نتایج جستجو برای: pseudo second order

تعداد نتایج: 1443601  

2016

Quaternized palm kernel shell was successfully prepared by reacting with N-(3-chloro-2hydroxypropyl)trimethylammonium chloride in basic condition. Adsorption experiments of Reactive Red E (RRE) dye were carried out in single batch system studied at various initial concentration, contact time and pH at 25°C. It was found that at pH 4 quaternized palm kernel shell showed the highest dye removal p...

2011
C. THEIVARASU S. MYLSAMY N. SIVAKUMAR

The removal of Malachite Green (MG) by Cocoa (Theobroma cacao) Shell Activated Carbon (CSAC) was investigated in present study. Adsorption studies were performed by batch experiments as a function of process parameters such as initial pH, contact time, initial concentration and adsorbent dose. A comparison of kinetic models applied to the adsorption of MG on CSAC was evaluated for the pseudo-fi...

Journal: :Journal of hazardous materials 2008
B H Hameed D K Mahmoud A L Ahmad

In this paper, the ability of coconut bunch waste (CBW), an agricultural waste available in large quantity in Malaysia, to remove basic dye (methylene blue) from aqueous solution by adsorption was studied. Batch mode experiments were conducted at 30 degrees C to study the effects of pH and initial concentration of methylene blue (MB). Equilibrium adsorption isotherms and kinetics were investiga...

Journal: :international journal of environmental research 2010
r. rajesh kannan m. rajasimman n. rajamohan b. sivaprakash

in the present study, hydrilla verticillata biomass was investigated as a novel biosorbent for the uptake of basic dye malachite green from its aqueous solution. kinetic and equilibrium studies were carried out in batch process. batch adsorption experiments were conducted to study the effect of ph, temperature, sorbent dosage, initial dye concentration, and contact time for the removal malachit...

2014
Bilal ACEMİOĞLU Murat ERTAŞ Mehmet Hakkı ALMA Mustafa USTA

Cotton stalk (CS), cotton waste (CW), and cotton dust (CD), which are cotton wastes, were used as adsorbents to study the adsorption kinetics of methylene blue from aqueous solution. Kinetics of the batch adsorption experiment was investigated according to the pseudo-first order, the pseudo-second order, and the intraparticle diffusion models used commonly in the literature. The effects of the ...

Journal: :journal of physical and theoretical chemistry 0
zohreh khoshraftar science and research branch, islamic azad university, tehran, iran ali shamel department of chemistry, ardabil branch, islamic azad university, ardabil, iran.

pollution of water resources by various pollutants is nowadays a global environmental issue. among the different type of water pollutants, dye represents a major polluting group. in this study, azolla filiculides roots have been used for adsorption of malachite green (mg), a cationic dyed from aqueous solution. in this study, effects of operating parameters such as initial concentration of dye ...

ژورنال: سلامت و محیط زیست 2013
سردار, مهدیه , شیخ محمدی, امیر,

MicrosoftInternetExplorer4 Background and Objectives: Antibiotics are potential pollutants that represent an important environmental problem because of their toxic effects on the food chain and aqueous streams. The objective of this research was to study the adsorption of penicillin G on to chestnut shell as an inexpensive adsorbent.  Materials and Methods: This study was performed at lab...

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