The facile synthesis of the advanced cobalt-based materials [1.0Co/Al2O3 (A), 0.5Co/Al2O3 (B), 3.5CoNaY (C) and 0.4CoHY (D)] is reported. The characterization of the materials was carried out by X-ray photoelectronic, energy-dispersive X-ray, atomic absorption and low-temperature nitrogen adsorption methods. These materials were used for a comparative degradative and adsorptive removal of carmoisine

Microbial electrolysis cells (MECs) have rapidly evolved as a promising technology to produce hydrogen from organic sources through anodic and cathodic electrochemical reactions. The MEC cathode has a rate-limiting effect on the hydrogen evolution reaction (HER) that necessitated the usage of expensive metal catalysts. Biocathode defined as microorganisms attached to the cathode is a promising alternative

The study was performed to investigate the impact of gold mine, which has been operated near the district of Fatsa (Turkey) where 10% of the world hazelnut production is performed. Within the scope of the study, sediment samples were collected from 29 locations throughout Fatsa, especially around the gold mine. The samples were analyzed through multi-statistical approaches together with the sediment

In this study, a biopolymer-based adsorptive membrane was designed for simultaneous removal of differently charged heavy metals from water. Polylactic acid (PLA)/hydroxyapatite (HAp) adsorptive membranes with various content of HAp were fabricated using the non-solvent induced phase separation method. The effect of incorporating different weight content of HAp ranging from 0 to 3.0 wt% was studied

In the present study, the ability of four different adsorbents (raw sawdust, raw olive pomace and their derived biochars obtained after pyrolysis) to remove Cu(II) from water was investigated. The derived biochars were prepared using the traditional process of earth mound kilns at a temperature close to 300 °C. The influence of solid charge, contact time, pH, and concentration was studied. The adsorption

Acid mine drainage (AMD) is the biggest environmental problem of water related to the mining industry in many countries. Recently, coal mining and mineral mining industries use various AMD treatment systems. The main problem, however, is the very expensive and long retention times for treatment of AMD. For this reason, biosorption technology has been tested recently as a promising method for AMD treatment

The internal flow of the mini pumps for washing machines is complex due to its compact structure and it normally adopts the upper drainage method. Due to decline in liquid level at the end of drainage (empty discharge period), the pump experiences water–air multiphase flow condition and produces unsteady flow. This unstable flow not only results in the deterioration of pump energy performance, but

Innovation in design and fabrication of energy storage materials has triggered a swift development in capacitive materials. In this regard, two-dimensional grapheme-based spinal metal oxide nanocomposites exhibit quite substantial capacitive potential. Moreover, heteroatom-incorporated graphene nanocomposites improvise the electronic significance of conducive materials. For purpose, copper chromite

This study investigates the potential of a blended binder formulated from two industrial solid wastes viz. phosphogypsum and fly ash in combination with lime. Three mix proportions of phosphogypsum and fly ash were investigated, and the minimum lime contents required for activation were determined using the Eades and Grim pH test. The lime-fly ash-phosphogypsum blends were then cast into cubes, both

Various landslide susceptibility models can be available in the literature, and each model has its unique advantages and limitations. Previous studies have shown that no single model performs best across diverse geoenvironmental conditions. To seek better prediction accuracy and reliability, this study proposes three different ensemble methods to take advantage of multiple landslide susceptibility

In this study, the performances of three commonly used greenhouse shapes even-span, uneven-span, and elliptic are compared in the climatic conditions of Marrakech, Morocco. The dimensions (length, width, and height) of the greenhouse types are kept the same. A mathematical model for computing the total hourly solar irradiation gained by each greenhouse shape during the whole year was developed for

Simultaneous investigation of kerf quality and fume emissions during laser cutting process is essential to achieve efficient and hygienic cutting process. In this study, an experimental investigation on process factors of CO2 laser cutting (CLC) of polyvinyl chloride (PVC) sheets has been carried out followed by an optimization study to enhance the kerf geometry and reduce the emitted harmful fumes

Hamburger seed coat is a readily available agricultural waste product generated in large quantities annually. In this study, activated charcoal was produced using hamburger seed coat activated with zinc chloride and its physicochemical properties such as fixed carbon, specific surface area, volatile matter, ash and moisture content were investigated. Scanning electron microscopy and Fourier transform

A study of aerosol dispersion was conducted in a university classroom using a CO2 tracer gas emitted from three source locations in a steady release, one source location per test. The tracer gas emitted from the single source location represented the potentially infectious aerosol droplets emitted from a single student and was thus a way to examine the influence of one sick student on the rest of the

Environmental factors such as temperature and relative humidity can affect the inactivation and transmission of coronaviruses. By reviewing medical experiments on virus survival and virus transmission between infected and susceptible species in different temperature and humidity conditions, this study explores the influence of temperature and relative humidity on the survival and transmission of viruses

In the context of climate change-induced nutrient enrichment, followed by rigorous spread of water hyacinth (Eichhornia crassipes), a mitigation strategy was envisaged to convert the substrate into biochar and biofuel. Lignocellulosic compositional analyses were performed, and the pretreatment of the substrate was done with a concentration of 0.1% of hydrogen peroxide at two varying pH (4 and 11.5)

The aim of this study was to evaluate possible sources, toxicity and human health risk via inhalation of particulate matter (PM10) bound polycyclic aromatic hydrocarbons (PAHs). During November 2013–January 2014, 54 PM10 samples were collected from a tropical city of north-west India and analysed for sixteen priority PAHs (∑16PAHs). The concentration of ∑16PAHs ranged between 18 and 164 ng m−3 with

Multiple-use management of spatially heterogeneous arid ecosystems faces many challenges. In this study, an approach is introduced for multiple-use management of arid ecosystems in Esfandaqeh rangelands, south east of Iran. The ecological, social, and economic values of plant species were, respectively, determined using field data, the number of people consumption, and the market price for a given

The paper presents the results of studies on ashes produced from burning wood biomass in closed wood-fired furnaces, in individual household furnaces (Silesian Province, Poland). Dry sieve analysis and detailed granulometric analysis were performed with the Analysette 22 Micro Tec plus analyser. Content of the basic elements (Al, Si, P, Na, K, Mg, Ca, Fe) and potentially toxic elements (As, Pb, Cd

The widespread use of bisphenol A (BPA), a plastic additive, is becoming a troubling trend due to its harmful effects on the environment. To date, graphene-based materials (GBMs) have piqued interest among researchers in the detection and remediation of BPA attributed to their salient properties of having large surface area, high conductivity, high functionalities, etc. Recent progress in GBMs has

E-waste is the globally mounting solid waste stream which is increasing due to domestic as well as a result of transboundary exportation. This solid waste stream is considered as an amalgam of valuable and toxic material which is concern of environmental and human health risks. To accomplish successful management of electronic equipment after post-consumer stage, numerous lucid initiatives have been

Coconut shell is a bio-waste, and its availability is high to waste in the coastal region of Karnataka, India. The present study focused on using coconut shell biochar modified with ferric chloride to enhance the sludge dewaterability, and it is evaluated experimentally (Capillary suction time, moisture content, settleability, zeta potential, heavy metals, and phosphate). Further, scanning electron

Industrial sectors are main responsible for continually releasing of harmful compounds in the form of wastewater. The potential utilization of bio-waste materials has received great attention to minimize the serious environmental issues. Therefore, the present research is focused to develop an Elaeis guineensis/polyvinyl alcohol/carbon nanotube (EG/PVA/CNT) composite via a simple polymerization method

Coke oven gas (COG) is used to generate energy for the iron-making process by burning; however, from an environmental point of view, it can be converted to methanol (MeOH) for effective utilization. This study designs a large-scale process for the MeOH production from COG based on the validated kinetic studies and performs a life cycle assessment (LCA) of the proposed process. The LCA results are compared

Antibiotics are widely used in human society and are consequently found in sewage treatment plants. However, information regarding the fate of antibiotics in decentralised sewage treatment plants is limited. Therefore, this study monitored and compared four frequently prescribed antibiotics (ampicillin, ciprofloxacin, erythromycin and sulfamethoxazole) in each stage of four conventional treatment plants

Over the years, many organizations across the globe have conducted various studies pertaining to air pollution and its ill effects. The results of these studies substantially conclude that a plethora of people succumbs to the adversities caused by the ever-increasing air pollutants. In this investigation, M5P, random forest (RF)- and Gaussian process (GP)-based approaches are used to predict the tropospheric

This study estimates the potential source regions contributing to PM2.5 in the capital city of Thimphu, Bhutan, during the years 2018-2020 using the ground-based data, followed by the HYSPLIT back trajectory analysis. The average PM2.5 concentration in the entire study period was 32.47 µg/m3 which is three times of the World Health Organization recommended limit of 10 µg/m3. Less than half of the days

A correction to this paper has been published: https://doi.org/10.1007/s13762-021-03194-5.

The cheese whey generation has become an environmental concern due to high levels of pollutants that can significantly impact on the ecosystem. Microalgae are known to eliminate nutrients/contaminants from wastewater, such as nitrogen, phosphorous, carbon and among others. The current work aims to evaluate dairy wastewater (such as cheese whey) treatment using Chlorella vulgaris. Several concentrations

Lowlands hold important potential for sustainable agriculture in South Sumatra. High acidity of soil and water and practice of domestic waste disposal in the area could be associated with a higher level of micro minerals in forages and grazing animals. This study aimed to evaluate the concentration of copper (Cu), manganese (Mn), zinc (Zn), iron (Fe), lead (Pb), and cadmium (Cd) in the water, forage

Flood-control infrastructures—channelization, levees, and dams—are considered as the flood mitigation which can control flood disturbances of rivers. However, the flood mitigation, which is deemed as a rigid and one-dimensional approach, not only increases the frequency and severity of floods but also destroys the ecological and societal aspects of rivers. The Kan River, in Tehran, is one of the rivers

Contamination of groundwater sources due to the presence of chromium ions, a heavy metal, and the detrimental impact of it on the health of consumers have become a serious global concern. The present study was designed to understand the effects of three process variables, namely feed chromium concentration, feed pH and pressure, on chromium removal and permeate flux, by employing response surface methodology

This paper aims to assess the potential of the composted sugarcane pressmud, as a reactive material for lead and zinc, comparing its adsorption, desorption, bioaccessibility, and cost/efficiency with more traditionally studied low-cost adsorbents for potentially toxic metals. For this, sugarcane pressmud, peat, zeolite clinoptilolite, and zeolite clinoptilolite enrichment with sodium were investigated

The synthesis and structural characterisation (Fourier transform infrared, FTIR spectrometry, scanning electron microscopy, SEM and energy-dispersive X-ray, EDX) of amino-modified silicates (unloaded L1, and aspirin-loaded, L2) are reported. The optimal conditions for the extraction of aspirin from water by the modified silicate material were determined as a function of the mass of the extracting agent

This paper focused on the synthesis of Fe3O4@NiO core–shell magnetic nanoparticles for the highly efficient removal of Alizarin red S dye from contaminated effluent. The physicochemical properties of as-synthesized nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, vibrating sample magnetometer, transmission electron microscopy, N2 adsorption–desorption, and Fourier

The pollutants have become ubiquitous in the total environment (water, soil and air) due to human activities and they are hazardous to all forms of life on the earth. This problem has made scientists focus on mitigating or complete reduction in pollutants by several means. Microorganism and plants are known to scavenge pollutants. Both are studied enormously in reducing, refining, and removing pollutants

The study aims to determine Cu(II) adsorption from wastewater in the laboratory condition using modified sewage sludge ash as adsorbent which was obtained from a thermal drying and incineration facility. This procedure was completed with an inexpensive pollutant material which has high metal-binding capacity and is available in abundant amounts. During experiments, the effects of particle size, pH

Atenolol is a β-blocker considered to be an emerging contaminant due to its potential risk to aquatic ecosystems and human health. The removal of atenolol from water was studied using pumice stone, an amorphous, porous, and low-cost adsorbent. The adsorption process was evaluated in ultrapure water by kinetic, pH, and isotherm batch assays; the matrix effect of wastewater and desorption using ultrapure

In the era of technological advancement, the biggest challenge before us is to achieve and maintain the sustainable growth of the environment from pollution of freshwater. In this context, efficient and sustainable photocatalysis approach can play very imperative role. In the current review, we have focused our study on green ZnO for dye degradation from water via photocatalysis. From the quality literature

Quaternary sediments of the Haji Arab River catchment located in Qazvin Plain, northwestern Iran, were studied in terms of sedimentology and geochemistry to determine the sedimentary environment and rock weathering. Discrimination diagrams show that the source rock of these sediments is granite and their tectonic setting is the active continental margin. These rocks show a negative Eu anomaly and a

The concept of urban resilience has drawn more attention in recent years, especially in terms of urban planning. This concept is particularly highlighted when a city or community encounters threats such as natural hazards and rapid population growth. To respond to these threats, a comprehensive resilience assessment is required to identify priority areas for disaster risk management. Resilience is

During the tanning step, 30–40% of trivalent chromium remains in the solid and liquid wastes, generating highly polluted sewage. In this study, powdered marble was used as a low-cost adsorbent to remove trivalent chromium from a synthetic solution and a real tanning effluent. Batch adsorption experiments on powdered marble were performed. After incubation, samples were filtered and the uptake of chromium

Stretchable electronics is a new innovation and becoming popular in various fields, especially in the healthcare sector. Since stretchable electronics use less printed circuit boards (PCBs), it is expected that the environmental performance of a stretchable electronics-based device is better than a rigid electronics-based device that provides the same functionalities. Yet, such a study is rarely available

This review showcases a comprehensive analysis of studies that highlight the different conversion procedures attempted across the globe. The resources of biogas production along with treatment methods are presented. The effect of different governing parameters like feedstock types, pretreatment approaches, process development, and yield to enhance the biogas productivity is highlighted. Biogas applications

Population growth and industrial development have resulted in the physical development of cities and transformation of land use, especially in the areas surrounding the City. Reviewing these changes and predicting urban growth through modelling can help environmental managers in making more informed decisions. The purpose of this research was to simulate the expansion of urbanization and also its prediction

Coastal sediments are considered to be final receptacles for organic and inorganic contaminants. Characterizing those sediments and assessing their biodegradation potential have become a great challenge in recent years. In this study, the chemical composition, including the content in polycyclic aromatic hydrocarbons, the microbial community abundance and diversity (using culture-independent approaches

Intensive agriculture requires the use of several phytosanitary products. Pesticides of the carbamate family are used to eliminate the crop pests by acting on their nervous system. This study aims to determine the kinetic degradation of Zectran, the 4-(dimethylamino)-3,5-dimethylphenyl N-methylcarbamate (20 mg L−1) using 60Co gamma radiation source. The absorbed doses were analyzed by Liquid Chromatography

In this study, soil and total suspended particles samples (TSP) were collected from different soil layers in four functional areas of Urumqi City, Northwest China, and electric heating plate digestion and inductively coupled plasma-optical emission spectrometry (ICP-OES) were used to determine the mass fractions and spatial distribution of six heavy metals. The aim was to determine the effects of human

This study investigates the effects of increasing real energy prices on technical environmental efficiency in Iran using a directional distance function. To achieve this purpose, six variables are used, namely labor, capital stock, energy consumption, real energy price, industrial value added, and environmental cost index, for the period 2009–2015. Moreover, two indexes for industrial environmental

Algeria’s energy demands are tremendously growing, and on the African continent it ranks among the countries with the highest energy consumption. To counter its growing energy demand, the country is progressively adopting renewable energy technologies, although conventional energy technologies still play a central role in its electricity production. The huge solar energy potential in Algeria can be

Due to the growing quantities of numerous toxic and dangerous pollutants, wastewater has created increasing risks. Adsorption is extensively implemented for various wastewater remediation processes owing to its facility, reasonable treatment quality, capable of a large range of adsorbents, and low-cost. Therefore, the in situ polymerization method was successfully used via the reaction of pyromellitic

NOx emission in iron and steel enterprises mainly comes from sintering flue gas. Traditional artificial neural networks cannot meet the requirements of computational accuracy and convergence speed. In order to reduce and predict NOx emission, back propagation neural network model and radial basis function neural network model were established to predict the NOx in sintering flue gas. On this basis

Wetlands play an important role in the life of the planet. In order to preserve and revive the wetlands, decision-makers need to employ appropriate approaches and tools to identify the main driving forces and this could be an important step toward adopting effective strategies and making critical decisions. The current study used the combined analytic network process with driving forces-pressures-

Today’s information-rich world has become more flexible, and its development trusts upon green technologies. Due to rise in demand for proficient transmission of worldwide information and communication, a portable podium is required. Small electronic devices such as portable computers, mobile phones and other electronic devices serve as encouraging entrants that have endorsed the swift progression