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Article
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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Article
Effect of Cd+2 on phosphate solubilizing abilities and hydrogen peroxide production of soil-borne micromycetes isolated from Phragmites australis-rhizosphere
The aims of this work were to evaluate the phosphate-solubilization and hydrogen peroxide (H2O2) production by the soil-borne micromycetes, Aspergillus japonicus, Penicillium italicum and ...
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Chapter
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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Article
Investigating the distribution and fate of Al, Cd, Cr, Cu, Mn, Ni, Pb and Zn in sewage-impacted mangrove-fringed creeks of Kenya, Tanzania and Mozambique
Coastal towns in the develo** world are faced with the challenge of wastewater treatment. Most of the domestic wastewater generated in these urban areas is discharged raw into the surrounding mangrove forest...
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Article
Microbial nitrogen transformation in constructed wetlands treating contaminated groundwater
Pathways of ammonium (NH4 +) removal were investigated using the stable isotope approach in constructed wetlands (CWs). We investigated and compared several types of CWs: planted horizonta...
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Article
The dynamics of low-chlorinated benzenes in a pilot-scale constructed wetland and a hydroponic plant root mat treating sulfate-rich groundwater
A rarely used hydroponic plant root mat filter (PRMF, of 6 m2) and a horizontal subsurface flow constructed wetland (HSSF CW, of 6 m2), operating in continuous flow and discontinuous outflow flushing modes, were ...
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Chapter and Conference Paper
The Status of Research on Constructed Wetlands
Constructed (treatment) wetlands have been state of the art in wastewater treatment technology for decades. Design and operation are determined mainly on the basis of the results of long-term experience. Knowl...
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Article
Composition changes in the cuticular surface lipids of the helophytes Phragmites australis and Juncus effusus as result of pollutant exposure
Helophytes like rush and reed are increasingly used for phytoremediation of contaminated water. This study characterises the response of rush and reed plants to chemical stressors such as chlorobenzene, benzen...
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Article
Potential roles of anaerobic ammonium and methane oxidation in the nitrogen cycle of wetland ecosystems
Anaerobic ammonium oxidation (anammox) and anaerobic methane oxidation (ANME coupled to denitrification) with nitrite as electron acceptor are two of the most recent discoveries in the microbial nitrogen cycle...
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Chapter and Conference Paper
CONSTRUCTED WETLANDS AND THEIR PERFORMANCE FOR TREATMENT OF WATER CONTAMINATED WITH ARSENIC AND HEAVY METALS
This study investigated the removal mechanisms of arsenic and heavy metals in constructed wetland systems. The biotic and abiotic processes in the wetlands and the influences of plants, soil and micro-organism...
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Article
Model Experiments on the Influence of Artificial Humic Compounds on Chemodenitrification
Chemodenitrification is of importance in both soils and the treatment of some types of wastewater. During model experiments,the impact of various conditions, such as pH and especially artificial humic matter a...
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Chapter
Zum Abbau aromatischer Xenobiotika im Wurzelraum von Helophyten und zur Beeinflussung der Bakterienzönose in der Rhizosphäre durch Schadstoffexposition
Degradation of 2,6-dimethylphenol, 4-nitrophenol and naphthalene, which are potential aromatic contaminants of the environment was investigated in the root sphere of helophytes applying both batch- and continu...
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Article
Phosphine in the Urban Air of Bei**g and Its Possible Sources
Both as an air pollutant and as a gaseous component of the local phosphorus cycle, phosphine (PH3) was found in the urban air of Bei**g. Other possible sources, like paddy fields and water reservoirs, were selec...
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Article
Phosphine by bio-corrosion of phosphide-rich iron
Phosphine is a toxic agent and part of the phosphorus cycle. A hitherto unknown formation mechanism for phosphine in the environment was investigated. When iron samples containing iron phosphide were incubated...
