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| Accumulated sand breeds filamentous bacteria that cannot be controlled by the operator. |
| Waste Water Treatment Plant WITH Sand Accumulation |
| Waste Water Treatment Plant WITHOUT Sand Accumulation |
A. Arrows indicate mixing zone
with sand accumulation.
B. Foamline on surface with sand
accumulation will sometimes cover
3/4 of the surface of mixing tank.
C. Burst of air on surface indicates
the presence of sand around
diffusers.
D. With sand accumulation, this area
is over aerated and causes
Pin Floc in clarifier, thus raising
total suspended solids in effluent.
with sand accumulation.
B. Foamline on surface with sand
accumulation will sometimes cover
3/4 of the surface of mixing tank.
C. Burst of air on surface indicates
the presence of sand around
diffusers.
D. With sand accumulation, this area
is over aerated and causes
Pin Floc in clarifier, thus raising
total suspended solids in effluent.
A. Arrows indicate mixing zone
without sand accumulation.
B. With sand and grit removed,
foamline is reduced substantially
due to proper mixing.
C. Notice location of air burst on
surface indicating lack of sand
around diffusers.
D. With sand removed, clarifier is fed
with healthy bacteria that settle
rapidly.
without sand accumulation.
B. With sand and grit removed,
foamline is reduced substantially
due to proper mixing.
C. Notice location of air burst on
surface indicating lack of sand
around diffusers.
D. With sand removed, clarifier is fed
with healthy bacteria that settle
rapidly.
| A |
| B |
| C |
| D |
| D |
| A |
| C |
| B |
| A |
| B |
| C |
| D |
| D |
| C |
| B |
| A |
| vs. |
| Sand Accumulation |
| Sand Accumulation |
| No Sand Accumulation |
| No Sand Accumulation |
PROTECTING TOMORROW'S ENVIRONMENT TODAY!
| Gladly accepted for your convenience |