Contribution to the study of the effect of urban wastewater on the degradation of ground water quality and to the treatment by filtration on dune sand of the city of Bechar (Algeria)
Year: 2011
Type: article
Abstract: The survey led on six residuary water stations localized on the course of the river of Bechar and ground waters used by the riparian population for drinking or irrigation, permitted to value the impact of wastewater on the quality of the ground water. The analyses done (April 2008, 2009 and July 2009), revealed a chemical pollution of the ground waters by the superficial out-flows of the river of Bechar whose waste waters undergo as low percolation. This is confirmed by the raised contents in chlorides that pass 1,000 mg/l, in sulfur that exceeds 900 mg/l, which explains the conductivity values that reach 4,500 μS/cm. The calcium and magnesium exceed 200 mg/l. Bromine, zinc, iodine and the manganese are also more or less present with important contents, the contents in nitrates, reaching 99.23 mg/l, in nitrite 8 mg/l, prove a nitric pollution of the studied ground water. In other words, the degree of contamination varies from one site to another according to the remoteness of the source of pollution, the depth of the water table and according to the maintenance of the well and its surroundings. Because of its known advantages and expected potentialities, the study, exploitation and valorization of the sand filter has been chosen as a simple and effective process in it simple mentation and operation. Moreover, sand is virtually the only material available in South West Algeria.
Source: Desalination and Water Treatment
Institution: University of Bechar
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,000
OpenAlex ID: W2020072559