Categorias: Todos - toxicity - bacteria - hydrocarbons - degradation

por Diana Solano 3 anos atrás

245

Use of bacteria for the remediation of sites contaminated by petroleum hydrocarbons

The use of bacteria for bioremediation involves leveraging microbial communities to degrade petroleum hydrocarbons in contaminated sites. Different bacterial genera are inoculated and grown under various conditions to optimize the breakdown of toxic compounds.

Use of bacteria for the remediation of sites contaminated by petroleum hydrocarbons

Use of bacteria for the remediation of sites contaminated by petroleum hydrocarbons

Samples

amounts of soil with concentrated hydrocarbons
bacteria isolated from contaminated soils
Gram -
Gram +
variety of aromatic hydrocarbons in bacterial communities

Results

viability
effective metabolic diversity
low cost
attenuation of the pollutant in a certain period of time
degradation of the pollutant
alkanes
heavy metals

the inoculation of bacteria had optimal growth and development under different conditions, showing that the degradability of toxic compounds is a fact in favor of this treatment.

There are bacteria that use oil as food and convert it into carbon dioxide and water, significantly reducing pollution in water sources and soils

Methodology used

additional methods
Effective Adsorbents
Biosurfactants
Fluidized-bed bioreactor
inoculation of bacterial consortia
quantification of microbial parameters

colony growth

formation of the degradation halo

different genera of bacteria

Environmental problem

danger due to toxicity levels
physical and chemical modification of the environment
habitat alteration