Treated swine water as amendment for coffee ground composting system

The rise in demand for coffee and pork has led to an increase in spent coffee grounds (SCG) and swine wastewater (SW) by-products. Commercial fertilizers, which harm the environment, need eco-friendly alternatives like compost. However, little research has focused on combining SCG and SW for compost...

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Main Authors: Ng Camelia Choi Lam, Koh Kar Weng, Wong Lai Peng, Guo Xinxin, Wong Ling Yong
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_04020.pdf
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author Ng Camelia Choi Lam
Koh Kar Weng
Wong Lai Peng
Guo Xinxin
Wong Ling Yong
author_facet Ng Camelia Choi Lam
Koh Kar Weng
Wong Lai Peng
Guo Xinxin
Wong Ling Yong
author_sort Ng Camelia Choi Lam
collection DOAJ
description The rise in demand for coffee and pork has led to an increase in spent coffee grounds (SCG) and swine wastewater (SW) by-products. Commercial fertilizers, which harm the environment, need eco-friendly alternatives like compost. However, little research has focused on combining SCG and SW for composting. This study aims to characterize both SCG and SW and determine the optimal ratio for composting them, as well as their effectiveness when mixed with soil. Additionally, it examines the impact of using SW as a nutrient additive in SCG for organic fertilizer. SCG and SW were collected from local sources and characterized. Using the Berkeley Method, composting was conducted in a 1-meter-high and 0.6- meter-diameter cylindrical pile with a PVC net fence. After the mesophilic phase, the compost was mixed with organic soil and used to grow Bok Choy (Brassica rapa Chinensis) to assess its effects. Results showed that the CS 2 mixture (SCG, SW, and vegetable waste) provided optimal NPK nutrient concentrations and improved soil infiltration and porosity. However, further research is needed to confirm its impact on plant growth. In summary, combining SCG and SW offers a promising solution for reducing waste and commercial fertilizer use, supporting sustainable development goals.
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institution Kabale University
issn 2267-1242
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publishDate 2025-01-01
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series E3S Web of Conferences
spelling doaj-art-f9cabe6c571a4196897895ccc79ce4762025-02-05T10:47:34ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016030402010.1051/e3sconf/202560304020e3sconf_isgst2024_04020Treated swine water as amendment for coffee ground composting systemNg Camelia Choi Lam0Koh Kar Weng1Wong Lai Peng2Guo Xinxin3Wong Ling Yong4Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar BaratDepartment of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar BaratDepartment of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar BaratDepartment of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar BaratDepartment of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti Bandar BaratThe rise in demand for coffee and pork has led to an increase in spent coffee grounds (SCG) and swine wastewater (SW) by-products. Commercial fertilizers, which harm the environment, need eco-friendly alternatives like compost. However, little research has focused on combining SCG and SW for composting. This study aims to characterize both SCG and SW and determine the optimal ratio for composting them, as well as their effectiveness when mixed with soil. Additionally, it examines the impact of using SW as a nutrient additive in SCG for organic fertilizer. SCG and SW were collected from local sources and characterized. Using the Berkeley Method, composting was conducted in a 1-meter-high and 0.6- meter-diameter cylindrical pile with a PVC net fence. After the mesophilic phase, the compost was mixed with organic soil and used to grow Bok Choy (Brassica rapa Chinensis) to assess its effects. Results showed that the CS 2 mixture (SCG, SW, and vegetable waste) provided optimal NPK nutrient concentrations and improved soil infiltration and porosity. However, further research is needed to confirm its impact on plant growth. In summary, combining SCG and SW offers a promising solution for reducing waste and commercial fertilizer use, supporting sustainable development goals.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_04020.pdf
spellingShingle Ng Camelia Choi Lam
Koh Kar Weng
Wong Lai Peng
Guo Xinxin
Wong Ling Yong
Treated swine water as amendment for coffee ground composting system
E3S Web of Conferences
title Treated swine water as amendment for coffee ground composting system
title_full Treated swine water as amendment for coffee ground composting system
title_fullStr Treated swine water as amendment for coffee ground composting system
title_full_unstemmed Treated swine water as amendment for coffee ground composting system
title_short Treated swine water as amendment for coffee ground composting system
title_sort treated swine water as amendment for coffee ground composting system
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_04020.pdf
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AT wonglaipeng treatedswinewaterasamendmentforcoffeegroundcompostingsystem
AT guoxinxin treatedswinewaterasamendmentforcoffeegroundcompostingsystem
AT wonglingyong treatedswinewaterasamendmentforcoffeegroundcompostingsystem