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Copper and Zinc Removal Efficiency of Two Reactive Filter Media Treating Motorway Runoff-Model for Service Life Estimation
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- Rodriguez Gomez, Raul (author)
- KTH,Vatten- och miljöteknik
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- Renman, Agnieszka (author)
- KTH,Vatten- och miljöteknik
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- Mahmoudzadeh, Batoul (author)
- Sverige Consulting Grp, Ramboll Water, SE-10462 Stockholm, Sweden.
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- (creator_code:org_t)
- 2021-09-20
- 2021
- English.
- In: Water. - : MDPI AG. - 2073-4441. ; 13:18
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The predominant techniques used for road runoff treatment are sedimentation and filtration. In filtration systems, the ability of the media to adsorb the contaminants is a finite process. Consequently, construction, operation and maintenance managers of such systems should know in advance the service life, i.e., when the used medium should be replaced, and associated costs of operation and maintenance. A batch experiment followed by a packed bed reactor (PBR) experiment addressed the kinetics of the studied media argon oxygen decarburization slag (AOD) and Polonite, followed by the development of a 1D-model to describe the change of concentration of Cu and Zn within time. The batch test results showed that Cu and Zn adsorption followed the Freundlich isotherms for AOD and Polonite. Those results coupled with the linear driving force model and the developed model resulted in good agreement between the PBR results and the simulation. The model was capable to predict (i), the service life at the hydraulic load of 0.18 m/h for AOD (Cu: 395 d; Zn: 479 d) and Polonite (Cu: 445 d; Zn: 910 d), to show (ii) the profile concentration in the PBR within time and the gradient of the concentration along the height of the reactor.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
Keyword
- 1D-model
- AOD
- packed bed reactor
- Polonite
- stormwater
- simulation
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- ref (subject category)
- art (subject category)
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