Groundwater Contamination From Waste Storage Works

Abstract

Groundwater is an important source of drinking water, especially for rural population. In the last years, bacteria, nitrate, organic chemicals and other pollutants existing in groundwater have increased public concern about the quality of groundwater. Groundwater provides about 22% of all freshwater withdrawals; 37% of agricultural use (mostly for irrigation); 37% of the public water supply withdrawals; 51% of all drinking water for the total population and 99% of drinking water for the rural population; 46% of domestic and commercial use; 24% of industrial and mining use. The most severe groundwater quality depreciation appeared in the rural built-up area, where the lack of minimum public facilities allows liquid waste to reach directly or indirectly into the groundwater. The paper analyzes the soil and groundwater behaviour in the presence of three of the most significant sources of groundwater contamination due to waste storage works: sewer lines, septic tanks and landfills.

Natural and anthropogenic driving forces as key elements in the Lower Danube Basin–South-Eastern Carpathians–North-Western Black Sea coast area lakes: a broken stepping stones for fish in a climatic change scenario?

“…The relationship between alkalinity and the group III lakes is interesting and may be an effect of pollution which altered their chemistry, in the northern Moldavia area where agriculture effects and a lack of water dilution occur [73,74].…”

Possibilities for Assessment and Geovisualization of Spatial and Temporal Water Quality Data Using a WebGIS Application

“…International studies show that communal sewage is one of the most significant sources of pollution in addition to industrial and agricultural activities, the treatment and purification of which is often unresolved for developed and developing countries [2][3][4][5][6]. Several studies specified that the lack of sewage treatment systems in rural areas causes sewage to enter groundwater, resulting in a severe degradation in groundwater quality in these areas [7][8][9][10]. Having reviewed the international literature, we found that although publications have been published regarding the environmental problems caused by sewage generated in settlements, a comprehensive investigation that would present the water quality before and after the construction of the sewerage network covering an entire town has not yet been carried out.…”

Proceso de vitrificación para solidificar/estabilizar una escoria de fundición: estudio preliminar

“…Por lo tanto, este residuo debe tener una disposición especial en celdas de seguridad, donde estas estructuras, además de representar un gasto adicional para las empresas, demandan grandes extensiones de terreno. Sin embargo, la mayor preocupación radica en que estas celdas se pueden degradar con el paso del tiempo y liberar los contaminantes confinados; lo que representa un potencial peligro de contaminación de los suelos, las aguas superficiales y subterráneas a sus alrededores (6) .…”