ABSTRACT
Chromium (VI) is moderate to severe toxic which is responsible to produce deleterious effects in human beings and animals. The sources of contamination of chromium in natural waters and in the environment are from electroplating, tanning industries and waste solution from oxidative dyeing and leaching from sanitary land – fills. Hence the determination of chromium is of great interest to analytical and environmental chemists. The present study deals with the determination of physico-chemical parameters of electroplating effluents collected from a local industry. Probable reduction of hexa valent chromium was also attempted using standard iron (II) sulphate solution.
ABSTRACT
Physico – Chemical analysis of well and bore well water samples was carried out from ten sampling stations of Visakhapatnam District for a period of 1 year during different seasons in 2009. The analysis of different parameters namely- temperature, pH, color, electrical conductivity and fluoride were carried out as per standard methods. All the parameters studied were within the permissible levels except fluoride. The results indicate that fluoride content in some sampling stations ( S2 ,S7 , S14, S15 and S16) was found above standards probably due to seasonal variations and salt water contamination.
ABSTRACT
Physico – Chemical analysis of well and bore well water samples was carried out from eight sampling sites of Guntur rural area for the month of February 2010. The analysis of different parameters namely- pH, turbidity, colour, total alkalinity, total hardness, chloride, sulphate, nitrate, TDS, DO, BOD, COD were carried out as per standard methods . The present study aimed to calculate water quality index (WQI) in order to assess the suitability of water for drinking purposes. The results obtained on WQI from different sampling stations were found to be varied from 38.3. to 42.6.