2 research outputs found
Integrating life cycle assessment and machine learning to enhance black soldier fly larvae-based composting of kitchen waste
Around 40% to 60% of municipal solid waste originates from kitchens, offering a valuable
resource for compost production. Traditional composting methods such as windrow, vermi-, and
bin composting are space-intensive and time-consuming. Black soldier fly larvae (BSFL) present a
promising alternative, requiring less space and offering ease of handling. This research encompasses
experimental data collection, life cycle assessment, and machine learning, and employs the Levenberg–
Marquardt algorithm in an Artificial Neural Network, to optimize kitchen waste treatment using
BSFL. Factors such as time, larval population, aeration frequency, waste composition, and container
surface area were considered. Results showed that BSFL achieved significant waste reduction, ranging
from 70% to 93% by weight and 65% to 85% by volume under optimal conditions. Key findings
included a 15-day treatment duration, four times per day aeration frequency, 600 larvae per kilogram
of waste, layering during feeding, and kitchen waste as the preferred feed. The larvae exhibited a
weight gain of 2.2% to 6.5% during composting. Comparing the quality of BSFL compost to that
obtained with conventional methods revealed its superiority in terms of waste reduction (50% to 73%
more) and compost quality. Life cycle assessment confirmed the sustainability advantages of BSFL.
Machine learning achieved high accuracy of prediction reaching 99.5%.Web of Science1516art. no. 1247
Metal(II) triazole complexes: Synthesis, biological evaluation, and analytical characterization using machine learning-based validation
The synthesis of many transition metal complexes containing 3,5-diamino-1,2,4-triazole (Hdatrz) as a ligand with different counter anions Br⎺, Cl⎺, ClO4⎺ and SO42- has been studied extensively, but the chemistry of transition metal nitrate and acetate compounds and their reactivity are relatively unexplored. In this research work, two new series of metal(II) complexes (M = Ni, Co, and Zn) {[Ni3(Hdatrz)6(H2O)6](NO3)6 (1), [Co3(Hdatrz)6(H2O)6](NO3)6 (2), [Zn3(Hdatrz)6(H2O)6](NO3)6 (3), [Ni3(Hdatrz)6(H2O)6](OAc)6 (4), [Co3(Hdatrz)6(H2O)6] (OAc)6 (5) and [Zn3(Hdatrz)6(H2O)6](OAc)6 (6)} have been synthesized. These synthesized complexes were characterized by various physicochemical techniques such as UV-vis spectroscopy, Fourier transform infrared spectroscopy, and magnetic susceptibility measurements. All six complexes were found to be trinuclear and bridged through the Hdatrz ligand. Spectral data suggested a distorted octahedral environment around the central metal ions in these complexes. It also revealed that the NH and OH groups are involved in hydrogen bonding. These complexes were tested against the fungal strains Colletotrichum gloeosporioides and Aspergillus niger. These synthesized complexes have not been observed to have antifungal activities. The machine learning K-nearest neighbours evaluates the analytical characteristics and solubility behavior of the metal complexes. Machine learning models provide results with 75% precision