Reverse Osmosis Concentrate: Physicochemical Characteristics, Environmental Impact, and Technologies

Autor: Hugo Valdés, Aldo Saavedra, Marcos Flores, Ismael Vera-Puerto, Hector Aviña, Marisol Belmonte
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Membranes, Vol 11, Iss 10, p 753 (2021)
Druh dokumentu: article
ISSN: 11100753
2077-0375
DOI: 10.3390/membranes11100753
Popis: This study’s aim is to generate a complete profile of reverse osmosis concentrate (ROC), including physicochemical characteristics, environmental impact, and technologies for ROC treatment, alongside element recovery with potential valorization. A systematic literature review was used to compile and analyze scientific information about ROC, and systematic identification and evaluation of the data/evidence in the articles were conducted using the methodological principles of grounded data theory. The literature analysis revealed that two actions are imperative: (1) countries should impose strict regulations to avoid the contamination of receiving water bodies and (2) desalination plants should apply circular economies. Currently, synergizing conventional and emerging technologies is the most efficient method to mitigate the environmental impact of desalination processes. However, constructed wetlands are an emerging technology that promise to be a viable multi-benefit solution, as they can provide simultaneous treatment of nutrients, metals, and trace organic contaminants at a relatively low cost, and are socially accepted; therefore, they are a sustainable solution.
Databáze: Directory of Open Access Journals