Nanjing Lanjiang Water Treatment Equipment Co., Ltd
| Removal efficiency | 90% |
| Delivery Time | 30 |
| Energy consumption | 0.1 -0.3 kWh/m³ |
| Bubble diameter | 20 -50 μm |
| Payment Terms | T/T |
| Sludge moisture content | 95% -97% |
| Hydraulic retention time | 15 -30 minutes |
| Footprint reduction | 30% -50% |
| Model Number | QFJ Series |
| Brand Name | Lanjiang |
| Place of Origin | China |
View Detail Information
Explore similar products
Solid Liquid Separation Sewage Treatment Equipment Dissolved Air Flotation
High Efficiency DAF Machine for Solid Liquid Separation Industrial Wastewater
Hydraulic Velocity Control Sedimentation Tank With Integrated Separation And
Magnetic Coagulation Integrated Sedimentation Tank For Wastewater Treatment
Product Specification
| Removal efficiency | 90% | Delivery Time | 30 |
| Energy consumption | 0.1 -0.3 kWh/m³ | Bubble diameter | 20 -50 μm |
| Payment Terms | T/T | Sludge moisture content | 95% -97% |
| Hydraulic retention time | 15 -30 minutes | Footprint reduction | 30% -50% |
| Model Number | QFJ Series | Brand Name | Lanjiang |
| Place of Origin | China | ||
| High Light | Efficient Removal of Suspended Solids Micro-Bubble Air Flotation Machine ，Rapid Treatment Dissolved Air Flotation Unit ，Flexible Operation DAF Machine | ||
The dissolved air flotation unit is a highly efficient water-treatment system widely used for industrial wastewater, municipal sewage, hospital wastewater, and other treatment applications.
Its principal advantage is the rapid separation of solids and liquids by means of fine air bubbles. These bubbles attach to suspended particles and reduce their apparent density, causing the particles to rise to the water surface for removal.
The flotation process is particularly suitable for fine impurities whose specific gravity is close to that of water and which are therefore difficult to separate by natural settling or flotation under their own weight.
In water-supply and wastewater-treatment pretreatment processes, most suspended contaminants are relatively light, except for raw water containing large amounts of sand and wastewater with a high concentration of heavy mechanical impurities.
Conventional sedimentation generally performs poorly when treating these contaminants. The problem becomes more pronounced under low-temperature winter conditions, when coagulation performance and hydraulic conditions deteriorate.
Attempting to force difficult-to-settle flocs downward by gravity alone is inefficient. Air-flotation technology instead introduces fine bubbles into the water. The bubbles adhere to the flocs, significantly reducing their overall density. The buoyancy and upward velocity of the bubbles then carry the flocs rapidly to the water surface, achieving efficient solid-liquid separation.
In this respect, air-flotation technology represents a major development beyond conventional gravity sedimentation and has opened up a broader field of solid-liquid separation applications.
Wide range of applications:
The equipment is particularly suitable for treating:
Compact design:
The modular structure can reduce the required footprint by approximately 30%-50% compared with conventional treatment systems, making it particularly suitable for expansion and upgrading projects at hospitals, factories, and existing wastewater treatment facilities.
Adjustable operating parameters:
The air-bubble production rate, recycle ratio, chemical dosage, and other operating parameters can be adjusted according to real-time water-quality conditions. This allows the system to accommodate variations in influent quality, including seasonal fluctuations in hospital wastewater.
Intelligent control:
An integrated PLC control system can automatically regulate chemical dosing, including PAC and PAM addition, as well as air-bubble generation, thereby reducing the need for manual operation.
Reduced sludge-treatment load:
The floated sludge generally has a moisture content of approximately 95%-97%, which is lower than that of many conventional sedimentation sludges. It is therefore easier to thicken and dewater, helping to reduce subsequent sludge-handling costs.
Resource recovery:
Separated oils, fats, fibers, and other recoverable materials may be collected for reuse or further processing. For example, recovered fats and oils may be used as raw materials for biodiesel production where technically and economically feasible.
Low energy consumption:
The stated energy consumption is approximately 0.1-0.3 kWh/m³, providing relatively low operating costs compared with energy-intensive separation processes such as centrifugal separation.
Reduced chemical consumption:
The flotation effect produced by fine bubbles can improve solid-liquid separation and may reduce the required dosage of coagulants and flocculants, thereby lowering operating costs and reducing the risk of secondary pollution.
Air-flotation equipment can be particularly useful in medical wastewater treatment because it can remove suspended materials that may carry microorganisms, including blood residues, tissue fragments, oils, and other particulate matter.
However, air flotation is a pretreatment or separation process and cannot replace disinfection. A subsequent disinfection process, such as ozone, ultraviolet irradiation, or chemical disinfection, must be provided to ensure that the final effluent meets the applicable hygiene and discharge requirements.
Company Details
Business Type:
Manufacturer
Year Established:
2001
Total Annual:
40000000-70000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Nanjing Lanjiang is a professional manufacturer integrating the design, research and development, production, and sales of wastewater treatment equipment. The company is located at No.18 Xinyu Road, Hengliang Street, Liuhe District, in the northern suburbs of Nanjing (adjacent to the Ningtong Expres... Nanjing Lanjiang is a professional manufacturer integrating the design, research and development, production, and sales of wastewater treatment equipment. The company is located at No.18 Xinyu Road, Hengliang Street, Liuhe District, in the northern suburbs of Nanjing (adjacent to the Ningtong Expres...
Get in touch with us
Leave a Message, we will call you back quickly!