Dinâmica e sazonalidade das variáveis físico-químicas e biológicas de uma lagoa facultativa
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Data
2014-10-30
Título da Revista
ISSN da Revista
Título de Volume
Editor
Ricardo Prado Abreu Reis
Resumo
This research had as main objective to investigate the involved processes
in facultative pond efficiency of A module in Trindade WWTP, a period of six months
with seasonal differences. The samples were collected at inlet and outlet of pond,
also on the surface, at different depths. Studies of profile were made from physicochemical
and biological variables. It was also made a principal component analysis,
to verify the efficiency of BOD and nutrients removal by phytoplankton. The pond
showed undergoes influence by seasonality of region. It was recorded DO profile of
type clinograde, and thermal stratification in three months of collect. In
two consecutive periods, were registered very low concentrations of DO (<1.0 mg.L1
). The principal component analysis showed that variations of the phytoplankton
community had a direct influence of pH, CND, and possibly with HDT. This
process was correlated with removal efficiency of BOD (r=0.85) and orthophosphate
(r=0.98). The ammonia removal was associated with temperature.
Descrição
v. 9, n.2, p. 10-23, out. 2014.
Palavras-chave
Tratamento de esgoto, Fitoplâncton, Remoção de nutrientes, Lagoa facultativa, Nutrients removal, Phytoplankton, Wastewater treatment, Facultative pond
Citação
D’ALESSANDRO, Emmanuel Bezerra; SAAVEDRA, Nora Kátia; SANTIAGO, Mariângela Fontes; SILVA, Maura Francisca da. Dinâmica e sazonalidade das variáveis físico-químicas e biológicas de uma lagoa facultativa. Revista Eletrônica de Engenharia Civil, Goiânia, v. 9, n. 2, p. 1-23, out. 2014. Disponível em: < http://www.revistas.ufg.br/index.php/reec/article/view/29447/17156>.