Browsing by Author "Ram Naresh Bharagava"

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Microalgae and advanced oxidative processes as treatment approaches for agro-industrial effluents
(Elsevier B.V., 2023) Clara Dourado Fenandes; Gabriela Pereira Barros; Ram Naresh Bharagava; Ajay Kumar; Sikandar I. Mulla; Lucas Carvalho Basilio Azevedo; Luiz Fernando Romanholo Ferreira
With population growth and the expansion of environmental regulations on the permanence of water quality, questions are being asked about the challenges faced by wastewater treatment plants from agro-industrial effluents. The generation of industrial effluents is a matter of global concern, as the containment and release of pollutants pose a risk to the health of ecosystems. The main factor that influences the development of processes for the treatment of wastewater is the origin of the effluent, since the composition and concentration of waste will determine the appropriate treatment. The agro-industrial effluents from dairy products, legumes or sugar-energy, have high organic loads that influence the rates of COD, BOD, in addition to being wastewater with a high concentration of suspended solids, nutrients (phosphorus and nitrogen) and pesticide residues, which fit them as unsuitable for direct disposal into the receiving water body. These pollutants require careful processes to avoid overloading water bodies. To remove or reduce these pollutants from wastewater, several strategies have been proposed, including physical-chemical and biotechnological ones that aim to reduce the concentration of these pollutants through environmental legislation. When analyzing that the main factor that influences the efficiency of the treatment processes is the origin of the effluent, strategies were highlighted as promising for the technological advance that contributes to the improvement of the performance in the treatments and the quality of removal of several pollutants. © 2023 Elsevier Inc.