Characteristics and management options for mixed construction waste residue
Hoffmann, Clemens (2015)
Tampereen ammattikorkeakoulu
2015
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201505209094
https://urn.fi/URN:NBN:fi:amk-201505209094
Tiivistelmä
The world of today is not possible to imagine without recycling. The reuse of waste saves resources and environment. The trend is to follow a waste hierarchy saying: avoid, reduce, reuse, recycle, treat and dispose waste.
This thesis is seeking for alternatives for mixed waste residue from construction site and demountable waste remains after a recycling treatment. This particular waste is currently used to cover landfill. The aim is to find possibilities for reuse contents or the whole waste mixture. By the help of analyzing the physical characteristics of the waste mix-ture: dry residue, sieving, loss on ignition and gross calorific value the waste is assessed and alternative treatment methods for the current one suggested.
The sieving resulted in, that every size portion has nearly the same amounts of content. The waste consists of 29 % organic material and the gross calorific value is about 6 MJ/kg. The amount of organic waste can be utilized in an incinerating power plant where it is basically burned to produce energy. To increase the value of the gross calo-rific value the application of a double lane wind shifter is advisable. This machine sepa-rates the organic and inorganic materials of the waste by the help of different densities and flow resistances of the particles. The inorganic material can be applied for example in road works or cement works. That is the reason why an implementation of a double lane wind shifter is suggested as a pre-treatment method.
This thesis is seeking for alternatives for mixed waste residue from construction site and demountable waste remains after a recycling treatment. This particular waste is currently used to cover landfill. The aim is to find possibilities for reuse contents or the whole waste mixture. By the help of analyzing the physical characteristics of the waste mix-ture: dry residue, sieving, loss on ignition and gross calorific value the waste is assessed and alternative treatment methods for the current one suggested.
The sieving resulted in, that every size portion has nearly the same amounts of content. The waste consists of 29 % organic material and the gross calorific value is about 6 MJ/kg. The amount of organic waste can be utilized in an incinerating power plant where it is basically burned to produce energy. To increase the value of the gross calo-rific value the application of a double lane wind shifter is advisable. This machine sepa-rates the organic and inorganic materials of the waste by the help of different densities and flow resistances of the particles. The inorganic material can be applied for example in road works or cement works. That is the reason why an implementation of a double lane wind shifter is suggested as a pre-treatment method.