Review of hospital effluents: special emphasis on characterization, impact, and treatment of pollutants and antibiotic resistance.

Health care institutions generate large volumes of liquid effluents from specific activities related to healthcare, analysis, and research. Their direct discharge into the environment has various negative effects on aquatic environments and human health, due to their high organic matter charges and the presence of various emerging contaminants such as disinfectants, drugs, bacteria, viruses, and parasites. Moreover, hospital effluents, by carrying antibiotics, contribute to the development of antibiotic-resistant microorganisms in the environment.

Assessment of medical and pharmaceutical waste flows during the coronavirus pandemic in the Rabat-Sale-Kenitra region, Morocco.

The COVID-19 pandemic has created unprecedented difficulties for health care institutions, which are required to manage not only the flow of patients with COVID-19, but also the management of medical and pharmaceutical waste (MPW). At the level of Morocco, the waste produced by hospitals has risen sharply in the regions most affected by the virus, such as the Rabat-Sale-Kenitra region (15.05% of recorded cases).

Pretreatment of industrial wastewater by natural flotation: application to pollution reduction from vegetable oil refinery wastewaters.

The objective of this study is to evaluate the effectiveness of the natural flotation process in reducing pollution with reasonable investment and operating costs of an industrial effluent of refining vegetable oils. Flotation tests were carried out in separating funnels and in drums of 30 l. The results obtained have shown that the volume of sludge produced during flotation is related to the pollutant load of the wastewater studied (process wastewater and acidic wastewater).

Removal of Pollution by Intensive Aeration Technology for Landfill Leachate Treatment.

Background: Landfill leachate is a source of environmental pollution and a major concern for human health because it contains high concentrations of organic and inorganic contaminants.

Objectives: The objective of the present study is to validate the efficiency of the forced aeration treatment technique, which consists of intensively injecting a continuous oxygen flow of 16.75 kg/m/h for 30 days using a bubble air diffuser in a relatively small volume of 1 m.