Publications (25)
ARTICLE
USE OF POLYSTYRENE MATERIALS IN THE CONSTRUCTION OF BUILDINGS IN THE NORTH- CENTRAL REGION OF BURKINA FASO: ECONOMIC, SOCIAL AND ENVIRONMENTAL ISSUES
Gouba Bernard, Sawadogo Boukari , Ouoba Emile
The acquisition of decent housing at lower costs is a major concern in Burkina Faso. Indeed, a large number of buildings are built in concrete and concrete blocks. This technique of building buildings with these materials is expensive and very energy-intensive, which poses an access problem for the majority of Burkinabè populations. In this re(...)
Polystyrene, Building, Social Housing
ARTICLE
Monitoring of physicochemical parameters during Cocomposting of dehydrated faecal sludge and organic household solid waste: assessment of composts maturity
Ouindpouiré Auguste Aristide Soré and Samuel Ouoba
This study proposes a method of recovery by co-composting of dehydrated faecal sludge (DFS) and solid organic household wastes (SOHW) in Ouagadougou. The city has three drying bed treatment stations which are partially functioning because after the liquid/solid separation, the bio-solids are piled up without final treatment and currently const(...)
Co-composting · Dehydrated faecal sludge · Organic household solid waste physicochemical parameters
ARTICLE
New Experimental Methods for Measuring suction and chemical potential of Aqueous Solution of Ethanol in Soil
Samuel Ouoba and Jean-Claude Bénet
In this article we develop various experimental methods for measuring the suction and the chemical potential of water and ethanol in soil. The results obtained are in good agreement between the method using the filter paper and the sorption isotherm at low water contents. The precision is less good for the high water contents between the filte(...)
Chemical potential Fragmentation activimeter New methods Soil Ethanol solution Suction
ARTICLE
Characterization of Recycled Aggregates of Concrete and Bricks in the Central Region of Burkina Faso
GOUBA Bernard , SAWADOGO Boukari
Aggregates used in the construction of civil engineering works have an impact on the properties of concrete. For several years the central region is famous because of the effects of extraction of natural aggregates on the environment. We conducted laboratory tests on several recycled aggregates of concrete and bricks to determine their mechani(...)
Recycled aggregates; strength; concrete; non-recycled aggregate
ARTICLE
Development of numerical model to describe water transfer in hygroscopic soil: use of a new method based on off-center upstream principle for convective flux
Samuel Ouoba, Alfa Omar Dissa and François Ouedraogo
This manuscript is focused on the mechanisms of water evaporation and the phenomena affecting its migration toward the groundwater. The objective is to estimate the essential parameters which govern the diffusion transfer. The phenomenological parameters used in the model are obtained experimentally and the mass transfer equations have been so(...)
numerical model, eccentric upstream, hygroscopic soil, convection, profiles
ARTICLE
Numerical Modelling and Simulation of Water Transfer in Soil with Low Water Content
S. Ouoba and J.-C. Bénet
In this paper, we present the results of numerical model and simulation of water transfers in soils with low water content. The main objective is to identify the major phenomena which allow to adequately describe water transfer in soil between the filtration of liquid phase and the capillary rise. We have shown that in the superficial layer of(...)
Hygroscopic · Numerical modeling · Pendular · Soil water content · Water transfer
ARTICLE
Traçage de la courbe granulométrique et la détermination des coefficients de Hazen par la méthode analytique
GOUBA Bernard
Sand and gravel make up the granular skeleton in concrete. They contribute to the resistance of concrete structures. They are able to support higher loads or allow more slender constructions. The aggregates can also present varieties of diameter and making it possible to carry out more resistant works. In the laboratory we carried out the siev(...)
aggregate1; particle size curve 2; Hazen coefficient 3; fineness modulus 4; analytical method; graphic method 5.
ARTICLE
Caractérisation du processus de traitement des eaux usées des unités industrielles dans la station de traitement de Kossodo mise en place par l’Office Nationale des Eaux et l’Assainissement (ONEA) au BURKINA FASO
GOUBA Bernard , SAWADOGO Boukari
Les eaux usées des stations de traitement de Kossodo dans la ville de Ouagadougou ont un impact négatif sur l’environnement et sur la population. Pendant plusieurs années la zone de Kossodo est réputée à cause de son odeur nauséabonde due aux eaux usées. Nous avons effectué une étude de terrain afin de mieux caractériser la station d’épuration(...)
Traitement ; Caractérisation ; Eaux usées ; Station d’épuration ; Bassin anaérobie.
ARTICLE
Risk of Waterborne Parasitic Infection among Vegetables Producers in the City of Ouagadougou, Burkina Faso: An Attempt to Quantify Them Using the Quantitative Microbiological
Noellie W Kpoda, Hamidatu S Darimani, Adama Oueda, Idrissa Ouédraogo, Gustave B Kabré
The use of wastewater in urban agriculture has been promoted as an alternative to water scarcity and as a means to increase soil fertilizer. However, the use of wastewater in urban agriculture raises major public health concerns, mainly due to the often high concentration of pathogenic micro-organisms. Waterborne parasites are a major health c(...)
Urban Agriculture, Polluted Water, Parasites, Health Risk, Quantitative Microbiological Risk Assessment
ARTICLE
Caractérisation d’un réseau d’évacuation optimale des eaux usées muni de capteurs électroniques: Cas de la zone industrielle de Kossodo dans la ville de Ouagadougou au Burkina Faso
Bernard Gouba, Madjoyogo Hervé Sirima , Betaboale Naon
Le dysfonctionnement du réseau d’évacuation des eaux usées constitue un facteur de pollution mettant en cause le bien-être de la population dans la ville de Ouagadougou. La stagnation des eaux usées est le lieu de prédilection des insectes pathogènes. Au cours de notre étude nous avons effectué une sortie d’étude dans la ville qui nous a permi(...)
Section ; Conduite d’évacuation ; Eaux usées ; réseau d’évacuation ; déchet solide.
ARTICLE
Role of Temperature and Pressure on The Evaporation Kinetics of trichloroethylene and Heptane in Soil
Samuel Ouoba and Jean-Claude Bénet
This article discusses the influence of temperature and pressure on evaporation of trichloroethylene and heptane. The results show that the liquid content of the compound, the temperature and the ambient pressure influence the evaporation of volatile organic compounds in the soil. It has been shown that as the liquid content of compound
incre(...)
trichloroethylene, heptane, evaporation kinetics, temperature
ARTICLE
Caractérisation physico-chimique et microbiologique des boues de vidange déshydratées et des déchets solides ménagers organiques pour une valorisation en compost agricole
Soré Ouindpouiré Auguste A. and Ouoba Samuel
Dans la ville de Ouagadougou au Burkina Faso, les stations de traitement es boues de vidange souffrent du manque d'une filière de valorisation des boues après séchage. Pour les déchets solides ménagers, les quantités collectées sont majoritairement destinées à l'enfouissement technique. Trouver une solution pour la valorisation des boues de vi(...)
Boues de vidange déshydratées, Déchets solides ménégers organiques, Compostage
ARTICLE
Experimental study of water evaporation rate, at the surface of aqueous solution, under the effect of a discontinuity of chemical potential – Effect of water activity and air pressure
J.-C. Benet, S. Ouoba, F. Ouedraogo, F. Cherblanc
The aim of this communication is to analyse the influence of water activity and total pressure on water evaporation.
The system is composed of liquid and gas phases, separated by a plane surface, contained in a cylinder whose volume is regulated by a piston. Water activity is regulated by saturated salt solutions and pressure by the piston. T(...)
Surface evaporation rate, Chemical potential, Water activity, Gas pressure
ARTICLE
Measuring the Physico-Chemical Impact of Wastewater from the Open Sewer in an Industrial Area: Case of the Kossodo Industrial Area in the City of Ouagadougou in Burkina Faso
Bernard Gouba, Madjoyogo Hervé Sirima, Betaboale Naon
Wastewater from industrial units in the Kossodo district in the city of Ouagadougou has a physicochemical impact
on the environment and the population. For several years the Kossodo area was famous for the effects of
wastewater from industrial units on the environment (a foul odor). We took samples from various points of the
open canals in(...)
measurement, physico-chemical impact, wastewater
COMMUNICATION
LE BÉTON ET LES BÉTONS A HAUTE PERFORMANCE
GOUBA Bernard
Les bétons à hautes performances présentent une durabilité améliorée et une résistance accrue. Ils sont capables de supporter des charges supérieures ou permettre des constructions plus élancées. Les Béton à Haute Performance peuvent également présenter des formes plus complexes et permettent de réaliser des ouvrages de grandes portées. Pendan(...)
Béton – Béton haute performance