PMID- 32250834
OWN - NLM
STAT- MEDLINE
DCOM- 20200408
LR  - 20221207
IS  - 1095-8630 (Electronic)
IS  - 0301-4797 (Linking)
VI  - 262
DP  - 2020 May 15
TI  - Principal component analysis as a criterion for monitoring variable organic load 
      of swine wastewater in integrated biological reactors UASB, SABF and HSSF-CW.
PG  - 110386
LID - S0301-4797(20)30321-2 [pii]
LID - 10.1016/j.jenvman.2020.110386 [doi]
AB  - The multivariate analysis to optimize the parameters of wastewater is essential 
      to reduce costs. The aim of this study was to evaluate the use of multivariate 
      and conventional analysis in biological system composed by upflow anaerobic 
      sludge blanket (UASB), submerged aerated biological filters (SABF) and horizontal 
      subsurface flow constructed wetland (HSSF-CW) reactors in the organic 
      stabilization of swine wastewater (SW). Four loads were used in the system with 
      alteration by COD concentration of untreated SW, and the data were evaluated by 
      principal components (PCA). The average efficiency of COD and BOD removal 
      increased from 45% in phase I to 67% in phase IV in the UASB, SABF and HSSF-CW 
      reactors. The principal component analysis promoted the reduction of 13 original 
      variables to 5, 8 and 5 principal components in the UASB, SABF and HSSF-CW 
      reactors, respectively, optimizing the dynamics of interpretation of the data 
      that influenced the most the stability of the wastewater system across the four 
      phases. There was a strong negative effect of oxygen concentrations in the SABF 
      reactor in relation to organic variables, optimizing the biological mechanisms of 
      the HSSF-CW and, therefore, enabling better decision making and cost reduction 
      with analysis at treatment plants.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Oliveira, Jacineumo Falcao de
AU  - Oliveira JF
AD  - Department of Water Resources and Sanitation, Federal University of Lavras, UFLA, 
      Minas Gerais, 37200-000, Brazil. Electronic address: jacineumo@gmail.com.
FAU - Fia, Ronaldo
AU  - Fia R
AD  - Department of Water Resources and Sanitation, Federal University of Lavras, UFLA, 
      Minas Gerais, 37200-000, Brazil.
FAU - Fia, Fatima Resende Luiz
AU  - Fia FRL
AD  - Department of Water Resources and Sanitation, Federal University of Lavras, UFLA, 
      Minas Gerais, 37200-000, Brazil.
FAU - Rodrigues, Fernando Neris
AU  - Rodrigues FN
AD  - Divinopolis Unit, Minas Gerais State University, UEMG, Minas Gerais, 31630-900, 
      Brazil.
FAU - Matos, Mateus Pimentel de
AU  - Matos MP
AD  - Department of Water Resources and Sanitation, Federal University of Lavras, UFLA, 
      Minas Gerais, 37200-000, Brazil.
FAU - Siniscalchi, Luciene Alves Batista
AU  - Siniscalchi LAB
AD  - Department of Water Resources and Sanitation, Federal University of Lavras, UFLA, 
      Minas Gerais, 37200-000, Brazil.
LA  - eng
PT  - Journal Article
DEP - 20200306
PL  - England
TA  - J Environ Manage
JT  - Journal of environmental management
JID - 0401664
RN  - 0 (Sewage)
RN  - 0 (Waste Water)
SB  - IM
MH  - Anaerobiosis
MH  - Animals
MH  - Bioreactors
MH  - Principal Component Analysis
MH  - *Sewage
MH  - Swine
MH  - Waste Disposal, Fluid
MH  - *Wastewater
MH  - Wetlands
OTO - NOTNLM
OT  - Agroindustrial wastewater
OT  - Biological treatment
OT  - Multivariate analysis
OT  - Organic stabilization
COIS- Declaration of competing interests The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/04/07 06:00
MHDA- 2020/04/09 06:00
CRDT- 2020/04/07 06:00
PHST- 2019/11/21 00:00 [received]
PHST- 2020/02/21 00:00 [revised]
PHST- 2020/03/02 00:00 [accepted]
PHST- 2020/04/07 06:00 [entrez]
PHST- 2020/04/07 06:00 [pubmed]
PHST- 2020/04/09 06:00 [medline]
AID - S0301-4797(20)30321-2 [pii]
AID - 10.1016/j.jenvman.2020.110386 [doi]
PST - ppublish
SO  - J Environ Manage. 2020 May 15;262:110386. doi: 10.1016/j.jenvman.2020.110386. 
      Epub 2020 Mar 6.