The Origin of Aluminum Flocs in Polluted Streams-Reference-Cited by-同舟云学术

The Origin of Aluminum Flocs in Polluted Streams

Published:2002-09-27 Issue:5590 Volume:297 Page:2245-2247
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Furrer Gerhard¹,Phillips Brian L.²,Ulrich Kai-Uwe³,Pöthig Rosemarie⁴,Casey William H.⁵

Affiliation:

1. Institute of Terrestrial Ecology, Eidgenössische Technische Hochschule Zürich, Grabenstrasse 3, CH-8952 Schlieren, Switzerland.

2. Department of Geosciences, State University of New York, Stony Brook, NY 11794–2100, USA.

3. Technical University of Dresden, Ecological Station Neunzehnhain, D-09514 Lengefeld, Germany.

4. Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, D-12587 Berlin, Germany.

5. Department of Land, Air, and Water Resources and Department of Geology, University of California, Davis, CA 95616, USA.

Abstract

About 240,000 square kilometers of Earth's surface is disrupted by mining, which creates watersheds that are polluted by acidity, aluminum, and heavy metals. Mixing of acidic effluent from old mines and acidic soils into waters with a higher pH causes precipitation of amorphous aluminum oxyhydroxide flocs that move in streams as suspended solids and transport adsorbed contaminants. On the basis of samples from nine streams, we show that these flocs probably form from aggregation of the ɛ -Keggin polyoxocation AlO 4 Al 12 (OH) 24 (H 2 O) 12 7+ (aq) (Al 13 ), because all of the flocs contain distinct Al(O) 4 centers similar to that of the Al 13 nanocluster.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference31 articles.

1. Nordstrom D. K., Geochim. Cosmochim. Acta 46, 681 (1982).

2. ___, Ball J. W., Science 232, 54 (1986).

3. Ulrich K.-U., Pöthig R., Acta Hydrochim. Hydrobiol. 28, 313 (2000).

4. R. W. Smith J. D. Hem U.S. Geol. Surv. Water Supply Pap. 1827-D (1972).

5. P. M. Bertsch D. R. Parker in The Environmental Chemistry of Aluminum G. Sposito Ed. (CRC Press Boca Raton FL ed. 2 1996) pp. 117–168.

Cited by 240 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Exfoliation and restacking route to Keggin-Al₁₃-treated layered ruthenium oxide for enhanced lithium ion storage performance;New Journal of Chemistry;2024

2. Characteristics and mechanisms of As(III) removal by potassium ferrate coupled with Al-based coagulants: Analysis of aluminum speciation distribution and transformation;Chemosphere;2023-02

3. Cr3+ incorporation into an Al3+ Keggin-type oligomer to form the Al25.7Cr6.3S216+ polycation;Inorganic Chemistry Communications;2022-07

4. Pollutant co-attenuation via in-stream interactions between mine drainage and municipal wastewater;Water Research;2022-05

5. Study on the precipitation of iron and the synchronous removal mechanisms of antimony and arsenic in the AMD under the induction of carbonate rocks;Environmental Science and Pollution Research;2022-03-22