QL-DAF Series: Containerized Physico Chemical Water Treatment System Advanced Non-Soluble Contaminant Removal for Industrial Wastewater 1

QL-DAF Series: Containerized Physico Chemical Water Treatment System Advanced Non-Soluble Contaminant Removal for Industrial Wastewater 2

QL-DAF Series: Containerized Physico Chemical Water Treatment System Advanced Non-Soluble Contaminant Removal for Industrial Wastewater

QILEE QL-DAF Series is an integrated pretreatment system engineered to remove non-soluble contaminants-such as suspended solids, colloidal particles, fats, oils, and greases (FOG)-from industrial wastewater. By combining chemical dosing, dissolved air flotation (DAF), and multi-media filtration, the system delivers high-purity clarified effluent ideal for direct discharge or downstream treatment. Fully containerized and automated, it ensures rapid deployment, minimal operator intervention, and consistent performance under variable load conditions.

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Treatment Objectives & Performance Guarantee

The system targets non-soluble pollutants through physico-chemical processes. Performance is evaluated based on the removal of suspended and colloidal substances.

Parameter	Design Influent Range	Effluent Quality
Suspended Solids (SS)	≤ 1,000 mg/L	≤ 50 mg/L
Turbidity	≤ 200 NTU	≤ 10 NTU
Fats, Oils & Grease (FOG)	≤ 500 mg/L	≤ 15 mg/L

Process Description

QL-DAF Series: Containerized Physico Chemical Water Treatment System Advanced Non-Soluble Contaminant Removal for Industrial Wastewater 5

Chemical Conditioning

Inline dosing of coagulants (e.g., PAC, FeCl₃) and flocculants (PAM) to agglomerate fine particles and emulsified oils.

Flotation Separation

Microbubbles from a pressurized saturation vessel attach to flocs, lifting them to the DAF surface for mechanical skimming.

QL-DAF Series: Containerized Physico Chemical Water Treatment System Advanced Non-Soluble Contaminant Removal for Industrial Wastewater 7

Sludge Handling

Concentrated float sludge is discharged to a storage hopper for dewatering.

Polishing Filtration

Effluent passes through multi-media filters to capture residual flocs, ensuring turbidity ≤ 2 NTU.

Chemical Process Flow Chart

Core Advantages

Modular & Containerized Design

Built into standard shipping containers (20ft/40ft/40ft HC) for easy global transportation and on-site installation. No civil engineering needed-simply connect pipelines and power to start operation within 24 hours.

Integrated Process

Combines chemical dosing (coagulant/flocculant), static mixer, flocculation tank (with paddle agitator), lamella sedimentation zone, sludge hopper, and self-cleaning system in one unit-simplifying process management.

Export-Ready Configuration

Corrosion-resistant materials (304 stainless steel or CS+FRP optional) to adapt to harsh marine transportation and on-site environments.

Intelligent Automation

PLC control system with HMI touchscreen enables automatic adjustment of chemical dosage, water flow, and sludge discharge. Supports remote monitoring via MODBUS/PROFINET for centralized management.

Low Operation & Maintenance

Compact footprint (saves 60% space compared to traditional sedimentation tanks), low energy consumption, and self-cleaning sludge discharge design reduce labor and operational costs.

Notes for Export & Selection

Shipping Compatibility

All models are designed to fit standard ISO shipping containers-no disassembly required. 20ft models can be stacked 2 units high; 40ft models are compatible with standard container ships and flatbed trucks.

Material Options

Standard: Carbon steel with anti-corrosion coating (epoxy + polyurethane). Optional: 304/316L stainless steel or FRP for extreme corrosive water conditions (e.g., seawater, chemical wastewater).

Customization

Treatment capacity, inlet/outlet pipe sizes, chemical dosing unit configuration, and electrical voltage (110V/220V/380V, 50/60Hz) can be customized to meet export market requirements.

Effluent Standards

Adaptable to global standards (e.g., EU EN 872, US EPA, Chinese GB 18918) by adjusting lamella density and chemical dosing parameters.

Sludge Handling

Sludge concentration in the hopper reaches 3-5% (dry solids), reducing sludge treatment volume. Optional sludge dewatering module (belt filter press) is available for integrated sludge management.

Design & Construction Features

Materials

DAF tank and piping in PVC; carbon steel container with epoxy coating.

Control System

Diagnostic alerts and optional remote access.

Pre-commissioning

Factory-tested with simulated wastewater to verify performance.

Product Application

● Municipal wastewater pre-treatment/advanced treatment

● Industrial wastewater treatment (food & beverage, pulp & paper, chemical, mining, textile, electroplating)

● Raw water purification (surface water, groundwater, lake water)

● Reclaimed water treatment (industrial reuse, irrigation, landscape)

● Emergency water treatment (disaster relief, temporary construction sites)

● For detailed technical drawings, export documentation (certificates of origin, CE/UL certification), or customized solutions, please contact QILEE’s international sales team.