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Co-fermentation of colored concentrates from the textile processing industry
1Institute for Sanitary Engineering, Water Quality and Waste Management, University of Stuttgart, Stuttgart, Germany. daniela.bock@iswa.uni-stuttgart.de
Summary
Treating textile wastewater concentrates anaerobically offers ecological and economic benefits. Co-fermentation effectively decolorizes dyes and digests refractory organic substances, reducing treatment costs.
Area of Science:
- Environmental Science
- Industrial Biotechnology
- Wastewater Treatment
Background:
- Textile processing industry (TPI) generates highly concentrated organic and colored wastewater.
- Separate collection and treatment of these concentrates can reduce overall wastewater load.
- Anaerobic conditions are effective for dye decolorization and digestion of refractory substances.
Purpose of the Study:
- To evaluate anaerobic co-fermentation as a disposal method for TPI wastewater concentrates.
- To demonstrate the ecological, economical, and procedural advantages of this approach.
Main Methods:
- Anaerobic co-fermentation of textile wastewater concentrates.
- Monitoring of dye decolorization efficiency.
- Assessment of digestion of refractory organic substances.
Main Results:
- Achieved almost complete decolorization of various dyes.
- Successfully digested substances refractory under aerobic conditions.
- Demonstrated significant reduction in wastewater treatment challenges.
Conclusions:
- Anaerobic co-fermentation is a viable and beneficial strategy for treating textile wastewater concentrates.
- This method offers ecological, economical, and procedural advantages for the TPI.