Dissolved Air Flotation System for High COD Oil grease industrial wastewater
Oil and Grease: remove 70—90% of input
Suspended matter: remove 50—80%
COD: low down 40%
DAF System Including: Reaction Tank, Dissolved Air Tank, Dissolved Air Pressure Pump, Control System, Agitator, Slag Scraper, Pipes and Fitting, Ladder and Fence, Dosing System
Description:
The DAF System , high efficiency dissolved air flotation machine is composed of high efficient air dissolving system and designed according to the new-generation of solid-liquid separation technology, which make the Hinada dissolved air flotation equipment (DAF) very efficient in removing organic and inorganic suspended matters, flocs, phosphorus (p), oil and grease from industrial wastewater such as oil refining, chemical industry, brewing, vegetable oil production and refining, slaughtering, electroplating, printing and dyeing.
Product Specification
General Description
The DAF System , high efficiency dissolved air flotation machine is composed of high efficient air dissolving system and designed according to the new-generation of solid-liquid separation technology, which make the Hinada dissolved air flotation equipment (DAF) very efficient in removing organic and inorganic suspended matters, flocs, phosphorus (p), oil and grease from industrial wastewater such as oil refining, chemical industry, brewing, vegetable oil production and refining, slaughtering, electroplating, printing and dyeing.
Dissolved Air Flotation Machine Specification
Hinada the leading manufacturer of DAF System for industrial wastewater treatment according to project requirement. To make the suitable proposal, we need know more details of project included: capacity, wastewater source,wastewater quality (SS,BOD,COD,FOG etc ).
Dissolved Air Flotation System main feature
DAF System Application
Food Processing Wastewater Oil and Gas Wastewater
Pulp and Paper Mill Effluent Chemical Manufacturing Wastewater
Textile Wastewater Pharmaceutical Wastewater
Mining and Metal Processing Wastewater Municipal Wastewater Treatment Plant
DAF System Benifits
Dissolved Air Flotation System with the purpose to reduce and remove or low down the COD, TSS and FOG from industrial wastewater. The DAF system utilises fine air bubbles, also known as ‘White Water’, which attach themselves to the suspended material within the waste stream, increasing buoyancy and floating them to the surface. The floated solids are then removed by a simple but effective scraper mechanism. More often than not chemical conditioning is used to increase the effectiveness of the Dissolved Air Flotation process.
The Dissolved Air Flotation process uses the most reliable and positive method of producing air bubbles of the optimum size. This is done by dissolving air into water under pressure and then dropping the pressure on entry to the DAF cell using a controlled nozzle orifice. As the pressure is reduced, the air naturally comes out of solution in the form of micro bubbles.
* Hinada has 10 Years custom DAF System for wastewater treatment designing experiences, we can design and install as your any project requirements, reduce your projects investing cost.
* Standard designs according your application, requirement and budget, we are one of leading DAF system manufacturers in China, we can produce and accept any special requirement orders.
Packaging
Plywood case packed or in container loading.
Our Service
* Hinada has 10 Years custom DAF System for wastewater treatment designing experiences, we can design and install as your any project requirements, reduce your projects investing cost.
* Standard designs according your application, requirement and budget, we are one of leading DAF system manufacturers in China, we can produce and accept any special requirement orders.
* Offer installation and commissioning support.
- Specifications
-
Product Specification
General Description
The DAF System , high efficiency dissolved air flotation machine is composed of high efficient air dissolving system and designed according to the new-generation of solid-liquid separation technology, which make the Hinada dissolved air flotation equipment (DAF) very efficient in removing organic and inorganic suspended matters, flocs, phosphorus (p), oil and grease from industrial wastewater such as oil refining, chemical industry, brewing, vegetable oil production and refining, slaughtering, electroplating, printing and dyeing.
Dissolved Air Flotation Machine Specification
Hinada the leading manufacturer of DAF System for industrial wastewater treatment according to project requirement. To make the suitable proposal, we need know more details of project included: capacity, wastewater source,wastewater quality (SS,BOD,COD,FOG etc ).Dissolved Air Flotation System main feature
- Application
-
DAF System Application
Food Processing Wastewater Oil and Gas Wastewater
Pulp and Paper Mill Effluent Chemical Manufacturing Wastewater
Textile Wastewater Pharmaceutical Wastewater
Mining and Metal Processing Wastewater Municipal Wastewater Treatment Plant
- Benefits
-
DAF System Benifits
Dissolved Air Flotation System with the purpose to reduce and remove or low down the COD, TSS and FOG from industrial wastewater. The DAF system utilises fine air bubbles, also known as ‘White Water’, which attach themselves to the suspended material within the waste stream, increasing buoyancy and floating them to the surface. The floated solids are then removed by a simple but effective scraper mechanism. More often than not chemical conditioning is used to increase the effectiveness of the Dissolved Air Flotation process.
The Dissolved Air Flotation process uses the most reliable and positive method of producing air bubbles of the optimum size. This is done by dissolving air into water under pressure and then dropping the pressure on entry to the DAF cell using a controlled nozzle orifice. As the pressure is reduced, the air naturally comes out of solution in the form of micro bubbles.
* Hinada has 10 Years custom DAF System for wastewater treatment designing experiences, we can design and install as your any project requirements, reduce your projects investing cost.
* Standard designs according your application, requirement and budget, we are one of leading DAF system manufacturers in China, we can produce and accept any special requirement orders. - Packaging
-
Packaging
Plywood case packed or in container loading.
- Our Service
-
Our Service
* Hinada has 10 Years custom DAF System for wastewater treatment designing experiences, we can design and install as your any project requirements, reduce your projects investing cost.
* Standard designs according your application, requirement and budget, we are one of leading DAF system manufacturers in China, we can produce and accept any special requirement orders.
* Offer installation and commissioning support. - DAF System Video
-
Send Inquiry To Us
What is dissolved air flotation (DAF)?
Dissolved Air Flotation System with the purpose to reduce and remove or low down the COD, TSS and FOG from industrial wastewater. The DAF system utilises fine air bubbles, also known as ‘White Water’, which attach themselves to the suspended material within the waste stream, increasing buoyancy and floating them to the surface. The floated solids are then removed by a simple but effective scraper mechanism. More often than not chemical conditioning is used to increase the effectiveness of the Dissolved Air Flotation process.
The Dissolved Air Flotation process uses the most reliable and positive method of producing air bubbles of the optimum size. This is done by dissolving air into water under pressure and then dropping the pressure on entry to the DAF cell using a controlled nozzle orifice. As the pressure is reduced, the air naturally comes out of solution in the form of micro bubbles.
DAF is used in municipal wastewater treatment, industrial wastewater treatment, In these treatment systems, DAF is used to remove a diverse range of pollutants as listed in Table 1. These include suspended solids, organic matter, hydrocarbons from the oil and gas industry, phosphorus and nitrogen from the food and beverage industry, and minerals and metals from the mining industry.
How does a dissolved air flotation system work?
In a DAF system, compressed air is pumped into the flocculation chamber of the wastewater system and the compressed air is released at atmospheric pressure. The released air forms tiny bubbles that adhere to the suspended matter. The air bubble-suspended matter floats to the surface of the water (called the floc) and can be removed by a skimming device.
Coagulantor flocculants are added to allow suspended solids and colloidal solids to clump together for their removal by the DAF system. Polyelectrolyte or polymers could be included in situations of reduced performance of the DAF system if the floc is fragile and cannot be removed entirely by skimming.
Coagulants include alum, poly aluminum chloride, poly aluminum sulfate, ferric chloride, bentonite, and organic polymers. The use of these chemicals depend on what needs to be removed. For example, a study showed that monomeric aluminum was more efficient in removing suspended solids and soluble chemical oxygen demand (COD) than polymeric or colloidal aluminum. However, polymeric or colloidal aluminum were more effective in removing soluble silica.
The DAF System Advantages:
- Light particles such as algae that are difficult to settle can be removed by DAF.
- DAF treatment can remove light particles of low concentrations unlike sedimentation that requires a higher concentration of particles to settle for their removal. DAF treatment can be operated using much higher surface loading rates (SLR) than sedimentation.
- DAF treatment leads to clarified water by removing pollutants to assist the water in meeting regulatory standards and depending on the wastewater treatment system, for safe discharge of the treated water into the water bodies.
- Chemical oxygen demand (COD) and biological oxygen demand (BOD) removal.
- Helps drinking water achieve clarity and contributes to preventing issues related to taste, odor, and the possible formation of disinfection byproducts during the water treatment.
