18 Result(s)
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Article
Jan Vymazal
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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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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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Seed bank of Littorella uniflora (L.) Asch. in the Czech Republic, Central Europe: does burial depth and sediment type influence seed germination?
Littorella uniflora (Plantaginaceae) is a scarce and declining aquatic plant in Europe. Its population has been strongly reduced by changes in fishpond management (eutrophication) in the ...
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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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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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Preface: Wetlands biodiversity and processes—tools for conservation and management
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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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Removal of alkali metals and their sequestration in plants in constructed wetlands treating municipal sewage
This study is aimed at retention of K, Na, Mg, and Ca in two constructed wetlands (CWs) in the Czech Republic, and on the evaluation of particular standing stocks in both above- and belowground plant biomass. ...
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Plants used in constructed wetlands with horizontal subsurface flow: a review
The presence of macrophytes is one of the most conspicuous features of wetlands and their presence distinguishes constructed wetlands from unplanted soil filters or lagoons. The macrophytes growing in construc...
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Heavy metals in sediments from constructed wetlands treating municipal wastewater
Constructed wetlands are commonly used for treatment of municipal sewage. The treatment is usually aimed at removal of organics, suspended solids, nutrients and microbial pollution. The information on removal ...
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Removal of nitrogen in constructed wetlands with horizontal sub-sureface flow: a review
The paper describes the removal of nitrogen in horizontal sub-surface flow constructed wetlands (HF CWs) for various types of wastewater. The survey includes more than 900 annual means from more than 300 syste...
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Removal of Phosphorus in Constructed Wetlands with Horizontal Sub-Surface Flow in the Czech Republic
The major processes responsible for phosphorus (P) removal in constructed wetlands with horizontal sub-surface flow (HSF CWs) are adsorption, precipitation and plant uptake if the biomass is harvested. The fil...
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Subsurface horizontal-flow constructed wetlands for wastewater treatment: The Czech experience
The first full-scale constructed wetland (CW) in the Czech Republic was built in 1989 and there are now three tertiary systems and 50 secondary treatment facilities. We report here on the design and operationa...
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Response of everglades plant communities to nitrogen and phosphorus additions
Nitrogen(N) and phosphorus(P) were applied to sawgrass (Cladium jamaicense), mixed sawgrass-cattail (Typha domingensis), and slough (shallow water communities dominated byUtricularia spp.,Eleocharis spp., andPani...
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Uptake of lead, chromium, cadmium and cobalt byCladophora glomerata
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The use of periphyton communities for nutrient removal from polluted streams
The results of experiments on the efficiency of periphyton communities for nutrient removal from polluted streams in a continuous flow-through are given. The artifical stream (5 m × 0.7 m × 0.5 m) was made of ...
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Zn uptake by Cladophora glomerata
The uptake of zinc by Cladophora glomerata at different pH-values, light conditions and exposure periods is reported. Zinc uptake was pH-dependent, with uptake increasing with rising pH. Uptake was greatest withi...
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Short-term uptake of heavy metals by periphyton algae
The utilization of periphyton activity for the removal of heavy metals from enriched small streams has been examined. By means of short-term batch laboratory experiments the courses of metal uptake have been s...
