IMPACT OF BIO-COMPETITIVE EXCLUSION ON NITRATE-REDUCING BACTERIA IN OIL RESERVOIR WATER TREATMENT

<p>In the presence of nitrogen oxides, nitrate-reducing bacteria (NRB) may use nitrate as an electron acceptor, reduce to nitrite, and finally convert nitrite or ammonium (NO N2O). Studies have shown that BCX (Bio-Competitive Exclusion) is a viable , ecologically benign, low-cost technique for regulating NRB in its first phases study application. More precisely, Pseudomonas sp. isolate from oil-field wastewater using 16S rDNA sequencing selection (NRB). Including NO3 NO2 bio-activators has helped researchers get deeper understanding processes govern activation. The potential molybdate inhibit Sulfate-Reducing Bacteria (SRB) was also investigated. results showed more effective than NO3. effect greatest at 1:4 ratio NO2. activation synergized with low molybdic acid solution concentrations (5%). Static corrosion model experiments demonstrated importance SRB corroding process. Biological inhibitors were lowest rates, proving their effectiveness. Scanning microscopy used examine corroded steel sheet's surface morphology. In addition, there almost no pitting on sheet.</p>