Figure 1. SEM images of (A) original untreated EWM and (B) pretreated EWM at 1000X magnification

From

Microbial Recovery of Gold Metal From Untreated and Pretreated Electronic Wastes by Wild and Mutated Cyanogenic Bacillus megaterium

Alshehri A.N.Z.

American Journal of Microbiological Research. 2018, 6(1), 14-21 doi:10.12691/ajmr-6-1-3