Windrow Composting of Food and Yard Wastes
Organic waste from public consumption is a problem for waste management. The university campus in Tambol Salaya, Nakorn Prathom Province, a community with a large population, needed to find effective strategies for sustainable waste management. This study aimed to find a proper solution for tw...
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Main Authors: | , , , , , , , , , |
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Other Authors: | |
Format: | Original Article |
Language: | English |
Published: |
2021
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Subjects: | |
Online Access: | https://repository.li.mahidol.ac.th/handle/123456789/63732 |
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Institution: | Mahidol University |
Language: | English |
Summary: | Organic waste from public consumption is
a problem for waste management. The university
campus in Tambol Salaya, Nakorn Prathom
Province, a community with a large population,
needed to find effective strategies for sustainable
waste management. This study aimed to find a
proper solution for two major organic wastes,
food and yard wastes. Windrow composting was
investigated at different conditions including
mixing ratios and aerations in the fi eld experiment
for 8 weeks. The organic wastes and composted
material samples were analyzed for physical and
chemical characteristics including moisture content,
temperature, pH, organic matter, total nitrogen,
total phosphorus and total potassium. Two way
ANOVA analysis and LSD post-hoc test were
used for statistical analysis. The results showed
that food waste had high nitrogen and moisture
content while yard waste had high organic carbon.
To compost the organic materials without aeration
supply conditions revealed signifi cant difference
(p < 0.05) in higher composting temperature
while the higher mixing ratio could signifi cantly
increase (p<0.05) organic matter. The composting
was fi nished at week 8 and composted materials
had a lower temperature and neutral pH. The
nutrients, nitrogen and phosphorus were increased
whereas potassium was slightly decreased, thus
they could match with the organic fertilizer standard.
The food yard waste ratio of 1:1, without aeration
was a suitable organic composting condition.
The fi ndings can also be used as an application
criterion for other communities which recycle
nutrients back to the environment. |
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