Bioremediation of colour removal in dye effluent by Moringa oleifera seed powder
2016
K.K, Kavitha (ssistant Professor, Department of Environmental and Herbal Science, Tamil University, Thanjavur- 613010) | Kalaicelvi, A (Department of Environmental and Herbal Science, Tamil University, Thanjavur- 613010) | B,Sivasathya (Research scholar, Department of Environmental and Herbal Science, Tamil University, Thanjavur- 613010)
Textile industries produce effluent that are highly complex and are characterized by high Color, COD, suspended solid, turbidity etc. In the present study we are using Moringa oleifera seed powder as coagulant to treat the dye effluent. Moringa oleifera seed powder is used to reduce the Colour, Total Suspended Solids, Turbidity and colloidal materials responsible for the COD of waste water. The seed powder is used as a natural coagulant to reduce turbidity, Color, COD, pH and TDS of the textile effluent. The tests were carried out using the textile effluent with standard Jar test method. Various concentration of Moringa oleifera seed powder (0.5 g/l, 1 g/l, 1.5 g/l, 2g/l, 2.5 g/l and 3g/l) were taken to treat dye effluent. From the result it is found that the effective dosage for Colour reduction, COD, Suspended Solids and Turbidity was found to be 3g/l. The intensity of Colour of the raw effluent was reduced to 74% which is more or less equivalent to the chemical treatment using hypochlorite solution. Moringa oleifera seed powder (3g/l dose) is very effective in treating the dye effluent. The turbidity was reduced to NTU 65%, TSS (84%), and COD (39%) respectively. From this it can be clearly seen that the Moringa oleifera seed powder acts as an excellent alternative to chemical bleach (sodium hypochlorite) for dye effluent treatment and serves as a promising hope for our future research.
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