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http://earchive.tpu.ru/handle/11683/50228
Название: | Aminated glycidyl methacrylates as a support media for goethite nanoparticle enabled hybrid sorbents for arsenic removal: From copolymer synthesis to full-scale system modeling |
Авторы: | Khaled Taleb Markovski, Jasmina Hristovski, Kiril Rajakovic-Ognjanovic, Vladana Onjia, Antonije Marinkovic, Aleksandar |
Ключевые слова: | мышьяк; полимеры; гетит; моделирование |
Дата публикации: | 2016 |
Издатель: | Томский политехнический университет |
Библиографическое описание: | Aminated glycidyl methacrylates as a support media for goethite nanoparticle enabled hybrid sorbents for arsenic removal: From copolymer synthesis to full-scale system modeling / Khaled Taleb [et al.] // Resource-Efficient Technologies. — 2016. — Vol. 2, Iss. 1. — [P. 15-22]. |
Аннотация: | To achieve short mass transfer zones that enable arsenic removal under high hydraulic loading rates and short empty bed contact times neededfor small point-of-use packed bed applications, hybrid media was developed and tested. Cross-linked macroporous glycidyl methacrylatecopolymer support media was synthetized, amino modified and in-situ impregnated by goethite nanoparticles via an oxidative deposition in ahydrophilic/hydrophobic (water/xylene) system. The media properties were characterized via scanning electron microscopy (SEM), energydispersive X-ray analysis (EDS), X-ray diffraction (XRD), and surface area analysis. Arsenic removal capabilities of the hybrid goethiteimpregnated media were evaluated by conducting batch sorption tests, developing isotherms and simulating the breakthrough curve with a poresurface diffusion model (PSDM), after being verified by a short bed column (SBC) test. The high porous media (ep 0.7) contained ~16% of iron and exhibited Freundlich adsorption capacity parameter of K 369 (µg g-1)(L µg-1) 1/n and Freundlich intensity parameter of 1/n 0.54. Without engaging in taxing pilot scale testing, the PSDM was able to provide a good prediction of the media’s capacity and intraparticle mass transport properties under high hydraulic loading rates. |
URI: | http://earchive.tpu.ru/handle/11683/50228 |
ISSN: | 2405-6537 |
Располагается в коллекциях: | Resource-Efficient Technologies |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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dx.doi.org-10.1016-j.reffit.2016.04.002.pdf | 1,46 MB | Adobe PDF | Просмотреть/Открыть |
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