modern water treatment by electrochemical oxidation

One of the main advantages of electrodisinfection is the on-site production of disinfectants thereby the common drawbacks of chlorination including transportation and storage of hazardous chemicals can be avoided. The effectiveness of the process depends upon cell configuration, electrode material, electrolyte composition, microorganism, water flow rate, and current density. During electrochemical disinfection, the water is passed through an electrolytic cell which is equipped with a set of electrodes. Future researches would focus on integrating membranes processes such as nano filtration and reverse osmosis for safe removal of DBPs.ĭisinfecting water and wastewater electrochemically is a cost-effective and environmentally friendly alternative for the chemical disinfection. However, more efforts remain to be accomplished for water reuse vision. These improvements elevated electrochemical engineering efficiency and acceptation.

OH radicals in TiO 2 photocatalysis and photo-Fenton water treatment.Lately, new versions of electrochemical techniques have been suggested such as employing sulfate radical anion (4 SO This work focuses on the challenges and future tendencies for this highly-efficient technology to reach full-scale implementations particularly in disinfecting water. However, the expansion of this technology founded on electric current applying has been retarded by several technical-economic factors especially the detection of disinfection by-products (DBPs) formation. This will help to identify fit-for-purpose and niche opportunities for electrochemically-driven technologies.įor treating wastewater, electrochemical engineering has been rediscovered during the last four decades through the world for its inherent advantages comparatively with traditional technologies especially chemical and biological techniques. The coming study has to deal with the treatment of more realistic water matrices (i.e., composition and concentration). A shortage of comprehension in the pathways of electrode scaling and fouling has happened partially, because the most investigation is realized in batch reactors rather than continuous flow reactors where solutes and pathogens that noxiously influence setup efficiency pass by electrode surfaces. Electrochemically-driven techniques are earning importance thanks to encouraging findings noted in the literature. This work portrays a global view on killing different microorganisms by some usual EAOPs. Such methods are founded on electrochemically producing powerful oxidants like hydroxyl radicals ( Among such methods, the famous electrochemical advanced oxidation processes (EAOPs) have induced augmenting attention. During recent decades, study endeavors have been performed at elaborating more efficient techniques for handling waters carrying pathogens.

Modern water treatment by electrochemical oxidation