Next Article in Journal
Population Aging, Household Savings and Asset Prices: A Study Based on Urban Commercial Housing Prices
Previous Article in Journal
Climate Impacts on Capital Accumulation in the Small Island State of Barbados

Treatment of Low Biodegradability Leachates in a Serial System of Aged Refuse-Filled Bioreactors

Facultad de Ingeniería, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte Poniente No. 1150, Col. Lajas, Maciel, Tuxtla Gutiérrez, Chiapas, C.P. 29000, Mexico
Departamento de Ingeniería Química y Bioquímica, Tecnológico Nacional de México-Instituto Tecnológico de Tapachula, Km. 2 carretera a Puerto Madero s/n., Tapachula, Chiapas, C.P. 30700, Mexico
Facultad de Ingeniería, Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, C.P. 29050, Mexico
Instituto de Ingeniería, Universidad Nacional Autónoma de México, Circuito Escolar s/n, Ciudad Universitaria, Delegación Coyoacán, México City, C.P. 04510, Mexico
Departamento de Ing. Ambiental de la Facultad de Ingeniería, Universidad Autónoma de Yucatán, Av. Industrias no contaminantes por anillo periférico Nte. s/n, Mérida, Yucatán, C.P. 97310, Mexico
Author to whom correspondence should be addressed.
Sustainability 2019, 11(11), 3193;
Received: 26 April 2019 / Revised: 3 June 2019 / Accepted: 4 June 2019 / Published: 7 June 2019
(This article belongs to the Section Environmental Sustainability and Applications)
This paper presents a technology based on the use of aged refuse that has proven to be highly effective in the treatment of low biodegradability leachates. The tests were developed using two filled bioreactors arranged in series and operated at steady state. The aged refuse used as filling material was extracted from a city located in the southeast of Mexico and characterized by particle size, humidity, volatile solids, and volumetric weight. On the other hand, bacterial characterization made it possible to identify the presence of species related to the degradation and mineralization of organic compounds, as well as to processes of nitrification or reduction of phosphates and Cr (VI). The bioreactor system was operated under four hydraulic loads (10, 20, 35, and 50 L/m3·d). Maximum removal efficiencies of 85, 86.1, 87.9, 98.6, 97.8, and 97.4% were achieved in COD, BOD5, Color, TP, TN, and N-NH3, respectively, complying with Mexican regulations (NOM-001-SEMARNAT-1996). The system also proved to be stable against shock loads, such as organic load fluctuations in the influent or pH variations. The results of this study show that, in countries such as Mexico, aged refuse extracted from landfills represents a promising option as a sustainable alternative for leachate treatment. View Full-Text
Keywords: biodegradability; bioreactors; leachates; aged refuse biodegradability; bioreactors; leachates; aged refuse
Show Figures

Figure 1

MDPI and ACS Style

Nájera-Aguilar, H.A.; Gutiérrez-Hernández, R.F.; Bautista-Ramírez, J.; Martínez-Salinas, R.I.; Escobar-Castillejos, D.; Borraz-Garzón, R.; Rojas-Valencia, M.N.; Giácoman-Vallejos, G. Treatment of Low Biodegradability Leachates in a Serial System of Aged Refuse-Filled Bioreactors. Sustainability 2019, 11, 3193.

AMA Style

Nájera-Aguilar HA, Gutiérrez-Hernández RF, Bautista-Ramírez J, Martínez-Salinas RI, Escobar-Castillejos D, Borraz-Garzón R, Rojas-Valencia MN, Giácoman-Vallejos G. Treatment of Low Biodegradability Leachates in a Serial System of Aged Refuse-Filled Bioreactors. Sustainability. 2019; 11(11):3193.

Chicago/Turabian Style

Nájera-Aguilar, Hugo A., Rubén F. Gutiérrez-Hernández, Jesús Bautista-Ramírez, Rebeca I. Martínez-Salinas, Daisy Escobar-Castillejos, Rocío Borraz-Garzón, María N. Rojas-Valencia, and Germán Giácoman-Vallejos. 2019. "Treatment of Low Biodegradability Leachates in a Serial System of Aged Refuse-Filled Bioreactors" Sustainability 11, no. 11: 3193.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop