Treatment of textile wastewaters using Eutectic Freeze Crystallization
D G Randall1, C Zinn2, A E Lewis2
1Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch, 7701, Cape Town, South Africa E-mail: dyllon.randall@gmail.com; Aurecon Centre, Lynnwood Bridge Office Park, 4 Daventry Street, Lynnwood Manor, 0081, Tshwane, South Africa.
Abstract:
A water treatment process needs to recover both water and other useful products if the process is to be viewed as being financially and environmentally sustainable. Eutectic Freeze Crystallization (EFC) is one such sustainable water treatment process that is able to produce both pure ice (water) and pure salt(s) by operating at a specific temperature. The use of EFC for the treatment of water is particularly useful in the textile industry because ice crystallization excludes all impurities from the recovered water, including dyes. Also, EFC can produce various salts with the intention of reusing these salts in the process. This study investigated the feasibility of EFC as a treatment method for textile industry wastewaters. The results showed that EFC can be used to convert 95% of the wastewater stream to pure ice (98% purity) and sodium sulfate.
More Related Videos
13:35Plunge Freezing: A Tool for the Ultrastructural and Immunolocalization Studies of Suspension Cells in Transmission Electron Microscopy
Published on: May 5, 2017
10:30Design and Construction of Artificial Extracellular Matrix aECM Proteins from Escherichia coli for Skin Tissue Engineering
Published on: June 11, 2015
Related Concept Videos
Recrystallization: Solid–Solution Equilibria
Washing, Drying, and Ignition of Precipitates
