نتایج جستجو برای: cost adsorbent

تعداد نتایج: 394389  

2004
Sergey Mikhalovsky

Hemoadsorption, or hemoperfusion (HP) was introduced by H. Yatzidis in early 1960s [1]. It is an extracorporeal technique that cleanses blood by passing it through an adsorbent column. Active carbon (AC) was the first choice due to its undisputable superiority as an adsorbent over other materials. Although the initial results were very successful, this procedure induced a series of complication...

Journal: :Journal of hazardous materials 2010
A Ahmadpour M Zabihi M Tahmasbi T Rohani Bastami

In the present investigation, three different solid wastes namely almond green hull, eggplant hull, and moss were initially treated and used as adsorbents for the adsorption of strontium ion from aqueous solutions. Adsorbent types and chemical treatments are proved to have effective roles on the adsorption of Sr(II) ion. Among the three adsorbents, almond green hull demonstrated strong affinity...

Akbartabar, Iman , Nasirizadeh, Navid , Tayebi, Habib-Allah , Yazdanshenas, Mohammad Esmail ,

Background and Purpose: This study aimed to investigate the adsorption of Acid Blue 62 (AB62) as an anionic dye from aqueous solution onto as SBA-15/Polyaniline (SBA-15/PAni) mesoporous nanocomposite a low-cost adsorbent and feasible. Materials and Methods: Fourier transform infra-red spectroscopy (FTIR), Filed Emission Scanning Electron Microscope (FESEM), Transmission Electron Microscope (TE...

2014
Nadereh Rahbar Alireza Jahangiri Shahin Boumi Mohammad Javad Khodayar

BACKGROUND Nowadays, removal of heavy metals from the environment is an important problem due to their toxicity. OBJECTIVES In this study, a modified method was used to synthesize chitosan-coated magnetite nanoparticles (CCMN) to be used as a low cost and nontoxic adsorbent. CCMN was then employed to remove Hg(2+) from water solutions. MATERIALS AND METHODS To remove the highest percentage ...

2015
Kovo G. Akpomie Folasegun A. Dawodu

Unmodified montmorillonite clay was utilized as a low cost adsorbent for the removal of heavy metals from a contaminated automobile effluent. Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy were used to characterize the adsorbent. Batch sorption experiments were performed at an optimum effluent pH of 6.5, adsorbent dose of 0.1 g, particle size of 100 ...

2011
C. THEIVARASU S. CHANDRA

Low cost activated carbon prepared from elephant dung was used as an eco-friendly adsorbent for the removal of the textile dye Rhodamine B from an aqueous solution. The adsorbent was characterized by Scanning Electron Microscope (SEM), X-Ray Diffraction(XRD), Thermo gravimetric(TG) and Fourier Transform Infra red (FT-IR)analysis. Batch adsorption experiments were carried out by varying the init...

Journal: :journal of physical & theoretical chemistry 2011
h. dashti khavidaki h. aghaie m. r. shishehbore

in this study, the adsorption of thallium (iii) ion from aqueous solutions onto modified znonanopowder as a fairly low cost adsorbent has been investigated in batch mode. it was found thatmodification of the adsorbent was essential for obtaining the significant adsorption percentage. theadsorbent modified by sodium phosphate solution. the effect of experimental parameters such asinitial ph of s...

Journal: :journal of nanostructures 2015
f. b. sarand s. hassani m. fazli k. haghbeen

classical xerogels are robust, inexpensive and nontoxic materials with low-ordered nanoporous structures. in water streams where the ph is higher than the point of zero charge, the surface of classical xerogels such as tetraethoxy orthosilan (teos) xerogel is negatively charged. it was assumed that a xerogel can work as a strong adsorbent for metal ions without further modification. therefore, ...

2016
P. C. Emenike

411 ABSTRACT: The expensive nature of metal ions detoxification from wastewater have restricted the use of conventional treatment technologies. Cheap, alternative measures have been adopted to eliminate metal contamination, and adsorptions using agricultural adsorbents seem to be the way forward. The use of agricultural adsorbents for cadmium (II), copper (II) and lead (II) ion removal has gain...

2018
Mehdi Fazlzadeh Mohammad Ansarizadeh Mostafa Leili

Among various water and wastewater treatment methods, adsorption techniques are widely used to remove certain classes of pollutants due to its unique features. Thus, the aim of this data article is to synthesize zero valent iron nanoparticles (NZVI) from Nettle leaf extract by green synthesis method as an environmentally friendly technique, and to evaluate it's efficiency in the removal of furf...

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