Adjoumani Rodrigue Kouakou

In the context of the energy transition, Côte d'Ivoire aims to increase the share of renewable energies in its energy mix, particularly by utilizing biogas. However, the presence of hydrogen sulfide (H₂S) in biogas poses technical and environmental challenges, necessitating its removal. This study explores the use of activated carbon derived from c...

Effective waste management is crucial in addressing global environmental challenges. This study focuses on optimizing biogas production through anaerobic digestion of poultry manure, which is a significant agricultural waste in Côte d’Ivoire. The aim is to identify the optimal manure-to-water ratio to maximize biogas output using a FONSTI-CRDI dige...

In the context of reducing greenhouse gas emissions, this study evaluates copper corrosion in contact with biogas before and after purification using different carbons (biochar and activated carbon). Biogas, a renewable energy source, contains impurities such as hydrogen sulfide (H₂S), which accelerate the corrosion of metals, particularly copper....

The study of aluminium corrosion in contact with biogas before and after purification on different types of carbon aims to understand the impact of impurities present in biogas, in particular hydrogen sulphide (H₂S), on aluminium degradation. The study highlights the importance of biogas purification in minimising aluminium corrosion. Depending on...

The structure from which this study was carried out is a food processing company specializing in the transformation of crude palm oil into table oil. In order to comply with environmental standards when discharging the refinery's wastewater, it has its own wastewater treatment unit. The aim of this study is to contribute to environmental protection...

The objective of this study is to investigate the potential reduction in corrosion of aluminum and copper metals when exposed to biogas purified by activated carbon derived from cashew branches. Both aluminum and copper metals were subjected to raw and purified biogas, and their corrosion rates were analyzed using the gravimetric method. The result...

The world’s growing demand for energy and our concern to preserve the environment have prompted research into alternative sources of energy. Renewable energy from biomass is one such opportunity. The aim of this study is to model the production of biogas from the anaerobic digestion of plantain and yam peelings and cattle dung. A characterisation o...

The objective of this work is to study the effect of synergy between halide ions (Cl-, Br- and I-) and piroxicam which is a drug molecule with anti-inflammatory properties proposed as a corrosion inhibitor copper in nitric acid medium using the gravimetric method. The experimental results show that the inhibitory efficiency increases considerably w...

The objective of this work is to assess the inhibitory efficacy of the piroxicam molecule on copper corrosion in a 1M nitric acid medium using the mass loss technique (gravimetry). The inhibition efficiency, represented as IE (%), increases with higher concentrations and temperatures. Various adsorption isotherm models (Langmuir, El-Awady, Freundli...

The recovery of energy potential through anaerobic digestion is a widely used method for treating biodegradable waste. However, challenges related to operational issues, waste characterization, and process instability hinder its widespread application and result in low methane yields. This review aims to organize and analyze the static and dynamic...

This study investigated the removal and recovery of ammonium ( NH4+ ) and phosphate ( PO43− ) from anaerobically digested slaughterhouse wastewater as struvite (MgNH4PO4; 6H2O). Nutrients removal experiments were conducted by the addition of magnesium sulfate MgSO4 as a Mg2+ source to the wastewater. The effects of Mg2+: PO43− ; Mg2+: NH4+ ; Mg2+:...

In this study, the simultaneous influence of different factors such as biogas flow rate, water content and iron oxide on H2S adsorption from biogas with activated carbon (AC) developed from Musa Paradisiaca (MP) peels was demonstrated using full factorial design method. AC was activated at 500°C for 3 hours after basic impregnation with potassium h...

In this research, the characteristics of Musa paradisiaca (MP) iron-functionalysed activated carbon (AC) after adsorption of H2S from biogas were demonstrated. The AC was chemically impregnated with potassium hydroxide (KOH) and then carbonised at a temperature of 500 °C for 3 h for activation. The activated carbon was then functionalized with iron...

Tenoxicam was examined as a copper corrosion inhibitor in 1M nitric acid solution using the mass loss technique and quantum chemical studies, based on density functional theory (DFT) at the B3LYP level with the base B3LYP/6-31G(d). The inhibitory efficiency of the molecule increases with increasing concentration and temperature. The adsorption of t...

This research is a case study for the search for an alternative energy to natural gas for heating the chicks of the Brin Foundation located in Yaokokro (Ivory Coast). Specifically, this study aims to reduce carbon monoxide in biogas using biochar and activated carbons prepared from plantain peels. The challenge is to use the purified biogas as a...

A comparative study between anaerobic settling and anaerobic digestion was evaluated during the treatment of slaughterhouse wastewater. Anaerobic settling and anaerobic digestion were carried out using reactor capacities of 220 L and 5 L respectively under mesophilic temperature conditions. The results show that anaerobic digestion led to a stable...

In this study, the characteristics of Musa Paradisiaca (MP) iron-funtionalysed activated carbon (AC) after adsorption of H 2 S from biogas were demonstrated. The AC was chemically impregnated with potassium hydroxide (KOH) and then carbonised at a temperature of 500°C for 3 hours for activation. The activated carbon was then functionalized with iro...

This study highlighted the influence of water content on the evolution of adsorption capacity of Musa Paradisiaca (MP) biochar in the context of hydrogen sulfide (H2S) purification from biogas. The MP biochar was prepared by pyrolysis at 600 °C for 1 h, which led to a mass yield of 29.59% w/w. The morphology and surface functions of the biochar wer...

The main purpose of this work was to assess the influence of pH variation in biogas production and to study the effect of certain substrates (other than chemical products) on stabilizing production. Two substrates were used in production: banana peels (BP) and rumen scraps (RS). Five different mixing ratios were studied at a mesophilic temperature...

Background Copper is a metal that is widely used in many fields such as industry and construction, etc. These different industrial sectors use acid solutions such as nitric acid and hydrochloric acid, etc. The use of acid solutions in the industrial environment causes degradation of materials. In recent decades, the use of corrosion inhibitors has...

Biogas is one of the most attractive renewable resources because of its ability to convert waste into energy. Biogas is produced during an anaerobic digestion process from various organic waste resources. It is composed of mainly CH 4 , CO 2 , and some trace gases such as hydrogen sulphide (H 2 S) which is a very toxic, deadly and corrosive gas. Th...

H3PO4 activated corncob carbon was used for removal of methyl orange. Characterization of the prepared carbon showed that it has many pores with a specific surface area equal to 714 m2 g-1. During this study, the concentration of methyl orange was monitored using a UV-visible spectrophotometer. The kinetic study of the adsorption of methyl orange o...

The food wastes of the Nangui Abrogoua University are rich in organic matter that can promote the production of biogas through anaerobic digestion. These wastes are favorable for the anaerobic digestion process. This study aims at estimating the energy potential of the food wastes of the University Nangui Abrogoua by the production of biogas follow...

The Tongon mine, the largest gold mine in Côte 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 world’s waste deposit has become more important due to the growth of the world economy and demography. Biomethanation is method of choice for the treatment of fermentable fractions of municipal waste. However, low methane yield due to operational issues and process instability prevent this technology from being widely applied. It shows that bio...

The performance of a two-stage process combining anaerobic digestion (AD) and electrocoagulation (EC) was studied for the treatment of slaughterhouse wastewater (SWW). Anaerobic digestion was used as primary treatment, whereas electrocoagulation process was used as secondary treatment. After anaerobic digestion, the optimal current density and the...

The present study aims to assess the spatial distribution of heavy metals in sediment of the ivorian coastal zone using X-ray fluorescence spectroscopy (XRF). The total average concentrations of 13 heavy metals in four seasons and six campaigns on a set of 72 samples have been obtained. Those samples were collected from 12 sites located in the Touk...

This study showed that the oxidation of rhodamine B by the Fenton process is a very fast method because the reaction takes place within the first 20 minutes. The mixture of Fe ²⁺ and H 2 O 2 produces hydroxide radicals responsible for the degradation of rhodamine B. The study of pH influence on the rhodamine B oxidation reveals that for maximum oxi...

Atenolol was examined as a copper corrosion inhibitor in 1M nitric acid solution using the mass loss technique and quantum chemical studies, based on density functional theory (DFT) at the B3LYP level with the base 6-311G (d,p). The inhibitory efficiency of the molecule increases with increasing concentration and temperature. The adsorption of the...

Lead (Pb) is one of the most frequent and toxic contaminant in the environment. It can be bioaccumulated by marine organisms through contaminated sediments as well as their food chains. The current study aimed at investigating Pb occurrence in the sediments and gastropod P. haemastostoma from Vridi Canal. Sediment samples were taken using a Van Vee...

The concentrations of cadmium, copper, lead and zinc in sediment samples from the Vridi Canal (Harbour area of economic capital of Cote d’Ivoire) were determined to evaluate the level of contamination. All metal concentrations in sediment samples, except Cu, were greater than the concentration of Upper Continental Crust (UCC). Sediment pollution as...