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The experts were also analyzed by electrical surveying the current status of new glass to make a comparison between the initial and final state, once it is full.
Councillor for the Environment of the City of Lorca, Melchor Morales, and technicians who have completed the Environmental Assessment Study of the State of Underground Leak Detection and Storage Vessels of the Center for Urban Solid Waste Management of the conclusions presented Lorca of this work, which states that the basement of the closed landfill is not contaminated.
The Professor of Soil Science and Agricultural Chemistry at the Technical University of Cartagena, Angel Face, explained that "in this study we used a nondestructive method to map the subsurface, a technique not used anywhere else in Spain landfill, but has proven to be effective. "
"Additionally, we combined the results with electrical topography chemical analysis and the results show that pollution is having leaks surrounding ground. We have also made a comparison between baseline and the end of the new vessel, a Once you fill out, "added the professor.
The study was conducted by the Research Group, Management, Use and Recovery of Soil and Water (GARS), whose director is Dr. Angel Faz Cano de la Universidad Politécnica de Cartagena in cooperation with the Department of Water, Environment and Livestock Lorca City Council, has undertaken an innovative project in the Non-hazardous Waste Landfill (MSW mostly) on the Waste Management Centre of Lorca, in the district of Barranco Hondo.
This study is part of the PhD Thesis of Maria Rosa Rosales.
The aim of the project has been implementing new and complex methodology to study and detect any possible contamination plumes of leachate leaking storage vessels and diagnose RSU initial state of the subsoil in that area, specifically in areas that may have a greater condition because this type of waste management as usual and common in recent decades.
The methodology developed by GARSA for use in landfills, as well as in service stations, with different nuances, is based on a combination of geophysical and geochemical Electrical Tomography by conducting physicochemical analytical samples for the determination of salts and ions from the leachate, which could have a negative impact should they reach the water table and groundwater bodies.
This is why it is important to appropriate scientific knowledge to serve the people from the standpoint of managing their own waste generated humans in their daily activities.
The combination of techniques used can give an initial diagnosis of the state of groundwater in the landfill and monitoring over time.
During Phase 1 of the study, the technique has been applied nondestructive Electric Tomography in the two storage reservoirs MSW Landfill Lorca in two seasons rainy and dry season to study the influence of seasonality on soil characteristics.
After interpretation of geophysical results obtained, we selected those areas where anomalies are detected.
In Stage 2 of the study, chemical analysis techniques applied to soil and water such as spectrophotometry and ion chromatography to compare the data obtained by performing electrical tomography profiles.
Emphasize the advantages that the use of this methodology involves, such as their application with hints at gas stations and service stations, low cost associated with the application of geophysical technology, speed of data acquisition in field and the results obtained applied in specific areas of research and reaching depths of up to 35 meters below the surface level without altering the location of study or stop the activity at the place where it applies.
The geophysical survey carried out in the Landfill Lorca allowed a correct diagnosis prior to the study area with a high degree of reliability, allowing for seasonal monitoring the benefits and assuming that this implies a saving in taking samples and analytical performed.
Source: Ayuntamiento de Lorca
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