Phosphorus distribution pattern in sediments of natural and constructed wetlands

被引：31

作者：

Di Luca, G. A. ^{[1
]}

Maine, M. A. ^{[1
]}

Mufarrege, M. M. ^{[1
]}

Hadad, H. R. ^{[1
]}

Pedro, M. C. ^{[1
]}

Sanchez, G. C. ^{[1
]}

Caffaratti, S. E. ^{[1
]}

机构：

[1] UNL, CONICET, IQAL, Fac Ingn Quim,Quim Analit, Santiago del Estero 2829, RA-3000 Santa Fe, Argentina

来源：

ECOLOGICAL ENGINEERING | 2017年 / 108卷

关键词：

Phosphorus; Water; Sediment; Fractionation; Wetlands; Retention; FLOODED-DRAINED SOILS; PHOSPHATE SORPTION; PALMONES RIVER; WATER; RETENTION; IRON; ADSORPTION; DESORPTION; NUTRIENTS; EXCHANGE;

D O I：

10.1016/j.ecoleng.2017.08.038

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Two constructed wetlands for treating industrial and sewage effluents (CW1 and CW2) and two natural wetlands (NW1 and NW2), located in Argentina, were studied. The aims of the study were (1) to assess the accumulation and distribution pattern of P in the surface sediments of both natural and constructed wetlands, and (2) to evaluate P long-term retention in sediment. In the sediment of all study sites, inorganic P fractions were dominant. Similar incoming water composition was determined between NW2 and CW1 and between NW1 and CW2. Water composition governed P concentration and distribution in sediment, being mainly P bound to CaCO3 in CW1 and NW2 and bound to Fe(OOH) in NW1 and CW2. According to water and sediment characteristics, the four wetlands will continue removing P from water. Studied wetlands are efficient and sustainable in terms of P retention.

引用

页码：227 / 233

页数：7

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