How does the RAS (recirculating aquaculture system) work ?
Summary
TLDRThe video explores the workings of a RAS (Recirculating Aquaculture System) fish farming operation, which differs from traditional sea or cage farming. Fish are raised indoors in controlled environments, similar to modern chicken farming. The RAS process involves recirculating water multiple times through various technologies, including mechanical and biofiltration systems. These systems filter out waste, remove harmful ammonia, and add oxygen back into the water. Although RAS offers a sustainable approach to fish farming, it requires mastery of complex technologies, high costs, and risks. The video emphasizes understanding these challenges before investing in land-based fish farming.
Takeaways
- 🐟 Rust farming involves raising fish in indoor tanks under controlled environments, unlike traditional sea or cold-water cage farming.
- ♻️ The key concept of rust farming is recirculating water, allowing the fish to grow in the same water multiple times with gradual addition of new water.
- 🧪 Water from the fish tanks goes through mechanical filters to remove solid particles like uneaten feed and fish waste.
- 🦠 Biofiltration is a crucial step where biofilters remove ammonia from the water, converting it into nitrogen with the help of beneficial bacteria.
- 💨 Harmful gases such as carbon dioxide and nitrites are removed using degassing technology to ensure water quality is maintained.
- 🌬️ Oxygenation technologies reintroduce oxygen into the water before sending it back to the fish tanks.
- 🔄 This recirculation process happens multiple times, with new water being gradually added to maintain water quality.
- 💡 Rust farming requires mastering various technologies and processes before one can confidently pursue it due to high costs and risks.
- 💧 The process ensures that the water is continuously cleaned and filtered to support healthy fish farming.
- ⚠️ While rust farming is efficient, it involves significant complexities, making it not an easy or guaranteed method for all farmers.
Q & A
What is the main difference between rust fish farming and traditional fish farming methods?
-Rust fish farming is conducted in indoor tanks under a controlled environment, while traditional methods like sea cage farming involve fish being raised in open water or cages placed in seas or lakes.
How does water circulation work in rust fish farming?
-The water in rust fish farming is recirculated multiple times with the gradual addition of new water to maintain a clean and healthy environment for the fish.
Why is biofiltration necessary in rust fish farming?
-Biofiltration is necessary to remove harmful ammonia from the water, which is produced by fish waste. Good bacteria convert the ammonia into nitrogen, which is released into the air.
What role does the mechanical filter play in the rust fish farming process?
-The mechanical filter removes solid particles like leftover feed and fish waste from the water, ensuring that the water is clean for the next stages of filtration.
What are the harmful gases removed in the degassing step of rust fish farming?
-Harmful gases such as carbon dioxide and nitrite are removed during the degassing process to ensure the water is safe for the fish.
How is oxygen added back into the water after the filtration process?
-Oxygen is reintroduced into the water using oxygenation technology, which ensures that the water is suitable for the fish before it is recirculated into the tanks.
Why is rust fish farming considered a high-risk and costly operation?
-Rust fish farming requires advanced technology, high levels of control, and expensive equipment, making it a costly and high-risk endeavor compared to traditional fish farming methods.
How do fish interact with their water environment in rust fish farming?
-In rust fish farming, fish live, eat, and release waste in the same water, which is why water filtration and recirculation are critical to maintaining water quality.
What is the purpose of adding new water to the recirculated system?
-Adding new water to the recirculated system ensures that the water quality is maintained by diluting contaminants and maintaining the overall balance of the system.
What technologies are involved in rust fish farming to maintain water quality?
-Rust fish farming utilizes several technologies, including mechanical filters, biofilters, degassing systems, and oxygenation technologies to maintain optimal water quality for fish.
Outlines
🐟 Introduction to Rust Fish Farming
This paragraph introduces the topic of the video, which focuses on the operation of rust (recirculating aquaculture systems) fish farming. It briefly compares traditional fish farming with this method, highlighting that rust fish farming occurs in indoor tanks under controlled environments, similar to modern chicken farming practices.
🔄 What is Rust Farming?
Here, the concept of rust farming is explained. It involves water recirculating within a system, allowing fish to live in the same water for extended periods. The water is gradually replenished with new water, while various technologies are utilized to maintain the water quality.
🚰 Water Filtration and Fish Tank Setup
This paragraph describes the process where fish are placed in water tanks and how the water goes through different filtration systems. After the water is discharged from the tanks, it contains leftover feed, fish waste, and other particles, which are removed by a mechanical filter.
💩 Mechanical Filtration of Solids
Here, the focus is on mechanical filtration. Fish waste and uneaten feed are filtered out, cleaning the water for further steps. The paragraph emphasizes how fish live, eat, and excrete in the same water, making the filtration process crucial for maintaining cleanliness.
🦠 Biofiltration and Ammonia Removal
This section explains the biofiltration step, where harmful ammonia is removed from the water using biofilters. The ammonia is consumed by beneficial bacteria and converted into nitrogen, which is then safely released into the air, ensuring a healthy environment for the fish.
🌬 Degassing and Oxygenation
In this paragraph, the degassing process is covered, where harmful gases like carbon dioxide and nitrite are removed from the water using degassing technologies. Afterward, oxygen is reintroduced to the water, making it safe for the fish when it is cycled back into the tanks.
🔄 Reintroducing Water and Continuation of the Cycle
This paragraph summarizes the final steps in the rust farming process. After filtration and oxygenation, the water is reintroduced to the fish tanks. The process repeats with the addition of some new water to maintain quality. The paragraph concludes by reiterating the cyclic nature of the system.
⚠️ Challenges and Risks of Rust Farming
The video wraps up by discussing the complexities and risks associated with rust and land-based fish farming. It emphasizes that while the technology is promising, it requires significant expertise and involves high costs and risks. The video encourages further learning before pursuing this method.
Mindmap
Keywords
💡Rust System
💡Recirculating Aquaculture System (RAS)
💡Fish Farming
💡Indoor Tanks
💡Controlled Environment
💡Mechanical Filter
💡Biofiltration
💡Ammonia
💡Degassing Technology
💡Oxygenation
💡Land-based Fish Farming
Highlights
The rust system involves recirculating water to raise fish in the same water through multiple cycles.
Rust farming operates in indoor tanks under controlled environments, unlike traditional sea cages.
Rust farming is similar to modern chicken farming in environmentally controlled facilities.
The water in the system is gradually replenished with new water while being recirculated multiple times.
The water from the fish tanks passes through mechanical filters to remove solid particles, including uneaten feed and fish waste.
Biofiltration removes harmful ammonia from the water, converting it into nitrogen with the help of beneficial bacteria.
Ammonia, if left in the water, negatively impacts the fish's environment but is safely released into the air after biofiltration.
Degassing technology is used to remove harmful gases like carbon dioxide and nitrite from the water.
Oxygen is reintroduced to the water before it is sent back to the fish tanks to ensure proper oxygen levels for the fish.
The recirculation process allows water to be reused several times, minimizing water waste.
New water is gradually added to the system, maintaining a balance between recirculation and fresh water input.
Rust farming relies on advanced technologies for filtration, biofiltration, degassing, and oxygenation to maintain optimal water conditions.
The video emphasizes the high costs and risks involved in rust farming, cautioning potential adopters.
Before entering rust farming, mastering the required technologies and processes is crucial due to its complexity.
Rust farming offers a sustainable approach to fish farming, but it's not a one-size-fits-all solution and requires tailored approaches.
Transcripts
in this video
you will see that how rust system works
you will see the different steps which
are involved
in the rust farming operation when you
think about fish farming
the picture of cold or sea cage comes in
the mind
but transforming is different the fish
is raised
in indoor tanks under controlled
environment
it is somewhat similar to the way
chickens are raised in the modern
environmentally controlled
facilities
but wait what is ross farming
as the name suggests the water
recirculate
in the system so that the fish is formed
in the same water by recirculating it
several times so how does the ross fish
farming works
the water is recirculated multiple times
with a gradual addition of new water in
the system
all the rust processes involve several
technologies which we are going to
discuss
further the fish is placed
in the water tanks and the water goes to
different filters
[Music]
the water discharge from the fish tanks
goes to the mechanical filter and this
water have feed particles
and fish poo in it because
fish live in the same water and pour in
the same water
and also eat in the same water
interesting
right let's get back to the topic
as you know when the fish is fed
we feed it does not eat all the feed
the leftover feed goes to mechanical
filter
and of course with the fish pool
together
the mechanical filter then filtrate
all these solid particles and
water apparently comes out
clean for the next step
the water which is now without any
solids
comes to the next step which is called
biofiltration in this step the
biofiltration
is done with the help of biofilters the
biofilters
removes the ammonia out of water
because ammonia is harmful for the water
environment
where the fish is living this ammonia is
then used
up by the good bacterias which convert
it
into nitrogen and it is then released
to the air without causing
any harmful impact on the water quality
[Music]
the water at this stage is not
completely ready
to be sent back to the fish tanks in
this step
of gas removal the different harmful
gases
like carbon dioxide and nitrite are
removed
with the help of degassing technology
after the removal of dangerous gases the
oxygen
is added to the water with the help of
oxygenation technologies so that the
water could be ready to be used by fish
when it goes back to the tanks
after going through all these steps the
water is
reintroduced to the tanks and the
process
continues several times with
some new water addition at the same time
hope you have enjoyed learning about the
ross
and all this information we have
compiled
related to the land-based fish farming
for grass farming
is not something you can take
as the golden rule
there are many different aspects which
you need to master
before you can be completely confident
about going into that direction
of rashford and land-based fish farming
because the costs are so high
and the risks are so high but anyway i
hope you enjoyed this video
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