The kinetics of Rh(III) Catalysed oxidation of Crotonic acid (CA) by Ce(IV) in sulphuric acid medium has been investigated. The reaction show first order kinetics with respect to Ce(IV), Crotonic acid (CA) and Rh(III) negligible effect of [H+], and ionic strength of the medium. The rate decrease in dielectric constant of the medium has been observed in Rh(III) catalysed reaction. The product of oxidation in reaction are acetaldehyde and glyoxalic acid. Activation parameters have been computed and mechanistic step, consistent with the kinetic result, reaction stoichiometry and product analysis for catalysed reaction have been discussed.             
             

4-Fluoro-3-chloro aniline treated with potassium thiocyanate in the presence of acetic acid and bromine were converted into 2-amino-6-fluoro-7-chloro (1,3)-benzothiazole which was further treated with hydrazine hydrate in the presence of ethylene glycol results 2-hydrazino-6-fluoro-7-chloro(1,3)-benzothiazole,  which was further treated with various aldehydes in the presence of ethanol and HCl results (substituted benzyl hydrazino)-6-fluoro-7-chloro-(1,3)-benzothiazole.  It was treated with azomethane in dioxan to a well stirred mixture of chloroacetyl chloride and triethyl amine results to obtain compounds. The above said compound was refluxed with equimolar quantities of various substituted primary and secondary amines for two hours in the presence of dimethyl formamide to obtain different respective azetidinones derivatives.  Some of the compounds have promising anti-inflammatory and anthelmintic activity.             
 

This paper describes the results of hydrogeochemistry to generate baseline information on hydrochemical evolution of the groundwater is related to the flow path of groundwater. The Gadilam River Basin in Tamilnadu is characterized by different geological formations like, and groundwater is the major source for domestic,  agriculture  and  other  water-related  activities.  The  chief hydrogeochemical facies of the groundwater is Na-Cl. The waters are subjected to evaporation or evapotranspiration process tends to remove ions from the waters for formation of new clay minerals and precipitation of CaCO3. Comparison of river water with the groundwater reveals that recharge of river water into the groundwater system during post monsoon period. The study with mixing model exhibits higher percentage of mixing of parent solution in the North West part of the study area.             
 

The Varuna river water samples from different sources were analysed for various physico-chemical and bacteriological parameters during the period from March 2003 to February 2004. The study revealed a fluctuating behaviour of different parameters through out the study period. It is observed that quality of some water samples are good for drinking purpose and others are unsuitable for drinking and irrigation purposes.   
 

The condensation of 3-p-nitrophenoxy methyl acetate and hydrazine hydrate to give p-nitro-phenoxy acetyl hydrazide (1). The hydrazide (1) reacts with various aromatic acid in the presence of POCl3 to give 3-(p-nitro phenoxymethyl)-5-aryl-1,3,4-oxadiazole (3). Further these oxadiazole (3) condensed with 2,4,6-trinitroaniline to yield the title compounds (4). These compounds have been characterized by U.V., I.R. and PMR spectra. The antimicrobial activity of these compounds have also been screened.    

Healthcare facilities in khargone produce a variety of infectious wastes and they are co-disposed along with municipal solid wastes. Available data on the types and potential of infection is scanty. This study was carried out to assess the microbial load and the predominant species of infectious bacteria in the solid wastes from four hospitals (private and Government owned) and selected residential areas closer to a large hospital (<500 m) and those, which are farther away. The dominant organisms in the hospital wastes were Klebsiella pneumonia (34.9%) and Staphylococcus aureus (22.2%). K. pneumonia is dominant in the residential areas closer to the hospital and K. aerogenes is found in those far away. Along with these, species of Salmonella, Pseudomonas, Candida, Escherichia, Entercocci and aerobic spore bearers were also found in the wastes from residential areas.      
 

In this paper, we have described a method which is convenient,  simple,  quick,  and of general applicability. It gives better accuracy and more precise results within 0.5% error compared to the established procedures.         

In the present investigation an attempt has been made to experimentally test the antimicrobial effect of Salvadora persia against four bacterial species, such as Klebsiella pneumoniae, Proteus vulgaris, Pseudomonas aeruginosa and Staphylococcus aureus. The effect of ethanolic extract against the pathogens was tested by disc diffusion technique. The study revealed that, the test organisms were highly susceptible to ethanolic extract of S. persica and this plant can be exploited for developing potential antimicrobial agents.                

Bore well water is the under ground water that comes  the seepage of surface water and is held in sub-soil and rocks. Bore well water is expected to be good in quality and less polluted. The use of fertilizers, pesticides and insecticides in rural areas, lime, bleaching powder, septic tanks, refuse dumps, etc., in urban areas are the main sources of soil and under ground water pollution. 
Physico-chemical analysis such as temperature, pH, and dissolved oxygen, total dissolved solids, chlorides, total alkalinity, calcium and magnesium hardness, Sulphate, phosphate, nitrate of bore wells water was carried out from ten sampling stations of West Nimar Region during June 2005 in order to asses water quality index.    
 

There are environmental and ecological impacts1 due to aquatic weeds of local origin. e.g  water hyacinth, bulrush, duck weed Elodia Hydrilla and cattalis etc. which can extract nitrogen and phosphorus from water and as a result can abate pollution to a certain extent. The study mainly summarizes the soil waste both industrial and domestic consisting of dried sludge of sewage. Soil sediments refer to the deposition of trace elements or material eroded by different paths of water bodies i.e. investigated by periodic variation of different lakes located at Jabalpur. The chemical characterization of lake sediment observed by variants of pH, calcium, Magnesium, ions, sulphur, phosphorous, zinc, copper, iron, influence of above parameters are affected the growth of aquatic weed accelerate, the high impact on ecological degradation.