Water Purification Technology through the Use of Solar Energy

Abstract

A variety of technical methods with gas (air or oxygen) release have been used to purify water in eutrophic lakes and reservoirs. They are roughly classified into two types: 1)destratification and circulation by air bullets or bubble plumes, and 2)direct aeration in a bottom layer by micro-bubbles. Their effectiveness has been verified in many dam reservoirs, however, their further improvement and development will be needed. In this paper, a bubble plume system through the use of solar energy was presented according to a previous study, and its development was discussed including the potential for a green technology.