tratamento e destinação final de resíduos
WASTE TREATMENT AND FINAL DESTINATION
Co-processing uses industrial waste as replacement of the fuel used to supply the oven used in the cement production process to transform clay and chalk in clinker.
Furnaces are capable of receiving large quantities of waste and the quality of the final product is not changed.
Incineration is a technique that aims to reduce the volume of waste by up to 90%, in an agile way. Besides eliminating all substances that are considered as risky, such as toxic waste, it eliminates, considerably, the risk of contamination through combustion. During this process temperatures can reach up to 900°C.Industrial Landfills
Industrial landfills are used to store solid waste produced by industries in the most varied segments. We perform the treatment of liquid effluents, such as leachate, and of the fumes released by discarded material. Additionally, we also provide drainage services of pluvial waters, pre-recycling in special sheds, storage and maintenance. Landfills are classified in classes I, IIA or IIB, according to the hazardous nature of the waste to be disposed of, determined and classified by analysis NBR 10.004.
Landfills cannot be installed in flooded areas, aquifer recharge sites, in areas of protection of springs, mangroves, protected species habitats, ecosystems in fragile areas or in those defined as permanent environmental preservation.
The structure of industrial landfills is composed of a double waterproofing system. The bottom one is made of a synthetic blanket overlayed with a layer of clay and must have:
- Chemical resistance to the residues to be disposed and the weather to withstand the wetting cycles;
- Tensile strength, flexibility and elongation, sufficient to withstand installation and operating efforts;
- Resistance to laceration, abrasion and puncture of any sharp or cutting material that may be present in the waste;
- Ease of carrying out splices and repairs in the field, under any circumstances.
Recycling is a way to reintroduce waste into the production chain that would be disposed of mainly in landfills.
Advantages of Recycling:
- Decrease in water, soil and air pollution;
- Reduction of aggressive waste accumulation;
- Reuse of materials;
- Improvement in the population's quality of life;
- Job creation;
- Formation and development of ecological awareness;
- Enhancing public cleanliness in cities;
- Social and environmental responsibility;
- Rational use of natural resources.
Did you know?
- 50 kg of recycled paper prevents a tree from being cut;
- For each ton of reused paper, about 20 trees are saved;
- The same paper can be recycled 7 to 10 times;
- Plastic bags, supplied in supermarkets, take 450 years to decompose in the soil;
- An aluminum can takes 80 to 100 years to decompose;
- Glass can take a million years to decompose.
Hospital autoclave: Originally used for surgical material sterilization, this process was adapted and developed for waste sterilization. It consists of a system that conducts waste to a leak-proof chamber, where we can create vacuum and inject water steam (between 105 and 150°C) under certain pressure conditions. After some time inside the chamber, waste becomes sterile.
Benefits - Relatively low operating cost;
- Does not emit gaseous effluents and the liquid effluent is sterile;
- Relatively easy and inexpensive maintenance.