Advances in Environmental Technology
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Modeling Groundwater Quality Using Three Novel Hybrid Support Vector Regression Models
(Iranian Research Organization for Science and Technology, 2020-12-01)During recent decades, the excessive use of water has led to the scarcity of the available surface and groundwater resources. Quantitative and qualitative surveys of groundwater resources indicate that accurate and efficient ...
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Environmental sustainability of an Ecosystem by Biotemplated Nano Titania
(Iranian Research Organization for Science and Technology, 2020-12-01)Environmental sustainability apart from spoken at different levels need to investigate the management of industrial activities in terms of eco friendliness. It is well known that effluents from various industries becomes ...
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Performance of keratin nanoparticle and its magnetic nanocomposite for Zn(II) removal from its aqueous solution
(Iranian Research Organization for Science and Technology, 2020-12-01)The comparative sorption studies were carried out to investigate the performance of keratin nanoparticles (KNPs) and magnetic KNPs (MKNPs) for Zn(II) uptake. MKNPs showed remarkably higher Zn(II) removal due to the lower ...
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Application of fuzzy modeling and response surface methodology for optimization of cadmium uptake by colpomenia sinosa
(Iranian Research Organization for Science and Technology, 2020-12-01)The optimum conditions for the removal of cadmium as heavy and toxic metals via a biomass were investigated in this program. The biomass was prepared from an eco-friendly, native, and low-cost algae microorganism, e.g., ...
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Multivariate and Statistical Approaches for the Source Apportionment and Evaluation of Trace Elements Pollution at Mining Areas (Case study: Mehdi Abad Pb/Zn mine)
(Iranian Research Organization for Science and Technology, 2020-12-01)Mining activities are among the main sources of trace elements in the environment, which constitute a real concern worldwide, especially in developing countries. This study aimed to investigate the multivariate approaches ...
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Application of SWAT Model to Simulate Nitrate and Phosphate Leaching from Agricultural Lands to Rivers
(Iranian Research Organization for Science and Technology, 2020-12-01)In the present study, the amount of nitrate and phosphate leaching from agricultural lands into the Zanjanrood River in Iran was simulated using the Soil & Water Assessment Tool (SWAT) model. The measured average monthly ...
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Analysis of Occupational Hazards and Lateral Environmental Pollution in the Construction Phase of Yadavaran Oil Field
(Iranian Research Organization for Science and Technology, 2019-10-01)Occupational hazards in the petroleum industry have always been among the major problems in the various phases of construction and installation, which sometimes cause environmental damage. The present study aims to evaluate ...
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Three-dimensional simulation of microcapillary and microchannel photo reactors for organic pollutant degradation from contaminated water using computational fluid dynamics
(Iranian Research Organization for Science and Technology, 2019-10-01)A three-dimensional (3D) simulation of four photocatalytic microreactors is performed using mass and momentum balance equations. The simulated results are validated with the available experimental data for the photocatalytic ...
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Environmental risk assessment and source apportionment of heavy metals in soils and natural plants surrounding a cement factory in NE Iran
(Iranian Research Organization for Science and Technology, 2019-10-01)Introducing different heavy metals (HMs) into the environment through cement production has been recognized as a serious concern globally. The present study was carried out to assess the environmental risk of chromium (Cr), ...
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Analysis and zoning of air pollution in urban landscape using different models of spatial analysis (Case study: Tehran)
(Iranian Research Organization for Science and Technology, 2019-07-01)In this study, spatial zoning models were compared to evaluate the concentrations of PM 2.5 on a large scale in the urban landscape of Tehran. The spatial analysis of PM 2.5 concentration was conducted based on the data ...
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Spatio Seasonal Discrepancies in the Physico-chemical Parameters along the Surface Water of Gahirmatha Estuary, East Coast of India in the Bay of Bengal
(Iranian Research Organization for Science and Technology, 2019-07-01)Water is a key factor in our lives, yet this valuable asset is progressively under threat. From the total share of the Earth's water, only 2% is fresh water, which is available for various life forms, including humans. ...
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A Green Route for Wasted Sulfur Consumption: Kinetic Modelling of Methyl Mercaptan Synthesis from Refinery H2S Streams over the K2Wo4/Al2O3 Catalyst
(Iranian Research Organization for Science and Technology, 2019-10-01)The kinetics of methyl mercaptan production from a reaction between methanol and hydrogen sulfide in the presence of a K2Wo4/Al2O3 catalyst was experimentally studied. Waste streams containing sulfur due to sour gas ...
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Sorption of cd (II) ions by chitosan modified peanut shell biochar from aqueous solution
(Iranian Research Organization for Science and Technology, 2019-10-01)In this paper, biochar was prepared from peanut shells, and then the pristine biochar (PBc) was modified by chitosan (CBc). The characteristics of the absorbents were investigated using infrared spectroscopy (FTIR), scanning ...
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Mass Transfer Study in Brine Water Treatment by Forward Osmosis Process
(Iranian Research Organization for Science and Technology, 2019-07-01)Forward osmosis (FO) is an energy-saving separation process that can be used in desalination applications. This work investigated the effect of mass transfer phenomenon on the FO desalination process. For this purpose, the ...
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Removal of Ni (II) from aqueous solution using modified MCM-41 nano-adsorbents
(Iranian Research Organization for Science and Technology, 2019-07-01)In this study, a synthetic and modified PPAP-MPTMS-MCM-41 nano-adsorbent was used to remove nickel (II) during a batch process. Studying the parameters that were effective on adsorption revealed that the PPAP-MPTMS-MCM-41 ...
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Effect of biochar on nitrogen retention in soil under corn plant inoculated with arbuscular mycorrhizal fungi
(Iranian Research Organization for Science and Technology, 2019-07-01)Maintaining the levels of nitrogen in agricultural fields to ensure crop yield performance is challenging due to the complex dynamics of nitrogen transformation in soil. Nitrogen is mainly taken up by plant roots in the ...
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Sorption of Cu(II), Zn(II) and Ni(II) from aqueous solution using activated carbon prepared from olive stone waste
(Iranian Research Organization for Science and Technology, 2015-10-01)The performance of olive stone activated carbon (OSAC) for sorption of Cu2+, Zn2+ and Ni2+ ions was investigated via batch technique. OSAC materials were prepared under different physially activation conditions. Olive stone ...
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Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology
(Iranian Research Organization for Science and Technology, 2019-10-01)Although bentazon is widely used as an agricultural herbicide, it is harmful to humans and poses many environmental threats. This study focused on the treatment of wastewater contaminated with bentazon pesticides using ...
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Toxicity of zero-valent iron nanoparticles and its fate in Zea mays
(Iranian Research Organization for Science and Technology, 2019-07-01)Application of nanotechnology has gained remarkable interest in recent years and environmental exposure to nanomaterials is becoming inevitable. Therefore, nanotoxicity problem is gaining more attention. Zero-valent iron ...
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Investigation of dissipation flow in the urban Canyon
(Iranian Research Organization for Science and Technology, 2015-10-01)With the wind permanent flow in the cities, obtaining the minimal pollution in the environment is accessible. Different policies have been considered for optimization of cities such as attachment and or reduction of building ...