Cobalt Manganese Ferrite nanoparticles (Co1-xMnxFe2O4 with x varying from 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) of size varying from 16nm - 73 nm were synthesized by simple co-precipitation method. The obtained samples were characterized by X-ray diffraction analysis, Fourier Transform Infrared spectroscopy, Vibrating Sample Magnetometer. The structure of the samples was determined by using X-ray diffraction Characterization. X-ray diffraction analysis shows that the synthesized samples were cubic spinel in structure. The obtained XRD result shows that the lattice constant (ao) increased and the average crystallite size shows decrement with manganese substitution. The average crystallite size of the particles was determined by using Debye Scherrer’s Formula. Fourier transform infrared spectroscopy (FTIR) in the range 4000-400 cm-1 was reported. The water absorption bonds and the spinel structure of crystalline cobalt manganese ferrite nanoparticles were reported. The Vibrating sample magnetometer (VSM) results revealed the magnetic properties of the synthesized samples such as Remenance, Coercivity and saturation magnetization. The VSM results reported that the remenance and Coercivity were in decrement and the Saturation Magnetization found to be decrease and increase with Manganese implementation in cobalt ferrite nanoparticles. The synthesized cobalt manganese ferrite magnetic nanoparticles could be used in ferroelectric and in magnetic recording applications.

Assessment of groundwater quality is important in many groundwater studies. Water never occurs in its pure state in nature. Groundwater composed of chemical ions in the form of solution. The type and concentration of these elements depends upon the surface, sub-surface environment, rate of groundwater movements and the source of groundwater. In addition to the above natural causes, man also contributes his share in changing the quality of water by sending sewage into ground and contaminating the aquifer by discharging industrial waste into it. The use of groundwater for drinking, agricultural and industrial needs is determined by, physical and chemical characteristics. The hydrochemical studies generally involve (i) a description of the occurrence of various constituents in groundwater, (ii) the relation of these constituents to water use, (iii) identification of geochemical patterns and (iv) the development of a hydrogeochemical model of the area. The present experimental work determines the ground water quality parameters by using GIS software at Ariyalur taluk, Tamil Nadu, India.