Dissolved Air Flotation - Wastewater Treatment

Principle of DAF

The DAF Separator provides effective separation of suspended solids, fats, oils and greases from liquids by dissolved air flotation. Flotation of the solids is accomplished by the introduction of tinny air bubbles into the process water. As the bubbles rise, they attach themselves to the particales in suspension and carry them to the surface for removed.

Features of DAF1-030

1. Design treatment capacity:30 m3/h.

2. High-rate clarifier for high SS water (light particles, oil and colloid).
3. Fully(100%) manufactured in the factory, and no need secondory welding. It costs 3h for 2 manpower to assemble.
4. Indoor or outdoor layout (environmental temperature should be over 0°C).
5. Apply to automatic & continious operation.
6. Design life: Carbon steel material: >10years;
Stainless steel material: >20years.

Advantages of DAF1-030

1. Extremely high srcaping speed (2-3 times faster than conventional design) and safty operation because of using fully reverse and closed scraper (Patent No:ZL 2011 2 0092349 . 4).
2. High hydraulic load and low footprint because of horizontal plates in the separation zone, more effective separation and optimization hydraulic flow in the separation area.
3. Better outlet water quality because of W-shape sludge sedimentation hopper.
4. Effectively minimize chemical consumption because of re-flocculation performance of reverse scraping design.
5. No blind angle in scum collection chamber.

Use

Corresponding water quality: high SS, and the specific gravity of suspended solids or contaminants is generally slight greater than water, settle effectively and have a pretty clear tendency to precipitate, like:

Oil and Fats, Food Industry effluents with high solids concentration,
Sludge Thickening,
Galvanizing Electroplanting,
Pharmaceutical Industry,
Leather Industry,etc.

Specifications of DAF1-030

Air Dissolving System Skimming System Electricity and Hand Rail and Walkway

Patent:ZL 2011 2 0092349.4 Controlling Device GB 4053.3-2009

Carbon Steel surface finish and corrosion treatment

1. Sand Blasting/ Shot Peening, ISO Sa≥2.5,epoxy Zinc Rich Primer, 50μm/coat.
2. Internal: a) Epoxy Zinc-rich Primer, 50μm/coat×1;
b) Epoxy Mastic Paint, 100μm/coat×2~3;
c) Total film thickness: ≥250μm.
3. External: a) Epoxy Zinc-rich Primer, 50μm/coat×1;
b) Epoxy Micaceous Iron Intermediate Paint, 50μm/coat×1;
c) Polyurethane Finish, 50μm/coat×1;
d) Total film thickness: ≥150μm.

Spraying Method: High-Pressure Airless Spraying

Device Color: Light Sea Blue (PANTONE No.RAL5015),or according to customers’ demands.

Standards for Interface Flange

China: JB/T81-1994, PN 1.0

America: ANSI 150

Japan: JIS 10K

Vulnerable Part and Its Replacement Cycle

Optional inclusions for DAF1-030

Our Services

1. Detailed installation manual and maintenance guideline are provided with the equipment.

2. Technical training and site-commissioning are available for you.

3. Any equipment issue, we will stand by. However, the visa fee, air tickets, accommodation, wages will be paid by buyers.

FAQ

1. How to buy your idea products?

A:You can provide us your water sources, water quality, flow rate and ground area (connect us for more details).

2. How to pay?

A: TT and L/C are acceptable and TT will be more appreciated. 30% deposit before producing, 70% balance before loading by TT.

3. What is the delivery time?

A: It depends on order quantities. Generally speaking, the delivery time will be within 4 to 6 weeks.

4. How to pack the products?

A: We use standard package. If you have special package requirements, we will pack as required, but the fees will be paid by customers.

5. How to keep your equipments from corrosion?

A: We use the world-famous paint, like SigmaCoatings,PainBow,etc. What's more, we paint strictly according to the standard process.

6. How do you manufacture your equipment ?

A:Our machining technology includes laser/plasma cutting, automatic welding,CNC cutting and bending.

7. How to install after the equipments arriving destination?

A: We will provide detailed illustrations to you. If it is necessary, we will send technicians to help you. However, the visa fee, air tickets, accommodation, wages will be paid by buyers.