EST grease separators
Efficiently remove grease and oils from wastewater in the food industry and gastronomy
Compliance with the PN-EN 1825 standard ensures that the effluent is safe for the sewer network
This prevents blockages, protects the environment, and enhances the efficiency of your business. Easy to use and reliable, our separators are the key to cleanliness and efficiency in your operations.
Benefits of use
simple device construction: separators have a sealed concrete body, usually not requiring additional ballasting,
easy ground-level operation,
can be installed in trafficked areas,
CE marking allowing use within the European Union,
limits corrosion of metallic installation components by cleaning the effluent of grease,
prevents rotting processes in the sewer system; gases such as methane and hydrogen sulphide are not emitted.
Application
Grease separators are used in:
- restaurants,
- fast food outlets,
- canteens,
- butcheries,
- dairies,
- mass catering kitchens,
- agricultural and food processing facilities.
According to Polish law, it is prohibited to discharge solid waste that can reduce pipe capacity, as well as liquid wastes that do not mix with water, into the sewer system.
Regulations on this are found in the Act of 7 June 2001 on collective water supply and collective wastewater disposal (Journal of Laws of 2006, No. 123, item 858 as amended). Gastronomic venues are obligated to dispose of used frying oil and record its disposal. As the owner of a business in the gastronomy sector, you are responsible for ensuring that fats do not enter the sewer along with other wastewater.
If you are the owner of a restaurant, hotel, or company related to the food industry, this device is essential!
Types of grease separators
The introduction of grease into sewer systems creates many operational problems and negatively impacts the efficiency of wastewater treatment plants.
This is due to the fact that fat does not dissolve in water but forms hard-to-degrade clumps. The solution to this problem are the EST grease separators, which use a flotation process to separate culinary fats from sanitary wastewater.
The flotation process is a physical process, in which solid or liquid substances are separated. It involves introducing wastewater into a special tank, where heavier-than-water particles settle at the bottom, while lighter ones rise to the surface. Thanks to the properties of surface-active substances like fat, these particles rise to the surface and can be effectively separated from other wastewater components using EST grease separators. This improves the quality of wastewater treatment and reduces the load on the treatment plant.
To limit the concentration of suspended slurry in the wastewater entering the grease separator, a sedimentation tank should be used. The design of the sedimentation tank should take into account the local conditions, the type of wastewater being treated, flow rates, and the expected amount of suspended solids in the wastewater. The sedimentation tank can be used alone or in combination with the EST-H grease separator. Devices integrated into a single body save space and facilitate quick installation compared to separate sedimentation tank and separator systems.
Pre-treatment System
Selection Calculator
Dimensioning for rainwater and industrial wastewater according to EN 858-2
WaterFolder Platform
A dedicated separator calculator automatically selects a device with the right parameters. It is entirely based on the data you input into the tool.
Independent calculation saves time. You are immediately able to select optimal solutions without having to wait for feedback.
For more information on the selection of separators, see the video from our recent Projektowanie Na Śniadanie webinar (Breakfast with Design webinar).
CalculateFind out how to select pre-treatment systems in a few steps
Additional configuration elements
Odour neutralisation from the grease separator
To eliminate unpleasant odours from the separator, we recommend choosing an underlid filter. ENPeco neutralisers can also be used. They are available in two versions: one lasts up to 2 years, the other up to 4 years. Adding ENPeco to the filter increases its effectiveness.
Automatic notification of the quantity of organic oils collected
For this purpose, alarm installations equipped with oil layer sensors are used, which notify the need for cleaning the separator. This significantly reduces operational costs.
Construction and installation
The grease separator is installed close to restaurants to remove organic contaminants produced by such facilities. The separator prevents the accumulation of fat and sediments in the sewerage and prevents its clogging. Installing a grease separator in a restaurant improves the quality of the wastewater and protects the environment. For the restaurant owner, it also means financial savings, as it avoids penalties for pollution.
Grease separators have a watertight body made of concrete or reinforced concrete. Operational access inside the device is provided by hatches located on the cover, whose class should be selected based on the location of the device. When located in a drivable area (road, car park, manoeuvring area, etc.), heavy-duty class D400 hatches should be used.
Thanks to the high chemical resistance of the concrete, meeting the requirements of PN-EN 858-1:2005/A1:2007 and PN-EN 1825-1:2007 standards, the use of internal coatings is not necessary. An alarm installation with sediment and fat sensors can be connected. This lowers operating costs and increases environmental safety.
The separator should be fed by gravitational flow. To prevent fat accumulation, the inflow pipes to the grease separator should have a slope of at least 2%. The pumping station is placed below the purification devices. Do not introduce domestic, rainwater, or wastewaters containing petroleum products into the separator. The devices are located to ensure easy access to the equipment needed for removing contaminants and performing operational activities.
Operation
The operation of separators involves regular inspection and cleaning of the device. The responsibility for the inspection and service of the grease separator rests with the owner or manager of the facility. These duties arise from the Act of 14 December 2012 on Waste (Journal of Laws of 2018, item 2101) and the recommendations of the separator manufacturer. The owner or manager of the facility should regularly check the separator and remove contaminants from it. To determine the required frequency of cleaning, consult the manufacturer. Regular cleaning of the grease separator is essential for its proper operation. The frequency of cleaning the device depends on the amount of incoming wastewater and its nature (concentration of fat and easily settling suspended solids).
We recommend inspecting and removing contaminants every two weeks.
Separator inspection includes:
- visual assessment of the technical condition of the elements;
- checking the amount of accumulated fat and sediment layer (also in devices without a sediment part).
Current activities do not require descending into the tank interiors – they can be conducted from ground level. Removal of accumulated contaminants should be performed by a licensed company, equipped with the appropriate equipment for collection, transport, and disposal of contaminants and holding the necessary permits.