Electrocoagulation for the treatment of textile industry effluent--a review

Electrocoagulation process in water treatment: A review of electrocoagulation modeling approaches

The electrocoagulation (EC) process is an electrochemical means of introducing coagulants and removing suspended solids, colloidal material, and metals, as well as other dissolved solids from water and wastewaters. The EC process has been successfully employed in removing pollutants, pesticides, and radionuclides. This process also removes harmful microorganisms. More often during EC operation, direct current is applied and electrode plates are sacrificed (dissolved into solution). The dissolution causes an increased metal concentration in the solution that finally precipitates as oxide precipitates. Due to improved process design and material of construction, the EC process is being widely accepted over other physicochemical processes. Presently, this process has gained attention due to its ability to treat large volume and for its low cost. The aim of this study is to review the mechanism, affecting factors, process, and application of the electrocoagulation process.

Treatment of wastewater by electrocoagulation: a review.

A review of the literature published in from 2008 to 2010 on topics related to electrochemical treatment within wastewater was presented. The review included several sections such as optimization, modeling, various wastewater treatment techniques, analytical and instrumentation, and comparison with other treatment methods.

https://engagedscholarship.csuohio.edu/cgi/viewcontent.cgi?article=1108&context=encee_facpub

Electrocoagulation in Wastewater Treatment

In the present work, electrocoagulation was applied for the colour removal of solutions containing Direct red 81. Experiments were performed for synthetic solutions in batch mode. The study focuses on the effect of following operational parameters: electrolysis time, current density, initial pH, inter-electrode distance, initial dye concentration and type of supporting electrolyte. The obtained results showed that decolouration optimal conditions are the following: initial pH of about 6, current density of 1.875 mA/cm2, inter-electrode distance of 1.5 cm and finally the use of NaCl as supporting electrolyte. In best conditions, high decolouration efficiency was obtained, reaching more than 98% of colour removal. Fourier transform infrared spectroscopy (FTIR) analysis was used to characterize the residual EC by-product with and without the presence of dye.

Electrocoagulation process applied to wastewater containing dyes from textile industry

Study of COD and turbidity removal from real oxide-CMP wastewater by iron electrocoagulation and the evaluation of specific energy consumption

Adsorption treatment of oxide chemical mechanical polishing wastewater from a semiconductor manufacturing plant by electrocoagulation

Silica particles settling characteristics and removal performances of oxide chemical mechanical polishing wastewater treated by electrocoagulation technology

Shih-Yu Chang

Papers

Study of COD and turbidity removal from real oxide-CMP wastewater by iron electrocoagulation and the evaluation of specific energy consumption

Adsorption treatment of oxide chemical mechanical polishing wastewater from a semiconductor manufacturing plant by electrocoagulation

Silica particles settling characteristics and removal performances of oxide chemical mechanical polishing wastewater treated by electrocoagulation technology