Study on separation of textiles dye by nanofiltration technology

Marcos Edward Jay, Edward Jalin (2010) Study on separation of textiles dye by nanofiltration technology. [Final Year Project Report] (Unpublished)

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Abstract

In Malaysia, textiles dye industry is not a new business since it has been run for many years ago from old generation. Known locally as Batik Industries, they are traditionally inherited from generation to generation. Batik making even is one of the attraction in tourism especially in the east Malaysia and contribute profit to country in terms of economy. However, this industry produces wastewater which contributes to water pollution since it utilizes a lot of chemicals. This project mainly focuses on the use of Nanofiltration membrane separation processes to remove the suspended dissolved solid from wastewater of batik industry. With the fabrication of a suitable experimental rig, the effect of dye concentration, dye pH, and operating pressure were studied. Data on the pH, pressure and rejection together with the average values for each of the parameters studied were presented systematically. The results show that the dye concentration, pH of dye, and the operating pressure was found to affect the filtration process. The experiment revealed the best separation occurring at neutral pH7 due to mechanism of flocculation of dye particles. Higher rejection increases with the increasing pressure due to the increasing of driving force to overcome resistance. The data collected could be used to improve the effectiveness of dye removal from the batik industry wastewater using membrane technology.

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