Publications by authors named "Tiffany Q H Lum"
Article Synopsis
- Anaerobic digestion generates a large amount of digestate which can be used as organic fertilizer, but untreated digestate might contain harmful substances and can be hard to transport and store.
- The study tested two cost-effective methods: diluting the digestate for leafy vegetable growth and filtering it with biochar to recover nutrients, ultimately finding that both methods improved the digestate's effectiveness as a fertilizer comparable to commercial options.
- Results indicated that a 20-40% dilution and the use of biochar for nutrient filtration enhanced crop yields, making anaerobic digestate a viable and sustainable alternative to traditional fertilizers.
A wood waste-derived biochar was applied to food-waste anaerobic digestion to evaluate the feasibility of its utilisation to create a circular economy. This biochar was first purposed for the upgrading of the biogas from the said anaerobic digestion, before treating and recovering the nutrients in the solid fraction of the digestate, which was finally employed as a biofertilizer for the organic cultivation of three green leafy vegetables: kale, lettuce and rocket salad. Whilst the amount of CO the biochar could absorb from the biogas was low (11.
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