Publications (99)
ARTICLE
Assessment of shallow groundwater in Lake Nyos catchment (Cameroon, CentralAfrica) : implications for hydrogeoche mical controls and uses
Brice T. Kamtchueng, Wilson Y. Fantong, Akira Ueda, Edwige R. Tiodjio, Katsuro Anazawa, Mengnjo J. Wirmvem, Joseph O. Mvondo, Luc S. Nkamdjou, Minoru Kusakabe, Takeshi Ohba, Gregory Tanyileke, Joseph V. Hell
Cette étude a porté sur l’évaluation des eaux souterraines peu profondes du bassin versant du lac Nyos
et des implications pour le contrôle hydrogéochimique et l’usage par les rescapés de l’explosion du lac en
1986. Ils avaient pour objectif principal la caractérisation chimique des eaux souterraines en vue
d’identifier les processus hyd(...)
Lake Nyos catchment, Groundwater quality, Water-rock interaction
ARTICLE
Greywater Characteristics In Rural Areas of the Sahelian Region for Reuse Purposes: The Case of Burkina Faso
MAIGA Ynoussa, MOYENGA David, USHIJIMA Ken , SOU Mariam, MAIGA Amadou Hama
The characteristics of greywater generated in two rural areas (“Barkoundba” and “Kologoudiessé”) located in the Sahelian region in Burkina Faso were assessed through observations in selected concessions, sample collection and laboratory analyses. The study aimed at characterizing the qualitative and quantitative characteristics of greywater in(...)
Greywater, Gardening, rural area, sahelian region, agricultural reuse
ARTICLE
Biodegradation of Cyanide Complex Compounds in Aqueous Media by Pseudomonas resinovorans
BOUARI Abdoul-Raimi, BEGUM Shamim Ara, MAIGA Ynoussa, EGEIBOR O. Nosa
Biodegradation of some complex cyanide compounds, including sodium hexacyanoferrate (II) trihydrate [Na4Fe(CN)6·3H2O], potassium hexacyanoferrate (II) decahydrate [K4Fe(CN)6·10H2O], and potassium cyano-argentate [KAg(CN)2] by free cells of Pseudomonas resinovorans strain, was investigated in aqueous suspension as a function of pH, cyanide conc(...)
biodegradation, ferro cyanide, potassium cyano argenate
ARTICLE
Characterization of Briquettes Coming From Compaction of Paper and Cardbord Waste at Low and Medium Pressures.
Ibrahim H. Gado, Salifou K. Ouiminga, Tizane Daho, Arsène H. Yonli, Moussa Sougoti, Jean Koulidiati .
This study concerns the experimental characterization and compaction of paper/cardboard coming from waste of the city of Ouagadougou. The characterization results show that the category of waste of paper and cardboard encountered in Ouagadougou contains 39 % corrugated cardboard, 28 % of office paper, 18 % of non-corrugated cardboard, 7 % of n(...)
Mots clés non renseignés
ARTICLE
Soil-Water Characteristic Curve Modeling at Low Water Content: Empirical and Semi-Empirical Approaches
Marcel Bawindsom Kebré, François Ouédraogo, Naon Betaboalé, Francois Zougmoré, Fabien Cherblanc
In this paper, we evaluate the performance of the most widely used semi-empirical models (van Genuchten (1980), Fayer and Simmons (1995) and Fredlund and Xing (1994)) and, an empirical model, the Modified Kovacs (MK) model for the determination of soil-water characteristic curve at the low water contents of two horizons of a soil from Burkina(...)
soil, water, arid, modelling, empirical
ARTICLE
Characterization, at Partial Loads, of the Combustion and Emissions of a Dual-Fuel Engine Burning Diesel and a Lean Gas Surrogate
Ali Diané , Gounkaou Woro Yomi , Sidiki Zongo , Tizane Daho , and Hervé Jeanmart
For decentralized power generation in West Africa, gas from a small biomass gasification unit can be used as the main fuel in a dual-fuel engine with diesel as the pilot fuel. To study the combustion in this type of engine (Lister Petter), experiments were conducted with a surrogate gas composed of liquefied petroleum gas and nitrogen (LPGN2),(...)
: dual fuel; diesel engine; LPG; syngas; combustion
COMMUNICATION
Flow at Low Water Contents: A Simple Approach for Inverse Estimation of van Genuchten-Mualem Soil Hydraulic Parameters.
Marcel Bawindsom Kebré, Fabien Cherblanc, François Ouédraogo, JeanClaude Bénet, François Zougmoré.
The unsaturated soil hydraulic properties (the soil water characteristic and relative permeability curves)
are key hydrodynamic parameters in the fields of soil science and civil engineering. Because of the strong
dependency of these properties on water content, their determination is subject to considerable
experimental and numerical probl(...)
Mots clés non renseignés
- 2013
- In : J. Simunek, M. Th. van Genuchten & R. Kodesova (Department of Soil Science and Geology, Czech University of Life Sciences, Prague, 21-22 march 2013). Proceedings of the 4th International Conference "HYDRUS Software Applications to Subsurface Flow and Contaminant Transport Problems, Prague, Czech Republic, ISBN: 97880-213-2380-3
ARTICLE
Effet du zaï amélioré sur la productivité du sorgho en zone sahélienne
Salifou Traoré
La présente étude a pour objectif de montrer qu'en combinant la gestion de l'eau et de la matière organique avec la technique de zaï de restauration des sols, on peut assurer une meilleure production des cultures sur les sols dégradés. Dans ce cadre, un dispositif expérimental en blocs de Fischer randomisés a été utilisé pour tester la capacit(...)
Mots clés non renseignés
ARTICLE
Air quality study in urban centers: case study of Ouagadougou, Burkina Faso
Bernard Nana, Oumar Sanogo, Paul W. Savadogo, Tizane Daho, Médard Bouda, and Jean Koulidiati.
In this work, a study on air quality in the city of Ouagadougou (Burkina Faso) was carried out. The concentration levels of NO2, SO2, BTEX and PM10 in the city have been quantified. The results show that NO2 concentrations (range from 22 to 27 μg m-3 on average) in the city remain below the limit set by the WHO standard, except for downtown wh(...)
Air quality pollutants dust concentration and passive diffusion