PMID- 23831791
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20140414
LR  - 20130909
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 463-464
DP  - 2013 Oct 1
TI  - Constructed wetlands with light expanded clay aggregates for agricultural 
      wastewater treatment.
PG  - 454-61
LID - S0048-9697(13)00704-3 [pii]
LID - 10.1016/j.scitotenv.2013.06.052 [doi]
AB  - Constructed wetlands (CWs) are receiving a renewed attention as a viable 
      phytotechnology for treating agricultural wastewaters and for the removal of more 
      specific pollutants, in particular recalcitrant ones. In this work, the 
      performance of CW mesocosms using light expanded clay aggregates (LECA) as the 
      bed's substrate and planted with Phragmites australis was investigated for 
      treatment of olive mill wastewater (OMW), swine wastewater (SW) contaminated with 
      oxytetracycline and water contaminated with herbicide MCPA 
      (2-methyl-4-chlorophenoxyacetic acid). Both wastewaters (OMW and SW) initially 
      presented high organic matter content and total suspended solids which were 
      removed by the system with efficiencies higher than 80%. Removal of polyphenols 
      in OMW and nitrogen compounds in SW also showed similar or higher efficiencies in 
      comparison with other treatment systems reported in the literature. The 
      antibiotic oxytetracycline was completely removed from SW within the assay period 
      in unplanted LECA beds, but planted beds allowed a significantly faster removal. 
      In regard to water contaminated with MCPA, the results showed that LECA has a 
      large sorption capacity for this herbicide (removal efficiencies of 56-97%). In 
      general, considerably higher pollutant removal efficiencies were obtained when 
      plants were used (up to 28% higher). The results obtained are indicative that CWs 
      with LECA as substrate may be an adequate option for agricultural wastewater 
      treatment.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Dordio, A
AU  - Dordio A
AD  - Chemistry Department, University of Evora, Rua Romao Ramalho 59, 7000-676 Evora, 
      Portugal; IMAR - Marine and Environmental Research Centre, University of Evora, 
      Rua Romao Ramalho 59, 7000-676 Evora, Portugal. Electronic address: 
      avbd@uevora.pt.
FAU - Carvalho, A J P
AU  - Carvalho AJ
LA  - eng
PT  - Journal Article
DEP - 20130703
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
OTO - NOTNLM
OT  - LECA
OT  - MCPA
OT  - Olive mill wastewater
OT  - Oxytetracycline
OT  - Phragmites
OT  - Swine wastewater
EDAT- 2013/07/09 06:00
MHDA- 2013/07/09 06:01
CRDT- 2013/07/09 06:00
PHST- 2013/04/04 00:00 [received]
PHST- 2013/05/29 00:00 [revised]
PHST- 2013/06/11 00:00 [accepted]
PHST- 2013/07/09 06:00 [entrez]
PHST- 2013/07/09 06:00 [pubmed]
PHST- 2013/07/09 06:01 [medline]
AID - S0048-9697(13)00704-3 [pii]
AID - 10.1016/j.scitotenv.2013.06.052 [doi]
PST - ppublish
SO  - Sci Total Environ. 2013 Oct 1;463-464:454-61. doi: 
      10.1016/j.scitotenv.2013.06.052. Epub 2013 Jul 3.