The acceleration of the energy transition away from traditional systems depends on inclusion H2 in plans. Using biomass to produce hydrogen holds significant promise field renewable energy. This article explores history as a sustainable source and highlights important role Various conversion technologies, including thermochemical, biological, electrochemical, hybrid processes, are discussed compared other sources. Given into mix, comparisons made between methods biomass-to-hydrogen terms...

Global warming and climate variability are emerging as the foremost environmental problems in 21st century, especially developing countries. Full knowledge of key change variables is crucial managing water resources river basins. This study examines air temperature rainfall five states South-Eastern region Nigeria, using trend analysis approach. For this purpose, temporal trends annual were detected non-parametric Mann-Kendall test at 5% significance level. The time series data for period...

Novel application and comparison of intelligent models such as adaptive neuro-fuzzy inference systems (ANFIS), artificial neural network (ANN), response surface methodology (RSM) in adsorptive removal bromocresol green (BCG) dye via acid functionalized rice husk (AFRH) was the crux this work. Tetraoxophosphate V used preparing AFRH. The effects process parameters initial concentration, solution pH, adsorbent dosage, temperature, contact time were investigated. synthesized AFRH characterized...

The application of fertilizers is necessary for continuous replenishment plants nutrients, sustaining the productivity soils. Inorganic are very simple, chemically defined, water soluble, and easily absorbed immediate reproducible responses in plants. In excess needs however, they do not only scorch plants, but also lost to atmosphere as greenhouse gases. Prolonged usage leads reduced soil quality, acidification (accompanied by dissolution carbonate gases emission), contamination underground...

The electrification rate in sub-Saharan Africa, standing at 45% 2018, is significantly lower when compared with global benchmarks. 600 million individuals lacking access to electricity constitute over two-thirds of the worldwide aggregate population electricity. Limitations power grids have placed a disproportionate burden lack energy on rural populations. cheapest approach achieving universal numerous regions seems be rooted renewable energy. diminishing cost small-scale solar photovoltaic...

Soil forms solution when it is in contact with water or any liquid. This soil disperses into the ground different parts, at velocities. Hence, chemical contents of are leached gradually from infiltrating water. parameter characterizing this phenomenon referred to as Solute dispersivity. The objective study model contaminant transport nitrate soil, calibrate and verify derived. Dispersion studies were performed laboratory using columns filled silver (AgNO3) solution. Samples collected column...

Proper understanding of the historical annual runoff characteristics with respect to climate impacts is essential for effective planning as well management water resources in river basins. In this study, climate-flood model which connects and was developed Adada River Nigeria. Thirty years records climatic data were used develop a multiple linear regression model. The coefficient determination evaluated model, hypothesis equally tested aid t-test one-way analysis variance. indicated that...

Genetic algorithm (GA) assisted optimization was used in the adsorptive removal of bromocresol green (BCG) from solution. The adsorbent acid-functionalized corn cob (AFCC). properties were investigated via instrumental analysis involving Fourier Transform Infra-Red (FTIR) and Scanning electron microscopy (SEM). Non-linear modeling various degrees isotherm models study. Adaptive neuro-fuzzy inference systems (ANFIS), response surface methodology (RSM), artificial neural network (ANN) to model...

Unexpected flood due to climate change has caused tremendous damage both lives and properties, especially in tropical areas. Nigeria Southeastern region been devastated by from extreme weather conditions. Flood mitigation involves accurate forecasting, precise prediction, evaluation, intervention strategy. This study aims at using machine learning solutions investigate predict susceptibility selected rivers the south-eastern of Nigeria. The regional hydrogeological data 1981–2019 was...

Banana peel fiber adsorbent (BPF) with well-arranged substructure of pores was fabricated via esterification reaction organic acid and biomass. The emerged employed in taking away crude oil from water surface. Three machine learning tools such as RSM, ANN ANFIS for the modelling optimization process. From results, optimal layer removal 98.2% achieved at ratio 0.2 g /100 cm3. For now, BPF displayed high adsorptive prospect a very low pH 4 96.8% removal. On other hand, activation energy,...

The techno-economic analysis of producing biodiesel from agrarian wastes at optimal condition was carried out. acid activated empty palm fruit bunch ash (AAEPFBA) catalyzed the methyl ester production. AAEPFBA catalyst synthesized waste bunch, and modified with phosphoric acid. activation best achieved by adding H3PO4 in a ratio 1:2 (g/ml). modification increased alkaline properties surface area decreased particle size adsorption energy. process variables temperature 61.9 °C, reaction time...

This research aimed to optimize and model the adsorption process of oil layer removal using activated plantain peels fiber (PPF), a biomass-based material. The adsorbent was by thermal esterification methods human environmentally friendly organic acid. Effects parameters were examined one factor at time (OFAT) batch studies, revealing optimal conditions for removal. Also, RSM, ANN ANFIS used adequately predict with correlation coefficient > 0.98. RSM modelling revealed best as 90 °C, 0.2...

This work focuses on the recycling of waste groundnut oil as a potential feedstock for biodiesel production using activated coconut husk regenerating agent. The was functionalized organic acid. properties were investigated via instrumental analysis. Non-parametric modeling involving 2-degree isotherm models used. regeneration/recycling done in batch mode examining key factors temperature, time, concentration and dosage. Biodiesel synthesized from recycled transesterification reaction....

This research focuses on techno-economic analysis of the statistically optimized biodiesel production using African Pear Seed Oil and activated empty palm fruit bunch biocatalyst to ascertain viability producing pear seed oil methyl ester (APSOME). Central composite design response surface methodology (RSM) was used for optimization process variables. The acid ash (AAEPFBA) catalyst synthesized from waste bunch, modified by adding H3PO4 in a ratio 1:2 (g/ml). RSM model predicted that highest...

The outdoor gamma dose rates and the activity concentrations of potassium-40, uranium-238, thorium-232 within study area were carried out using calibrated hand-held detector (RS-125 spectrometer) NaI(Tl) spectroscopy. in-situ measurement results rate indicate that hotspot is at location 4 with a value 100 nGyh-1. from revealed highest to be 288.09, 96.49, 136.12 Bqkg−1 for sediments 257.31, 66.93, 96.57 Bqkg water, respectively. mean concentration potassium-40 uranium-238 was observed in...

Hydrologic designs require accurate estimation of quartiles extreme floods. But in many developing regions, records flood data are seldom available. A model framework using the dimensionless index for transfer Flood Frequency Curve (FFC) among stream gauging sites a hydrologically homogeneous region is proposed. Key elements include: (1) confirmation homogeneity region; (2) flood-basin area relation; (3) derivation regional frequency curve (RFFC) and deduction FFC an ungauged catchment as...

Over the past two decades, southeastern Nigeria has witnessed huge economic losses due to severe flooding caused by climate change. Understanding contribution of change is critical for runoff utilization and control, especially in tropics. This study focused on quantifying amount contributed effects River Basin Nigeria. First, Climate-Flood model equation was expressed using Time-Series Autoregressive technique. Using Minitab software, mean annual values contributing variables from prolonged...

Several projects are under consideration within the Anambra-Imo River Basin (AIRB). However, location of these differs from established gauging stations, necessitating transposition hydrological information for ungauged sites. This study investigates transposability maximum monthly stream records using regression models, employing neighboring as predictors. Ten-year five rivers (Adada, Ajali, Otanmiri, Imo, and Ivo Rivers) were deployed to predict one another a simple with trends (linear,...

Abstract This study investigates the potential of cobalt ferrite-doped mango seed shell (CoFe 2 O 4 -MSS) as an innovative and eco-friendly approach for treatment crude oil-polluted water. CoFe -MSS was synthesized by impregnating carbonized with ferrite nanoparticles through thermal precipitation. The systematically evaluated adsorption capacity, kinetics, isotherm behavior developed material using standard equations. Experimental results demonstrate effectiveness in adsorbing oil...

<title>Abstract</title> The usage of plentiful raw discarded resources in the manufacturing concrete has proven to be a sustainable and environmentally beneficial method making for variety purposes. In this study, physical mechanical properties made by partially fully substituting fine aggregates ordinary Portland cement with periwinkle shell ash quarry dust (5%, 10%, 15%, 20%, 100%), respectively, were examined. ratio water utilized mixture, 1:2:4 was 0.60. Fresh underwent slump test, then...

Abstract The usage of plentiful raw discarded resources in the manufacturing concrete has proven to be a sustainable and environmentally beneficial method making for variety purposes. In this study, physical mechanical properties made by partially fully substituting fine aggregates ordinary Portland cement with periwinkle shell ash quarry dust (5%, 10%, 15%, 20%, 100%), respectively, were examined. ratio water utilized mixture, 1:2:4, was 0.60. Fresh underwent slump test, then 150-mm cubes...