Evaluation of Lime as an aid for coagulation - Flocculation treatment of textile wastewater effluent

Rashidi, N.A. and Eldemerdash, U.M.N. (2012) Evaluation of Lime as an aid for coagulation - Flocculation treatment of textile wastewater effluent. InterCeram: International Ceramic Review, 61 (1). pp. 12-15. ISSN 00205214

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Abstract

The treatment of textile industry wastewater effluents represents a challenge in meeting the environmental standards of discharge limits. This is due to the stability of different dyestuff even when exposed to the most oxidizing processes. The coagulation and flocculation process shows good capability for this application. Ceramic materials, e.g., lime, represent a promising alternative for enhancing this process. There is a lack of information about the optimum operating parameters for different effluents. This is due to the fact that the optimum values are related to the type of dyestuff. This study evaluates experimentally the use of lime as a coagulant aid for synthetic wastewater containing Eriochrome Black T dyestuff. Optimum operating parameters were investigated, and the optimum values of pH, temperature, coagulant dose and coagulant aid were determined. The effects on turbidity, chemical oxygen demand and final pH are shown. The lime shows a good capability for being used as a coagulant aid with aluminum sulfate to remove Eriochrome Black T dyestuff from wastewater effluents. To achieve an effective treatment, the shown optimum operating conditions should be applied.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: Aluminum sulfates; Ceramic; Coagulant aids; Coagulant dose; Discharge limit; Environmental standards; Eriochrome black T; Final pH; Flocculation process; Operating parameters; Optimum operating conditions; Optimum value; Oxidizing process; Synthetic waste water; Textile industry wastewater; Textile wastewater; Wastewater effluents, Ceramic materials; Chemical oxygen demand; Coagulation; Color removal (water treatment); Effluent treatment; Flocculation; Lime; pH effects; Textile industry; Textile processing; Turbidity; Wastewater, Effluents
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:51
Last Modified: 09 Nov 2023 15:51
URI: https://khub.utp.edu.my/scholars/id/eprint/3004

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