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

Standard methods for the examination of water and wastewater: including bottom sediments and sludges , Standard methods for the examination of water and wastewater: including bottom sediments and sludges , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Standard methods for the examination of water and wastewater: including bottom sediments and sludges

Ion exchange membranes: New developments and applications

A comprehensive review of electrocoagulation for water treatment: Potentials and challenges.

Electrocoagulation and advanced electrocoagulation processes: A general review about the fundamentals, emerging applications and its association with other technologies

Optimization and effect of pH on treatability of metal plating wastewater by electrocoagulation process: a pilot study

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Investigation of the treatability of paint industry wastewater using hybrid coagulant poly-aluminum-chloride-sulfate (PACS)

Textile industry is one of the sectors that consume plenty of water and this situation increases the threat of contamination on the receiving water environments. In this study, treatment method performances of chemical coagulation, electrocoagulation, Fenton and electrofenton for wool yarn dyeing effluents were investigated by considering COD and TOC parameters and; advantages and disadvantages of each process were evaluated. Response surface methodology (RSM) was applied to optimize Fenton process and, in order to achieve COD and TOC removed by 90.5% 77.4%, respectively, 143 minutes of reaction time was found to be required. Optimum pH for Fenton process was determined via RSM as 3.28 pH. The required Fe dosage and H2O2 dosage was found to be 1135 mg/L and 1822 mg/L, respectively. When Fenton, electrofenton, coagulation and electrocoagulation processes were compared in terms of COD removal, the most effective process is found to be Fenton process and 88%, 77%, 30% and 42% of COD removals were observed, respectively. When the amount of sludge formed per treated COD is compared, it was observed that the least sludge was obtained via electrofenton process in term kg sludge/kg COD, where the maximum sludge was obtained in chemical coagulation process with 73% higher than electrofenton.

Comparison of Chemical and Electrochemical Treatment Processes for Wool Yarn Dyeing Effluents

Supplies of fresh water on earth are limited, and the rapid growth of the global population is making the search for new sources a priority. Seawater is one such source, and currently, the most widely used desalination methods include membrane processes and evaporation, although both have their disadvantages. In this study, electrodialysis (ED) processes, which have been found to be successful in terms of ion removal, are analyzed with synthetic seawater being deionized using conventional electrodialysis (ED) and bipolar membrane electrodialysis (BMED) processes where the issue of concentrate minimization – currently the most significant drawback of the membrane processes – was resolved. The concentrate was reduced to around 0.5% using the ED method, which can be considered relatively good value when compared with the findings of previous studies. Furthermore, the BMED process also produced anolyte and catholyte chamber solutions at 0.5% concentrations, but as these concentrates are acid and alkaline, it is fair to say that the process has resulted in the production of zero waste. In the following stages, Marmara seawater was deionized under optimum operational conditions, and the deionized seawater values were found to be within the drinkable water tolerances specified by the World Health Organization.

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Fatih Ilhan

Papers

Optimization and effect of pH on treatability of metal plating wastewater by electrocoagulation process: a pilot study

Investigation of the treatability of paint industry wastewater using hybrid coagulant poly-aluminum-chloride-sulfate (PACS)

Comparison of Chemical and Electrochemical Treatment Processes for Wool Yarn Dyeing Effluents

Investigation of seawater deionization using the minimization technique with electrodialysis processes (CED-BMED)