Procedures of Effluent Treatment Plant (ETP) for Dyeing Knitted Fabrics

Effluent Treatment Plant (ETP) is used to purify the waste water produced during dyeing knitted fabrics. Nowadays, people are trying to protect the environment from the harmful effect of effluent. Different waste water has different characteristics.
The followings are the procedures of effluent treatment:
Effluent from different manufacturing industry

Primary Filtration

Cooling and Mixing

Neutralization (by acid or alkali)

Chemical Co-agulation

Settling and Separation of Sludge

Pressure Filtration


Primary Filtration: Primary filtration is the first step of effluent treatment plant. It removes solid waste particles.

Cooling and mixing: Different types of effluent are mixed and cooled down with the assistance of motor.

Neutralization tank: Effluent is transferred to neutralization tanke for neutralization by pump. Acid or alkali is used to neutralize the effluent. A PH meter placed inside the neutralization tank can show PH value of effluent.

Co-agulant: Co-agulant is added with the effluent.

Settling Tank: Effluent is separated from water in settling tank.

Pressure Filter: A certain amount of pressure is created for filtration.

Discharge to Drain: the effluent having been purified can be discharge to environment directly.


Zhenlihua products range from Single Circular Knitting Machines, Double Circular Knitting Machines, Open Width Circular Knitting Machines, Single Mini Jacquard Knitting Machines, Double Mini Jacquard Knitting Machines and Single computerized jacquard knitting machines, Double computerized jacquard knitting machines, Knitting Machine Spare Parts, Knitting machine Accessories, Knitted Fabrics, etc.

You may also like...

Leave a Reply