The DOI matches its Crossref record.
Bioregeneration of Activated Carbon in a Fluidized GAC Bed Treating Bleached Kraft Mill Secondary Effluent
Abstract
Secondary effluent from a bleached kraft mill activated sludge plant was treated in a pilot scale fluidized bed to remove residual organic carbon and AOX. Granular activated carbon was used as an adsorbent and support material for biomass. Physical adsorption and biodegradation were followed in a period of 18 weeks. Reduction of dissolved organic carbon was 57% throughout the period, mean load being 0.9 g of DOC/kg activated carbon in a day. AOX removal was more efficient, 70-90%. Reduction rate decreased in the course of time but could be partly recovered with addition of nutrients (P, N) to the nutrient deficient feed. A parallel experimental reactor was regenerated with ultrasonication/infrared - treatment. Physical regeneration gave a remarkable but temporary increase in the removal rate. A stable share of the total removal of DOC, 20-30%, was due to biodegradation and bioregeneration.
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“A novel approach entailing partial bioregeneration (physical adsorption on fluidized biological GAC followed by biodegradation and desorption), coupled with complementary periodic physical regeneration of 50% of total GAC, has been reported by Vuoriranta et al. 217 The system was observed to achieve an improved COD and color removal apart from reduction in regeneration cost and weight loss of GAC.”
From Hybrid Treatment Systems for Dye Wastewater (2007) · cites this paper as [217]
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Hybrid Treatment Systems for Dye Wastewater
Hai, F. I., Yamamoto, K., & Fukushi, K. (2007) · Critical Reviews in Environmental Science and Technology · doi:10.1080/10643380601174723 · Cited by 557
Metadata
- Authors
- Vuoriranta, P., & Remo, S.
- Venue
- Water Science and Technology
- Publisher
- IWA Publishing
- Published
- 1994-03-01
- Volume
- 29
- Issue
- 5-6
- Pages
- 239-246
- ISSN
- 0273-1223
- 1996-9732
- Cited by
- 11
- References
- 0
- Language
- en
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