A study on the effect of paper mill effluent on seed germination of vegetables
- Country : India
- Subject : ETP, OTR
Abstract
In the present study an attempt has been made to access the effect of Paper Mill effluent treated as well as untreated on germination of various crops, to ensure the safe landing of such effluent for irrigational purpose. The effluent treatment plant of OTR Paper Mill consists of primary clarifier effluent (untreated), Aeration tank effluent(having biomass), secondary clarifier effluent(treated). The germination of various seed was determined on the basis of growth with respect to different effluent, keeping all other factors constant. Maximum rate of germination occur in Secondry clarifier treated effluent. Level of germination in different effluent was determined on the basis of simple pot experiment and basis of measurement of growth was only apical shoot growth. The primary clarifier water showed the reduced growth due to addition of various chemical added during pulping. The high germination in Aeration tank effluent and Secondary clarifier effluent supports that frequent addition of Urea, DAP and Carbon source(N,P) provide food sources for biomass as well as act as residual nutrients or as fertilizer in effluent. The previous research reveals that physicochemical properties of paper mill waste water don’t permit its disposal directly into land for irrigation however after using the treatment methodologies the treated effluent can be used safely and good for crops in coming future. The result obtained supports the beneficial effect of Paper mill effluent on the growth behaviour of crops.
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