scholarly journals Improving nutrient removal performance of surface flow constructed wetlands in winter using hardy submerged plant-benthic fauna systems

RSC Advances ◽  
2018 ◽  
Vol 8 (73) ◽  
pp. 42179-42188 ◽  
Author(s):  
Ying Guo ◽  
Huijun Xie ◽  
Jian Zhang ◽  
Wengang Wang ◽  
Huu Hao Ngo ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Nutrient Removal ◽  
Benthic Fauna ◽  
Surface Flow ◽  
Submerged Plant ◽  
Surface Flow Constructed Wetlands

A novel hardy submerged plant-benthic fauna systems to enhance the performance of surface flow constructed wetlands in winter.

Suitability of macrophytes for nutrient removal from surface flow constructed wetlands receiving secondary treated sewage effluent in Queensland, Australia

2003 ◽  
Vol 48 (2) ◽  
pp. 121-128 ◽  
Author(s):  
M. Greenway
Keyword(s):  
Water Column ◽  
Constructed Wetlands ◽  
Nutrient Removal ◽  
Native Species ◽  
Plant Biomass ◽  
Nutrient Content ◽  
Surface Flow ◽  
Secondary Effluent ◽  
Surface Flow Constructed Wetlands ◽  
Emergent Species

From a botanical perspective the major difference between waste stabilisation ponds and wetlands is the dominance of algae or floating plants in the former and emergent plants in the latter. Algae, floating and submerged plants remove nutrients directly from the water column whereas emergent species remove nutrients from the sediment. Water depth is a crucial factor in determining which plant types will become established. Surface flow constructed wetlands offer the greatest potential to grow a wide variety of different types of macrophytes. In assessing the suitability of plant species for nutrient removal, consideration must be given not only to nutrient uptake for growth but also storage of nutrients as plant biomass. A survey of macrophytes in 15 surface flow constructed wetlands treating secondary effluent was conducted in Queensland; 63 native species and 14 introduced species were found. Emergent species have been able to tolerate deeper water than in their natural environment and permanent waterlogging. All species grew well in the higher nutrient enriched wastewater. Submerged, floating leaved-attached and free floating species had the highest tissue nutrient content, followed by aquatic creepers. All these species remove nutrients from the water column. Emergent species had lower nutrient content but a greater biomass and were therefore able to store more nutrients per unit area of wetland. In order to maximise the efficiency of constructed wetlands for nutrient removal, a range of species should be used. Native species should be selected in preference to introduced/exotic species.

IDENTIFYING THE MOST SUITABLE AREAS FOR SURFACE FLOW WETLAND CONSTRUCTION IN LITHUANIA

2015 ◽  
Author(s):  
Antanas DUMBRAUSKAS ◽  
Nijolė BASTIENĖ ◽  
Petras PUNYS
Keyword(s):  
Constructed Wetlands ◽  
Ecological Status ◽  
Surface Flow ◽  
Gis Analysis ◽  
Proximity Analysis ◽  
Wetland Construction ◽  
The Mean ◽  
Two Phases ◽  
Terrain Features ◽  
Surface Flow Constructed Wetlands

GIS-based approach to find the suitable sites for surface flow constructed wetlands was employed for the Lithuanian river basins with low ecological status. According to the nature of the analysed criteria the flowchart consists of two phases. Criteria used include hydrographical network, soil properties, terrain features, land use, etc. Some of them have strictly defined values (constraints), and other ranges within certain limits (factors). Limited criteria were analysed using rejection principle and influencing factors using proximity analysis and overlay methods. Selecting the potential sites using standard GIS analysis tools there was estimated about 3286 sites for possible wetlands with the mean area of inflow basin about 4 km2 in the basins of water bodies at risk.

scholarly journals Evaluating the performance of horizontal sub-surface flow constructed wetlands: A case study from southern India

2021 ◽  
Vol 162 ◽  
pp. 106170
Author(s):  
Priyanka Jamwal ◽  
Anjali V. Raj ◽  
Lakshmi Raveendran ◽  
Shahana Shirin ◽  
Stephanie Connelly ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Surface Flow ◽  
Southern India ◽  
Surface Flow Constructed Wetlands

scholarly journals Enhanced Benzofluoranthrene Removal in Surface Flow Constructed Wetlands with the Addition of Carbon

ACS Omega ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 2865-2872
Author(s):  
Qingqing Cao ◽  
Yan Li ◽  
Yan Kang ◽  
Zizhang Guo
Keyword(s):  
Constructed Wetlands ◽  
Surface Flow ◽  
Surface Flow Constructed Wetlands

Substrate Organic Matter to Improve Nitrate Removal in Surface-Flow Constructed Wetlands

2007 ◽  
Vol 36 (1) ◽  
pp. 194-207 ◽  
Author(s):  
Michael R. Burchell ◽  
R. Wayne Skaggs ◽  
Charles R. Lee ◽  
Steven Broome ◽  
George M. Chescheir ◽  
...  
Keyword(s):  
Organic Matter ◽  
Constructed Wetlands ◽  
Nitrate Removal ◽  
Surface Flow ◽  
Surface Flow Constructed Wetlands
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