Adsorptive Bromate Removal from Aqueous Solution by Commercial Strongly Basic Resin Impregnated with Hydrated Ferric Oxide (HFO): Kinetics and Equilibrium Studies

2016 ◽  
Vol 61 (3) ◽  
pp. 1305-1312 ◽  
Author(s):  
Sibei Li ◽  
Qi Yang ◽  
Yu Zhong ◽  
Fei Chen ◽  
Ting Xie ◽  
...  
2015 ◽  
Vol 91 (3) ◽  
pp. 693-704 ◽  
Author(s):  
Xialei You ◽  
Diana Guaya ◽  
Adriana Farran ◽  
César Valderrama ◽  
José Luis Cortina

2012 ◽  
Vol 518-523 ◽  
pp. 2740-2744
Author(s):  
Ying Li ◽  
Chang Hai Li ◽  
Dong Mei Jia ◽  
Yue Jin Li

A newly modified resin can be impregnated with hydrated ferric oxide on the base of D301 resin. The article involved batch experiments to investigate the effect of concentration, contact time, pH and temperature. The results showed that the maximum adsorption was found at 6 h,3.0 pH and 298 K temperature. The maximum adsorption capacity was 961.95 mg/g at 1200 mg/L initial β-naphthalenesulfonic acid concentration. The equilibrium adsorption was fitted by Temkin isotherm.


2017 ◽  
Vol 73 (3) ◽  
Author(s):  
Osasona Ilesanmi ◽  
Adebayo Albert Ojo ◽  
Okronkwo Elvis Afemafuna ◽  
Johnson Jonathan ◽  
Osunlana Oluronke

Author(s):  
Conrad K. Enenebeaku ◽  
Nnaemeka J. Okorocha ◽  
Uchechi E. Enenebeaku ◽  
Ikechukwu C. Ukaga

The potential of white potato peel powder for the removal of methyl red (MR) dye from aqueous solution was investigated. The adsorbent was characterized by FTIR and SEM analysis. Batch adsorption studies were conducted and various parameters such as contact time, adsorbent dosage, initial dye concentration, pH and temperature were studied to observe their effects in the dye adsorption process. The optimum conditions for the adsorption of MR onto the adsorbent (WPPP) was found to be contact (80 mins), pH (2) and temperature (303K) for an initial MR dye concentration of 50mg/l and adsorbent dose of 1.0g. The experimental equilibrium adsorption data of the (MR) dye fitted best and well to the Freundlich isotherm model. The maximum adsorption capacity was found to be 30.48mg/g for the adsorption of MR. The kinetic data conforms to the pseudo – second order kinetic model.


2008 ◽  
Vol 47 (11) ◽  
pp. 3957-3962 ◽  
Author(s):  
Qingjian Zhang ◽  
Bingcai Pan ◽  
Weiming Zhang ◽  
Bingjun Pan ◽  
Quanxing Zhang ◽  
...  

2020 ◽  
Author(s):  
Edu J. Inam ◽  
John Bassey Edet ◽  
Patrick E. Akpan ◽  
Kufre E. Ite

Abstract The surface characteristics as well as adsorption potential of activated cow bone char for the removal of methylene blue (MB) from aqueous solution were investigated. Physical characteristics of the adsorbent revealed a large surface area, low pore volume, reduced ash and moisture contents, which have been identified as good adsorption characteristics. The surface of the adsorbent was predominated by mesopores with a few microporous structures as well as the presence of carbonates, phosphates, silicates and hydroxyl groups which are characteristic of the apatite phase. Adsorption efficiency for the removal of MB was observed to be influenced by pH, adsorbent dosage as well as initial dye concentrations. Equilibrium adsorption data was best described by the Freundlich isotherm with a good correlation coefficient suggesting multilayer adsorption of the dye molecules on the surface of the adsorbent. Based on the drive for reduced cost, removal efficiency and availability, activated carbon from cow bone could be a promising adsorbent for methylene blue-laden effluent that could be utilized in small and large industrial applications.


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