Enhanced capture of elemental mercury by bamboo-based sorbents

Tan, Zengqiang; Xiang, Jun; Su, Sheng; Zeng, Hanqing; Zhou, Can; Sun, Lushi; Qiu, Jianrong

doi:10.1016/j.jhazmat.2012.08.053

Cited by 54 publications

(18 citation statements)

References 25 publications

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“…Hence, HBC is effective while BC fares acceptable. As for costs, HAP used in the experiment cost more than USD190 per kg, or USD190.000 per ton, while BC was reported at USD400-600 per ton in China 24 . The use of BC and HAP to make HBC thus reduces the cost drastically than using pure HAP.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Equilibrium and kinetic studies of sorption of 2.4-dichlorophenol onto 2 mixtures: bamboo biochar plus calcium sulphate (BC) and hydroxyapatite plus bamboo biochar plus calcium sulphate (HBC), in a fluidized bed circulation column

Alamin

Kaewsichan

2016

Polish Journal of Chemical Technology

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Sorption studies were carried out to investigate removal of 2.4-dichlorophenol (2.4-DCP) from aqueous solution in a fl uidized bed by two types of adsorbent mixtures: BC (Bamboo char plus Calcium sulphate), and HBC (Hydroxyapatite plus Bamboo char plus Calcium sulphate); both manufactured in ball shape. The main material bamboo char was characterized by FTIR, DTA and SEM. The adsorption experiments were conducted in a fl uidized bed circulation column. Adsorption, isotherms and kinetic studies were established under 180 min operating process time, at different initial 2.4-DCP solution concentrations ranging from 5-10 mg/L, and at different fl ow rates ranging from 0.25-0.75 L/min. The data obtained fi tted well for both the Langmuir and Freundlich isotherm models; indicating favorable condition of monolayer adsorption. The kinetics of both adsorbents complies with the pseudo second-order kinetic model. BC was proven a new effective composite and low cost adsorbent which can be applied in the fi eld of wastewater treatment, and it can also play an important role in industry water treatment.

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Section: Adsorption Kineticsmentioning

confidence: 99%

Equilibrium and kinetic studies of sorption of 2.4-dichlorophenol onto 2 mixtures: bamboo biochar plus calcium sulphate (BC) and hydroxyapatite plus bamboo biochar plus calcium sulphate (HBC), in a fluidized bed circulation column

Alamin

Kaewsichan

2016

Polish Journal of Chemical Technology

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“…7,8 We also recently reported that AC with a greater Hg 0 removal performance can be developed by treating ACs with HNO 3 to avoid the secondary emissions of hydrogen halides, which severely corrode pipes. 9 The Hg 0 removal performance was strongly affected by the flue gas compositions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Multi-component Flue Gases on Hg⁰ Removal over HNO₃-Modified Activated Carbon

Zhou

et al. 2015

Energy Fuels

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The impact of the coexistence of SO 2 and NO in flue gas on Hg 0 removal over HNO 3 -modified activated carbon (HNO 3 -AC) was evaluated. In addition, the effect of adding HCl on Hg 0 removal was also investigated. Hg 0 removal strongly depends upon the composition of the acidic gas. The results indicated that physically adsorbed SO 2 inhibited Hg 0 removal because of competitive adsorption, while chemically adsorbed SO 2 slightly promoted Hg 0 removal by generating HgSO 4 . The formation of N-containing active species, such as NO 2 , facilitates the removal of Hg 0 in the presence of NO to primarily produce Hg(NO 3 ) 2 or HgO. In comparison to the study performed under NO, SO 2 suppressed Hg 0 removal by weakening the amount of active NO 2 species that were generated over the samples. The presence of HCl strongly affected Hg 0 removal, and HgCl 2 and Hg 2 Cl 2 were produced in all of the flue gases containing HCl. In addition, the binding abilities between mercury and the different groups that formed on the samples follow the order: Cl-> S-> N-containing groups.

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“…KI(1)-Ti-PILC had two obvious peaks of I3 d3/2 and I3 d5/2 at 631.5 eV and 618.9 eV, respectively. According to the previous studies [49,50], the binding energy of 631.5 eV and 618.9 eV indicated the presence of I 2 and I À on the surface of KI(1)-Ti-PILC. From Fig.…”

Section: Effect Of No and So 2 + No On Hg 0 Removalmentioning

confidence: 62%

Removal of elemental mercury by titanium pillared clay impregnated with potassium iodine

Shen

Chen

Yue

2015

Microporous and Mesoporous Materials

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Enhanced capture of elemental mercury by bamboo-based sorbents

Cited by 54 publications

References 25 publications

Equilibrium and kinetic studies of sorption of 2.4-dichlorophenol onto 2 mixtures: bamboo biochar plus calcium sulphate (BC) and hydroxyapatite plus bamboo biochar plus calcium sulphate (HBC), in a fluidized bed circulation column

Equilibrium and kinetic studies of sorption of 2.4-dichlorophenol onto 2 mixtures: bamboo biochar plus calcium sulphate (BC) and hydroxyapatite plus bamboo biochar plus calcium sulphate (HBC), in a fluidized bed circulation column

Effects of Multi-component Flue Gases on Hg⁰ Removal over HNO₃-Modified Activated Carbon

Removal of elemental mercury by titanium pillared clay impregnated with potassium iodine

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Enhanced capture of elemental mercury by bamboo-based sorbents

Cited by 54 publications

References 25 publications

Equilibrium and kinetic studies of sorption of 2.4-dichlorophenol onto 2 mixtures: bamboo biochar plus calcium sulphate (BC) and hydroxyapatite plus bamboo biochar plus calcium sulphate (HBC), in a fluidized bed circulation column

Equilibrium and kinetic studies of sorption of 2.4-dichlorophenol onto 2 mixtures: bamboo biochar plus calcium sulphate (BC) and hydroxyapatite plus bamboo biochar plus calcium sulphate (HBC), in a fluidized bed circulation column

Effects of Multi-component Flue Gases on Hg0 Removal over HNO3-Modified Activated Carbon

Removal of elemental mercury by titanium pillared clay impregnated with potassium iodine

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Product

Resources

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Effects of Multi-component Flue Gases on Hg⁰ Removal over HNO₃-Modified Activated Carbon