Experts in Dissolved Air Flotation

KWI Group is the global leader in delivering Dissolved Air Flotation (DAF) for water and wastewater treatment systems for industrial and municipal applications.

With more than 4,700 installations in 77 countries, KWI excels in Industrial Waste Water Treatment, Biological Treatment, Process and Potable Water applications.

KWI Dissolved Air Floatation (DAF) solutions are based on proven process designs with exclusive, patented equipment and technology to meet our customers’ needs. The KWI brand name is synonymous with quality & efficiency and we strive for continuous improvement. Dissolved air flotation is very widely used in treating the industrial wastewater effluents from oil refineries, petrochemical and chemical plants, natural gas processing plants, paper mills, food processing (including those where a high proportion of oils, fats and greases arepresent), biological sludge thickening, potable or process water production, general water treatment and similar industrial facilities. Key market applications and case studies can be found at our expertise page

KWI works with long time experts in design and production departments. We focus on stainless steel production at a high quality level. In our Manufacturing facilities and product engineering group in Klagenfurt, Austria, all fabrication and  production systems are performed strictly in accordance with ISO 9001 and ISO 14001 quality standards. Intimate cooperation between R & D, product engineering and fabrication ensures continuous improvements in product function and cost.

Latest News

September 19, 2019

KWI's 70th anniversary

KWI celebrated the 70th anniversary all over the world. Last stop was in Europe, where the great history of the KWI DAF production began. Gianluigi Bianco, Sales Director of KWI, reviewed the history and great development of the company. In the last years KWI became the company with the most complete range of Dissolved Air Flotation units worldwide. He emphasized the high level of quality and the many years of experience of the employees at the production site in Klagenfurt, Austria. Ov…

September 19, 2019

4th Sustainable Water Management Conference in Belgrade

The wastewater sector in major parts of the Danube region requires appropriate treatment technologies in order to ensure a proper life standard and reach EU regulations. At the conference our KWI representatives Nebojsa Lackovic and Zvonko Kren explained why the well-proven dissolved air flotation (DAF) technology is one of the leading approaches in water and wastewater treatment: DAF clarifies more water than settling, given the same area DAF operates with ¼ of the retention time compa…

September 19, 2019

Global Water Summit London

The Global Water Summit is the flagship water industry event of the year. High-level executives from industry, municipalities and international water companies meet together in order to develop their business, understand how their core markets are developing, stay ahead of the competition and forge new business contacts. Our president Mr. Hilling Chang (chairman, SafBon Shanghai) had a speech about desalination and was asked to share his view about Asian market during the closing plenary…

September 19, 2019

Why DAF is used in Mega Seawater Desalination Pretreatment

Starting from early 21st century, DAF technology has been used in Mega Seawater Desalination Pretreatment to remove suspended solid and algae. A Harmful Algae Blooms (HABs) happened in 2008 around Middle East Area, which forced most of SWRO (Seawater Reverse Osmosis) plants to shutdown. Since then, DAF is the standard pretreatment process in the newly developed Mega SWRO plant in this region. Why is DAF used? The main function of DAF as a pretreatment system is the separation of algae a…

Our Mission

The mission of KWI Inter­national is to fullfil the expectations of its business associates (customers, staff, suppliers, company owners, society and environment) to the best of its ability and is indicative of KWI’s success to date. The amongst the key management objectives are to strive for optimum ful­fillment of the require­ments and expectations of our customers as well as stringent safety and health protection of KWI personnel.

Our worldwide network

Customer service is our priority, so closeness to the customer is particularly important to us. In addition to our branches in France and UK as well as our sister company in Florida, we can proudly rely on an internationally established network of partners.The KWI group is at your service to select the best solution, both in terms of performances and cost effectiveness, for your water treatment scenario. Get in contact with our headquarter in Austria or our local branches to receive our consultancy.

Member of the SafBon Group