Advanced solutions for Desalination, Water Reuse, and Energy Efficiency. With in-house R&D developments.

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Water and Desalination

In a world facing increasing challenges regarding water access, KEIKEN Engineering stands as a benchmark in technologically advanced and compact solutions for desalination and water treatment, covering all human needs, whether domestic, industrial, or for irrigation...

Furthermore, we offer support and key supplies to international companies in the water sector to ensure the success of their projects.

Filter Media / Anthracite

Anthracite is a very hard mineral coal characterized by its high carbon content, which can reach up to 95%.

Filter Media / Zeolite

Zeolite is a high efficiency filter media, which reduces the OPEX of a traditional filtration system by up to 50%.

Filter Media / Pumice stone

Our pumice stone complies with the UNE-EN 12906:2013 standard for the treatment of water for human consumption. Its low specific gravity, high porosity, and excellent filtration properties make pumice a good alternative to anthracite for SWRO and desalination applications.

Filter Media / Activated Carbon

Activated carbon is an absorbent with high carbon content and high internal porosity.

Filter Media / Garnet

Its chemical properties, hardness and durability make Garnet an ideal filter media.

Filter Media / Manganese Dioxide

AquaMandix is mainly constituted by Manganese Dioxide and is characterized by a high catalytic activity.

Filter Media / Sand

Sand is one of the most commonly used materials as a filter media for water filtration.

Filter Media / Gravel

Gravel is used as a filter media support, because it is an economical material and does not give any characteristic to the water.

Filter Media / Limestone

Our calcite with a calcium carbonate content higher than 98% is a specific product for water remineralization.

Desalination plant

We offer solutions for the treatment of seawater, brackish water, and/or water requiring purification through compact containerized plants. With Plug & Play technology and automated systems.

Treatment plant

We find the best treatment solution for wastewater with different parameters and flow rates. The goal is to give a new use to the treated water, supporting our clients in reducing their water footprint in commitment to the environment and sustainability.

Compact plants and Pilot

Water Treatment Solutions

Cartridge Filters

MBBR Carrier Media

Filter Nozzles

Services

Energy Efficiency

Specialists in energy transition. Comprehensive projects: free initial study, solar panel installation, legalization of installations for individuals and businesses.

CLEAN ENERGY AND SAVINGS

Produce your own solar energy and save on your bill.

100% clean and inexhaustible energy.

Savers Electricity Consumption

LED and Solar lighting

Domotics and Consumer Management

Services

KEIKEN Engineering

We are part of a group of companies dedicated to different fields, all of them pioneers in their sector: cosmetic companies, biotechnology, fuel energy saving and large photovoltaic projects.

For this reason KEIKEN ENGINEERING is always innovating and applying new technologies that is reflected in their customers, improving their production and saving on unnecessary expenses.

News

26 de December de 2025

How Can High Temperature Industries Reduce Energy Loss Without Output

In heavy industries like steel, cement, and chemicals, high temperatures are everything. Furnaces, kilns, and reactors regularly hit over 1,000°C. The problem is, a lot of that heat ...

5 de December de 2025

Pumice Stone for Removal of Hardness and Heavy Metals in Water

Maybe your glasses get white marks after washing. Maybe your kettle has a hard crust you can’t scrub off. Perhaps the water tastes a little strange, with a metallic aftertaste, and ...

26 de November de 2025

Top 5 Reasons to Consider a Containerized Desalination Plant in 2026

You know how water is something we expect — flip a tap, and there it is. Most of us don’t think twice. But as the world changes—climate stress, growing populations, shrinking ...

ISO 9001:2015

For Keiken Engineering, ISO 9001:2015 is a milestone in its quest for continuous improvement and its dedication to customers, as it brings substantial improvement in all areas of the company, allowing all processes to be controlled in detail. 

It also helps to properly manage the entire organization to avoid unnecessary expenses, budget deviations and costly errors. This saves time in production, which translates into improved deadlines and prices offered in our projects.

ISO 9001

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