Sand & Gravel Media
Our services
Filtration Systems
Industrial filtration units that remove turbidity, chlorine, iron and suspended solids and protect the treatment stages that follow.
Overview
Overview
Filtration is the first line of defence in any water treatment system. Whether the water goes to direct use, to an RO plant or to a softener, removing turbidity, suspended solids, chlorine and iron early protects everything downstream and extends its life.
Aqua System designs, supplies and installs industrial filtration units of every type and supplies their replacement media — graded sand and gravel, activated carbon and Birm — together with cartridge filters of all types.
Choosing the right filter
Sand and multimedia filters remove turbidity and suspended solids. Activated carbon removes free chlorine, odour and part of the organics, and is essential ahead of RO membranes. Birm is used to take iron and manganese out of well water. Cartridge filters provide fine filtration as the final protective stage. The selection and number of stages follow from the water analysis and the required flow.
Backwashing and operation
Media filters run in filtration cycles followed by a backwash that restores the bed. We set the backwash cycles manually or automatically, depending on the design, monitor the media and recommend replacement at the end of its service life.
Problems we solve
Challenges this service addresses
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Turbidity and suspended solids
Cloudy water that blocks pipes and nozzles and contaminates product.
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Chlorine attacking membranes and resin
Free chlorine damages RO membranes and shortens resin life.
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Iron and manganese in well water
Brown stains and deposits in tanks and equipment and a metallic taste.
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Premature equipment wear
Without pre-filtration, downstream stages carry more load than they were built for.
System & treatment method
How the treatment works
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Sand / multimedia filter
Graded layers of gravel and sand remove turbidity and suspended solids.
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Activated carbon filter
Removes free chlorine, odour and organics.
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Birm filter
Oxidises and retains iron and manganese within the bed.
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Cartridge filter
Fine filtration as the final protective stage.
Applications
Where this solution is used
- Pre-treatment for reverse osmosis plants
- Pre-treatment for softeners and ion-exchange units
- Well water with iron and manganese
- Industrial process water
- Buildings, hotels and hospitals
Advantages
Why choose this solution with Aqua System
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Selection based on analysis
Media type and number of stages follow your actual water quality.
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Replacement media from one supplier
We supply sand, carbon, Birm and cartridges whenever they are due.
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Manual or automatic operation
Manual valves or automatic control heads for the backwash cycles.
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Protects your investment
Good filtration means longer life for membranes, resin and pumps.
Components
Main system components
- Filter vessels
- Sized for the pressure and media volume.
- Filter media
- Graded sand and gravel, activated carbon or Birm per stage.
- Valves or control heads
- Control filtration and backwash.
- Pressure gauges
- Track the pressure drop and time the backwash.
- Cartridge filters and housings
- Final fine filtration.
Engineering & implementation
How we deliver this service
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01
Site survey & water analysis
We visit the site, review the water source, its analysis and end use, and agree with your team on the problem and the target.
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02
Engineering design & selection
We define the treatment stages, capacity and equipment and submit a clear technical and commercial offer.
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03
Supply
We supply the equipment, media and chemicals specified in the design and check them before they ship to site.
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04
Installation & commissioning
We install the unit, connect its piping and control panel, then start it up and tune it until it delivers the target water quality.
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05
Handover & training
We hand the plant over to your operators with hands-on guidance on daily operation and periodic washing.
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06
Follow-up & technical support
We follow the plant's performance, supply consumables and spare parts and provide technical support when needed.
Related products
Consumables and chemicals for this service
- Activated Carbon
- Birm Media
- Cartridge Filters
Technical guides
Articles about this service
Technical Guides
Types of Industrial Water Filters and How to Choose the Right Filtration System
Sand, multimedia, activated carbon and cartridge filters: what each type is used for, the role of filter media and backwashing, and how to choose the right filtration system for your facility.
Technical Guides
How to Choose the Right Reverse Osmosis (RO) System for Your Facility
Water analysis, target water quality, pre-treatment, capacity, recovery rate, membranes and maintenance: the factors that decide which reverse osmosis system fits your plant or facility.
FAQ
Frequently asked questions
How often should a sand filter be backwashed?
It depends on water quality and load. Backwash is usually triggered by a rise in pressure drop across the filter or by a schedule we set during commissioning.
When does carbon media need replacing?
When it no longer removes chlorine or odour effectively. We recommend checking free chlorine after the filter regularly.
Is Birm suitable for every well water?
Birm works within a specific pH and dissolved-oxygen range, so we review the water analysis before recommending it.
Do you supply media without installation?
Yes. We supply filter media and cartridges for existing plants and can carry out the change-out on request.
Talk to an engineer
Need a water treatment solution that fits your facility?
Send your water analysis or describe your current system, and our technical team will come back with a clear, suitable proposal.