2026-04-17T01:23:58Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1620302025-12-04T20:53:53Zcom_2072_1057col_2072_478796col_2072_478917

Recycled cyanobacteria ashes for sono-enhanced photo-Fenton wastewater decontamination Artal López, Raúl Philippe, Laetitia Gómez, Elvira Serrà i Ramos, Albert Fotocatàlisi Depuració de l'aigua Photocatalysis Water purification Currently, there is massive generation of persistent organic pollutants, which are hazardous sub-stances, owing to the exponential industrial growth and the associated waste production. Conse-quently, green and reliable strategies for decontaminating wastewater and generating value-added products are needed to realize the global demand of sustainability. In this study, an efficient sustain-able circular process for water remediation with nearly zero residue production is developed using iron-rich cyanobacteria ashes. These cyanobacteria ashes are obtained from the combustion of Ar-throspira platensis var lonar and are used as Fenton-like photocatalysts in different assisted photo-Fenton reactions (processes enhanced by light). The use of these iron-rich cyanobacteria ashes is par-ticularly effective for the sono-enhanced photo-Fenton processes for water remediation (mineraliza-tion > 94.9%), with an outstanding reusability. At the end of the effective lifetime of the photocata-lyst, the remaining ashes can be subsequently reused as a supplement during the growth of new cy-anobacteria, thus closing the circular process. The proposed approach is a green and sustainable pro-cess integrating both carbon dioxide fixation and clean-water production aimed at attaining sustain-able development. 2020-05-22T10:32:58Z 2022-05-15T05:10:17Z 2020-05-15 2020-05-22T10:32:58Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Versió postprint del document publicat a: https://doi.org/10.1016/j.jclepro.2020.121881 Journal Of Cleaner Production, 2020, vol. 267, p. 121881 https://doi.org/10.1016/j.jclepro.2020.121881 info:eu-repo/grantAgreement/EC/H2020/754364/EU//EMPAPOSTDOCS-II cc-by-nc-nd (c) Elsevier B.V., 2020 http://creativecommons.org/licenses/by-nc-nd/3.0/es info:eu-repo/semantics/openAccess Elsevier B.V. Articles publicats en revistes (Ciència dels Materials i Química Física)