Textile industry waste

1. TREATMENT OF TEXTILE
INDUSTRY EFFLUENTS
By
AMINA TARIQ

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

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

4. Why its treatment is
important?

5. • 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

6. 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

7.  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

8. THANK YOU