pH、ORP制约的产酸相发酵类型及顶级群落

由于利用效果存在一定差异，不同产酸相发酵类型的末端产物作为产甲烷细菌的底物，影响整个二相厌氧生物处理系统的稳定、高效运行。pH、ORP作为产酸相系统中的非生物因子，在一定程度上影响产酸相发酵类型的形成。本实验采用连续流搅拌槽式厌氧反应器（CSTR）考察并分析了特定pH、ORP组成对产酸相发酵类型决定情况，同时以种群生态学理论为基础，确立了受pH、ORP制约的不同发酵类型的顶级群落及优势种群。

Fermentation Type and Climax Community Controlled by pH,ORP

The different utilizing rate of the different fermentation production of acidogenic phase,as the substrates of methanogenic bacteria,will affect the stability and efficiency on the whole two-phase anaerobic bio-treatment.pH?ORP,as the non-biological factors to the operation of the acidogenic phase,can affect strongly on the fermentation types of acidogenic phase.With the continuous-flow stirred tank reactors(CSTR),the effects of special combinations of pH?ORP on the acidogenic phase were analyzed in this paper,also on the basis of population ecology,the different climax communities and dominant populations of different types of fermentation controlled by pH and ORP were summarized.