Industrial applications from Seaweed achieve cradle to cradle Gold certificate

Transkript

1 Industrial applications from Seaweed achieve cradle to cradle Gold certificate 7th Nordic Seaweed-conference: 11. October 2017, Grenå. v. Bodil Engberg Pallesen, Senior Consultant Teknological Institute, AgroTech

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3 Experience More than 20 years of experience in the sector, worked with development and testing of new products made from plant fibers Development work started at the former Danish Agricultural Advisory Service, National Center, Department of Crop Production now SEGES and continued at AgroTech (from 2007) and now Technological Institute, AgroTech division (from 2016)

4 Case from MUDP projects: Sea-weed eagle grass for insulation and roof ridges

5 Handling seaweed from the coast Ebeltoft 2015

6 Harvest of eelgrass - Zostera marina - at Bogø 2017, Denmark

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13 Development work in cooperation with Advance Nonwoven

14 Advance Nonwoven A/S

15 Game changing technology Patented CAFT-technology, Advance Nonwoven, Denmark

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17 SEAWEED EAGLE GRASS FOR INSULATION AND RIDGES

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19 Advantages of the insulation mats Renewable and sustainable Not flammable - does not fire Thermal conductivity: minimum at the same level as mineral wool Long durability The mats are easily manageable and touch-sensitive No toxic additives needed Has a naturally high salt content, which protects against rotting and microbial degradation Can be composted The product can be recycled perfect bio-circular product Remove nitrogen from the aquatic environment when harvested/removed from the coast

20 Mineral content in the seaweed mats

21 Heavy metals - analysis

22 U-value same as mineral wool Tangisoleringsmåtter har en målt U-værdi 0,425 W/m2 K, ved en densitet ca. 70 kg/ m 3, middel temperatur 10,1 gr C, delta T = 15,0 gr C, og lambdaværdien er beregnet til 0,037 W/mK, hvilket er fuldt på højde med mineraluld.

23 A credited fire test has been carried out by the Danish Institute of Fire Technology, and shows the seaweed mats achieve a fire class E, without the addition of fire retardance. EN13823 standard Billede 1: knap 2 min. Billede 2: 7,39 min. Billede 3: 8,45 min

24 Sound insulation

25 Tangisoleringsmåtten er et porøst materiale og opfører det sig som mineraluld, og ved højeste frekvenser er det den 80 mm tangmåtte, som klarer sig lidt bedre end 80 mm mineraluldsmåtten. Tangmåtten med den kompakte overside yderst absorberer bedre end den bløde ved de lavere lydfrekvenser, og følger mineraluldsmåtten tæt. Ved frekvenser over 500 Hz falder den lidt, og her klarer tangmåtten med den bløde side sig bedre.

26 Analysis of Emissions

27 Success criteria for seaweed insulation mats/bats: Can achieve fire class minimum E-class Has insulating properties in height with mineral wool (heat and sound insulation) - measured at TI: λ = W / mk Do not rotten Allows the building to breathe Is easy to handle and for the construction worker and adapt to the constructions Provides a better working environment and indoor climate (no mineral wool dust) Has increased sustainability relatively to mineral wool Certified with "cradle to cradle" analysis achieving GOLD-level. Provides an environmental enhancing effect, which is achieved by using seaweed/eelgrass as a resource and not considered waste where eel grazing poses a problem along our beaches The price!

28 Insulation with seaweed bats at Ecohuset at Architect Carlo Volf, Lyngsbæk

29 Cradle to cradle certification of seaweed bats at Gold-level

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31 Thatchers at the workshop with Tang-Tørv for ridges, October 2015

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34 A SEAWEED MAT, WHICH HAS BEEN ON THE GROUND FOR MORE THAN 10 YEARS, AND WITHOUT GOING INTO DECAY

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39 Success criteria for ridges from seaweed: Tang-Tørv or Seaweed rolls Increased durability compared to traditional ridges from straw or heather Easy to handle at the thatched roof Less moss due to a less sour environment Delivered as bats or rolls A renewable resource, compostable Accepted by the thatched industry

40 Thanks to MUDP Danish Environmental Protection Agency (Danish EPA) (Miljøstyrelsen)

41 Contact info: Bodil Engberg Pallesen, Senior Consultant, specialist Environmental technology Technological Institute, AgroTech Agro Food Park 15, Skejby, 8200 Århus N Mobil bdp@teknologisk.dk