Principle

The printing and dyeing wastewater first enters a mixing sedimentation tank or dissolved air flotation (DAF) unit to remove turbidity and suspended solids.

It then flows into the DAF effluent tank and is pumped to a multi-media filter for further turbidity and solids removal. The multi-media filter outlet enters the ultrafiltration (UF) system, which removes fine suspended solids, partial color, and COD to meet the inlet requirements of the reverse osmosis (RO) system.

The RO system retains salts, COD, and color, producing effluent that meets printing and dyeing water quality standards. The concentrated water is further treated before being discharged in compliance with regulations.

Process Flow

Treated Wastewater
→
Sedimentation Tank
DAF Tank
→
Multi-media Filter
→
Precision Filter
UF System
→
Precision Filter
→
RO System
→
Reused to Production Workshop

Features

Wide Application
Existing & New Systems
Stable Operation
Anti-Fluctuation · Membrane Protection
Reliable Protection
RO Safeguard · Consistent Quality

Principle

This is an advanced membrane filtration technology that combines new ultra-low pressure submerged hollow fiber membrane modules with continuous membrane filtration.

The membrane is placed in a tank filled with the feed water. Through negative pressure suction generated by a pump and utilizing atmospheric pressure, water permeates through the membrane surface and is drawn from the inside of the hollow fibers, achieving filtration and purification.

Process Flow

Treated Wastewater
→
Submerged Ultrafiltration (SUF)
→
RO System
→
Reused in Production Workshop

Features

Flexible
Existing & New Projects
Tolerant
Poor Secondary Effluent Quality
Efficient
High Automation · Low Energy · Easy Operation

Water treatment needs? We’ve got you covered.