Evaluation of the reduction of stabilization times of closed sites for the final disposal of urban solid waste, through the recirculation of inoculated leachates

Advances in Recycling & Waste Management

ISSN: 2475-7675

Open Access

Evaluation of the reduction of stabilization times of closed sites for the final disposal of urban solid waste, through the recirculation of inoculated leachates

11th World Congress and Expo on Recycling

June 13-14, 2019 | Edinburgh, Scotland

Dayanira Jovita Gutierrez Hernandez and Maria Neftali Rojas Valencia

University City, Coyoacan, Mexico

Posters & Accepted Abstracts: Adv Recycling Waste Manag

Abstract :

The garbage is disposed in a dump in the open air, is the most common way to eliminate municipal solid waste in Mexico, such is the case of the former ex drump called “Bordo Xochiaca” which has received more than 1,200 ton of municipal solid waste from Mexico city, who has operated since 1975, but in 2006 was definitely closed and sanitized, today this site is a mall and sport center. With 13 years elapsed with its closure and following the protocols of Mexican standar continue to generate a significant amount of leachate. A focus on the treatment of leachates is to make use of the municipal solid waste that was extracted from the final disposal sites with more than eight years buried, this waste is called “stabilized material” and is used as packaging material in bioreactors that present important efficiencies in COD and BOD removal. This is why the present work proposes to make use of the recirculation of a leachate from the closed disposal site and inoculate it with rumen of cow origin, in a bioreactor packed with stabilized material from the same site, which will operate in anaerobic conditions, which will allow decrease stabilization times in a final disposal site to accelerate the release of biogas due to the proximity to crowded places. The high efficiencies in bioreactors are attributed to the existence of microbial communities in the stabilized material that have been acclimated to high concentrations of contaminants, developing a capacity to degrade organic matter. This treatment will allow leachates to be used for internal uses in the final disposal sites, converting it from a contaminating liquid to a potential resource, in addition to avoiding such liquids may infiltrate in the basement or in the bodies of surface water drainage.

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Biography :

Dayanira Jovita Gutiérrez Hernández (Mexico City, 1984). Graduated from IPN (National Polytechnic Institute) like Industrial Chemical Engineer, currently she studies a Master´s Degree in Ambiental Engineer. She has ten years of experience work in Acciona Water and Services and Degremont..

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