Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Fine particle emissions from waste incineration can be purified

23.02.2006


"Efficient flue gas purification equipment at large waste incineration plants can reduce flue gas emissions, and cut the amounts of fine particles and heavy metals containing harmful compounds, to the levels required by the Waste Incineration Directive," explains senior research scientist Carl Wilen of the Technical Research Centre of Finland. Fine particle emissions from waste incineration and their purification have been studied as part of the Tekes FINE Particles technology programme.



Increasing waste recovery rates also places demands on the use of waste as a source of energy. The new EU Waste Incineration Directive which comes into force at the beginning of 2006 carefully defines what waste incineration plants are allowed to release into the air.

"We are studying the formation of fine particles in waste incineration and the role played by the quality of waste in the reduction of fine particle emissions. Fine particle emissions from waste incineration are a more serious problem than other emissions because they can be inhaled deep into the lungs and they contain heavy metals, for example," explains Carl Wilen.


Wilen has been in charge of a project in the FINE Particles technology programme in which fine particle emissions in waste incineration, purification techniques and the impact of the waste quality have been studied.

In addition to the Technical Research Centre of Finland, Åbo Akademi, the University of Oulu, the Finnish Meteorological Institute, and ten companies ranging from manufacturers of recovered fuel and incineration boilers to suppliers of flue gas filters are involved in the project.

In the project, fine particle emissions have been studied at five plants; at a pilot plant, two full-scale waste incineration plants and two parallel waste incineration plants.

Strict EU limits for waste incineration emissions

Tests were carried out at the pilot plant to study how sorting and pre-treating waste influences the formation of fine particles. More studies will be carried out on whether sorting of waste has any effect on reducing particle emissions so that less money would have to be spent on the purification process. Under the EU Waste Incineration Directive which comes into force at the beginning of 2006 strict emission requirements must be met before any waste is incinerated.

"In incineration of sorted waste the level of fine particle emissions before flue gas purification is smaller than in what is called mass incineration of mixed waste. Is the sorting of waste therefore necessary if the flue gas purification technology is so effective? The EU directive sets very strict limits for emissions and these limits are far stricter than those applying to emissions from coal-fired or biomass plants."

Eeva Ahola | alfa
Further information:
http://www.tekes.fi/english/programmes/fine

More articles from Ecology, The Environment and Conservation:

nachricht How does the loss of species alter ecosystems?
18.05.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Excess diesel emissions bring global health & environmental impacts
16.05.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

Im Focus: Bacteria harness the lotus effect to protect themselves

Biofilms: Researchers find the causes of water-repelling properties

Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

Innovation 4.0: Shaping a humane fourth industrial revolution

17.05.2017 | Event News

 
Latest News

Scientists propose synestia, a new type of planetary object

23.05.2017 | Physics and Astronomy

Zap! Graphene is bad news for bacteria

23.05.2017 | Life Sciences

Medical gamma-ray camera is now palm-sized

23.05.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>