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Compact Clarifier Type KK
Application
Chemical detoxification and neutralization or biological cleaning processes of industrial effluent generates fine sludge through heavy metal hydroxide precipitation.
These sludge particles must be efficiently separated in a clarification stage prior to discharging the effluent via a polishing filter into a public sewer system.
At continuous flow treatment systems the compact clarifier is proved for many years.
The system is used for continuous flowing waste water with average sludge freight.
Process Characteristics
Precondition for a good settling behaviour is an optimal sludge conditioning. In the case of the presence of colloids performing substances in the waste water, a flocculation stage is pre-connected. Flake size and sedimentation time are increased by addition of a flocculant.
The addition of metal salts favours the settling of the sludge in the clarifying compartment in the case of strongly organically loaded sludge. In addition, the clogging of filter cloths in the chamber press is also prevented during the subsequent dewatering step.
A free in-flow in is guaranteed by the unique low height of the clarifier.
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Type
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KK
1
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KK
15
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KK
25
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KK
40
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KK
60
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KK
80
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Flow
ca. m³/hr |
5
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15
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25
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40
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60
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80
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No. of basin |
1
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1
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2
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2
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2
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3
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| Pre-sedimentation chamber |
1
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1
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Pre-sedimentation chamber
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1
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1
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Pre-sedimentation section
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1
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1
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1
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1
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Final clarification section
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1
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1
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1
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2
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Sludge extraction
| 2
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2
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4
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4
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6
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8
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Length
ca. mm
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3800
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4900
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6100
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5700
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8200
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11500
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Width
ca. mm
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1900
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2200
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2600
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2600
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2600
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2600
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Height
ca. mm
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1900
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2200
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2500
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3000
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3000
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3000
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Height of room min. ca. mm
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2800
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3500
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3500
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4500
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4500
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4500
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Description of plant
The compact clarifier consists essentially of the pre-sedimentation stage and the final clarification stage. In this way, an equilibrium is achieved during different loads and sludge ruptures avoided.
Neutralized effluent is fed from the continuous flow system into the stilling chamber of the pre-sedimentation section. Here the effluent is slowed down, allowing the most of the solids to precipitate on the bottom.
This pre-clarified effluent, which carries some of the remaining fines, then flows upward. From there the stream flows through an external pipe array into the final clarification chamber. This symmetrical pipe array ensures a uniform distribution across the bottom of the clarification chamber. Next the water rises across an inclined plate pack, where the solids can settle out and slide down tot he tank floor.
From here, the precipitated sludge is drawn off by the 'oscillating sludge extraction' device.
The plant is delivered connection completely. The combining pipelines only must be fit.
Advantages
- Detachment of sludge solids at high effluent lots/ or in the case of
limited floor space
- Short setting time
- Abidance of the limit values for deposable materials in the clarified
effluent
- High detachment of sludge through continuous thin sludge extraction
- Avoidance of sludge ruptures into the clarified effluent
- Small floor space and low headroom
- Complete pre-assembled and connection ready delivery to type
KK 15. For a simple installation is the pre-assembled compact
clarifier delivered from type KK 25 in transportation capable units
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German
Contact
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Data sheet Compact Clarifier Type KK