1. Aquacontrol - New automatic multiparameter device for environmental task with special aspects to antifouling and data availability Tobias Boehme -4H- JENA engineering GmbH

2. Company profile Company profile Fouling/Antifouling Fouling/Antifouling Aquacontrol Aquacontrol Summary Summary Contents

3. Company profile Windtunnel techniques Optical inspection techniques Optical devices Marine measuring techniques

4. Windtunnel techniques Windtunnel Renault Oxford England -Sauber-Petronas Schweiz -Behr Stuttgart -Uni Lüttich -Uni Kassel -Toyota Köln -Ariolos München -BMW München

5. Optical inspection techniques Three coordinates measuring device

6. Optical devices Albert Einstein Refractor Bamberg Refractor Berlin

7. Marine measuring techniques

8. Fouling the big problem for sensors and systems Anti-fouling technology is one of the most important support technologies for autonomous instruments Anti-fouling technology is one of the most important support technologies for autonomous instruments Protection against or prevention of possible fouling is of great importance for a maintenance- free function over a longer period (long-term stability) Protection against or prevention of possible fouling is of great importance for a maintenance- free function over a longer period (long-term stability)

9. Fouling, how does it work Gluey biopolymers Gluey biopolymers Animals, e.g. mussles and barnacles Animals, e.g. mussles and barnacles Algaes, e.g. green algae and brown algae Algaes, e.g. green algae and brown algae Microorganisms Microorganisms Result: Lose of data quality Result: Lose of data quality

10. Examples of Biofouling Pictures: © GKSS

11. Examples of Biofouling Oceanographic instruments after 3 months of operation, Northsea near Sylt Coating with Resistin

12. Typical Antifouling methods Picture: © Nees-Institut für Biodiversität der Pflanzen Toxic coatings (arsenic, copper, tributyl tin,..) Mechanical (teflon, wilicon, wiper..) Gases (chloration, oxidation, …) Toxic surrounding (acids, toxic fluids,..) Special coatings (micro structures Lotus effect, superficial gel matrix, membranes,..)

13. Tetraetherlipid Tetraetherlipid Thermoplasma acidophilum

14. Coating with Tetraetherlipid 1 2 3 4

15. Laboratory test with isolated species RefTLGDNT TL PLL PEG TL Boronsäure TL Mannose

16. Field tests Reference TL Boronsäure TL Chitosan TL negativ TL PEG TL Mannose

17. CLSM-analysis after BacLight ® -dyeing Reference GDNT PO4 TL PLL PEG 30 TLDOP TL PO4 TL PLL PEG 40 TL Chitosan TL Mannose TL B Trehalose TL B Inulin TL iba TL negativ TL Ectoin TL Hyaluronsäure CLSM: Confucale Laser Scanning microscopy

18. 4H-Aquacontrol New automatic multi parameter device in cooperation with BBE Moldaenke GmbH New automatic multi parameter device in cooperation with BBE Moldaenke GmbH

19. Sensors Two types of Sensor sets Two types of Sensor sets 1. High standard with high accuracy and long durability 1. High standard with high accuracy and long durability Paramters: DO, C, S, T, pH, Chl-a Cyanobacteria, Turbidity Paramters: DO, C, S, T, pH, Chl-a Cyanobacteria, Turbidity 2. standard setting 2. standard setting Devices based on electrochemical prinzips Devices based on electrochemical prinzips pH, Redox, Electrodes,.,.. pH, Redox, Electrodes,.,..

20. Dataformat

21. Intuitive Operation

22. Principle of the watersystem Antifouling: 1. Freshwater 2. Acid Antifouling concept

23. Cleaning results Debubbler after 2 years without manual cleaning © BAH/AWI Iron impurities Cleaning with oxalic acid Rijkswaterstaat © Rijkswaterstaat

24. 2 weeks no freshwater available Debubbler December 2007 Paranaguá Debubbler January 2008 with no antifouling

25. Maintenance and service easy removable sensor cap for service and calibration easy removable sensor cap for service and calibration

26. Data availability Anitfouling => high data quality Anitfouling => high data quality Telemetry (e.g. UMTS) => remote control, Data transfer, Error messages Telemetry (e.g. UMTS) => remote control, Data transfer, Error messages Cost optimising Cost optimising Continuous measurements Continuous measurements

27. Applications Continuous monitoring of sensitive water systems Continuous monitoring of sensitive water systems Automatic monitoring (Water framework Directive) Automatic monitoring (Water framework Directive) Alarms at high Cyanobacteria concentrations at water bodies Alarms at high Cyanobacteria concentrations at water bodies Continuous River monitoring Continuous River monitoring Harbour Measuring Network Harbour Measuring Network Monitoring and controlling of Aquaculture Monitoring and controlling of Aquaculture............

28. Summary The 4H Aquacontrol provides solutions to most of the problems associated with long- term online monitoring of rivers, lakes and coastal zones. The 4H Aquacontrol provides solutions to most of the problems associated with long- term online monitoring of rivers, lakes and coastal zones. The flow trough system combines a easy maintainable sensor frame with integrated antifouling system and the possibility for automatic and remote controlled operation The flow trough system combines a easy maintainable sensor frame with integrated antifouling system and the possibility for automatic and remote controlled operation

29. Thank you very much for your attention