scholarly journals Removal of radioactive cesium from contaminated water by whey protein amyloids–carbon hybrid filters

RSC Advances ◽  
2021 ◽  
Vol 11 (51) ◽  
pp. 32454-32458
Author(s):  
Nadine M. Chiera ◽  
Sreenath Bolisetty ◽  
Robert Eichler ◽  
Raffaele Mezzenga ◽  
Patrick Steinegger

The efficient removal of the long-lived fission product 137Cs from radioactive water by a filter material based on whey protein fibrils and activated carbon.

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 386
Author(s):  
Laura Cristina Ramírez-Rodríguez ◽  
Luis Eduardo Díaz Barrera ◽  
María Ximena Quintanilla-Carvajal ◽  
Didilia Ileana Mendoza-Castillo ◽  
Adrián Bonilla-Petriciolet ◽  
...  

Water contamination by mercury and chromium has a direct effect in human health. A promising technology to remove heavy metals by membrane filtration is the use of hybrid membranes produced with whey protein fibrils (WPF) and activated carbon (AC). In this study, the best conditions to produce WPF by heat treatment were determined to maximize the removal of mercury and chromium from water using a central composed design. The results indicated that the best conditions to prepare WPF were 74 °C, 7 h and 3.8% of whey protein with adsorption capacities of 25 and 18 mg/g and removal efficiencies of 81 and 57% for mercury and chromium, respectively. WPF and AC were used to prepare a hybrid membrane that was characterized using transmission electron microscopy, atomic force microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy and Brunauer–Emmett–Teller surface area measurements. Batch filtration experiments were performed with the hybrid membrane for chromium and mercury removal at 25, 50 and 100 mg/L to determine its adsorption capacities. A high performance of the hybrid membrane was demonstrated removing efficiently mercury and chromium from water, thus supporting more than ten filtration cycles.


2021 ◽  
Vol 60 (11) ◽  
pp. 4332-4341
Author(s):  
Hossein Shahriyari Far ◽  
Mahdi Hasanzadeh ◽  
Mina Najafi ◽  
Targol Rahimi Masale Nezhad ◽  
Mahboubeh Rabbani

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 40378-40386 ◽  
Author(s):  
Patrick M. Melia ◽  
Rosa Busquets ◽  
Santanu Ray ◽  
Andrew B. Cundy

Agricultural production results in wastes that can be re-used to improve the quality of the environment.


2016 ◽  
Vol 227 (12) ◽  
Author(s):  
Pricila Marin ◽  
Aparecido Nivaldo Módenes ◽  
Rosângela Bergamasco ◽  
Paulo Roberto Paraíso ◽  
Safia Hamoudi

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