Aquaculture Systems Technologies, LLC (AST) was founded by Douglas Drennan, in October 1995, as a direct result of the acquisition of Armant Aquaculture, Inc. (AAI). AST acquired from AAI certain assets including, but not limited to, the exclusive manufacturing, marketing and sales rights for `Propeller-Washed Bead Filters` and similar non-exclusive rights for the `Bubble-Washed Bead Filters`. Both filter configurations are patented, and AST has an exclusive licensing arrangement with the patent holder.

Company details

108 Industrial Ave , New Orleans , Louisiana 70121 USA

Locations Served

Our Distributors

Our Manufacturers

Business Type:
Manufacturer
Industry Type:
Agriculture - Aquaculture
Market Focus:
Nationally (across the country)
Year Founded:
1995

This company also provides solutions for environmental applications.
Please, visit their profile in environmental-expert.com for more info.

Aquaculture Systems Technologies, LLC (AST) was founded by Douglas Drennan, in October 1995, as a direct result of the acquisition of Armant Aquaculture, Inc. (AAI). AST acquired from AAI certain assets including, but not limited to, the exclusive manufacturing, marketing and sales rights for “Propeller-Washed Bead Filters” and similar non-exclusive rights for the “Bubble-Washed Bead Filters”. Both filter configurations are patented, and AST has an exclusive licensing arrangement with the patent holder. Shortly after completing the acquisition, Douglas set about refining the complete line of propeller-washed bead filters which his new company would offer, doubling the number of filter models available from three units (PBF-8, PBF-20 and PBF-30) to six units (PBF-3, PBF-5, PBF-10, PBF-25, PBF-50 and PBF-100) and improving the design by increasing pressure tolerances from 15 psi to 20 psi on all of the fiberglass units, installing FRP coupling in place of bulkhead fitting for the inlet/sludge outlet on the side of the filters and using mechanical seals in place of packing on the filter head where the shaft penetrates the filter hull.

Today, AST’s product line features ten propeller-washed bead filter models with bead  capacities ranging from 3 ft3 to 100 ft3 and seven bubble-washed bead filter models with bead capacities from 1/4 ft3 to 10 ft3 .  These filters are often referred to as bioclarifiers for their ability to perform both biological and mechanical filtration in a single unit.  Bead filters operate very much like submerged rock beds or undergravel filters, with the added advantage of easy cleaning.

Bead filters are generally classified as expandable granular biofilters and are distinguished by the use of buoyant granular media.  The packed bed of plastic beads, through which water from the tank passes, captures solid waste (100% of particles >50 microns and 48% of particles 10-50 microns).  Simultaneously the beads provide 400 ft2 / ft3 of surface area for the attachment of nitrifying bacteria, which metabolize dissolved nitrogenous waste.

AST also offers seven proprietary bead filter controllers, which automate filter backwashing.  The controllers contain a programmable microcomputer and a central processing unit with random-access and read-only memory devices.  All controllers offer a choice of 16 preset backwash frequencies.  Additionally, the propeller-washed filter controller has 16 settings to control the duration of propeller mixing and 16 settings to control the sludge drain time.

Launched

Aquaculture Systems Technologies, LLC (AST) was founded by Douglas Drennan, in October 1995, as a direct result of the acquisition of Armant Aquaculture, Inc. (AAI). AST acquired from AAI certain assets including, but not limited to, the exclusive manufacturing, marketing and sales rights for “Propeller-Washed Bead Filters” and similar non-exclusive rights for the “Bubble-Washed Bead Filters”. Both filter configurations are patented, and AST has an exclusive licensing arrangement with the patent holder. Shortly after completing the acquisition, Douglas set about refining the complete line of propeller-washed bead filters which his new company would offer, doubling the number of filter models available from three units (PBF-8, PBF-20 and PBF-30) to six units (PBF-3, PBF-5, PBF-10, PBF-25, PBF-50 and PBF-100) and improving the design by increasing pressure tolerances from 15 psi to 20 psi on all of the fiberglass units, installing FRP coupling in place of bulkhead fitting for the inlet/sludge outlet on the side of the filters and using mechanical seals in place of packing on the filter head where the shaft penetrates the filter hull.

Today

Today, AST’s product line features ten propeller-washed bead filter models with bead  capacities ranging from 3 ft3 to 100 ft3 and seven bubble-washed bead filter models with bead capacities from 1/4 ft3 to 10 ft3 .  These filters are often referred to as bioclarifiers for their ability to perform both biological and mechanical filtration in a single unit.  Bead filters operate very much like submerged rock beds or undergravel filters, with the added advantage of easy cleaning.

Bead filters are generally classified as expandable granular biofilters and are distinguished by the use of buoyant granular media.  The packed bed of plastic beads, through which water from the tank passes, captures solid waste (100% of particles >50 microns and 48% of particles 10-50 microns).  Simultaneously the beads provide 400 ft2 / ft3 of surface area for the attachment of nitrifying bacteria, which metabolize dissolved nitrogenous waste.

Product Expansion

AST also offers seven proprietary bead filter controllers, which automate filter backwashing.  The controllers contain a programmable microcomputer and a central processing unit with random-access and read-only memory devices.  All controllers offer a choice of 16 preset backwash frequencies.  Additionally, the propeller-washed filter controller has 16 settings to control the duration of propeller mixing and 16 settings to control the sludge drain time.

Research and Development

Although the core of our business is the manufacture and sale of bead filters, AST is continually working to develop new products to improve recirculating aquaculture technology.  See R&D for more information on products and technologies currently under development.