PMID- 20951495
OWN - NLM
STAT- MEDLINE
DCOM- 20110310
LR  - 20240109
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 185
IP  - 1
DP  - 2011 Jan 15
TI  - Scale up of 2,4-dichlorophenol removal from aqueous solutions using Brassica 
      napus hairy roots.
PG  - 269-74
LID - 10.1016/j.jhazmat.2010.09.028 [doi]
AB  - Chlorophenols are harmful pollutants, frequently found in the effluents of 
      several industries. For this reason, many environmental friendly technologies are 
      being explored for their removal from industrial wastewaters. The aim of the 
      present work was to study the scale up of 2,4-dichlorophenol (2,4-DCP) removal 
      from synthetic wastewater, using Brassica napus hairy roots and H(2)O(2) in a 
      discontinuous stirred tank reactor. We have analyzed some operational conditions, 
      because the scale up of such process was poorly studied. High removal 
      efficiencies were obtained (98%) in a short time (30 min). When roots were 
      re-used for six consecutive cycles, 2,4-DCP removal efficiency decreased from 98 
      to 86%, in the last cycle. After the removal process, the solutions obtained from 
      the reactor were assessed for their toxicity using an acute test with Lactuca 
      sativa L. seeds. Results suggested that the treated solution was less toxic than 
      the parent solution, because neither inhibition of lettuce germination nor 
      effects in root and hypocotyl lengths were observed. Therefore, we provide 
      evidence that Brassica napus hairy roots could be effectively used to detoxify 
      solutions containing 2,4-DCP and they have considerable potential for a large 
      scale removal of this pollutant. Thus, this study could help to design a method 
      for continuous and safe treatment of effluents containing chlorophenols.
CI  - Copyright (c) 2010 Elsevier B.V. All rights reserved.
FAU - Angelini, Vanina A
AU  - Angelini VA
AD  - Departamento de Biologia Molecular, FCEFQN, Universidad Nacional de Rio Cuarto, 
      5800 Rio Cuarto, Cordoba, Argentina.
FAU - Orejas, Joaquin
AU  - Orejas J
FAU - Medina, Maria I
AU  - Medina MI
FAU - Agostini, Elizabeth
AU  - Agostini E
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100917
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Chlorophenols)
RN  - 0 (Pesticide Residues)
RN  - 0 (Soil Pollutants)
RN  - 0 (Solutions)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Bioreactors
MH  - Brassica napus/*chemistry
MH  - Chlorophenols/analysis/*isolation & purification/toxicity
MH  - Hydrogen Peroxide/analysis
MH  - Lactuca/physiology
MH  - Oxidation-Reduction
MH  - Pesticide Residues/analysis/*isolation & purification/toxicity
MH  - Plant Roots/chemistry
MH  - Seeds
MH  - Soil Pollutants/analysis/*isolation & purification/toxicity
MH  - Solutions
EDAT- 2010/10/19 06:00
MHDA- 2011/03/11 06:00
CRDT- 2010/10/19 06:00
PHST- 2010/05/26 00:00 [received]
PHST- 2010/08/18 00:00 [revised]
PHST- 2010/09/09 00:00 [accepted]
PHST- 2010/10/19 06:00 [entrez]
PHST- 2010/10/19 06:00 [pubmed]
PHST- 2011/03/11 06:00 [medline]
AID - S0304-3894(10)01187-8 [pii]
AID - 10.1016/j.jhazmat.2010.09.028 [doi]
PST - ppublish
SO  - J Hazard Mater. 2011 Jan 15;185(1):269-74. doi: 10.1016/j.jhazmat.2010.09.028. 
      Epub 2010 Sep 17.