scholarly journals Studies on thermal desorption method of organic solvent. IV Estimation of thermal desorption curve and desorption efficiency of organic solvent from activated carbon.

1987 ◽  
pp. 922-927 ◽  
Author(s):  
Hajime HORI ◽  
Isamu TANAKA ◽  
Takashi AKIYAMA
Keyword(s):  
Activated Carbon ◽  
Organic Solvent ◽  
Thermal Desorption ◽  
Desorption Curve ◽  
Iv Estimation ◽  
Desorption Efficiency ◽  
Desorption Method

scholarly journals Thermal Desorption of Organic Solvent from Activated Carbon for Determination of Vapor Concentration in Work Environment

1989 ◽  
Vol 11 (4) ◽  
pp. 347-360
Author(s):  
Hajime HORI ◽  
Isamu TANAKA ◽  
Takashi AKIYAMA ◽  
Yasuhiko ARAI
Keyword(s):  
Activated Carbon ◽  
Organic Solvent ◽  
Work Environment ◽  
Thermal Desorption ◽  
Vapor Concentration

Comparison of chemical and thermal regeneration of aromatic compounds on exhausted activated carbon

1997 ◽  
Vol 35 (7) ◽  
pp. 279-285 ◽  
Author(s):  
P. C. Chiang ◽  
E. E. Chang ◽  
J. S. Wu
Keyword(s):  
Molecular Structure ◽  
Activated Carbon ◽  
Physicochemical Properties ◽  
Adsorption Capacity ◽  
Aromatic Compounds ◽  
Thermal Regeneration ◽  
Desorption Efficiency ◽  
Chemical Regeneration

In this investigation, nine typical compounds, i.e., phenol, 2-aminophenol, aniline, 2-chlorophenol, chlorobenzene, β-naphthol, naphthalene, α-naphthylamine and α-chloronaphthalene were introduced to evaluate the effects of the molecular structure and physicochemical properties of these selected adsorbates on the adsorption capacity and desorption efficiency of the activated carbon. Both the thermal and chemical regeneration methods were employed to compare the regeneration efficiencies among these adsorbates and adsorbent.

scholarly journals Sequential extraction and thermal desorption of mercury from contaminated soil and tailings from Mongolia

2012 ◽  
Vol 10 (5) ◽  
pp. 1565-1573 ◽  
Author(s):  
Pavel Coufalík ◽  
Pavel Krásenský ◽  
Marek Dosbaba ◽  
Josef Komárek
Keyword(s):  
Sequential Extraction ◽  
Thermal Desorption ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Speciation Analysis ◽  
Water Soluble ◽  
Mercury Species ◽  
Different Temperatures ◽  
Acidic Conditions ◽  
Desorption Method

AbstractMercury forms in contaminated environmental samples were studied by means of sequential extraction and thermal desorption from the solid phase. The sequential extraction procedure involved the following fractions: water soluble mercury, mercury extracted in acidic conditions, mercury bound to humic substances, elemental Hg and mercury bound to complexes, HgS, and residual mercury. In addition to sequential extraction, the distribution of mercury species as a function of soil particles size was studied. The thermal desorption method is based on the thermal decomposition or desorption of Hg compounds at different temperatures. The following four species were observed: Hg0, HgCl2, HgS and Hg(II) bound to humic acids. The Hg release curves from artificial soils and real samples were obtained and their applicability to the speciation analysis was considered.

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