Synthetic Polymer Chemistry
Anionic Polyacrylamide (PAM)
Anionic Polyacrylamide (PAM) is a synthetic petroleum-derived polymer composed of acrylamide subunits used as a flocculant and soil binder in civil construction.
Physics & Chemistry Root Cause
While effective at binding fine clay particles, unreacted acrylamide monomer residue (C3H5NO) poses neurotoxic and aquatic toxicity risks regulated under EPA SWPPP guidelines. Botanical hydrocolloids provide a non-toxic, microplastic-free alternative.
Job-Site Operator Action Plan
1
Verify Tank Agitator Speed Before Pouring
Set mechanical paddle agitator to low-to-medium speed (100–150 RPM). Never dump dry polymer into static or un-recirculated tank water.
2
Utilize Sifting Technique Across Recirculating Vortex
Pour powder steadily over 60–90 seconds across the recirculating stream. OHRA's engineered mineral particle spacers will physically isolate polymer grains during hydration.
3
Monitor Recirculation Pump Pressure
Ensure discharge pressure remains steady (40–60 PSI). If pressure fluctuates, engage full agitation for 2 minutes to break down any transient air pockets.
Equipment & Component Impact Matrix
| Component | Legacy Binder Impact | OHRA Polymer Performance |
|---|---|---|
| Recirculation Pump Impeller | Severe friction cavitation & seal wear | Acts as liquid mechanical lubricant |
| Turret Spray Nozzle | Frequent clogging from gel lumps | Eliminated fisheye lumping, continuous flow |
| Hose Pressure Head Loss | High friction resistance over 200ft+ hose | Smooth laminar flow reduction |