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
Toxic effects of Atrazine, Deethyl-Atrazine, Deisopropyl-Atrazine and Metolachlor on Chlorella fusca var fusca
General
The toxic effects of the herbicide Atrazine, its degradation products deethyl-atrazine and deisopropylatrazine, and the herbicide metolachlor were examined in unialgal cultures of Chlorella fusca var-fusca. The toxicity of a mixture of atrazine and metolachlor was also evaluated using the same...
Comprehensive evaluation of leaching toxicity of tailings in non-resource-based cities in Anhui Province based on entropy weight-clustering method
Solid Waste Management
Toxic components in tailings pose a severe threat to the ecosystem and human health and negatively affect tailings’ resource utilization. Therefore, using the entropy weight-clustering method, we evaluated the leaching toxicity based on tailings samples from non-resource cities in Anhui Province...
Toxicity potential of particulates in the airshed of haulage vehicle park
General
This study examined the toxicity potential of total suspended particulate in the airshed of a haulage vehicle park located in a major highway connecting Lagos, the commercial centre of Nigeria to its other parts. It has an approximate area of 0.6 km2. Ambient air total suspended particulates (TSP)...
Decolarization of methylene blue and methyl orange with Ag doped TiO2 under UV-A and UV-Visible conditions: process optimization by response surface method and toxicity evaluation
Water and Wastewater Treatment
MB decolarization with pure TiO 2 and Ag doped TiO 2 based photocatalytic system were investigated under UV-A and UV-Visible conditions. Different ratios of Ag were used as metal dopant. 1% Ag-TiO 2 increased the decolorization efficiencies of MB and MO dyes, also the k app constant enhanced under...
Toxicity reduction in leather tanning wastewater by improved coagulation flocculation process
General
The wastewater of leather industry which is one of the most widespread industries having large amount of water consumption and very high pollution loads, may be characterized by several key parameters including toxic pollutants exhibiting toxicity. Therefore the effluent of leather tanning industry...
Assessment of toxicity and anaerobic degradation of antiosmotic drug based pharmaceutical effluent in an upflow anaerobic fluidized bed system
General
During the production of cephradine (a main constituent of anti-osmotic drug) a large quantity of concentrated effluent was produced. The main polluting compounds in this effluent are osmotic drug, acetic acid and ammonia. The main objectives of the study were to assess the toxicity in terms of...
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...
An evaluation of commercial textile tannins based on their inert COD content and toxicity
Water and Wastewater Treatment
This study investigates inert COD levels and toxicity of two different commonly applied textile dye auxiliaries, namely two tannin formulations (Tannin 1: a condensation product of aryl sulphonate; Tannin 2: a sulfonated phenol polymer). The experimental evaluation is performed on samples obtained...
Toxicity of Organophoshorous pesticides to the marine alga Tetraselmis Suecica
General
Organophoshorous pesticides are widely used in agriculture, because most of them are high effective and low persistent. Yet their increased usage has elicited extensive research into pesticide effects on non-target organisms, such as algae. Algae are of vital importance in the primary production of...
The ways to prevent formation of water-soluble fluorine compounds when producing phosphate fertilizers
General
Natural phosphate raw materials contain up to 3.5% of fluorine. In reprocessing natural phosphate raw material 30 - 100 % of fluorine emits into the environment as toxic compounds. The acid is used for decomposing the carbon dioxides that are contained in raw materials. The way and technology of...
Supercritical water oxidation of octol – containing wastewater
Water and Wastewater Treatment
This study investigated optimum operating conditions of supercritical water oxidation (SCWO) for octol and compared the degradation of its components TNT (2,4,6-trinitrotoluene) and HMX (octahydro-1,3,5,7- tetranitro-1,3,5,7-tetrazocine, octogen) under the same conditions. Pilot scale experiments...
Assessment of biomarker-based ecotoxic effects in combating microplastic pollution - A review
Environmental Health
Microplastics, found in various environments oceans, freshwater systems, soil, and the atmosphere, can enter ecosystems through various pathways, including the degradation of macroplastic parts or direct release from consumer products. By polluting terrestrial, freshwater, and marine ecosystems...
A Novel Hybrid IOT Based Artificial Intelligence Algorithm for Toxicity Prediction In The Environment And Its Effect On Human Health
Environmental Health
Toxicity poses a significant threat to the environment and human health. Heavy metals, such as cadmium, lead, copper, and zinc, have been shown to harm both agricultural ecosystems and human health. This paper aims to examine the effects of these heavy metals on the environment and human health, as...
Optimization of Analytical Methods for the Determination of Trace Concentrations of Toxic Pollutants in Drinking and Surface Waters
General
Pollutants posing health risks to human health and to the aquatic environment often occur in drinking and surface waters, as a result of disinfection practices, agricultural and industrial activities, wastewater discharges. Toxic pollutants belong to different chemical categories, including...
Ozone pre-oxidation of a textile industry wastewater for acute toxicity removal
General
In this work, pre-ozonation for degradation, decolourization and detoxicifying of a raw textile wastewater collected in a textile fininshing industry, Istanbul (Turkey) is investigated. Differing from the previous studies, a low ozone (O3) flow rate (9.6 mg min-1) was applied at original pH of the...
Immobilization of Electric Arc Furnace dust toxic elements within the matrix of concrete based products
General
Electric Arc Furnace Dust (EAFD) generated through the production of carbon and alloy steel products is classified as environmentally hazardous waste mainly because of its relatively high levels of Pb, Cd and Cr. The aim of the present work was to investigate the effect of the EAFD addition on the...
Air-vegetation-soil partitioning of toxic chemicals in environmental simulation modeling
General
Accumulation of airborne pollutants in vegetation is an important initial step in the uptake process of the terrestrial food web, providing direct and indirect routes by which biota and, eventually, humans are exposed to chemicals. A set of algorithms for estimating atmospheric pollutant...
Toxic phytoplankton in eutrophic regional seas: an overview
Ecology, environmental change and management
Toxic algal blooms have become a major environmental problem over the last few decades because of their impact on fisheries, leisure activities, national income and human health. It is known that Harmful Algal Blooms (HABs) can occur naturally but the frequency of occurrence as well as their...
Reduction of soluble microbial products in activated sludge system with pure oxygen aeration under toxic stress condition of phenol
Water and Wastewater Treatment
This study aimed to explore the effect of pure oxygen aeration on the generation of soluble microbial products (SMP) when activated sludge was under toxic stress condition of phenol. Two parallel sequencing batch reactors, one with air and the other with pure oxygen aeration, were used to...
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.)...
Development of Bacterial consortia from traditional lime mortar for the preparation of sustainable and strength-enhanced concrete: A solution for heavy metal toxic concrete
Environmental Management and Policies
The microbial consortia incorporated in bio concrete should have traits such as high alkali resistance and the ability to form endospores to overcome the mechanical and chemical stresses produced during concrete preparation. The primary intent of our work is to segregate and identify the calcium...
Applications of FTIR spectroscopy in environmental studies supported by two dimensional correlation analysis
General
In this paper, we report the joint use of FTIR spectroscopy and two dimensional correlation analysis (2DCORR) applied to the identification of the aggregation pathways of natural organic matter (i.e. humic substance) extracted from marine sediments and in the second case of study, to the comparison...
Short-chain chlorinated paraffins in biota – levels and effects
General
Short-chain chlorinated paraffins (SCCPs) are highly complex technical mixtures of polychlorinated n-alkanes with carbon-chain lengths from C10-C13 and chlorine content between 49 and 70%. They are produced by chlorination of n-alkanes and do not occur naturally. Because of their physical properties...
The Bioremoval of Toxic Dyes Using Chlorella Algae in Airlift Bioreactor
Water treatment
Malachite green (MG) and Crystal Violet (CV) are used mainly as dyestuff and antimicrobials in aquaculture. They have a severe toxic effect on the environment. Several techniques were used to remove impurities from an aqueous solution: chemical, physical, and electrical. Among all these techniques...
Concentrations of selected toxic elements in airborne particulates of Patras, Greece
General
The Mn and Pb of the total suspended particulates (TSP) in totally 95 1-h samples and As, Cd, Mn, Ni and Pb in totally 29 24-h samples have been determined by flameless graphite furnace atomic absorption spectrophotometry. The monthly TSP for July 1992 contained Mn and Pb 0.033 and 1.25‰ in downtown...
Thematic areas
Circular economy
Climate change and air pollution
Solid waste management
Water and wastewater
Climatic Influence on Solar Saltpans with specific reference to Thoothukudi District
Climate change mitigation...
24-07-2024
Analysis of the performance, combustion and emission of Hydrogen Induction in a CRDI engine
Climate change mitigation...
24-07-2024
Do Technological Innovation and Environmental Regulation Reduce Carbon Dioxide Emissions? Evidence from China
Ecology, environmental change...
24-07-2024
Strength and Durability Studies on Concrete using Cashew Nut Shell Ash (CNSA) waste as Supplementary Materials
Solid Waste Management
17-07-2024
Research on Regional Carbon Emission Policy and Breakthrough Green Technology Innovation Pathways: Based on the Perspective of New Quality Productivity
Ecology, environmental change...
17-07-2024
Phytogenic aqueous extract mediated fabrication of Ag-Fe2O3 nanohybrids for detoxification of carcinogenic Congo Red dye: An Environmental Remediation approach
Water treatment
17-07-2024
Anthropogenic Influence and Climate Change on Water and Nutrient Dynamics in the Kebir-Rhumel Basin, (Northeastern Algeria)
Water Quality
15-07-2024
Green Synthesis of Silver based Nanocomposites using Indigenous Plant Waste and their Lab Scale Application for Targeted Environmental Remediation
Biowaste
15-07-2024
A Review of Life Cycle Assessment of Nanomaterials-Based Adsorbent for Environmental Remediation
Life cycle analysis...
15-07-2024
Numerical and experimental analyses for performance and emissions assessment of a four-stroke engine powered by oleic acid methyl ester biofuel made from waste frying oil
Sustainable Energy
22-08-2024
Enhancing seafood processing wastewater treament efficiency of an anaerobic membrane bioreactor (AnMBR) system: a comparision of post-treatment methods
Water and Wastewater...
22-08-2024
Experimental study on effective utilization of industrial solid wastes in developing Ultra-High Performance Geopolymer Concrete
Circular economy
17-08-2024
Strength Properties Evaluation of Composite Blocks Incorporated With Acacia Nilotica Ash
Solid Waste Management
17-08-2024
AN OVERVIEW OF GREEN ENERGY SOURCES, ENHANCING THE ENVIRONMENTAL AND ECONOMIC ELEMENTS OF THE WORLD'S SUSTAINABILITY
Sustainable Energy
17-08-2024
Analysis of the effect of digital financial inclusion on agricultural carbon emissions in China
Ecology, environmental change...
17-08-2024
Development of an Air Quality Forecasting System Using a Multimodal Deep Learning Framework Based on Satellite Images of Delhi City
Air Quality
17-08-2024
An Experimental Assessment of the Performance of Solar Panels Using Efficiency Enhancement Techniques in India's Tropical Region
Sustainable Energy
10-08-2024
The Bioremoval of Toxic Dyes Using Chlorella Algae in Airlift Bioreactor
Water treatment
10-08-2024