From creation to implementation of alternative solutions for the treatment, disposal and neutralization of construction waste
The problem of recycling construction waste
The problem of construction waste in the Russian Federation is becoming particularly relevant due to the fact that the service life of the so-called "Khrushchev" buildings, which were massively built in the 50s and 60s of the last century, is running out. The experience of Russia and other republics of the former Soviet Union indicates the inexpediency of reconstructing such houses. That is, all of them are subject to dismantling in the near future and, accordingly, the problem of construction waste of such a process arises.
Some difficulties of oil sludge disposal:
- Diverse and complex morphological composition. Some fractions are almost impossible to burn or recycle easily.
- A large list of waste has a liquid aggregate state.
- The vast majority of construction waste is bulky.
- The process of recycling construction waste is quite expensive, so unauthorized landfills and "gray schemes" arise.
Engineering tasks
Construction waste is not only concrete, soil, metal, which can be sorted and recycled, but also a large list requiring a technological disposal solution, namely the possibility of reducing the volume of illiquid waste:
- waste linoleum and thermal insulation;
- waste from dismantling household appliances;
- multicomponent waste from worn-out furniture;
- plastics;
- RTI;
- waste from contaminated metal and polymer containers.
- Calculations and laboratory measurements of emissions from the incineration of construction waste have been carried out in order to study the volume and quality of flue gases for the selection of an effective system of gas cleaning equipment.
- As an example, a method for the thermal disposal of waste thermal insulation materials contaminated with carbamide-formaldehyde solidified resins has been studied.
- A study of the mass and composition of the resulting ash residue was carried out to form proposals for its further use as BMP.
Product results
The Eco-Spectrum team has developed technologies for the thermal disposal of "problematic" groups of construction waste, taking into account their component composition and hazard class, as well as the volume of exhaust flue gases into their afterburning chamber.
- Practical tests have been carried out and effective, and most importantly, universal methods of cleaning flue gases up to technological concentrations of pollutants specified in ITS BAT/Rosprirodnadzor order have been selected.
- An innovative approach to the selection of GO and reagents has been developed, capable of ensuring the quality of emissions within the limits of technological indicators.
- Several options have been developed for the preparation and supply of waste, including liquid waste.
- During the tests, energy consumption, fuel consumption, electricity, reagents, etc. readings were taken. Operating modes were determined, the combustion rate was determined, the ash content, ash quality and hazard class were determined, and the cost of thermal neutralization of construction waste was calculated.
The complex for the disposal of construction waste has been successfully implemented
The result of research and testing is a successfully completed R&D project on the development of an automated complex for the disposal of construction waste. Upon completion of production, all equipment passed factory tests, machinery and technology passed industrial and environmental control, and relevant certificates and conclusions were obtained. To extract secondary material resources, Eco-Spectrum has included in the complex a unit for sorting and processing construction waste of its own design and production (conveyors, drum separator, shredder, etc.), and in the recycling unit a unit for the preparation of non-recyclable waste and tailings sorting and processing, including liquid waste and a thermal decontamination line with a gas purification and heat recovery system.
The elimination of such sorting waste helps to reduce the negative impact on the environment from the placement of toxic waste in landfills near human activity.
Kremlev Denis Sergeevich
SALES DEPARTMENT ENGINEER
d.kremlev@ecospectrum.ru
8-800-555-59-12 (ext. number 121)
Other projects
Disposal of tar
Disposal of filtrate
Disposal of liquid waste from silicon wafer cutting
Disposal of sludge from biological treatment plants
Disposal of construction waste
Waste disposal of thermal power plants, thermal power plants, BOILER houses
Medical waste disposal
Disposal of coke chemical waste
