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Revisão Produção Nacional Revisado por pares

BIBTEX RIS

A review of microalgae-based biorefineries approach for produced water treatment: Barriers, pretreatments, supplementation, and perspectives

2022; Elsevier BV; Volume: 10; Issue: 4 Linguagem: Inglês

10.1016/j.jece.2022.108096

2213-3437

Luiggi Cavalcanti Pessôa, Eric Pinheiro Cruz, Kricelle Mosquera Deamici, Bianca Bomfim Andrade, Natália Santana Carvalho, Suellen Rocha Vieira, Jania Betânia Alves da Silva, Luiz Antônio Magalhães Pontes, Carolina Oliveira de Souza, Janice Izabel Druzian, Denílson de Jesus Assis,

Biodiesel Production and Applications

Produced water (PW) is the largest effluent generated by the oil exploration and production industries worldwide. In recent years, microalgae-based biorefineries (MBBs) have emerged as a technological solution for biologically treating this effluent while concomitantly generating high-value-added products. Nevertheless, while demonstrating promising bioremediation results, this developing technology is still in the shadow of doubts. Many questions remain regarding the cultivation of microalgae in PW. This review critically explores the latest development of MBBs that use PW to justify and expand their potential economic, sustainable, and social benefits. We comprehensively discuss the identification of the main barriers inherent to PW that impair algal growth, the effect on the wastewater of carrying out pretreatments coupled with biological treatments, the meritorious supplementation with agro-industrial effluents, and the promising genera of algae so far utilized. To date, Chlorella, Scenedesmus, and Nannochloropsis are the most studied microalgal genera. Few studies have focused on the synthesis of market bioproducts, where biodiesel is preferred. We categorize future challenges and directions into five categories, providing insights to enhance MBBs productivity and how oil companies can compete sustainably.