8 research outputs found
Investigation of groundwater flow potential in Makurdi, North Central Nigeria, using surficial electrical resistivity method
Vertical electrical sounding (VES) employing Schlumberger electrode configuration was carried out in order to study the groundwater flow potential in Makurdi, north central Nigeria. This was done in thirty locations to determine the aquifer resistivity, thickness, longitudinal conductance, hydraulic conductivity and transmissivity. From the result, the averages and ranges of these parameters were determined. 2D contour maps of aquifer resistivity, aquifer thickness, longitudinal conductance, hydraulic conductivity and transmissivity were drawn. The distribution of thickness and transmissivity maps provided a means of identifying areas where aquiferous zone is prolific. The classification of the groundwater potential shows 3.3% very low, 26.7% low, 66.7% moderate and 3.3% high potentials. Knowledge of hydraulic conductivity and transmissivity is necessary for the determination of groundwater flow potential through an aquifer.Keywords: Aquifer resistivity, hydraulic conductivity, transmissivity, longitudinal conductance, vertical electrical sounding, thickness, Makurdi
Application of electrical resistivity method in estimating geohydraulic properties of a sandy hydrolithofacies: a case study of Ajali Sandstone in Ninth Mile, Enugu State, Nigeria
Investigation of groundwater potential of southern Paiko, northcentral Nigeria, using seismic refraction method
Vulnerability assessment of an aquifer in the basement complex terrain of Nigeria using âLAHBUDâ model
Application of aeromagnetic data to map subsurface structural features in Ewekoro, Southwestern Nigeria
Assessment of Red Bed Groundwater in the Jinqu Basin, Southeastern China: Its Enrichment Regularity and Emergency Exploitation Potential
From curiosity to commodity: a review of the evolution of sachet drinking water in West Africa
The private sector continues to play an important role in filling local drinking water supply gaps across the Global South. In West Africa, a perfect storm of rapid population growth, infrastructure mismanagement, and globalization of consumer markets has resulted in the advent of an entire new industry around packaged water, primarily âsachet waterâ sold in mechanically sealed plastic sleeves. Most local governments and international development agencies have historically perceived sachet water as a passing trend, but it has quickly become a primary drinking water source for the majority of households in many urban areas and continues to spread throughout the region and world. Sachet water is now an important component of regional water security, although with attendant issues related to governance, quality control, environmental pollution, and social justice. This paper reviews the seminal literature on sachet water in West Africa, with particular emphasis on Ghana and Nigeria, where most studies have focused. This review synthesizes governance issues, consumer and industry trends, and the latest on product quality in the literature from 2011 to 2016, with 2010 approximating an inflection point for the modernization of the industry. The ability of many West African nations to achieve universal access to safe drinking water may depend on their willingness to understand and incorporate the sachet water industry into an integrated drinking water platform. WIREs Water 2017, 4:e1206. doi: 10.1002/wat2.1206
This article is categorized under:
Engineering Water > Planning Water
Engineering Water > Sustainable Engineering of Water
Human Water > Water Governance
A typical 500âmL sachet of drinking water sold in Accra, Ghana