A Novel Packed-bed Electrocatalysis Reactor (PBECR) for Efficient Degradation of Organic Compounds

Abstract

In this paper, a novel packed-bed electrocatalysis reactor (PBECR) composed of titanium dioxide coated activated carbon (TiO 2 /AC) was presented for efficient wastewater treatment. The TiO 2 /AC in the PBECR could provide numerous convergent-divergent access tubes for organic compounds (OC) that can eliminate AC plugging to ensure operation permanence in electrochemical oxidation. Further, the employment of TiO 2 /AC is beneficial to shorten phenol degradation pathway and decrease poisonous intermediate accumulation. In addition, the PBECR show perfect electrode performance in treating landfill leachate, validating the broad applicability of the proposed process. It was found that the electrode area expansion and short-circuit avoidance by TiO 2 are the main factors in enhancement of OC oxidation kinetics, which are different from mechanisms of those photoprocesses. These observations can be of considerable technological and theoretical values and facilitate to be extended to wide applicable ranges of TiO 2 .

The modeling gap: What we are missing between molecular dynamics of electrode reactions and simulation of battery packs

“…Even today this contrast persists, only recently packed bed electrodes, i.e. porous bodies, have been suggested for some electroorganic processes [1]. The reasons are wellknown: Many of the electrode reactions in the latter devices proceed at fairly low rates causing possibly large charge transfer overpotentials.…”