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M. Parthiban and G. Devanand
Table 1 Characteristics of raw effluent
S.No.
Characteristics in mg/L
Test method
Result
Standard
1.
Total dissolved solids
Gravimetric
23622
2100
2.
Chemical oxygen demand
Open reflux
3200
250
3.
Biochemical oxygen demand
Dilution
1080
30
4.
Total suspended solids
Gravimetric
328
100
Fig. 5 UV photo reactor
the oxygen is given through an aerator. The aerator along with the stirring of the
catalyst mixes the catalyst throughout the effluent uniformly. This will enhance the
degradation of the dye at a higher rate. The UV lamp will provide the light source,
and it is covered by glass ware so that water does not penetrate the tube. An opening
is given for the syringe to collect the samples.
Figure 6 represents the fish tank model for sunlight reaction. In this model, aeration
along with shaking is given for the reaction. This will enhance the reaction at a faster
rate giving better results. As sunlight has UV spectrum, visible spectrum and infrared
spectrum, the reaction will be faster in sunlight.