Impact of Raw And Treated Textile Dyeing Effluent On Germination, Growth of Selected Pulses And Cereals

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R. Baby Malleswari and K. Perumal

Shri A.M.M. Murugappa Chettiar Research Centre, Taramani, Chennai-600 133, Tamil Nadu,

India.

The physico-chemical characteristics of raw and treated textile dyeing effluents and its impact on germination and growth of the seeds/grains of Vigna mungo (Vm), Vigna radiata (Vr), Oryza sativa (Os),and Triticum vulgare (Tv) were analyzed. The raw & treated effluents were recorded for pH (4.1, 5.8) TDS (17900, 7054 mg/L), COD (16000, 4020 mg/L) and BOD (12000, 510 mg/L). Maximum germination [Vm (100%), Vr(100%),Tv(90%)and Os(90%)], Shoot length [Vm (7.69cm) Vr, (9.23cm), Tv(8.68cm)andOs (9.92cm)],root length [Vm (14.96cm), Vr(11.61cm), Tv(8.61cm)andOs(9.92cm)], number of roots andenhanced fresh and dry weights of Vm, Vr, Tvand Os were recorded in treated textile dyeing effluent and control. Whereas, raw textile dyeing effluent has reduced effect on all growth parameters. The present study proved that the treated effluent can be used for the irrigation purpose.

Key words: Raw textile dyeing effluent, Treated textile dyeing effluent and Phytotoxicity.

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