TREATMENT OF TEXTILE
INDUSTRY EFFLUENTS
By
AMINA TARIQ

What is the chemical nature of the effluent?
Why its treatment is important?
How it is treated?
Electrochemical Oxidation/ Cutting-edge technology
CONTENT

Nature of the
effluent
• Large % of water
• Unfixed dyes
• Heavy metals ; Zn, Cr
• Detergents
• Surfactants
• Natural impurities ;Waxes,
proteins
• Inorganic chemicals; ammonia,
free chlorine

Why its treatment is
important?

• Screening, sedimentation,
Neutralisation, chemical coagulation
Primary
• Aerated lagoon, oxidation ditch,
Trickling filtration, Activated sludge
Secondary
• Oxidation techniques, membrane
technology, Electrochemical
processes, Photocatalytic degradation
Tertiary
How it is treated?
Modern dyes
are largely
organic
aromatic
compounds
and their
degradability
has become a
challenge.
LEVELS OF
TREATMENT

Electrochemical Oxidation
Advantages
Simple to
operate
Green
Technology
Disadvantages
High energy
costs
Rapid
consumption
of electrodes
pH, Temperature,
current density,
concentration of the
salt(electrolyte), type &
nature of electrodes
and effluent
composition
Variables

 Nautiyal, T. V. 2013. Waste water and its treatment in textile
industry. [Online]. [Accessed 18 October 2015].
Available from: http://www.slideshare.net/textilevandana/waste-
water-and-its-treatment-in-textile-industry
 Zimmer, L. 2012. Chinese Textile Polluters Disregard
Environmental Regulations, Says Report. [Online]. [Accessed 20
October 2015].
Available from: http://www.ecouterre.com/chinese-textile-
polluters-regularly-violate-environmental-regulations-says-
report/2/
REFERENCES

THANK YOU