This research aimed to assess the adsorption properties of raw walnut shell powder (WNSp) for elimination methylene blue (MB) from an aqueous medium. The initial MB concentration (2–50 mg/L), mass biomaterial (0.1–1 g/L), contact time (10–120 min), medium’s pH (2–12), and temperature (25–55 °C) were optimized as experimental conditions. A maximum capacity 19.99 mg/g was obtained at 50 mg/L, a medium 6.93 25 °C, using 0.2 g/L WNSp. These conditions showed that dye process occurred...

Natural bio-based insulation materials have been the most interesting products for good performance and low carbon emissions, becoming widely recognized their sustainability in context of climate change environmental impact building industry. The main objective this study is to characterize a new bio-sourced material composed fibers an adhesive based on cornstarch. This innovative developed from waste marine plant called Posidonia oceanica (PO), abundantly found along Algerian coastline....

In this work, the adsorption mechanism of phenol on activated carbon from aqueous solutions was investigated. Batch experiments were performed as a function adsorbent rate, solution temperature, initial concentration, stirring speed, and pH. The optimal operating condition were: mass/volume ratio 0.6 g.L−1, temperature 20 °C speed 300 rpm. equilibrium data for analyzed by Langmuir, Freundlich, Temkin isotherm models. It found that Freundlich models fitted well process is favorable. Langmuir...

The main objective of this work was to assess the performance combined processes, adsorption/ photodegradation ciprofloxacin antibiotic (CIP). Adsorption achieved on natural hydroxyapatite (nat-HA) in batch mode. effect pH (3–12), initial concentration (C0, 25–200 mg L−1), adsorbent dose (m, 0.25–3 g and temperature (T, 298–328 K) adsorption capacity studied. At 298 K, maximum uptake 147.7 g−1 observed with close 8, 1 L−1nat-HA dose, 150 L−1 CIP concentration. effective, a removal percentage...

In this work, the emulsified liquid membrane (ELM) extraction process was studied as a technique for separating different pollutants from an aqueous solution. The used consisted of Sorbitan mono-oleate (Span 80) surfactant with n-hexane (C6H14) diluent; internal phase nitric acid (HNO3). major constraint in implementation by is stability emulsion. However, study focused first on controlling emulsion optimizing many operational factors, which have direct impact membrane. Among important...

This study conducts a comprehensive investigation to optimize the degradation of crystal violet (CV) dye using Fenton process. The main objective is improve efficiency process by optimizing various physicochemical factors such as Fe2+ concentration, H2O2 and pH solution. results obtained show that optimal dosages giving maximum CV (99%) are 0.2 3.13 mM, respectively. solution for 3. type acid adjustment revealed sulfuric most effective one, providing 100% yield, followed phosphoric acid,...

A new, low-cost, available sorbent, cedar cone (CC), was tested for its ability to remove basic dye Rhodamine B (RhB) from aqueous solutions. Sorption kinetics of RhB solution on CC were studied in a batch process. In order understand the mechanisms sorption by CC, models Weber and Morris Boyd applied. It found that For intraparticle diffusion model is divided into three stages: (i) instantaneous or external surface sorption, (ii) gradual stage where rate limiting (iii) final equilibrium...

In this work, cedar cone (CC), an abundant agricultural waste in north Algeria, was used as adsorbent batch mode for elimination of cationic dye crystal violet (CV) from aqueous solution. The functional groups were determined by Fourier transform infrared spectroscopy. adsorption process examined the functions dose, contact time, initial CV concentration and solution pH. isotherms studied at different temperatures (289–318) K, shape obtained compatible with "L-type" isotherm. equilibrium...

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Chitosan was hydro-thermally extracted from grey shrimp carapaces and characterized using various techniques (degree of deacetylation (DD), viscosity, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), surface area (BET)). It then used for Cu(II) removal in a batch system, achieving maximum capacity 89 mg/g under standard conditions. Both pseudo-first-order pseudo-second-order nonlinear kinetic models described the adsorption ions on chitosan well, with better fit model at...

Abstract In the current report, both response surface methodology (RSM) and artificial neural network (ANN) were employed to develop an innovative way for removing crystal violet (CV) from aqueous media using Haloxylon salicornicum (HS) as a cost‐effective, eco‐friendly adsorbent. HS was characterized scanning electron microscopy (SEM) Fourier‐transform infrared (FTIR) spectroscopy. The effects of operational parameters such adsorbent dosage, initial dye concentration, pH on studied central...

The heavy metals concentration in algae can be used as a bioindicator of the pollution an ecosystem. In present study, we determined levels elements Fe, Pb, Cu, and Zn chlorophyta species Cladophora, Spirogyra, Chara, Zygnema. samples were collected February 2021 three different locations Algeria (Dar El Chioukh lake, Oued Mellah, Boucedira). Our results showed that all four accumulated high surface water, with concentrations ranging from 3.14 to 5600 mg/kg. Pb exceeded recommended standard...

Vacuum membrane distillation (VMD) is a compelling technique for desalinating water because it exhibits superior pure permeability at lower operating temperatures compared to other technologies. This leads reduced energy consumption, heat loss via conduction across the surface, and minimal transfer through due low pressure on permeate side. Detailed modelling of mass in VMD essential optimizing process as provides valuable insights that contribute advancement successful implementation...

This study aims to thoroughly examine the chemicals and effects of ethanol extract from T. polium’s upper parts. We used Soxhlet method for extraction, resulting in an with a significant yield 20.6%. Qualitative analysis identified variety compounds, such as tannins, saponins, reducing terpenoids, quinones, alkaloids. In quantitative using colorimetric method, we found was rich total flavonoids (20.78 mg equivalent QE/g DW extract) polyphenols (227.43 GAE/g extract). To assess antioxidant...

Seawater desalination stands as an increasingly indispensable solution to address global water scarcity issues.This study conducts a thorough exergoenvironmental analysis of multi-effect distillation with thermal vapor compression (MED-TVC) system, highly promising technology.The MED-TVC system presents energy-efficient approach by harnessing waste heat sources and incorporating compression.The primary objective this research is assess the system's thermodynamic efficiency environmental...

Community drinking water sources are increasingly contaminated by various point and non-point sources, with emerging organic contaminants microbial strains posing health risks disrupting ecosystems. This study explores the use of zinc oxide nanoparticles (ZnO-NPs) as a non-specific agent to address groundwater contamination combat resistance effectively. The ZnO-NPs were synthesized via green chemistry approach, employing sol-gel method lemon peel aqueous extract. catalyst was characterized...

Nowadays, pharmaceutical compounds are often detected in surface water and groundwater.The potentiality of commercial activated carbon (CAC) for the removal ketoprofen (KP) from aque ous solution was studied.The effects various parameters such as pH, time, temperature, mixture speed, ionic strength, adsorbent mass initial concentrations KP were examined.Batch kinetics isotherm adsorption experiments performed to remove aqueous solution.It found that by CAC increased with...

Refrigeration plays a significant role across various aspects of human life and consumes substantial amounts electrical energy.The rapid advancement green cooling technology presents numerous solar-powered refrigeration systems as viable alternatives to traditional equipment.Exergy analysis is key in identifying actual thermodynamic losses improving the environmental economic efficiency systems.In this study exergy analyze has been conducted for vapor compression (SP-VCR) system region...

Abstract In this study, cedar cone (CC), a forest waste, available in large quantity Algeria, is proposed as novel material for the removal of basic dye Rhodamine B (RhB) from aqueous solutions. The effect operating parameters such sorbent dose, initial concentration, stirring speed and solution temperature on sorption kinetics RhB was studied. by increased with an increase dose concentration. Kinetic models, pseudo-first pseudo-second order rate equations were applied. obtained results show...

Several drinking water production techniques are being established to respond immediately the growing needs of population. The system air gap membrane distillation (AGMD) is best attractive option for process desalination. This thermal characterized by its potential provide at low energy costs when combined with solar energy. In this paper, AGMD brackish desalination unit potentialities coupled were investigated. Ghardaïa south region has been considered as field our study. Mathematical...

In the dynamic realm of sustainable energy storage technologies, global research landscape presents myriad scientific and economic challenges. The erratic growth renewable energies alongside phasing out conventional power plants poses a significant hurdle in maintaining stable balance between supply demand. Consequently, solutions play pivotal role mitigating substantial fluctuations Metal–air batteries, distinguished by their superior density enhanced safety profile compared to other...

The adsorption potential of sewage sludge treated with sulfuric (SS AS0.1 ), nitric AN0.1 ) and phosphoric AP0.1 acid for the cationic dye, Malachite Green (MG), was investigated.On basis amount dye adsorbed (9.52 mg/g), treatment found to be most suitable in comparison other two acids.The tests were carried out depending on adsorbent dose (0.25-4 g), pH solution (3-11), temperature (288-318 K), contact time.The MG by SS minimal at a very acidic (pH ≤ 3); optimal 5.The decreases increasing...