Background
The COD of leachate from a landfill is as high as 5000 mg/L, and the suspended solids are 2000 mg/L. The traditional process pretreatment effect is poor.
Solution
- Process chain optimization: coagulation sedimentation + fiber ball filter (anti-pollution modified fiber ball) as pretreatment before biochemical treatment.
- Anti-pollution design: hydrophilic coating grafted on the surface of fiber balls to reduce organic adhesion.
Implementation effect
- COD reduction rate: COD is reduced by 40% in the pretreatment stage, and the suspended solids removal rate is greater than 90%.
- Subsequent treatment load: The sludge output of the biochemical pool is reduced by 35%, and the operation stability is significantly improved.
Key points
Fiber ball surface modification technology enhances anti-pollution ability and solves the problem of filter material compaction in high-organic wastewater.
The core value of fiber ball filter
- Flexible adaptation: Deal with complex water quality through material modification (such as high temperature resistance, hydrophilic coating) and process combination (such as flotation, ozone).
- Economical and efficient: High sewage interception and low backwashing frequency greatly reduce operating costs.
- Environmentally friendly and compatible: Reduce dependence on chemical agents and meet the needs of green production.
