Assessment of the significance of heavy metals, pesticides and other contaminants in recovered products from water resource recovery facilities
Rey-Martínez, Natalia (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Guisasola, Albert (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Baeza Labat, Juan Antonio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Data:	2022
Resum:	The recovery of valuable materials from municipal water resource recovery facilities (WRRF) is a promising option to implement circular economy in wastewater treatment. Different technologies are being evaluated at different WRRF to recover products such as struvite, bioplastics and cellulose. However, the quality of these recovered products remains to be assessed in terms of their possible contamination with various hazardous compounds that may compromise their application in agriculture or construction. The aim of this article is therefore to assess the quality of products recovered from various recovery techniques implemented at demonstration sites. The results obtained for heavy metals, pesticides, chloroalkanes and PAHs from the analysis of 15 recovered products are reported and compared to the closest regulation framework possible. In general, the results showed that the products met current regulations and only some of them slightly exceeded the limits for very specific pollutants and only for a specific use, such as the food industry. These results are promising to accelerate the market penetration of these recovered products. However, this work highlights the need for a novel regulatory framework for these products that fits with its current uses.
Ajuts:	European Commission 690323
Nota:	Altres ajuts: acords transformatius de la UAB
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Cellulose ; Heavy metals ; Resource recovery ; Wastewater ; Pesticides
Publicat a:	Resources, Conservation and Recycling, Vol. 182 (July 2022) , art. 106313, ISSN 1879-0658

DOI: 10.1016/j.resconrec.2022.106313

11 p, 3.8 MB

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