Constructed Wetlands (CWs) are currently one of the most promising techniques for wastewater treatment, having demonstrated their effectiveness. However, choice substrate particle size is critical to smooth operation process, as hydrodynamic constraints require a coarse size, whereas treatment recommends fine size. This study investigates suitability laterite and shale substrates different sizes (1 - 3, 3 5 8 mm) in CWs domestic treatment. The was carried out an experimental pilot plant...

Aims: Inadequate wastewater management combined with a lack of sanitation facilities has exacerbated problems in Sub-Saharan Africa. The aim this study is to assess and excreta villages Braffédon, Lahou-Kpanda, Groguida Likpillassié located on Grand Lahou coast South-West Côte D'Ivoire. Place Duration Study: research was conducted from June September 2021 Groguida, Likpilliassé, Lahou-Kpanda Braffedon. Methodology: Data collection consisted field observations survey. sample size the survey...

Aims: Access to adequate water and sanitation services for all is a major issue in developing countries, particularly rural mountainous areas. The aim of this study was examine access conditions the department Biankouma, Côte d'Ivoire. Place Duration Study: research conducted from April June 2023 several villages Biankouma department. Methodology: Data collection consisted household survey field observations Sub-prefectures Blapleu, Kpata Gbangbegouiné, Biankouma. In order obtain...

Bacteria are frequently studied due to their involvement in pollutants transformation processes during wastewater treatment. In this study, the treatment efficiency, bacteria densities and vertical profile were investigated pilot-scale flow constructed wetlands (VFCW) planted with different plant species under a tropical climate west Africa. Five beds local species, i.e., Andropogon gayanus, Chrysopogon zizanioides, Echinochloa pyramidalis, Pennisetum purpureum Tripsacum laxum, while one bed...

Constructed wetlands (CWs) are systems designed to maximize pollutants removal by various mechanisms, most of which associated with the presence plants. However, substances secreted plants defend themselves against external aggressions during their growth very little studied in these systems. This study aimed characterize chemical constituents Pennisetum purpureum extracts used an experimental mesocosm filled shale and laterite treating domestic wastewater. Above-ground biomass, strain...

A concrete biosand filter (BSF) was designed, and its performance evaluated on three different water used in the rural communities. The field study conducted by using tap, well pump waters, a questionnaire administered to apprehend community’s attitudes BSF utilisation. characterised analysing filtrates concentration NH4+, NO3-, NO2-, COD, Escherichia coli, andClostridium perfringens. BSF was approved 94% of population for quality, ease use quantity clean produced. The main results are...

Abstract Background Since 2014, seasonal malaria chemoprevention (SMC) with amodiaquine–sulfadoxine–pyrimethamine (AQ–SP) has been implemented on a large scale during the high transmission season in Burkina Faso. This paper reports prevalence of microscopic and submicroscopic infection at outset after first round SMC children under 5 years old Bama, Faso, as well host parasite factors involved mediating efficacy tolerability SMC. Methods Two sequential cross-sectional surveys were conducted...

The development artisanal and small-scale gold mining in recent years Côte d'Ivoire could pose a risk to soils health of local communities. This study aimed at assessing the impacts on areas northen localities (Boundiali, Korhogo Tengrela) d’Ivoire, where those activities are accentuated. Field observation physico-chemical parameters analysis (potential hydrogen (pH), cation exchange capacity (CEC), organic matter (OM)) pollutants (mercury (Hg), copper (Cu), zinc (Zn), arsenic (As) cyanide...

This study aims to assess the effective capacity of Panicum maximum accumulate cadmium (Cd), nickel (Ni) and lead (Pb). P. observed in a greenhouse was subjected 2 ppm Cd, 50 Ni, 100 Pb contaminated soil uncontaminated soil, for 120 days. Plant growth biomass produced concentration trace metals plant, bioaccumulation transfer factors, location potentially toxic elements tissues cells plant have been determined. Stem length by were higher on followed respectively those soil-contaminated Pb,...

Poor management of household solid waste has a negative impact on the environment and can be source many illnesses. In order to improving living local populations, this study aims analyze in Grand-Lahou. Data were collected through field observations, survey characterization produced households. The respondents all over 25 years age, with higher proportion women (65%). Grand-Lahou households is packaged makeshift garbage cans (garbage liners (9.5%), used buckets (30.9%), old basins (4.8%),...

The use of phytosanitary products remains uncontrolled and abusive in the practice market gardening most developing countries. However, it one potential sources environmental contamination public health problems. This study examines risks associated with town Abengourou Cote d’Ivoire. Field surveys carried out among all (30) gardener sites housed 150 farmers showed that when were spread, no safety measures observed. Approximately 80% respondents did not wear gloves or face masks. Some used...

Les marais artificiels constituent une alternative moins coûteuse pour traiter efficacement les eaux usées dans pays en développement. Cependant, la charge hydraulique appliquée peut affecter leur efficacité de traitement. Ainsi, cette étude, l’effet sur le fonctionnement d’un artificiel à drainage vertical planté avec Panicum maximum (Jacq.) traitant des domestiques a été étudié. Pour ce faire, deux charges hydrauliques d’eau usée domestique (32,14 l/j et 42,85 l/j) ont utilisées. Le du...

The valorization of crop residues could constitute an energy source (biogas) allowing to reduce the needs populations in agricultural regions, improve their living conditions and slow down deforestation as well greenhouse gas emissions. This work aims determine typology waste departments Soubré, Sassandra, Daloa Issia, number generated these departments, assess biogas potential said residues. Field observations were made identify different types waste, then, based on statistical data from...

The restoration of soils polluted by trace metals (Pb and Cd) phytoremediation is an innovative ecologically sustainable solution.The objective the study was to develop a process phytoaccumulation in with species Panicum maximum.For this purpose, 30 buckets containing soil were used.These included six (06) per dose contamination Pb Cd (3 mg/kg 9 100 300 Pb) (6) uncontaminated (control).During period 90 days experimentation, concentrations plant biomass measured.Also, bioaccumulation (BF)...

The selection of adequate plant species is a prerequisite for cleaning-up trace metal contaminated-soils by phytoaccumulation which cost-effective and environmentally-friendly technology. potential Panicum maximum, Eleusine indica Cynodon dactylon to uptake metals from the soil Akouedo landfill was investigated. concentrations in were also considered. Moreover, accumulation Zn, Ni, Cu, Pb Cd assessed based on bioconcentration factor, translocation factor. results showed high concentration...

The objective of this study was to assess the contribution spatial organization cropping systems and physicochemical properties surface layers agricultural zones soils in tropical hydrosystems availability nitrogen pesticides during wet season, such as Béré watershed (BW) C?te d'Ivoire. For purpose, after mapping distribution BW based on likelihood classification methodology satellite images area, 27 samples from 0 - 20 cm horizon soil areas were taken season year 2016. Kjeldahl method has...

Abstract Bacteria are frequently studied in constructed wetlands (CWs) due to their effective involvement pollutants purification processes. In this study, aerobic, anaerobic and total bacteria densities vertical distribution profile within pilot-scale flow CWs planted with different plant species were investigated. Five beds monoculture Andropogon gayanus, Chrysopogon zizanioides, Echinochloa pyramidalis, Pennisetum purpureum Tripsacum laxum , one unplanted bed was used as control. At the...

Constructed Wetlands (CWs) are an adequate wastewater treatment system with possibility to generate income, in particular by the use of plants economic interest. However, very few studies deal bacteriological quality after treatment. Thermotolerant coliforms and Sulfite-reducing bacteria were investigated on above-ground biomass a species forage plant (Pennisetum purpureum) as well their removal experimental pilot consisting four beds, for three months. Two beds planted two unplanted used...

The management of crop waste remains a major concern in countries with high agricultural potential such as Côte d'Ivoire, due to the pollution environmental components resulting from its poor management. This work aims set up exchange provide real information on residues produced departments Soubré, Sassandra, Daloa and Issia operators wishing recover them. modeling system was carried out following approach MERISE method which is characterized by three levels: Conceptual, Logical Physical....