Anoxia - applying the technique

420 views

Published on

Anoxia: High expansion foam
The Anoxia method is unique for creating an environment without oxygen under atmospheric circumstances. High expansion foam is produced by mixing nitrogen and a mixture of water and specially developed high expansion detergent, with an expansion rate upto 1:1000, meaning that 1 litre of water/foam agent mix expands up to 1 m3 foam. Due to the specially designed foam generator, the high expansion foam bubbles are filled with a > 99% concentration of nitrogen. The oxygen level surrounding the animal drops from 21% in atmospheric air to < 1 % once the animal is submerged in the foam.

Anoxia: convulsions, but no stress or pain
The animals need a constant supply of oxygen to the brain. Applying Anoxia foam, the oxygen is replaced by nitrogen. As a result the nitrogen level is raised to > 99% and the oxygen level is lowered to < 1%. Considering the natural reaction to sudden lack of oxygen the animal is rendering quickly into unconsciousness. As a consequence, behavioral indicators like loss of posture and convulsions will appear. With this in mind, unconscious animals are insensitive to perceive unpleasant sensations like pain.

Anoxia: How Anoxia foam is created
A mixture of 97% water and 3% high expansion foam agent is sprayed into the Anoxia foam generator, creating a thin film on the outlet of the generator. At the same time, nitrogen is added with overpressure into the foam generator. The nitrogen expands when it exits the generator, creating robust high expansion foam. The high expansion foam bubbles are filled with > 99% nitrogen.

Anoxia: Single foam generator systems
In practice, one Anoxia foam generator creates a volume of up to 750 liter of high expansion foam per minute. This volume is more than sufficient to fill a wheelie-bin container within 30 seconds. The most common container volumes are: M size - 240 liter; L size - 340 liter; and XL size - 370 liter. The choice of the volume of the container depends of the size of the animal and/or the number of animals that need to be stunned/killed. A lid with a chiffon that seals the container. As soon as the foam exits the chiffon, the gas supply is stopped and the chiffon is closed. The nitrogen gas concentration in the container remains at 99%.

Published in: Government & Nonprofit
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
420
On SlideShare
0
From Embeds
0
Number of Embeds
349
Actions
Shares
0
Downloads
2
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • This presentation demonstrates the new capabilities of PowerPoint and it is best viewed in Slide Show. These slides are designed to give you great ideas for the presentations you’ll create in PowerPoint 2011!

    For more sample templates, click the File menu, and then click New From Template. Under Templates, click Presentations.
  • Anoxia - applying the technique

    1. 1. www.anoxia.eu Presentation 3 The Anoxia technique: Small-scale Anoxia applications For more information: www.anoxia.eu
    2. 2. Anoxia Applying the technique Presented by the N2GF team For more information: www.anoxia.eu
    3. 3. Anoxia: High expansion foam – The Anoxia method is unique for creating an environment without oxygen under atmospheric circumstances – High expansion foam is produced by mixing nitrogen and a mixture of water and specially developed high expansion detergent, with an expansion rate upto 1:1000, meaning that 1 litre of water/foam agent mix expands up to 1 m3 foam. – Due to the specially designed foam generator, the high expansion foam bubbles are filled with a > 99% concentration of nitrogen – The oxygen level surrounding the animal drops from 21% in atmospheric air to < 1 % once the animal is submerged in the foam 3 For more information: www.anoxia.eu
    4. 4. • Atmospheric air contains 21% oxygen, 78% nitrogen and 1% other gasses, mainly carbon dioxide; the animal needs a constant supply of oxygen to the brain • Applying Anoxia foam, the oxygen is replaced by nitrogen, raising the nitrogen level to > 99% and lowering the oxygen level to < 1% • The natural reaction to sudden lack of oxygen is rendering quickly into unconsciousness, causing behavioural indicators like loss of posture and convulsions • Unconscious animals are insensitive to perceive unpleasant sensations like pain Anoxia: convulsions, but no stress or pain For more information: www.anoxia.eu
    5. 5. Anoxia: How Anoxia foam is created • A mixture of 97% water and 3% high expansion foam agent is sprayed into the Anoxia foam generator, creating a thin film on the outlet of the generator • At the same time, nitrogen is added with overpressure into the foam generator • The nitrogen expands when it exits the generator, creating robust high expansion foam • The high expansion foam bubbles are filled with > 99% nitrogen For more information: www.anoxia.eu
    6. 6. Anoxia: Single foam generator systems • In practice, one Anoxia foam generator creates a volume of up to 750 liter of high expansion foam per minute • This volume is more than sufficient to fill a wheelie-bin container within 30 seconds • The most common container volumes are: M size - 240 liter; L size - 340 liter; and XL size - 370 liter • The choice of the volume of the container depends of the size of the animal and/or the number of animals that need to be stunned/killed • A lid with a chiffon that seals the container • As soon as the foam exits the chiffon, the gas supply is stopped and the chiffon is closed. The nitrogen gas concentration in the container remains at 99% For more information: www.anoxia.eu
    7. 7. 7 For more information: www.anoxia.eu Anoxia: Capacity of the M size container system Farm type • Small-size Pig production farm • Small-size free-range poultry/ duck/ geese farm Consumption • Gas consumption per filling; 240 liter / 19 sec • Detergent consumption per filling: 0,01 liter Capacity • 5 piglets per filling 0 – 2 days old, average weight 1,35 kg • 2 birds per filling average weight 2,5 kg • 1 bird per filling average weight 6 kg
    8. 8. 8 For more information: www.anoxia.eu Anoxia: Operational costs of the M size system Investment M-size system ex costs: € 3,500 ex VAT Running costs: Pig growing farm • 1 x per week – 5 piglets per filling; € 0,59 per piglet • 5 x per week – 5 piglets per filling; € 0,34 per piglet Free-range poultry farm, using bottled gas • 1 x per week; € 2,94 per week • 5 x per week; € 8,47 per week
    9. 9. 9 For more information: www.anoxia.eu Anoxia: Capacity of the L size system Farm type • Medium-size Pig production farm • Medium-size poultry/ duck/ gees farm Consumption • Gas consumption per filling; 340 liter / 27 sec • Detergent consumption per filling: 0,02 liter Capacity • 10 piglets per filling 0 –2 days old, average weight 1,35 kg) • 3 birds per filling average weight 2,5 kg • 1 bird per filling average weight 6 kg – 10 kg
    10. 10. 10 For more information: www.anoxia.eu Anoxia: Operational costs of the L size container system Investment foam generator ex costs: € 3,900 ex VAT Running costs: Pig growing farm • 1 x per week – 10 piglets per filling; € 0,30 per piglet • 5 x per week – 10 piglets per filling; € 0,24 per piglet Free-range poultry farm, using bottled gas • 1 x per week; € 3,00 per week • 5 x per week; € 11,95 per week
    11. 11. 11 For more information: www.anoxia.eu Anoxia: Capacity of the XL size container system Farm type • Large-size Pig production farm • Large-size poultry/ duck/ gees farm Consumption • Gas consumption per filling; 380 liter / 30 sec • Detergent consumption per filling: 0,02 liter Capacity • 15 piglets per filling 0 – 2 days old, average weight 1,35 kg • 4 birds per filling average weight 2,5 kg • 2 bird per filling average weight 6 kg • 1 bird per filling average weight 10 kg
    12. 12. 12 For more information: www.anoxia.eu Anoxia: Operational costs of the XL size system Investment foam generator ex costs: € 4,200 ex VAT Running costs: Pig growing farm • 1 x per week –15 piglets per filling; € 0,27 per piglet • 5 x per week – 15 piglets per filling; € 0,17 per piglet Free-range poultry farm, using bottled gas • 1 x per week; € 4,06 per week • 5 x per week; € 13,00 per week
    13. 13. The Anoxia technique: A good way to demonstrate your corporate responsibility For more information: www.anoxia.eu

    ×