Fig. 14. Three kinds of particle surface electron microscopy before and after the dynamic experimental reaction. (a) SEM surface structure micrographs of SRB sludge fixed particles without corncob before the dynamic experimental reaction. (b) SEM surface structure micrographs of unmodified corncob fixed SRB sludge particles before the dynamic experimental reaction. (c) SEM surface structure micrographs of modified corncob fixed SRB sludge particles before the dynamic experimental reaction. (d) SEM surface structure micrographs of SRB sludge fixed particles without corncob after the dynamic experimental reaction. (e) SEM surface structure micrographs of unmodified corncob fixed SRB sludge particles after the dynamic experimental reaction. (f) SEM surface structure micrographs of modified corncob fixed SRB sludge particles after the dynamic experimental reaction.