Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/157926
Title: Plant ash augmented enzymatic hydrolysis approach for ultrafast conversion of food waste to biofertilizers
Authors: Tan, Tiffany Rou Jie
Keywords: Engineering::Environmental engineering::Waste management
Issue Date: 2022
Publisher: Nanyang Technological University
Source: Tan, T. R. J. (2022). Plant ash augmented enzymatic hydrolysis approach for ultrafast conversion of food waste to biofertilizers. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/157926
Project: EN22
Abstract: This study developed an augmentation approach of the enzymatic hydrolysis of food waste using plant ash with the fungal mash produced in situ from food waste as well. The mixture of food waste, fungal mash and different concentrations of plant ash were prepared for hydrolysis. After the 8-h hydrolysis, the hydrolysate solid and liquid were separated. The results show that the NPK contents in both produced hydrolysate solid and liquid can meet the requirements for biofertilizer. To find out the suitable concentration of plant ash that provides the most favourable results, a field planting trial was carried out using a commonly consumed leafy vegetable, xiao bai cai (Brassica rapa), by the addition of food waste-derived biofertilizers in place of commercial biofertilizers. The results of the field planting trial show that the biofertilizers produced with augmentation of 15% and 30% plant ash (w/w food waste) provided results that are comparable to the growth of xiao bai cai from commercial biofertilizers. As such, it is suggested that hydrolysis of food waste with 15% or 30% plant ash (w/w food waste) and the fungal mash produced in situ from food waste could produce biofertilizers which favour the growth of plants. Hence, this may be another option in food waste management to achieve the ultimate target of zero waste discharge.
URI: https://hdl.handle.net/10356/157926
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:CEE Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
EN22_Tiffany Tan Rou Jie_FYP_Final Report.pdf
  Restricted Access
1.36 MBAdobe PDFView/Open

Page view(s)

25
Updated on Dec 1, 2022

Download(s)

3
Updated on Dec 1, 2022

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.