نتایج جستجو برای: lungmuir adsorption isotherm

تعداد نتایج: 56224  

Journal: :archives of hygiene sciences 0
parvin gharbani department of chemistry, ahar branch, islamic azad university, ahar, iran. ali mehrizad department of chemistry, tabriz branch, islamic azad university, tabriz, iran.

background & aims of the study: p-chloronitrobenzene is a benzoic compound that widely used in many chemical industrials. p-chloronitrobenzene may be absorbed through the skin and is suspected to causing cancer. so, developing an easy method to remove of it from the environment is necessary. equilibrium isotherms and adsorption kinetics of p-chloronitrobenzene onto modified silk waste were stud...

This paper describes the performance of Granular Activated Carbon (GAC) to adsorb and separate glucose and maltose solutes from the industrial effluents by adsorption process. In this study, the capability of Granular Activated Carbon (GAC) to adsorb glucose and maltose were experimentally examined. Commercial GAC (mesh 12-20), supplied by Sigma Aldrich company in...

2005
NICK D. HUTSON RALPH T. YANG

The Dubinin-Radushkevitch (D-R) equation, which was originally proposed as an empirical adaptation ~d'the Polanyi adsorption potential theory, has been the fundamental equation to quantitatively describe the adsorption td gases and vapors by microporous sorbents. The equation, based on the postulate that the mechanism for adsorption in micropores is that of pore-filling rather than layer-by-lay...

2013
Mohamed Ahmed Mahmoud

Adsorption process is an important technique in separation processes, which is used in heavy metals removal from aqueous solution. Orange peel has been investigated for the adsorption of uranium ions from aqueous solution. The parameters of pH, contact time, initial uranium ion concentration, temperature and adsorbent dose have been investigated in batch experiments. The adsorption kinetics wer...

Journal: :iranian journal of environmental sciences 0
razia sultana graduate school of life and environmental sciences, university of tsukuba, japan katsuichiro kobayashi department of agricultural chemistry, bangladesh agricultural university, bangladesh

the adsorption study was conducted on three japanese soils with different soil properties to characterize the adsorption pattern of arsenic (as). double tube method was used to find out the effect of soil moisture levels on as adsorption. for this study, besides double tube method, conventional batch method also was used. the as adsorption showed two phase kinetics. an initial and rapid adsorpt...

2017
Ke-Deng Zhang Fang-Chang Tsai Ning Ma Yue Xia Huan-Li Liu Xue-Qing Zhan Xiao-Yan Yu Xiang-Zhe Zeng Tao Jiang Dean Shi Chang-Jung Chang

Zirconium based metal organic frameworks (Zr-MOFs) have become popular in engineering studies due to their high mechanical stability, thermostability and chemical stability. In our work, by using a theoretical kinetic adsorption isotherm, we can exert MOFs to an acid dye adsorption process, experimentally exploring the adsorption of MOFs, their external behavior and internal mechanism. The resu...

Journal: :Analytical chemistry 2001
B P Nelson T E Grimsrud M R Liles R M Goodman R M Corn

Surface plasmon resonance (SPR) imaging is a surface-sensitive spectroscopic technique for measuring interactions between unlabeled biological molecules with arrays of surface-bound species. In this paper, SPR imaging is used to quantitatively detect the hybridization adsorption of short (18-base) unlabeled DNA oligonucleotides at low concentration, as well as, for the first time, the hybridiza...

2015
Fidelis Ngugi

In this study, adsorption of copper from aqueous solutions was investigated using mangrove biomass from the Kenyan Coast. The efficacy of mangrove biomass on the removal of copper (II) ions from aqueous solutions was investigated in single state in batch mode with respect to effects of initial pH, temperature, initial concentration of the metal ion, adsorbent dosage and contact time on metal io...

Journal: :Journal of Environmental Engineering (Transactions of AIJ) 2005

Journal: :iranian journal of earth science 0
m.t. hamed mosavian ferdowsi university of mashhad, chemical engineering department i khazaei islamic azad university, ghouchan branch m aliabadi islamic azad univerisity, birjand branch

adsorption capacity of cr (vi) onto cousinia eryngioides boiss, activated carbon was investigated in a batch system by considering the effects of various parameters like contact time, initial concentration, ph, temperature, agitation speed, absorbent dose and particle size. cr (vi) removal is ph dependent and found to be maximum at ph 2.0. the amounts of cr (vi) adsorbed increased with increase...

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