A Practical Guide for Stable Discharge and Cost Control
Textile wastewater treatment is one of the most challenging tasks in industrial water management. High color, fluctuating COD, residual dyes, and surfactants make textile effluent difficult to treat consistently.
Polyacrylamide (PAM) is widely applied as a key flocculant in textile wastewater treatment systems. However, many textile plants experience unstable performance, excessive sludge, or rising chemical costs due to improper PAM selection.
This article focuses on how PAM actually works in textile wastewater treatment and what procurement teams should consider when sourcing it.
Why Textile Wastewater Requires PAM
Textile effluent commonly contains:
- Fine suspended solids
- Reactive and disperse dyes
- Auxiliary chemicals
- Large COD and color fluctuations
Traditional coagulants alone often fail to remove fine dye particles efficiently. PAM acts as a bridging agent, forming larger, faster-settling flocs.
How PAM Improves Treatment Performance
- Enhances floc size and strength
- Improves sedimentation or air flotation efficiency
- Reduces effluent turbidity and color
- Lowers sludge water content during dewatering
Procurement insight:
Correct PAM selection often reduces total chemical usage rather than increasing it.
Key Selection Criteria for Buyers
- Ionic type matched to wastewater composition
- Molecular weight suitable for particle size
- Stability under pH fluctuation
- Compatibility with PAC or alum
Jar testing and short on-site trials are strongly recommended.
Conclusion
PAM is a core chemical for textile wastewater compliance. Selecting the right PAM improves discharge stability and reduces long-term operating cost.
