Assessment of a hybrid UV-LED-membrane distillation process: Focus on fouling mitigation

Flávia C.R. Costa; Amanda R. Fortes; Clarissa D. Braga; Gemima S. Arcanjo; Luiza Grossi; Ann H. Mounteer; Wagner G. Moravia; Konrad Koch; Jörg E. Drewes; Bárbara C. Ricci; Míriam C.S. Amaral

doi:10.1016/j.seppur.2022.121003

Assessment of a hybrid UV-LED-membrane distillation process: Focus on fouling mitigation

Flávia C.R. Costa, Amanda R. Fortes, Clarissa D. Braga, Gemima S. Arcanjo, Luiza Grossi, Ann H. Mounteer, Wagner G. Moravia, Konrad Koch, Jörg E. Drewes, Bárbara C. Ricci, Míriam C.S. Amaral

Lehrstuhl für Siedlungswasserwirtschaft

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5 Zitate (Scopus)

Abstract

This study aimed to manufacture a hybrid UV-LED and membrane distillation module (UV-LED-MD) for the first time. Its performance in wastewater post-treatment was evaluated, and the effect of UV-LED on membrane fouling was investigated. The removals of 17α-ethynylestradiol and estrogenic activity in the hybrid module were also assessed. In preliminary tests, flux tended to stabilize at an average value of 3.1 and 3.5 L m⁻² h⁻¹ in MD and UV-LED-MD, respectively. When treating wastewater, MD and UV-LED-MD presented similar performances. P-PO₄^3- removal was higher in UV-LED-MD. The hybrid module and MD had similar performance in hormone removal efficiencies (>97.7%) and estrogenic activity removals (>99.0%). The membrane from UV-LED-MD was less fouled according to visual inspection. However, the UV-LED-MD membrane exhibited a greater flux decline. The fouling layer in UV-LED-MD was much less adhered to the membrane. The lower adhesion of the fouling to the membrane means a great practical operational advantage, which justifies further investigations into the UV-LED and MD coupling.

Originalsprache	Englisch
Aufsatznummer	121003
Fachzeitschrift	Separation and Purification Technology
Jahrgang	292
DOIs	https://doi.org/10.1016/j.seppur.2022.121003
Publikationsstatus	Veröffentlicht - 1 Juli 2022

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10.1016/j.seppur.2022.121003

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title = "Assessment of a hybrid UV-LED-membrane distillation process: Focus on fouling mitigation",

abstract = "This study aimed to manufacture a hybrid UV-LED and membrane distillation module (UV-LED-MD) for the first time. Its performance in wastewater post-treatment was evaluated, and the effect of UV-LED on membrane fouling was investigated. The removals of 17α-ethynylestradiol and estrogenic activity in the hybrid module were also assessed. In preliminary tests, flux tended to stabilize at an average value of 3.1 and 3.5 L m−2 h−1 in MD and UV-LED-MD, respectively. When treating wastewater, MD and UV-LED-MD presented similar performances. P-PO43- removal was higher in UV-LED-MD. The hybrid module and MD had similar performance in hormone removal efficiencies (>97.7%) and estrogenic activity removals (>99.0%). The membrane from UV-LED-MD was less fouled according to visual inspection. However, the UV-LED-MD membrane exhibited a greater flux decline. The fouling layer in UV-LED-MD was much less adhered to the membrane. The lower adhesion of the fouling to the membrane means a great practical operational advantage, which justifies further investigations into the UV-LED and MD coupling.",

keywords = "17α-ethynylestradiol, Biofouling mitigation, Hybrid process, UV-LED, Wastewater treatment",

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AU - Costa, Flávia C.R.

AU - Fortes, Amanda R.

AU - Braga, Clarissa D.

AU - Arcanjo, Gemima S.

AU - Grossi, Luiza

AU - Mounteer, Ann H.

AU - Moravia, Wagner G.

AU - Koch, Konrad

AU - Drewes, Jörg E.

AU - Ricci, Bárbara C.

AU - Amaral, Míriam C.S.

PY - 2022/7/1

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AB - This study aimed to manufacture a hybrid UV-LED and membrane distillation module (UV-LED-MD) for the first time. Its performance in wastewater post-treatment was evaluated, and the effect of UV-LED on membrane fouling was investigated. The removals of 17α-ethynylestradiol and estrogenic activity in the hybrid module were also assessed. In preliminary tests, flux tended to stabilize at an average value of 3.1 and 3.5 L m−2 h−1 in MD and UV-LED-MD, respectively. When treating wastewater, MD and UV-LED-MD presented similar performances. P-PO43- removal was higher in UV-LED-MD. The hybrid module and MD had similar performance in hormone removal efficiencies (>97.7%) and estrogenic activity removals (>99.0%). The membrane from UV-LED-MD was less fouled according to visual inspection. However, the UV-LED-MD membrane exhibited a greater flux decline. The fouling layer in UV-LED-MD was much less adhered to the membrane. The lower adhesion of the fouling to the membrane means a great practical operational advantage, which justifies further investigations into the UV-LED and MD coupling.

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KW - Biofouling mitigation

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Assessment of a hybrid UV-LED-membrane distillation process: Focus on fouling mitigation

Abstract

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