Recent Advances of Liquefied Petroleum Gas Sensors - From Environmental to Biotechnology Applications
Environmental
biotechnology aims at accelerating the biodegradation of petroleum contaminated
soils. It was demonstrated just six years ago that a consortium selected using
the combined molecular-stepwise discriminated function analysis approach was
more effective at degrading lubricant in contaminated sand than the single
cultured isolates. Agro-technical methods next involved tilling for maximum
oxygen exposure, watering, nutrient application, biopile addition to attenuate
the petroleum hydrocarbon (PHC) content, and phytoremediation treatments forcleanup.
In the experiments described, petroleum contamination of soils was
simulated under field conditions, the remedial treatments were then utilized
for cleanup. Analysis of soil parameters after a six-week study period showed
an increase in total heterotrophic bacteria (THB) counts across all the
treatments, with THB counts increasing with increment in soil nutrient level
and initial concentration of the contaminant. Last year, “petroleum-eating mushrooms”
broke new ground in environmental genomics. A Petri dish containing crude
petroleum would release a strong odor distinctive of the toxins that made up
the fossil fuel. Read more....................
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