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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Mar 2009, 29 (2)                                     Back


Ovarian development in Labeo dyocheilus (McClelland) during active

Pollution level in distillery effluent and its phytotoxic effect on seed

germination and early growth of maize and rice

S.N. Pandey*, B.D. Nautiyal and C.P. Sharma

Department of Botany, Lucknow University, Lucknow - 226 007, India

(Received: December 15, 2005 ; Revised received: February 02, 2006 ; Accepted: December 15, 2006)

Abstract: The effluent from a Lucknow - based distillery (Mohan Meakin Distillery) was analyzed for physico-chemical and biological parameters of pollution and concentration of potentially toxic heavy metals (Cd, Cr, Ni and Zn) and the effect of the distillery effluent, as such and on 50% dilution with tap water was studied on seed germination and seedling growth of maize (Zea mays L.) and rice (Oryza sativa L.). The effluent was wine red in colour and highly acidic (pH ~ 5.5) and possessed decaying alcoholic smell. The effluent contained high values of different pollution parameters, particularly total solids, 3450 mgl-1 (soluble plus suspended solids), alkalinity 1500 mgl-1, biological oxygen demand (BOD, 1649 mgl-1) and chemical oxygen demand (COD, 2036 mgl-1). It had very low values of dissolved oxygen (DO, 0.34 mgl-1). The heavy metals (Cd, Cr, Ni and Zn) content, particularly the nickel concentration (0.029 mg l-1) was high. Use of the distillery effluent, even on 1:1 dilution with tap water, inhibited germination and early seedling growth of maize and rice. In both maize and rice, more so in the former, germination % of seeds, length of radicle and plumule and the fresh and dry weight of the seedlings were significantly reduced. The emerging leaves of the seedlings also developed visible effects of toxicity, some of which resembled the symptoms of nickel toxicity. Our observations suggest that the effluent, as discharged from the distillery, carry a heavy load of pollutants. Its discharge into the river Gomti poses a potential threat to the aquatic life, perticularly during the summer months when the water flow in the river is drastically reduced. The distillery effluent is also harmful for irrigating crops grown along the drain carrying it.

Key words: Distillery effluent, Pollution, Heavy metals, Phytotoxicity

PDF of full length paper is available with author (snpandey511@gmail.com)

 

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