PMID- 19143310
OWN - NLM
STAT- MEDLINE
DCOM- 20090203
LR  - 20190911
IS  - 1001-0742 (Print)
IS  - 1001-0742 (Linking)
VI  - 20
IP  - 9
DP  - 2008
TI  - Organic micro-pollutant removal in liquid-phase using carbonized silk cotton 
      hull.
PG  - 1046-54
AB  - Phenolic compounds constitute one of the major pollutants in the modern world. 
      Although many physical and chemical treatment technologies for their removal 
      exist, most of them are economically not feasible. The present study was aimed at 
      using silk cotton hull, a potent agricultural waste as an adsobent for removal of 
      2,4-dichlorophenol (2,4-DCP), which was used as a model phenolic compound. The 
      process parameters were investigated and optimized conditions were determined. 
      The equilibrium time was found to be 60 and 80 min for 10 and 20 mg/L and 100 min 
      for 30 and 40 mg/L 2,4-DCP concentrations, respectively. Among the kinetic models 
      applied, pseudo-second order model fitted well. The maximum adsorption capacity 
      was 16.0 mg/g by Langmuir isotherm. Acidic pH was found favorable for the 
      adsorption of 2,4-DCP. Studies on pH effect and desorption seemed to show that 
      chemisorption played a major role in the adsorption process. In thermodynamic 
      study, the change in entropy (DeltaS0) and heat of adsorption (DeltaH0) of silk 
      cotton hull carbon (SCHC) was estimated as 14.01 J/(mol x K) and 3.04 kJ/mol, 
      respectively. SCHC as adsorbent for removal of 2,4-DCP from aqueous solution, is 
      effective, inexpensive, indigenous, reusable, has low treatment time and is 
      easily available in large quantities as waste there by significantly lowers the 
      cost of wastewater treatment.
FAU - Sathishkumar, M
AU  - Sathishkumar M
AD  - Department of Food Science and Technology, Institute of Agricultural Science and 
      Technology, Chonbuk National University, Chonju 561-756, Republic of Korea. 
      sathishkumar77@gmail.com
FAU - Binupriya, A R
AU  - Binupriya AR
FAU - Kavitha, D
AU  - Kavitha D
FAU - Selvakumar, R
AU  - Selvakumar R
FAU - Sheema, K K
AU  - Sheema KK
FAU - Choi, J G
AU  - Choi JG
FAU - Yun, S E
AU  - Yun SE
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Netherlands
TA  - J Environ Sci (China)
JT  - Journal of environmental sciences (China)
JID - 100967627
RN  - 0 (Chlorophenols)
RN  - 0 (Environmental Pollutants)
RN  - 7440-44-0 (Carbon)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Adsorption
MH  - Carbon/*chemistry
MH  - Ceiba/*chemistry
MH  - Chlorophenols/*chemistry
MH  - Environmental Pollutants/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Kinetics
MH  - Microscopy, Electron, Scanning
MH  - Temperament
MH  - Time Factors
EDAT- 2009/01/16 09:00
MHDA- 2009/02/04 09:00
CRDT- 2009/01/16 09:00
PHST- 2009/01/16 09:00 [entrez]
PHST- 2009/01/16 09:00 [pubmed]
PHST- 2009/02/04 09:00 [medline]
AID - 10.1016/s1001-0742(08)62148-8 [doi]
PST - ppublish
SO  - J Environ Sci (China). 2008;20(9):1046-54. doi: 10.1016/s1001-0742(08)62148-8.