Evaluation of biological and physicochemical risk of hospital liquid waste in Morocco

Abstract

Hospitals could be the source of pollution that must be taken into account in a general approach to health and environmental risk assessment. This study is part of the characterization of hospital liquid waste in a region in Morocco, whose objective is to assess their physicochemical, bacteriological and toxicological quality. The physicochemical analyzes carried out on 144 samples taken during one year showed a great fluctuation of some parameters such as: BOD5, COD, MES, PH, T°, as well as an important bacteriological load: Total coliforms, E coli, faecal Streptococci, pathogenic germs such as: Salmonella, Staphylococcus, 20% multi-resistant, virulent germs of emerging nature such as: Pseudomonas aeroginosa, and trace metal elements such as: mercury and copper that exceed the threshold of acceptability. At the end of this study, it turned out that hospital effluents are heavily loaded with pollutants. We therefore hope, in the light of the results provided by this study, to have generated a real awareness of the competent authorities on strengthening and improving the treatment of hospital liquid effluents such as developed countries, as the impact of these effluents on human and environmental health is harmful and can spread emerging diseases.

Analysis of Physico-Chemical and Bacteriological Parameters of Liquid Effluents from the Provincial Hospital Center in Sidi Kacem Morocco

“…In our study the result of the average values of this report is between 4.57 and 9.77, with a total average value of six months at about 7.66, this value higher than 3 means that these effl uents are hardly biodegradable. Other studies have similar results: Sarhane and al with an interval between 6.5 and 8.21 (29) , and El Mountassir and al with values ranging from 5.7 to 10.85 (21) , on the other hand Tahiri and al (19) and Touzani and al (18) found results lower than 3: 2.83 and 2.10 respectively.…”

The Urban Development in Relation to the Occurrence of Diseases in the Casa-Settat Region of Morocco during the Emergence of SARS-CoV-2

“…e population suffers and the environment is also in danger. Effluents have varied and dangerous characteristics, according to several studies that contain a large load of organic matter, microorganisms such as bacteria and e Scientific World Journal resistant viruses, and toxic gases [34][35][36][37]. e big problem is that the industrial and health units and the overcrowding generate a great risk of infection and contamination for the population of the region and a great risk of contamination for the environment as well as a real health alert that threatens the greatest Moroccan regions as clearly demonstrated through the PCA carried out during this study.…”