Disc Diffuser For Aquaculture

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Disc Diffuser For Aquaculture
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What are Disc Diffuser?

• The Disc diffuser are of two types, Fine and
  coarse bubble disc diffuser.
• It has advanced membrane technologies for
  superior aeration performance, flexibility,
  reliability and superior product life.
• Multiple membrane perforations are available to
  optimize the performance of the diffuser for
  maximum operating efficiency, air handling.

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Disc Diffuser
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Fine Bubble Disc Diffusers For Aquaculture
1. Along with surface aerators, fine bubble
aeration is one of the most often selected
solutions for aquaculture. 2. Installed at the
bottom of the pond, fine bubble aerators release
tiny bubbles that slowly rise to the surface of
the water. 3. These thousands of tiny bubbles
collectively have a very large surface area. As a
result, they can efficiently and effectively
transfer oxygen to the entirety of the water
column. Read more Use of Disc Diffusers for
Hatcheries
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Types Of Fine Bubble Disc Diffuser

• Membrane Disc Diffusers
• Tube Diffusers
• Perforated Tubing
• For more information call 91 - 7285017087

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Membrane Disc Diffuser
1. Typical membrane disk diffusers are going to
be between 9? and 11? in diameter. 2. They are
composed of EPDM rubber, mounted on a base plate,
and will screw into a header or lateral. 3. The
EPDM will expand as air is pumped through it,
which will open hundreds of small perforations.
This results in the release of thousands of fine
bubbles (less than 2mm in diameter).
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Tube Diffusers

• Most tube diffusers are made from a rigid ceramic
  or hollow plastic cylinder.
• These cylinders are long and thin, and are
  surrounded by EPDM rubber.
• The air is transferred and released in the same
  manner as the disks, except tube diffusers
  generally offer more surface area than disks, and
  thus can release more fine bubbles.
• Explore AirOxi Tube Aerators Aquaculture
  Aeration Solutions

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Perforated Tubing

• This type of diffuser, sometimes referred to as
  Bubble Tubing, is generally composed of LDPE
  with slits or holes punched in it.
• These small holes then leak air at pressurized
  airflow.
• However, this type of LDPE diffuser does not
  expand and contract to open these perforations in
  the same manner that the tube and disk diffusers
  do.

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The Benefits of Fine Bubble Aeration (Pros)

1. Energy Efficiency
2. Improved DO level
3. Fewer Motors To Maintain

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1. Energy Efficiency

• Boasting an Standard Aeration Efficiency (SAE) of
  47 lbs O2/hr/hp-wire, very few aeration
  technologies can compete with the fine bubble in
  terms of energy efficiency.
• In many cases, switching from alternative lagoon
  aeration technologies, such as surface aeration
  or coarse bubble aeration, can save anywhere from
  4060 (or more) on energy costs.

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2. Improved Dissolved Oxygen

• Similarly, fine bubble aeration can also achieve
  Standard Oxygen Transfer Efficiencies (SOTE) of
  1.82.2 per foot of submergence.
• Any other system on the market will have a very
  difficult time matching this type of oxygen
  transfer efficiency performance.
• If youre installing a fine bubble aeration
  system in your wastewater lagoon, its safe to
  expect noticeable increases in dissolved oxygen
  (DO).

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3. Fewer Motors To Maintain

• In comparison to surface aerators, a fine bubble
  aeration system will likely have fewer motors to
  maintain.
• For example, where a typical surface aeration
  system may have 510 surface aerators, a fine
  bubble system will typically only have 23
  blowers. Moreover, these motors are more easily
  accessible as they are onshore.
• This cuts down on maintenance time, materials,
  and hassle.

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The Disadvantages of Fine Bubble Aeration (Cons)

1. Difficult to Install
2. Fouling Clogging
3. Insufficient Mixing

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1. Difficult To Install

• Many traditional fine bubble aeration systems are
  either secured to fixed laterals at the bottom of
  the lagoon, or hanging from floating laterals.
• With fixed laterals, the lagoon must be drained
  and desludged for the installation.
• You can expect this to be both costly and time
  consuming. With floating laterals, youll need to
  install the diffusers and laterals amphibiously
  this can be a laborious and potentially

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2. Fouling Clogging

• Any fine bubble aeration technology is
  susceptible to bacterial fouling.
• This is the process whereby bacteria form on the
  surface of the diffuser and impinge upon the
  orifices.
• This causes increased back-pressure and wear on
  the blower, thereby increasing energy and
  maintenance costs.

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3. Insufficient Mixing

• Fine bubble aerators are extremely efficient when
  it comes to transferring oxygen. However, fine
  bubbles alone are not as effective when it comes
  to mixing.
• Fine bubbles rise through the water rather
  calmly, often allowing solids to settle. Fine
  bubbles can also fail to create the contact
  between microorganisms and nutrients that is
  necessary for a more efficient breakdown and
  overall water treatment.
• Over time this can lead to sludge buildup.
  Increased amounts of sludge result in less
  effective treatment overall, and the costly
  process of removing sludge from the wastewater
  lagoon.

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Why AirOxi Tube?

• AirOxi is one of the latest technologies for
  aquaculture aeration.
• It is designed specially for commercial
  aquaculture and has been successfully installed
  in hundreds of acres of aquaculture ponds.
• It has high efficiency in both salt water and
  fresh water.
• It Helps to maintain water quality for fish
  culture and shrimp culture.

For more information visit http//www.airoxitube.
com/about-air-oxitube/
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