Martin Maier

Universität Heidelberg · Institute of Earth Sciences

The effect of anthropogenic impact on groundwater resources in Southeast Asian countries is subject to scientific debate, since it is increasingly considered a contributor to the observed contamination of groundwater with arsenic. It can be diverse, and range from direct pollution, through alteration of hydraulic conditions to indirect effects on g...

Electrocoagulation (EC) is gaining increased attention for water treatment as it efficiently removes various water contaminants. Therefore, EC was applied to remove arsenic from groundwater of a highly contaminated site in Hamburg, Germany. Groundwater containing 3250 and 14,600 µg/L arsenic, mainly as Arsenite (As(III)), was treated in three diffe...

Arsenic in groundwater is a global problem. However, in some particularly affected countries such as India (West Bengal), Bangladesh, Pakistan and Vietnam, the groundwater is used directly as drinking water. Regular ingestions of even very small amounts of arsenic has multiple negative health effects and it increases the cancer risk significantly,...

Arsenic (As) contamination of groundwater is commonly remediated by pump and treat. However, this technique is difficult to apply or maintain efficiently because the mobility of arsenic varies depending on the geochemical aquifer conditions. Arsenic interacting with the sediment can cause strong retardation, which is counteracted by ions competing...

In order to evaluate an inefficient pump & treat remediation at a contaminated site in Germany, processes of arsenic release into groundwater were studied. Groundwater and aquifer material sampling indicated elevated mobility of arsenic and a differentiated spatial distribution of As(V) and As(III). An artificial increase of arsenic mobilization in...

Die Arbeitsgruppe Hydrogeochemie und Hydrogeologie der Universität Heidelberg beschäftigt sich seit vielen Jahren mit Arsen im Grundwasser. Hierbei wurden durch Labor und Geländeuntersuchungen die geochemischen Faktoren ermittelt, die zur Sorption bzw. Desorption von Arsen führen und damit die Transporteigenschaften beeinflussen. An einem Altstando...