Academic Journal
Arsenate removal from drinking water using by-products from conventional iron oxyhydroxides production as adsorbents coupled with submerged microfiltration unit
| Τίτλος: | Arsenate removal from drinking water using by-products from conventional iron oxyhydroxides production as adsorbents coupled with submerged microfiltration unit |
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| Συγγραφείς: | Usman, Muhammad, Katsoyiannis, Ioannis, Rodrigues, Josma Henna, Ernst, Mathias |
| Πηγή: | Environ Sci Pollut Res Int |
| Στοιχεία εκδότη: | Springer Science and Business Media LLC, 2020. |
| Έτος έκδοσης: | 2020 |
| Θεματικοί όροι: | Drinking Water, 0207 environmental engineering, 02 engineering and technology, Hydrogen-Ion Concentration, Ferric Compounds, 01 natural sciences, 6. Clean water, Arsenic, Water Purification, 3. Good health, 12. Responsible consumption, 13. Climate action, 8. Economic growth, Arsenates, Adsorption, Recent Developments and Innovative Strategies in Environmental Sciences in Europe, Water Pollutants, Chemical/analysis [MeSH], Micro-sized iron oxyhydroxides, Arsenic/analysis [MeSH], Water Purification [MeSH], Drinking Water [MeSH], Arsenates [MeSH], Drinking water production, Arsenic removal, Hydrogen-Ion Concentration [MeSH], Submerged membrane adsorption hybrid system, Granular ferric hydroxide, Ferric Compounds [MeSH], Adsorption kinetics, Waste utilization, Adsorption [MeSH], Water Pollutants, Chemical, 0105 earth and related environmental sciences |
| Περιγραφή: | Arsenic is among the major drinking water contaminants affecting populations in many countries because it causes serious health problems on long-term exposure. Two low-cost micro-sized iron oxyhydroxide-based adsorbents (which are by-products of the industrial production process of granular adsorbents), namely, micro granular ferric hydroxide (μGFH) and micro tetravalent manganese feroxyhyte (μTMF), were applied in batch adsorption kinetic tests and submerged microfiltration membrane adsorption hybrid system (SMAHS) to remove pentavalent arsenic (As(V)) from modeled drinking water. The adsorbents media were characterized in terms of iron content, BET surface area, pore volume, and particle size. The results of adsorption kinetics show that initial adsorption rate of As(V) by μTMF is faster than μGFH. The SMAHS results revealed that hydraulic residence time of As(V) in the slurry reactor plays a critical role. At longer residence time, the achieved adsorption capacities at As(V) permeate concentration of 10 μg/L (WHO guideline value) are 0.95 and 1.04 μg/mg for μGFH and μTMF, respectively. At shorter residence time of ~ 3 h, μTMF was able to treat 1.4 times more volumes of arsenic-polluted water than μGFH under the optimized experimental conditions due to its fast kinetic behavior. The outcomes of this study confirm that micro-sized iron oyxhydroxides, by-products of conventional adsorbent production processes, can successfully be employed in the proposed hybrid water treatment system to achieve drinking water guideline value for arsenic, without considerable fouling of the porous membrane. |
| Τύπος εγγράφου: | Article Other literature type |
| Γλώσσα: | English |
| ISSN: | 1614-7499 0944-1344 |
| DOI: | 10.1007/s11356-020-08327-w |
| Σύνδεσμος πρόσβασης: | https://link.springer.com/content/pdf/10.1007/s11356-020-08327-w.pdf https://pubmed.ncbi.nlm.nih.gov/32277417 https://link.springer.com/content/pdf/10.1007/s11356-020-08327-w.pdf https://link.springer.com/article/10.1007/s11356-020-08327-w https://www.ncbi.nlm.nih.gov/pubmed/32277417 https://repository.publisso.de/resource/frl:6468694 |
| Rights: | CC BY |
| Αριθμός Καταχώρησης: | edsair.doi.dedup.....5de7939851a1c9259e9c638f34e9ab5b |
| Βάση Δεδομένων: | OpenAIRE |
| ISSN: | 16147499 09441344 |
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| DOI: | 10.1007/s11356-020-08327-w |