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STUDIES ON THE IMPORTANT POLLUANTS OF WASTEWATER FROM TEXTILE INDUSTRY Print

STUDIES ON THE IMPORTANT POLLUANTS OF WASTEWATER FROM TEXTILE INDUSTRY

 

 

Claudia Sandru*, Elena David, Felicia Bucura, Marius Constantinescu

 

 

 National Institute for Research and Development for Cryogenic and Isotopic Technologies - ICIT Rm. Valcea,

 

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ABSTRACT

 

The specific water intake for the textile industry varies depending on the type of processes used and water efficiency. Dye house effluents are complex, containing a wide and varied range of dyes and other products such as dispersants, leveling agents, acids, alkalis, salts and sometimes heavy metals. The wastewater contains natural impurities extracted from the fibres and a mixture of the process chemicals such as organic compounds, dissolved inorganic salts, dyes and heavy metals. In general, the effluent is highly-colored and is alkaline in nature.

This study is  focused on investigating the characteristic of effluent from textile industry.

The ranges of the physico-chemical parameters studied were as follows: pH 6.37-11.84, total dissolved solids (TDS) 601-2450 mg/l,  suspended solids (SS) 1.80-183.3 mg/l, ammonia 0.2 mg/l-21.4 mg/l, chromium 0.2-214.4 µg/l, lead 1.4-756.3 µg/l, copper 4.69- 436.5 µg/l, zinc 0.2-352.7 µg/l, nickel 2.46-986.5 µg/l, cadmium 0.13-17.77 µg/l and their analysis highlighted the degree of pollution of wastewater resulted from textile industry.

 

KEYWORDS: wastewater, textile industry, characterization, polluant