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Orientador(es)
Resumo(s)
The present work was part of a research project, which pursued the treatment and reuse of urban and industrial wastewaters as well as solid waste. Its main goal was the development of modular systems for wastewater treatment based on constructed wetlands (CWs). The project involves the concept of circular economy and the rationale of "using waste to treat waste", exploring the possibility of the treatment systems being composed of solid waste and by-products from significant industrial sectors. The work thereof presented describes the physical and chemical characterization of five waste solids, which were used as lab-scale fillers. Optical microscopy observations, μFRX and FTIR-ATR analyses were conducted to characterize the solid wastes before and after use in the CWs treating urban type wastewater. Results indicated that, among the five solid wastes studied, limestone fragments from construction showed favorable conditions to biofilm growth, and coal slags from power plants and cork granulates showed the highest indication of adsorption of organic compounds.
Descrição
Palavras-chave
circular economy constructed wetlands solid waste valorization sustainable development