D-tyrosine对碳钢表面铁细菌生物膜的杀菌增强作用机理研究

胥聪敏,罗立辉,王文渊,赵苗苗,田永强,宋鹏迪

Enhancing Sterilization Effect of Bactericide by D-tyrosine to Iron Bacterial Biofilm on Carbon Steel Surface

Congmin XU,Lihui LUO,Wenyuan WANG,Miaomiao ZHAO,Yongqiang TIAN,Pengdi SONG

表1 Q235B碳钢在含青海油田IOB培养基中腐蚀7 d后的失重结果

Table 1 Mass loss results of Q235B steel after corrosion for 7 d in Qinghai oilfield with IOB

Number Mixture ratio Annual corrosion depth / mm·a-1 Bactericidal rate / % Corrosion inhibition / % 1 No fungicides 0.258 --- --- 2 40 mg/L THPS 0.190 86.67 26.36 3 40 mg/L glutaraldehyde 0.215 58.33 16.67 4 40 mg/L D-tyrosine 0.203 0 21.32 5 40 mg/L THPS+1 mg/L D-tyrosine 0.178 98.73 31.01 6 40 mg/L glutaraldehyde+ 1 mg/L D-tyrosine 0.185 88.33 28.30