Please use this identifier to cite or link to this item: http://dspace.ucuenca.edu.ec/handle/123456789/30552
Title: A closer look on spatiotemporal variations of dissolved oxygen in waste stabilization ponds using mixed models
Authors: Alvarado Martinez, Andres Omar
Ho, Long
Keywords: WASTE STABILIZATION POND
HIGH ALTITUDE
MIXED MODEL
SPATIOTEMPORAL EFFECT
DISSOLVED OXYGEN CONTROL
ICA TECHNOLOGY
Issue Date: 2018
metadata.dc.type: ARTÍCULO
Abstract: 
Dissolved oxygen is an essential controlling factor in the performance of facultative and maturation ponds since both take many advantages of algal photosynthetic oxygenation. The rate of this photosynthesis strongly depends on the time during the day and the location in a pond system, whose roles have been overlooked in previous guidelines of pond operation and maintenance (O&M). To elucidate these influences, a linear mixed effect model (LMM) was built on the data collected from three intensive sampling campaigns in a waste stabilization pond in Cuenca, Ecuador. Within two parallel lines of facultative and maturation ponds, nine locations were sampled at two depths in each pond. In general, the output of the mixed model indicated high spatial autocorrelations of data and wide spatiotemporal variations of the oxygen level among and within the ponds. Particularly …
URI: http://dspace.ucuenca.edu.ec/handle/123456789/30552
http://www.mdpi.com/2073-4441/10/2/201/pdf
ISSN: 2073-4441
Appears in Collections:Artículos

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