Dissolved Air Flotation Design: Remove 90%+ Oils & Solids

Dissolved Air Flotation Design: Remove Oils Solids Greases From Wastewater Via Pressurized Air Bubble Process

Dissolved air flotation replaces secondary settling tanks, offering reduced footprint and lower compliance costs for wastewater deep treatment.

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Advantages of Dissolved Air Flotation Design

Removes Contaminants Effectively

Removes more than 85 to 90% of suspended solids and 90 to 95% of oil or fat from treated effluent (wastewater). This exceeds all other methods for removing these contaminants available today.

Assured Long-term Reliability

Provides customers with long-term assurance of the reliability of the equipment it operates and the ability to provide ongoing operational support including an on-site training, 24/7 phone support, and 18 months guarantee after purchase.

Quick Removal of Contaminants

Small diameter air bubbles in our systems mean that contaminants are removed from treated water much faster than by other means, and that filtered effluent can therefore be provided to industries with quick response times.

Economically Advantageous

Our systems provide companies with low operating and maintenance costs, coupled with energy efficiency savings that provide an economic advantage for companies to produce treated effluent using our methods versus traditional methods of treated effluent production.

Dissolved Air Flotation Design: Remove Oils Solids Greases From Wastewater Via Pressurized Air Bubble Process

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(DAF) Dissolved Air Floatation Machine

What is DAF?
Dissolved air flotation (DAF) is a water treatment process designed to remove oils, solids, and greases. In fact, the process helps clarify wastewaters – and other waters – by eliminating different types of suspended matter. The DAF process dissolves air in the water under pressure – then releases it at atmospheric pressure. The dissolved air flotation process takes place in a tank basin, which is ideal for catching and eliminating suspended matter. In fact, the released air creates tiny bubbles, which conform to the suspended matter and cause it to rise to the surface. Skimmers or a similar device then eradicate the substance.

FAQ

If a DAF System fails, what are the procedures to be followed?

If a DAF system fails to operate correctly or at all, our 24/7 Global Support Services will diagnose the problem from the customer site or visit the customer site as required. Standard Warranty for DAF systems is for 18 months, and we can ship spare parts within 48 hours.

Are your DAF Systems environmentally friendly?

Yes, DAF Systems can meet all governmental requirements. All DAF Systems comply with ISO, CE, and Local Environmental Regulations. Additionally, Energy Saving Features (e.g. Variable Frequency Drives) lower our carbon footprint.

How well do your DAF Systems treat waste?

Typical removal rates for DAF systems are as follows: Suspended solids at 90%-95%, Oils & Fatty substances at 85%-95%, Chemical oxygen demand at 30%-50%. Treatment efficiency varies with different Wastewater characteristics; however, our engineers adjust DAF Systems to perform optimally.

Which industries utilize your DAF Systems?

DAF Systems are utilized in several industries including Municipal Waste Water Treatment, Food & Beverage (i.e. Meat, Dairy), Oil & Gas, Chemical, Pulp and Paper, and Textile. All DAF Systems are designed as customised solutions with regard to the industry's specific requirements.

Our Company

Oct

Phakee Company from Thailand visited

Phakee Company from Thailand inspects advanced water treatment systems and explores environmental cooperation with our innovation-driven team. Discover how we're shaping sustainable solutions together.

Oct

Wastewater Treatment Group Standard

On October 9, key group standards for new pollutant control in urban wastewater took effect. Discover how these guidelines improve water quality and support safer reuse. Learn more now.

Oct

The 2025 Amsterdam Water Treatment Exhibition

Discover cutting-edge water treatment technologies and global solutions from the 2025 Amsterdam International Water Exhibition. Explore industry trends and advancements shaping the future of water sustainability. Learn more now.

What Our Clients Are Saying

Sarah

Our petrochemical facility is utilizing DAFs to achieve a 95% oil removal from wastewater streams in the most cost-effective manner. The 24/7 support from DAF has allowed us to resolve issues quickly with no interruptions or downtime.

Sini

I am currently utilizing DAFs in my biodiesel processing facility for removing plug oils and greases from washing water. The sturdy stainless steel construction of these units supports the confidence I have, along with an 18-month warranty.

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Why Choose Us

Qingdao EVU Environmental Protection Equipment Co., Ltd. is of scientific research design, equipment manufacture, installation,commissioning and training services as one integrated technology-oriented enterprises in water treatment industry. It is holding by Qingdao Spark Textile Machine Co., Ltd which is a national Spark Industrial Group, national second-level and large-scale comprehensive enterprise group in China. We use the advanced technology and equipment over the world. We based on "technological development, pollution remediation, wholeheartedly for customer services". We hope to cooperate with all customers from all over the world and build a better world together.