Microbial remediation of petroleum polluted soil
Laen...
Kuupäev
2022
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian Academic Agricultural Society
Abstrakt
The issues of land pollution, restoration, and return of land
to agricultural cultivation are today. Especially, this is gaining new
relevance in modern conditions of military action on the territory of
Ukraine and other countries, which causes the reduction of cultivation
areas. Therefore, there is a need for maximum cleaning and restoration of
polluted soils to ensure environmental and food security. Petroleum
hydrocarbons are classified as major environmental pollutants due to their
stability and durability in the environment. The influence of petroleum
hydrocarbons is caused by direct toxic activity and by the soil environment
transformation. The research aimed: to study the effectiveness of probiotics
in the technology of soil cleaning and remediation; evaluate the phytotoxic
effect of oil-contaminated soil before and after the application of
probiotics; to find the optimal concentration of probiotics for the effective
cleaning and remediation of soil. The seedling method was used to
evaluate the phytotoxic effect of contaminated soil before and after the
application of probiotics. Research results showed an ambiguous impact
on Pisum sativum and Avéna satíva at different times after pollution. In
the initial phase, polluted soil has no significant influence on Pisum
sativum. For Avéna satíva soil, become toxic right away after pollution.
Phytotoxic effect of Pisum sativum and Avéna sativa decrease by the
indexes of seed emergence, roots length, roots weight, underground part
length and ground part weight due to probiotics treatment. The high
efficiency of biological remediation by probiotics in comparison with soil
cleaning in natural conditions is determined in the experiment. Probiotic
concentration 1:10 is the most effective of all studied initial concentrations
of pollutants. Reducing probiotic concentration leads to a decrease in the
efficiency of soil cleaning from petroleum products.
Kirjeldus
Saabunud / Received 10.05.2022 ; Aktsepteeritud / Accepted 28.07.2022 ; Avaldatud veebis / Published online 28.07.2022 ; Vastutav autor / Corresponding author: Anna Taranenko ; anna.taranenko@pdaa.edu.ua
Märksõnad
petroleum hydrocarbons, probiotics, Bacillus subtilis, polluted soil, phytotoxic effect, soil remediation, articles