Wastewater Treatment from Textile Softening in Finishing Process by Aluminum Electrocoagulation


Jaturun Anukulprasert,Kulyakorn Khuanmar,Panomchai Weerayutsil,




Softening in finishing process,Aluminum electrode ,Electrocoagulation,COD removal,


In textile industry, there is always wastewater which is hard to treat. It is usually caused from fiber softening in finishing process. In this experimental study, electrocoagulation technique was employed with 6 types of softeners with different features and functions. The wastewater was synthesized by dissolving softeners in the treated wastewater from textile factory to manipulate the characteristic of synthesized wastewater so that its matrix became close to real wastewater. In examination of the removal efficiency, COD and TOC were water quality indicators. The experiments revealed that COD and TOC treatment efficiency was not dependent on the softeners’ features and functions, but the efficiency could be indicated by testing the sludge based on SEM and EDX techniques. According to the analysis of the elements in the flocs from electrocoagulation process by EDX, the amount of Al in the flocs was high, which means the synthetic wastewater could be effectively treated. In addition, the analysis from SEM showed morphology of sludge, which could be classified into 3 groups: powder, chunk, and flat sheet. Note that the flat-sheet flocs were well precipitated.


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