As experts in water and waste water cleansing technology, the definition of the term process water is very clear to all of us at ALMAWATECH. The term covers all water qualities and recycling waters necessary for industrial and commercial production processes. These include, amongst others, well water, service water, cooling water, partially demineralised water (soft water), demineralised water and ultrapure water.
Industrial process water treatment is also segmented into washing, cooling and rinsing cycles. In addition, special process water requirements for water and waste water treatment may be necessary, depending on the field (i.e. food or non-food segment).
Due to the targeted use of modern water and waste water technology, it is crucial to continue to meet the legal requirements for water quality following waste water treatment so that process water can be introduced into the waste water system.
Water and waste water treatment for process water: Our processes
Thanks to the appropriate pre-treatments used by us, reverse osmosis has become the standard method in process water treatment. Pre-treated water qualities are divided into concentrate flow and permeate flow. As a consequence, the salts and other dissolved ingredients which are to be removed from the water remain in the concentrate flow.
As experts in water and waste water treatment technology, ALMAWATECH employees look back on more than 20 years of experience in the planning, dimensioning, design and production of reverse osmosis systems. We customise our system solutions and services, using practically all membrane and module qualities for process water treatment currently available on the market, and will also incorporate those that become available in the future. In order to ensure the highest performance, we rely exclusively on components from German brand manufacturers.
We ensure your reverse osmosis system is dimensioned correctly by using state-of-the-art calculation programmes, which are able to precisely determine the dimensioning required based on the existing water quality. Reverse osmosis systems designed and manufactured by us offer a permanent output of 5-50 m3/h. Of course, in order to ensure efficiency and safety, higher outputs are implemented by using a multi-channel configuration.
For decades, ionic and anionic synthetic resins containing calcium have been proven in the field of process water treatment. In this process, the resins are introduced into filter towers according to the required flow rate levels, through which the process water requiring treatment flows. Depending on the size of the plant, the charged resins can either be regenerated within the plant (in situ) or be sent for regeneration by means of an exchangeable filter cartridge system. Naturally, as experts in the field of process water treatment, we offer both solutions and dimension the plants to suit your requirements. ALMAWATECH designs and produces plants with a throughput capacity of 2-50 m3/h.
Ultrafiltration and Microfiltration
In the field of industrial process water treatment, ultrafiltration and microfiltration are excellent ways of removing undissolved particulate and emulsified substances from water cycles and also degreasing tanks, for example. Where biology-related solutions or cooling towers are used in the treatment process, ultrafiltration is used as a pre-treatment for reverse osmosis. The selection and dimensioning of the filter modules, filter pressure and the speed of the module flow rate for optimal process water treatment are all crucial in order for this process to work properly. When designing ultrafiltration and microfiltration systems, ALMAWATECH leaves nothing to chance. We use the expertise of our senior engineers and combine various design tools to achieve optimal dimensioning. The size of the plants range from small compact systems of 100 l/h for tank maintenance to 50 m3/h for the channels used for pre-treatment plants for reverse osmosis. Thus, the various filtration processes and reverse osmosis are optimally interlinked and guarantee water qualities that meet legal specifications.
Disinfection and Oxidation
Due to contact with the atmosphere as well as the product itself, process water is prone to contamination and, accordingly, must be efficiently sterilized and protected against re-contamination. When a chemical approach is used in process water treatment, sterilization is achieved by means of using biocides or chlorination in the treatment process. However, these methods cannot be applied in every environment and for every process. Ozonisation is the chemical-free alternative, consisting of the use of an ozone generator. Another solution often used in the field of process water treatment is an UV disinfection system. Here, UV emitters and UV light are introduced into the water flow, thus reducing germ contamination. Chlorine dioxide systems are another common solution: Liquid chemicals are used to produce chlorine dioxide, a disinfectant, at low cost and relatively safely on site.
As experts in the field of water and waste water cleansing technology, following an exact analysis of the production process, we plan and design custom-made disinfection processes, coordinating them with our customers. This allows us to ensure legal compliance and to integrate our customers’ economic considerations into the planning process.
Of course, our experts at ALMAWATECH also offer our customers complete system solutions in the field of process water, including the complete integration of water and waste water. Our system solutions for process water optimize existing cycles and seal them as best possible, reduce water consumption and also recover existing energy wherever possible. The separate partial flows are handled according to the existing demand by using different methods of process water and waste water technology, enabling an appropriate combination of different processes.