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Removal of Lignin f...
Removal of Lignin from Wastewater Generated by Mechanical Pulping Using Activated Charcoal and Fly Ash : Adsorption Kinetics
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- Andersson, Kerstin I. (författare)
- Mittuniversitetet,Institutionen för naturvetenskap, teknik och matematik (-2012),FSCN
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- Eriksson, Marie (författare)
- SCA R&D Ctr, SE-85121 Sundsvall, Sweden
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- Norgren, Magnus (författare)
- Mittuniversitetet,Institutionen för naturvetenskap, teknik och matematik (-2012)
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(creator_code:org_t)
- 2011-06-06
- 2011
- Engelska.
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Ingår i: Industrial & Engineering Chemistry Research. - : American Chemical Society (ACS). - 0888-5885 .- 1520-5045. ; 50:13, s. 7733-7739
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The possible application of adsorption for the removal of lignin-related material found in wastewater generated by mechanical pulping was investigated. Activated charcoal and fly ash were used as adsorbents in batch experiments. The lignin-related material exhibited properties well-suited for adsorption onto both adsorbents, although the sorption capacity of activated charcoal exceeds that of fly ash. The experimental data were fitted to pseudo-first- and pseudo-second-order rate kinetic expressions, and an attempt was made to find the rate-limiting step involved in the adsorption processes. The results showed that lignin adsorption onto both activated charcoal and fly ash follows pseudo-second-order rate kinetics and that both boundary-layer diffusion and intraparticle diffusion are likely involved in the rate-limiting mechanisms. Adsorption is an interesting option in advanced wastewater treatment, and fly ash appears to be a suitable low-cost adsorbent for recalcitrant organic pollutants.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- AQUEOUS-SOLUTION; DISSOLVED LIGNIN; BASIC DYE; WASTEWATERS; EFFLUENT; SUBSTANCES; EFFICIENCY; SORPTION; PHENOLS; CARBON
- Chemical engineering
- Kemiteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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