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Adsorption of dissolved organics in lake water by aluminum oxide. Effect of molecular weight
Abstract
Dissolved organic compounds in a Swiss lake were fractionated into three molecular size classes by gel exclusion chromatography, and adsorption of each fraction on colloidal alumina was studied as a function of pH. Organic compounds with molecular weight (Mr) greater than 1000 formed strong complexes with the alumina surface, but low molecular weight compounds were weakly adsorbed. Electrophoretic mobility measurements indicated that alumina particles suspended in the original lake water were highly negatively charged because of adsorbed organic matter. Most of the adsorbed organic compounds were in the Mr range 1000 < Mr < 3000. Adsorption of these compounds during the treatment of drinking water by alum coagulation may be responsible for the preferential removal of trihalomethane precursors. Adsorption may also influence the molecular-weight distribution of dissolved organic material in lakes.
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Cited by
Liu, J.-F., Zhao, Z.-S., & Jiang, G.-B. (2008) · Environmental Science & Technology · doi:10.1021/es800924c · Cited by 1,084
Shen, X.-C., Li, D.-C., Sima, X.-F., Cheng, H.-Y., & Jiang, H. (2018) · Environmental Research · doi:10.1016/j.envres.2018.06.034 · Cited by 126
Metadata
- Authors
- Davis, J. A., & Gloor, R.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 1981-10
- Volume
- 15
- Issue
- 10
- Pages
- 1223-1229
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1978255650
- Cited by
- 320
- References
- 0
- FWCI
- 21.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Davis, J. A., & Gloor, R. (1981). Adsorption of dissolved organics in lake water by aluminum oxide. Effect of molecular weight. Environmental Science & Technology. https://doi.org/10.1021/es00092a012
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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