TAILIEUCHUNG - Effect of wastewaters on soil enzymes activity

Water scarcity and increase wastewater generation are twin problem associated which needs to be addressed to derive benefit for agricultural production. In this context laboratory study was conducted to characterize the wastewater from four different sources (Ugar sugar-Ugar khurd, West coast paper mill-Dandeli, Nectar beverages-Dharwad, Domestic sewage water-UAS campus Dharwad) in north Karnataka and were compared with freshwater. Spentwash from the Ugar Sugar Works distillery was singularly different from rest of the wastewaters and was characterized by its high pH, EC, TSS, TDS, BOD, COD, total nitrogen, phosphate, potassium and sulphate concentration. The effect of the wastewaters on the dominant soils of north Karnataka (Red, Lateritic and Black soil) were evaluated in column study during March-2014 to April-2015. Wide variation in water characteristics was recorded with wastewaters studied. Urease, phosphatase and dehydrogenase activities were highest in spent wash treatment in red soil followed by paper mill wastewater in all soils. Activity of urease, phosphatase and dehydrogenase was recorded highest at surface layer and their activity gradually decreased with the depths in all the soils under different treatments. | 2019 8 4 1080-1087 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 04 2019 Journal homepage http Original Research Article https Effect of Wastewaters on Soil Enzymes Activity Hanamantarao Jogan and . Dasog Department of Soil Science and Agricultural Chemistry UAS Dharwad-580 005 India Corresponding author ABSTRACT Keywords Wastewater Water quality Lateritic soil Red soil Black Soil Urease Phosphatase and Dehydrogenase Article Info Accepted 10 March 2019 Available Online 10 April 2019 Water scarcity and increase wastewater generation are twin problem associated which needs to be addressed to derive benefit for agricultural production. In this context laboratory study was conducted to characterize the wastewater from four different sources Ugar sugar-Ugar khurd West coast paper mill-Dandeli Nectar beverages-Dharwad Domestic sewage water-UAS campus Dharwad in north Karnataka and were compared with freshwater. Spentwash from the Ugar Sugar Works distillery was singularly different from rest of the wastewaters and was characterized by its high pH EC TSS TDS BOD COD total nitrogen phosphate potassium and sulphate concentration. The effect of the wastewaters on the dominant soils of north Karnataka Red Lateritic and Black soil were evaluated in column study during March-2014 to April-2015. Wide variation in water characteristics was recorded with wastewaters studied. Urease phosphatase and dehydrogenase activities were highest in spent wash treatment in red soil followed by paper mill wastewater in all soils. Activity of urease phosphatase and dehydrogenase was recorded highest at surface layer and their activity gradually decreased with the depths in all the soils under different treatments. Introduction Increasing scarcity of water has turned to be regular phenomenon in the recent past. Priorities of the water use .

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