EM22 - CLARIFLOCCULATOR WITH TORSION TRESTLE AND TURBINE FOR SLUDGE RECYCLE
| Application | Clarifying of primary waste water. |
| Characteristics | The equipment consists of a mixing one, inside the central cylinder, a flocculation zone, inside the cone, and a torsion trestle which moves the scrapers to convey the settled sludge to the central drain well. |
| Operation | The sedimented sludge flocs are kept in suspension by a turbine, recycled and mixed with the water to be treated. The solids in the incoming water settle over the existing recycled sludge flocs. The new flocs volume increases and they tend to sediment more easily. |
| Materials | Hot dip galvanized carbon steel or Stainless steel. |
| Installation | In a concrete tank. |
| Tank diameter | From 8 to 60 m. |
| Advantages | High efficiency of sedimentation. |
| Optional | Structural steel radial ditches. |
OUTLINES OF THE PROCESS
The flocculation must occur in a moderate and not turbulent way.
This will help the sludge flocs creation and ageing.
OPERATION DESCRIPTION
In the Clariflocculator with torsion trestle and turbine, the suspension is flocculated inside the flocculation cylinder by means of a variable-speed turbine.
The reagents are added directly into the water to be treated, before it enters the clariflocculator.
The flocculation, which takes places outside the cylinder but inside the cone (bell), makes the suspended particles gather and grow.
The sludge in suspension, which comes out of the flocculation cone, tends to sediment.
The clarified water is collected in the upper part through radial or circular ditches.
The sludge sedimented on the bottom is conveyed to the central drain well by some scrapers.
In the Clariflocculator:
• the flocculation chamber is inside the cone (bell) but outside the cylinder which contains the turbine
• the sludge settles under the flocculation cone
The function of the turbine is:
• mixing the sludge flocs slowly and making them become larger
TECHNICAL DATA
| 1.1 | Design flow rate | : m³/h | (*) |
| 1.2 | Flocculation cylinder useful volume | : m³/h | |
| 1.3 | Flocculation contact time | : min. | |
| 1.4 | flocculation turbine min-max speed | :r.p.m. |
PECULARITIES
The Clariflocculator mod. EM22 has a rotary torsion trestle with two scraper arms.
The flocculation turbine is in the central cylinder.
CLARIFLOCCULATOR ACELATOR TYPE
ECOMACCHINE in November 2021 has completed the supply of a clariflocculator "ACELATOR" type for the treatment plant of RAVENNA SERVIZI.
The unit can be utilized for clarifying or for clarifying and decarbonating the inlet water with lime.
The unit is able to treat up to 1,200 m3/hr with a maximum torbidity of 10 NTU at outlet.
REVAMPING OF PRODUCTION WATER TREATMENT AND RE-INJECTION
ECOMACCHINE in November 2021 completed and shipped a Dissolved Gas Flotation (DGF) package complete with saturation unit.
CLARIFLOCCULATOR ACELATOR TYPE
ECOMACCHINE in November 2021 has completed the supply of a clariflocculator "ACELATOR" type for the treatment plant of RAVENNA SERVIZI.