Continuous electro-scrubbers for the removal of perchloroethylene: Keys for selection

• PCE removed continuously using packed column and jet-mixer electro-scrubbers. Important chemical reactivity of PCE. No significant improvement with the addition cobalt mediators. Better performance jet-mixers In this work, removal perchloroethylene (PCE) continuous-operation electro-scrubbers is evaluated. Two types were made by combining a jet mixer or absorption single flow-cell. The absorbent/electrolyte recirculated between both devices, being electrolyzed in cell retaining pollutant scrubber. scrubber’s system, an important amount was absorbed into electrolyte application electric current significantly improved results, highlighting efficiency integration technologies. Tests absence confirmed wet gas phase. system turned out to be more efficient than column, yielding better results electro-absorption modes, reaching greater 90%. Meanwhile, mediators did not improve electro-scrubbing as initially expected: case electro-scrubber there no changes while surprisingly it generated negative effect.