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Treating the Recycled Alum Sludge in the Textile Industry
Subject area: Science,Engineering and Technology · Area of research: Textile
Abstract
Textile industry is considered as one of the most polluting sectors in terms wastewaters volume of discharge and effluent composition, such as dye, which represents an environmental hazard when discharged without any proper treatment. A study was conducted to investigate the capability of the use of recycled alum sludge (RAS) as an alternative treatment for the reduction of colour, chemical oxygen demand (COD), total dissolved solids (TDS) and pH adjustment from dye based synthetic textile industry wastewater. The coagulation/flocculation process was studied for coagulants of Alum-RAS ratio of 1:1, 1:2 and 0:1 and the results were evaluated against the removal efficiency of fresh alum in the treatment synthetic wastewater. Fresh alum recorded a colour removal efficiency of 8? 2%, while 78 ? 3%, 86 ? 3%, 82 ? 2% were recorded during the treatment with coagulants with mix ratios of 0:1, 1:1 and 1:2, respectively. Evidences have demonstrated that that reusing the alum sludge as a low-cost material pre-treatment method into the coagulation/flocculation process can offer some advantages such as high removal efficiency for disperse dye and economic savings on overall treatment of the industry wastewater.
Keywords
Alum; Coagulation/flocculation; Dye; Recycled alum sludge; Textile wastewater, clothing, chemicals
References
[1] Tüfekci N, Sivri N, Toroz I (2007) Pollutants of textile industry wastewater and assessment of its discharge limits by water quality standards. Turkish Journal of Fisheries and Aquatic Sciences 7: 97-103.
[2] Morshed MN, Azad SA, Alam AM, Deb H, Guha AK (2016) An instigation to green manufacturing: Characterization and analytical analysis of textile wastewater for physico-chemical and organic pollution indicators. American Journal of Environmental Science & Technology 1: 11- 21.
[3] LeRoes-Hill M, Muanda C, Rohland J, Durrell K (2017) NATSURV13: Water and Wastewater Management in the textile industry. (2ndedn), Water Research Commission, Pretoria, South Africa.
[4] Chu W (2001) Dye removal from textile dye wastewater using recycled alum sludge. Pergamon 35: 3147-3152.
[5] Ong YK, Li FY, Sun SP, Zhao BW, Liang CZ, et al. (2014) Nanofiltration hollow fibre membranes for textile wastewater treatment: Lab-scale and Pilot-scale studies. Chemical Engineering Science 114: 51-57.
[6] WWW.textile school.com
How to cite this paper
@article{1700710,
author = {V. ILANGO},
title = {Treating the Recycled Alum Sludge in the Textile Industry},
journal = {Iconic Research And Engineering Journals},
year = {2018},
volume = {2},
number = {1},
pages = {42-46},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1700710.pdf},
abstract = {Textile industry is considered as one of the most polluting sectors in terms wastewaters volume of discharge and effluent composition, such as dye, which represents an environmental hazard when discharged without any proper treatment. A study was conducted to investigate the capability of the use of recycled alum sludge (RAS) as an alternative treatment for the reduction of colour, chemical oxygen demand (COD), total dissolved solids (TDS) and pH adjustment from dye based synthetic textile industry wastewater. The coagulation/flocculation process was studied for coagulants of Alum-RAS ratio of 1:1, 1:2 and 0:1 and the results were evaluated against the removal efficiency of fresh alum in the treatment synthetic wastewater. Fresh alum recorded a colour removal efficiency of 8? 2%, while 78 ? 3%, 86 ? 3%, 82 ? 2% were recorded during the treatment with coagulants with mix ratios of 0:1, 1:1 and 1:2, respectively. Evidences have demonstrated that that reusing the alum sludge as a low-cost material pre-treatment method into the coagulation/flocculation process can offer some advantages such as high removal efficiency for disperse dye and economic savings on overall treatment of the industry wastewater.},
keywords = {Alum; Coagulation/flocculation; Dye; Recycled alum sludge; Textile wastewater, clothing, chemicals},
month = {July},
}