This paper investigates the determination of seasonable variation of trace metals named Copper, Zinc, Iron, Cadmium, Chromium and Lead set down in the groundwater in and around area of tannery areas of Vellore district. The tanneries discharge untreated tannery effluents, which get mixed with the soil, water of the Palar River, and underground in this area. The determination of metals was performed for the groundwater samples which are collected from adjacent to tannery localities, which bears untreated tannery effluents at pre-monsoon and post-monsoon seasons. The metals might be deposited into the plants and vegetables grown on that agricultural soil, which disturb human health. Somewhat risky amount of trace metals were found in some groundwater samples, especially in the case of in pre-monsoon. All these trace metals were analysed by the Atomic adsorption spectroscopy technique (AAS). These metals contamination in the groundwater is answerable for the support of harmfulness in farming crops and underground water.

Industries, though being an integral part of an economy, have a very high impact on polluting the environment by discharging effluents. Various pollutants from different sources cause defilement of profuse resources. One of the most threatening pollutants in the recent years is heavy metals released from leather industries. This study aims at reckoning the amount of heavy metals present in the water sources in and around the most polluted tannery area in Tamil Nadu, Ranipet that lies on the banks of Palar River. Leather processing in these industries requires many chemicals which includes heavy metals such as Chromium, Zinc, Barium etc. The industrial waste that comes out after the processing contains these metals in surplus amount. The wastes from these industries are released into the nearby water source. This on sustained deposition causes befoulment of the water making it unsuitable for drinking and irrigation. Thirty Samples (ten from each) were taken from bore well, dug well and river. Standardized methods were used to scrutinize the amount of heavy metals encompassed in the samples. Comparisons were made against the permissible level in each sector. The results showed discrepancy with the standards. The health discomforts posed by the habitants due to usage of the contaminated water for the daily chores have also discussed

From the dawn of industrial revolution there has been a ceaseless development of technologies to support human comfort. These technologies besides leading to a better living, also causes hazardous effect to the society when not treated properly. One of the major developments in the industrial era is refining of leather. The heavy metals when released from these industries contaminate the surrounding. The study aims at getting more clear understanding about the contamination of the heavy metals in the water and soil samples which cause skin allergy risks for industry workers and habitants residing near the tannery zone .The research intents at reckoning the heavy metal contamination in 20 bore well water ,20 soil samples and 20 tannery workers (10 male and 10 Females) blood samples who were suffering from skin allergy taken from the zone in and around leather tanneries in Vellore district. The samples were tested by various methods to estimate approximate value of large number of heavy metals including Cu, Al, Zn, Cr, and Ni. Besides; various physical characteristics of the water were also tested. The comparison against the permissible standard was made and the results showed excessive deposition of toxic metals in the samples. Moreover, the blood samples of people around these areas where also tested for heavy metal contamination and surveyed number of people admitted in ESI hospital with skin allergy from year of 2014 to 2016 in the study area. These numbers showed a continuous hike when compared with the value evaluated in the earlier days.

The following study explains that the adsorption efficiency of activated carbon used by Groundnut foliage and groundnut husk for the deportation of COD (Chemical Oxygen demand) from groundwater collected from in and around industrial areas of Vellore district was investigated with different activating conditions (Activating agent- KOH, ZnCl2 and H3PO4; Impregnation ratio-1:1,1:2,1:2; and activation temeperture-500-700°C. The activated carbon prepared based on optimized condition has well-developed pore structure and functional groups which is confirmed from SEM image and FTIR analysis respectively. The adsorption equilibrium was reached in 240 min with the isotherm data fitted well in both the model such as Langmuir model and Freundlich’s model indicating chemisorption’s adsorption for the activated carbon. Moreover, the adsorption process was exothermic accompanied by a decrease in irregularity. Furthermore, the adsorption kinetic study indicated that the adsorption process of the prepared sample follows the pseudo-second-order kinetic model compare to the pseudo-first -order kinetic model