PMID- 12931875
OWN - NLM
STAT- MEDLINE
DCOM- 20031106
LR  - 20190922
IS  - 0047-2425 (Print)
IS  - 0047-2425 (Linking)
VI  - 32
IP  - 4
DP  - 2003 Jul-Aug
TI  - Use of additives to enhance the removal of phenols from water treated with 
      horseradish and hydrogen peroxide.
PG  - 1222-7
AB  - Use of additives, such as polyethylene glycol (PEG), selected surfactants, 
      chitosan gel, or activated carbon, has been shown to enhance enzymatic treatment 
      of water polluted with organic compounds. In this study, additives were used to 
      facilitate the removal of 2,4-dichlorophenol (2,4-DCP) from water using minced 
      horseradish (Armoracia rusticana P. Gaertn. et al.) as a carrier of peroxidase 
      activity. The specific objectives of the study were to (i) enhance the pollutant 
      removal activity of minced horseradish by the addition of PEG and other additives 
      (e.g., Tween 20, Triton X-100, and rhamnolipid); (ii) eliminate colored reaction 
      products by the addition of chitosan; and (iii) eliminate color by amending 
      treated water with activated carbon. The disappearance of 2,4-DCP in 
      horseradish-treated water samples amended with PEG or various surfactants 
      (75-90%) was greatly increased over that observed in nonamended samples (29%). 
      The effect of PEG depended on its average molecular weight. As indicated by 
      visible spectrophotometry, enclosing horseradish pieces between two sealed 
      chitosan films completely eliminated colored reaction products; however, the 
      decolorization was accompanied by a reduction in 2,4-DCP removal (from 95 to 
      60%). On the other hand, commercially available activated carbon completely 
      removed colored reaction products from the treated water without reducing the 
      removal efficiency. Based on the results obtained, it can be concluded that the 
      use of additives may considerably improve the quality of wastewater treated by 
      plant materials.
FAU - Tonegawa, Masami
AU  - Tonegawa M
AD  - Laboratory of Soil Biochemistry, Center for Bioremediation and Detoxification, 
      The Pennsylvania State Univ., 129 Land and Water Building, University Park, PA 
      16802, USA.
FAU - Dec, Jerzy
AU  - Dec J
FAU - Bollag, Jean-Marc
AU  - Bollag JM
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - J Environ Qual
JT  - Journal of environmental quality
JID - 0330666
RN  - 0 (Anthelmintics)
RN  - 0 (Biopolymers)
RN  - 0 (Chelating Agents)
RN  - 0 (Chlorophenols)
RN  - 0 (Oxidants)
RN  - 0 (Solvents)
RN  - 1398-61-4 (Chitin)
RN  - 3WJQ0SDW1A (Polyethylene Glycols)
RN  - 7440-44-0 (Carbon)
RN  - 9012-76-4 (Chitosan)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - EC 1.11.1.- (Horseradish Peroxidase)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Anthelmintics/*isolation & purification/metabolism
MH  - Armoracia/chemistry
MH  - Biopolymers/chemistry
MH  - Carbon/chemistry
MH  - Chelating Agents
MH  - Chitin/*analogs & derivatives/chemistry
MH  - Chitosan
MH  - Chlorophenols/*isolation & purification/metabolism
MH  - Horseradish Peroxidase/*pharmacology
MH  - Hydrogen Peroxide/*chemistry
MH  - Oxidants/*chemistry
MH  - Oxidation-Reduction
MH  - Polyethylene Glycols/chemistry
MH  - Solvents/chemistry
MH  - Water Purification/*methods
EDAT- 2003/08/23 05:00
MHDA- 2003/11/07 05:00
CRDT- 2003/08/23 05:00
PHST- 2003/08/23 05:00 [pubmed]
PHST- 2003/11/07 05:00 [medline]
PHST- 2003/08/23 05:00 [entrez]
AID - 10.2134/jeq2003.1222 [doi]
PST - ppublish
SO  - J Environ Qual. 2003 Jul-Aug;32(4):1222-7. doi: 10.2134/jeq2003.1222.