A review of electrocoagulation as a promising coagulation process for improved organic and inorganic matters removal by electrophoresis and electroflotation

Autor:	Djamel Ghernaout, Mohamed Wahib Naceur, Badiaa Ghernaout
Rok vydání:	2011
Předmět:	Chemical process Chromatography Chemistry medicine.medical_treatment Ocean Engineering Electrochemistry Pollution Electrocoagulation Electrophoresis Colloid Chemical engineering Scientific method medicine Coagulation (water treatment) Water treatment Water Science and Technology
Zdroj:	Desalination and Water Treatment. 28:287-320
ISSN:	1944-3986 1944-3994
DOI:	10.5004/dwt.2011.1493
Popis:	In drinking water treatment, coagulation is the most common process to remove particles and impurities. It is described as the process whereby particles are destabilised by dosing a chemical additive (coagulant) where charge neutralisation (CN) and sweep coagulation (SC) are the major mechanisms. Due to the encountered difficulties in natural organic matter (NOM) removal, the concept of enhanced coagulation (EnC) was introduced to increase NOM removal where CN is more accentuated. EnC must be well optimised to overcome its practical considerations such as adjusting the pH of the source water and residual metal concentration in the treated water. In the last three decades, there is new tendency to use electric field/electrochemistry in some chemical processes especially chemical coagulation (CC). Indeed, literature has proved that electrocoagulation (EC) is a promising water treatment technology. During EC process, there are two induced phenomena: electrophoresis (EP) and electroflotation (EF); separately,...
Databáze:	OpenAIRE
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