Reduce The Impacts of Landfills
Despite this problematica, feasible measures exist to reduce the impact of landfills:
1. Trash compaction can reduce energy costs and economic transportation and disposal. With today’s technology can reduce waste volume by 60%.
2. Pneumatic conveying systems are available that can reduce density in areas of high costs.
3. The problem of leachate can be reduced with proper planning of the location of the landfill away from aquifers and surface water bodies. Parallel systems are essential to capture leachate drainage and undergo treatment. This can be:
* For spraying. We proceed to the spraying of leachate on:
- Surface discharge and closed so that air out, evaporate or be absorbed.
- The landfill itself adequately equipped in areas of adequate vegetative cover. This will aerate the leachate and the surface acts as a biological filter that helps her disappearance.
* Physicochemical treatments:
- Absorption.
- Oxidación.Precipitación.
- Coagulation-flocculation.
* Percolation on product slag from the incineration of municipal waste.
* Transfer to systems of urban waste water purification:
- Conventional treatment plants.
- Anaerobic Lagoons.
- Activated sludge systems.
- Systems bacteria beds.
4. The biogas can be captured and used as an energy source, thus providing additional income and avoiding unwanted emissions.
5. We must make the proper sealing to prevent leaking underground landfill.
6. With the necessary corrective measures can be recovered environmentally space formerly occupied by a landfill. An example is the draft Valdemingómez verterdero recovery, which for more than twenty years served to collect the garbage produced by three million people of Madrid and is currently in a recovery phase to become a forest park.
Finally it is noted that the landfill is considered as the last and least desirable option of all.
It has completely eliminated any uncontrolled release or discharge into the sea. This has become too often the recipient of waste water, industrial waste, toxic and radioactive waste. Focusing on the subject of our study many coastal cities in the world in the past chose to dump its waste into the sea. Fortunately, these practices are gradually falling into disuse despite some attempts to camouflage behind the building to house garbage island buildings, infrastructure, etc.. in some countries of the world especially in the East.
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