Raghunathan, Karthik and Thawale, Prashant Ramchandra and Singh, Sanjeev and Juwarkar, A A (2011) Pulp and papermill wasterwater: can it solve the irrigation water scarcity problem. Technical Journal of Engineering and Applied Sciences, 1 (1). pp. 1-9.

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Changes in physico-chemical properties of soils and crops grown with pulp and paper mill wastewater in field lysimeters were carried out for three years at the integrated pulp and paper mill, madhya pradesh (india). lysimeters were prepared by excavating pits of 5 m x 2 m x 2 m, lined with polyethylene sheet and filled with sandy loam, clay and loamy sand soils and provided with percolate collection system. treated wastewater was used for crop irrigation containing high salinity and specific ion toxicity. with respect to sodium adsorption ration (sar), it was categorized under group `no restriction on use’. sandy loam & loamy sand soils in lysimeter i and iii percolate was 17% and 20% of irrigation while clay soil in lysimeter ii it was only 15%. sandy loam & loamy sand soils respectively showed 97 & 96% removal of chemical oxygen demand (cod) while clay soil removed 99% of cod and the color removal in both cases was 100%. percolate initially showed leaching of calcium and magnesium and retention of sodium, which got adsorbed in soil matrix. Application of wastewater resulted in increase in water holding capacity, ph (0.6 - 1.3 units), electrical conductivity of saturated extract (ece - 0.6 - 2.1 ms cm-1) and exchangeable sodium percent (esp - 8.1 - 11.6). organic carbon and available nitrogen, phosphorus and potash content of soils were also increasing. however, there was decrease in bulk density. the results showed that the application of wastewater increased the grain and straw yield of jowar, wheat and moong as compared to plain water respectively. there was slight variation in micro and macro nutrient content of grains of crop irrigated with wastewater, but it did not affect the nutrient quality and there was no accumulation of toxic heavy metals in the food grain. we measured nutrient input by wastewater and output by leaching and harvest export on unfertilized crop. a semi quantitative nutrient balance showed that all lysimeters had negative balance of micronutrients, indicating open nutrient cycles on these soils. these results showed that the pulp and paper mill wastewater might be successfully utilized for crop production

Item Type: Article
Uncontrolled Keywords: Yield, Pulp and Paper Mill Wastewater; Lysimeter; COD; ESP
Subjects: Environmental Biotechnology
Environmental Management
Depositing User: Er Karthik Raghunathan
Date Deposited: 31 Mar 2017 09:54
Last Modified: 31 Mar 2017 09:54
URI: http://neeri.csircentral.net/id/eprint/804

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