Thesis On Groundwater Pollution

In most cities in developing countries, the municipal solid waste is dumped in open dumps without proper lining which affects the environment.Due to unprecedented growth of population and urbanization, the generation of solid waste has increased and that has lead to environmental problems such as air, water and land pollution.

In most cities in developing countries, the municipal solid waste is dumped in open dumps without proper lining which affects the environment.Due to unprecedented growth of population and urbanization, the generation of solid waste has increased and that has lead to environmental problems such as air, water and land pollution.

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Herbal metabolism is hampered by pollutants within the waste water.

For example oxygen transport, which is essential for operation of constructed wetlands, could be interrupted.

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.

Experiments under defined conditions should show which concentrations of salt and heavy metals do have negative effects on growth processes in plants.

Changes in photosynthesis and CO fixation had been measured and whether there is an accumulation of toxic substances.Investigations address in particular the dependence of the composition, abundance and diversity of root-associated bacteria on the plant species, as well as the influence exerted by xenobiotics.The goal is to characterize the bacterial degraders.Last but not least, the part played by plants in the degradation and elimination of xenobiotics is being studied as well.Moreover, we plan to introduce high-performance bacterial degraders into the rhizosphere to see how they compete with autochthonous bacteria and whether they are able to establish themselves in the rhizosphere.Constructed wetland treatment of groundwater contaminated by chlorinated volatile organic compounds Mareike Ursula Braeckevelt (Ph D thesis at the University Leipzig, Faculty of Chemistry and Mineralogy, 2011)Ph D thesis - Mareike U.Braeckevelt (4.1 MB) Plants in constructed wetlands often have to grow under suboptimal conditions.The WHO’s threshold for drinking water is 0.05 mg Cr/ l. effusus in constructed wetlands that clean chromium containing waste water.However, 200 times higher concentration had no influence on J. Ullrich Soltmann, Ph D at the University of Bremen, 2005 We are trying to establish the role played by root-associated bacteria in the degradation of xenobiotics (aromatics, phenolic compounds and PAHs) in aquatic systems using helophytes.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.