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Global NEST Journal

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Biodecolourization and biotransformation of textile dyes remazol violet-5R and remazol brillant orange-3R by Bacillus sp. DT9 isolated from textile effluents


Nazime MERCAN DOĞAN et al. View all

Water and Wastewater Treatment

The present study aims to evaluate RV-5R and RBO-3R decolourizing potential of Bacillus sp. DT9 isolated from textile effluent in Denizli (Turkey). In present study, maximum dye-decolourizing efficiency of the culture was achieved at 25 mg l -1 concentration of RV-5R and 500 mg l -1 concentration of...

Bacillus Remazol Violet-5R +3 more

Performance of different photocatalytic oxidation processes in petroleum wastewater treatment: A Comparative Study


Dheeaa al deen Atallah Aljuboury et al. View all

Wastewater treatment

The present study was conducted to compare the performance of different solar photocatalytic processes (TiO 2 photocatalysis, photo-Fenton, photo-Fenton coupled with TiO 2 photocatalysis, and photo-Fenton coupled with TiO 2 /ZnO photocatalysis) for the treatment of petroleum wastewater. The removal...

TiO2 photocatalysis process Photo-Fenton process +3 more

Effects of V2O5 and WO3 loadings on the catalytic performance of V2O5-WO3/TiO2 catalyst for SCR of NO with NH3


Chengwen Song et al. View all

Air Quality

V 2 O 5 -WO 3 /TiO 2 catalysts were fabricated by a simple impregnation method. Effects of V 2 O 5 and WO 3 loadings on the catalytic performance of V 2 O 5 -WO 3 /TiO 2 catalyst for selective catalytic reduction (SCR) of NO with NH 3 were investigated. Morphology and structure of the V 2 O 5 -WO 3...

V2O5-WO3/TiO2 catalyst SCR +2 more

New explicit formulations for accurate estimation of aeration-related parameters in steady-state completely mixed activated sludge process


Kaan Yetilmezsoy et al. View all

Water and Wastewater Treatment

This paper presents new and explicit equations to estimate aeration-related parameters such as standard oxygen requirement, daily energy consumption and total mass transfer coefficient for the diffused aeration. The proposed formulations are derived for the steady-state completely mixed activated...

completely mixed activated sludge energy consumption +4 more

Seasonal variation in ground water quality and its suitability for drinking and agriculture –a case study in Kancheepuram region, Tamil Nadu, India


Arivarasi R et al. View all

Water Quality

In the present study an attempt has been made to assess the seasonal ground water quality variations at Kancheepuram region, Tamil Nadu, India. In order to evaluate the seasonal ground water quality for drinking and irrigation purposes, 68 groundwater well data were collected and analyzed for...

irrigation Physico-chemical +3 more

Removal of COD, BOD and Color from Municipal Solid Waste Leachate using Silica and Iron nano particles - A Comparative Study


Dr. S. Shanthakumar et al. View all

Water and Wastewater Treatment

Application of nano particle in the treatment of municipal solid waste leachate is of recent interest. In this paper, the effectiveness of silica nano particles synthesized from blast furnace slag and iron nano particle synthesized from chemicals was studied for the removal of organic pollutants and...

Blast furnace slag nano particles +3 more

Removal of cadmium (II) from aqueous effluents by sorption on Romanian silver fir tree bark (Abies alba Mill.) wastes


Carmen Paduraru et al. View all

Water and Wastewater Treatment

In last decades the search for new low cost sorbents that have heavy metal ions binding capabilities is a hot topic in the field of clean-up technologies. In this study, wastes of Romanian silver tree ( Abies alba) bark were explored for first time as green and economical sorbent for the removal of...

bark cadmium +4 more

Decomposition of sodium dodecylbenzene sulfonate surfactant by Electro/Fe2+-activated Persulfate process from aqueous solutions


Kazem Godini et al. View all

Wastewater treatment

The decomposition of sodium dodecylbenzene sulfonate (SDBS), which is a dangerous and anionic surfactant, was investigated by the electro/Fe 2+ /persulfate process from aqueous solutions. The activation of persulfate anion and production of active radicals were performed by means of heat, UV and...

Electro/Fe2+-activated persulfate decomposition Sodium dodecylbenzene sulfanat +1 more

Antidepressants in urban wastewater treatment plant: occurrence, removal and risk assessment


Arzu Tekinay et al. View all

Hazardous Substances and Risk Analysis

In this study, an analytical methods for determination of antidepressants including (diazepam (DZP), lorazepam (LZP), carbamazepine (CBZ), fluoxetine (FLU)) was developed. The concentration of antidepressants was monitored in Konya Urban Wastewater Treatment Plant influent and effluent samples for...

Antidepressant Removal +2 more

Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters


Figueiredo S.A. et al. View all


Laboratories produce a large volume of wastewaters containing different chemical indicators, organic species for which there is no complete knowledge about their effects in the aquatic environment. The aim of this work was to evaluate the ecotoxicity of four chemical indicator substances commonly...

Chemical indicators Chlorella vulgaris +4 more

Adsorption of UV254 in Kerian River water onto ZeliacTM: Analysis using linear and non-linear forms of isotherm models


Hamidi Abdul Aziz et al. View all

Water Resources Management

The composite media, Zeliac TM was developed with the initial aim to provide low cost adsorbent with promising adsorption capacity. This study was conducted to investigate the removal of UV absorbance at 254 nm (UV 254 ) in Kerian river water using Zeliac TM as the media. Batch experiments study was...

Aromatic compounds Natural organic matter +3 more

Modeling a Drought Index Using a Nonparametric Approach


Olya H. et al. View all


Alternatively, to other studies that used parametric distributions (e.g. Gamma) in the estimation of the Standardized Precipitation Index (SPI), this study aims to apply a nonparametric method based on Kernel Density Estimator (KDE) for calculating the SPI. Results of the proposed method were...

SPI Gamma Distributions +2 more

A multi-stage methodology for selecting input variables in ANN forecasting of river flows


Dionysia Panagoulia et al. View all


The scientific community has recognized the necessity for more efficiently selected inputs in artificial neural network models (ANNs) in river flows and has worked on this despite some shortcomings. Moreover, there is none or limited inclusion of ANN inputs coupled with atmospheric circulation under...

Artificial neural networks Optimization +5 more

Evaluation of three pollutant dispersion models for the environmental assessment of a district in Kocaeli, Turkey


Kazım Onur Demirarslan et al. View all

Air Quality

Air Quality Modeling is a method used to manage urban air quality. Various pollutant dispersion models are available, and each of these models is characterized by its own advantages and disadvantages. Thus, we aimed to evaluate the advantages and disadvantages of the models and to determine their...

AERMOD ● CALPUFF ● ISCST-3 ● Körfez district ● Pollutant dispersion modeling

The contribution of natural and artificial regeneration at the restoration of fire-affected peri-urban forest of Thessaloniki (Northern Greece)


Chatzichristaki Chrysoula et al. View all


In this study, the post-fire regeneration of three coniferous species ( Pinus brutia, Cupressus sempervirens and Cupressus arizonica) was examined in the peri-urban forest of Thessaloniki, Northern Greece. The wildfire took place in July 1997 and burned almost 60% of the forest vegetation. During...

Postfire reforestation Pine forest +1 more

Synthesis and application of CeO2/sawdust nanocomposite for removal of As (III) ions from aqueous solutions using a fixed bed column system


Reza Ansari et al. View all

Wastewater treatment

In this study, nanocomposite of ceria sawdust (CeO 2 /SD) synthesized by precipitation method was utilized for removal of As (III) ions from aqueous solutions. Study of the process was done in column system. Characterization of the nano sized adsorbent particles was carried out using XRD and SEM...

Removal III +5 more