Filtration for water treatment.
KEIKEN supplies high-quality filtration media for a wide range of drinking water treatment applications, adapting to the technical requirements of each process and taking into account treatment objectives and operating conditions.
We also offer other water treatment solutions, such as polyelectrolyte preparation and dosing units, pressure filters and consumables, providing reliable solutions tailored to the needs of each project.
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Filtration performance starts with the right medium.
Not all water requires the same filtration. The choice of filtration medium depends on the inlet water quality, the contaminants to be removed and the process objectives.
On every project, our technical department analyses the specifications and parameters of the filtration medium: particle size distribution, uniformity coefficient, density or composition, and verifies that it meets the technical requirements defined by the client.
Our experience allows us to combine material quality and reliable supply on projects of different capacities.
From granular media to complete units.
Filtration media
Anthracite, zeolite, activated carbon, sand and gravel, garnet, pumice, calcite and manganese dioxide. Each material has its own UNE-EN standard, NSF certification and role within the filter bed.
- UNE-EN compliant and NSF certified
- Single-media, dual-media and multimedia beds
- Particle size grading for each project
- 1 m³ big bags and sacks
Polyelectrolyte units
Automatic polyelectrolyte preparation and dosing for the coagulation and flocculation stages. The right dose determines floc size and, with it, the performance of every downstream stage.
- Continuous automatic preparation
- Flow-proportional dosing
- Suitable for new and existing plants
- Commissioning and setpoint adjustment
Pressure filters
Pressure filters sized according to flow rate, the selected medium and the target quality. They are used where space is limited or where the process already operates under pressure.
- Sized for flow rate and filtration velocity
- Compatible with single-media and multimedia beds
- Underdrain and backwash distribution system
- Integration with the existing plant
Consumables
Cartridges, spare parts and replacement materials to keep the installation running. Replacing the filtration medium is part of a filter’s normal life, not a breakdown.
- Cartridges and filter elements
- Granular media replacement
- Nozzle and distribution spares
- Supply coordinated with plant shutdowns
We supply each medium and understand how it should perform.
KEIKEN provides reliable solutions that contribute to the operational efficiency and long-term performance of each installation, backed by its logistics experience to meet agreed supply deadlines.
01. Technical selection
Materials and equipment matched to the water, the process and the operating conditions, with attention to each project’s specifications.
02. Quality and traceability
Control of specifications and technical documentation, with regulatory compliance and certification according to the materials and equipment supplied.
03. International capability
Experience supplying large-scale installations, coordinating the technical and logistical requirements of international projects.
Filtration experience applied to real-world installations.
KEIKEN’s experience in water treatment enables us to understand the technical demands of different filtration systems and the importance of selecting the right components for each process.
We are a B Corp company
B Corp certification independently assesses a company’s environmental and social performance, transparency and legal accountability. For us, it is more than a label: it provides a framework for our technical decisions. Every plant we design is also assessed for its energy consumption, the water footprint it helps reduce and its impact where it is installed.