involved collecting coffee husk waste from the UD Cipta Lestari coffee factory, enriching it with goat feces, and supplementing it with dolomite and an EM4 bio activator.
  • The composting process yielded promising results with notable variations observed in pH, organic matter content, total nitrogen, available phosphorus, available potassium, moisture content, and C/N ratio across the four samples.
  • KK B2 demonstrated particularly favorable results across multiple parameters, indicating its potential as a high-quality organic fertilizer.
  • The study underscores the potential of composting as a sustainable solution for repurposing coffee husk waste and promoting soil health in agricultural systems.

Keywords

  • Coffee husk,
  • Composting,
  • Organic,
  • Circular economy
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