Natural and Constructed Wetlands
Nutrients, heavy metals and energy cycling, and flow
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26 Result(s)
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Jan Vymazal
Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
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Article
Hybrid constructed wetlands integrated with microbial fuel cells and reactive bed filter for wastewater treatment and bioelectricity generation
The present study aimed to develop a pilot-scale integrated system composed of anaerobic biofilter (AF), a floating treatment wetland (FTW) unit, and a vertical flow constructed wetland coupled with a microbia...
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Field Study VI: The Effect of Loading Strategies on Removal Efficiencies of a Hybrid Constructed Wetland Treating Mixed Domestic and Agro-Industrial Wastewaters
The treatment of domestic wastewater using constructed wetlands (CWs) is common in the Czech Republic; however, the treatment of agro-industrial wastewater is still at the beginning of its application. A hybri...
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Effect of earthworms and plants on the efficiency of vertical flow systems treating university wastewater
One of the possible ways to improve the operation efficiency of constructed wetlands and to prevent their clogging is the application of earthworms. They have already been successfully applied for vermicompost...
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Effects of tidal operation on pilot-scale horizontal subsurface flow constructed wetland treating sulfate rich wastewater contaminated by chlorinated hydrocarbons
Three different flow regimes were carried out in a pilot-scale horizontal subsurface flow constructed wetland-treating sulfate rich wastewater contaminated with monochlorobenzene (MCB) and perchloroethene (PCE...
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Article
Hydroponic root mats for wastewater treatment—a review
Hydroponic root mats (HRMs) are ecotechnological wastewater treatment systems where aquatic vegetation forms buoyant filters by their dense interwoven roots and rhizomes, sometimes supported by rafts or other ...
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Preliminary investigation on the effect of earthworm and vegetation for sludge treatment in sludge treatment reed beds system
Sewage sludge treatment is becoming one of the most significant challenges for domestic wastewater management. Optimization of sludge management for reducing sludge handling cost in wastewater treatment plant ...
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Transformation of Chloroform in Constructed Wetlands
Chloroform is a volatile organic contaminate widely detected in groundwater, surface water and wastewater effluent, thus its fate in the natural treatment systems is of great importance to the environment and ...
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Distribution of Phosphorus and Nitrogen in Phragmites australis Aboveground Biomass
The objective of this study was to evaluate nitrogen and phosphorus compartmentalization in the aboveground biomass of Phragmites australis and its seasonality. The study was carried out at four sites in the litt...
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Treatment of Chlorinated Benzenes in Different Pilot Scale Constructed Wetlands
Chlorinated benzenes (CBs) are common pollutants in groundwater due to their broad usage in industry and agriculture. Remediation of CBs from contaminated groundwater is of great importance. Biodegradation has...
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Chapter
Decomposition of Phragmites australis in Relation to Depth of Flooding
Decomposition of Phragmites australis in relation to water depth was studied in the littoral reed stands of two fishponds near Prague during 2014. In both fishponds, three sites were selected along the water dept...
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Does the Presence of Weedy Species Affect the Treatment Efficiency in Constructed Wetlands with Horizontal Subsurface Flow?
In the Czech Republic, Phalaris arundinacea and Phragmites australis are two most frequent plants used in constructed wetlands for wastewater treatment. While Phragmites is quite resistant to the invasion of othe...
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Constructed Wetlands in the Czech Republic: 20 Years of Experience
Constructed wetlands (CWs) have been used in the Czech Republic since 1989. At present, about 250 systems are in operation. All systems have been designed with horizontal subsurface flow and most CWs have been...
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Chapter
Nutrient Accumulation by Phragmites australis and Phalaris arundinacea Growing in Two Constructed Wetlands for Wastewater Treatment
Phragmites australis and Phalaris arundinacea are two most commonly used plants in constructed wetlands for wastewater treatment in the Czech Republic. This chapter deals with development of biomass,...
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Algal Responses to Long-Term Nutrient Additions
Periphyton is an important part of the food web and is an integral part of the Everglades ecosystem (Wood and Maynard 1974; Browder et al. 1982). During the late summer and fall, thick mats floating at the sur...
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Experimental Assessment of Phosphorus Effects on Algal Assemblages in Dosing Mesocosms
Periphyton covered by calcareous precipitations in the Everglades is mostly dominated by cyanobacteria (Cyanoprokaryota, blue-green algae). In some areas of the Everglades, diatoms, desmids, and a few species ...
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Macrophyte Slough Community Response to Experimental Phosphorus Enrichment and Periphyton Removal
In this chapter, we will present evidence that may help in explaining the general pattern of response of wetland macrophyte communities to eutrophication, light, and competition as well as assess changes in pl...
