Wastewater Treatment Dissolved Air Flotation Systems (DAF)
Dissolved Air Flotation Systems (DAF) are indeed used in water treatment processes to remove suspended solids, oil, grease, and other contaminants from industrial wastewater. The process involves introducing air bubbles into the wastewater, which attach to the suspended particles and cause them to float to the surface, where they can be skimmed off and removed. This technology is widely used in various industries such as food processing, mining, oil and gas, and municipal wastewater treatment, among others, to achieve effective and efficient water purification.
Introduction
Dissolved Air Flotation (DAF) System for Industrial Wastewater Treatment
Jorsun’s Dissolved Air Flotation (DAF) system is an advanced solid-liquid separation technology designed to effectively remove suspended solids (SS), fats, oils, grease (FOG), and phosphorus (P) from various types of industrial wastewater. With years of engineering expertise, we deliver high-efficiency DAF systems tailored for modern industrial needs.
🔹 What is a Dissolved Air Flotation System?
A Dissolved Air Flotation system is a proven wastewater treatment method that uses microbubbles to separate fine solids, oils, and impurities. Commonly used in:
- 1. Food and Beverage Processing
- 2. Petrochemical and Refinery Wastewater
- 3. Pulp and Paper Industry
- 4. Textile and Dyeing Plants
- 5. Slaughterhouses and Rendering Plants
- 6. Municipal Wastewater Pretreatment
The DAF system offers high removal efficiency, low operating cost, and a compact design—making it essential in industrial water treatment processes.
🔹 How Does the DAF System Work?
- Chemical Pretreatment: Coagulants and flocculants form larger flocs for separation.
- Micro Bubble Generation: Air-saturated water releases microbubbles (20–50μm) into the tank.
- Flotation and Separation: Bubbles attach to flocs, floating them to the surface for removal.
- Effluent Discharge and Recycling: Clean water is collected and partially recycled for continuous microbubble production.
🔹 Key Benefits of Jorsun DAF Systems
- ✅ High Removal Efficiency: Up to 95% SS and >90% FOG removal
- ✅ Compact Design: Space-saving, modular footprint
- ✅ Low Chemical Use: Optimized dosing reduces cost
- ✅ Reliable Operation: Automated PLC control
- ✅ Energy Efficient: Low-pressure air dissolving system
- ✅ Customizable: Materials like SS304, SS316L, FRP-lined optional
🔹 Innovative DAF Technology Developed by Jorsun
Jorsun integrates traditional DAF principles with advanced innovations. Our systems include:
- CPrecision-designed air saturation tanks
- Optional high-efficiency lamella plate modules
- Smart chemical dosing systems
Each DAF system is designed for long-term durability and adaptability in harsh industrial environments.
🔹 Applications of DAF Systems
- 1. Pretreatment before MBR, SBR, or biological systems
- 2. COD and TSS reduction prior to discharge
- 3. Sludge thickening before dewatering
- 4. Phosphorus removal for nutrient control
- 5. Oil and grease recovery in food/oil industries
🔹 Why Choose Jorsun?
- 🌍 Projects in 40+ countries including Europe, Asia, and the Middle East
- 🧰 Complete system integration: dosing, sludge, automation
- 📦 Fast delivery and modular system design
📩 Request a Quote or Technical Consultation
Looking for a reliable, cost-effective Dissolved Air Flotation system? Contact our engineers for a free consultation or custom proposal:
- Email: jorsun01@jorsun.com
- Phone: +86-189-1830-1201
- Website: www.jorsun.com
Frequently Asked Questions (FAQ)
Q1: What industries use DAF systems?
A1: Food processing, petrochemical, textile, slaughterhouse, and municipal sectors.
Q2: How efficient is the DAF system in removing FOG and SS?
A2: Over 90–95% efficiency depending on influent conditions and design.
Q3: What size DAF system do I need?
A3: It depends on flow rate, SS/FOG levels, and discharge targets. Contact us for guidance.
Q4: Can DAF be used alone?
A4: DAF works standalone or as a pretreatment for biological or membrane systems.
Specification
|
Model |
Capacity |
Power(kw) |
Dimension(m) |
Pipe connention(DN) |
||||||
|
(m3/h) |
Recycle |
Air |
Skimming |
L/L1 |
W/W1 |
H/H1 |
(a) |
(b) |
(c) |
|
|
DAF-002 |
~2 |
0.75 |
0.55 |
0.2 |
3.3/2.5 |
2.4/1.16 |
2.1/1.7 |
50 |
50 |
80 |
|
DAF-003 |
~3 |
0.75 |
0.55 |
0.2 |
3.6/2.8 |
2.4/1.16 |
2.1/1.7 |
50 |
50 |
100 |
|
DAF-005 |
~5 |
1.1 |
0.55 |
0.2 |
3.9/3.0 |
2.4/1.16 |
2.1/1.7 |
80 |
50 |
100 |
|
DAF-010 |
~10 |
1.1 |
0.55 |
0.2 |
4.3/3.2 |
2.9/1.66 |
2.3/1.9 |
100 |
100 |
100 |
|
DAF-015 |
~15 |
2.2 |
0.75 |
0.2 |
5.4/4.3 |
2.9/1.66 |
2.3/1.9 |
100 |
100 |
100 |
|
DAF-020 |
~20 |
3.0/5.5 |
0.75 |
0.2 |
5.4/4.3 |
3.1/2.16 |
2.3/1.9 |
150 |
100 |
100 |
|
DAF-030 |
~30 |
3.0/5.5 |
0.75 |
0.2 |
6.5/5.4 |
3.1/2.16 |
2.3/1.9 |
150 |
150 |
150 |
|
DAF-040 |
~40 |
3.0/5.5 |
0.75 |
0.2 |
6.7/5.5 |
3.6/2.7 |
2.7/2.3 |
200 |
150 |
150 |
|
DAF-050 |
~50 |
7.5 |
1.5 |
0.2 |
7.6/6.3 |
3.6/2.6 |
2.7/2.3 |
200 |
150 |
150 |
|
DAF-060 |
~60 |
7.5 |
1.5 |
0.2 |
7.9/6.6 |
4.0/3.0 |
2.7/2.3 |
250 |
200 |
150 |
|
DAF-070 |
~70 |
11 |
1.5 |
0.2 |
9.2/7.9 |
4.0/3.0 |
2.7/2.3 |
250 |
200 |
150 |
|
DAF-080 |
~80 |
11 |
1.5 |
0.2 |
9.6/8.4 |
4.0/3.0 |
2.7/2.3 |
250 |
200 |
150 |
|
DAF-100 |
~100 |
15 |
2.2 |
0.2 |
10.7/9.4 |
4.4/3.4 |
2.7/2.3 |
300 |
250 |
150 |
|
DAF-120 |
~120 |
15 |
2.2 |
0.2 |
11.7/10.4 |
4.4/3.4 |
2.7/2.3 |
300 |
250 |
150 |
|
DAF-150 |
~150 |
18.5 |
2.2 |
0.2 |
12.5/11.4 |
4.4/3.8 |
2.7/2.3 |
300 |
300 |
150 |
Remark: To make the most suitable proposal, we will need know flowrate, wastewater source,wastewater quality (SS,BOD,COD,FOG etc ).
● Micro bubble generation technology
● Solid-liquid separation technology in scum zone
● Box type skimming system with patent
● Apply sedimentation theory for DAF2 series
● Laminar flow technology in separation zone for SDAF series
● Mild steel Q235B with epoxy coating
● Mild steel Q235B with FRP lining
● Stainless steel SUS304
● Stainless steel SUS316L
220V/240V/380V/400V/415V/440V/460V/575V
GB/JIS10K/ANSI150/DIN/BS
How can I send you the RFQ ?
A:You can contact us by email or call or leavel message on the website.
What info do I need provide you to make the proposal?
A:Pls provide us flowrate per hour,wastewater industry, wastewater quality(SS,BOD,COD,FOG etc) to be treated by our equipments, as detalied as possible. If you have jar test photo or video,that would be also good.
Are you the direct manufacturer with workshop?
A:Yes.We fabricate thoese equipments in our own workshop from material cutting,bending,welding,painting,assembling to test and commissioning before delivery.Occupied area is around 10,000 square meters.
What material can you offer? And what’s the most popular option?
A:We can fabricate carbon steel with epoxy coating or FRP lining, SUS304, SUS316L .Generally for ordinary wastewater not corrosive, carbon steel with epoxy coating is the most popular and cost-effective one.If corrosive, carbon steel with FRP lining is also a good option.
How to ship your equipments?
20’GP ,40’HQ or 40’FR (large flowrate )
How to install your equipment after receiving the goods?
A: Detalied manual book will be provied.We can also provide remote video guidance if necessary.Besides,our equipment is designed as a complete system, and automatic operation.So generally you only need connect the inlet/outlet nozzle, and extrernal cable .We have lots of experience in oversea projects,we are confident in helping you eliminate this concerns.
Do you provide after sales services as my project is not in China?
A:Of coure.Our sales and technician will reply to you on the day or next day (time gap) .We think highly of after sales service as a reputed DAF and Lamella clarifier brand manufacturer.
