Industrial activities that consume water generate wastewater as a by-product of processing which introduces various contaminants such as heavy metals into the neighbouring water bodies that creates adverse effects on the surrounding environment. Tannery industry releases more toxic effluent than most industries, which directly and indirectly exerts stress on various ecosystems. The heavy metal chromium

Increase in demand for water for domestic, agricultural and industrial needs has led to overexploitation as well as contamination; hence, it is unremittingly important to monitor and maintain the health of waters. In view of this, a study was carried out wherein a total of 57 groundwater samples from Upper Bhima Basin of western India were collected and analysed for understanding the drinking and agricultural

The main aim of the present study is to determine the optimum operating conditions for different feed compositions with less irreversible membrane fouling in an activated sludge followed by membrane process (AS-MP). In this regard, three different wastewaters with different BOD5/COD ratios (0.83 for soft drink, 0.63 for pineapple fruit juice and 0.36 for amoxicillin) as an index of biodegradability

A study was conducted to evaluate the groundwater quality and health risk assessment for drinking purposes around inactive mining areas in the rural regions of Vemula-Vempalli region using the water quality index (WQI) method. For this study, forty groundwater samples were collected from bore wells and analyzed for physical parameters and major cations and anions followed by standard methods of APHA

The aim of this study was to model and optimize the adsorption of Pb(II) ions from an aqueous solution using Africa elemi seed, mucuna shell and oyster shell modified with orthophosphorous acid used as adsorbents. The influence of operational parameters such as adsorbent dosage, initial pH and contact time was evaluated by response surface methodology (RSM). The interactions between the operational

The Government of Tanzania is struggling to implement water projects throughout the country to ensure that 90% of the population has access to clean and safe drinking water by 2025. While most of the community-based water projects fail to deliver as expected, participatory monitoring and evaluation (PM&E), critical for projects’ achievement, is at an infancy stage. This article determines effectiveness

Tanneries are the major contributors to chromium pollution of the environment. Exposure to chromium (VI) can cause cancer, brain damage, central nervous dysfunction, blood composition damage; damage of lungs, kidneys, liver, and other vital organs. Although various studies have been done on the removal of Cr (VI) from synthetic wastewater, there is a lack of study in the adaptability of these methods

In this study, the scales of Micropogonias undulatus fish were investigated as precursors for the development of low-cost biosorbent for the removal of Pb(II) and Zn(II) from aqueous media. The biosorbent was characterised using Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and X-ray diffractometry (XRD). Adsorption parameters (temperature, biosorbent dosage and

Characterization of watershed hydrological process is vital for sustainable water resource management. The principal goal of this study was to investigate the inference of drainage attributes on basic hydrological processes using spatial-based morphometric analysis on Tikur Wuha river watershed. The result obtained indicated that the area was characterized with fifth-order stream. Drainage area with

Pollution of freshwater resources is gaining global attention due to increasing freshwater stress and scarcity. This study assessed land use and land cover changes (LULCC) in the Nawuni Catchment of the White Volta Basin and how the change affects water quality in the area. Satellite images from Landsat Thematic Mapper and Landsat 8 Operational land imager of the Nawuni Catchment of the White Volta

Herein, a novel and eco-friendly low-cost adsorbent polyacrylamide-grafted Actinidia deliciosa (Kiwi fruit) peels powder (PGADP) was synthesized and utilized as a potential adsorbent for the sequestration of crystal violet (CV) dye from aqueous solution. The material was characterized by various analytical techniques such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis

Purification of water is a critical and inevitable process at present to avoid the harmful effect of polluted water and to meet the need for safe drinking water to millions of people in the world. Several methods of water purification exist, but the combination of adsorption and filtration is found to be paramount in the water treatment process owing to the cost-effectiveness and efficacy of the process

Trace elements (As, Cr, Cu, Cd, Hg, Fe, Pb, Ni, and Zn) in surface water of Mahanadi River and its tributaries were measured in order to investigate their geospatial metal distribution and extent of contamination. The study was designed to make water quality comparisons with local and global average values. As the river and its contributing tributaries flow through a diverse geologic, topographic,

The natural support capacity (NSC) of water resources is a key aspect of the regional carrying capacity of water resources, and it can reflect the quality and quantity of water resources in a region. This paper aims to evaluate the NSC of water resources using a model based on the principal component analysis (PCA) to benefit the development and utilization of regional water resources. A case study

In recent years, fuzzy logic has emerged as a powerful technique in the analysis of hydrologic components and decision making in water resources. Problems related to hydrology often deal with imprecision and vagueness, which can be very well handled by fuzzy logic-based models. This paper reviews a variety of applications of fuzzy logic in the domain of hydrology and water resources in brief. So far

A detailed ground magnetic survey was carried out in a basement complex underlain Modomo community in southwestern Nigeria with a view to delineating the subsurface structures, estimate the overburden thicknesses and assess the relevance of the geophysical method in groundwater investigation in the locality. The total field component of the earth’s magnetic field was measured at station intervals of

Growing population and climate change are increasing the challenges to the global water situation. Due to a continuous elevating level of pollution, there is the requirement of novel innovative water technologies to ensure the good supply of drinking water. This review is mainly focused on the recent advances in nanotechnology aspects for water and wastewater treatment that include nano-based materials

Groundwater is among the most important resources of water supply of the worldwide population. The objective of this research is to select the most suitable drilling location of new groundwater wells, with a decision-making tool using geographic information system (GIS). The optimum location was evaluated based on the hydro-geoelectrical parameter derived from vertical electrical sounding (VES) including

Research evidence has shown that pollution of surface and underground waters is the leading sources of environmental and health-related problems. Disposed unused therapeutic drugs have been known to contaminate underground water and also offer drug resistance to infection-causing bacterial. This research seeks to evaluate the use of US/PS/Fe3O4 for the removal of ciprofloxacin (CIP-F) from aqueous

Among various environmental pollutants, dyes have been reported to contaminate a large quantity of surface water. Rhodamine B, a widely applicable basic dye, is known for its hazardous impact on environment. The present study proposes the application of readily available waste banana peels for the remediation of water contaminated with Rhodamine B. The potential of prepared material to decontaminate

Heavy metal pollution in groundwater is a substantial environmental risk for Bangladesh. The Meghna Ghat industrial area in Bangladesh becomes a promising site for installing various industries for few decades. It was necessary to assess the heavy metal level in the groundwater of this area, and current study took the initiative. We collected 20 groundwater samples and tested pH, DO, TDS, EC, turbidity

Heavy metals are potential health risk, especially in mining sites where they deteriorate from sulfide-rich ore bodies. Lead, cadmium, arsenic and mercury are very carcinogenic, while others are toxic. The assessment of the levels of these metals in water resources of the lead–zinc mining communities of Enyigba, Mkpuma Akpatakpa, Ameka, Amorie, Amanchara and Alibaruhu was carried out, and the potential

The removal of hazardous dyes has become a major economic and health concern to treat wastewater. In this study, efficient, low-cost, and eco-friendly spent mushroom waste (SMW) showed great potential for removing the anionic dyes, namely Direct Red 5B (DR5B), Direct Black 22 (DB22), Direct Black 71 (DB71), and Reactive Black 5 (RB5). The mechanisms of adsorption could be controlled by both physical

Accurate knowledge of the recharging rate is essential for several groundwater-related studies and projects mainly in the water scarcity regions. In this study, a comparison between different methods of soft computing-based models was obtained in order to evaluate and select the most suitable and accurate method for predicting the recharging rate of groundwater, as the natural recharging rate of the

This study aims to evaluate the treatment of wastewater from dairy plants using the self-purifying power of filamentous cyanobacterium Pseudanabaena galeata. The performance and the reliability of using cyanobacteria as wastewater treatment technique were also assessed based on total bacterial flora, total nitrogen (NK), chemical oxygen demand (COD), and total organic carbon (TOC). The results obtained

Unfortunately, the second author name, funding note and acknowledgment are published incorrectly in the print published article. The correct second author name is Mohamed Bechir Ben Hamida, and the correct funding and acknowledgments are given below.

In this study, the effect of the geometry modification in the physical model (step height) on flow factors in the stilling basin is investigated numerically. The Navier–Stokes equations were used to solve the flow field; the Reynolds stress turbulence model was used to model Reynolds stresses, and the volume of fluid method was used to determine the surface flow profile. Momentum and turbulence equations

Nitrate contamination of groundwater was assessed in the crowded area of Ambohidrapeto, Antananarivo city-Madagascar using hydrochemistry and multivariate analysis. Seventeen dug well waters and three spring waters were collected and measured in the field for physical parameters and in the laboratory for major ions. The results showed that all water samples have nitrate concentration above the standard

The study of landslides in the Inaouene watershed (northeastern Morocco) provides information on the relationships between landslides and morpho-structural analysis. Landslides affect part of the slopes and slopes of the valley. The configuration of this relationship is controlled by the combination of several predisposing factors. Two localities were studied, located in similar morpho-structural contexts

Sediments are carrier and a sink of elements in the hydrological cycle. Monitoring of contaminated soil and sediment with metallic elements is of interest due to their influence on groundwater, surface water, plants, animals and humans. In this study, different sediment samples from five various places were taken, and the elemental concentration along with some physiochemical parameters were determined

Reservoirs provide rural and municipal water supply for various purposes such as drinking water, irrigation, hydropower, industrial purposes and recreational activities. Supplying these demands depends strongly on the dam reservoir capacity. Hence, reservoir storage capacity prediction is a determining factor in water resources planning and management, drought risk management, flood risk assessment

Membrane fouling and temperature polarization are the most common issues that cause limitations to membrane distillation (MD) process. Integration of spacers has been proven to resolve those problems by inducing regions of turbulence and giving the required mechanical support to the membrane. In this work, a robust high-fidelity computational fluid dynamics simulation is carried out to assess and quantify

An integrated study of health risk assessment, pollution indices and cluster analysis has been carried out to assess the pollution and heavy metal sources in the groundwater. Certain elements analyzed exceed the prescribed limits of WHO standard. Health risk index reveals risk of toxicity through oral pathways is less, as almost all trace elements are < 1. The distribution pattern of heavy metal pollution

This study investigates the sorption of a non-steroidal anti-inflammatory drug, ibuprofen, (IBP) using acid activated carbon prepared from orange peel (OPA). OPA was characterized via the use of Fourier transform infrared and scanning electron microscopy techniques. Four isotherm models were utilized to assess the adsorption data: Langmuir, Freundlich, Temkin, and Dubinin–Raduskevich, respectively

The desorption characteristics of previously adsorbed hexavalent chromium [Cr(VI)] and divalent lead [Pb(II)] ions on groundnut husk were tested by various desorption eluents such as tap water, de-ionized water, NaOH, HCl and H2SO4. Among them, HCl and H2SO4 were chosen as the best desorbing agents for Cr(VI) and Pb(II) ions, respectively, due to their high desorption efficiency. The desorption efficiency

The use of 90° elbows upstream of a pump inlet can distort the approach flow resulting in spatial and temporal velocity variations and swirling flow that negatively affect pump performance and increase maintenance requirements. In order to attend these flow conditions, pumps have to be installed according to generally accepted standards such as ANSI/HI 9.8. (American national standard for rotodynamic

The present study focused on the hydrochemistry of groundwater in Kerzaz and Beni Abbes in Saoura oases (southwest of Algeria) to assess the quality of groundwater for determining its suitability for drinking and irrigation purposes. The study area experiences a hyper-arid climate characterized by low rainfall 50–100 mm/year and excessive drought. Groundwater samples were collected from 24 locations

In this study, the degradation of crystal violet (CV) was investigated by different oxidation processes; ozone (OZ), peroxone (PO), electrolysis (E), electrolysis/H2O2 (ECP), electroperoxone (EPO), and electrolysis/peroxene/H2O2 (EPOP). Main parameters including contact time, pH, CV concentration, and effect of scavengers were studied. The results showed that all processes were capable of CV decolorization

Industrial wastewater needs to be treated because of the heavy metals presence and their effects on the environment. The aim of this study was to remove heavy metals ions such as copper and zinc from aqueous solutions by using Escherichia coli (E. coli) biofilm which was placed on zeolite. The paper was experimental. Synthetic and real samples were evaluated in laboratory scale. To evaluate the removal

Activated carbons are currently one of the most widely used materials for water and wastewater treatment because of their high specific surface area and moderate cost. This study is about the comparison of different activation methods on the pollution removal efficiency of date seed activated carbon using response surface methodology (RSM). The date seeds were carbonized in a muffle furnace at 300 °C

This study is aimed to predict potential soil erosion in the Langat River Basin, Malaysia by integrating Remote Sensing (RS) and Geographical Information System (GIS) with the Revised Universal Soil Loss Equation (RUSLE) model. In RUSLE model, parameters such as rainfall erosivity factor (R), soil erodibility factor (K), slope length and steepness factor (LS), vegetation cover and management factor

The use of VLF-EM in sedimentary basins has not been fully understood and has not attracted substantial usage in groundwater exploration, specifically in coastal Niger Delta. In the present study, VLF and 2D electrical resistivity imaging (ERI) surveys were combined with hydrogeochemical data to examine groundwater quality. Both interpretations of VLF and 2D ERI uncovered subsurface conductive geologic

The study indicates the viability of geographic information system and remote sensing data for the analysis as well as estimation of the stage and the rate of erosional processes in a Himalayan watershed for improved planning and management. The Gaj watershed lies in the outer Himalayan region of Himachal Pradesh, India, which has been characterized in to nine sub-watersheds for studying the geomorphological

Wet cooling towers (WCT) are widely used to reject the unutilized heat in coal thermal power plants (TPPs). But this comes at the cost of excessive water consumption. Adoption of air-cooled condensers (ACC), also known as dry cooling systems, in all proposed Indian TPPs would reduce their water consumption by 26% in 2030. However, power producers are reluctant to install ACC due to technical and economic

Rice production in the world is heavily dependent on water. Therefore, increasing in water productivity with appropriate irrigation management is necessary. Simulation models that illustrate the effects of water on crop growth can apply to optimize water productivity and improve farm irrigation management. This study was conducted to simulate water productivity of paddy rice using AquaCrop model in

The use of readily available water treatment residuals (WTR) as a low-cost material for removal of colour from real textile wastewater was investigated. WTR was used in three forms, namely in raw wet form as a coagulant, in the dried form as an adsorbent and as a filtration media in column tests. The results showed a maximum colour removal of 55 and 36% by coagulation and adsorption, respectively,

Characterization and prioritization of watersheds has gained importance for proper planning and management of natural resources in sustainable development. Implementation of management practices over a larger area at the same time is inaccessible and uneconomical. So, it has required applying a viable technique for prioritization of critical sub-watersheds. Thus, the present study was aimed to prioritizing

Mamu basin is a major tributary of Anambra drainage basin and a reservoir for wastewater from agricultural and runoff processes within the basin. Water quality of the Mamu basin was evaluated to determine its suitability for potable water and agrarian uses. This study utilized 24 water samples collected during the rainy and dry season from the upstream and downstream segments of the sub basins within

Wastewater treatment and removal of hazardous metals is imperative for the well-being of living things and the environment. Different methods for the removal of hazardous metals have been proposed and practiced with varying success. In this study, dust slag generated by electric arc furnace is utilized for the removal of aluminium, barium and magnesium from industrial effluent. Slag which is a waste

The temporal changes in hydro-geochemistry of groundwater from lithological diversity of Amba Dongar area were assessed from human health risk point of view. In view of this, 104 samples were collected in post- (POM) and pre-monsoon (PRM) seasons to understand the ionic concentrations and seasonal variations in major cations and anions. Based on concentration of physicochemical parameters it is inferred

With the increasing scarcity of water and unavailability of portable drinking water at many places, in this paper, we present a feasible solution to this problem. The only solution in sight right now is to carry out the desalination of the huge saline water bodies. The conventional methods to do so have resulted in a failure as with the consumption of fossil fuel to run them, which in turn results

Wastewater treatment is of great concern in the textile industries because dyes, which are released into wastewater, are stable due to their structures and that some of the existing conventional techniques are not effective for aqueous removal of dyes. Among the advanced techniques for treatment of industrial effluents, adsorption is one of the most effective processes for removal of dyes from industrial

The current study was executed to explore the nutritive potential of low-cost agro-industrial waste substrates including anaerobically treated distillery spent wash (ADSW) and rice straw (RS) for enzyme production (cellulase and xylanase). The statistical model, Box–Behnken Design (BBD), was utilized to optimize the enzyme production through Aspergillus heteromorphus under liquid state bioconversion

Applications of nanomaterials has recently been of keen interest to researchers. This fascinating drive ensued due to their unique properties such as optical, magnetic, ease of synthesis, large surface area, and tunable surface chemistry and functionalization that are remarkably different from that of the bulk material. In this work, silver nanoparticles were synthesized and characterized using UV–Vis

Nitrate is important for plant nutrition and is considered as an index of soil fertility. Its leaching to underground water not only poses severe threat to environment but also to human health. Amount of water supplemented to crops have significant role in yield and nitrate distribution in soil. An experiment was carried out to evaluate the effect of different irrigation rates on nitrate movement,

Decision-makers require correct and adequate information on groundwater flow systems in a basin in order to formulate sustainable water resources development strategies. However, the practicality and realism of groundwater flow system models depend on the validity, reliability and availability of quality data and information, and how they are used in model development and calibration. This goes hand

Groundwater from hand pump could be a principal supply of potable in the large part of rural areas of Mali. Indeed, it was found that this source was the safest to meet water request in remote areas (i.e., rural) of the low-income countries like Mali. However, groundwater quality is changed once external substances are available to contact with the water table. An evaluation of physicochemical and

Electrochemical techniques were successfully employed to estimate contamination of water of river Buriganga, Bangladesh. A Pt–Cu electrode has been exploited to measure selective nitrate concentration, and corrosion rate of iron has been proposed to indicate relative abundance of dissolved contaminants. In order to evaluate the pollution level, water parameters of river Buriganga have been compared

Phosphorus (P) overloading in fresh water systems has a detrimental effect by increasing the speed of eutrophication. Phytoremediation is the use of natural plants to remove contaminants from the environment. In the current study, we tested five plants (Pteris vittata, Lemna minor, Rumex orbiculatus, Rumex verticillatus, and Typha × glauca) in the laboratory and field for phosphorus mitigation potential

The current paper is paying attention to the synthesis of a low-cost, abundant and efficient hybrid activated bentonite–alginate composite ABent/A. Hybrid composite morphology was determined through FTIR, XRPD, and pHPZC. The operational conditions for the retention of two dyes used in the textile industry (methylene blue and crystal violet) from aqueous mediums were evaluated. Results showed that