New applications of fine-grained iron oxyhydroxides as cost-effective arsenic adsorbents in water treatment

Publikationstyp
Doctoral Thesis
Date Issued
2020
Sprache
English
Author(s)
Usman, Muhammad  orcid-logo
Advisor
Ernst, Mathias  orcid-logo
Referee
Jekel, Martin  
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2020-10-20
Institut
Wasserressourcen und Wasserversorgung B-11  
TORE-DOI
10.15480/882.3388
TORE-URI
http://hdl.handle.net/11420/9130
The adsorption of arsenic, a toxic pollutant found in surface and groundwater resources, onto two micro-sized iron oxyhydroxides as adsorbents was investigated through batch adsorption tests. Moreover, arsenic adsorption in a slurry bed reactor was combined with a submerged microfiltration (MF) membrane unit to create an innovative and cost-effective water treatment system. Experimentally determined arsenic removal rates were modeled using a developed mathematical model. This work confirms that micro-sized iron oxyhydroxides, by-products of conventional adsorbent production processes, can successfully be employed in the proposed water treatment system to achieve a drinking water standard of < 10 µg As/L without fouling of the MF membrane
Subjects
arsenic adsorption
arsenic removal
membrane processes
submerged membrane adsorption hybrid system
dynamic membrane adsorber
modeling
water and wastewater treatment
DDC Class
500: Naturwissenschaften
570: Biowissenschaften, Biologie
620: Ingenieurwissenschaften
Lizenz
https://creativecommons.org/licenses/by/4.0/
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