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TREATMENT OF SEPTIC TANK SLUDGE IN A VERTICAL FLOW CONSTRUCTED WETLAND SYSTEM REA
Andrade,Cynthia F.; Sperling,Marcos Von; Manjate,Elias S..
ABSTRACT: The study consisted of the evaluation of the treatment of septic tank sludge in a vertical constructed wetland system (CW), built according to the first stage of the French system. The system operated also for sewage treatment and one of the beds (area of 29.1 m2, height of the support medium of 0.7 m and planted with Tifton 85 grass, Cynodon dactylon Pers), began to receive the application of sludge from clean-pit trucks once a week. The percolated liquid was directed to post-treatment in the other two beds of the French system. The application of the raw sludge had average hydraulic loading rate of 13.1 m3/m2.year and solids loading rate of 81 kgTS/m2.year. The system improved the quality of percolated liquid in terms of carbonaceous and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Constructed wetlands; Septic tank; Post-treatment; Sludge.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400811
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