Textile Effluent Treatment Methods for Water Pollution Control
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Textile Effluent Treatment Methods for Water Pollution Control
- 1. Characterization and treatment of textile chemical processing effluents R.B.Chavan Department of Textile Technology Indian Institute of Technology Hauz-Khas, New Delhi 110016 E-mail rbchavan@hotmail.com
- 9. Tolerance limits for industrial effluents Absent Absent Absent Absent Pesticides mg/l 5 - - 2 Sulphides mg/l 15 - 15 5 Zinc mg/l 3 - 3 3 Copper mg/l 1.0 - 2 0.1 Hexavalent chromium mg/l 250 - - 250 COD 100 100 350 30 BOD (5 days ) 20 10 20 10 Oil and grease mg/l 45 - 45 40 Temperature 0C Max. 5.5-9 5.5-9 5.5-9 5.5-9 pH - 2100 2100 2100 Dissolved solids (TDS, mg/l m - 200 600 100 Suspended solids (mg/l ) Colourless Colourless Colourless Colourless Colour and odour Into marine Coastal areas On land for irrigation Into public sewer Into inland surface water Characteristics
- 20. RO of Rinsed water from dyeing
- 22. Adsorption on activated carbon bed
- 27. Trade prospects
- 41. Reduction of water consumption Wash Wash Degumming
- 42. Reduction of water consumption Exhaust dyeing Rinse Rinse Rinse Recycle for rinsing subsequent dyeing