B. R. BABU ET AL.17
usions were drawn:
ficantly by elec-
ld, F. Judkins and B. L. Weand, “Process
Chemistry for Water and Wastewater Treatment,” Pren-
ol. 35,
tra was reduced drastically after the combined effect of
both the treatments.
4. Conclusions
The following concl
1) COD and colour were reduced signi
trooxidation followed by biological method and the
maximum were obtained as 91% and 95% respectively.
2) Pseudomonas putida showed the best bacteria for
the reduction of COD and colour.
3) The performance of colour removal was signifi-
cantly improved by the application of the combined
treatment methods which was observed in UV studies.
4) FTIR reveals that aromatic compounds degraded to
aliphatic compounds which are easily biodegradable.
5) The treated water can be reused for effective dyeing
process.
6) The intensity of UV–Vis spectra was reduced dras-
tically that clearly indicates azo dye degradation with
electro-oxidation followed by biological treatment.
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