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B. Sivasathya et al.
distilled water and dried in an oven. This is then packed into the filter column for
about 50 ml. The column is then packed with 75 ml of egg shells which is pretreated
with HCl and heated in an oven for about 24 h.
2.4 Physico Chemical Parameters
Degradation of natural resources like water is occurring at unprecedented rates in
India and around the world in developing as well as in developed countries (Buechler
and Mekala 2005). The effluent generated by the textile industry is one of the major
sources of pollution. Characterization of textile process effluent streams is very
important to develop strategies for water treatment and reuse (Yusuff and Sonibare
2004).The effluent was characterized and the Table 1 shows the values of various
parameters like pH, TDS, TSS, Chloride, Alkalinity, Turbidity, and Colour, Total
Hardness, Calcium hardness, Magnesium hardness, free residual chloride and COD.
The effluent characteristics are shown in Table 1.
3 Results and Discussion
Textile effluent collected from Tirupur, exhibited higher level of water quality parameters and above permissible limits of ISI and FAO standard. The effect of natural
decolorizing agent for textile effluent treatment by using seed of Dodonae viscosa
was studied. The chosen seed powder is taken in the following five different concentrations 1, 2, 3, 4 and 5 g/l by standard jar test method. The raw dye industry effluent
is treated with the seed powder in neutral pH by adding HCL. The effluent colour is
degraded and changed to light yellow colour after a period of 13 h. The colour of the
raw effluent was found to be 5180 pt. co whereas the effluent treated with the seed
powder at an optimum dose of 5 g/l was found to be 8.49% Table 1.
The present study found that Dodonae viscosa was effective for colour removal
when followed by filtration through the biofilter colour—86.87%, TSS—81.06%, and
Turbidity—59.48% was achieved Fig. 1. Khader et al. (2018) studied natural coagulants for removal of COD, oil and turbidity from produced waters in the petroleum
industry. The natural coagulant of eggplant seed, when used as a coagulant, the
highest removal of oil, COD were 99.42%, 88.2% and 95.91% with eggplant, radish
and Cicer arietinum seed, respectively. It showed that a maximum of 86.87% colour
removal was achieved when compared to sodium hypochlorite (77.03%). When
compared to previous works, a maximum percentage colour reduction of 62.8% was
reported by Patel and Vashi (2013); Kalaicelvi and Kavitha (2019), was reported
colour 92% and TSS-85.33%, reduction was achieved using M.oleifera seed coagulant and biofilter to treat the dye effluent. The effect of sodium hypochlorite, seed
powder and biofilter column on decolorization and COD of dye effluent is given in
Fig. 2.
B. Sivasathya et al.
distilled water and dried in an oven. This is then packed into the filter column for
about 50 ml. The column is then packed with 75 ml of egg shells which is pretreated
with HCl and heated in an oven for about 24 h.
2.4 Physico Chemical Parameters
Degradation of natural resources like water is occurring at unprecedented rates in
India and around the world in developing as well as in developed countries (Buechler
and Mekala 2005). The effluent generated by the textile industry is one of the major
sources of pollution. Characterization of textile process effluent streams is very
important to develop strategies for water treatment and reuse (Yusuff and Sonibare
2004).The effluent was characterized and the Table 1 shows the values of various
parameters like pH, TDS, TSS, Chloride, Alkalinity, Turbidity, and Colour, Total
Hardness, Calcium hardness, Magnesium hardness, free residual chloride and COD.
The effluent characteristics are shown in Table 1.
3 Results and Discussion
Textile effluent collected from Tirupur, exhibited higher level of water quality parameters and above permissible limits of ISI and FAO standard. The effect of natural
decolorizing agent for textile effluent treatment by using seed of Dodonae viscosa
was studied. The chosen seed powder is taken in the following five different concentrations 1, 2, 3, 4 and 5 g/l by standard jar test method. The raw dye industry effluent
is treated with the seed powder in neutral pH by adding HCL. The effluent colour is
degraded and changed to light yellow colour after a period of 13 h. The colour of the
raw effluent was found to be 5180 pt. co whereas the effluent treated with the seed
powder at an optimum dose of 5 g/l was found to be 8.49% Table 1.
The present study found that Dodonae viscosa was effective for colour removal
when followed by filtration through the biofilter colour—86.87%, TSS—81.06%, and
Turbidity—59.48% was achieved Fig. 1. Khader et al. (2018) studied natural coagulants for removal of COD, oil and turbidity from produced waters in the petroleum
industry. The natural coagulant of eggplant seed, when used as a coagulant, the
highest removal of oil, COD were 99.42%, 88.2% and 95.91% with eggplant, radish
and Cicer arietinum seed, respectively. It showed that a maximum of 86.87% colour
removal was achieved when compared to sodium hypochlorite (77.03%). When
compared to previous works, a maximum percentage colour reduction of 62.8% was
reported by Patel and Vashi (2013); Kalaicelvi and Kavitha (2019), was reported
colour 92% and TSS-85.33%, reduction was achieved using M.oleifera seed coagulant and biofilter to treat the dye effluent. The effect of sodium hypochlorite, seed
powder and biofilter column on decolorization and COD of dye effluent is given in
Fig. 2.