Cold Climate Phosphorus Uptake by Submerged Aquatic Plants in a Sewage Treatment Free Water Surface Wetland

2005 ◽  
Vol 40 (6-7) ◽  
pp. 1177-1190 ◽  
Author(s):  
BARBRO ULÉN ◽  
KARINW S. TONDERSKI
Keyword(s):  
Aquatic Plants ◽  
Water Surface ◽  
Sewage Treatment ◽  
Phosphorus Uptake ◽  
Free Water ◽  
Cold Climate ◽  
Free Water Surface ◽  
Submerged Aquatic Plants ◽  
Surface Wetland

scholarly journals Spatial Changes in Microbial Communities along Different Functional Zones of a Free-Water Surface Wetland

2020 ◽  
Vol 8 (10) ◽  
pp. 1604
Author(s):  
Mikhail V. Semenov ◽  
George S. Krasnov ◽  
Ksenia Y. Rybka ◽  
Sergey L. Kharitonov ◽  
Yulia A. Zavgorodnyaya ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetlands ◽  
Organic Pollutants ◽  
Water Surface ◽  
Particle Diameter ◽  
Free Water ◽  
Free Water Surface ◽  
Spatial Changes ◽  
Functional Zones ◽  
Surface Wetland

Constructed wetlands (CWs) are complicated ecosystems that include vegetation, sediments, and the associated microbiome mediating numerous processes in wastewater treatment. CWs have various functional zones where contrasting biochemical processes occur. Since these zones are characterized by different particle-size composition, physicochemical conditions, and vegetation, one can expect the presence of distinct microbiomes across different CW zones. Here, we investigated spatial changes in microbiomes along different functional zones of a free-water surface wetland located in Moscow, Russia. The microbiome structure was analyzed using Illumina MiSeq amplicon sequencing. We also determined particle diameter and surface area of sediments, as well as chemical composition of organic pollutants in different CW zones. Specific organic particle aggregates similar to activated sludge flocs were identified in the sediments. The highest accumulation of hydrocarbons was found in the zones with predominant sedimentation of fine fractions. Phytofilters had the highest rate of organic pollutants decomposition and predominance of Smithella, Ignavibacterium, and Methanothrix. The sedimentation tank had lower microbial diversity, and higher relative abundances of Parcubacteria, Proteiniclasticum, and Macellibacteroides, as well as higher predicted abundances of genes related to methanogenesis and methanotrophy. Thus, spatial changes in microbiomes of constructed wetlands can be associated with different types of wastewater treatment processes.

Heavy Metal Behaviour in an Experimental Free Water Surface Wetland in the Venice Lagoon Watershed

2007 ◽  
Vol 183 (1-4) ◽  
pp. 143-151 ◽  
Author(s):  
Erika Mattiuzzo ◽  
Laura Favero ◽  
Francesca Zennaro ◽  
Daniel Franco
Keyword(s):  
Heavy Metal ◽  
Water Surface ◽  
Free Water ◽  
Venice Lagoon ◽  
Free Water Surface ◽  
Surface Wetland

Two-step system consisting of novel vertical flow and free water surface constructed wetland for effective sewage treatment and reuse

2020 ◽  
Vol 306 ◽  
pp. 123095 ◽  
Author(s):  
X. Cuong Nguyen ◽  
D. Duc Nguyen ◽  
Q. Ba Tran ◽  
T.T. Huyen Nguyen ◽  
T.K. Anh Tran ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Water Surface ◽  
Sewage Treatment ◽  
Free Water ◽  
Vertical Flow ◽  
Free Water Surface

Nitrate reduction in a simulated free-water surface wetland system

2011 ◽  
Vol 45 (17) ◽  
pp. 5587-5598 ◽  
Author(s):  
Teresa M. Misiti ◽  
Malek G. Hajaya ◽  
Spyros G. Pavlostathis
Keyword(s):  
Nitrate Reduction ◽  
Water Surface ◽  
Free Water ◽  
Free Water Surface ◽  
Wetland System ◽  
Surface Wetland

Combined biochar vertical flow and free-water surface constructed wetland system for dormitory sewage treatment and reuse

2020 ◽  
Vol 713 ◽  
pp. 136404 ◽  
Author(s):  
X. Cuong Nguyen ◽  
T.C. Phuong Tran ◽  
V. Hoan Hoang ◽  
T. Phuong Nguyen ◽  
Soon Woong Chang ◽  
...  
Keyword(s):  
Constructed Wetland ◽  
Water Surface ◽  
Sewage Treatment ◽  
Free Water ◽  
Vertical Flow ◽  
Free Water Surface ◽  
Wetland System
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