Abstract
In this study-the ecological parameters of the effluents obtained from scouring and dyeing with reactive dyes of Remazol brand for conventional cotton single jersey knitted fabric as well as bio-scouring and dyeing with low impact reactive dyes of Avitera brand for organic cotton single jersey fabric have been investigated. The ecological parameters include chemical oxygen demand (COD), biological oxygen demand (BOD), total dissolved solids (TDS), Total Suspended Solid (TSS), dissolved oxygen (DO), EC or conductivity, alkalinity and pH. Also some selected physical properties have been investigated for both dyed fabrics such as bursting strength, fabric drapability, color fastness to wash, color fastness to rubbing and color fastness to perspiration. The results of ecological test show greater ecological advances for using organic cotton, bio scouring and low impact reactive dyes than the conventional method and raw materials. In addition, the bleaching process has eliminated by dyeing with deep shade that results less toxic chemicals in effluent. The physical properties also showed better results of using eco-friendly fabric and processes.
Highlights
Rapid growth in the industrial sector is playing a vital role in the economy of Bangladesh
The biological oxygen demand (BOD) values of the effluents for organic cotton after bio scouring is a greater extent lower than the conventional cotton caustic scouring. This is because the use of enzyme in place of caustic soda and maintaining a lower temperature around 60°C and the BOD value of the effluents for organic cotton scoured fabric after dyeing with low impact reactive dyes it shows a better and lower value i.e., 200 mg/L. The COD (mg/L) which is near about the DOE standard BOD value 50 mg/L
The results show that the dissolved oxygen (DO) value in mg/L of the effluents collected after bio scouring of organic cotton shows a greater value 2.76 mg/L in comparison of conventional cotton scouring effluents only 1.06 mg/L
Summary
Rapid growth in the industrial sector is playing a vital role in the economy of Bangladesh. The growth has been concentrated in garments which are export-oriented industries. To support garments sector a large number of other textile industries have been established and more are growing to be set up shortly. The textile industry represents a range of industries with operations and processes as diverse as its products [1]. The development of genetically modified cotton adds environmental problems at different level. Growing the cotton fiber uses 22.5 percent of all the insecticides used globally. For one T-shirt development, growing enough cotton requires 257 gallons of water
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
