From waste to growth: Evaluating leachate sludge for sustainable plant cultivation
Due to a relatively high organic concentration, the leachate produced from landfills in Indonesia is typically treated using anaerobic processes at treatment plants. However, sludge accumulation in an anaerobic pond can reduce treatment capacity, and there are currently no guidelines for sludge util...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
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| Series: | Environmental Challenges |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667010025001751 |
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| Summary: | Due to a relatively high organic concentration, the leachate produced from landfills in Indonesia is typically treated using anaerobic processes at treatment plants. However, sludge accumulation in an anaerobic pond can reduce treatment capacity, and there are currently no guidelines for sludge utilization. This study aims to analyze the use of sludge derived from the leachate treatment plant at the Bandung city landfill site in Indonesia as a planting medium for Phaseolus vulgaris L. Different doses of the air-dried sludge (i.e., 25 %, 50 %, 75 %, and 100 %) were applied to a soil mixture for seedling growth prepared in pots. Additionally, the number and area of leaves were analyzed. The results indicated that plant growth was stunted as the sludge dose increased. Plants with a 25 % sludge dose continued to grow until the 41st day, while those with higher doses experienced plant death by the 10th day. The plants with a 25 % sludge dose exhibited the highest concentrations of metal accumulation in the roots compared to the stems and leaves, with zinc being the most abundant. The utilization of the anaerobic sludge at an appropriate dose is recommended as a planting medium for landfill revegetation activities. |
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| ISSN: | 2667-0100 |