The ennoblement of EOCP was similar to the bacteria number increasing: EOCP increased quickly during bacteria adsorption process and increased slowly after biofilms had formed.

• 开路电位在微生物附着过程中迅速增加，微生物附着达到平衡后钝态金属开路电位增加缓慢。这说明在微生物附着初期对钝态金属电位正移影响最大，随后阶段影响逐渐减弱。