15–20 m³/h DAF System for Industrial Greywater Treatment
The 15–20 m³/h DAF system is designed for efficient solid-liquid separation in industrial wastewater and greywater treatment. It removes suspended solids, oil, and colloidal particles using dissolved air flotation and microbubble adhesion. Suitable for manufacturing plants, food processing facilities, and municipal pretreatment, the system combines flotation and inclined plate settling to improve separation efficiency. It supports stable effluent clarification while reducing sludge volume for downstream handling processes.
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Product introduction of 15–20 m³/h DAF System
The 15–20 m³/h dissolved air flotation system is a compact wastewater treatment unit designed for continuous solid-liquid and oil-water separation. Typically constructed with carbon steel or stainless steel, it integrates a saturator, air release system, skimmer, and sludge discharge components. The system effectively removes fine suspended solids, grease, and colloidal particles with densities close to water. It is suitable for industrial wastewater treatment, greywater reuse systems, and pretreatment processes. Common users include manufacturing plants, food processors, and chemical facilities requiring reliable clarification performance.
Working Principle
The wastewater is pumped into the DAF system and mixed with air-saturated water to generate microbubbles. These bubbles attach to suspended particles, oil, and colloids, reducing their density and causing them to float to the surface. A skimmer continuously removes the floated sludge. Heavier particles settle through the lamella plate zone to the bottom and are discharged separately. Clarified water flows out through the central outlet for further treatment or discharge.
Product Parameter Table
| Capacity | 15-20 m³/h |
| Empty load weight | 3 t |
| Full load weight | 15 t |
| Reflux pump | 3 kW |
| Dissolved air flotation water | 5-7 m³/h |
| Separation area | 5.4 m² |
Main Features
- Integrated dissolved air flotation and lamella plate design improves separation surface and efficiency.
- Microbubble generation system enhances adhesion with fine suspended solids and oil particles.
- Inclined plate settling zone supports removal of heavier particles and reduces sludge accumulation.
- Skimmer mechanism ensures continuous surface sludge removal with stable discharge performance.
- Optional PLC control system allows automated operation and consistent process monitoring capability.
- Corrosion-resistant material options such as carbon steel or stainless steel extend equipment service life.
Application Scenarios
- Industrial wastewater treatment in manufacturing plants including metal processing and fabrication industries
- Food processing wastewater treatment such as dairy, meat, and beverage production facilities
- Oil and grease removal in petrochemical, refinery, and mechanical processing wastewater streams
- Greywater recycling systems for commercial buildings and industrial reuse applications
- Pretreatment stage for municipal sewage treatment plants to reduce suspended solids load
FAQ
Q1: What contaminants can this DAF system remove?
It removes suspended solids, oil, grease, and colloidal particles with densities close to water.
Q2: Is the system suitable for continuous operation?
Yes, it is designed for continuous inflow treatment with automatic sludge discharge capability.
Q3: What materials are available for the system construction?
Carbon steel and stainless steel options are available depending on water quality conditions.
Q4: Does the system require chemical dosing?
It can operate with or without chemical dosing, depending on influent characteristics and treatment requirements.
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