Raw Water

Since 1994, Dew has been a cornerstone in the field of water treatment, establishing strong relationships with our customers across the globe. Our commitment to excellence in process know-how has propelled us to become world leaders, offering an extensive array of both standard and tailor-made products and solutions.

With decades of experience, Dew has been instrumental in optimizing processes for Municipal and Industrial water treatment plants. Our approach revolves around understanding the entirety of our clients’ needs, ensuring that the treatment results meet expectations while jointly assuming responsibility for overall performance.

Comprehensive Solutions

Whether it’s the production of drinking water or the treatment of wastewater, Dew provides a comprehensive suite of solutions. From chemical coagulation and precipitation to biological treatment support, odour and corrosion control, disinfection, and sludge treatment, we tackle any challenge in collaboration with our clients.

Dew is deeply committed to advancing water treatment through intensive research. We operate our own research and development centres and collaborate with other business areas within the Dew Group to drive innovation further.

Coagulation and Flocculation

We are the number one supplier of coagulants and flocculants for water treatment across the world. Our expertise in coagulation and flocculation enables the efficient removal of suspended solids and turbidity from water. By utilizing a range of organic and inorganic coagulants and flocculants, we ensure optimal performance tailored to each client’s needs, thereby minimizing costs and maximizing return on investment. 

Organic and Inorganic coagulants and polymers are typically fed during the pretreatment process to remove nonsettleable solids, bacteria and viruses in the clarification and filtration processes. Polymer Activation Systems feed and control coagulant and flocculent addition. Coagulation involves the feeding of chemical coagulants into raw water to form microfloc particles. Flocculation describes the process of gently mixing the smaller particles so they contact each other to form larger particles called flocs.


Dew offers a variety of solutions for solids settling and separation, including inclined plate settlers, package settlers, plate packs, and tube settlers. Our Solids Contact Reactors and Clarifiers employ established processes to achieve efficient water treatment in a single step.


We understand the critical importance of disinfection in ensuring the safety of water. Dew provides reliable disinfection solutions, typically through the addition of chlorine, while ensuring compliance with regulations and avoiding taste and odor issues.

As the foremost supplier of coagulants and flocculants worldwide, Dew is dedicated to being your preferred partner for water treatment. Contact us today to discover how we can optimize your water treatment processes and drive performance excellence together.