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Titolo:
Effects of recycled fgd liner material on water quality and macrophytes ofconstructed wetlands: A mesocosm experiment
Autore:
Ahn, C; Mitsch, WJ; Wolfe, WE;
Indirizzi:
Ohio State Univ, Enivronm Sci Grad Program, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 rad Program, Columbus, OH 43210 USA Ohio State Univ, Sch Nat Resources, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 t Resources, Columbus, OH 43210 USA Ohio State Univ, Dept Civil & Enivronm Engn & Geodet Sci, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 Geodet Sci, Columbus, OH 43210 USA
Titolo Testata:
WATER RESEARCH
fascicolo: 3, volume: 35, anno: 2001,
pagine: 633 - 642
SICI:
0043-1354(200103)35:3<633:EORFLM>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
DESULFURIZATION BY-PRODUCTS; MINESPOIL AMENDMENT; BORON TOXICITY; SOILS; PLANT; SOLUBILITY; SEDIMENTS; GROWTH;
Keywords:
constructed wetland; FGD; liner; phosphorus retention; biomass production; phytotoxicity; boron;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Mitsch, WJ Ohio State Univ, Enivronm Sci Grad Program, Columbus, OH 43210 USA Ohio State Univ Columbus OH USA 43210 , Columbus, OH 43210 USA
Citazione:
C. Ahn et al., "Effects of recycled fgd liner material on water quality and macrophytes ofconstructed wetlands: A mesocosm experiment", WATER RES, 35(3), 2001, pp. 633-642

Abstract

We investigated the use of flue-gas-desulfurization (FGD) by-products fromelectric power plant wet scrubbers as liners in wetlands constructed to improve mater quality, Mesocosm experiments were conducted over two consecutive growing seasons with different phosphorus loadings. Wetland mesocosms using FGD liners retained more total and soluble reactive phosphorus, with lower concentrations in the leachate (first year) and higher concentrations in the surface water (second year). Leachate was higher in conductivity (second year) and pH (both years) in lined mesocosms. Surface outflow did not reveal any significant difference in physicochemical characteristics betweenlined and unlined mesocosms. There was no significant difference in total biomass production of wetland plants between lined and unlined mesocosms although lon er average stem lengths and fewer stems bearing flowers were observed in mesocosms with FGD liners. Potentially phylotoxic boron was significantly higher in the belowground biomass of plants grown in lined mesocosms with low phosphorus lending. A larger-scale, long-term wetland experimentclose to full scale is recommended from this two-year. mesocosm study to better predict the potentially positive and negative effects of using FGD by-products in constructed wetlands. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 09/04/20 alle ore 20:12:19