Effect of electrogenerated hydroxyl radicals, active chlorine and organic matter on the electrochemical inactivation of Pseudomonas aeruginosa using BDD and dimensionally stable anodes

Abstract

Effect of electrogenerated hydroxyl radicals, active chlorine and organic matter on the electrochemical inactivation of Pseudomonas aeruginosa using BDD and dimensionally stable anodes, Separation and Purification Technology (2017),

An electrochemical advanced oxidation process (EAOP) for the inactivation ofRhizoctonia solaniin fertigation solutions

“…The highest current density tested (9.09 mA cm −2 ) resulted in complete inactivation of R. solani at a 1 min contact time. Although the addition of 20 mg L −1 chloride substantially improved inactivation in comparison to previous research with RuO 2 DSA electrodes, the required current density was considerably higher (9.09 mA cm −2 for BDD vs. 6.82 mA cm −2 for DSA) and the contact time is twice that required for RuO 2 DSA (1 min for BDD vs. 30 s for RuO 2 DSA) (Bruguera-Casamada et al 2017;Lévesque et al 2019). Despite this, the BDD-based electrochemical process was able to completely inactivate R. solani more effectively than conventional chlorination methods (Cayanan et al 2009).…”

“…2 ) in the bulk solution (Michaud et al 2003;Diao et al 2004;Jeong et al 2006;Kraft 2008;Bruguera-Casamada et al 2017;Liang et al 2018). OH • are thought to be the major ROS player in these systems (Diao et al 2004), although inactivation attributable to OH • in these systems is limited to the immediate vicinity of the electrode due to OH Pagination not final (cite DOI) / Pagination provisoire (citer le DOI) to the cell membrane, which ruptures and releases cell constituents, leading to inactivation (Diao et al 2004).…”

Degradation of hydroxychloroquine by electrochemical advanced oxidation processes

“…Electrochemical advanced oxidation processes (EAOPs) are among the processes capable to mineralize a myriad of organic micropollutants or transform them into substances easy to biodegrade [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] . The high efficacy of EAOPs is correlated to the electrogeneration of strong oxidants including hydroxyl radicals from the oxidation of the water [30] , [31] , [32] , [33] , and persulfates [34] , [35] , active chlorine [36] , [37] , [38] , [39] , and others [40] , [41] from the oxidation of supporting electrolyte anions. The electrogenerated oxidants contribute in the degradation of organic and inorganic pollution contained in aqueous solution.…”

Disinfection of urine by conductive-diamond electrochemical oxidation

“…The second mechanism, indirect disinfection, consists of the attack of disinfectant species (usually chlorine derivatives) to microorganisms contained in wastewater. These species can be directly added to the effluent or be generated in situ during the treatment [28][29][30]. In this context, the composition of the synthetic urine used in this work presents large amounts of chlorides which can be electrooxidized, favoring the production of chlorine and…”