Grease Arrestor

Grease Arrestors - Austere Pumps

Overview

A grease arrestor by AUSTERE PUMPS is a system that is made from high strength and long-life fibre reinforced polymers to intercept and remove almost all greases and solids before they enter the water systems. The processes used in grease arrestors are very simple in theory, and hence provide a simple yet highly effective method of removing grease from sewerage. The grease is collected in these large systems where the grease layer is decomposed and broken down in an anaerobic process.

Without the use of AUSTERE PUMPS grease arrestors and the large amounts of oil and grease produced in food production processes, the sewerage can become overwhelmed with grease and cause septic tanks or treatment facilities to overflow and spew out untreated water into the environment. This can have a major impact on the marine life and ecology.

Grease Arrestor Type of Product

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Belowground Horizontal

Designed for easy and simple underground installation, these are lightweight and have a long life due to high corrosion resistance.

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Aboveground Horizontal

Designed for easy and simple installation due to their above ground fibreglass feet, they are lightweight and designed for long life and for high corrosion resistance.

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Belowground Vertical

The Vertical Below ground Grease arrestor systems are designed to be space savers. These systems ensure that the required capacities of your site are met, whilst minimising excavation area and space.

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Aboveground Vertical

The Vertical Above ground Grease arrestor systems are designed to be space savers. These Vertical grease arrestors are designed with the high corrosion resistance, long life, lightweight and high strength aspects.

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Process

The process is based on a simple principle that the food solids in the water have the higher density compared to water, therefore they will settle down. Whereas the oils and grease have a lower density than water and hence they will float. Therefore, utilising the density and gravity a separation is achieved, and the outlet is designed in the middle section.

The wastewater from the restaurants and the food joints enters via the inlet and with the help of a stilling tube the turbulent flow of water is changed to laminar and a homogenous flow. Further the water has to go through a flow control or a surge device that reduces the velocity of water allowing enough time for the separation of oils, fats and grease as well as the food solids from the wastewater.

Features and Applications

  • Designed and Manufactured to Australian Standards
  • Easy Installation
  • Fast Delivery
  • Australian Made
  • Light Weight FRP Filament Wound Construction for:
    • No long-term deflection
    • No Buckling Under Ground Loads
    • Longevity of life
    • Easy cleaning due to smooth walls and no internet ribs

Product Structure

Grease Arrestor Product Structure
  1. Inlet – The wastewater enters the grease arrestor via the inlet.
  2. Stilling Tube – to ensure the turbulence in the flow is reduced and there is a homogenous flow.
  3. Control or surge device – To reduce the velocity of water to ensure maximum contact time
  4. Outlet – The water separated from food solids and OFGs passes out of here.
  5. Maintenance Accessway – An accessway for maintenance of the grease arrestor
  6. Ventilation – Cross ventilation to prevent trapping of the gases.

Product Structure

Design and Construction Standards of Austere Pumps Grease Arrestors

  • ASME RPT-1 Reinforced Thermoset Plastic Corrosion-Resistant Equipment
  • AS2634 – Chemical plant equipment made from glass-fibre reinforced plastics
  • AS1546 – Underground tank design
  • AS1170 – Loading code

Design Methodology of Austere Pumps Grease Arrestors
The underground tank Design Methodology is based on the use of the above standards as described, where applicable:

  • ASME RTP-1 is used to formulae the Design of the shell under external soil/groundwater loading is based on design for external collapse.
  • AS2634 – is used to formulae the design & manufacture and installation of the Penetrations to the stations
  • AS1546 is used to formulae the design load of soil/groundwater and use for the testing methods applied.
  • AS1170 is used to formulae the design loads from active loads that the stations are subject to, including the required roof slab design. This standard is also used to formulae the ballast requirements for anti-floatation.

Warranty
5 years