Control mechanism of algal growth.

This paper investigates the adsorption of arsenic, As (III) and As (V) from water onto activated alumina (AA) which was used as an adsorbent in batch and column adsorption experiments and critically analyses the effect of various parameters, such as contact time, pH of water, adsorbent dose, and inlet arsenic concentration to find out removal of arsenic by adsorption on AA.

The disinfection of potable water is almost universally accomplished by the use of chlorine compounds and several chlorine-related compounds for water disinfection can be found.

Agencies engaged in treating & supplying drinking water are responsible to find suitable method of treatment to make the water potable.

Photocatalysis is an advanced oxidation process aiming at the complete conversion of harmful and toxic dissolved contaminants in natural or drinking water into carbon dioxide, water and inorganics in presence of semiconducting materials such as TiO2 and ZnO which act as catalysts.

The aim of this study was to review epidemiologic evidence, provide summary risk estimates of the association between exposure to chlorination disinfection by-products (DBPs) and congenital anomalies, and provide recommendations for future studies.