Harena - Weighted adsorbent granular.
Harena is an award winning, fine grade, patent coated mineral with a granular size of approximately 0.8mm, capable of bonding all forms of hydrocarbon including fuels, oils and modified synthetics.
The fine grade of Harena gives the adsorbent a very large surface area which aids the bonding process of hydrocarbons and ensuring a quick and efficient capture of contamination.
Harena has a number of features which make it a suitable choice for a wide range uses from spillage control to hydrophobic sealing. These are as follows;
Packaging options...
Harena is available in a number of formats. These are as follows;
1. 20kg polypropylene valve sacks
2. Pallet of 50 x 20kg polypropylene valve sacks
3. 6kg Harena refillable applicator
4. 1000kg Sealed bulk bag pallet
Adsorption (bonding) rates
Harena applications
Harena is a versatile product with a number of applications. These include...
Harena is an award winning, fine grade, patent coated mineral with a granular size of approximately 0.8mm, capable of bonding all forms of hydrocarbon including fuels, oils and modified synthetics.
The fine grade of Harena gives the adsorbent a very large surface area which aids the bonding process of hydrocarbons and ensuring a quick and efficient capture of contamination.
Harena has a number of features which make it a suitable choice for a wide range uses from spillage control to hydrophobic sealing. These are as follows;
- Effective on all forms of hydrocarbon - from low viscosity silicon oils to high viscosity bitumen and crudes.
- Full hydrocarbon capture – Harena is able to successfully bond hydrocarbons whether in free phase, emulsified or vapour form.
- Non-leaching capability – Harena mechanically bonds the hydrocarbon molecule to itself preventing leaching either at the spill source or later at disposal.
- Fully hydrophobic – Harena will actively repel water meaning only the hydrocarbon contaminate will be removed, thereby reducing disposal cost.
- Fire retardant – Harena is able to capture the vapour element of high volatile fuels which significantly reduces the risk of combustion.
- Heavyweight – Designing as a weighty product means Harena can be applied to exactly where it is required and needed.
- Indefinite shelf life – Harena is not degraded by moisture or wet environmental conditions.
- Disposal methods – Harena has been WAC tested and classified as environment friendly non-reactive waste BS EN 12457
Packaging options...
Harena is available in a number of formats. These are as follows;
1. 20kg polypropylene valve sacks
2. Pallet of 50 x 20kg polypropylene valve sacks
3. 6kg Harena refillable applicator
4. 1000kg Sealed bulk bag pallet
Adsorption (bonding) rates
- A kilo of Harena will bond approximately 0.4-0.5litres of neat hydrocarbon.
- A 20kg bag of Harena will bond approximately 8-10litres of neat hydrocarbon.
- A 6kg Harena applicator will bond approximately 2.4-3litres of neat hydrocarbon.
- A pallet of Harena will bond 400-500litres of neat hydrocarbon.
Harena applications
Harena is a versatile product with a number of applications. These include...
1. Contamination prevention
Harena can be used as a pollution control measure to prevent ground contamination. Harena can be used as a successful bund for a number of scenarios when it is critical to prevent contaminating hydrocarbons from gaining access to surrounding environments, such as water courses and tables (see case studies).
The simple column test below highlights the benefits of utilizing Harena to prevent contamination progressing through to a calcium carbonate sub layer such as is typically found in the South-East of England.
In the before and after trial photos below we have used ordinary, similar fine grade sand as a means to highlight the difference achieved. We added 500ml of dark, viscous garage waste oil into a 150mm diameter column and monitored for a 24hr period.
Harena can be used as a pollution control measure to prevent ground contamination. Harena can be used as a successful bund for a number of scenarios when it is critical to prevent contaminating hydrocarbons from gaining access to surrounding environments, such as water courses and tables (see case studies).
The simple column test below highlights the benefits of utilizing Harena to prevent contamination progressing through to a calcium carbonate sub layer such as is typically found in the South-East of England.
In the before and after trial photos below we have used ordinary, similar fine grade sand as a means to highlight the difference achieved. We added 500ml of dark, viscous garage waste oil into a 150mm diameter column and monitored for a 24hr period.
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Image left: 500ml of garage waste oil added to both columns (Harena on RHS).
Column monitored over a 24hr period. Image right: Oil contained with Harena. Excess sits on the surface. Oil has migrated through standard sand. |
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The Harena in the right hand column has fully captured the garage waste oil and prevented it from migrating through to the calcium carbonate. The left column highlights what would have happened without the Harena bund fail safe in place.
2. Pipework and cable bunding.
The photo’s below show the same benefit when used as a protective bund around pipe-work or cabling. Contaminating garage waste oil migrates along a length of Harena, rather than penetrating through and contaminating the chalk layer. This feature creates a fail-safe where regular pipe-work monitoring is difficult. In addition, a Harena pipe-work and cabling bund will aid further protection by behaving as barrier cushion against flints, stones and other sharp objects found in the ground.
The photo’s below show the same benefit when used as a protective bund around pipe-work or cabling. Contaminating garage waste oil migrates along a length of Harena, rather than penetrating through and contaminating the chalk layer. This feature creates a fail-safe where regular pipe-work monitoring is difficult. In addition, a Harena pipe-work and cabling bund will aid further protection by behaving as barrier cushion against flints, stones and other sharp objects found in the ground.
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3. Spillage Control
The wide ranging features of Harena make it the perfect solution for spillage control. Harena will bond from a variety of ground surfaces including semi-porous surfaces such as concrete and asphalt, providing a complete clean without residue or staining. (See photos below)
Harena is effective at bonding all hydrocarbon based liquid compounds and be utilised on both thick viscosity heavy oils such as bitumen and crude, and light ultra thin viscosity oils such as silicon oils and fuels.
Harena is a fast response adsorption media capable of removing spillage quickly and effectively, thereby reducing the impact of contamination on the surrounding environment as quickly as possible.
The wide ranging features of Harena make it the perfect solution for spillage control. Harena will bond from a variety of ground surfaces including semi-porous surfaces such as concrete and asphalt, providing a complete clean without residue or staining. (See photos below)
Harena is effective at bonding all hydrocarbon based liquid compounds and be utilised on both thick viscosity heavy oils such as bitumen and crude, and light ultra thin viscosity oils such as silicon oils and fuels.
Harena is a fast response adsorption media capable of removing spillage quickly and effectively, thereby reducing the impact of contamination on the surrounding environment as quickly as possible.
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4. Highly flammable hydrocarbons
When used to clean up volatile hydrocarbons, such as petrol and diesel. Harena is able to add some significant safety factors. Harena is capable of bonding both the liquid and vapour elements of the hydrocarbon molecule, thereby creating a significantly reduced spark and fire risk than with conventional absorbent options. This unique feature means, Harena is able to improve health and safety for a number of spill response uses such as road traffic collisions and petroleum forecourt spillage, among others.
The video below highlights the ability of Harena to completely prevent the ignition of the bonded petrol creating a safe environment. Use of sand or regular absorbent materials to absorb volatile hydrocarbons will not prevent a potential combustible situation. For the test we have shown the difference between Harena and sand, which is commonly used on a forecourt for spill control. We have used 100ml of petroleum in each ceramic tray.
The fast bonding action and ability to prevent secondary fire risk, make the Harena adsorbent the most effect granular spill control product where fire risk control and health and safety controls are of paramount importance.
When used to clean up volatile hydrocarbons, such as petrol and diesel. Harena is able to add some significant safety factors. Harena is capable of bonding both the liquid and vapour elements of the hydrocarbon molecule, thereby creating a significantly reduced spark and fire risk than with conventional absorbent options. This unique feature means, Harena is able to improve health and safety for a number of spill response uses such as road traffic collisions and petroleum forecourt spillage, among others.
The video below highlights the ability of Harena to completely prevent the ignition of the bonded petrol creating a safe environment. Use of sand or regular absorbent materials to absorb volatile hydrocarbons will not prevent a potential combustible situation. For the test we have shown the difference between Harena and sand, which is commonly used on a forecourt for spill control. We have used 100ml of petroleum in each ceramic tray.
The fast bonding action and ability to prevent secondary fire risk, make the Harena adsorbent the most effect granular spill control product where fire risk control and health and safety controls are of paramount importance.
5. Wet and water environments
Harena is able to benefit when contaminating hydrocarbons are found in wet areas and surfaces.
Harena is able to remain fully hydrophobic whilst purely bonding the contaminating hydrocarbon. Bonded contaminate will remain non-leaching even whilst submerged in water. (see images below)
Harena is able to benefit when contaminating hydrocarbons are found in wet areas and surfaces.
Harena is able to remain fully hydrophobic whilst purely bonding the contaminating hydrocarbon. Bonded contaminate will remain non-leaching even whilst submerged in water. (see images below)
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As a weighted granular, Harena will not float on water for a prolonged time period. For lightweight, floating solutions, please visit HarenaLux - lightweight adsorbent and/or Cushions, socks and spill kits product pages.
6. Ground remediation
Harena is a credible solution ground remediation where hydrocarbon contamination is a factor. Removing fuels and oils trapped within sediments is often time consuming and costly to remediate, especially when sediments require off site treatment. This is not only expensive but also adds significantly to the carbon footprint and environmental impact of the remediation project.
Harena can be mixed within these contaminated sediments to capture and isolate the contamination from the surrounding environment. Due to the non-leaching feature of Harena, these captured hydrocarbons can be safely remediated on site without the need for off-site treatment.
(Below - Trapped light crude within shoreline sediment on St Mary's Island, Scilly Isles)
Harena is a credible solution ground remediation where hydrocarbon contamination is a factor. Removing fuels and oils trapped within sediments is often time consuming and costly to remediate, especially when sediments require off site treatment. This is not only expensive but also adds significantly to the carbon footprint and environmental impact of the remediation project.
Harena can be mixed within these contaminated sediments to capture and isolate the contamination from the surrounding environment. Due to the non-leaching feature of Harena, these captured hydrocarbons can be safely remediated on site without the need for off-site treatment.
(Below - Trapped light crude within shoreline sediment on St Mary's Island, Scilly Isles)
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7. Hydrophobic Sealing
The fine density size and hydrophobic feature means Harena is highly effective at creating a watertight seal. Harena is being utilized because of this feature to seal gas wells on a number of landfill sites around the UK. Harena is to prevent water and air penetration around a gas well seal to significantly increase the seal longevity without degradation whilst simultaneously allowing for increased gas volume and quality draw off. The diagram below shows the seal design.
The fine density size and hydrophobic feature means Harena is highly effective at creating a watertight seal. Harena is being utilized because of this feature to seal gas wells on a number of landfill sites around the UK. Harena is to prevent water and air penetration around a gas well seal to significantly increase the seal longevity without degradation whilst simultaneously allowing for increased gas volume and quality draw off. The diagram below shows the seal design.
Below: Comparison between a standard seal (left) and a Harena improved seal (right) after a 6month time period. The standard seal has already failed allowing air ingress into the well. The Harena improved seal is still as effect as the day it was installed.
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