Decolourisation of textile effluent by adsorption using carbonated rice husk

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Authors :

Anaswara N S, Arun Kumar P, Deva Prakash B, Ranjith Kumar M, Subitha T

 

Author Address :

Department of Civil Engineering, SNS College of Engineering, Coimbatore, 641107, Tamilnadu, India.
*For correspondence: anaswaragdr@gmail.com

Abstract :

Tirupur is an important trade centre of India which is famous for its knitted garment wears. It is situated near Coimbatore which is known as “The Manchester of South India”. Tirupur accounts for 90% of India’s cotton knitwear export. But the textile mills produce large amount of waste water effluents which results in environmental pollution. Waste water effluents contains synthetic dyes which cause a potential hazard to environment hence these dyes need to be removed from water. On a survey it was found that in Tirupur District the waste water effluents from all the textiles mills are collected in a common treatment unit. Biological Method is used for the treatment of effluent. This process releases out foul gases causing bad odour. Also most of the textile mill collects the treated effluent and reuse it for dyeing the garments. There by the owners are charged per litre of treated dye mixed effluent. The various dye removal process involves Chemical, Physical and Biological methods. Adsorption is a physical process which is carried out in this project. It is found to be very effective and cheap method among all the dye removal methods. Dyes from textile waste water effluents are effectively separated using adsorbents such as activated carbon. In the present study, rice husk is used for preparing activated carbon and observed that, it has the capacity of absorbing most of the dyes due to its porous nature and surface area.

Keywords :

Knitwear, Textile mill, Effluent.

Article Info :

Received 24-Mar-2017, Revised 17-Apr-2017, Accepted 18-Apr-2017

 

 

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