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Strain Pp G7 was introduced into the naphthalene degrading sand bed planted with Carex gracilis After 2 and 10 weeks, respectively, samples were taken from roots, rhizospheric sand and root-far sand.After cultivation, fluorescent colonies, 5 each of the samples, were characterized by RAPD-PCR.
The methods used to characterize bacteria range from classical to molecular techniques, including DNA-fingerprinting techniques and hybridization methods with r RNA-directed gene probes.
Work also involves in situ investigations of the colonization of the rhizoplane and the endorhizosphere by bacteria using laser confocal microscopy.
In experiments with different chromate concentrations, permanent damages occur at concentrations higher than 34 µM K.
This concentration is conform to 10 mg chromium per litre.
As(V) could precipitate as Fe As O4 or be immobilized on hydrated iron oxides. Even salt concentrations around 0.5 % are enough to affect all tested parameters negatively.
Under anaerobic conditions, As(V) was reduced to As(III), which could precipitate with Sd, respectively). For comparison: maximum capacity of salt in fresh water is 0.2 %.
The study aims to evaluate the environmental pollution associated with leachate entering the aquifer and the leachate migration into the groundwater using contaminant transport model.
In addition, the socioeconomic and health implications due to water quality deterioration is studied to propose remedial measures for better management practices to alleviate the impacts of leachate on groundwater.
Whereas after 2 weeks (A) the introduced strain – lane 17 – was detectable, indicated by stars, it was not possible to detect the strain after 10 weeks (B).
In batch models of wetland systems, the performances of As and heavy metal removal from artificial wastewater varied with the type of the constructed wetland. The heavy metals mostly accumulated in the plant roots.