Investigation of the water quality of daily used surface-sources for drinking and irrigation by the population of Segou in the center of Mali

Touré, Amadou Abdourhamane; Duan, Wenbiao; Keita, Zakaria; Dembele, Abdramane

doi:10.2166/wh.2018.085

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…Rainfall of the region ranges between 200 to 800 mm per year and the average temperature is 28˚C [9]. Agriculture, livestock and fishing are the main activities of the region [10].…”

Section: Study Areamentioning

confidence: 99%

Assessment of the Microbiological Quality of Drinking Water in Light of Water Quality in the Pelengana Commune of Segou Region

Diakite¹,

Gao²,

Touré³

2019

CWEEE

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This study focused to determine the bacteriological quality of different commonly used water sources, including boreholes, hand pumps, surface water, household containers, dug well and cement reservoirs in Pelengana commune, in Mali with special reference to the internally displaced people camps. Four hundred and eight water samples were collected from different sites and sources, from July 2016 to June 2017. Water samples were examined for total coliform, fecal coliform and fecal enterococci counts using the most probable number method. Also, samples were investigated for the presence of enteric bacteria isolated, namely Escherichia coli, Enterococcus fecalis, Bacillus, Citrobacter and Enterobacter. Results revealed that the three indicators bacteria (Total Coliform (48.7%), Fecal Coliform (100%), and Fecal enterococci (37.01%)) were found above permissible limit for drinking water. The highest number of the indicators bacteria found was 1800 TC/100ml water. Enteric bacteria isolated were Escherichia coli (25.7%), Enterococcus fecalis (21.91%), Bacillus (16.72%), Enterobacter (4.56%) and Citrobacter (3.91%). The most contaminated water source was surface water (15.28%) followed by household containers (13.65%), boreholes (8.75%), cement reservoirs (7.47%), hand pumps (5.31%) and dug wells (2.7%). These findings illustrate that contamination varied with seasons, and the highest level was observed in rainy season (30.02%) compared to the dry season (23.14%). All sources of water in the study sites were contaminated. It is suggested that the outright prevention of surface water consumption should be employed and monitoring of the quality of water resources is needed.

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“…Rainfall of the region ranges between 200 to 800 mm per year and the average temperature is 28˚C [9]. Agriculture, livestock and fishing are the main activities of the region [10].…”

Section: Study Areamentioning

confidence: 99%

Assessment of the Microbiological Quality of Drinking Water in Light of Water Quality in the Pelengana Commune of Segou Region

Diakite¹,

Gao²,

Touré³

2019

CWEEE

Self Cite

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Suspended Particles in Water and Energetically Sustainable Solutions of Their Removal—A Review

Zezulka,

Maršálek,

Maršálková

et al. 2024

Processes

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Solid particles (SP) suspended in water represent a common contamination that degrades the water quality, not only in drinking water sources. Particles differ in size, nature, and related features like surface charge. Thus, various methods can be utilized for their removal—physical approaches including settling or filtration, chemical coagulation/flocculation, biological microbial degradation, and others. This paper aims to summarize currently available methods for SP removal with special attention devoted to alternative, cost-effective, sustainable, and eco-friendly approaches with low energetic demands where the power of renewable energy sources can be utilized. Besides SP properties, the selection of the proper method (or a sequence of methods) for their separation also depends on the purpose of water treatment. Drinking water production demands technologies with immediate effect and high throughputs, like conventional filtration and coagulation/flocculation (electro- or chemical with alternative coagulant/flocculant agents) or some hybrid approaches to ensure quick and cost-effective decontamination. Such technologies usually imply heavy machinery with high electricity consumption, but current progress allows the construction of smaller facilities powered by solar or wind power plant systems. On the other hand, water decontamination in rivers or ponds can include slower processes based on phytoremediation, being long-term sustainable with minimal energy and cost investments.

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Generation of Tequila Vinasses, Characterization, Current Disposal Practices and Study Cases of Disposal Methods

Zurita

Tejeda

Montoya

et al. 2022

Water

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Tequila vinasse is a liquid waste generated during the production of tequila, an emblematic alcoholic beverage in Mexico. The objective of this study was to carry out an investigation on the tequila factories located in the state of Jalisco in order to know the location of the factories in the state, the characterization of the vinasses including factories of different sizes, the current treatment methods, and disposal practices as well as the impacts of common practices of vinasse disposal. Part of the information was collected by applying a questionnaire to the tequila factories previously contacted (and physically located). For the vinasse characterization, 24 tequila factories provided a composite sample of vinasse. To assess the impact of common vinasse disposal practices, a stream running through tequila factories, soil that has been used for vinasse discharge for 14 years, and a well located near the soil were evaluated. In two main regions (Valle and Altos Sur), 110 tequila factories distributed in 10 municipalities, were identified. Vinasse disposal and treatment problems are mainly related to micro-factories that do not treat their vinasse at all. The most common method of disposal is discharging on soils. Only in the Valle region is disposal in surface waters a common practice, as well as discharges into sewage systems. The monitored stream is totally degraded with low pH, high concentrations of organic matter, suspended solids, etc. Soil fertility has not been affected due to a method of vinasse discharge-soil rest. The texture of the soils (high content of clay and silt) has been decisive in protecting groundwater from the infiltration of vinasse. The results obtained in this study could help the authorities to develop adequate strategies for the management of vinasses (treatment and disposal), mainly in micro and small tequila factories.

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Investigation of the water quality of daily used surface-sources for drinking and irrigation by the population of Segou in the center of Mali

Cited by 3 publications

References 9 publications

Assessment of the Microbiological Quality of Drinking Water in Light of Water Quality in the Pelengana Commune of Segou Region

Assessment of the Microbiological Quality of Drinking Water in Light of Water Quality in the Pelengana Commune of Segou Region

Suspended Particles in Water and Energetically Sustainable Solutions of Their Removal—A Review

Generation of Tequila Vinasses, Characterization, Current Disposal Practices and Study Cases of Disposal Methods

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