Phase distribution and removal of pharmaceuticals and personal care products during anaerobic sludge digestion
書誌事項
- タイトル別名
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- Adsorption of fullerene nC[60] on activated sludge: Kinetics, equilibrium and influencing factors
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説明
The increasing production and use of fullerene C[60] nanomaterials raises concerns about environmental risks and human health. However, the materials’ behavior and fate during wastewater treatment are still unclear. We investigated the adsorption of aqueous nanoscale fullerene (nC[60]) on activated sludge by analysis of adsorption kinetics and equilibrium. The adsorption process closely followed the pseudo-second-order kinetics model, and the adsorption isotherm was well described by the Freundlich model. The adsorption process depended strongly on the activated sludge concentration and pH, but there was no significant effect by the temperature and low ionic strength. The dissolved organic matter in wastewater could obviously inhibit the adsorption process. At mixed liquor suspended solids concentrations of 1000 and 2000 mg/L after 1 h mixing, nC[60] removal by adsorption reached 47% and 74%, respectively. Thus, adsorption could play an important role in the fate of nC[60] during conventional biological wastewater treatment. The analysis of factors influencing the adsorption amounts indicated that the nC[60] adsorption behavior on activated sludge was affected by the combined forces of the hydrophobic attraction, electrostatic repulsion and steric interaction.
収録刊行物
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- Chemical Engineering Journal
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Chemical Engineering Journal 225 365-371, 2013-06
Elsevier B.V.
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詳細情報 詳細情報について
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- CRID
- 1050001335769818752
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- NII論文ID
- 120005245058
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- NII書誌ID
- AA11095026
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- ISSN
- 13858947
- 03043894
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- HANDLE
- 2433/174229
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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