Bøger af Barthélemy Bawar

Este estudo sobre a qualidade da água bruta na bacia do Comoé vem no seguimento dos estudos efectuados em 2015 sobre a bacia do Nakanbé e em 20172019 sobre a bacia do Mouhoun. A bacia nacional do Comoé no Burkina Faso cobre uma superfície de 17 620 km2, ou seja, 6,5% do território nacional. Atravessa três regiões administrativas e cinco províncias: principalmente a região das Cascatas (86,2% da bacia), com a maior parte das províncias de Comoé e Léraba, e em segundo lugar a região dos Hauts Bassins (7,2% da bacia), com pequenas partes das províncias de Houet e Kénédougou, e a região do Sudoeste (6,6% da bacia), com uma pequena parte da província de Poni. A presença de populações maioritariamente rurais que vivem da agricultura e da pecuária, com muitas indústrias de transformação, faz com que a pressão humana sobre os recursos naturais, nomeadamente os recursos hídricos, seja elevada. É importante examinar a qualidade destes recursos, a fim de assegurar todas as utilizações dos recursos hídricos e participar na implementação da Gestão Integrada dos Recursos Hídricos.

The vast majority of wastewater is discharged directly into the environment without adequate treatment, with adverse effects on human health, economic productivity, the quality of environmental freshwater resources and ecosystems. The main objective of the study was to assess the impact of industrial wastewater on water quality in the Centre, Plateau Central, Centre-Ouest and Hauts-Bassins regions. Three types of water were selected: surface water and borehole water located near industrial zones, and wastewater (from wastewater treatment plants and industrial units). The results of these water analyses showed that the receiving waters (rivers and boreholes) are contaminated to varying degrees by the various discharges of wastewater from industrial units.This study is the fruit of lengthy work by the General Directorate of Water Resources.

This study of raw water quality in the Comoé basin follows on from those carried out in 2015 on the Nakanbé basin and 20172019 on the Mouhoun basin. The Comoé national basin in Burkina Faso covers an area of 17,620 km2 or 6.5% of the national territory. It straddles three administrative regions and five provinces: primarily the Cascades region (86.2% of the basin), with most of the Comoé and Léraba provinces; secondarily, the Hauts Bassins region (7.2% of the basin), with small portions of the Houet and Kénédougou provinces; and the Sud-Ouest region (6.6% of the basin), with a small portion of the Poni province. The presence of predominantly rural populations living from agriculture and livestock farming, with many processing industries, means that human pressure on natural resources, particularly water resources, is high. Examining the quality of these resources is important in order to ensure all uses of water resources and participate in the implementation of Integrated Water Resource Management.