نتایج جستجو برای: absorption isotherm

تعداد نتایج: 137675  

In This applicable research, investigating absorption of process ofErythrosine dye on Copper oxide Nano particles Adsorbent was studied. First, prepared dyeconcentrations of 6, 8 and 12 mg L-1 and then effects of parameters such as concentrations ofinitial dye, time and pH on dye absorption efficiency were investigated.The dyeconcentrations in different samples were measured via spectrophotomet...

ژورنال: طلوع بهداشت یزد 2012
ابوئیان جهرمی, محدثه , احرامپوش, محمد حسن, زارع, حمید رضا, سازواری, مهری , سلمانی ندوشن, محمد حسین, عسکری شاهی, محسن, قانعیان, محمد تقی,

 Background: The primary coolant is an essential cooling medium used to control heat in a nuclear power plant. During the oxidation process, Nickel may be released in the primary coolant which increases its contamination. The operational problems and high cost of treatment necessitate the research for some newer methods. The aim of this research is investigation of nickel removal from synthetic...

ایوزی, حسین, باریک بین, بهنام, شهریاری, طاهر,

Background and purpose: Dyes in textile wastewater are amongst the main sources of environmental pollutants that are harmful for environment and human health. This study was designed for experimental evaluation of Reactive Blue 19 absorption from aqueous solutions by dried powder, modified powder, and modified carbon derived from Azolla aquatic plant carbon filiculoides, as a low cost adsorbent...

2005
Ulrich Luttge George G. Laties

Sumtmary. The influence of several tincoutplers of oxidative phosphorvlatioii and inhibitors of terminal electron transport was stutdied on absorption and long distance transport of both K and Cl at concentrations within each range of the dual isotherm typical of ion uptake by maize roots. At low concentrations in the range of system 1, the system considered to implement ion movement through th...

Journal: :Plant physiology 1967
U Luttge G G Laties

The influence of several uncouplers of oxidative phosphorylation and inhibitors of terminal electron transport was studied on absorption and long distance transport of both K and C1 at concentrations within each range of the dual isotherm typical of ion uptake by maize roots. At low concentrations in the range of system 1, the system considered to implement ion movement through the plasma membr...

2013
Bulent Armagan Fatih Toprak

Comparison analysis of linear least-square method and non-linear method of three widely used isotherms (Langmuir, Freundlich, and Redlich-Peterson) were examined to experiment with Remazol Red (C.I. 18221) onto pistachio nut shells at a solution temperature of 293 K. All three isotherm equations showed a better fit to the experimental equilibrium data. The results show that the Langmuir model s...

2013
Chiachung Chen

The sorption isotherm is important information for evaluating the ability of an adsorption system to treat the industrial waste water. In this study, eleven datasets from literatures were selected and three two-parameter and threeparameter equations were used to evaluate adsorption systems. Quantitative criteria included six error functions, and the quantitative criterion was residual plots. Is...

Journal: :Turkish Journal of Chemistry 2022

In this study, preconcentration conditions of trace amounts copper ions were investigated with solid-phase extraction (SPE) method by synthesizing activated carbon-based ion-imprinted sorbent (Cu(II)-IAC) a novel and selective approach. Flame atomic absorption spectrometry (FAAS) was used for the determination metal concentrations. For characterization sorbents, scanning electron microscopy, en...

Journal: :Journal of contaminant hydrology 2012
Gautham P Jeppu T Prabhakar Clement

Analytical isotherm equations such as Langmuir and Freundlich isotherms are widely used for modeling adsorption data. However, these isotherms are primarily useful for simulating data collected at a fixed pH value and cannot be easily adapted to simulate pH-dependent adsorption effects. Therefore, most adsorption studies currently use numerical surface-complexation models (SCMs), which are more...

ژورنال: طلوع بهداشت یزد 2016
رضایی, شیما, ملکوتیان, محمد,

Introduction: Colored Wastewater due to various environmental problems should be treated before discharge to the environment. Colors have many variety and different methods used for color wastewater treatment, the most widely methods that used is the absorption process by the low-cost adsorbent. To determine the isotherms and kinetics adsorption Process, absorption of methylene blue cationic dy...

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