نتایج جستجو برای: cu (ii) removal

تعداد نتایج: 764996  

Journal: :advances in environmental technology 0
bahareh sadeghalvad phd candidate in department of mining & metallurgical engineering, amirkabir university of technology, tehran, iran mojtaba torabzadehkashi b.a student in department of mining & metallurgical engineering, amirkabir university of technology, tehran, iran amir reza azadmehr assistance professor department of mining & metallurgical engineering, amirkabir university of technology, tehran, iran. [email protected], address: amirkabir university of technology, 424 hafez avenue, tehran, iran

heavy metals such as cu(ii) and pb(ii) are among the hazardous pollutants that lead to severe ecological problems and have a toxic effect on living organisms. the removal of cu(ii) and pb(ii) by iranian bentonite experiment were conducted in single component and multi component systems. the bentonite from the birjand area was characterized by x-ray diffraction pattern and ftir spectroscopy. the...

Journal: :journal of heat and mass transfer research(jhmtr) 2014
somayeh nobahar mehdi parvini hossein eisazadeh

in this article, preparation of polypyrrole and its nanocomposites as adsorbents werediscussed and the capability of separation of copper ions from aqueous solution were studied.polypyrrole was prepared by chemical oxidative polymerization method of pyrrole usingfecl3 as an oxidant. the removal of cu (ii) was investigated using ppy, ppy/tio2 andppy/tio2/dhsna nanocomposites. the products were i...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
hongbo xu dan-dan liu lu he na liu guiling ning

the poly(ethyleneimine)-functionalized silica has been developed successfully as an effective adsorbent for the adsorption removal of cu(ii) ions from electroplating wastewater. the influences of ph, contact time and initial concentration of cu(ii) ions on the adsorption capacity and the effect of adsorbent dosage on the removal efficiency of cu(ii) ions from electroplating wastewater were inve...

Dan-dan Liu Guiling Ning Hongbo Xu, Lu He Na Liu

The poly(ethyleneimine)-functionalized silica has been developed successfully as an effective adsorbent for the adsorption removal of Cu(II) ions from electroplating wastewater. The influences of pH, contact time and initial concentration of Cu(II) ions on the adsorption capacity and the effect of adsorbent dosage on the removal efficiency of Cu(II) ions from electroplatin...

Arash Javanshir Khoei, Hassan Parvizimosaed , Mahsa Tahergorabi, Mehran Moslemi, Parisa Delfieh, Raziyeh Zandipak , Seyed Mehdi Hosseini, Soheil Sobhanardakani,

Background: Heavy metals have been recognized as harmful environmental pollutant known to produce highly toxic effects on different organs and systems of both humans and animals. The aim of this paper is to evaluate the adsorption potential of chitosan for the removal of Pb(II), Fe(II) and Cu(II) ions from aqueous solutions. Methods: This study was conducted in laboratory scale. In this paper ...

Journal: :iranian journal of toxicology 0
سهیل سبحان اردکانی soheil sobhanardakani . department of the environment, college of basic sciences, hamedan branch, islamic azad university, hamedan, iran. رضیه زندی پاک raziyeh zandipak msc environment, young researchers & elite club, hamedan branch, islamic azad university, hamedan, iran. حسن پرویزی مساعد hassan parvizimosaed young researchers & elite club, hamedan branch, islamic azad university, hamedan, iran. آرش جوانشیرخویی arash javanshir khoei department of fisheries, college of agriculture & natural resources, university of tehran, karaj, iran. مهران مسلمی mehran moslemi department of fisheries, jouybar branch, islamic azad university, jouybar, iran. مهسا طاهرگورابی mahsa tahergorabi department of public health, kerman university of medical sciences, kerman, iran. سیدمهدی حسینی

background: heavy metals have been recognized as harmful environmental pollutant known to produce highly toxic effects on different organs and systems of both humans and animals. the aim of this paper is to evaluate the adsorption potential of chitosan for the removal of pb(ii), fe(ii) and cu(ii) ions from aqueous solutions. methods: this study was conducted in laboratory scale. in this paper c...

   In this study, cadmium sulfide nanoparticles (CdS NPs) were prepared, characterized and used as a new adsorbent for simultaneous removal of Pb(II) and Cu(II) ions from aqueous solutions. Using a batch adsorption method, the effects of solution pH, contact time, adsorbent dose, and temperature were studied and optimized. Removal efficiencies, higher than 98% were obtained for both the met...

2015
Roshanak Khandanlou Mansor B. Ahmad Hamid Reza Fard Masoumi Kamyar Shameli Mahiran Basri Katayoon Kalantari

Rice straw/magnetic nanocomposites (RS/Fe3O4-NCs) were prepared via co-precipitation method for removal of Pb(II) and Cu(II) from aqueous solutions. Response surface methodology (RSM) was utilized to find the optimum conditions for removal of ions. The effects of three independent variables including initial ion concentration, removal time, and adsorbent dosage were investigated on the maximum ...

Journal: :advances in environmental technology 0
saeed almohammadi department of chemical engineering, mahshahr branch, islamic azad university, mahshahr, iran masoomeh mirzaei department of chemical engineering, mahshahr branch, islamic azad university, mahshahr, iran

in this work, the removal of copper from an aqueous solution by granular activated carbon (gac) in the presence of competitor ions was studied. a batch adsorption was carried out and different parameters such as ph, contact time, initial copper concentration and competitor ions concentration were changed to determine the optimum conditions for adsorption. the optimum ph required for maximum ads...

Removal of Cu(II) from aqueous solution supplies is possible through the process of adsorption. One of these processes involves the preparation of magnetic nanoparticles on activated carbon (AC). Adsorbed coppre ions on the surface of Fe3O4-AC are separated from aqueous solutions using external magnetic fields. In the present study, magnetic nanoparticles were synthesized ...

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