Biorreactor empacado con materiales estabilizados (BEME), como pretratamiento para lixiviados de rellenos sanitarios
Por:
Bautista-Ramírez J.A., Gutiérrez-Hernández R.F., Nájera-Aguilar H.A., Artínez-Salinas R.I.M., Vera-Toledo P., Araiza-Aguilar J.A., Méndez-Novelo R., Rojas-Valencia M.N.
Publicada:
1 ene 2018
Categoría:
Chemical engineering (miscellaneous)
Resumen:
The wide spectrum of bio-recalcitrant polluting molecules present in the landfill leachate, make it a hard to address pollution problem. A recently tested technology for its treatment is based on the use of aged refuse. The present paper is aimed to highlight the potential of a recently tested technology for the treatment of leachates, based on the use of an aged refuse filled bioreactor. The aged refuse, extracted from the sanitary landfill of the city of Tuxtla Gutiérrez, Chiapas, Mexico, were characterized with granulometric parameters, moisture, volatile solids, ash and volumetric weight. A microbiological characterization of the aged refuse was also carried out, which allowed identifying the presence of eight species, related to the degradation and mineralization of organic compounds. The bioreactor was operated for one year under four hydraulic leachate loads (10.5, 18, 26 and 41 L/ m3-d). The maximum average effciency of the system reached 80% in both COD and color, this was achieved when the system was operated with a hydraulic load of 18 L/ m3-d. The values of COD, BOD, color and biodegradability index of the final effuent were 959 mg/L, 72 mg/L, 1685 Pt-Co, and 0.07, respectively, being prepared for a final purification stage. © 2018, Universidad Autonoma Metropolitana Iztapalapa. All rights reserved.
Filiaciones:
Bautista-Ramírez J.A.:
Universidad de Ciencias y Artes de Chiapas, Ciudad Universitaria, Libramiento Norte Poniente s/n, Col. Lajas, Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29000, Mexico
Gutiérrez-Hernández R.F.:
Departamento de Ingeniería Química y Bioquímica, Instituto Tecnológico de Tapachula, Tecnológico Nacional de México, Km. 2 carretera a Puerto Madero s/n, Tapachula, Chiapas C.P. 30700, Mexico
Nájera-Aguilar H.A.:
Universidad de Ciencias y Artes de Chiapas, Ciudad Universitaria, Libramiento Norte Poniente s/n, Col. Lajas, Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29000, Mexico
Artínez-Salinas R.I.M.:
Universidad de Ciencias y Artes de Chiapas, Ciudad Universitaria, Libramiento Norte Poniente s/n, Col. Lajas, Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29000, Mexico
Vera-Toledo P.:
Universidad de Ciencias y Artes de Chiapas, Ciudad Universitaria, Libramiento Norte Poniente s/n, Col. Lajas, Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29000, Mexico
Araiza-Aguilar J.A.:
Universidad de Ciencias y Artes de Chiapas, Ciudad Universitaria, Libramiento Norte Poniente s/n, Col. Lajas, Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29000, Mexico
Méndez-Novelo R.:
Universidad Autónoma de Yucatán, Depto. de Ing. Ambiental de la Facultad de Ing, Av. Industrias no contaminantes por anillo periférico Nte. s/n, Mérida, Yucatán, Mexico
Rojas-Valencia M.N.:
Universidad Nacional Autónoma de México, Instituto de Ingeniería, Circuito Escolar s/n, Ciudad Universitaria, D.F, Delegación Coyoacán, México C.P. 04510, Mexico
|