Closed water systems as sustainable technologies for the development of industrial aquaculture in Russia

Transcription

1 Closed water systems as sustainable technologies for the development of industrial aquaculture in Russia Astrid Buran Holan Senior Advisor/ PhD Environmental Engineering Aquaculture Børge Søraas CEO/ Senior Advisor AquaOptima AS Trondheim, Norway Fishtech 2017, Moscow

2 Supplier of recirculation systems for aquaculture (RAS) SINCE 1993

3 AquaOptima AS Trondheim, Norway Part of Steinsvik Group Agents/cooperating partners Indonesia, Bangladesh, Russia and Iran

4 HISTORY AND DEVELOPMENT History: Based on comprehensive research activities in SINTEF in the period AquaOptima has developed industrial products and own technology for intensive fish farming in tanks ECO-TRAP, ECO-FLOW, ECO-TANK

5 AquaOptima RAS projects around the world Atlantic Salmon Barramundi Eel Cobia Halibut Tiger puffer fish Sturgeon Japanese flounder Atlantic Cod Arctic Char Pollock Turbot Seabass Rainbow trout Pike Perch Grouper Seabream Tilapia Whitefish Koi

6 ONSHORE FISHFARMS Feasibility studies Profitability analysis Production plans Detailed design and engineering Equipment supply On-site support of installation and commissioning Operational management

7 Potentials by using RAS EXTENSIVE FARMING: Tilapia: Asian Seabass: 20 tons/ha, y 5 10 tons/ha, y or tons/ha, y with aeration INTENSIVE FARMING: Tilapia: Asian Seabass: tons/ha, y tons/ha, y

8 Potentials by using RAS FLOW-THROUGH Water supply Prod. volume Capacity m3/day 200 m3 1 mill fingerlings/y (25g) RAS Water supply Prod. volume Capacity 3-20 m3/day 200 m3 1 mill fingerlings/y m3/day m3 240 mill fingerlings/y RAS makes it possible to produce fish in areas with lack of water

9 Potentials by using RAS Traditional flow through (FT) Large inlet of new water Small inlet of new water Fish tank Recirculating Aquaculture System (RAS) Fish tank Treatment Large outlet of water Small outlet of water Healthy food production with minimal use of water Control of the rearing environment Independent of the surrounding environment Minimal water discharge and collection of waste for further utilisation

10 Water quality control Parameters to control Particles, fine suspended solids, colloids Organic material NH 3 /NH 4+, NO - 2, NO 2-3 O 2, CO 2, ph, alkalinity, temperature, salinity Microbiology Water treatment and control Particle removal systems Bioreactors Oxygenators Degasser Buffering Disinfection (Ozone/UV) Monitoring

11 Water quality requirements Atlantic salmon/salmonids Parameter TSS TAN (NH 4+ -N plus NH 3 -N) NH 4+ NH 3 + H + (ph dependent) NH 3 N Exercise, feeding and stress dependent NO N Safe levels < 10 mg/l < 2 mg/l < mg/l < 0.1 mg/l Addition of salt (Cl) to the water reduces the toxicity 100:1 (Cl : NO2-N ratio, weight to weight)* NO N < 100 mg/l Ref: Timmons and Ebeling (2007), Thorarensen & Farrell (2011), *Terjesen et al. (2012)

12 Parameter Dissolved O 2 Water quality requirements Atlantic salmon/salmonids Safe levels % saturation O2 consumption depends on body mass, feed intake, temperature, density, current velocity, time from feeding ( g O2/ g feed for salmon, app. 0.6 g O2/ g feed for trout*) CO 2 < 15 mg/l ph Temperature 12 C for Atlantic salmon and C for rainbow trout* Salinity Density < 80 kg/m 3 Ref.: Timmons and Ebeling (2007), Thorarensen & Farrell (2011), *Pers.com. DTU 1-32 ppt (for trout* never >25 ppt., post-smolt often 12 ppt.)

13 Biofilter MBBR NH 3 CO 2 N 2 Degassing AquaOptima RAS SS Belt Filter O 2 SS ECO- TRAP Ozone mix

14 Advantages with AquaOptima RAS Effective and area saving processes ECO-FLOW (Tank hydraulic) Provide optimal tank mixing and self-cleaning ECO-TRAP (AqO invention) Effective system for settable solids removal

15 ECO-FLOW Tank design and water inlet configuration ECO-TRAP 110 Aim Excellent mixing of water (oxygen) Fast removal of solids Horizontal Outlet 15-20% more water volume/less floor area with octagonal tanks

16 Rapid removal of solids from tank, 3-5 min Solids are collected outside the tank in a sludge collector Eco-Trap Particle removal Dry sludge, 6-8% TDM ECO-TRAP 110 ECO-FLOW 225 PE ECO-TANK 150m3 Eco-Trap 110 PVC Solids removed with Eco-Trap Eco-Trap 450 PE

17 Eco-Trap Dead fish removal Open position for removal of mortalities (Pneumatic operation)

18 Suspended solids removal Salsnes Filter microscreen for gentle removal of suspended solids Salsnes Filter installed in AquaOptima Eel Farm in Portugal (FindFresh)

19 Suspended solids removal Alternative method: Drumfilter microscreen Typical efficiency: 50-75% Ref: H.Mortensen, Hydrotech

20 Removal of ammonia, nitrite and CO2 MBBR Moving Bed Biofilm Reactor For ammonia and nitrite removal Packed column following the MBBR For CO2 removal Bacteria NH 3 /NH + NO H + Bacteria NO 3 - Organic material Bacteria CO 2 O 2 O 2 O 2

21 Removal of fine solids Protein skimmers Ozone system Clarity

22 Alternative methods for removal of fine solids Membrane filtration Photo: Langsand laks, Thue Holm, Atlantic Saphire Lello Water Works, Levanger. Photo: Lars Østraat

23 Oxygen Control ECO-TRAP 110 For both seawater and freshwater

24 Dewatering unit Inlet Outlet The sludge can be used as fertilizer, biogas production, aquaponics, etc.

25 Monitoring/control principle chart

26 Control room

27 Kharp, Russia Sturgeon and Whitefish Sturgeon meat 10 tons/y and caviar production 2,5 tons/y Hatchery for Whitefish 10 mill/y á 1.5g, 1 mill/y á 30 g and 0,4 mill/y á 100 g

28 Idagida Ltd, Turkey Seabass and Seabream 200 tons/y Hatchery, Nursery and Grow-Out Grow-out, ECO-TANK 150m3 Nursery, ECO-TANK 20 m3

29 Yantai Salmon Farm, China FIRST LANDBASED SALMOM FARM with RAS Since Jan 2012 salmon of 3-5 kg on the market Smolt department (50 m3 tanks) MBBR Biofilter

30 Nofima, Norway The world s largest R&D facility for RAS Fish welfare, water quality requirements 100 m3 tanks

31 Eel 500 tons/y FindFresh, Portugal Glass eel department Grow-out department

32 Optima Foods, Japan Tiger puffer fish Nursery and Grow-out department 1-2 % exchange of water per day Nursery

33 Villmarksfisk AS, Norway Arctic Char, 50 tons/y

34 Halibut Storfosen Havbruk AS, Norway Nursery 8 x 15 m3 tanks, Grow-out 8 x 50 m3 tanks

35 Aquabella, UK Nursery 1 3m tanks Nursery 2 4m tanks Barramundi, 400 tons/year From 0.5 g to market size

36 Grow-out Aquabella, UK

37 PT Yapen MS, Indonesia Barramundi 12 batches/y á 200,000 of 20g Hatchery footprint 1,950 m2

38 Installation supervision Starting up

39 Management supervision - Training

40 Thank you for your attention! -and enjoy!