Bio inspired technology to clean a clean room on the level of minimum 10 Nanometre in a HEPA filter cleanroom

Transcription

1 Bio inspired technology to clean a clean room on the level of minimum 10 Nanometre in a HEPA filter cleanroom Bio inspired technology As seen as a natural. phenomenon Clean a clean room on. the level of minimum. 10 Nanometre Bob Ursem VCCN CLEANROOM SYMPOSIUM 2015 MAY 20, 2015 VCCN CLEANROOM SYMPOSIUM 2015 Seabucktorn (Hippophae rhamnoides L.) Electrostatic Force Gravitation Force Lineair Elliptic Circulair

2 Electrosphere

3 Botanische Tuin TU Delft, Afdeling Biotechnologie, Faculteit Technische Natuurwetenschappen Botanische Tuin TU Delft, Afdeling Biotechnologie, Faculteit Technische Natuurwetenschappen Pollendrift and electrical charging of particules. V static 5000 Volt/m Electrostatic Force The electric flield shapes plants in high altutudes, while teir naturakl growth is genetically very different. Botanische Tuin TU Delft, Afdeling Biotechnologie, Faculteit Technische Natuurwetenschappen Gravitation Force

4 Fine dust can be irritating, especially on the nasopharynx, bronchia and bronchioles due to spores, pollen and bio particles dispersion. This phenomenon of electrical wind was first noted by Hauksbee in Publication: Physico Mechanical Experiments Leaves of peppels in Delft show burned petioles and dehydrated leaf tips (research 2005). Inner bark sugar converted into caramel.

5 Preliminary Capture technology Discharge electrode Ionized air Molecules Collector electrode - Dust particles Positive ion wind Botanic Garden Delft University of of Technology, Department of of Biotechnology, Faculty of of Applied Sciences

6 Gas exhaust is for 50% positively charged and 50% negative charged. Mariq, 2010 (Ford fabrics) Plants can provide a fibre filter or a leaf surface filter and reduces fine dust by a maximum of 7 % of the positive particulate matter! Example: Hedera helix Provied a max. reduction of 3-5% of the positive particles. Hedera helix microfoto van vaste deeltjes na een beregening periode van 1 uur Fly ash Lead particle Lead particle Conifers, such as Scotch Pine (Pinus sylvestris) reduces max. 5 7 %. The reduction of fine dust has been studied in the Thomassentunnel from June till September The involved energy demand for this total Fine Dust Reduction System was 0,5 kwh with a result of 15% PM10 on running traffic on the freeway N15. The FDRS system consists of 24 active frames and 24 passive collecting frames. The test show that it can be easily scaled to 60 percent on running traffic. FINEDUSTREDUCTION.COM Department of Biotechnology, Faculty of Applied Sciences

7 Tests in a poultry farm in 2009 The FDRS system consists as prototype a 10 X 1 meter gauze and a high voltage (10 kvolts), nearly static charged wire of 8 meters. The CPC measured reduction overall was first 50 percent. Improvements on the system show now a minimum reduction of 95% of the fine fine dust. APPLICATION IN CLEAN ROOMS (ULTRA FINE DUST REDUCTION OF 10 NANOMETERS OR MORE) Canisius Medical Centre in Nijmegen Nanometre is minimum size distribution that still can be charged.

8 Brownian trajectory of an ellipsoid. (Arjun G. Yodh (University of Pennsylvania) Virus distrubutions Bacteria and other life form distributions. Class 0,1 μm 0,2 μm 0,3 μm 0,5 μm 1 μm 5 μm ISO to FED STD 209E ISO ISO ISO ISO ISO ISO ISO ISO ISO Cleanroom standard (particles/m 3 ) Class1: 3000 Cl2: Class3: Class2: 3000 Cl3: Cl4: μm Cl2: 30 Cl3: 4000 Cl4:

9 IN CONCLUSION The high amount of particulate matter in the range of 523 Nanometres or less, exactly fitting the range of sizes of viruses, bacteria and other Microorganisms Another interesting note can be made on the increase amount of particles per cubic centimetre of air below the particle size of 0.3 μm. These particles could be associated with Gram positive cocci or of an origin from the outer environment like Gram positive rods or common known and widely spread bacteria like Micrococcus, Staphylococcus, Corynebacterium and Bacillus and fungal microspores of Aspergillus and Pencillin. It s known in hospitals that patients do face hospital diseases, but most of them travel through the air and behave like airborne particles. The reduction in the range of 10 Nanometres up to 523 Nanometres is particles per cubic centimetre of air to one particle, so 1 : reduction or 99,9945% on top of a particle concentration in airflow from a HEPA filter! In class 1 there are 3000 particles/1 m 3, here 0 1/cm 3 or 0 theoretical maximum << 1000 particles per 1 m 3 with the use of FDRS on top of a HEPA filter.