نتایج جستجو برای: adsorption removal

تعداد نتایج: 188670  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
chen chen ting cheng yisu shi yuan tian

the work focuses on the removing of cu(ii) from aqueous solution by linde f(k) zeolite. the zeolite is synthesized from fly ash by hydrothermal process. the adsorption experiments discuss several factors including the optimal solution ph, zeolite dosage, adsorption temperature, adsorption kinetics and adsorption isotherm equation. the results show that, the optimal solution ph is 6 and the effi...

2015
P. B. Wagh

Mechanism of Indigo carmine dye adsorption on palm wood cellulose activated carbon (PWCAC) was studied. The use of low cost ecofriendly adsorbent has been investigated as an ideal alternative to the current expensive methods of removing dye from aqueous solution. The study is done by batch adsorption techniques. The quantitative adsorption kinetic and equilibrium parameter for indigo carmine dy...

2014
Farai Mutongo Olga Kuipa Pardon K. Kuipa

Potato peels which are a low cost, renewable agroindustry by-product were used for the removal of hexavalent chromium from aqueous effluents. Batch experiments were carried out with an artificial effluent comprising of potassium dichromate in deionised water. The effects of the initial hexavalent chromium concentration, dose of biosorbent, and removal kinetics were explored. An adsorbent dosage...

Journal: Nanochemistry Research 2018

In this research, nickel ferrite (NiFe2O4) nanoparticles (NFNs) are prepared through coprecipitation method, and applied for adsorption removal of a model organic pollutant, methyl orange (MO). The characterization of t...

آقایانی, احسان, اسلامی, اکبر, قارلقی, مصطفی, یزدانبخش, احمد رضا ,

Background and purpose: Municipal wastewater treatment plant effluents are amongst the main available water sources. Reuse of these effluents requires further standards beyond secondary standards. Therefore, removal of organic pollutants and some compounds such as nitrate and phosphate from effluents should be done at a greater extent. In this study, removal of these compounds from secondary ef...

Journal: :caspian journal of environmental sciences 2012
r. shemshadi

in the present study seven synthetic polymers were used as adsorbents for the removal of cd(ii) from aqueous solution. the equilibrium studies were systematically carried out in a batch process, covering various process parameters that include agitation time, adsorbent dosage, and ph of the aqueous solution. the analyzing system was an atomic absorption spectrometer (perkin-analyst 100). it was...

Journal: :journal of ultrafine grained and nanostructured materials 0
mohsen hosseinzadeh advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. seyyed ali seyyed ebrahimi advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. shahram raygan advanced magnetic materials research center, school of metallurgy and materials engineering, faculty of engineering, university of tehran, tehran, iran. seyed morteza masoudpanah school of metallurgy & materials engineering, iran university of science and technology (iust), tehran, iran.

in this study, the removal of cadmium and lead ions from aqueous solution by nanocrystalline magnetite was investigated. the nanocrystalline magnetite was synthesized by mechanochemical activation of hematite in a high energy planetary mill in argon atmosphere for 45 hours. the ability of the synthesized nanocrystalline magnetite for removal of cd(ii) and pb(ii) from aqueous solutions was studi...

Journal: :health scope 0
zahra derakhshan student research committee, shiraz university of medical sciences, shiraz, ir iran mohammad ali baghapour department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran; department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran. tel: +98-7117251001, fax: +98-7117260225 mojdeh ranjbar student research committee, shiraz university of medical sciences, shiraz, ir iran mohammad faramarzian department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran

background dyes are one of the most important industrial pollutants, especially in textile industries. many methods have been proposed in order to remove color from wastewater among which, adsorption is more acceptable due to the ability for its use in the large scale. objectives the objective of this study was to investigate pumice as an inexpensive adsorbent for removal of methylene blue from...

Journal: :Journal of Applied Sciences 2014

2008
Suresh Gupta

Cr(VI) is a highly toxic metal ion and considered a priority pollutant released from various chemical industries. Treatment methods to remove Cr(VI) from water and wastewater include chemical precipitation, ion exchange, membrane separation, electro-coagulation and reduction. These methods are not economically viable for large scale treatment of wastewater that is rich in Cr(VI). Adsorption is ...

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