Constituents of water and their effect on Textile wet processing
programmes which includes WHO, ISO standards for raw water criteria
Effluent discharge standards for inland surface water public sewers,
on land for irrigation,
marine coastal areas and drinking water parameters
Quality requirements of water for cotton and synthetic Textile processing .
Water softening .
Colour, pH value, dissolved solids,
total hardness (Calcium + Magnesium)
total iron-thiocyanate method, Alkalinity,
acidity , chlorides dissolved oxygen ,
BOD and COD.
Characteristics and treatment of cotton,
synthetics and wool processing effluents.
Reduction of pollution load.
Textile Effluent treatment methods.
Primary treatment methods
screening, sedimentatation, equalisation, neutralisation, coagulation and flocculation.
Secondary treatment methods
Activated sludge process,
removal of interfering substances in secondary biological treatment.
Evaporation (solar and steam).
Membrane technologies (MF, UF, NF & RO) ,
ion exchange and activated carbon treatment.
Model schematic diagram for
Wastewater treatment plant for textile mills
Primary and Secondary units & Tertiary treatments,
Quality parameters at entry and exit of RO.
Chlorine trioxide treatment,
ozone treatments, enzymatic decolourisation.
Gaseous and Aerosols
Effects of air pollution
Effect of Sulphur oxide on human health
Properties of air pollutants
control of air pollutants
Air pollution control equipment
Ambient air quality standards
Emission limits at chimney level
Types of noise (Steady state noise – Impulse noise)
ill effects of noise
Control of noise pollution
Shape noise levels in decibels.
Upon completion of the course, the students will be able to
- Understand the textile processing related causes for pollution
- Understand the effluent discharge standards and different processes involved in waste
Perform the research and development to produce zero discharge effluents
- Rao,C.S., “Environment Pollution control Engineering”, New age International Ltd. and Publishers, N.Delhi, 2004.
- Reife, A., and Freeman, H.S., (Ed)., “Environmental chemistry of dyes and pigment”, Wiley., London, 2000, ISBN: 047158276.
- Horrockks, A.R (Ed)., “Ecotextiles’98: Sustainable development”, The Text.Inst.,
Manchester 1999, ISBN: 1855732426.
- Modak.P., “The textile industry and the environment”, UNEP:HMSO, Blackwells, Leeds,
2003, ISBN: 9280713671