Oil Water Separators
Siltbuster has developed a range of mobile Oil Water Separators (OWS) suitable for capturing free phase hydrocarbons which both float and/or sink in the presence of water.
Thanks to their modular design – these easy to operate plug and play systems can either be deployed independently should the waters contain only Fats, Oils or Greases (FOGs), or, interconnected with other Siltbuster systems available in the range, form a wider multistage treatment solution should multiple contaminants be present and require processing.
Whether it be the recovery of petroleum-based hydrocarbons which require skimming from a mechanical plant leak, the settlement and capture of creosote based compounds within water from industrial applications or the active floatation of historical oils encountered upon remediation sites – Siltbuster has the experience and equipment to swiftly deploy the best solution for you to achieve your target discharge limit.
Coalescing Media Oil Water Separators
Siltbuster CM400 OWS
The Siltbuster CM400 Oil Water Separator (OWS) utilises coalescing media technology to provide effective removal of free phase hydrocarbons at high flow rates within a small footprint. It utilises an oleophilic media technology which allows operation at higher flow rate for LNAPL separation. This coalescing media works by providing a surface for globules as small as 20 microns to attach to and combine together to form larger globules. These larger particles then overcome the surface adhesion of water and float rapidly to the surface. As part of a modular system, it may be operated in conjunction with a Lamella Settlement Unit should the feed also contain solids in suspension.
- No power requirements and easy to operate
- Handling flows of 40m³/hr depending on application
- Designed to minimise the risk of clogging
- Proven ability to meet the requirements for both EPA Method 413.2 and European Standard EN858-1
- Hydrocarbon: LNAPL
- View the Siltbuster OWS range profile drawings
Typical Applications: Contaminated Tanks, Temporary OWS Replacement, Oil Water Only
Lamella Plate (inclined plate) Oil Water Separators
These integrated units simultaneously separate Light Non Aqueous Phase Liquids (LNAPLs) and Dense Non Aqueous Phase Liquids (DNAPLs) through the provision of a large effective area within, owed to a series of installed inclined lamella plates. The LNAPLs (with a specific gravity <1.0) rise up and through the water column where an adjustable skimming bar recovers the free phase floating product and safely stores it within a dedicated chamber. The denser DNAPLs (with a specific gravity >1.0) exhibit settleable characteristics and cascade through the lamella plates where they eventually collect and are held within the unit’s sludge storage area.
This dual capability not only makes inclined oil water separators perfect for recovering both floating and sinking hydrocarbons, but also for capturing suspended matter which also exhibits settling properties within water, both within a single solution.
HB50-OWS
Simultaneously separates LNAPLs of 60 microns and larger by flotation and removes settleable solids and dense non-aqueous phase liquids (DNAPLs) which sink and are collected in the base before being drawn off. It suits cases where higher suspended solids/DNAPL are envisaged and has a large sludge storage volume and the option for continuous on-line removal of solids.
- No power requirements and easy to operate
- Handling flows of 20m³/hr depending on application
- Designed in accordance to API 421
- Will also cope with a high suspended solids/grit load
- Twin hopper to reduce the frequency of sludge removal required
- Integral storage tank for secure temporary storage of the recovered hydrocarbons
- Hydrocarbon: LNAPL and DNAPL
- HB20-OWS also available
- View the Siltbuster OWS range profile drawings
Typical Applications: Remediation of Gas and Oil Works, Continuous Pumping
FB50-OWS
The flat bottomed FB50-OWS model is typically employed where the suspended solids/DNAPL concentrations are low and where equipment height restrictions might apply. It simultaneously separates LNAPLs of 60 microns and larger by flotation and removes settleable solids and dense non-aqueous phase liquids (DNAPLs) which sink and are collected in the base before being drawn off.
- No power requirements and easy to operate
- Handling flows of 20m³/hr depending on application (some site conditions allow up to 50m³/hr)
- Designed in accordance to API 421
- Will also cope with a high suspended solids/grit load
- Integral storage tank for secure temporary storage of the recovered hydrocarbons
- Hydrocarbon: LNAPL and DNAPL
- View the Siltbuster OWS range profile drawings
Typical Applications: Hydrocarbons in Excavations, On-site Recovery, Oily Water, Equipment Cleaning, Remediation, Intermittent Pumping
Dissolved Air Flotation (DAF)
The Siltbuster range of Dissolved Air Flotation units are the UK’s largest and most varied fleet. These mobile, readily deployable DAF units are becoming increasingly popular for water treatment on remediation and construction projects. The highly effective DAF process efficiently ‘floats’ stubborn hydrocarbons with a near neutral buoyancy off to the water’s surface – where a mechanical scraper drive recovers the product ready for disposal. The extensive Siltbuster DAF range offers hydrocarbon and solids separation at flow rates up to 100m3/hr and is highly effective on both construction and remediation sites.
Using established solids/liquid separation technology, the DAF units generate ‘white-water’ by dissolving air under pressure and then releasing the pressure to form micro fine air bubbles. The target particulates attach to the air bubbles causing them to rise to the surface, where they thicken by natural de-watering and are scraped off. The Siltbuster range of chemical dosing systems can be combined with these units to offer enhanced removal when you need to meet tight consents or for those difficult to treat applications.
- No requirement for compressed air and only requires power on-site
- Handling flows up to 100m³/hr depending on size of DAF and application
- Size range from DAF5 to DAF100
- Integrated design for hydrocarbon and solids separation
- Easy to operate and maintain
- Small footprint with large capacity
Typical Oil/Water Applications: Clean-up of Hydrocarbon Spills, Remediation Projects, Gas Works, Chemical Factories, Timber Preserving Yards, Petrol Stations, Primary Removal before GAC filter.
For more information on our DAFs.