Underwater cleaning technology

WEDA – since 1919 Company founded in 1919 ISO9001:2000 certified production WEDA subsidiaries in Germany and US Distributors and agents in 25 countries Reservoir cleaning service offered on 5 continents

Pool cleaners B600 B450 B680 B480 W50 Reservoir cleaners Products Pool cleaners B600 B450 B680 B480 W50 Reservoir cleaners VR-600 CS-600 YT-800 Sludge collectors SD System

Sludge collection in sedimentation tanks WEDA SD System

Sludge collection in sedimentation tanks WEDA SD system Fixed installation with submersible pumps No basin draining or reservoir downtime Programmable frequency and speed of cleaning For optimization of cleaning results/discharged water Rapid installation – 2 days – minimizes tank downtime Robust and reliable components - little maintenance Man styr den från kontrollrummet SD system

SD system Specifications Sludge collection in sedimentation tanks Dimensions Pump capacity Main voltage Discharge Speed Dimensions are customized to your facility needs Standard system widths from 5’ (2m) to 33’ (10m) Custom configured to your facility needs 400V, 3-phase 3” hose Infinitely variable from 0 to 10ft (3m)/min SD system

Sludge collection in sedimentation tanks Rectangular basin SD system

Sludge collection in sedimentation tanks Circular basin SD system

Sludge collection in sedimentation tanks Strumien WTP, Vodokanal Poland 6 SD-6.6 in 6 sedimentation basins 4 SD-3 in 4 sand filter back-wash tanks SD system

Sludge collection in sedimentation tanks Lovö water works, Stockholm water, Sweden Production 250 000 m3/day 6 SD-10 in 6 basins 10x60m SD system

Sludge collection in sedimentation tanks Meshantucket Pequot Tribal Nation, Connecticut, USA 3 SD-3 in 3 basins Man styr den från kontrollrummet SD system

SD system Tiffin, USA Spiral basin Rectangular basin 25 m long Sludge collection in sedimentation tanks Tiffin, USA Spiral basin SD system Rectangular basin 25 m long

Robotic cleaning of water reservoir WEDA VR-600

Robotic cleaning of water reservoir Description Rotating brush Integrated high capacity pump Video camera with pan/tilt Ligths Optional power brush>>>>>> VR-600

VR-600 Specifications Robotic cleaning of water reservoir Dimensions Weight Pump capacity Main voltage Discharge Speed Power Maximum working depth Floating cable 735 x 595 x 400 mm 82 kg 70 m3/h 400V, 3-phase 2” hose Infinitely variable from 0 to 12m/min 2,5kW 25m Max 160m VR-600

Robotic cleaning of water reservoir VR-600 in Severn Trent reservoir UK Empty tank impossible 1000m2 30 mm of sediment Turbidity cut off limit at outlet: 3 NTU’s Turbidity measures peaked at 0,6NTU’s. Average 0,27 NTU’s Bacteriological tests were all clear Cleaning with VR-600 completed in less than two days VR-600

Robotic cleaning of water reservoir Tank Surface Sediment depth Time of cleaning Turbidity NTU Marietta Water Authority USA 4500 m2 20 cm (average) 10 days Max 0,34 Salem USA 5400 m2 15 cm (average) 67 days Max 0,235 Tallkrogen Sweden 1935 m2 0-10mm 4 days Max 0,09 Trekanten Sweden 3000 m2 5-20 mm - VR-600 System

Dredging of big reservoirs WEDA YT-800

Dredging of big reservoirs YT-800 submersible dredger Cleaning of large slow sand filters and infiltration basins Cleaning of very large open outdoor water storage reservoirs Handles large sediment contents, sand and algae and sea weed Rotating auger or brush Flexible design YT-800

YT-800 Description Dredging of big reservoirs Rotating auger Lifting device for auger 2 separate drive motors Radio remote control Optional video camera YT-800

Dredging of big reservoirs Specifications Dimensions Weight Pump capacity Main voltage Discharge Speed Power Max sediment depth Max particle size 115 x 120 x 900 mm 150 kg 100 m3/h 400V, 3-phase 3” hose Infinitely variable from 0 to 10m/min 5,5kW >100mm 60mm YT-800

Dredging of big reservoirs Rainwater basin cleaning, Aragon, Spain Raw water basin, Paris, France YT-800

Dredging of big reservoirs Infiltration basins Slow sand filters YT-800

Reservoir cleaning WEDA S600 and CS600

Reservoir cleaning Applications Swimming pools with large sand and sediment content Catch ponds in sewage works Fountains and dams in parks Any type of basin and pool with heavy sediment Sedimentation basins Back-wash basins in water works S600/CS600

S600/CS600 Description Reservoir cleaning Sand tracks Rotating brush Integrated high capacity pump Underwater video camera with lights (CS600) Optional Tufram coating for corrosive environments Optional radio control S600/CS600

S600/CS600 Specifications Reservoir cleaning Dimensions Weight Pump capacity Main voltage Discharge Speed Power Floating cable 700 x 630 x 900 mm 82 kg (cleaning unit only) 70 m3/h 400V, 3-phase 2” hose 12m/min 2,5kW 40m S600/CS600

Perisher, Australia August 2004 Reservoir cleaning Perisher, Australia August 2004 S600/CS600

Tasmania, Australia August 2004 Reservoir cleaning Tasmania, Australia August 2004 S600/CS600

Tasmania, Australia August 2004 Reservoir cleaning Tasmania, Australia August 2004 S600/CS600

Tasmania, Australia August 2004 Reservoir cleaning Tasmania, Australia August 2004 S600/CS600

Tasmania, Australia August 2004 Reservoir cleaning Tasmania, Australia August 2004 S600/CS600

Product summary SD System VR-600 CS600 YT-800 Application Settling tanks Drinking water (towers, reservoirs) cleaning+ inspection Catch ponds, rainwater ponds, back-wash ponds Sewage lagoons, raw water basins Basin size (diam) Up to 10x100m (per one unit) Up to 160m Up to 40m Up to 200m Key points Fully automatic system Variable speed, powerbrush Mobile unit, Tufram coating Auger for deep sediment + sea weed