| Global NEST Journal

Impact of ultraviolet radiation on human skin owing to ozone depletion

by

Nagarajan P et al. View all

Issue 2

Water and wastewater treatment and reuse

Depletion of ozone molecules in the stratospheric layer surges the flow of ultraviolet (UV) rays on the surface of the earth. Generally, UV rays are the hazardous energy waves emitted from the sun that can cause acute and chronic effects on bio species. Exposure to UV rays in humans causes skin...

UV Radiation Skin problems +3 more

Prediction of Ozone Depletion Levels using Intelligent CNN-SVM Classification System

by

Arun V et al. View all

Issue 2

Environmental data analysis and modelling

The concentration of ozone in the earth atmosphere has been steadily falling by 4% in the total amount since late 1970. With the widespread usage of modern industry chlorofluorocarbons, the rate at which ozone content decreases is escalating, resulting in an ozone hole. The depletion permits harmful...

Evaluate the effectiveness of the UV/ persulfate process to remove catechol from solution aqueous

by

Mansour Ghaderpoori et al. View all

Issue 1

Water and wastewater treatment and reuse

Catechol is used as an antioxidant, fungicide, and polymerization inhibitors in a variety of industries such as petrochemical. Catechol must be removed from effluents before it enters to environment. This study aimed to investigate combined UV radiation and persulfate process in removal of catechol...

Persulfate radical Catechol +2 more

Modeling of nitrate removal from aqueous solution by Fe-doped TiO2 under UV and solar irradiation using response surface methodology

by

Marjan Safarpour et al. View all

Issue 2

Water and wastewater treatment and reuse

Nitrate is a common groundwater pollutant all over the world. In some regions of Iran, its levels are high enough to cause serious problems to human health and the environment . The objectives of this work were to evaluate the efficiency of Fe-doped TiO 2 nanoparticles at removing nitrate from...

Box–Behnken design nitrate +3 more

Solar assisted photo fenton for cost effective degradation of textile effluents in comparison to AOPS

by

Durr-E-Shahwar, Yasar A. And Yousaf S.

Issue 4

General

Solar assisted Photo Fenton was compared with advanced oxidation processes for their color and COD removal efficiency and cost effectiveness. H2O2 alone appeared to be inefficient to reduce color and COD content of any effluent. The performance of Fenton process was slightly better, color and COD...

Solar radiation Ozone +4 more

Investigation of the effect of ultrasonic waves on the enhancement of efficiency of direct photolysis and photooxidation processes on the removal of a model contaminant from textile industry

by

Behnajady M.A., Modirshahla N., Shokri M. and Vahid B.

Issue 1

General

The effect of ultrasonic waves (US) was studied on the degradation of Malachite Green (MG) as a model contaminant from textile industry by direct photolysis with ultraviolet (UV) radiation and UV/H2O2 processes. The US (35 kHz) and UV (253.7 nm) radiations were carried out with an ultrasonic bath...

AOPs Advanced oxidation processes +4 more

Impact of environmental conditions on photosynthesis, growth and carbon allocation strategies of hypersaline species of Dunaliella

by

Giordano M. and Beardall J.

Issue 1

General

Hypersaline environments pose a number of ecological and metabolic challenges to the organisms that live in them. Primary producers, such as halotolerant species of the green microalgal genus Dunaliella, are no exception. In this paper we focus on the problems posed to the acquisition and metabolism...

Dunaliella photosynthesis +5 more

Evaluation of Treatment Schemes Appropriate for Wastewater Reuse in Greece

by

Andreadakis A., Mamais D., Gavalaki E. and Panagiotopoulou V.

Issue 2

General

The scope of this paper is the evaluation of wastewater reuse quality criteria and treatment specifications, appropriate to Greek conditions. The parameters that affect wastewater reuse criteria were taken into consideration, concerning among others reuse priorities, available treatment plants and...

wastewater reuse criteria +4 more

Treatment of Water Contaminated with DI-N-Butyl Phthalate by Foto-Fenton Process

by

Al-Tawabini B.S.

Issue 1

General

This study was conducted to assess the removal efficiency of Di-n-butyl phthalate (DnBP) from aqueous medium using the photo-Fenton process. The Fenton's reagent that consists of a mixture of hydrogen peroxide (H2O) and ferrous ions (Fe2+) was used to generate the hydroxyl radical (OH0) that attacks...

Ultraviolet light hydrogen peroxide +4 more

Photocatalytic removal of cefazolin from aqueous solution by AC prepared from mango seed+ZnO under UV irradiation

by

Abdollah Dargahi et al. View all

Issue 2

Water and wastewater treatment and reuse

Presence of antibiotics in the environment specially in aqueous environments is considered a major warning about health and environment. Thus, this study aims the efficiency of coupled process of Activated Carbon (AC) prepared from mango seed+ZnO under UV irradiation as an advanced oxidation process...

Advanced oxidation Cefazolin Antibiotic +3 more

Model for estimating atmospheric ozone content over Europe for use in solar radiation algorithms

by

Karavana-Papdimou K. et al. View all

Issue 2

General

Part of the attenuation of the incoming solar radiation by the atmosphere is caused by ozone absorption in the UV and visible portions of the spectrum. Ozone absorption typically accounts for only 2-3 % of the global solar radiation depletion, but it is often 10-20 % of the absorption of the direct...

Relationship between airborne microbial and particulate matter concentrations in the ambient air at a mediterranean site

by

Raisi L., Lazaridis M. and Katsivela E.

Issue 1

General

The relationship between the viable airborne bacterial and fungal concentrations and the respirable particulate matter with aerodynamic diameter less than 10 μm (PM10), 2.5 μm (PM2.5), and 1 μm (PM1) in the ambient air was studied. An Andersen six stage viable particle sampler and a MAS 100 sampler...

viable airborne bacteria and fungi particulate matter +1 more

Total column ozone and solar UV-B erythemal irradiance over Kishinev, Moldova

by

Aculinin A.A.

Issue 3

General

Results of the total column ozone and ultraviolet (UV-B) erythemally weighted irradiance measurements at the ground-based solar monitoring station at the Kishinev (Moldova) are presented. Diffuse and global components of solar UV-B erythemal irradiance on horizontal plane were continuously measured...

column ozone content UV-B erythemal radiation +1 more