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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

Photocatalytic Decoloration of Methyl Orange by TiO2 in Slurry

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American Journal of Analytical Chemistry 2024年第11期15卷 347-356页

作者： M’Bra Ignace Christian konan affoué tindo sylvie Gnagne Essoh Jean Eudes Yves Yacouba Zoungranan Touré Late Arsène Ekou Lynda Ekou Tchirioua Laboratoire de Thermodynamique et de Physico-Chimie du Milieu UFR Sciences Fondamentales et Appliques Universit Nangui Abrogoua dAbidjan Abidjan Cte dIvoire Dpartement de Mathmatiques Physique Chimie Universit Peleforo Gon Coulibaly Korhogo Cte dIvoire

The problem of water depollution is gaining importance, especially as regulatory standards concerning drinking water are increasingly strict. The different industries (textile industries) generate chemically stable pollutants such as methyl orange which make their degradation difficult. It is therefore necessary to find new, more effective techniques for the treatment of these discharges. Among the different solutions proposed to deal with this problem, we find advanced oxidation processes (POAs) which are clean and promising technologies in the field of wastewater depollution. In this regard, heterogeneous photocatalysis was used in an aqueous suspension of titanium oxide (TiO2) using a ultraviolet (UV) lamp as artificial radiation. The objective of this work is to study the influence of some operating parameters such as: the catalyst mass, the initial pollutant concentration, the volume of the solution and the pH of the solution, were examined. The results obtained showed that this photocatalyst made it possible to degrade 99.85% of the initial concentration of methyl orange (10 ppm), after 240 min of irradiation with an optimal mass of 0.50 g of TiO2 for a volume of 200 mL of methyl orange solution at pH = 3.0.

关键词： Depollution Methyl Orange TiO2 Slurry

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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Abundance and Source Identification of Polycyclic Aromatic Hydrocarbons in Sediments of the Ivory Coastal Zone (Toukouzou Hozalem-Assinie)

Green and Sustainable Chemistry 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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American Journal of Analytical Chemistry 2023年第1期14卷 12-27页

作者： Laure Emma Oura Vanh Eric-Simon Zran Georges Kouadio Horo Koné affoué tindo sylvie konan Albert Trokourey Kouassi Benjamin Yao Fofana Bakary Laboratoire des Procédés Industriels de Synthèse de l’Environnement et des Energies Nouvelles (LAPISEN) de l’Institut National Polytechnique Félix Houphouë t Boigny de Yamoussoukro Yamoussoukro C&ocirc te d’Ivoire Centre Analyses et Recherche (CAR) Petroci Holding Abidjan C&ocirc te d’Ivoire Laboratoire de Constitution et Réaction de la Matière (LCRM) Université Félix Houphouet Boigny Abidjan Cote d’Ivoire Department of Science and Technology Université Alassane Ouattara de Bouaké Bouaké C&ocirc te d’Ivoire Laboratoire de Thermodynamique et de Physico Chimie du Milieu Université Nangui Abrogoua Abidjan C&ocirc te d’Ivoire Centre D’Analyse et de Recherche de la PETROCI (DCAR) Cô te d’Ivoire. Immeuble les Hevéas-14 Bd Carde Abidjan Cote d’Ivoire

Polycyclic aromatic hydrocarbons (PAHs) are strongly associated with agricultural, residential, transportation, industrial and petroleum activities. In this study, the presence of PAHs (polycyclic aromatic hydrocarbons) was investigated in sediments of the ivory coastal zone (Toukouzou Hozalem-Assinie). The main objectives of this study were to determine the abundance and to predict the source of PAHs in the sediments. Gas chromatography-mass spectrometry (GC-MS) was used to analyze sixteen priority PAHs. Total PAHs concentrations were from 1.31 to 3992.68 mg/kg in sediment with an average concentration of (307.54 ± 16.10) mg/kg. Among all PAHs, Naphthalene (Nap = 332.72 mg/kg) and Phenanthrene (Phe = 41.75 mg/kg) were found in the highest concentration, whereas Benzo (k) Fluoranthene was found in the least concentration in the range of 0 - 0.85 mg/kg (mean 0.24 mg/kg). Bassam-Modeste Lagune (BML) sampling site was the site with the highest concentration of total PAHs (all 16 PAHs) compared to the others due to their location in a highly populated estuary area that receives commercial, tourism, port, petroleum and heavy industrial activities. Diagnostic ratios were used to determine the sources of PAHs and suggested that the PAH profile in the sediments was dominated by 2 and 3 ring PAHs. The patterns of PAH compounds in sediment indicated that contamination is from mixed sources, with a strong indication of petrogenic contamination potentially from spills of fuel, oil and industrial activities.

关键词： Polycyclic Aromatic Hydrocarbons Sediment Source Abundance Ivorian Coastal

Formulation of Motor Oil from Blends of Rubber Latex Cup Bottom Oil (RLBO) and Used Frying Oil (UFO)

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Journal of Sustainable Bioenergy Systems 2024年第3期14卷 35-43页

作者： konan Edmond Kouassi Abollé Abolle Dogafolô Soro tindo sylvie konan David Boa Kouassi Benjamin Yao Laboratoire de Thermodynamique et Physico-Chimie du Milieu (LTPCM) UFR-SFA UNA Abidjan Cte dIvoire Laboratoire des Procds Industriels de synthse de lEnvironnement et des Energies nouvelles (LAPISEN) de lInstitut National Polytechnique Flix Houphout Boigny de Yamoussoukro Yamoussoukro Cte dIvoire

Most motor oils are made from mineral oils derived from petroleum, the reserves of which are limited and exhaustible. The aim of this study is to produce and characterize motor oil formulations based on mixtures of rubber latex cup bottom oil (RLCBO) and used frying oil (UFO). The results show that these formulations have a density between 0.91 and 0.92. These densities evolve linearly with the proportion of cup bottom oil and temperature. Similarly, the kinematic viscosity of the blends follows an exponential relationship with temperature. By plotting the logarithm of these kinematic viscosities against the inverse of the temperature, we were able to determine the activation energy of the various blends and deduce that the formulations behave Newtonian.

关键词： Formulation Oils Blend Motor Oils Latex Bottoms Oil

Abundance and Source Identification of Polycyclic Aromatic Hydrocarbons in Sediments of the Ivory Coastal Zone (Toukouzou Hozalem-Assinie)

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Socio-Cultural Representations and Therapeutic Itineraries of Parents of Autistic Children Followed in the INSP’s Children’s Mental Health Services

American Journal of Analytical Chemistry 2023年第1期

作者： Laure Emma Oura Vanh Eric-Simon Zran Georges Kouadio HoroKoné affoué tindo sylvie konan Albert Trokourey Kouassi Benjamin Yao Fofana Bakary

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Open Journal of Psychiatry 2023年第1期13卷 1-9页

作者： Koffi Paulin konan Brahim Samuel Traore Ettié sylvie Kouassi Yao Etienne Kouadio Kouadio Régis Aymar Yao Yessonguilana Jean-Marie Yeo-Tenena Addictology and Mental Hygiene Department National Institute of Public Health (INSP) Abidjan Ivory Coast UFR Medical Sciences of Abidjan Felix Houphou&#235 t-Boigny University Abidjan Ivory Coast Child Guidance Center National Institute of Public Health (INSP) Abidjan Ivory Coast

Pervasive developmental disorders (PDD) remain little known to populations in developing countries. In black Africa their social representations remain strongly influenced by local belief systems. The general objective of this study was to understand the perceptions and representations of Ivorian parents vis-à-vis PDD. This was a mixed (qualitative and quantitative) prospective cross-sectional study with a descriptive aim that involved a sample of 49 parents. The sampling was of the qualitative type by multiple cases with reasoned choice by saturation. Our results showed that male parents were mostly aged between 40 - 49 years (48.98%) with a higher level of education (67.34%) while mothers were mostly aged between 30 - 39 (61.22%) and a higher level (30.61%). Autistic children were negatively perceived by their parents: either as a source of psychological suffering (82.85%), or as mysterious children who sacrificed their parents (44.66%), or as “bobo” children (mute children in common Ivorian language) (16.66%) or like rude children (13.34%). The supposed origin of the disorder according to the parents was mystical-religious (60.94%);natural (25%);hereditary (6.25%). In 6.25% of cases, PDD were assumed to be of unknown or iatrogenic origin attributable to vaccination (1.56%). 75.51% of parents said that in addition to conventional medical therapies, they also used traditional therapies. The use of this therapeutic alternative would be linked to the perceptions and beliefs that feed the socio-cultural representations of our respondents.

关键词： Pervasive Developmental Disorders Socio-Cultural Representation Parents Therapeutic Itinerary

Socio-Cultural Representations and Therapeutic Itineraries of Parents of Autistic Children Followed in the INSP’s Children’s Mental Health Services

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