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Issue 2

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Global NEST Journal

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Moses E. Emetere et al. View all

Pollution Control Technology

The peculiarity of the lower atmosphere of south west region of Nigeria was explored using theoretical and experimental approach. In the theoretical approach, the reconstruction of 1D model as an extraction from the 3D aerosol dispersion model was used to examine the physics of the recirculation...

Aerosol dispersion model +4 more

Biodegradation of natural bitumen by Providencia stuartii isolated from heavy oil contaminated soil


Ayansina Ayangbenro et al. View all

Pollution Control Technology

Abundance and availability of unconventional petroleum has led to intensified exploitation and exploration of the bitumen reserves. This has however led to environmental pollution. This study investigated the ability of Providencia stuartii isolated from heavy oil polluted soil to degrade natural...

Bitumen Biodegradation +3 more

Optimization study of adsorption of crystal violet and congo red onto sepiolite and clinoptiolite


Semra Çoruh et al. View all

Water and Wastewater Treatment

The purpose of this study was to investigate the adsorption properties of locally available sepiolite and clinoptilolite materials as adsorbents for the removal of crystal violet and congo red dye ions from aqueous solution. Previous experiments have revealed that two variables, concentration and...

Optimization dye +3 more

Kinetic and Fixed Bed Studies for Copper Removal from Solutions by Walnut Tree Sawdust (Juglans regia Linnaeus)


Fil, Baybars Ali et al. View all

Pollution Control Technology

This study investigates the adsorption kinetics and removal conditions of copper by walnut tree sawdust from synthetic solutions in the batch and fixed bed reactors. The selected experimental parameters for the batch reactor were concentration, solution pH, adsorbent amount and temperature. The...

Walnut sawdust Copper removal +3 more

Comparison of thermophilic and mesophilic anaerobic treatment for potato processing wastewater using a contact reactor


Elif İnce et al. View all

Water and Wastewater Treatment

In this study, different organic loading rates (OLRs) ranging from 1.1 to 5.0 kg COD/m3·day were used to assess the performance of an anaerobic reactor at the optimum mesophilic (35°C) and thermophilic (55°C) temperatures. The methane gas production rate of the thermophilic treatment was higher than...

meshophilic thermophilic +3 more

Window Length Selection of Singular Spectrum Analysis and Application to Precipitation Time Series


Xuyong Li et al. View all

Water Resources Management

Window length is a very critical tuning parameter in Singular Spectrum Analysis (SSA) technique. For finding the optimal value of window length in SSA application, Periodogram analysis method with SSA for referencing on the selection of window length and confirm that the periodogram analysis can...

SSA singular spectrum analysis +4 more

Environmental loadings of long term sulphur storage: processes and controls


Tariq Cheema et al. View all

Water Quality

Elemental sulphur (So) is produced at petroleum refineries as a byproduct and a decrease in So prices has forced tens of mega-tonnes of So to be stockpiled at industrial sites. However, long-term storage of So blocks poses a potential for contamination of surface water and groundwater because of the...

Pilot Sulphur Blocks. Instrumentation. Laboratory Analysis. Oxidation. Temperature.

Environmental policy evaluation from the perspective of farmers' perception in arid oasis ecosystem: Experiences of Minqin, Northwest China


Yang H., Li Y., Feng Q., Chen L. and Zhao Y.

Environmental Management and Policies

Effective eco-environment rehabilitation is an essential policy issue in arid oasis ecosystem. Since 2007, a policy which focuses on environment restoration and protection was implemented in the Shiyang River Basin of Gansu Province, China. Using Minqin oasis as a case, the effectiveness of policy...

Environmental policy evaluation Farmers’ perception +3 more

Ammonium Recovery from Biocatalytic Calcification Reactor Effluent by Struvite Precipitation


İsmail ŞİMŞEK et al. View all

Water and Wastewater Treatment

Chemical precipitation is a suitable method for the recovery and removal of ammonium in water and a fertilizer known as MAP (magnesium ammonium phosphate; MgNH4PO4.6H2O; struvite) is obtained. Additionally, the advantage of this method is that environmental conditions do not have any effect compared...

Ammonium Recovery Biocatalytic Calcification +3 more

Degradation of o-xylene by a novel strain, Zoogloearesiniphila HJ1: Identification, kinetics and metabolic pathway


Jianming Yu et al. View all


Biodegradation has become a popular alternative remediation technology due to its economical and ecological advantages. A strain able to degrade o-xylene effectively was selected and identified as Zoogloearesiniphila HJ1. The organism, strain HJ1, could degrade o-xylene with concentration as high as...

O-xylene Zoogloearesiniphila +3 more

Molybdenum(VI) removal from aqueous solutions using bentonite and powdered cockle shell; Optimization by response surface methodology


Amin Mojiri et al. View all

Water and Wastewater Treatment

Removal of Mo(VI) from aqueous solutions by using bentonite and powdered cockle shell was conducted in this research. First, the effects of pH and initial Mo(VI) concentration on the Mo removal efficiency via shell and bentonite were studied. Results showed that Mo removal effectiveness increased as...

Bentonite VI +3 more

Competitive sorption of nickel, copper, lead and cadmium on okra leaves (Abelmoschus esculentus)


KHASKHELI M.I. et al. View all

Water and Wastewater Treatment

In this study, potential of okra leaves for the removal of Ni(II), Cu(II), Pb(II) and Cd(II) from the mixed metal aqueous solution were evaluated. The data were analyzed by Freundlich, Langmuir, D-R, Flory-Huggins and Halsey adsorption models. Pseudo first order rate, Pseudo second order rate...

Okra leaves Removal +3 more

Effects of domestic and industrial effluent discharges into the lake and their impact on the drinking water in Pandravedu village, Tamil Nadu, India


Hemamalini Jagadeesan et al. View all

Water Quality

Increasing demand for water from agriculture, industrial and domestic sectors, resulted in stress on the water resources both from quantity and quality perspectives. Due to urbanization many of the dyeing units have shifted from urban to nearby rural areas. Here safe disposal of untreated effluent...

Lake water water quality Index +3 more

Modelling the dispersion of benzene emissions from a proposed ethanol producing facility in Farewell-Oshawa of Toronto, Canada


Sabah Ahmed Abdul-Wahab et al. View all

Air Quality

The production and use of biofuels such as ethanol have been the target of intensive research. One source of ethanol is corn, which is abundant in many countries. In producing ethanol from corn, an assessment of the environmental impact of the process is needed. This study intends to provide insight...

Benzene Corn +3 more

Chromium biosorption from aqueous environments by mucilaginous seeds of Cydonia oblonga: Thermodynamic, equilibrium and kinetic studies


Edris Bazrafshan et al. View all

Water and Wastewater Treatment

Hexavalent chromium Cr(VI) is one of the most toxic heavy metals in aqueous solutions, hence it is highly imperative to treat the wastewater containing Cr(VI) before its discharge. At present work, the rate of biosorption was studied under a variety of conditions, including initial Cr(VI)...

Cydonia oblonga chromium removal +2 more

Humic acid removal from water using a novel fabricated antifouling carbon nanotube bucky - paper membrane and effect of operating parameters


Jafari A, Nasseri S., Nabizadeh R., Mousavid SA., Rezaee R. and Mahvi AH.

Water and Wastewater Treatment

In present work, a novel supported bucky paper (BP) membrane was fabricated and evaluated for humic acid (HA) removal from water. For better understanding the effect of operating variables, response surface methodology (RSM) was also applied. Three independent parameters namely TOC concentration (5...

Filtration Natural organic matter +3 more

Reproducibility of solid-state fermentation at bench-scale: the case of protease production


Dimitrios Komilis et al. View all

Solid Waste Management

Solid-state fermentation (SSF) process appears to be an efficient way to recover and valorise organic residues from industries and to generate other products of industrial significance, such as enzymes. As the reproducibility of SSF is one of the main drawbacks in the development of this process, a...

Solid-state fermentation protease production +2 more

Removal of Cu2+ and Zn2+ from aqueous medium using ionic polyacrylamides


Luiz Antonio do Nascimento et al. View all

Water and Wastewater Treatment

The wastewater produced by the galvanoplasty industry is a serious environmental problem due to the high concentrations of heavy metals. In this study polymers were used in ionic flocculation to treat synthetic wastewater containing metals, applying four types of polyacrylamides with different ionic...

Heavy metals removal ionic polyacrylamides +4 more

Removal of lindane and Escherichia coli (E.coli) from rainwater using photocatalytic and adsorption treatment processes


Puganeshwary Palaniandy et al. View all

Water and Wastewater Treatment

Low concentrations of contaminants in rainwater is the primary benefit of transforming it as an alternative source of drinking water. However, treatment is necessary as rainwater collects contaminants that are persistent in the environment such as lindane and E.coli. The combination of...

synthetic rainwater pH +5 more