The Global NEST Journal is an open access journal that publishes original research articles, short papers and critical reviews on all aspects of Environmental Science and Technology. These comprise, but are not limited to, Pollution Control Technology, Global Environmental Change, Air Quality, Water Quality, Water and Waste Water Treatment, Solid Waste Management, Hazardous Substances and Risk...Read full aims and scope
Nature and adsorption capacity of banana leaf rim carbon
Environmental Sciences
The activated charcoal (AC) was synthesized from banana leaf rim (BLR) through three activation methods; physical (BLRC), chemical (Z BLRC, zinc chloride) and microwave activation (MW BLRC). The AC was characterized using fourier transform infrared spectrometer (FT-IR), Thermogravimetric analysis...
Adsorption of atrazine in packed beds
General
The adsorption of the herbicide atrazine in packed beds filled with solids modelling soil components, (silica and humic acid), was studied at conditions simulating the adsorption of atrazine in cultivated soils. The choice of only two constituents of soil in the experimental study was based on the...
Study of the Cu(II) removal from aqueous solutions by adsorption on titania
General
The removal of heavy metals from wastewaters is a matter of paramount importance due to the fact that their high toxicity causes major environmental pollution problems. One of the most efficient, applicable and low cost methods for the removal of toxic metals from aqueous solutions is that of their...
Study of polyacrylic acid adsorption on the interface of hydroxyapatite – electrolyte solutions
General
The adsorption of polyacrylic acid (PAA) on hydroxyapatite (HAP) from HAP saturated solutions was studied in this work as a function of PAA concentration, temperature, pH and ionic strength. In all experiments, the adsorption was studied under conditions of negatively charged adsorbent and adsorbate...
Kinetics and adsorption studies of lead (II) onto activated carbon using low cost adsorbents
Water and Wastewater Treatment
The removal of Lead (II) from aqueous solutions using Fagopyrum esculentum Moench (Buckwheat) and Bambusa vulgaris (common bamboo) as adsorbents was investigated. The effects of various experimental parameters such as initial concentration, contact time and pH have been studied using batch...
Adsorptive Capacity of Malachite Green onto Mg/M3+ (M3+=Al and Cr) LDHs
Water and Wastewater Treatment
Layered double hydroxides (LDHs) of MgM3+ (M3+=Al and Cr) were synthesized by coprecipitation method to form Mg/Al and Mg/Cr LDHs. The materials were applied as adsorbents of malachite green in aqueous solution. The physical properties of Mg/Al and Mg/Cr were analyzed using XRD, FTIR, BET and TGDTA...
Kinetic and isotherm modeling of adsorption of dyes onto rice husk carbon
General
Rice husk carbon (RHC) has the ability to adsorb the dyestuff from aqueous solution. It may be useful low cost adsorbent for the treatment of effluents, discharged from textile industries. The effectiveness of RHC have been tested for the removal of colour from the wastewater samples containing...
Adsorption kinetics of Direct Black 38 on nitrogen-doped TiO2
Water and Wastewater Treatment
In this work, three samples of nitrogen-doped TiO 2 prepared at different calcination temperatures (400, 450 and 500 °C) were applied for the adsorption of Direct Black 38. Kinetic studies about the adsorption of Direct Black 38 on nitrogen-doped TiO 2 were performed under different initial dye...
Adsorption of Co(II) ions using indigenous tamarind seed biochar: batch adsorption and modeling studies
Water treatment
With an estimated volume of 162 thousand metric tonnes in 2020, India is the world's largest producer of tamarind. The country is home to a number of tamarind species, and production is spread out across the country. Farmers and agro-industries continue to encounter numerous challenges in the...
Adsorption of cadmium and copper onto natural clay: isotherm, kinetic and thermodynamic studies
Water and Wastewater Treatment
Clay of the Middle Atlas Mountains region, Morocco, was used to investigate the removal of heavy metals ions (Cadmium and Copper) from aqueous solutions with respect to several experimental conditions including pH, contact time, initial solute concentrations, temperature and ionic strength. Kinetic...
Adsorption of Dyes Using Natural Minerals: A Review
Water and Wastewater Treatment
Adsorption is an effective and widely technique used for separation many pollutants from wastewater. Pollution of water with color material such as dyes is of environmental concern due to their toxicity and cause carcinogenic effects on human and aquatic life. These dyes are presented into the water...
Adsorption of anionic and cationic dyes from aqueous solutions on fly ash-based porous geopolymer
Water and Wastewater Treatment
Fly ash, solid waste from coal-fired power plant, had been utilized as raw material for porous geopolymer by alkaline activation and addition of hydrogen peroxide (H2O2) blowing agent. Porous geopolymer had higher surface area and total pore volume compared to fly ash and geopolymer without blowing...
Influence of Calcination conditions on the Adsorption Properties of the Wasted Sea Shell to the Dibutyl phthalate
Water and Wastewater Treatment
The calcined clam seashell powders were applied as adsorbent to adsorb Dibutyl phthalate (DBP), from an aqueous solution. The influence of calcination conditions including temperature and time on its adsorption capability to DBP was investigated. The shell powders calcined at 500 oC had the best...
Adsorption of lead (II) ions onto diatomite from aqueous solution: Mechanism, isotherm and kinetic studies
Pollution Control Technology
This study presents an evaluation of diatomite as a low cost adsorbent for Pb (II) removal from aqueous solutions under various conditions. The results demonstrate that adsorption of Pb (II) is strongly dependent on the pH of the solution. The effect of pH on adsorption of Pb (II) on diatomite was...
The effect of temperature on the U-232 and Am-241 adsorption by PN6 microplastics in aqueous solutions.
Microplastics in the marine environment
The effect of temperature on the adsorption of U-232 and Am-241 by PN6 has been investigated in laboratory and environmental water samples (e.g. seawater and waste water) in the picomolar concentration range. Generally, increasing temperature favors radionuclide adsorption, indicating that...
High Selectivity and Adsorption Capacity for Congo Red Toward Anionic Dyes by Adsorbent: Modified LDH with Hydrochar Made from Nephelium Lappaceum Peel
Water and Wastewater Treatment
Synthesis of Ni/Al-LDH prepared into Ni/Al-Hc composites using hydrochar from rambutan peel (Hc) and applied as a congo red adsorbent and analyzed based on adsorption selectivity, kinetics, isotherms, adsorption thermodynamics and recycling. The success of Ni/Al-Hc composite preparation was proven...
Adsorption of cationic dye (Red 95) from aqueous solution by biosynthesized nano particle of cumnium cyminum
Water and Wastewater Treatment
In the present work, the potential of cumnium cyminum as an effective bio adsorbent for the removal of cationic dye (Red 95) was investigated. Batch adsorption experiments were carried out to investigate the effects of adsorbent dosage, pH and contact time with initial dye concentration on...
Removal of 2,4-dichlorophenol by simultaneous adsorption and biodegradation (SAB) using low cost adsorbents
Pollution Control Technology
This study was aimed to investigate the use of Mustard stalk as a cheap, eco-friendly adsorbent with support matrix for the immobilization of microbial cell and for subsequent removal of 2,4-dichlrophenol(2,4-DCP) from waste water. A comparative batch study between adsorption as well as simultaneous...
Valorization of Annona reticulata biochar by chitosan for the adsorption of Azo dye from Textile effluent
Water and Wastewater Treatment
Azo dye is a synthetic aromatic dye which are direct dye frequently used in textile industry to colour fibres. It also contributes to the damage of the environment. This study examines the adsorption biochar made from Annona reticulata to remove azo dye from textile wastewater. To improve the...
Evaluation of aqueous phase adsorption of Acid Brown on mesoporous activated carbon prepared from Azolla Pinnate seaweed
Water and Wastewater Treatment
A mesoporous activated carbon was produced from the Azolla Pinnate (AP) seaweed by two-step chemical activation technique using sulphuric acid as activating agent. The adsorption of Acid Brown (AB) from aqueous solutions is examined using the produced carbon (AP). The produced activated carbon...
Comparative study on the removal of acid violet by adsorption on various low cost adsorbents
General
The kinetic studies on the removal of Acid Violet-17 (AV) by adsorption on various adsorbents such as fly ash (FA), iron chromium oxide (ICO), lignite coal (LC), kapok fruit shell carbon (KC) and cashew nut shell carbon (CC) have been made and the results have been compared with that of commercial...
Novel composite materials as P-adsorption agents and their potential application as fertilizers
Green Chemistry and Sustainable Development
The main objective of this study is to review the role of phosphorus in fertilizers, emphasizing in phosphate rock which is the primary source for phosphate fertilizer, with reference to harmful heavy metals as a consequence of their use. Simultaneously, this study examined the use of P-Adsorption...
Investigation of adsorptive properties of Ag2CO3-polyaniline composite for environmental pollution control
Water and Wastewater Treatment
In this research, the Ag2CO3-PANI composite was synthesized with a simple precipitation method and then used as an effective adsorbent for adsorption of Methylene Blue cationic dyes from aqueous solution. Characterization of the adsorbent was carried out using UV–visible diffuse reflectance...
Adsorption of Methylene Blue using Bottom Ash: Experimental Design, Isotherm Analysis, and Optimum Conditions
Water and Wastewater Treatment
This study investigated the removal of methylene blue (MB) via adsorption using waste bottom ash. The bottom ash, sourced from a waste storage site in the Çorlu district of Tekirdağ province, Thrace Region, was utilized as the adsorbent. The research examined the impact of several variables on MB...
Application of Fenton reagent and adsorption as advanced treatment processes for removal of Maxilon Red GRL
Environmental Sciences
In this paper, the removal of Maxilon Red GRL by adsorption onto raw soil sample known as Niğde (Bor) grape molasses soil and Fe+2/H2O2 reagent as advanced treatment processes were investigated. The effects of various experimental parameters such as initial Fe+2 and H2O2 concentrations, pH...
Thematic areas
Circular economy
Climate change and air pollution
Solid waste management
Water and wastewater
Biosorption of Pb(II) Ions through Nanostructured Teff Straw based Magnetized Activated Biocarbon: Aspects on Modeling, Optimization, and Kinetics
Innovative environmental solutions
16-10-2024
Elimination of malachite green by modified Fenton like process. Application of Box Behnken design
Advanced Oxidation Processes...
16-10-2024
An Automatic Data-Driven Long-term Rainfall Prediction using Humboldt Squid Optimized Convolutional Residual Attentive Gated Circulation Model in India
Climate change mitigation...
14-10-2024
Efficient Biomedical Waste Management: Optimizing Segmentation and Classification with EnU-Net-DNN-BMWC
Solid Waste Management
14-10-2024
Nitrate source analysis of underground drinking water sources in Zhangjiakou main urban area and its health risk assessment
Water Quality
09-10-2024
Groundwater quality assessment for drinking and irrigation purposes in arid to semiarid region of Indus Basin of South Punjab, Pakistan
Water Quality
09-10-2024
Effective removal of Calcium and Magnesium Ions from boiler feed Water using Polyacrylonitrile supported titanium tungstovanadate composite ion exchange nanofiber
Water and Wastewater...
09-10-2024
Optimization of the Freeze Crystallization Process for Recovering of Copper (II) Sulphate from Electroplating Wastewater Using Response Surface Methodology (RSM)
Water and Wastewater...
08-10-2024
Air Pollution and Urban Economic Growth: A Study Based on Dynamic Models
Environmental Management and...
08-10-2024
Phytochemical characterization and valorization of Quercus ilex (west of Algeria)
General
30-10-2024
Optimizing Object Detection in Bio-Waste Management with Improved Hyperbolic Tangent YOLOv5 and Binarization-Adapted K-Means Algorithm
Biowaste
30-10-2024
Spatial-temporal variations and Attribution analysis of SO2 concentration in Beijing-Tianjin-Hebei regions from 2013 to 2022
Air Quality
28-10-2024
Optimization of Lipid Production from Paddy Straw Using Dilute Acid Pretreatment and Fermentation by Rhodosporidium Toruloides
General
28-10-2024
Natural Self-Purification of Creek Ecosystems: The Role of Foam Formation in Pollutant Absorption and Microbial Decomposition
Water and Wastewater...
28-10-2024
Comparative Sensitivity Analysis of GA, PSO, and PSO-GA Algorithms for Carbon Environment Development and Sustainability
Climate change mitigation...
28-10-2024
Impact on Green Synthesised Al2O3 Nanoparticles on Performance and Emission Properties as Biodiesel operated diesel engine
Sustainable Energy
28-10-2024
Trajectory pattern extraction to climate data and climate change analytics
Climate change mitigation...
23-10-2024
Investigation of Cephalexin Removal Using Biochar Derived from Nephelium lappaceum Seeds
Water and Wastewater...
14-10-2024