Expedition in 1920 is not a dump, but rather a waste treatment plant solids Today we know the hand of a Chemical Engineering graduate student, Ivan Escobar, what it is and what makes the plant solid waste MISSIONS AESA SA, better known as Fachinal . To banish the famous myth that alludes to that it is a dangerous pollutant source in the province of Misiones.
a few meters from National Highway 105 that connects the city of Posadas Apostles, 30 km from this city, we find the final destination of our waste. The company AESA SA MISSIONS www.aesamisiones.com.ar responsible for the fate of our waste, as well as medical waste and hazardous waste near future, such as batteries, etc. 
Aerial view of EFSA
MISSIONS SA is the modern system of waste deposition, ie " landfill." all know that garbage is not transformed or recycled must be stored somewhere, well, this storage place until a few years in our province, was known as the "garbage" ... Well known to us, we know all that entails (pollution, disease, proliferation of vectors, etc.).
However, this is a modern system of waste storage is based on membranes that provide a physical barrier to prevent contact with the surrounding natural resources.
Model of landfill
First, all the garbage that is coming is widespread in the dumping area, where Caterpillar tractors are responsible for crush and demolish all the garbage which will then be treated.
The modules consist of four compartments to be working until co mpletan, reaching a certain height the form closes, another membrane with high density and a thick layer of earth to recover organic landscape.
A module A collection system for fluids and gases from the decomposition of waste. The gases are composed mainly of methane, which in this treatment plant is burned.
The fluids are collected by hand piping systems and taken to a pool of activated sludge treatment, physical treatment, chemical and biological.
Pool effluent treatment insert a module
activated sludge system to treat leachate
Then this, the fluids pass through a wetland, a sort of artificial pond where cattails were planted. These plants absorb heavy metals that may contain liquids, and then when they turn their life cycle, are thrown dried filling. Once the liquid meets all this treatment is eventually discharged into a stream in the area, always controlling quality and composition, not to exceed the permitted values.
cattails in wetlands can therefore say that Fachinal not a "dump more", but a plant solid waste treatment that eliminates open dumps or any other deposit of waste, focussing on all Stuffed Health, where their provision is subject to stringent pollution controls that make it a safe and free of harmful effects to the environment, unlike the known landfills.
Some interesting facts:
Misiones province has two landfills, one for the south located in Fachinal Caraguatay and the other to the north. Localities are 53 assisted 750,000 people attended 25 transfer stations, 12 trucks with trailers for shipment of household waste, heat 3 trucks for the transportation of pathological waste. About 8000 tonnes of waste per month entering the landfill Fachinal of which 45 tons are pathological waste.
Text: Ivan Escobar, 5 th year student of UNAM Ing.Química.
Photos: Lucas Dos Santos, grade 5 student of Chemical Engineering UNAM.
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