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- Title
EFICIENCIA DE UN HUMEDAL DE FLUJO SUBSUPERFICIAL PARA EL TRATAMIENTO DE AGUAS RESIDUALES DEL EMPACADO DE HORTALIZAS.
- Authors
Navarro, Amado E.; García, Yasmín; Vázquez, Antonio; Marrugo, José L.
- Abstract
In order to treat the wastewater from vegetable peeling of a packing plant located in Atlixco, Mexico, it was used a system of horizontal subsurface flow constructed wetlands at mesocosms level, comprising a settler, a cell with river gravel and planted with Phragmites australis, followed by two parallel cells with gravel and volcanic rock, planted with Typha latifolia, was used. Operating in semi-batch mode, the hydraulic residence time in each cell was 5 days. The wastewater characteristics and treatment outcomes were highly variable depending on the processed vegetable. The percentage reduction of the Chemical and Biochemical Oxygen Demand Oxygen (COD/BOD) was 77/48 with high organic loads of wastewater (BOD > 2000 mg L-1) and 92/94 with low loads (BOD > 1200 mg L-1). Other analyzed parameters (pH, electrical conductivity, redox potential, NO2-, NO3- and NH4+) showed acceptable values at the system output.
- Subjects
ATLIXCO (Mexico); WETLANDS; SEWAGE purification; VEGETABLE packaging; BIOCHEMICAL oxygen demand; PHRAGMITES australis; ELECTRIC conductivity
- Publication
Avances en Ciencias e Ingeniería, 2013, Vol 4, Issue 1, p39
- ISSN
0718-8706
- Publication type
Article