D uring exponential phase, bacteria will utilize amino acid and breed rapidly, while the concentration of DOC, DON and TOC decrease.

• 进入细菌生长的指数期,细菌繁殖迅速,消耗体系中的氨基酸,转化为颗粒态形式,此时溶解有机碳、溶解有机氮和总有机碳浓度均降低。