نتایج جستجو برای: modified activated carbon

تعداد نتایج: 727793  

رماوندی, بهمن, فاضلیان, میرحسین,

Abstract Background and purpose: Phenols are considered as priority pollutants because of their potential harm to human health. So, they should be removed from water resources to avoid further pollutions. The aim of this research was to evaluate phenol adsorption from aqueous solution using activated carbon provided from Populus alba. Materials and methods: In this experimental study we use...

Parachlorophenol has an extended usage in refineries, petrochemical industries, insecticide, and herbicide manufacturing industries. Tire a solid waste, which is disposed in large amounts each year, a large number of them in landfills can cause irreparable environmental impacts. Consequently lots of efforts were done to produce activated carbon from used tires. Activated carbon was made in labo...

Journal: :Caliphate Journal of Science and Technology 2022

Activated carbon (AC) is a versatile adsorbent that used in the treatment of waste water, colour, odour removal and CO2 capture. Annogeissus leiocarpus one abundant agricultural precursor can be for production activated carbon. Characterization was done to investigate some proximate parameters. The modifications were made by soaking AC 40% H2SO4 NaHCO3 24hours ration 1:3 w/v. FT-IR SEM conducte...

Journal: :Molecules 2013
Damien James Jean-Marc Escudier Magali Szlosek-Pinaud Eric Fouquet

The methyl transfer reaction from activated monomethyltin, via a modified Stille coupling reaction, was studied under "ligandless" conditions on fully deprotected 5'-modified nucleosides and one dinucleotide. The reaction was optimized to proceed in a few minutes and quantitative yield, even under dilute conditions, thus affording a rapid and efficient new method for oligonucleotide labelling w...

2008
Thomas Anish Johnson Shiv Prasad

This study reviews the use of agricultural and agro-processing industry wastes as metal adsorbents from wastewater. Modified materials displayed better adsorption capacity and capability of some was comparable with that of commercial activated carbons and synthetic resins. Agricultural wastes are low-cost adsorbents and can be viable alternatives to activated carbon for treatment of metal-conta...

بانشی, محمدرضا, رحمان زاده, الهام, فقیهی زرندی, علی, موسوی, سید غلامرضا, گلبابایی, فریده,

Introduction: Hexavalent chromium (VI) is a very strong oxidizing agent that, despite its many uses in various industries, duration of the exposure can lead to lung cancer, deep wounds (in the hands, arm, tongue and palate), nasal septum perforation, burning and inflammation in the nose, lung and upper respiratory tract, asthma, contact dermatitis, damage to the kidneys and liver, and skin alle...

Journal: :iranian journal of toxicology 0
آتنا رفیعی پور athena rafieepour arak university of medical sciences فرشید قربانی شهنا farshid ghorbani shahna hamedan university of medical sciences زهرا هاشمی zahra hashemi ahvaz university of medical sciences فرهاد قمری farhad ghamari arak university of medical sciences

background: nanotechnology is a new approach that has been lionized in recent years. one of its applications is its consumption as an absorbent. in this study, the single-wall carbon nanotubes (swcnts) were used as an absorbent for sampling benzene in the air. materials and methods: for this study, swcnts manufactured by iran and skc’s activated charcoal were used for sampling benzene vapors. p...

Journal: :international journal of environmental research 2012
z.h. fan h.n. zhang x. xu b. liu d.d. zhang

dissolved organic nitrogen (don) can react with disinfectants to produce numerous disinfectionbyproducts (dbps), particularly nitrogen-containing dbps (n-dbps), and produce serious adverse effectson public health. widely used biological processes in drinking water treatment can increase don in effluents,and enhance these ill effects. this study investigated don in a full-scale two-stage ozonati...

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