Tratamento de efluentes urbanos utilizando wetlands construídos híbridos para remoção de nutrientes com barreira adsorvente removível.

Abstract

Resource management should follow a circular flow so that important substances such as phosphorous are not wasted in the form of water bodies pollutants. Therefore, the objective of this study was to investigate innovations focussing on the recovery of phosphorous in constructed wetland (CW), as well as related removal mechanisms and the more recent development and application of new substrates with high removal efficiency and potential for phosphorus recovery. Using bibliometric analysis, the most important P removal pathways were identified, concluding that substrate choice is one of the main aspects to be considered when aiming for phosphorous removal, and many improvements were obtained through the application of materials from either natural and artificial origins, as well as construction waste and by-products of industrial processes. Thus, it is important that the chosen materials for a wetland substrate must present affinity with phosphorous, recycling possibility, low cost and local availability, in order to approach the concepts of circular economy and sustainable development.