One of the key issues in managing water and energy systems is to incorporate the links between these systems to ensure security of resources. In this research, using system dynamics (SD) approach for simulating water–energy (WE) nexus, SD-WE model was developed for 16 sub-basins of Gavkhuni basin in central Iran. Various water- and energy-saving policies were simulated and their effectiveness in improving

Biochar-immobilized potassium nickel hexacyanoferrate (KNiFC) as a sorbent for removal of radioactive cesium (Cs) from aqueous solutions was prepared using a novel method. Japanese cedar sawdust loaded with NiSO4 using a ball mill was carbonized at various temperatures. The resultant Ni-loaded biochar was immersed in a K4[Fe(CN)6]·3H2O solution, and biochar-immobilized KNiFC was obtained. For comparison

The present work deals with the production of liquid emulsion membrane (LEM) accomplished by applying hydrodynamic cavitation-based process for the extraction of Chromium(VI) from wastewater. Aliquat 336 was used as the carrier during membrane transport. Diesel and Span 80 were used as diluent and emulsifier, respectively. NaOH (as a stripping agent in the internal phase) was used in emulsion preparation

Contamination of water sources by contaminants of emerging concerns, including pharmaceutical compounds, threatens the well-being of human who relies on the water sources. Development of cost-effective adsorbents for maximum removal of these contaminants is important to ensure clean and safe water access. This study demonstrates the reusability of activated carbon synthesized from spent tea leaves

Knowledge of the impacts of sex on plant mortality and biomass production has scientific and practical importance. In the case of willows, we know relatively little about such effects. The main objective of this study was to evaluate whether the sex of individuals of different willow species determines their biomass and mortality. An additional goal was to determine whether the secondary sex characteristics

Bedrock aquifers are vulnerable to contamination due to the preferential movement of pollutants via rock discontinuities and porous layers. In this research, we propose an approach to assess vulnerability in three dimensions by combining stable isotope values and particle tracking in a vertically anisotropic aquifer of basaltic-fluvial origin at the basin-scale. A steady-state flow and particle tracking

Dried duckweed-Lm aquatic plant was subjected to molecular modifications using quantum mechanical calculations. The molecular modeling simulates aquatic weed as a composite of cellulose/lignin/glycine. This model suggests the ability to remove inorganic pollutants from wastewater according to unique hydrogen bonding and high total dipole moment. For verifications, experimental efforts are performed

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The aim of this study was to determine the influence of sewage water irrigation on chromium (Cr) accumulation in soil and forage species and to assess the health risk of grazing livestock via forage consumption. The experimental design of the research and all experiments were done in Sargodha University Botanical Department. Measurement of Cr in water samples and soil and plant samples prepared for

Exogenous DOM (dissolved organic matter) plays an important role in the co-migration of organic pollutants, which controlled by many factors. To evaluate the effect of DOM on contaminants migration and reveal the controlling factors, batch sorption experiment was conducted with carbamazepine (CBZ) and sulfamethoxazole (SMX) as two typical pollutants and montmorillonite as medium. Use humic acid to

This paper investigates the potential use of anthracite coal to remove Fe, Mn, UV254, and colour from pre-ozonated groundwater using batch experiment studies. Pre-ozonated groundwater samples were prepared in a laboratory to present the actual characteristics of groundwater samples. General characteristics for anthracite, as well as for groundwater samples, were examined. The influences of anthracite

The accessibility of clean water and green environment are the major requirements for survival and sustainable development. In this study, iron-coated sand, derived from acid mine drainage effluent, has been applied as a heterogeneous catalyst. Treatment with H2O2, iron-coated sand, and iron-coated sand-Fenton processes is compared for the COD removals from municipal wastewater effluent. The results

In this study, the impact of MSW landfill on the surface and groundwater resources pollution in Tehran Province was investigated using a multivariate statistical technique concerning multiple water quality indicators. To assess the role of the landfill on surface and groundwater pollution, a statistical approach was designed in a way that the distance from landfill was considered as the main factor

Vegetative filter strips (VFSs) have been recommended as the best management practice for reducing runoff nonpoint source (NPS) pollution. The efficiency of VFSs located adjacent to water bodies can vary with shallow water table depths (WTD). A vegetated soil tank containing silt loam soil and Shortleaf Lilyturf vegetation was designed to study the effects of VFSs under shallow WTD (0.08, 0.22, and

The remediation of metal(loid) contaminated sites often requires the application of an amendment, such as biochar. Biochar is the product of biomass pyrolysis and has been shown to reduce soil acidity, immobilize metal(loid)s and thus ameliorate plant growth. The beneficial effects of biochar are usually higher at a higher dose. However, an excessive dose can have negative outcomes due to nutrient

Dye pollution has become a major threat to the environment. Advanced oxidation processes (AOPs) are widely used in dye wastewater treatment, and the selection of catalyst is of great significance. In this study, a novel composite material OMS-2/hyphae was prepared through self-assembly technique. Mycelium pellets of carrier material were prepared using a waste biomass resource as the medium of Aspergillus

Nano-sized TiO2 particles containing anatase and rutile were applied to arsenic removal from water in natural groundwater conditions in the batch and column experiments. Arsenic concentrations were 200 µg L−1 and the pH range was 6–8.5 (similar to groundwater conditions). The results showed that anatase and rutile could adsorb 95.5% and 63.5% of arsenic in a solution after 60 min, respectively. In

The association between environmental conditions and pregnancy outcome has been under investigation for a long time, but results appear to be inconclusive regarding damage to either the newborn or the mother. The aim of this study was to evaluate the distribution of hospitalization of newborns with low birthweight (< 2500 g) and extremely low birthweight (< 1000 g) in the geographical area of Taranto

This paper presents an optimization approach for designing water allocation systems at macroscopic level under water scarcity conditions. The proposed approach accounts for the proper water distribution of the available sources (dams, deep wells, lakes, rivers, etc.) and the incorporation of artificial sources (rainwater harvesting systems, and recycled water) to satisfy domestic and agricultural demands

The effective treatment of dyeing wastewater has been considered as one of the challenges. The sulfate radical (SO4•−)-based technology exhibited great potential in the field of organic wastewater treatment. In this study, copper oxide was synthesized and used to activate persulfate (PS) for removing methylene blue (MB) from aqueous solution. The effects of reaction parameters and coexisting substances

The aim of this study was to assess the impact of ventilation and filtration conditions on particle concentrations in an orthopedic operating room. Total particle, viable particle, and CO2 concentration were measured under three different situations, namely before air filter replacement, after air filter replacement, and in an operating room with a new air conditioning system. Before air filter replacement

Life-cycle assessment (LCA) is increasingly used in aquaculture studies to quantitatively assess materials, energy flows and impacts of a production system and to evaluate the environmental performance of products and services. The application of LCA to sea bass production in two marine farms located in Greece and Albania demonstrated that feed and accordingly feed conversion ratio, followed by fry

This study aimed at profiling the quantitative phytochemicals in different parts of juvenile C. aurantium cultivated on different plastic-treated clayey soils in a pot experiment under ambient field condition. Three plastic types, namely polyethylene (LDPE), polypropylene (PP) and polystyrene (PS) with seven treatment pattern (single LDPE, PP, PS and mixture: LDPE + PP, LDPE + PS, PP + PS, LDPE + PP + PS)

Nylon 6-mordenite composite membranes having porous morphology were applied to the selective separation of heavy metal ions from aqueous heavy metal solution with Pb2+, Cu2+ and Cd2+. The membrane preparation was carried out in the wet phase inversion method using methanol/CaCl2/Nylon 6 solution. The resultant membranes containing mordenite powders with 10, 20 and 30 wt% loading were obtained as coagulated

Crop diversification led to a decline in the partial sustainability index of chemical fertilizers consumption. Crop diversification reduces the multiple sustainability indices of fertilizers and water resources as well as fertilizers, pesticides and water resources consumption. Crop diversification positively related to partial and multiple productivity of fertilizers, chemical pesticides and water

A pot experiment was conducted to observe the impact of the application of various fertilizers on the availability of trace metals in different parts of a pearl millet variety (YBS–98). The level of metals in the pearl millet plant (root, shoot, and grains) was analyzed by the atomic absorption spectrophotometer (AA–6300 Shimadzu Japan). Comparing different parts of millet plant Cu (3.4–4.5), Fe (62

Life is impossible without water because demands of water increasing day by day with emergent population. By increasing the quantity of wastewater, sewage and chemicals containing effluent into the river system from household and industrial activities, the surface and ground water get significantly polluted. In present study, eleven organo-chlorine pesticides (OCPs), sixteen polycyclic aromatic hydrocarbons

In the present study, Aspergillus fumigatus (Genbank accession no. KX365202), was used for heavy metal removal in a hexa-metal system containing mixture of six heavy metals (Cu, Cr, Cd, Ni, Pb and Zn). The total concentration of the heavy metals was kept at 30 mg L−1. The experimental sets were designed based on the relative abundance of the heavy metals present in the wastewater of Delhi-NCR region

Agriculture is the main source of diffuse nutrient pollution in surface waters. It requires best management practices (BMPs) for controlling the discharges of pollutants like total nitrogen (TN) and total phosphorous (TP). In addition, these pollutants are accounted in the grey water footprint (GWF) of agricultural productions. This study proposes an integrated methodology with two steps for assessing

Contamination from microplastics is a growing concern around the globe that materialized over the last few decades. Road dust is one of the main contributors of microplastics in an urban environment and presence of microplastics can be a major detriment to health of urban population. The present study focuses on the presence, quantification, and identification of microplastics in the ambient air. Coarse

Over the past few decades, industrial development has caused a dramatic increment in greenhouse gas (GHG) emissions, as a leading cause of climate change. Modifying the industrial plants' environmental performance is the main pillar of improving efficiency that can reduce the waste of resources and make achieving lower-cost global emission reduction targets of the Kyoto protocol's clean development

The role of environmental proactivity to explain the relationship between the stakeholder pressure and environmental strategy of wineries, both at process and product levels, is analyzed. We have applied a model of structural equations to a sample of 312 Spanish wineries. Consistent with prior research, the findings show a positive relationship betweenstakeholder pressure and the implementation of

The current work reports the synthesis of Fe-doped TiO2 nanoparticles by simple coprecipitation method and compares their photocatalytic efficiency to three different commercially available TiO2 (i.e., Sachtopore, Hombikat UV100 and Fluka) using methyl orange (MO) under UV light irradiation. X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS) and transmission electron microscopy (TEM) were

Gökpınar spring is one of the most important drinking water resources of Denizli city (Turkey), covering more than one third of the water need of the municipality. In this paper, we present a combination of geophysical methods in order to define the groundwater flow paths in Gökpınar spring region. The spring of Gökpınar is a result of the Fault-fracture network formed during the tectonic events which

The soil above on a cave may act as a regulator of the changes occurring in and on the cavity, modifying water infiltration and retention and providing organic matter, clay minerals, and nutrient elements, all of them essential for the growth of microorganisms and precipitates inside the cave. We assessed the mineralogical and geochemical composition of the soil lying upon Nerja Cave (Málaga, S Spain)

AbstractAdsorption potential of the struvite (recovered from the high-strength ammonium-rich synthetic wastewater) was explored for the first time for the removal of an anthraquinone dye (Remazol Brilliant Blue R, RBBR) from aqueous phases. According to the experimental findings obtained from the RBBR-struvite adsorption system, the maximum dye removal efficiency (≈ 79%) was achieved at pH of 2.0,

Two prominent models emerged as a result of intense interdisciplinary discussions on the environmental health paradigm, called the “exposome” concept and the “adverse outcome pathway” (AOP) concept that links a molecular initiating event to the adverse outcome via key events. Here, evidence is discussed, suggesting that environmental stress/injury-induced damage-associated molecular patterns (DAMPs)

Effluent of slaughterhouse wastewater treatment by combined up-flow anaerobic sludge blanket (UASB) reactor and extended aeration reactor was estimated through artificial neural networks (ANN), ANN-genetic algorithm (GA) and B-spline quasi interpolation. The overall system operated at two runs with average total chemical oxygen demand (TCOD) of 1514.65 and 3160.2 mg/L for the first and second run,

In this study, aerogel beads composed of graphene oxide and chitosan (GOCA beads) were synthesized and then characterized by SEM, TEM, FT-IR, and BET techniques. The prepared adsorbent was used for the removal of 4-nonylphenol (4-NP) from surface water and municipal wastewater effluent. The adsorption behavior of the nanocomposite was investigated using batch experiments by evaluating the effect of

Many of the basic dyes are non- degradable and toxic pollutants in textile industrial wastewater. Methylene blue (MB) is a cationic dye that exists at a large scale in the textile wastewater which is discharged into the nearby environment without proper management, particularly in developing countries including Ethiopia. Therefore, this study aimed to evaluate the adsorption performance of MB from

This research aims at process optimization using response surface methodology (RSM) for coagulation of surface water by coagulants extracted from natural product. Apricot seeds extract (ASE), peach seeds extract (PSE) and mango seeds extract (MSE) were evaluated. The optimum operating conditions for ASE and PSE at initial turbidity of 27.5 NTU were pH 7 and coagulant dose of 45 mg/l. However, the optimum

Landfills are the main option for waste disposal all over the world. Most of the landfill sites across the world are old and are not engineered well to prevent contamination of the underlying soil and groundwater by the toxic leachate. The present study examines the potential use of raw zeolite and heated activated zeolite in the reduction of COD, NH3-N, and colour from leachate. Zeolite was activated

Current work deals with the treatment of leachate nanofiltration concentrate which was exposed to ultrafiltration membrane treatment following anaerobic biological process and nitrification–dentrification process before. Advanced electrocoagulation processes [electro-Fenton (EF) and electro-persulfate (EF)] were applied to the wastewater characterized by high inert COD content arising from resistant

In this work, fly ash from a Brazilian thermal power plant was employed as a low-cost raw catalyst for Procion red degradation by photo-Fenton process. The ash was characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), nitrogen adsorption/desorption isotherms (BET), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray

Nitric acid-activated carbon prepared from the barks of Leucaenea leucocephala plant (NACBLL) is investigated as an adsorbent for the extraction of fluoride from contaminated water by varying different physicochemical parameters. The conditions for the maximum possible extraction of fluoride have been optimized. The adsorption capacity of the adsorbent is observed to be 1.16 mg/g. NACBLL is characterized

Dye-sensitized solar cells (DSSC) have been assembled using natural dyes extracted from the red (Gracilaria) and green (Ulva) algae as photosensitizers and the effect of adding Graphene quantum dot (GQD) has been investigated. The open-circuit voltage (VOC) values of natural dyes of Gracilaria, Gracilaria + GQD, Ulva, and Ulva + GQD are 0.64, 0.73, 0.70, and 0.75, respectively. The short circuit current

Inefficient sewage management has caused contamination of our water resources (rivers and lakes) that inspires researchers to constantly innovate and upgrade the existing wastewater treatment technologies. This study explores the possibility of a microbial consortium immobilized on different natural matrix for sewage treatment at lab-scale bioreactor. Bacterial isolates having lipolytic, proteolytic