Efficiency of removal in stabilization ponds II. Statistical analysis of K values

B. S. Mendes; M. J. do Nascimento; M. I. Pereira; G. Bailey; N. Lapa; J. Morais; J. S. Oliveira

doi:10.1016/0273-1223(95)00510-T

Efficiency of removal in stabilization ponds II. Statistical analysis of K values

B. S. Mendes, M. J. do Nascimento, M. I. Pereira, G. Bailey, N. Lapa, J. Morais, J. S. Oliveira

DCTB - Departamento de Ciências e Tecnologia da Biomassa (ex-GDEH)

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The analytical values obtained from five WSP systems located in different ecoclimatic zones in the centre and South of Portugal, were subjected to a statistical analysis of K and K₂₀ values (as used in the van Hoff-Arrhenius equation) utilizing an analysis of variance and a vectorial analysis of principal components. Significant differences between K and K₂₀ values in facultative, maturation ponds and in the whole system were verified. The projection of the first principal components of eigenvectors made possible the classification of the stations, showing the existence of similarities and discrepancies in their removal BOD kinetics behaviour. The K₂₀ value must be estimated and taken into account for the design of waste stabilization ponds.

Original language	English
Pages (from-to)	231-238
Number of pages	8
Journal	Water Science and Technology
Volume	31
Issue number	12
DOIs	https://doi.org/10.1016/0273-1223(95)00510-T
Publication status	Published - 1 Jan 1995

Keywords

Ecoclimate
efficiency of removal
K
statistical analysis
waste stabilization ponds

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10.1016/0273-1223(95)00510-T

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title = "Efficiency of removal in stabilization ponds II. Statistical analysis of K values",

abstract = "The analytical values obtained from five WSP systems located in different ecoclimatic zones in the centre and South of Portugal, were subjected to a statistical analysis of K and K20 values (as used in the van Hoff-Arrhenius equation) utilizing an analysis of variance and a vectorial analysis of principal components. Significant differences between K and K20 values in facultative, maturation ponds and in the whole system were verified. The projection of the first principal components of eigenvectors made possible the classification of the stations, showing the existence of similarities and discrepancies in their removal BOD kinetics behaviour. The K20 value must be estimated and taken into account for the design of waste stabilization ponds.",

keywords = "Ecoclimate, efficiency of removal, K, statistical analysis, waste stabilization ponds",

author = "Mendes, {B. S.} and {do Nascimento}, {M. J.} and Pereira, {M. I.} and G. Bailey and N. Lapa and J. Morais and Oliveira, {J. S.}",

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T1 - Efficiency of removal in stabilization ponds II. Statistical analysis of K values

AU - Mendes, B. S.

AU - do Nascimento, M. J.

AU - Pereira, M. I.

AU - Bailey, G.

AU - Lapa, N.

AU - Morais, J.

AU - Oliveira, J. S.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The analytical values obtained from five WSP systems located in different ecoclimatic zones in the centre and South of Portugal, were subjected to a statistical analysis of K and K20 values (as used in the van Hoff-Arrhenius equation) utilizing an analysis of variance and a vectorial analysis of principal components. Significant differences between K and K20 values in facultative, maturation ponds and in the whole system were verified. The projection of the first principal components of eigenvectors made possible the classification of the stations, showing the existence of similarities and discrepancies in their removal BOD kinetics behaviour. The K20 value must be estimated and taken into account for the design of waste stabilization ponds.

AB - The analytical values obtained from five WSP systems located in different ecoclimatic zones in the centre and South of Portugal, were subjected to a statistical analysis of K and K20 values (as used in the van Hoff-Arrhenius equation) utilizing an analysis of variance and a vectorial analysis of principal components. Significant differences between K and K20 values in facultative, maturation ponds and in the whole system were verified. The projection of the first principal components of eigenvectors made possible the classification of the stations, showing the existence of similarities and discrepancies in their removal BOD kinetics behaviour. The K20 value must be estimated and taken into account for the design of waste stabilization ponds.

KW - Ecoclimate

KW - efficiency of removal

KW - K

KW - statistical analysis

KW - waste stabilization ponds

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DO - 10.1016/0273-1223(95)00510-T

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AN - SCOPUS:0028825212

SN - 0273-1223

VL - 31

SP - 231

EP - 238

JO - Water Science and Technology

JF - Water Science and Technology

IS - 12

ER -

Efficiency of removal in stabilization ponds II. Statistical analysis of K values

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Keywords

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