EFFECT OF MUNICIPAL SEWAGE ON BUILD UP OF HEAVY METALS IN SOIL IN THE VICINITY OF JAIPUR CITY OF EASTERN RAJASTHAN, INDIAS.R. KUMAWAT, B.L. YADAV S.P. MAJUMDAR AND R. VERMA
Soil and water samples were collected from the fields irrigated with sewage, dilute sewage and tube well water. The collected samples were analyzed for chemical parameters using standard methods. The sewage water from Aminishah Nala contains higher values of EC, SAR, TDS, BOD, COD, phosphate, nitrate, metallic cation (Zn, Cu, Fe, Mn, Ni, Pb, Cd and Cr). However, the metallic cations (Cu, Mn, Ni, Pb and Cd) were above the maximum recommended concentration. The use of sewage water for irrigation in light textured soil of Jaipur has higher inorganic and organic load Sewage water irrigation caused an increase in the organic carbon, available nitrogen and phosphorus but in its wake resulted in a several fold build up of the metallic cations in the soil, under study call for passing of the sewage water through an effluent treatment plant before being diverted for irrigation.
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