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Title: Impact of Pulp and Paper Mill Effluent on Lysimetric Soil and Vegetation Used for Land Treatment
Authors: Kumar, A
Singhal, V
Joshi, B D
Rai, J P N
Keywords: Pulp effluent;Paper effluent;Vegetation;Lysimetric soil;Land treatment
Issue Date: Sep-2003
Publisher: NISCAIR-CSIR, India
Abstract: The paper reports on N-mineralization, microbial biomass C and N and microbial respiration of the pulp and paper mill effluent affected Iysimetric soils. The pulp and paper mill effluent has high values of BOD, COD, total solids, lignin and cellulose fibres and thus affects the various physico-chemical and microbial properties of soil while using in irrigation. The four types of soil textures viz., ST1 (pure soil-49 per cent sand, 33 per cent silt and 18 per cent clay), ST2 (soil mixed with equal amount of sand-65 per cent sand , 23 per cent silt and 12 per cent clay), ST3 (soil mixed with clay-23 per cent sand, 12 per cent silt and 65 per cent clay) and ST4 (pure sand) were taken for Iysimetric treatment of this effluent. The experiment showed that the minimum microbial characteristics were recorded in normal soil (ST1) at 25 per cent effluent concentration, while their maximum values were recorded in ST, at 100 per cent effluent concentration. Further, chlorophyll a, chlorophyll b, and total proteins in wheat and rice leaves were observed maximum in ST1 at 25 per cent effluent. On irrigation with 100 per cent effluent the values showed a significant decrease. Phosphorus, and sodium content in wheat and rice leaves were found to be maximum in ST1 at 100 per cent effluent level and minimum in ST4 at 25 per cent effluent level. There was maximum value of leaf chlorophyll a and b plant height, grain yield, shoot biomass, root biomass and grain/g biomass, protein, carbohydrate and lipid in the grains of both the crops at ST1 with 25 per cent effluent irrigation. Based on the above findings, application of normal soil for land treatment of pulp and paper mill effluent at 25 per cent concentration is recommended.
Page(s): 883-891
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.62(09) [September 2003]

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