Hydrochar from Agricultural Waste as a Biobased Support Matrix Enhances the Bacterial Degradation of Diethyl Phthalate

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1167 - 1167

Published: March 5, 2025

The hydrothermal carbonization (HTC) of biomass presents a sustainable approach for waste management and production value-added materials such as hydrochar, which holds promise an adsorbent support matrix bacterial immobilization applied, e.g., bioremediation processes sites contaminated with phthalate ester plasticizers diethyl (DEP). In the present study, hydrochar was synthesized from vine shoots (VSs) employing following parameters during HTC process: 260 °C 30 min 1:10 (w/v) biomass-to-water ratio. resulting (VSs-HC) characterized porosity, elemental composition, structural properties using Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Spectroscopy (EDX), Raman spectroscopy. Elemental analysis confirmed presence key elements in VSs structure, essential char formation process. VSs-HC exhibited macroporous structure (>0.5 μm), facilitating (DEP) adsorption, adhesion, biofilm formation. Adsorption studies showed that achieved 90% removal rate 4 mM DEP within first hour contact. Furthermore, VS-HC tested consortium (Pseudomonas spp. Microbacterium sp.) known to degrade DEP. immobilized on demonstrated enhanced tolerance toxicity, degrading 76% 8 24 h, compared 14% by planktonic cultures. This study highlights VSs-HC's potential cost-effective material environmental bioremediation, offering cell viability, improved formation, efficient plasticizer removal. These findings provide pathway mitigating pollution through scalable low-cost solutions.

Language: Английский

The Potential of Immobilized Bacteria for Pollutant Bioremediation in The Environment: Systematic Review

BIOVALENTIA Biological Research Journal, Journal Year: 2025, Volume and Issue: 11(1), P. 67 - 82

Published: April 21, 2025

The Environmental pollution caused by industrial waste including oil spills have become a global issue that requires effective and environmentally friendly solutions. Bioremediation used bacteria immobilized has been develop as promising method for pollutant degradation, because it can increase the stability activity of microorganism under various condition in environment. This study is systematic review to evaluate technique adsorption, entrapment, adsorption-embedding, cross linking techniques effectiveness hydrocarbon, crude oil, heavy metals remediation. collates vast amount existing literature on myriad contaminants treated using bacteria. Based reviewed article, immobilization such entrapment cross-linking were frequently reported enhance degradation performance, particularly bioremediation. consistently demonstrated high across different environmental conditions. factors, pH, concentration surfactant availability an important role success Although, this technology enhances bacterial resilience biodegradation efficiency, challenges hight cost materials limitations extreme environment application remain problem. optimization potential provide sustainable solution bioremediation

Language: Английский