Product Information
This equipment builds on conventional coagulation and sedimentation by adding magnetic powder—basically using it as a ballast to speed up flocculation and settling. A magnetic ballasted coagulation and sedimentation system typically packs chemical dosing, mixing, flocculation, settling, and magnetic powder recovery into one skid or tank. Because the powder is dense and magnetic, fine flocs quickly clump into heavy clusters that settle much faster than usual. It works well for phosphorus-containing wastewater, surface water with high suspended solids, and anywhere you need fast turbidity removal.
Get a QuoteMagnetic Coagulation and Sedimentation Integrated Equipment|Magnetic Ballasted Coagulation and Sedimentation System
Working Principle
Raw water enters the mixing zone, where coagulant and magnetic powder are dosed and mixed fast so the powder grabs onto the pollutants. Next comes the flocculation zone, where flocculant is added and mixed slowly, building dense flocs around the magnetic powder cores. These flocs move into the settling zone and drop out quickly under gravity, with clear water flowing off the top. The settled sludge then goes to the recovery unit, where a magnetic separator pulls the powder out and sends it back upstream for reuse. The leftover sludge is discharged. Recovery typically runs above 95%, and that's what keeps operating costs under control.
Application Fields
1.Municipal wastewater upgrading: advanced phosphorus and suspended solids removal to hit Class 1A or stricter limits.
2.Black-odor water treatment: fast turbidity and phosphorus removal after river pollution is intercepted.
3.Industrial wastewater: suspended solids and heavy metals from printing and dyeing, papermaking, and electroplating.
4.Water supply treatment: emergency handling of high-turbidity surface water or routine turbidity reduction.
FAQ
Q1: How much magnetic powder can typically be recovered?
A: Usually over 95%, and a good magnetic separation setup can get to 98%. Recovery rate directly drives operating costs—lose more powder and you're buying more to make up for it. How well it recovers depends on powder particle size, how thoroughly the flocs break down, and the magnetic field strength of the separator.
Q2: How fast does a magnetic ballasted system settle compared with conventional sedimentation?
A: Thanks to the dense magnetic powder, flocs settle much faster. Surface loading rates usually reach 20–40 m³/(m²·h), several times what a conventional clarifier handles. That means a much smaller footprint—a real advantage for space-limited upgrade projects.
Q3: Does magnetic powder affect downstream processes?
A: With normal recovery, the amount left in the effluent is very low and won't noticeably affect downstream filtration or biological treatment. But if the recovery system has problems and powder escapes, sludge volume can go up. Keep an eye on powder loss during operation and top it up when needed.