Unveiling the promise of biosorption for heavy metal removal from water sources

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100523 - 100523

Published: June 12, 2024

Heavy metals represent a significant contributor to water pollution, posing serious environmental and health risks due human activities industrialization. The release of heavy metal contaminants into sources has spurred extensive research wastewater treatment methods, including precipitation, evaporation, ion exchange, membrane processes, electroplating. However, these conventional techniques often prove costly, limited in effectiveness, may inadvertently exacerbate pollution concerns. This review underscores biosorption as highly promising alternative for effectively removing harmful ions from sources. Biosorption, physical technique, capitalizes on mechanisms such surface complexation, leveraging more economical biological materials biosorbents. Microorganisms, encompassing bacteria, fungi, algae, plant products, emerge pivotal agents biosorption, offering sustainable cost-effective approach. There is growing interest harnessing local microbiota aiming mitigate contamination without adverse impacts. Notably, both living deceased fungal biomass have garnered attention adsorbents eliminating solutions. behavior presents numerous advantages, warranting further fully exploit its potential endeavors.

Language: Английский

Tailor-made bioremediation regime for the specific recalcitrance posed by crude oil leachate

Bioremediation Journal, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: March 24, 2025

The present study addresses the critical problem of remediation crude oil leachate, which is generated through leaching highly recalcitrant and solubilized fractions from petroleum hydrocarbon-contaminated sites presents a significant environmental hazard. leachate used in this showed BOD/COD ratio 0.14, indicating high dominance fraction. Eight bacterial strains were selected based on their ability to solubilize degrade leachate. isolates biosurfactant production 0.04–0.73% facilitated solubilization, biodegradation 43.95–87.91%. Bacillus licheniformis highest degradation as well among all. consortium all 8 was then optimize improve performance. Maximum 65.19% obtained at pH 7, 30 °C 1% inoculum concentration. First-order kinetic modeling that specific rate (k) 0.16/day 5% reduced 0.05/day 25% concentration, representing inhibitory action effectiveness also analyzed leachate-contaminated soil microcosm. Phytoremediation using Typha latifolia microbe-assisted phytoremediation served complementary treatment approaches. maximum 86.86% observed by phytoremediation, synergistic both plants microbes GC-FID analysis confirmed reduction components different bioremediation treatments, while there minimal change control set. microbial revealed increase total count proportion degrading bacteria treatments compared with 2.8 fold 27.6% for success bioremediation. remediated samples very low or no mutagenic risk set Ames test, method.

Language: Английский