نتایج جستجو برای: increase in organic and inorganic contaminants

تعداد نتایج: 21782577  

Journal: :journal of sciences, islamic republic of iran 2013
farnaz jahanbin mohammad khodadadi-moghaddam shahab bohlooli

formation of non bonded organic layer around inorganic particles like iron sulfide and zeolites, was hypothesized as starting point for one of the possible mechanisms of the origin of life on earth. in this study, the general circumstances needed for creation of such organic layer was investigated. an aliphatic hydrocarbon (hexane), an aromatic hydrocarbon (toluene), an alcohol (n-octanol) and ...

Ali Reza Farajollahi Ali Reza Naseri Behnaz Babay Abdollahi Hamed Hamishehkar Marjan Ghorbani

Introduction: Nanoparticles have several exciting applications in various fields of biomedicine. It has been found that among different classes of nanoparticles core/shell is most promising for field of nano-medical imaging and therapy due to their distinct advantages. The core/shell type nanoparticles can be generally comprising of two nanoparticles one act as a core (inner ma...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده برق و کامپیوتر 1391

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

2015
Benjamin G. Petri Richard J. Watts Amy L. Teel Scott G. Huling Richard A. Brown

Radicals known to play significant roles in hydrogen peroxide chemistry include the hydroxyl radical (OH ), superoxide radical (O2 ), and perhydroxyl radical (HO2 ). Different radicals dominate the reaction under different chemistry conditions, and are controlled by parameters such as concentration of the oxidant, catalyst, organic or inorganic solutes, and pH. This can affect performance as so...

Journal: :Gazi university journal of science part a:engineering and innovation 2022

The household and industrial use, as well mining of coal, pose various environmental health risks including lung kidney diseases such Balkan Endemic Nephropathy (BEN). BEN is a disease it geographically confined to countries where extensive lignite deposits are located. most accepted cause the use untreated waters contaminated by lignite-derived organic contaminants. Afşin-Elbistan basin contai...

2013
M. Bustamante N. Durán M. C. Diez

Bioremediation processes are negatively affected by the low aqueous solubility of some contaminants; therefore their bioavailability may be enhanced by the addition of surfactants. These compounds are organic molecules that can be chemically and biologically produced. Surfactants contain both hydrophilic and hydrophobic groups, therefore reducing surface and interfacial tensions of immiscible f...

Journal: :Water research 2010
Ching-Yu Peng Gregory V Korshin Richard L Valentine Andrew S Hill Melinda J Friedman Steve H Reiber

Corrosion scales and deposits formed within drinking water distribution systems (DWDSs) have the potential to retain inorganic contaminants. The objective of this study was to characterize the elemental and structural composition of extracted pipe solids and hydraulically-mobile deposits originating from representative DWDSs. Goethite (alpha-FeOOH), magnetite (Fe(3)O(4)) and siderite (FeCO(3)) ...

A. Hosseini H. Khazali, H. Rokni M. Keshvari

Zinc (Zn) plays an essential role in the human and animal body system. Zinc deficiency might cause many disorders, so it is important to provide a sufficient amount of this microelement in both animals and humans. One of the most important sources of Zn is milk. The purpose of this study was to determine whether Zn can pass through the mammary epithelial cell into milk by a cotransport system w...

2011
Nilanjana Das Preethy Chandran

One of the major environmental problems today is hydrocarbon contamination resulting from the activities related to the petrochemical industry. Accidental releases of petroleum products are of particular concern in the environment. Hydrocarbon components have been known to belong to the family of carcinogens and neurotoxic organic pollutants. Currently accepted disposal methods of incineration ...

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