Aquacontrol - New automatic multiparameter Aquacontrol - New automatic multiparameter devicedevice

for environmental task with special aspects tofor environmental task with special aspects to

antifouling and data availabilityantifouling and data availability

Tobias BoehmeTobias Boehme-4H- JENA engineering GmbH-4H- JENA engineering GmbH

Company profileCompany profile Fouling/AntifoulingFouling/Antifouling AquacontrolAquacontrol SummarySummary

ContentsContents

Company profileCompany profile

Windtunnel Windtunnel techniquestechniques

Optical inspection Optical inspection techniquestechniques

Optical Optical devicesdevices

Marine Marine measuring measuring techniquestechniques

Windtunnel techniquesWindtunnel techniques

Windtunnel RenaultWindtunnel RenaultOxford EnglandOxford England

-Sauber-Petronas SchweizSauber-Petronas Schweiz-Behr StuttgartBehr Stuttgart-Uni LüttichUni Lüttich-Uni KasselUni Kassel-Toyota KölnToyota Köln-Ariolos MünchenAriolos München-BMW MünchenBMW München

Optical inspection techniquesOptical inspection techniques

Three coordinates measuring device

Optical devicesOptical devices

Albert Einstein RefractorAlbert Einstein Refractor Bamberg Refractor BerlinBamberg Refractor Berlin

MarinMarinee measuring measuring techniquestechniques

Fouling the big problem for Fouling the big problem for sensors and systemssensors and systems

Anti-fouling technology is one of the most Anti-fouling technology is one of the most important support technologies for important support technologies for autonomous instrumentsautonomous instruments

Protection against or prevention of Protection against or prevention of possible fouling is of great importance for possible fouling is of great importance for a maintenance-free function over a longer a maintenance-free function over a longer period (long-term stability)period (long-term stability)

Fouling, how does it workFouling, how does it work

Gluey biopolymersGluey biopolymers Animals, e.g. mussles and barnaclesAnimals, e.g. mussles and barnacles Algaes, e.g. green algae and brown algaeAlgaes, e.g. green algae and brown algae MicroorganismsMicroorganisms

Result: Lose of data quality Result: Lose of data quality

Examples of BiofoulingExamples of Biofouling

Pictures: © GKSS

Examples of BiofoulingExamples of Biofouling

Oceanographic instruments after 3 months of Oceanographic instruments after 3 months of operation, Northsea near Syltoperation, Northsea near Sylt

Coating with Resistin

Typical Antifouling Typical Antifouling methodsmethods

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, ..)

TetraetherlipidTetraetherlipid

O

O

O

O

O

OP

CH2OH

OH

OH

OH

O

O

OH

OH

OH

TetraetherlipidTetraetherlipid

Thermoplasma acidophilumThermoplasma acidophilum

Coating with Coating with TetraetherlipidTetraetherlipid

1 2 3 4

Laboratory test with isolated Laboratory test with isolated speciesspecies

RefRef TLTL GDNTGDNT

TL PLL PEGTL PLL PEG TL BoronsäureTL Boronsäure TL MannoseTL Mannose

Field tests Field tests

Reference TL Boronsäure TL ChitosanReference TL Boronsäure TL Chitosan TL negativ TL PEG TL negativ TL PEG TL TL MannoseMannose

CLSM-analysis after BacLightCLSM-analysis after BacLight®®--dyeingdyeing

ReferenceReference GDNT PO4GDNT PO4 TL PLL PEG 30TL PLL PEG 30

TL DOP TL PO4 TL PLL PEG 40

TL ChitosanTL Chitosan

TL Mannose

TL B Trehalose

TL B Inulin

TL iba

TL negativ

TL Ectoin

TL Hyaluronsäure

CLSM: Confucale Laser Scanning microscopy

4H-Aquacontrol4H-Aquacontrol New New automatic multi parameter automatic multi parameter

device device in cooperation with BBE in cooperation with BBE Moldaenke GmbHMoldaenke GmbH

SensorsSensors Two types of Sensor setsTwo types of Sensor sets 1. High standard with high accuracy 1. High standard with high accuracy

and long durabilityand long durability

Paramters: DO, C, S, T, pH, Chl-a Paramters: DO, C, S, T, pH, Chl-a Cyanobacteria, TurbidityCyanobacteria, Turbidity

2. standard setting2. standard setting Devices based on electrochemical Devices based on electrochemical

prinzips prinzips pH, Redox, Electrodes, .,..pH, Redox, Electrodes, .,..

DataformatDataformat

Intuitive OperationIntuitive Operation

Principle of thePrinciple of thewatersystemwatersystem

Antifouling:Antifouling:

1. Freshwater1. Freshwater

2. Acid2. Acid

Inlet

Outlet

Probe

Probe

Probe

Circulation pump

Inlet

Outlet

Probe

Probe

Probe

Circulation pump

Freshwater

Inlet

Outlet

Probe

Probe

Probe

Circulation pump

Freshwater

Acid

Antifouling conceptAntifouling concept

Cleaning resultsCleaning resultsDebubbler after 2 years Debubbler after 2 years

without manual without manual cleaningcleaning

© BAH/AWI

Iron impuritiesIron impuritiesCleaning with oxalic acidCleaning with oxalic acid

© RijkswaterstaatRijkswaterstaat

2 weeks no freshwater available2 weeks no freshwater available

Debubbler DecemberDebubbler December

2007 Paranaguá2007 ParanaguáDebubbler January Debubbler January 2008 with no 2008 with no antifoulingantifouling

Maintenance and service Maintenance and service easy removable sensor cap for service easy removable sensor cap for service

and calibrationand calibration

Data availabilityData availability

Anitfouling => high data qualityAnitfouling => high data quality Telemetry (e.g. UMTS) => remote Telemetry (e.g. UMTS) => remote

control, Data transfer, Error messagescontrol, Data transfer, Error messages Cost optimisingCost optimising Continuous measurements Continuous measurements

ApplicationsApplications Continuous monitoring of sensitive Continuous monitoring of sensitive

water systemswater systems Automatic monitoring (Water Automatic monitoring (Water

framework Directive)framework Directive) Alarms at high Cyanobacteria Alarms at high Cyanobacteria

concentrations at water bodiesconcentrations at water bodies Continuous River monitoringContinuous River monitoring Harbour Measuring NetworkHarbour Measuring Network Monitoring and controlling of Monitoring and controlling of

AquacultureAquaculture ...... ......

SummarySummary

The 4H Aquacontrol provides solutions The 4H Aquacontrol provides solutions to most of the problems associated with to most of the problems associated with long-term online monitoring of rivers, long-term online monitoring of rivers, lakes and coastal zones.lakes and coastal zones.

The flow trough system combines a The flow trough system combines a easy maintainable sensor frame with easy maintainable sensor frame with integrated antifouling system and the integrated antifouling system and the possibility for automatic and remote possibility for automatic and remote controlled operationcontrolled operation

Thank you very much Thank you very much for your attentionfor your attention