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
Effective removal of Calcium and Magnesium Ions from boiler feed Water using Polyacrylonitrile supported titanium tungstovanadate composite ion exchange nanofiber
Water and Wastewater Treatment
The challenge posed by the presence of calcium ions (Ca 2+) in process streams is attributed to its adverse effects on the heat transfer efficiency of process equipment. In this study, a novel electrospun nanofibrous composite was synthesized by combining polyacrylonitrile (PAN) with well...
Week Day and Week End Air Ion Variability at Rural station Ramanandnagar (17° 4’ N 74° 25’E), India and At Different Atmospheric Sites in India
General
Globalization and liberalization polices of the government of India have increased the number of road vehicles nearly 92.6% from 1980-81 to 2003-2004. Therefore to know whether there is effect of increase of industrialization in the urban areas like Pune (18° 32′N, 73° 51′E); Mumbai (18° 55' N, 72°...
Determination of the optimal conditions for the adsorption of cadmium ions and phenol on chestnut(Castanea sativa) shell
General
Adsorption of cadmium ions and phenol from aqueous solutions on chestnut (Castanea sativa) shell was studied. An incomplete 33 factorial design was applied to investigate the influence of the initial cadmium ions (20-60-100 mg l-1) or phenol concentration (0.01-0.255- 0.5 g l-1), temperature (10-25...
Extraction of Zinc Metal ions from Aqueous Solution Using Ionic Liquids
Water and Wastewater Treatment
This work analyzes the extraction behavior of transition heavy metal Zinc and other metal ions such as Copper, and Cadmium from hydrochloride aqueous solution in the absence of chelating agents by using a novel class of hydrophobic ionic liquids. Ionic liquid for this study was synthesized based on...
Influence of inorganic oxidants and metal ions on photocatalytic activity of prepared zinc oxide nanocrystals
General
Zinc oxide nanocrystals were prepared by precipitation method using ZnSO4.7H2O and NaOH as raw materials. The prepared ZnO nanocrystals were characterized by powder X-ray diffraction (XRD). Primary objective was to focus on the influence of inorganic oxidants, metal ions and anions on photocatalytic...
Using wood and bone ash to remove metal ions from solutions
General
In the present work, wood and bone ash were used to remove metal cations from solutions. Cation-removal capacity of the ashes was analyzed by potentiometric titration. It was found that the capacity of wood ash was two times higher (37.3 meq g-1) than bone ash (15.2 meq g-1). Kinetics of metal ions...
Investigation of Copper Ion adsorption using Activated Sawdust Powder: Isotherm, Kinetic and Thermodynamic studies
Water and Wastewater Treatment
The batch adsorption technique investigated the efficiency of sawdust adsorbent for removing copper ions from synthetic solutions. A chemical synthesis process prepared the activated sawdust powder, and its surface area and pore volume were obtained by BET isotherm analysis. The ability of copper...
Elimination of nickel and chromium(VI) ions from industerial wastewater by electrodialysis/characteristics/impact of parameters
Water and Wastewater Treatment
Healthy water is a concern for the world due to rapid population growth and technological advancement. The entry of heavy metals into water as a result of various activities causes water pollution that has persistent effects. In this study, a specially designed electrodialysis cell was used to...
Investigation of mechanism of metal ion adsorption from aqueous solutions using Prosopis julyflora roots: Batch and fixed bed column studies
Water and Wastewater Treatment
Adsorption of heavy metal ions (Cr, Pb & Zn) using prosopis julyflora roots has been investigated by batch adsorption and fixed bed column process. The various properties of adsorbent were analysed and the FT-IR spectra & SEM studies of prosopis julyflora powder, before and after adsorption of metal...
Removal of ammonia by clinoptilolite
General
The important advantage of zeolite applied to water treatment is its high porosity when comparing to other minerals. The porosity results in good hydrodynamic properties (the increase in the pressure loss on the zeolite filters is 1.5-2.0 times smaller than in the case of sand filters) and...
Detoxification of toxic metal ions by sorption onto activated carbon from hevea brasiliensis bark – a comparative study
General
Sorption of toxic metal ions (Ni2+, Cu2+ and Cd2+) from Hevea brasiliensis bark carbon (HBBC) was carried out at 30±1 °C under various experimental conditions. Effect of various process parameters has been investigated by following the batch adsorption technique at 30 +1°C. The percentage removal...
Analysis of Spatial-temporal and Ion Characteristics Change of Precipitation in the Southwest of China, from Policy Perspective
Air Quality
According to the data from Luzhou environmental monitoring center from 2015 to 2018, the tendency of spatial-temporal and ion characteristics in precipitation have been analyzed in order to demonstrate the precipitation pollution status. Traditionally, the environment may become worse as the...
Use of ion exchange for removal of Ammonium: A biological regeneration of zeolite
General
Nitrogen in the Ammonia form can have deleterious effects in water resources. Ion Exchange by zeolite and biological Nitrification processes are two proposed methods for removing Nitrogen compounds from wastewater and effluents. The main objective of this research was to investigate the efficiency...
Biosorption potential of neem leave powder for the sequestration of arsenic and chromium metal ions
Water and Wastewater Treatment
In this study, neem leaf biosorbent, prepared through chemical synthesis and activated with concentrated sulfuric acid, was utilized as an organic adsorbent for the removal of heavy metal ions, specifically arsenic (As) and chromium (Cr), from wastewater. The characteristics of the biosorbent were...
Ammonia removal from fertilizer plant effluents by a coupled electrostatic shielding based electrodialysis / electrodeionization process
General
Electrically and ionically conducting graphite powder beds interposed between the anode and cathode inside an electrolytic setup are used as intermediate bipolar electrodes. The beds cause electric field discontinuity by eliminating the applied electric field locally within their mass and act as...
Sorption of Cobalt (II) Ions from Aqueous Solutions Using Chemically Modified Chitosan
Water and Wastewater Treatment
Removal of Co(II) ions from aqueous solutions using chitosan-vanillin (polymer I) and chitosan-ortho-vanillin (polymer II) adsorbents has been investigated under different experimental conditions. The effect of pH, contact time, adsorbent mass, temperature, and initial concentration of studied ion...
Adsorption feasibility in the cr(total) ions removal from waste printing developer
General
In this article, the technical feasibility of various commercial adsorbents (activated carbon, clinoptilolite, and their mixture) for removal of Cr(total) ions from waste printing developer has been represent. Experimental tests were performed in laboratory batch mode. The adsorption data were...
Activated Biochar from Gracilaria Edulis Seaweeds: A Novel Biosorbent for Efficient Uranium Ion Removal in Wastewater Treatment
Water and Wastewater Treatment
The biosorption of uranium ions was explored through batch studies employing activated biochar derived from Gracilaria Edulis seaweeds. A chemical synthesis approach utilizing concentrated sulfuric acid created and activated the adsorbent material. SEM and FTIR measurements were used to characterize...
Synthesis of Multi Wall Carbon Nanotubes based on zirconium oxide as supported material and its application as nanosorbent for copper ions removal
Nanomaterials in the environment: applications and effects
Water pollution caused by various toxic contaminants has become one of the world's most serious issues. Nanotechnology has received a lot of attention in recent decades, and various nanomaterials for water remediation have been developed. For this purpose, MWCNTs were directly synthesized using a...
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...
Size distribution and chemical composition of airborne particles at Akrotiri Research Station, Crete, Greece
General
Particulate matter measurements were performed at the Akrotiri research station on the island of Crete (Greece) using an 8-stages Andersen non-viable impactor. The main purpose of the current work was to measure the ambient levels of PM10 particulate matter as well as the concentrations of metals...
Removal of Pb (II) Ions in The Aqueous Solution by Photo-Fenton Method
Advanced Oxidation Processes
Photo-Fenton for decreasing concentration of Pb(II) ions in the aqueous solution is systematically studied. The photo-Fenton process was carried out by batch technique, under UV light. The influences of process operating parameters were evaluated. The results of the research demonstrated that by...
The effect of Iron Ion on Removal Efficiency of Dissolved Organic Carbon (DOC) Using UV/TiO2
Water and Wastewater Treatment
Most of water sources throughout the world contain natural organic matter (NOM), which is the best description as a complex mixture of organic compounds. The effect of iron ion on removal efficiency of dissolved organic carbon (DOC) using UV/TiO 2 photo catalytic oxidation (TiO 2) was examined. In...
Isolation of Sulfur Oxidizing Bacteria from Polluted Water and Screening for Their Efficiency of Sulfide Oxidase Production
Multidisciplinary research in environmental science
Presence of sulfide in the environment represents huge concerns to biological life. The high costs and low safety of chemical and physical removal strategies lead to finding alternative strategies. Sulfur-oxidizing bacteria (SOB) are consider a promising alternative strategy, where they play a...
Comparative impact of different iso-osmotic solutions on osmotic adjustment in Gossypium barbadense
Multidisciplinary research in environmental science
To discriminate the specific response of ion toxicity versus osmotic stress on altering leaf solute contents, contributing of organic and/or inorganic components in osmotic adjustment and its reflection on plant performances under ionic and osmotic stresses, two cotton (Gossypium barbadense L.)...
Thematic areas
Circular economy
Climate change and air pollution
Solid waste management
Water and wastewater
Study on the Degradation of Brominated Flame Retardants in Waste Circuit Boards Using a Supercritical Fluid Method: Methodology, Influencing Factors, and Optimal Fluid Type
Innovative environmental solutions
07-11-2024
Degradation of polystyrene plastics by alkane monooxygenase and alcohol dehydrogenase
Solid Waste Management
05-11-2024
Environmental Impact Assessment of Solid Waste Disposal on Groundwater Quality
Water Quality
05-11-2024
LC MS/MS Phytochemical analysis of Ruta montana and the Hepatic Preventive Effects in male Rats exposed to Tebuconazole
Environmental Health
05-11-2024
Review of Remote Sensing, GIS and Soft Computing Tool for Predicting the Land-use and Environment Changes
Innovative environmental solutions
04-11-2024
Integrated Early Flood Prediction using Sentinel-2 Imagery with VANET-MARL-based Deep Neural RNN
Floods, Droughts and...
04-11-2024
Phytochemical characterization and valorization of Quercus ilex (west of Algeria)
General
30-10-2024
Sustainable Enhancement of Mechanical and Wear Properties in Natural Fiber Composites: Integration of Bio-Waste Fillers and Taguchi Optimization for Bio Medical Applications
Biowaste
19-12-2024
Impact of microplastic pollution on the ocean and marine animals: A comprehensive review
Microplastics in the...
19-12-2024
Optimization of Nozzle Hole Number for Dual Fuel Operation Using Biodiesel Blends: A Response Surface Methodology Approach
Sustainable Energy
19-12-2024
Radioactivity and radon exhalation from cat litter – Is there an issue?
General
19-12-2024
Effect and mechanism of perfluorooctanoic acid on extracellular polymeric substances of microorganisms during biological wastewater treatment
Water and wastewater...
19-12-2024
Modelling of PM2.5 Concentrations Using Artificial Neural Networks: A Case Study of Islamabad
Air Quality
19-12-2024
Influence of the Injector Nozzle on Hydrogen-Powered Juliflora Biodiesel in HCCI Engines: A Surface Response Methodology Approach
Sustainable Energy
19-12-2024
Bioclimatic Analysis and Proposal of Bioclimatic Strategies for Buildings: Case Studies in Santo André, São Paulo, Brazil
Climate change mitigation...
14-12-2024
Prosopis julifera oil: optimization and biodiesel production
Sustainable Energy
14-12-2024