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The ravine, technically a “separating air wall”, was to be created by the decision of the state enterprise Diamo and the authorities to protect the adjacent landfill, which contains three thousand cubic meters of dangerous flammable and toxic waste based on tars, oils, polycyclic aromatic hydrocarbons, phenols and other substances that, with entails the production of coke.
“It represents the most critical zone in the dump area and, in the event of any thermal exposure to the contents of the landfill, the source of an extremely emergency situation,” wrote Zdeněk Čížek, a forensic expert in the field of environment and chemistry, who was commissioned by Diamo to assess what kind of material the company actually Over the years, Ridera Bohemia drove into the ravine (he discovered that construction waste, often flammable – for example, plastics, wood or the remains of cables).
How big of an ecological disaster would it be if a fire (the industry uses the term “thermals”) from inside the dump burned through to the landfill with this chemical cocktail? “The situation would probably not be too favorable if the thermals reached there,” says Rostislav Dudáš, director of the Ostrava Diama plant, cautiously.
What would that mean? Would people in the vicinity be at risk? “I don’t want to shoot from the side so we don’t cause panic. But it would be a problem,” he admits after another question, and shows on the computer monitor in his office how Diamo is using probes to monitor the development of temperatures at the chemical sludge dump online. “The temperature is stable at 40 degrees, it doesn’t even go down,” reassures Dudáš.
According to last year’s inspection by the Ministry of Trade and Industry, the Ridera Bohemia company violated the protective zone of the chemical landfill when loading material into the separation gorge. Even from the statements of the inspectors, it is evident how serious a threat they consider the landfill to be. “Violation of the protective zone of a closed chemical waste landfill can have unforeseeable consequences if it is proven that there is a threat to the tightness of the landfill, its stability or fire safety,” the review concludes.