Electrochemical reduction of different Ag(i)-containing solutions in bioelectrochemical systems for recovery of silver and simultaneous power generation.

ABSTRACT: In this study, dual-chamber bioelectrochemical reactors (i.e., R1, R2, R3, and R4) were employed to investigate the Ag recovery and electricity production from different Ag(i)-containing artificial wastewaters (i.e., Ag⁺ solution, [Ag(NH₃)₂]⁺ and [Ag(S₂O₃)₂]^3- complexes, and mixed metal solution). Results showed that the electrochemical reductions of Ag(i) ions in all reactors were rapid reactions. The reaction rate in R1 was the fastest. At the same initial conditions (i.e. Ag(i) concentration of 1000-1080 mg L^-1), the Ag recovery efficiency was 81.8% for R3 operated with the [Ag(S₂O₃)₂]^3- complex. Although high Ag removal effi

SUBMITTER: Ho NAD 

PROVIDER: S-EPMC9072089 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature