High-Performance and Energy-Saving Dissolved Air Water Treatment for Environmental Protection Equipment

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Product Description

High-Performance and Energy-Saving Dissolved Air Water Treatment for Environmental Protection Equipment

Equipment Description

I. Working Principle

Pressurized Dissolved Air: Air at a pressure of 0.35-0.45 MPa passes through a dissolver and mixes with water, forming supersaturated dissolved air water. The filler layer inside the dissolver enhances gas-liquid contact efficiency.
Decompression Release: The dissolved air water enters a normal pressure environment through a releaser, instantly releasing microbubbles with a diameter of 20-50 μm. These bubbles evenly adhere to the surface of suspended matter.
Flotation Separation: The bubble-suspended matter complex rapidly rises to form a scum layer. The clear water below is discharged through a collection pipe.
Scum Removal: A scum scraper removes the surface scum into a sludge tank, reducing the water content to ≤90%, completing solid-liquid separation.

II. Technical Features

High-Efficiency Separation: Removal rates of 85%-95% are achieved for oily wastewater, fibrous suspended matter, and algae.
Energy-Saving Design: The modular structure reduces footprint by 30% and reduces dissolved air energy consumption by 20% compared to traditional equipment.
Stable Operation: The system features uniform microbubble distribution and strong resistance to water quality fluctuations.
Environmental Compatibility: The integrated paint mist treatment unit ensures emissions comply with GB 37824-2024 standards.

III. Applications

Industrial Wastewater: Separation of suspended solids and grease in the papermaking, printing and dyeing, and food processing industries.
Municipal Wastewater: Concentration of sludge after biological treatment and purification of low-turbidity, high-color water.

Main Structures and Components

I. Core Structure

Dissolved Air System: High-pressure vessel (operating pressure 0.35-0.45 MPa) with internal packing layer to enhance gas-liquid mixing efficiency.
Release System: Core component responsible for instantaneously releasing dissolved air water at reduced pressure, generating microbubbles of 20-50 μm.
Flotation Tank: Includes contact zone for mixing and separation zone for scum floating and clean water separation.
Sludge Scraping System: Chain or rotary design with scraping efficiency of ≥95% and sludge moisture content of ≤90%.

II. Auxiliary Systems

Control System: PLC module automatically adjusts dissolved air pressure, reflux ratio (20-40%), and scraping frequency.
Chemical Dosing Device: Adds coagulants to enhance binding of flocs and bubbles.
Clean Water Circulation System: Recycles treated clean water (approximately 30%) for dissolved air water production.

III. Typical Configuration Differences

Models	Structural Features	Applicable Scenarios
Horizontal Flow	Rectangular housing, separate dissolved air system and scraper design	Large-volume industrial wastewater treatment
Circular/QFY	Central releaser + conical distributor, highly integrated	Small- to medium-scale oily/fibrous wastewater treatment
Upflow	Vertical water flow path, highly concentrated separation zone	Pretreatment of wastewater with high suspended solids concentrations

Features

High cost performance: Achieves best cost performance based on customer's product positioning and economic affordability.
Advanced design: Meticulous design concept with highly automated industrial equipment.
High adaptability: Meets current production requirements with room for future development.
Quality compliance: Strict adherence to ISO900 quality management system with controlled installation.