The Adsorption Characteristics of Phytochemical on Supporters

2013 ◽  
Vol 781-784 ◽  
pp. 919-922
Author(s):  
Thararat Mankit ◽  
Anurak Petiraksakul ◽  
Pijit Jiemvarangkul
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherm ◽  
Adsorption Mechanism ◽  
Adsorption Equilibrium ◽  
Liquid Product ◽  
Equilibrium Adsorption ◽  
Equilibrium Time ◽  
Company Limited ◽  
Langmuir Constants ◽  
Langmuir And Freundlich Models

The objective of this research is to study equilibrium adsorption, adsorption isotherm and the amount of the phytochemical called Micronice Bio MEX 3, which is adsorbed on various supporters. Micronice is a biodegradable chemical liquid product collected from Technogreen Company Limited. The supporters in this work are activated carbon, zeolite and brick which are used as adsorbents. The supporters were immersed in the Micronice with various periods to find out their adsorption equilibrium time. The results show that the adsorption equilibrium time for all supporters is 60 minutes and the mass adsorption percentages of activated carbon, zeolite and brick are 14.05%, 1.58% and 2.24%, respectively. An adsorption isotherm can be described by the Langmuir and Freundlich models. The Freundlich constants of activated carbon, zeolite and brick are KF= 4.76 x10-8(mg/g)(L/mg)1/n, 7.15x10-8(mg/g)(L/mg)1/nand 1.10x10-4(mg/g)(L/mg)1/n, n = 0.772, 0.619 and 0.922, respectively. The Langmuir constants of activated carbon, zeolite and brick are KL= 756.62 L/mg, 12,924 L/mg and 3,918.60 L/mg, qo= 1,428.57 mg/g, 44.25 mg/g and 303.030 mg/g. The results present that the adsorption mechanism of all supporters can be well described by both Langmuir and Freundilch models and the best supporter is activated carbon.

scholarly journals An adsorption isotherm model for adsorption performance of silver-loaded activated carbon

2017 ◽  
Vol 21 (4) ◽  
pp. 1645-1649 ◽  
Author(s):  
Xue-Feng Yan ◽  
Xue-Rong Fan ◽  
Qiang Wang ◽  
Yue Shen
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherm ◽  
Adsorption Mechanism ◽  
Activated Carbon Fiber ◽  
Isotherm Model ◽  
Adsorption Performance ◽  
Equilibrium Concentrations ◽  
Two Parameters ◽  
Langmuir And Freundlich Models ◽  
Adsorption Quantity

The adsorption mechanism of methylene blue onto silver-loaded activated carbon fiber is different from those by Langmuir and Freundlich models. In this paper, an adsorption isotherm model is established with two parameters to describe nanosilver impact and load amount of silver nanoparticles, respectively, on adsorb-ability. In the process, the absorbance value of equilibrium solution was measured by spectrophotometry, and thus equilibrium concentrations and equilibrium adsorption quantity were calculated. The model was determined according to the fitting curve and comparison was made between the theoretical prediction and experimental data, showing relative good consistence.

scholarly journals PENJERAPAN LOGAM KADMIUM (Cd2+) DENGAN ADSORBEN CANGKANG TELUR BEBEK YANG TELAH DIAKTIVASI

2013 ◽  
Vol 2 (3) ◽  
pp. 29-32
Author(s):  
Krisnawati ◽  
Jasinda ◽  
Iriany
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Adsorption Isotherm ◽  
Adsorption Kinetics ◽  
Adsorption Equilibrium ◽  
Adsorption Kinetic ◽  
Equilibrium Time ◽  
First Order ◽  
As Adsorption ◽  
Cadmium Adsorption

Harzadous waste water is the waste that can be harmful to human’s health. One of heavy metals that contains in harzadous waste is cadmium. This research aims to investigate the characteristic of cadmium adsorption, equilibrium time, percentage adsorption, adsorption kinetic, adsorption isotherm and capacity of cadmium adsorption by using duck egg’s shell adsorbent. Duck egg’s shell adsorbent that had been activated at 600 oC were put into cadmium solution and mixed together. Every 10 minutes experimental samples were analyzed using AAS. The results indicated that percentage adsorption increases and the longer equilibrium time will be reached with an increase of adsorbent dosage. The Lagergen first order Models was applied as adsorption kinetics model and the Bangham Models was applied as adsorption isotherms models.

scholarly journals Isoterm Adsorpsi Rhodamin B Pada Arang Aktif Kayu Linggua

Jurnal MIPA ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 40
Author(s):  
Stero H. Roring ◽  
Mariska M. Pitoi ◽  
Jemmy Abidjulu
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherm ◽  
Rhodamine B ◽  
Wood Waste ◽  
Batch Experiment ◽  
Adsorption Coefficient ◽  
Freundlich Model ◽  
Rhodamin B ◽  
Langmuir And Freundlich Models ◽  
Better Than

Telah dilakukan penelitian adsorpsi rhodamin B pada arang aktif yang dibuat dari kayu linggua. Penelitian ini bertujuan untuk menentukan koefisien adsorpsi arang aktif limbah gergajian kayu linggua terhadap zat warna rhodamin B dengan menggunakan isoterm adsorpsi Langmuir dan Freundlich. Penelitian dilakukan secara batch di mana 0,1; 0,2; 0,4; 0,7 dan 1 gram arang aktif dimasukkan ke dalam labu Erlenmeyer terpisah yang masing-masing telah berisi 100 mL larutan rhodamin B 100 ppm. Campuran kemudian diperlakukan di atas magnetic stirrer selama 50 menit dan selanjutnya konsentrasi larutan rhodamin B dianalisis menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan bahwa isoterm adsorpsi rhodamin B pada arang aktif kayu linggua lebih mengikuti isoterm adsorpsi Freundlich dengan koefisien adsorpsi 2,999x10-4 dan nilai intensitas adsorpsi 1,459.Adsorption isotherm of rhodamine B by activated carbon made from linggua wood waste was investigated. The adsorption isotherm was analyzed by Langmuir and Freundlich models. The isotherm was measured by batch experiment where 0,1; 0,2; 0,4; 0,7; and 1,0 grams where added into the separated Erlenmeyer flasks filled with 100 mL of 100 ppm rhodamine B. The mixtures were then treated on magnetic stirrers for 50 minutes followed by rhodamine B analysis using spectrophotometer UV-Vis. The result showed that the isotherm followed the Freundlich model better than Langmuir with the Freundlich adsorption coefficient of 2,999x10-4 and the Freundlich exponent of 1,459.

Study on the Properties of Fe3+ Sorption to SrZr4(PO4)6 Materials

2013 ◽  
Vol 634-638 ◽  
pp. 362-366
Author(s):  
Jin Yang ◽  
Lin Hua Zhu ◽  
Tian Si
Keyword(s):  
Adsorption Capacity ◽  
Room Temperature ◽  
Adsorption Equilibrium ◽  
Equilibrium Adsorption ◽  
Equilibrium Time ◽  
Optimum Dosage ◽  
Equilibrium Adsorption Capacity

SrZr4(PO4)6 (SZP) materials were synthesized by precipitate method and dispersed by small molecular solvent. The properties of adsorption materials SZP to Fe3+ have been examined. The equilibrium adsorption indicated that the adsorption equilibrium time of SZP to Fe3+ was 16h at room temperature, and the equilibrium adsorption capacity was 0.318~0.924mg Fe3+/gSZP. The adsorption capacity of 60°C is less than 20°C’s. In addition, the optimum dosage of the SZP adsorbent was 3g , and the corresponding adsorption ratio is 50% .

Study on the Adsorption of Trichloroethylene in Water on Activated Carbon and Activated Carbon Fibers

2010 ◽  
Vol 113-116 ◽  
pp. 1021-1024 ◽  
Author(s):  
Da Song He ◽  
Cun Ping Liu ◽  
Yong Fu Yuan ◽  
Xiu Ying Li
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherm ◽  
Carbon Fibers ◽  
Langmuir Model ◽  
Activated Carbon Fibers ◽  
Freundlich Model ◽  
Efficient Process ◽  
Langmuir And Freundlich Models

The removal of trichloroethylene (TCE) from water using activated carbon fibers (ACF) and activated carbon (AC) was investigated. Adsorption, as an efficient process to remove TCE from water was chosen; in particular with ACF and AC as adsorbents. The results showed that physisorption play important roles for adsorption of TCE onto activated carbon fibers, while the less important chemisorption. Langmuir and Freundlich models were then employed to correlate the equilibria data. The Langmuir model best described the AC adsorption isotherm of TCE, with R2 0.9942. Freundlich model best fitted the ACF adsorption isotherm of TCE, with R2 0.9978.

Use Activated Carbon Prepared from Some Palm Waste to Remove Co(II) and Cu(II) from Sewage Water

2020 ◽  
pp. 101-105
Keyword(s):  
Activated Carbon ◽  
Metal Ions ◽  
Adsorption Equilibrium ◽  
Low Cost ◽  
Sewage Water ◽  
Tree Leaves ◽  
Equilibrium Time ◽  
Palm Waste

This study included the use of palm waste such as fiber and tree leaves palm, as low cost adsorbents for removal of Cu(II) and Co(II) from sewage water via preparation of activated carbon. The results are showed that the adsorption equilibrium time was 35 and 45 min for both metals by tree leaves and fiber respectively. The obtained results indicated that over pH (6.5) there is an increased optimum of adsorption for both metal ions. The study showed that (0.4 g) of adsorbent is very ideal to obtain the best adsorption for both studied ions. The capacity of the adsorbents Co(II) to adsorb high than Cu(II).

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