First with new environmentally beneficial technologies

Aug 30, 2013
LTU PhD Zoheb Karim.

Lulea University of Technology is the first in Sweden with a new technology that scales up production of nano-cellulose from wood residues. It may eventually give the forest industry profitable new products, such as nano-filter that can clean both gas and processwater, but also drinking water. Better health and a cleaner marine environment, both nationally and internationally, are some possible effects.

"There is a large interest in this by the industry, not least because our bionanofilter is expected to be of great importance for the purification of water, particularly internationally," says Aji Matthew, Assistant Professor at Luleå University of Technology who leads the EU-funded project.

On Tuesday, researchers at Luleå University of Technology demonstrated before representatives from the Industry and from research institutes how they have managed to scale up the process of manufacture of nano-cellulose of two different residues from the . One is from Domsjö in Örnsköldsvik in the form of a fiber product that is grinded down to tiny nano in a special machine. Through this process, the researchers have managed to increase the amount of the previous two kilograms per day to 15 kg per day. Another is that have been successfully scaled up from 50 to 640 grams / day. The process is possible to scale up and therefore highly interesting for the forest industry.

If this is successful we could add value to our waste. As it is, we earn almost no money on it and there is almost no place to store it, we give it away, says Anna Svedberg, product engineer at Domsjö Factories.

Bjorn Alriksson, research and development engineer at SP Processum, an organization that spans the entire forest industry when it comes to finding new products from the forest, he also sees great opportunities in the research.

"It is very relevant in the current situation because the paper industry does not run as good as in the past. There is a declining market, especially for newsprint paper and you need to find new products that you can produce from the forest and then Nanocellulose is a very interesting product," he says.

Nano Filter for purification of process water and is not the only possible product made of nano-cellulose since cellulose has much greater potential.

"Large-scale production of nano- is necessary to meet a growing interest to use bio-based nanoparticles in a variety of products," says Kristiina Oksman professor at Luleå University of Technology.

Nano filters is today developed at Imperial College, London, in close collaboration with the researchers at Luleå University of Technology.

"We have optimized the process to produce nano filters, we can control the pore size and thus the filter porosity. It's actually just a piece of paper and the beauty of this piece of paper is that it is stable in water, not like toilet paper that dissolves easily in water, but stable," says Professor Alexander Bismarck at Imperial College.

Explore further: Nano-scientists develop new kind of portable water purification system

add to favorites email to friend print save as pdf

Related Stories

Chemicals and biofuel from wood biomass

Dec 19, 2011

(PhysOrg.com) -- A method developed at Aalto University in Finland makes it possible to use microbes to produce butanol suitable for biofuel and other industrial chemicals from wood biomass. Butanol is particularly ...

Biodegradable nappies from recycled cardboard

Mar 13, 2013

VTT Technical Research Centre of Finland has developed a process that enables recycled paper and cardboard to be used as a raw material for nonwovens. Hygiene and home care products, such as nappies, sanitary ...

Recommended for you

Thinnest feasible nano-membrane produced

Apr 17, 2014

A new nano-membrane made out of the 'super material' graphene is extremely light and breathable. Not only can this open the door to a new generation of functional waterproof clothing, but also to ultra-rapid filtration. The ...

Wiring up carbon-based electronics

Apr 17, 2014

Carbon-based nanostructures such as nanotubes, graphene sheets, and nanoribbons are unique building blocks showing versatile nanomechanical and nanoelectronic properties. These materials which are ordered ...

Making 'bucky-balls' in spin-out's sights

Apr 16, 2014

(Phys.org) —A new Oxford spin-out firm is targeting the difficult challenge of manufacturing fullerenes, known as 'bucky-balls' because of their spherical shape, a type of carbon nanomaterial which, like ...

User comments : 0

More news stories