High quality rinse water improves the finish, quality and durability of the product
Rinse water is used within a number of industries to secure a product of high quality and to keep the production facilities clean. Grundfos can provide both the knowledge and the equipment you need for designing a new rinse water system or modifying an existing system.
We have designed rinse water solutions within industries such as pharmaceuticals, biotechnics, electronics, glass, plastics, electroplating and in fields like breweries, hospitals, and laboratories.
Explore related technical references of rinse water solutions
DI rinse water for production of high-end audio products
The customer is developing and manufacturing high-end audio products. To support a growing demand of modern aluminum cabinets, the customer has implemented a new anodizing surface treatment line. For this purpose, demineralised rinse water of high purity is needed. The result is an exclusive surface look and top product quality.
Grundfos has supplied and installed a new water treatment solution for the production of demineralised water. Due to lack of space, a compact RO unit with a small footprint was selected. After the RO unit the water is further polished in a mixed-bed unit in order to reach the high water quality. The mixed-bed unit is for off-site regeneration, supporting the space issue as well as a concern for a complete chemical free solution.
Water treatment for glass washing machines
A large international flat glass manufacturer has installed an all-in-one, fully automated plug-and-play water treatment unit for different rinsing zones. In total the customer has 14 all-in-one units operating at different locations. With years of experience in water treatment for the glass industry, Grundfos have designed a comprehensive standard solution consisting of:
- Demineralised rinse water: Water is pre-treated in an ion exchange softening unit and then demineralised using chemical-free reverse osmosis. This process ensures no spots, dirt, or residue, greatly enhancing the adhesion of PVB film.
- Water saving: An efficient recycling process reduces freshwater demand. Rinse water is reused/recirculated through a dual filter combining gravel and activated carbon, removing cutting fluid, residue, and particles like glass chips and contaminants.
- Storage tank and booster pump: Make-up water and recycled water are collected in a storage tank. The treated water is then pumped to the rinsing zones by an integrated pump.
- Automation: The process is fully automated with sensors and triggers ensuring smooth operation. The unit is prepared for integration with other control systems.
Rinse water for surface treatment in the automotive industry
The customer is a leading supplier of sophisticated forming technology in body construction for premium cars. In their paint shop they use cathodic electrodeposition, also known as cathodic dip coating or cataphoretic painting, which is a high-quality, economical coating process for all submersible metal parts. For this process they require a large volume of rinse water of high quality.
After more than 20 years of operation it was necessary to repair some broken parts and exchange the control of the existing demineralisers, but based on a profitability analysis, the customer decided to replace the complete plant with new and modern technology offering many valuable benefits to the operation.
Technically speaking, the old demineralizers with co-current regeneration was replaced with UPCORE technology (UPflow COuntercurrent REgeration) because of the following features:
The system is self-cleaning, thus ensuring a constant, low pressure loss and trouble-free operation
The optimised utilisation of the regeneration chemicals leads to reduced operating costs.
Reduce and reuse the rinse water with water treatment technologies
Complex work processes, high production rates, and advanced products make heavy demands on the rinse water quality and amount.
Often, reuse or recirculation of the rinse water is a great economic advantage because the water consumption is reduced. Reuse is especially favorable when the rinse water becomes polluted during the process and thus requires wastewater treatment prior to discharge.
In most cases, reuse of water requires the following technologies:
How can we help you?
Whether you’re looking to buy a product or simply seeking advice from a Grundfos expert, we are more than happy to help you get the most out of your water treatment solution! Feel free to get in touch if you need support.