PMID- 15237612
OWN - NLM
STAT- MEDLINE
DCOM- 20040910
LR  - 20161124
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 49
IP  - 9
DP  - 2004
TI  - Use of headspace solid-phase microextraction to characterize odour compounds in 
      subsurface flow constructed wetland for wastewater treatment.
PG  - 89-98
AB  - A headspace solid-phase microextraction (HS-SPME) preconcentration method was 
      applied to the analysis of some of the major odorous compounds occurring in 
      wastewater using GC/MS or GC/NPD detection. The detection limit for volatile 
      amines, volatile fatty acids, and volatile alkylsulphides ranged from 3 to 100, 2 
      to 150, and 0.0006 to 0.035 microg/L, respectively. The SPME method was used to 
      examine the fate of odorous compounds in the subsurface flow constructed wetlands 
      (SFCW) operated under different hydraulic loading rate (HLR), bed aspect ratio, 
      and granular medium size. Among the experimental conditions evaluated in the SFCW 
      beds, HLR was found to be the most important factor influencing the evolution of 
      the studied compounds. There were also significant differences among bed types in 
      the behaviour of ammonia (NH3), acetic acid (Ac), isovaleric acid (IsoA), 
      propionic acid (PrA), and dimethylsulphide. Aspect ratio and medium granular size 
      were minor factors influencing SFCW performance. The major odour compounds by 
      mass in the effluent of SFCW with different operational conditions were NH3 and 
      Ac. Further removal of these two compounds is considered as very important from 
      the viewpoint of chemical composition. On the other hand, Relative Odour 
      Intensity (ROI: ratio between the absolute concentration to the odour threshold 
      concentration) suggested that PrA and IsoA were the two major compounds 
      responsible for odour intensity. Thus, further removal of these two compounds is 
      viewed as very important for the effluent deodorization, especially for PrA. From 
      our results, this compound appears to be produced by processes occurring in the 
      SFCW.
FAU - Huang, Y
AU  - Huang Y
AD  - Department of Environmental Chemistry, CID-CSIC, Jordi Girona 18-26, E-08034 
      Barcelona, Spain.
FAU - Ortiz, L
AU  - Ortiz L
FAU - Garcia, J
AU  - Garcia J
FAU - Aguirre, P
AU  - Aguirre P
FAU - Mujeriego, R
AU  - Mujeriego R
FAU - Bayona, J M
AU  - Bayona JM
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Organic Chemicals)
RN  - 0 (Propionates)
RN  - JHU490RVYR (propionic acid)
SB  - IM
MH  - Biodegradation, Environmental
MH  - Chemistry Techniques, Analytical/methods
MH  - Environmental Monitoring/methods
MH  - Gas Chromatography-Mass Spectrometry
MH  - Odorants/*analysis
MH  - Organic Chemicals/analysis
MH  - Propionates/analysis
MH  - Waste Disposal, Fluid/*methods
MH  - Water Movements
MH  - *Water Purification
EDAT- 2004/07/09 05:00
MHDA- 2004/09/11 05:00
CRDT- 2004/07/09 05:00
PHST- 2004/07/09 05:00 [pubmed]
PHST- 2004/09/11 05:00 [medline]
PHST- 2004/07/09 05:00 [entrez]
PST - ppublish
SO  - Water Sci Technol. 2004;49(9):89-98.