Room: Amazon
Date: Wednesday, 20 May 2026
Time: 15:00 - 16:00 CEST
Session code 6BO.8
Biochar and carbon-based materials
Microbial Valorization of Mung Bean Waste into a Multi-Nutrient Biofertilizer for Circular Agriculture
Short Introductive summary
Agricultural mung bean waste, a nutrient-rich lignocellulosic residue, was valorized into a multi-nutrient slow-release biofertilizer through microbial fermentation. Three lignocellulose-degrading bacteria—Paenibacillus glycanilyticus, Metabacillus endolithicus, and Pseudomonas citronellolis—were applied to accelerate organic matter decomposition and promote biomineralization. The process enabled the formation of crystalline phosphate minerals such as Ca2(P2O7), K2CaP2O7, and Mg-ammonium phosphate, stabilized by extracellular polymeric substances (EPS) under alkaline conditions. The resulting biofertilizer improved nutrient retention, soil fertility, and mung bean productivity while reducing dependence on chemical fertilizers. This study demonstrates an eco-efficient pathway for transforming agricultural residues into high-value biofertilizers, contributing to nutrient recycling, carbon neutrality, and the advancement of circular and low-carbon agricultural systems.
Presenter
Rujira DOLPHEN
King Mongkut's University of Technology Thonburi, THAILAND
Presenter's biography
Asst. Prof. Dr. Rujira Dolphen is a researcher at King Mongkut’s University of Technology Thonburi, specializing in wastewater treatment and adsorption, including phytoremediation, constructed wetland–MFC systems, and plant–microbe interactions, such as bioluminescence and VOC emissions.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
M. Trakarnphairot, King Mongkut's University of Technology Thonburi, Bangkok, THAILAND
C. Tresubsuntorn, King Mongkut's University of Technology Thonburi, Bangkok, THAILAND
Session reference: 6BO.8.1