Supporting the textile industry to allow water and resources to be reused


Textile production is a water-intensive industry

Water is used to clean raw materials and as part of the dyeing process

Production also relies on many different substances, such as synthetic dyes, solvents, resins, caustic soda and bleach. These substances can end up in streams of used water and are difficult to treat.

Galeb d.d. is a textile company in Omiš, Croatia. They are building a water treatment plant as part of their factory development. Their goal is to achieve high standards of water management using a circular water economy approach.

Project Ô has developed the PHOTO.CAT unit to become part of their new water treatment plant

It will remove dyes from used water and it can help increase the amount of water that can be reused in the factory

By using PHOTO.CAT and nanofiltration technologies, textile producers have control over the levels of sodium sulphate in the water that is reused in the dyeing process.

Project Ô has developed a Circular Economy Platform (CEP) to expand business opportunities

CEP includes a tech-selection box

This allows businesses to evaluate which of the Project Ô technology modules has the greatest economic and operational sustainability benefits for their water treatment needs. It also gives businesses the ability to assess if any local collaboration opportunities are available.


Omiš is a small Croatian town about 26 kilometres south-east of Split

This coastal town has a thriving tourist industry and has been given a Natura 2000 designation due to its environmental importance

Galeb are an established textile company who is building a new factory in Omiš with its own water treatment plant. One aim of the new water treatment plant is to allow Galeb to treat and reuse their own used water. This would reduce the need for fresh input water and allow recovery of dyeing salts for reuse, as well as being more cost-effective and a sustainable use of resources.

It will improve on the following more commonly
applied linear economy approach

Project Ô has developed PHOTO.CAT technology. It is designed to remove these specialist industrial substances, including dyes. Treatment partially removes dissolved salt from the used water, which makes it ideal for immediate reuse in the dyeing process. As dyeing is one of the most water-intensive steps, this has a huge impact on reducing resource use as well as preventing the release of salty water into the environment. CEP will also provide possible opportunities for local collaborations and new business.
By treating their own specialist used water, Galeb can reduce their costs, energy and resource consumption, and protect their local environment.

Circular Water Economy

Using Project Ô technologies, water use in textile production can apply a circular economy approach

Project Ô technologies have helped close the loop on water use in textile production in Omiš in Croatia

And this leads to other benefits too...
  • Safeguarding the local environment through specialised water treatments and improving resource management helping to maintain the Natura 2000 designation
  • Increasing local water reuse and creating huge savings in textile production by maximising resource use without disrupting the local water system
  • Closing the loop, requires new infrastructure and land uses which can lead to an increase in local jobs in the environmental sector 
  • Increasing health and safety measures through strict regulations, quality standards and management plans to comply with national and EU environmental objectives
  • Using a sustainable approach to water use and reuse increases resilience to changes in the climate and economy


PHOTO.CAT is a water filtration unit that can treat chemicals used in textile production

It aids water reuse as the process does not affect dissolved salts

The combination with nanofiltration technology allows dye baths to be supplied with reused water that still contains the salts and temperature needed for dyeing. Reuse lowers operating costs and reduces the environmental impact. The benefits of the PHOTO.CAT unit include:

  • A modular design allowing units to be configured to suit operating needs
  • Separate used water streams can be treated independently and simultaneously
  • It can operate continuously, driven by solar power with a low-power LED back-up
  • It can be used off the grid or in remote locations
  • The treated water is suitable for cost-effective reuse, while optimising use of resources such as salts and heat energy

CEP is designed to allow businesses to participate in a circular water economy

The purpose of CEP is to allow for the local trade of water and by-products between different water users involved in water treatment activities
CEP allows key players involved in water treatment activities to interact
by sharing requests, offers, treatment technologies and logistics