Wastewater reclamation has become a viable alternative to supplement water supplies in water short areas. In particular, membrane treatment has played an important role in purifying the water cost effectively. Reverse osmosis (RO) membranes have been shown to significantly reduce total dissolved solids, heavy metals, organic pollutants, viruses, bacteria and other dissolved contaminants.

Ozone technology has been used for the past two decades or more. It is, however, only now that its use in wastewater treatment has been recognized. The location of ozone use in wastewater treatment determines the goal of treatment. At the same time, ozone finds use in each stage of wastewater treatment.

To achieve successful treatment of the water, one should first know that no water is the same, every water is unique and should be treated uniquely. At present, ultrasound is being used in the field of water treatment.

This paper outlines the recent magnetic ion exchange process (MIEX process) to remove dissolved organic carbon and control of toxic THMs in drinking water supply.

The paper is about the removal of arsenic from aqueous solution using the bacterial species Acidithiobacillus ferrooxidans. The bacterium was cultured under aseptic condition.

This paper attempts to develop a most competent roughing filter combination for low-cost surface water treatment in rural areas by using different parameters of roughing filter such as length of filter, flow condition, filter media, head loss, and velocity.

This paper presents a detailed overview of the processes and technologies emerging globally in the field of nanoscience with specific application to water treatment systems. The paper highlights the cost - effectiveness and high - performance of such processes.