Activated carbons (MBK400 and MBK600), produced from milk bush kernel shells, were carbonized at 400 600°C, respectively, activated with H3PO4, subsequently, employed to remove heavy metals (cadmium, lead, nickel, zinc, iron, copper) in dairy industrial wastewater (DIWW). Effects of doses (1.0–3.0 g/L) contact time (5–25 min) constant agitation (120 rpm) on removal efficiencies adsorption capacities the agricultural precursors investigated. Four types Langmuir isotherm model used fit metals....

<p>The thin layer drying behaviour of ginger slices in a laboratory dryer was examined. The 5 mm, 10 mm and 15 thicknesses were dried using heated ambient air at temperatures from 40 to 70 ºC velocity 1.5 m/s. effects temperature slice thickness on the characteristics, time energy requirement process determined. results have shown that an increase causes shorter times. Thinner also time. effective moisture diffusivity values increased 3.36814 × 10<sup>-10</sup>...

ABSTRACT Drying is one of the common methods food preservation and carried out on untreated/unblanched treated/blanched chili pepper using sun, solar hot‐air drying. The drying curves generated from three showed that was faster than pepper. rate period observed for all samples falling regime. This suggests blanching pretreatment assisted water loss thus decreased resistance to at surface product. time dried varied 27 h 144.5 sun respectively. values moisture diffusivity coefficient ranged...

The removal of lactic acid from fermentation broth aims at enhancing the process through reduction and also purifying end product––lactic acid. In this work, extraction was carried out 298.15, 303.15, 308.15 K using hexanone, octanone, nonanone, respectively. solubility data were determined titration cell equilibration methods, ternary systems exhibit type-1 behavior LLE all studied temperatures. reliability experimental tie lines ascertained by both Hand Othmer–Tobias correlations, standard...

Steam-Activated Carbon (SAC) prepared from shell of the seed Chrysophyllum albidum was used to adsorb cadmium (Cd) ion aqueous solution. The sorption process with respect its equilibria, kinetics and thermodynamics as well effects pH, contact time, adsorbent mass, adsorbate concentration particle size on adsorption also studied. kinetic data followed first-order rate kinetics; equilibrium were better represented by Langmuir model than Freundlich. capacity calculated isotherm 150.33 mg Cd g–1...

This study investigated chromium (VI) removal from simulated water using H3PO4 modified Bauhinia rufescens pod (ACBRP). Box-Behnken Design was used to optimize pH (2–10), time (30–120 min), agitation (120–200 rpm), and temperature (25–40°C) for the adsorption process. Highest capacity (AC) efficiency (RE) obtained were 9.762 mg/g 87.62%. Correlation coefficient of quadratic models developed 0.9822 0.9790 AC RE, respectively. Second-order kinetic model fitted well data while Weber Morris is...

Aim: The present study investigated the effect of operating parameters on mechanical extraction oil from groundnut kernel using hydraulic press Methodology: A five factor, levels central composite design (CCD) was applied to determine effects independent variables (moisture content, heating temperature, time, pressure and pressing time) yield. Response surface analysis method employed optimize in experiment. Results: Data shows that all significa ntly affected yield at 95% confidence level....

This study is important in terms of the fact that production a dried product with good quality and minimum process drying cost dependent on individual or combinations several conditions. However, if not properly conducted at favourable conditions, it generates quality-related problems for consumer food market. Thus, this focused optimization evaluation main interactive effects air temperature (DAT), velocity (DAV), relative humidity (RH), time (DRT) cabinet-tray hot attributes chili pepper...

Parinari polyandra B. seed is a potential source of oil with relatively high yield. Optimizing the extraction process will enhance its economic and industrial relevance, providing useful information for would be investors. Aims: This work aimed at extracting from seeds B . by using solvent method. The was optimized response surface methodology to determine effect four sets parameters corresponding optimum Methodology: extracted n-hexane petroleum ether as solvents, Central Composite Design...

The presence of methylene blue (MB) in wastewater is a major concern the environment due to its low biodegradability and harmful effect on man. adsorption MB from aqueous solution onto activated carbon (AC) prepared mango seed shells sourced locally Ogbomoso Township was investigated this study. AC shell by activating with BaCl2 at impregnation ratio I.R (1:2 w/w), microwave frequency (600 Hz), time (30 min) before being carbonized 500 °C for 20 min. Batch experiment carried out 25 study...

This study investigated and evaluated the linear or main interactive effects of drying process conditions on cabinet hot air quality traits dried okra slices using method response surface (RSM). Rotatable central composite design (RCCD) with four-factors-five-levels RSM was utilized to evaluate effect four condition, namely velocity, AV (0.0–2.0 m/s), relative humidity, RH (60–80%), temperature, DT (40–80 °C), time, DRT (90–450 min) (product moisture content (PMC), total plate count (TPC),...