Z.K. AQUA is...
- Specialized in design and construction of re-circulated freshwater and saltwater fish farms.
- Specialized in upgrading and improving older or disfunction systems.
- Specialized in aquarium like ocean pavilion.
- Has upgraded many farms; with drum filters or disc filters, oxygen systems and ultra violet. These farms are making after this upgrading at least the calculated production.
- Is supplier of design and materials for farmers who will do the upgrading of installations themselves.
Operational principle:
Zhongke's protein skimmers are designed as filter system which material of a common filter
system is replaced by air bubbles. The function is water enters the protein skimmer at the top
and flows down to the bottom. The air is introduced near the bottom by sucked in by an
injector (venturi) and small bubbles rise against the water stream to the top. The airflow
should be sufficient enough to fill the cross area of the protein skimmer.
When designing our protein skimmers, great attention was paid to obtain a relatively large
volume to get nearly laminar flow conditions. This is very important for the contacting of the
air bubbles to the protein compound as well as to the waste particles. When the air bubbles
have passed the reaction tube of the protein skimmer they reach the water level and together
with waste particles and proteins they form a viscous foam in which proteins link the air
bubbles and the waste particles.
What are the Main Advantages of a Protein Skimmer
Compared to a Mechanical Filter?
1. The protein skimmer removes protein compounds and other organic substances before they
are decomposed to toxic substances.
2. Waste and toxic substances which have been foamed into the foam beaker are totally
seperated from the water and it's circuit!
3. Water which has passed the protein skimmer is purified of waste and furthermore highly
enriched with oxygen which is essential for aquaculture life!
Which Kind of water Can Be Equipped With a Protein Skimmer?
Protein skimmers can only be used in salt water aquaculture.
The diagram below shows that already at a salt
concentration of only 10 per mille bubble diameters of less than 1 mm are found.
This is of importance as the
smaller the air bubbles the better the contacting of the bubbles to waste particles. So protein skimmers do
not only work in water with a high salt concentration, as the Red Sea or Pacific water with 35 per mille and
more, but also in water of the eastern seas with only 15 per mille. In salt water there are good results for
quite different species of animals. So protein skimmers are used successfully for ornamental fish as well as
fish for food, in aquaculture recirculation system.
Details pictures of the protein skimmer
FAQ
Q: What are your factory main products?
A: We have been focused on aquaculture equipment produce. The main products are live fish transportation container, drum
filter, protein skimmer, bio-filter system, UV sterilizer, ozone generator, fish tanks.
Q: Can you make the design for RAS ?
A: Sure. We have a professional AQUA team in Norway focused in RAS fishery for more than 40 years. We have successfully
developed the RAS for salmon, red trout and tilapia in Europe and north American. We have cooperated with GenoMar and
AquaGen for the breeding and nursery system build-up.
Q: What is your product warranty ?
A: The warranty is 12 months while the lifetime is 10-15 years under good maintenance.It is durable and anti-corrosion.
Q: What is the payment term ?
A: Our payment is T/T , 30% deposit, 70% balance payment before shipment.
Q: We haven't imported before, can you ship the goods to our warehouse?
A: Yes. Although our normal trade term is EXW, FOB, CIF, we can also arrange logistics to your warehouse.
Q: How to assemble the equipment once we received it?
A: The CAD install instruction, assembly procedure and project case will be provided.,Of course our skilled installation engineers
would go to your country and install the equipment if needed.
Q: What is your MOQ?
A: Normally, our MOQ is 1 set.
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