Standard Integrated Horizontal Flow Dissolved Air Flotation (DAF) for Multi-Scenario Wastewater Treatment
Brief Description
This equipment adopts recycled dissolved air technology and microbubble adsorption flotation principle to rapidly separate light oil contaminants and fine flocs from wastewater. The unit supports fully automatic operation with stable start-up & shutdown performance and low failure rate. It is mainly applicable to wastewater with low sediment content, and can continuously produce qualified effluent to meet conventional sewage discharge standards.
Product Overview
The standard horizontal flow DAF is a versatile skid-mounted integrated wastewater treatment facility. Coagulation reaction zone, pressurized air dissolution system, flotation separation zone, automatic scum skimming mechanism and electric control system are all integrated on a single skid. All components are fully prefabricated and assembled in factory; only on-site pipeline connection is required to complete commissioning and formal operation. Based on mature horizontal flow air flotation technology, the machine features solid structure, reliable operation and easy daily maintenance. It is specially designed to remove hardly settleable emulsified oil, light suspended solids, fine fibers and colloidal impurities in water. As a mainstream air flotation equipment with stable performance and wide adaptability, it is widely used as pretreatment for various oily industrial wastewater.
Working Principle
Recycled water is pressurized and fully aerated inside the dissolved air tank to generate a large number of tiny microbubbles. Microbubbles adhere and bind to emulsified oil and fine flocs in wastewater, reducing the overall density of pollutants. Pollutants then quickly float upward to the water surface and form concentrated scum layer. The automatic scum skimmer continuously scrapes off surface scum, while treated clean water is collected and discharged from the tank bottom, finally realizing solid-liquid separation and oil-water separation.
Product Parameters
|
Model
|
Capacity
|
Power (kW)
|
Specification (m)
|
Connection Caliber (DN)
|
|
W-DAF
|
(m³/h)
|
Dissolved Air Pump
|
Air Compressor
|
Scum Skimmer
|
Coagulant Mixer
|
Flocculation Mixer
|
DAF L₁/L₂
|
IDAF L₁/L₂
|
W₁/W₂
|
H₁/H₂
|
Inlet
|
Outlet
|
Sludge Outlet
|
Drain Outlet
|
|
003
|
~3
|
0.75
|
0.55
|
0.12
|
0.37
|
0.25
|
3.6/2.8
|
4.1/3.2
|
2.4/1.2
|
2.2/1.7
|
50
|
50
|
80
|
80
|
|
005
|
~5
|
1.1
|
0.55
|
0.12
|
0.37
|
0.25
|
3.8/3.0
|
4.4/3.6
|
2.4/1.2
|
2.2/1.7
|
80
|
80
|
80
|
80
|
|
010
|
~10
|
4.0
|
0.55
|
0.12
|
0.37
|
0.25
|
4.3/3.3
|
5.0/4.0
|
2.9/1.7
|
2.4/1.9
|
100
|
100
|
100
|
100
|
|
020
|
~20
|
4.0
|
0.75
|
0.12
|
0.37
|
0.25
|
5.7/4.8
|
6.2/5.2
|
3.2/2.2
|
2.4/1.9
|
150
|
100
|
100
|
100
|
|
030
|
~30
|
5.5
|
0.75
|
0.12
|
0.37
|
0.25
|
6.5/5.5
|
7.7/6.7
|
3.2/2.2
|
2.4/1.9
|
150
|
150
|
150
|
100
|
|
040
|
~40
|
5.5
|
0.75
|
0.12
|
0.75
|
0.37
|
6.5/5.5
|
7.7/6.7
|
3.6/2.7
|
2.4/1.9
|
200
|
200
|
150
|
100
|
|
050
|
~50
|
7.5
|
0.75
|
0.12
|
0.75
|
0.37
|
7.3/6.3
|
8.8/7.8
|
3.6/2.7
|
2.4/1.9
|
200
|
200
|
150
|
100
|
|
080
|
~80
|
11
|
1.5
|
0.12
|
1.5
|
0.37
|
8.9/7.6
|
10.6/9.2
|
4.4/3.4
|
2.7/2.3
|
250
|
200
|
150
|
100
|
|
100
|
~100
|
11
|
1.5
|
0.12
|
1.5
|
0.37
|
10.8/9.4
|
13.2/11.8
|
4.4/3.4
|
2.7/2.3
|
300
|
250
|
150
|
100
|
|
120
|
~120
|
11
|
2.2
|
0.12
|
1.5
|
0.37
|
11.7/10.4
|
14.2/12.8
|
4.4/3.4
|
2.7/2.3
|
300
|
250
|
150
|
100
|
|
150
|
~150
|
15
|
3
|
0.12
|
1.5
|
0.37
|
13.5/12.0
|
15.8/14.4
|
4.5/3.8
|
2.7/2.3
|
300
|
300
|
150
|
100
|
Key Design & Performance Features
1. The tank adopts a simple, sturdy structure without internal filter media, effectively avoiding blockage failures and minimizing daily maintenance workload.
2. Excellent removal efficiency for hardly settleable pollutants including emulsified oil, light flocs and fine fibers.
3. Strong adaptability to routine fluctuations of water quality and water flow, capable of stable 24-hour continuous operation.
4. Integral skid-mounted design reduces on-site construction work, convenient for installation, commissioning and relocation.
5. The equipment can bear influent with moderate suspended solids and possesses outstanding shock load resistance; Large grit and sediment shall be removed via pre-treatment facilities in advance to prevent tank deposition and blockage.
Applications
1. Pretreatment of various oily industrial wastewater: catering wastewater, machining wastewater, printing & papermaking wastewater, food processing & slaughter wastewater.
2. Purification treatment of aquaculture tail water.
3. Renovation and upgrading of small & medium-sized municipal sewage stations.
4. Ecological restoration and water quality purification for rivers, lakes and landscape water bodies.
Company Profile
WESUS is a leading manufacturer and total solution provider for advanced sewage and sludge treatment systems. Founded in Yixing, China in 2013, we offer reliable, cost-effective equipment and engineering services to global clients. Certified with ISO 9001, ISO 14001 and ISO 45001, we possess strong in-house R&D and manufacturing capabilities supported by a large production base, a professional technical team, patents and university cooperation. Our comprehensive product range includes screening, filtration, sludge dewatering, mixing, aeration and customized solutions. With end-to-end services from design to after-sales support and proven global project experience, we have earned wide recognition including national high-tech enterprise and 5-star after-sales certifications. Adhering to the philosophy of real innovation, excellence and win-win cooperation, WESUS is committed to providing smart, sustainable water treatment solutions for municipal and industrial clients worldwide.
FAQ
Q1: Are you a direct manufacturer? What certifications do you hold?
A: We are a direct manufacturer with our own production facilities and R&D team. We maintain full control over quality, cost, and delivery, and hold certifications including ISO 9001/14001 for our core products.
Q2: What types of collaboration models do you offer?
A: We provide flexible solutions:
- Equipment Supply: Standalone or packaged systems.
- Turnkey Solutions (EPC): Design, procurement, construction, and commissioning.
- Technical Cooperation: Process upgrades, operational maintenance support, and technical consulting.
Q3: How is after-sales service and support ensured?
A: We provide full lifecycle support:
- Warranty: 12–24 months on core equipment.
- Response: 7x24 remote support with fast on-site assistance when needed.
- Spare Parts: Genuine parts are stocked for long-term supply security.
- Maintenance: Annual Maintenance Contracts (AMC) are available to ensure long-term system efficiency.
Q4: What is your typical project execution process?
A: Our standardized workflow ensures efficiency and transparency:
1. Requirement Analysis → 2. Proposal & Quotation → 3. Design Finalization → 4. Production & Factory Testing → 5. Shipping & Installation → 6. Commissioning & Training → 7. After-sales Service.
Customer involvement is encouraged at key milestones.
Q5: Can you provide references or case studies?
A: We have extensive global project experience across municipal and various industrial sectors. We can provide detailed, anonymized case studies and client references upon request.
Q6: What are your payment terms and delivery lead times?
A: - Payment: We accept T/T and L/C, with standard industry progress payment terms.
- Lead Time: Standard equipment: 4–8 weeks. Large custom projects: 12–20 weeks.
A clear production schedule is provided upon contract signing.
Q7: How do you serve international clients?
A: We are experienced in international projects, arranging complete logistics (FOB, CIF, DDP, etc.) and providing full customs documentation. Our designs pre-consider compliance requirements in target markets.
Q8: Can you upgrade or retrofit existing systems?
A: Yes. We specialize in evaluating existing facilities and providing customized retrofit and expansion solutions to enhance performance and capacity with minimal investment and downtime.
Q9: How can we start a consultation?
A: Please contact our Sales Engineering team. To facilitate an efficient discussion, please have your treatment requirements, water quality data, and site information ready. We will provide a preliminary proposal and professional advice.
