Degradation of the Microbiological Quality of Superficial and Ground water around El Haria Landfill.

Noura, Mansouri; Rachida, Assabaa; Kheira, Bennadji

Algerian Journal of Engineering Research
Volume 3, Numéro 1, Pages 35-39
2019-06-01

Degradation Of The Microbiological Quality Of Superficial And Ground Water Around El Haria Landfill.

Authors : Noura Mansouri . Rachida Assabaa . Kheira Bennadji .

Abstract

The controled landfill (technical landfill TL), is a very important pole for the treatment of solid waste. One can cite as a model study El Haria landfill (40 km north of Constantine) in operation from 2010 to 2015. After this year the city wastes were transfered to an open-air dump, just nearby the actual one. However the major problem registered on this dump is the leachate resulting from the degradation of buried wastes which were disposed off the outside of the landfill and which may present a source of potential intense microbiological contamination for the local groundwaters, particularly according to the excellent agricultural character of this region. The objective of the present work consists in the microbiological characterization of the leachate resulting from the degradation of waste stored in the open-air discharge. In fact this leachate is rejected to the external environment without any treatment, hence the imperative study of its impact on the microbiological quality of waters. The waters of two wells (40-50m deep) used for agriculture irrigation were considered. The obtained results showed that this leachate contained more than 30x105 cfu / ml of enterobacteria and more than 4x105 cfu / ml of total coliforms. The presence of staphylococci, streptococci and even salmonell was recorded. The analysis of the two wells waters confirmed a contamination by total coliforms (103 cfu / 100 ml) and enterococci (150 cfu / 100ml). Finally the results showed that these waters (leachates and well waters), presented a poor microbiological quality, compared with Algerian standards.