A5036493388- Adsorption and biosorption for pollutant removal
- Air Quality and Health Impacts
- Advanced oxidation water treatment
- Air Quality Monitoring and Forecasting
- Composting and Vermicomposting Techniques
- Water Quality Monitoring and Analysis
- Advanced Photocatalysis Techniques
- COVID-19 epidemiological studies
- COVID-19 and Mental Health
- Pharmaceutical and Antibiotic Environmental Impacts
- Vehicle emissions and performance
- Heavy metals in environment
- Recycling and Waste Management Techniques
- Fluoride Effects and Removal
- Groundwater and Isotope Geochemistry
- Dye analysis and toxicity
- Water Quality and Pollution Assessment
- Constructed Wetlands for Wastewater Treatment
- Arsenic contamination and mitigation
- Nanomaterials for catalytic reactions
- Water Treatment and Disinfection
- Phosphorus and nutrient management
- COVID-19 Pandemic Impacts
- Environmental Chemistry and Analysis
- Microplastics and Plastic Pollution
Mashhad University of Medical Sciences
2016-2025
University of Newcastle Australia
2018
High and low levels of fluoride in drinking waters have been considered as a major public health issue recent years. This cross-sectional study was conducted over five consecutive years (from 2012 to 2016) the water distribution network Mashhad city, Iran with objectives determining perform risk assessment among residents area. Water samples were taken from 30 stations analyzed using UV-visible spectrophotometer. The mean annual concentrations all during lower than respective maximum...
Abstract Microplastics (MPs), as carriers of organic pollutants in the environment, have become a growing public concern recent years. Tetracycline (TTC) is an antibiotic that can be absorbed by MPs and harmful effect on human health. Therefore, this study was conducted with aim investigating adsorption rate TTC onto polyvinyl chloride (PVC) MPs. In addition, mechanism process studied using isothermal, kinetic, thermodynamic models. For purpose, experimental runs Box-Behnken model were...
Abstract MPs have raised significant public concern due to their role as carriers of organic contaminants in aqueous solutions. DZN is a non-systemic organophosphorus pesticide that poses risks human and environmental health. This study aimed investigate the adsorption onto PE by examining factors such dose, reaction time, concentration, pH through experimental runs based on Box‒Behnken model. According Langmuir model, maximum capacity for was 0.35 mg/g. The results indicated highest rate...
Metal-organic frameworks (MOFs) are currently recognized as unique platforms for environmental studies. This study evaluated the potential of nine MOFs from ZIF-8, ZIF-67, and UIO-66 families removal ciprofloxacin (CIP), a toxic, bio-accumulative, persistent fluoroquinolone antibiotic. ZIF-67-SO4, with rhombic crystalline morphology 1375 m2/g BET surface area, has highest CIP adsorption efficiency among studied MOFs. The mathematical sorption model predicted that (99.2%) occurs when...
Abstract Background Human resources management plays an important role in social development and economic growth. Absence from work due to health problems can make obstacles the growth of economy. This study conducted aimed estimate absenteeism costs COVID-19 among personnel hospitals affiliated Mashhad University Medical Sciences Mashhad, Iran. Methods cross-sectional was between February 19, 2020, September 21, 2020. The were calculated using human capital approach. Finally, we applied...
Phenol is a hazardous organic chemical that introduced into the environment by industrial and pharmaceutical discharges. As versatile option for phenol removal, adsorption would be viable if it accompanying with low cost adsorbents. This article described natural, very cheap local available adsorbent removal. showed high affinity to Citrullus colocynthis waste ash which mainly composed of SiO2 (41.6%), Al2O3 (17.3%) MgO (15.9%). Up 70% adsorbed in first 30 min agitation. The removal was...
Background: The use of easy, fast, and accurate methods can be an important help in evaluating milk quality. purpose this study was to investigate the accuracy diagnostic strip kits compare it with ELISA HPLC as a reference method, which fastest tool play role providing results. Methods: According catalog provided by manufacturer, samples were analyzed rapid kit kit. Finally, positive checked HPLC. Validation done comparing results obtained from three well values manufacturer. limit...
Magnetite nanosorbents are known with high sorption capacity and ease of solid phase separation from surrounding liquid by the imposed external magnetic field. In this study, magnetite nanoparticles (MNPs) silica‐coated (Si‐MNPs) were prepared used for removal arsenic (III) aqueous solutions. The characterized transmission electron microscope, X‐ray diffraction, Fourier transform infrared spectroscopy, vibrating sample magnetometer. spherical Fe 3 O 4 in diameter about 100 nm SiO 2 shells 12...
Annually, large quantities of dyes are produced and consumed in different industries. The discharge highly colored textile effluents to the aquatic environments causes serious health problems living organisms. This paper investigates performance each electro-oxidation electro-reduction pathways removal reactive red 120 (RR120) from synthetic using a novel electrochemical reactor.In current study, two-compartment reactor divided by cellulosic separator was applied batch mode graphite anodes...
Abstract Adsorption of RR141 (an anionic dye) was carried out onto Melia Azaderach sawdust (MAS) in solutions containing low concentrations calcium ions. The effect dye concentration, solution pH, Ca 2+ adsorbent dose, and contact time investigated by response surface methodology. results showed that adding 50 mg L −1 ions, the decolorization rate increased 3 fold. Cation bridging between anions negatively charged sites MAS recognized as main mechanism for enhanced removal. Higher removal...