نتایج جستجو برای: iron removal

تعداد نتایج: 280177  

Journal: :iranian journal of toxicology 0
احمد کاکایی ahmad kakaei ms student of chemical engineering, islamic azad university, south-tehran branch, tehran, iran. محمد کاظمینی mohammad kazemeini department of chemical engineering, sharif university of technology, islamic azad university, south-tehran branch, tehran, iran.

background: heavy metals, even at low concentrations, are harmful to human health and environment. cadmium as a heavy metal is highly toxic and can cause serious threat to living organisms. this research was designed to evaluate the adsorption potential of modified magnetic iron nanoparticles by 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol ligand for the removal of cadmium ions from water solu...

2015
John H. McCullough

Iron restriction is the body’s removal of freely available iron from blood and extracellular fluid, as part of the systemic inflammatory response [1]. This process is mediated by hepcidin, which ‘locks’ iron into somatic cells by down-regulating the iron exporter protein ferroportin [2]. Iron accumulates within macrophages, hepatocytes and gut enterocytes, but cannot enter the circulation [1, 2...

Journal: :Clinical chemistry 1969
A D Olson W B Hamlin

A new, atomic absorption spectrophotometric method for serum iron and iron-binding capacity is described, which utilizes 20% (w/v) TCA plus heating at 90#{176} for 15 mm. This procedure liberates the ferric iron; precipitates the protein, facilitating removal by centrifugation; and avoids significant interferences by contaminating hemoglobin iron. The method is highly specific, accurate, and ha...

Journal: :international journal of environmental research 2015
a. sofu e. sayilgan g. guney

this paper investigates the removal of iron and zinc from aqueous solution with dairy wastewaterin three different biomasses such as lactobacillus delbrueckii ssp bulgaricus (lb-12), streptococcus thermophillus(stm-7) and a combination of both this bacteria culture (yc-380) and the optimization of removal efficiencyusing minitab program. a full 23 factorial design of experiments was applied to ...

ژورنال: طلوع بهداشت یزد 2013
اسدی, انور, درگاهی, عبد الله, ناصری, سیمین, هیبتی, بهزاد, گلستانی فر, حافظ ,

  Background : The contamination of nitrate (NO3−) in potable water has become a serious concern in many parts of the world. Increasing nitrate concentrations in drinking water causes two adverse health effects: induction of “blue-baby syndrome” (methemoglobinemia), especially in infants, and the potential formation of carcinogenic nitrosamines. The objective of this study was to investigate th...

ژورنال: سلامت و محیط زیست 2014
رجایی, محمد صادق, قنادزاده, محمد جواد, مشایخی, معصومه, کریمی, بهروز,

Backgrounds and Objectives: Nowadays, global concerns about nitrate in groundwater and its adverse impact on health have increased. This study aims to evaluate the efficiency of nitrate reduction from aqueous solution through modified Fenton process using Nano scale zero-valent iron. Material and Methods: This research was an experimental study and performed at laboratory scale. Nitrate reducti...

Journal: :Indian journal of experimental biology 2000
S K Mukerji

The review describes the structural and biochemical properties of the haem biosynthetic enzyme, uroporphyrinogen decarboxylase (UROD), which sequentially catalyzes the removal of the four carboxyl groups from the acetate side chains of octacarboxylic uroporphyrinogen to form coproporphyrinogen, and the possible biochemical mechanism of the genesis of porphyria cutanea tarda (PCT). The disease i...

2006
Gary R. Peyton Thomas R. Holm John Shim

...............................................................................................3 Introduction............................................................................................3 Arsenic Maximum Contaminant Level.............................................................3 Arsenic Speciation...................................................................................

Journal: :iranian journal of health sciences 0
mansooreh dehghani department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, iran razieh shabestari amir anushiravani narges shamsedini

abstract background and purpose:the main objectives of this research were to evaluating the application of electrocoagulation process for 198 dye from the aqueous phase and determining the optimum operating conditions to the dye removal using aluminum and iron electrodes. materials and methods:the present study was conducted in bench-scale. the spectrophotometer dr 5000 was used to determine th...

Journal: :Blood 1991
J B Porter K P Hoyes R D Abeysinghe P N Brooks E R Huehns R C Hider

Five orally effective iron chelators of the 3-hydroxypyridin-4-one series have been administered intraperitoneally to iron-overloaded and nonoverloaded male mice at a dose of 200 mg/kg/24 h for a total of 60 days to investigate the effect on iron loading and toxicity. There was a significant reduction in hepatic iron at the end of the study in the iron-overloaded mice with all compounds studied...

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