“A study on the inhibitory effect of some synthesized surfactants against biofilms to mitigate microbial corrosion”

Abstract

Sulfate reducing bacteria are considered as the major cause of microbial induced corrosion. It contributes to a lot of environmental and other major industrial problems in petroleum industry. In this work, three Schiff base cationic surfactants coded (Q12, Q14 and Q18) were synthesized and characterized using FT-IR and1H-NMR techniques. Mixed culture of SRB collected from an oil field production tank located in North Bahrya Petroleum Company (NORPETCO), Egypt. Metagenomic analysis using next generation sequencing technique was used to identify and characterize the microbial community of collected samples. The antimicrobial effect of the new synthesized surfactants was studied against the target SRB along its different growth phases by different methods; viable cell count via most probable number method, estimation of biogenic sulfide concentrations, weight loss of iron coupons in microbial growth medium and biofilm examination on coupon surfaces using scanning electron microscope.