Textile

harafat's picture

Simple Physical Treatment for the Reuse of Wastewater from Textile Industry in the Middle East

Journal Title, Volume, Page: 
Journal of Environmental Engineering and Science, Volume 6, Issue 1, pages 115 –122
Year of Publication: 
2007
Authors: 
Hassan A Arafat
Chemical Engineering Department, An-Najah National University, P.O. Box 7, Nablus, Palestine
Current Affiliation: 
Department of Chemical Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Preferred Abstract (Original): 

In this work, different treatment methods for wastewater from textile washing operations in the Palestinian territories were studied. The goal of the treatment process was to enable the textile industry to reuse the wastewater in textile washing through simple, efficient, and cost-effective methodologies. Actual textile wastewater samples from local textile factories were used and were found to be highly polluted. The study focused on three main processes; sedimentation, coagulation, and adsorption. While sedimentation was found to reduce the total suspended solids (TSS) of the wastewater, coagulation had the additional advantages of lowering the chemical oxygen demand (COD) and achieving higher filtration rates. Four coagulants were tested, ferric chloride, ferrous sulfate plus lime, aluminum sulfate, and aluminum sulfate plus lime. While ferric chloride failed to perform effectively as a coagulant, the other three coagulants were fairly effective. Finally, to further lower the COD of post-coagulation treated water, adsorption using activated carbon was studied. It was found that carbon was effective in reducing the COD of the wastewater using reasonable quantities, where up to 98% COD reduction was achieved using 6 g carbon/L.

Nidal Zatar's picture

Quantitative Determination of Three Textile Reactive Dyes in Ground Water, Sewage Water and Soil Using Voltammetric and HPLC Techniques

Journal Title, Volume, Page: 
An-Najah Univ. J. Res. (N. Sc.), 18(2) (2004) 173-
Year of Publication: 
2004
Authors: 
Nidal Zatar
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus
Ali Abu Zuhri
Al-Aqsa University, Gaza, Palestine
Naser Tayem
Preferred Abstract (Original): 
Differential-pulse adsorptive cathodic stripping voltammetric (DP-AdCSV) and high performance liquid chromatography (HPLC) techniques were developed for quantitative determination of Reactive Blue 19, Reactive Red 198 and Reactive Orange 107 textile dyes. The calibration curves using the DP-AdCSV method were found to be linear over the ranges 0.05-1.0 ppm, 0.10-1.10 ppm and 0.05-1.0 ppm, respectively. The HPLC method is based on using a mobile phase consisting of acetonitrile:water (60:40, v/v) containing 0.45 M N-Cetyl-N,N,N-trimethylammonium bromide (CTAB) and buffered to pH 7.92. Reverse phase RP C18 column was used with a flow rate of 0.6 ml/minute. The retention times for Reactive Blue 19, Reactive Red 198 and Reactive Orange 107 were found to be 5.4 min, 7.8 min and 2.3 min, respectively. The calibration curves were found to be linear over the ranges 0.1-5.0 ppm, 0.1-1.2 ppm and 0.05-1.5 ppm, respectively.
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