图4. 好氧生物膜下由EPS络合Fe3+引起的腐蚀过程和通过Fe-EPS络合物直接电子的传递过程[60]
Fig.4. Corrosion process in the presence of an oxygenated biofilm, owing to Fe3+binding by EPS (a) and electrons are transferred directly from the Fe0 to Fe-EPS (b)[60]