18 research outputs found
Influence of wastewater treatment plants' operational conditions on activated sludge microbiological and morphological characteristics
Replicability of dominant bacterial populations after long-term surfactant-enrichment in lab-scale activated sludge
Population Dynamics of Bulking and Foaming Bacteria in a Full-scale Wastewater Treatment Plant over Five Years
Sustainable multistage process for enhanced productivity of bioplastics from waste remediation through aerobic dynamic feeding strategy: Process integration for up-scaling
Comparative evaluation of the microbial community in biological processes treating industrial and domestic wastewaters
Diversity and dynamics of dominant and rare bacterial taxa in replicate sequencing batch reactors operated under different solids retention time
Support vector regression model of wastewater bioreactor performance using microbial community diversity indices: Effect of stress and bioaugmentation
Ex-situ bioremediation of Brazilian soil contaminated with plasticizers process wastes
The aim of this research was to evaluate the bioremediation of a soil contaminated with wastes from a plasticizers industry, located in São Paulo, Brazil. A 100-kg soil sample containing alcohols, adipates and phthalates was treated in an aerobic slurry-phase reactor using indigenous and acclimated microorganisms from the sludge of a wastewater treatment plant of the plasticizers industry (11gVSS kg-1 dry soil), during 120 days. The soil pH and temperature were not corrected during bioremediation; soil humidity was corrected weekly to maintain 40%. The biodegradation of the pollutants followed first-order kinetics; the removal efficiencies were above 61% and, among the analyzed plasticizers, adipate was removed to below the detection limit. Biological molecular analysis during bioremediation revealed a significant change in the dominant populations initially present in the reactor