Articles Related to WAT
Transboundary Water Pollution in Ghana: Addressing the Environmental Footprint of Illegal Mining through Legal and Policy Solutions
In Ghana, where pristine waters once flowed freely, a dark tide of transboundary pollution casts a shadow. Illegal mining, a
hydra-headed monster, spews its venom into rivers and streams, poisoning ecosystems and threatening communities across
borders. This qualitative study, based on a meticulous analysis of 45 key papers, dives deep into the causes and consequences of this environmental scourge.
Impacts of Poverty and Artisanal Mining on Municipal Water Utilities; the Case of Kpapi River in Minna, Nigeria
That unemployment, poverty, artisanal mining, and community vulnerability are interwoven is re-emphasizing the reality
of life. This study assesses the effect of artisanal mining activities on River Kpapi and the adjoining settlements in Minna
putting into consideration Sustainable Development Goal 8 (SDG8). Observatory field survey was carried out on the entire
river channel, and laboratory analysis of water samples taking to determine its hydro-chemical and Water Quality Index
(WQI) characteristics using the silver nitrate method of the American Public Health Association (APHA) and the Water
Quality Index (WQI)
A Literature Review for Improving the Solubility of Poorly Water-Soluble Drug
Nanocrystal technology has showed significant potential for commercial applications and advancements as a novel pharmacological method to increasing the water solubility of certain poorly soluble medicines. Nanotechnology is the most effective
method for solving the solubility issues with medications in BCS classes II and IV. This article is primarily concerned with
the methods of preparing nanocrystals by means of Precipitation Lyophilization Homogenization (PLH) Technology. In particular, emphasised combinative technology could improve particle size reduction. Technology, equipment, and medication
physicochemical qualities affect particle size reduction success
Advance Indexed Model Analysis of Heavy Metals Pollution of River Ureje, Ado Ekiti, Nigeria
The results obtained from heavy metal pollution assessment of River Ureje using Heavy Pollution Index (HPI) and Contamination Index (Cd ). HPI values at upstream and downstream point of the river, Cd, Pb, Cr had high pollution load that exceeded threshold value of 100 while Mn, Cu, Zn, Ni had low pollution index which are below threshold value. This indicated that high pollution status of Cd, Pb, Cr were observed because they compete with other essential metallic cations for binding sites and inhibits enzyme activity while there is no pollution presence of Zn, Mn, Ni, Cu. Cd value results in both upstream and downstream point revealed that Zn, Cd, Cu, Pb had a low contamination index below <1 contamination value and tends to show no effect on aquatic environment and drinking water quality. However, Cr, Ni had medium contamination compared to (Cd=1-3) Cd value, this indicates slight contamination of these heavy metals and have slight effect on drinking water quality and aquatic life present while Manganese had high Cd value compared to (Cd>3) Cd value which to tends have high effect on drinking water quality and aquatic system. In conclusions, this study revealed that High level of HPI above critical index value was observed for Cd, Cr, Pb while Mn shows high Cd
far above contamination index value.
Treatment of pulp and paper mill effluent by the coagulation-flocculation process
Tunisian mill wastewater analyzed for the first time prove high Chemical Oxygen Demand (COD) and high Turbidity values and deserve treatment. The biodegradability index determined by the biochemical oxygen demand (BOD)/chemical oxygen demand (COD) ratio was only 0.072, suggesting its limited biodegradability. Primarily, settling tank showed a positive effect in COD values reduced from 2490 to 448.2 mg/L. In addition, turbidity was reduced from 140 to 65.8 NTU. The coagulation-flocculation process using chemical coagulants-flocculants prior treatment equilibrate this ratio in range 1-2 promises a feasible biological treatment
The Use of Silver Nanoparticles Prepared by The Green Method to Reduce The Concentration of Nickel in Water
The present work aims to study a convenient and environmentally friendly method for the green synth of silver nanoparticles (AgNPs based on lemon juice extract. The biomolecules contained in lemon extract act as self- reducing and stabilizing agents. The optimal solution for the synthesis of AgNPs was determined by varying silver nitrate concentrations. A surface plasmon resonance system identified the synthesized silver nanoparticles by their color change from colorless to dark brown. Silver nanoparticles synthesized were characterized by Uv-visible (UV-Vis) spectroscopy, high-resolution transmission electron microscopy (HR-TEM), and FTIR spectroscopy. As a result of UV-visible spectroscopy, surface plasmon resonance (SPR) can be determine
Ground Water Quality Assessment of Lalgudi Block, Tiruchirappalli District by Using Gis
Water is a compound and may occur in a liquid form or in a solid form or in a gaseous form. All these three forms of water
are extremely useful to all, providing the luxuries and comforts, in addition to fulfilling basic necessities of life. The present
study aims to determine the ground water quality in Lalgudi Taluk. Water samples were collected from fifteen samplings
points.
Permeable Rective Barrier Using Bottom Ash and Clay for The Removal of Contaminants Presesent in Leachate
The Rapid generation rate of solid waste due to increasing population and industrialization leads to open dumping of solid waste. This causes serious environmental risk of groundwater contamination due to landfill leachate, that consists of heavy metals and impurities.
Removal of Heavy Metals from Groundwater by Hydrous Ferric Oxide-Modified Peanut Shell
This study reports the adsorption capacity of copper Cu (II) and nickel Ni (II) of biochar obtained from peanut shell. The kinetics and equilibrium of biosorption were examined in detail. Two kinetic models (pseudo-first order and pseudo-second order) were used to correlate the experimental data and to determine the kinetic parameters. Two well-known adsorption isotherms were chosen to describe the biosorption equilibrium (Langmuir and Freundlich). The equilibrium isotherms showed that modified peanut shells possess high affinity, sorption capacity for Cu (II) and Ni (II) ions, sorption capacities of 37.443 mg/g Cu (II) and 28.626 mg/g Ni (II) biomass, respectively. All results showed that peanut shells biomass is an attractive, alternative low-cost bio sorbent for removal of heavy metal ions from aqueous media, therefore biomass materials find good application prospects.
Maximal Distance of Splatters and Droplets Projections Produced by Dental Air and Water-Cooled Instruments Around a Dental Chair in an Open-Plan Area
A dental chair and its environment can be contaminated with droplet/splatter and aerosol particles, which contain various pathogens, including SARS-Cov-2, that can be transmitted by contact or inhalation. We aimed to evaluate the maximal distance of droplet/splatter projections for four different air and water-cooled dental instruments using a patient simulator, to define the boundaries of the open-plan area contaminated immediately after treatment.
We used a dental chair unit placed in a room in the open-plan area. Fluorescent powder was added to water, to know the maximal distance reached by the droplet/splatter on the surfaces of the dental room covered with white sheets.
Dental care was performed in an artificial mouth using either an air turbine handpiece, a high-speed electric contra-angle, an ultrasonic scaler, or an air/powder polisher with a constant volume of colored water. Maximal distances of droplet/splatter projections were measured after identifying the fluorescent patterns on the surfaces. Calculated heights and angles were then used after normalization to know the maximal distance that could be reached by these projections.
In these conditions, the theoretical maximal distance of droplet/splatter projection was 295 cm for the air-powder polisher, followed by 238 cm for the high-speed electric contra-angle, 93 cm for the air turbine and 77 cm for the ultrasonic scaler.
Theoretical projections for the ultrasonic scaler did not go beyond the dental room.
In our open-plan area, droplet/splatter projections can extend beyond the dental room entrance, but not over 1.80 m-high partitions, and could contaminate areas located nearby. Simple preventive measures would be to limit the perimeter of these projections, for example by installing a door, in addition to measures to limit the scope of aerosols.
Evaluation of Water Quality of Fuxian Lake by Principal Component Analysis
In this study, five water quality indexes of chemical oxygen demand (COD) in fuxian Lake were analyzed by principal component analysis (PCA) with the help of SPSS software. The results showed that the cumulative variance contribution rate of principal component 1 and principal component 2 extracted from the original data was 83.716%. According to the comprehensive evaluation function, the comprehensive ranking of pollution degree of eight sampling points is obtained. In addition, through the comprehensive evaluation of the water quality of Fuxian Lake, the pollution degree can be classified into clean and still clean.
Study of the Factors Associated with the Treatment of Drinking Water in SemiUrban Areas of Dakar in Senegal
Home water treatment is considered an effective intervention in reducing the burden of waterborne diseases in developing countries. This study aims to study the factors associated with the appropriate treatment of water in the semi-urban area of Dakar in Senegal.
Editorial Board Members Related to WAT
Mohamed M. El Alfy
Associate Professor of Hydrogeology
Prince Sultan Institute For Environment
Water and Desert Research
King Saud University
Saudi Arabia
Prince Sultan Institute For Environment
Water and Desert Research
King Saud University
Saudi Arabia
Tamer El-Sayed Ali
Professor
Department of Oceanography
Alexandria University
Egypt
Department of Oceanography
Alexandria University
Egypt
Viorica Lopez-Avila
Research Scientist
Agilent Technologies
United States
Agilent Technologies
United States
Faheem Ahmad
Assistant Professor
Department of Botany
Aligarh Muslim University
India
Department of Botany
Aligarh Muslim University
India
Khalil N Hamed Al Abbad
Department of Physical Medicine and Rehabilitation
University of Belgrade
Jordan
University of Belgrade
Jordan
E Işil Arslan Topal
Assistant Professor
Department of Environmental Engineering
Firat University
Turkey
Department of Environmental Engineering
Firat University
Turkey
George Baciu
Professor
Department of Computing
Hong Kong Polytechnic University
Hong Kong
Department of Computing
Hong Kong Polytechnic University
Hong Kong
Russell D Frew
Professor
University of Otago
Department of Chemistry
New Zealand
University of Otago
Department of Chemistry
New Zealand
Peter Majewski
Professor
School of Engineering
University of South Australia
Australia
School of Engineering
University of South Australia
Australia
Prof. Dr. Alireza Heidari, Ph.D., D.Sc.
Full Distinguished Professor and Academic Tenure of Chemistry.
Enrico Fermi Distinguished Chair in Molecular Spectroscopy.
Head of Cancer Research Institute (CRI).
Director of the Bio Spectroscopy Core Research Laboratory (BCRL) at Faculty of Chemistry, California South University (CSU), Irvine, California, USA.
President of the American International Standards Institute (AISI), Irvine, California, USA.
Board Member of the World Association of Theoretical and Computational Chemists (WATOC).