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Estimation of Methane Emission from Kossihouen Sanitary Landfill and Its Electricity Generation Potential (Côte d’Ivoire)

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Journal of Power and Energy Engineering 2018年第7期6卷 22-31页

作者： kouakou adjoumani rodrigue Kra Essi Kouadio Marc Cyril Trokourey Albert Laboratoire de Chimie Physique Université Félix Houphouet-Boigny Abidjan Cote d’Ivoire Laboratoire de Mécanique et des Sciences des Matériaux Institut National Polytechnique Felix Houphouet Boigny (INPHB) Yamous-soukro Cote d’Ivoire

In order to solve the problem of the management of municipal solid waste in Abidjan (Cote d’Ivoire), a sanitary landfill has been designed in Kossihouen. Despite the adverse greenhouse effects of the methane, this gas has a potential of electrical energy. The estimation of methane emissions from the waste can be an economic and useful way for more accurate control and management of waste disposal in Kossihouen. Therefore, conducting this study is essential. Methane emissions were estimated based on the methane generation constant K and the methane generation potential L0 using LandGEM 3.02. The results show that the quantity of methane emissions was 7.97E+07 m3/year. Based on this result, the methane content can generate 10% of total electricity consumed in Abidjan in 2026. This paper could serve as a source of scientific information for decision making on environmental sustainability in waste-to-energy projects in Cote d’Ivoire.

关键词： Methane LandGEM Kossihouen Landfill Gas

Biochemical Methane Potential of Food Wastes from Akouedo Landfill, Côte d’Ivoire

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Green and Sustainable Chemistry 2018年第3期8卷 288-293页

作者： Kouadio Marc Cyril kouakou adjoumani rodrigue Kra Essi Trokourey Albert Akichi Agboue Laboratoire de Chimie Physique Université Félix Houphou&euml t Boigny Abidjan C&ocirc te d’Ivoire Laboratoire de mécanique et des sciences des matériaux Institut National Polytechniques Felix Houphou&euml t Boigny (INPHB) Yamoussoukro C&ocirc te d’Ivoire

The determination of biochemical methane potential (BMP) is very important for the valorization of food wastes. This study is focused on the evaluation of the theoretical methane production from chemical oxygen demand (COD) of some food wastes, coming out Akouedo landfill. Almost all of the considered samples exhibited methane theoretical yields equal to about 402.5 - 507.8 mLCH4/gVS. These results indicate the suitability of all the studied food wastes from Akouedo landfill to be converted into energy.

关键词： Biochemical Methane Potential Food Wastes Akouedo Landfill Chemical Oxygen Demand

Dimensioning of an Anaerobic Digester for the Treatment of Chicken Manure and for the Production of Biogas: The Case Study of a Chicken Farm in Yaokokoroko (Côte d’Ivoire)

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Green and Sustainable Chemistry 2022年第4期12卷 91-103页

作者： kouakou adjoumani rodrigue Ehouman Ahissan Donatien Konan Affoué Tindo Sylvie Teki Adjoba Marie-Emmanuelle Kouadio Marc Cyril Adou kouakou Eric Konan Gbangbo Remis Laboratoire de Thermodynamique et de Physico-Chimie du Milieu (LTPCM) UFR Sciences Fondamentales Appliquées Université Nangui Abrogoua Abidjan C&#244 te d’Ivoire Département de Formation et de Recherche des Sciences de la Terre et des Ressources Minières Ressources en Eaux et Risques Hydrologiques Institut National Polytechnique Felix Houphou&#235 t-Boigny Yamoussoukro C&#244 te d’Ivoire Institut de Recherche sur les Energies Nouvelles Université Nangui Abrogoua Abidjan C&#244 te d’Ivoire Laboratoire des Procédés Industriels de Synthèse de l’Environnement et des énergies Nouvelles (LAPISEN) Institut National Polytechnique Houphou&#235 t-Boigny Yamoussoukro C&#244 te d’Ivoire

This study allowed us to highlight the level of pollution of a BAYA River water near several poultry farms and the sizing of an anaerobic digester that will be able to treat chicken manure from a poultry farm (BRIN FOUNDATION). To evaluate this pollution, the parameters such as ammonium (NH4+), Phosphate (PO43-), Biochemical Oxygen Demand (DBO5) and Nitrate (NO3-) were determined. For sampling point P1, the concentrations in mg/L of these parameters are (25.00 ± 4.25), (0.40 ± 0.20), (98.00 ± 6.35) and (96.00 ± 5.35), respectively. On the other hand, for sampling point P2, the concentrations in mg/L of these parameters are respectively (33.00 ± 9.05), (0.70 ± 0.12), (123 ± 7.13) and (93 ± 7.10). These values indicate a strong organic pollution of the BAYA River. The determination of the different concentrations of the organic pollution parameters allowed us to evaluate the degradation and the quality of the water of the BAYA River water, by the poultry activity. However, considering the physicochemical properties of the waste (chicken manure), which is the main source of organic pollution, we have considered an energy recovery through the production of biogas. This requires the design, sizing, and implementation of an anaerobic digester in a poultry farm. Therefore, the project would require the construction of an adapted masonry type anaerobic digester with a capacity of 10 m3.

关键词： Biogas Organic Pollution Surface Water Biodigester Chicken Manure Anaerobic Digestion

Characterization of Aquifers in Crystalline and Crystallophyll Basement Zones Using the Electrical Resistivity Method (Trails and Electrical Soundings) in the Gagnoa Region, (Central-Western Côte d’Ivoire)

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International Journal of Geosciences 2024年第6期15卷 511-523页

作者： Oscar Zahibo Onétié Assoué kouakou Sylvestre Kouadio Kotchi rodrigue Orou Maxime Assa Abe Department of Geosciences Peleforo Gon Coulibaly University Korhogo Cte dIvoire Department of Agriculture and New Technologies University of San Pedro San Pedro Cte dIvoire

Introduction: Located in the central-western part of Côte d’Ivoire, the subsoil of the Gagnoa region is made up of sedimentary volcano formations and granitoids with developed fracturing. This complex Precambrian basement contains most of the region’s water resources. This is at the origin of the high failure rate during the various hydrogeological prospecting campaigns. Methodology: The database consists of resistivities from 42 holes and 51 trails drilled as part of the implementation of high-throughput drilling in the study area. The objective of this study is to deepen the knowledge of the fissured basement by interpreting profile curves and electrical soundings. It will be a question of classifying the different types of anomalies obtained on the profiles and their shapes. The orientation of the lineaments observed on the profiles was determined. Results: The interpretation of the geophysical data revealed various anomalies, the main ones being of the CC (Conductor Compartment) and CEDP (Contact between two bearings) types. These types of anomalies are mainly expressed in various forms: the “V”, “W” and “U” shapes. From these anomalies and the appearance of the electrical profiles, lineaments and their orientations were identified with N90-100, N130-140, N170-180 as major orientations. Conclusion: These results could contribute to a better understanding of the fractured environment of the Gagnoa region.

关键词： Basement Electrical Profiles Sounding Curves Resistivities

Dimensioning of an Anaerobic Digester for the Treatment of Chicken Manure and for the Production of Biogas: The Case Study of a Chicken Farm in Yaokokoroko (Côte d’Ivoire)

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Assessment of Soil Contamination and Human Health Risk around an Industrial Gold Mine in Côte d’Ivoire: The Case of Arsenic

Green and Sustainable Chemistry（绿色与可持续化学） 2022年第4期

作者： kouakou adjoumani rodrigue ehouman ahissan donatien konan affoué tindo sylvie teki adjoba marie-emmanuelle kouadio marc cyril adou kouakou eric konan gbangbo remis laboratoire de thermodynamique et de physico-chimie du milieu (ltpcm) ufr sciences fondamentales appliquées université nangui abrogoua abidjan côted’ivoire

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Open Journal of Soil Science 2023年第7期13卷 329-339页

作者： Kagbagnan Kone adjoumani rodrigue kouakou Département de Géographie UFR Sciences Sociales Université Péléforo Gon Coulibaly Korhogo C&#244te d’Ivoire Laboratoire de Thermodynamique et de Physico-chimie du Milieu UFR Sciences Fondamentales et Appliquées Université Nangui Abrogoua Abidjan C&#244te d’Ivoire

The Tongon mine generates millions of tons of waste rock and tailings, which are stored in landfills in the vicinity of the mine. These tailings contain arsenic. The risk of soil contamination in this area is evident. This study assesses the arsenic contamination of soils around the mine and the health risks to the local population. Soil samples were taken from plastic bags and other materials used as working tools. Arsenic concentrations were determined by inductively coupled plasma mass spectroscopy, after the soil samples had been concentrated and digested. Metal contamination indices were used to assess the degree of soil contamination. The results obtained indicate that soils in the industrial zone of the Tongon gold mine have very high average concentrations, well above the world average for uncontaminated soils of 6 mg/kg arsenic. Geoaccumulation index values range from 1.28 to 3.40. These values highlight severe arsenic soil contamination. The human health risk assessment revealed that exposure risks are well above the critical limit of 1 and are, in descending order, children > adult women > adult men. These results indicate an ecological risk, requiring environmental monitoring, underpinned by the development of an effective remediation strategy to reduce local pollution and contamination.

关键词： Industrial Mine Tongon Pollution Arsenic Soil

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Human Health Risks from Exposure to Heavy Metals of Suspended Particulate Matter around the Tongon Gold Mine, Côte d’Ivoire

International Journal of Geosciences（地球科学国际期刊） 2024年第6期 511页

作者： Oscar Zahibo Onétié Assoué kouakou Sylvestre Kouadio Kotchi rodrigue Orou Maxime Assa Abe

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Journal of Agricultural Chemistry and Environment 2023年第2期12卷 171-187页

作者： Kagbagnan Kone adjoumani rodrigue kouakou Julien Bahino Horo Kone kouakou Eric Adou Ehouman Ahissan Donatien Kopoin Adouby Département de Géographie UFR Sciences Sociales Université Péléforo Gon Coulibaly Korhogo C&ocircte d’Ivoire Laboratoire des Procédés Industriels de Synthèse de L’environnement et des Energies Nouvelles Institut National Polytechniques Félix Houphou&eumlt Boigny Yamoussoukro C&ocircte d’Ivoire Laboratoire de Thermodynamique et Physico-chimie du Milieu UFR Sciences Fondamentales et Appliquées Université Nangui Abrogoua Abidjan C&ocircte d’Ivoire Laboratoire des Sciences de la Matière de l’Environnement et de l’Energie Solaire LASMES UFR SSMT Université Félix Houphou&eumlt-Boigny Abidjan C&ocircte d’Ivoire Laboratoire de Physique chimie UFR médecine/Département des Sciences et Techniques Université Alassane Ouattara Bouaké C&ocircte d’Ivoire

The Tongon mine, the largest gold mine in C?te d’Ivoire, has been in operation since April 2010. However, to our knowledge to date, no study has been conducted on metallic contamination in suspended particulate matter (PM10 and PM2.5) where there is a lack of information on the carcinogenic and non-carcinogenic risk to human health associated with the exposure of populations in the Tongon area to these pollutants. The general objective of this study is to evaluate the level of contamination of PM10;PM2.5 by heavy metals and their impact on the health of populations exposed to these pollutants in the Tongon gold mine area. The sampling and measurement of suspended particulate matter (PM10 and PM2.5) were done using a MiniVol TAS passive air sampler. Heavy metal concentrations were determined by inductively coupled plasma mass spectroscopy (Nex ION 2000 ICP-MS, USA). The results indicate that the average concentrations of suspended particles (PM2.5 and PM10) obtained are all above the recommended exposure limits. In addition, among the heavy metals contained in the suspended particles, the concentrations of arsenic and nickel are high and all above the standard limit values. The assessment of the health risks related to the inhalation of PM10 particles reveals that their inhalation over a long period could cause a carcinogenic risk.

关键词： Particulate Matters (PM10 and PM2.5) West Africa Tongon Heavy Metals Inhalation Carcinogenic Risk Metallic Contamination

Study of the Physico-Chemical Characteristics of Methacompost from a Poultry Company in Ivory Coast: Test for Growing Big Sun Chilli

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Journal of Agricultural Chemistry and Environment 2023年第4期12卷 335-350页

作者： Ahissan Donatien Ehouman adjoumani rodrigue kouakou Gbangbo Remis Konan Kadjo Benjamin Abi Ahou Adeline Estelle N’Dri Benjamin Yao Laboratoire de Thermodynamique et Physico-Chimie du Milieu Université Nangui Abrogoua Abidjan C&ocircte d’Ivoire école Doctorale Polytechnique Institut National Polytechnique Félix Houphou&eumlt-Boigny Yamoussoukro C&ocircte d’Ivoire Centre d’Excellence Africain Pour la Valorisation des Déchets en Produits à Haute Valeur Ajoutée (CEA-VALOPRO) Institut National Polytechnique Félix Houphou&eumlt-Boigny (INP-HB) Yamoussoukro C&ocircte d’Ivoire Ecole Supérieur Saint Chalmel de Yopougon-Abidjan Grande Ecole Privé Abidjan C&ocircte d’Ivoire

The objective of this work was to determine the suitability of poultry methacompost from the 2nd methanizer of the BRIN FOUNDATION in Yaokokoroko (Bondoukou, Côte d’Ivoire), to be used in the improvement of soil fertility. The methacompost studied has a C/N ratio = 17.26, which could characterize a stable methacompost with high amending power. It also contains mineral elements Nitrogen (N) = 0.68% DM;Phosphorus (P) = 0.084% DM;Potassium (K) = 0.67% DM;Calcium (Ca) = 0.65% DM;Magnesium (Mg) = 0.15% DM. red in the standard relating to the organic amendments (NFU 44-051). The methacompost has fertilizing and amending properties and could not present any risk for vegetation and soils.

关键词： Poultry Methacompost Methanization Digestate Trace Metal Elements (TME) Organic Amendment Poultry Farm