In this study activated carbon from corncob, an agro waste was used as an adsorbent for removal of malachite green and methyl violet from aqueous solutions. Parameters, such as adsorbent dosage, concentration of the dye, contact time and temperature were optimized with regard to the dye removal using the selected adsorbent.

A study was conducted to evaluate the current status of hospital waste management in Satna city. Through this investigation, it has been quite evident that a satisfactory hospital waste management system in government hospitals and private clinic is severely lacking. The waste is generally dumped in a public place, such as the hospital surroundings, roadside or city corporation dustbin.

Beedi is prepared in unorganized sectors and the biddi binders are mostly perform the whole procedure at their home. Beedi is smoked, like the cigarette though there are a lot of differences. Beedi is wrapped by kendu leaves, tobacco is less roasted and lenght is shorter compared to cigarettes.

The present work deals with the removal of chromium (VI) ion by the activated charcoal derived from the dry leaves of Azadirachta indica. The effect of removal of Cr(VI) ion on concentration, dosage, pH, contact time, the presence of surfactant and temperature have been studied.

test article on castor by Dr vkj Rao

Recent progress in chemical water treatment has led to the development of advanced oxidation processes (AOPs). AOPs are based on the generation of hydroxyl radicals that can often achieve oxidative destruction of compounds refactory to the conventional ozonation or H2O oxidation.

In this review paper interaction of arsenic with iron hydroxide and effects of anions, such as silicate, phosphate and bicarbonate on arsenic adsorption by iron hydroxides, are discussed. Arsenic is strongly adsorbed on the surface sites of iron hydroxides through the formation of inner-sphere complexes.

Water Quality Index (WQI) is one of the most effective way to assess the quality of water. The present study is to assess the groundwater quality in relation to domestic use in village-Srungavarpu Kota (S.Kota) of Vizinagaram district of Andhra Pradesh.

Water quality of river Mandakini was assessed from Sati Anusuya to Karwi. Altogether 4 samples were collected from each sampling station and 5 sampling stations were selected for analysis. The quality analysis was made through the estimation of temperature, turbidity, DO, pH, EC, TDS, sodium, potassium, calcium, magnesium, carbonate, bicarbonate, chloride, sulphate, nitrate and phosphate.

The area chosen for study is A. Mettur. The aim of the present investigation is to conduct a door to door survey about the location of the houses, socio-economic status of the people and the problems encountered using the water was done. Bore well, well, canal, lake and river water samples were collected from different places and physico-chemical and biological parameters were analysed.