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DECA Clarifier
The
ODIS DECA Clarifier is an automatic hydraulic device, specially
designed to accelerate reactions through methodical recirculation
of the precipitates formed by the flocculent and influent water.
The DECA Clarifier operates continuously, to provide required
effluent water quality.
The
Clarifier consist of three chambers:
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Flocculation
(reaction) chamber is a central conical chamber, where influent
water ejected through special nozzle.
-
Intermediate
cylinder, to reach a good growth of the flocs.
-
Settling
chamber, where a separation between sludge and the effluent
water is achieved.
Principles
of Operation
The
water to be treated, mixed with flocculent, enter the DECA Clarifier
through a venturi type on-line flocculator placed in the bottom
of internal (reaction) chamber. The up-stream flow of flocculated
particles over close to the top to the intermediate cylinder chamber.
This way the liquid is forced to flow downward precipitating heavier
particles. The sludge deposited in the settling chamber returns
to the reaction chamber by induced flow. The resulting sludge
“enrichment” allows rapid flocculation and formation
of the dense precipitate.
The conical floor of the unit helps the sludge slide toward the
ejector for recirculation. Concentrated sludge is collected at
the bottom hopper and periodically released to drain.
The effluent flows over the truncated conical collector into the
intermediate tank for further treatment.
The DECA Clarifier has no moving parts.
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