نتایج جستجو برای: iron removal
تعداد نتایج: 280177 فیلتر نتایج به سال:
Schwertmannite-mediated removal of arsenic from contaminated water has attracted increasing attention. However, schwertmannite chemical synthesis behavior under different H2O2 supply rates for ferrous ions oxidation is unclear. This study investigated pH, ferrous ions oxidation efficiency, and total iron precipitation efficiency during schwertmannite synthesis by adding H2O2 into FeSO4 · 7H2O s...
1. Transferrin-bound iron was released by a cell-free solution prepared from Rana catesbeiana immature erythrocytes, showing that cellular integrity is not necessarily a requirement for this process as previously thought. 2. The biological molecule(s) involved in the removal of iron from transferrin is relatively small.
Nowdays, iron nanoparticles due to their unique characteristics are used in all of sciences and technology. These nano particles due to their electrical, magnetic, optical and catalytic properties and having high area and activity that is promped by their small size and most importantly many scientists from the entire world are interested in th...
Magnetic iron oxide/graphene oxide (MGO) with high iron loading (51 wt%) has been successfully synthesized using the co-precipitation method, and then used as adsorbents for the removal of arsenate and arsenite from aqueous solutions. The resulting MGO possesses desirable magnetic properties (12.8 emu g(-1)) and excellent adsorption properties for the removal of As(III) and As(IV) with signific...
Iron chelation treatment of red blood cells infected with Plasmodium falciparum selectively intervenes with iron-dependent metabolism of malaria parasites and inhibits their development. Highly permeant hydroxamate iron chelator RSFileum2 affects all parasite stages when cultures are continuously exposed to drug, but affects primarily ring stages when assessed for irreversible effects, ie, sust...
heavy metal contamination in the environment could cause harmful effects both to human health and aquatic life. numerous remediation methods had been developed to encounter with the contamination problem prior to degrade, decrease and to purify the contaminated water at minimal concentration as low as possible. therefore, in current study, commercialized chicken eggshells and hybrid akar putra ...
In the present study, several pre-polymerized coagulants of iron and aluminum were tested for their efficiency towards As(V) and As(III) removal from water sources. The results showed that the pre-polymerized coagulants of iron, such as poly-ferric sulfate and poly-ferric silicate chloride, were very efficient for As(V) removal. With regard to As(III) removal, among all examined coagulants, inc...
Flow-through columns packed with "aged" zero-valent iron (ZVI) between layers of soil and sand were constructed to mimic a one-dimensional permeable reactive iron barrier (PRB). The columns were continuously fed RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine, ca. 18 mg l(-1)) for over one year. Two columns were bioaugmented with dissimilatory iron reducing bacteria (DIRB) Shewanella algae BrY or ...
چکیده فارسی کلی باسیلوز پرندگان توسط اشریشیاکلی بیماریزای پرندگان (apec) ایجاد می گردد. علی رغم اینکه بیش از یک قرن است که apec شناخته شده است، کلی باسیلوز پرندگان به عنوان یک بیماری مهم آندمیک که صنعت طیور دنیا را با مشکل مواجه کرده مطرح است. اشریشیا کلی بیماریزای پرندگان موجب التهاب کیسه های هوایی، سپتی سمی و عموماً دیگر بیماری های خارج روده ای در ماکیان، بوقلمون و دیگر گونه های پرندگان می ش...
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