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EKOFINN-POL Ltd
ul. Lesna 12
80-297 Banino - Poland

tel. +48 58 684 87 03
fax +48 58 684 99 98
e-mail: ekofinn@ekofinn.pl

SLUDGE handling

SCRUDRAIN® sludge thickener

SCRUDRAIN® thickeners with Archimedean screw manufactured by TEKNOFANGHI are the modern and economical solution for sludge thickening. They are mainly used to increase the sludge concentration before digestion reactors, thus enabling the use of smaller volumes. They are also placed before filter presses, belt presses and centrifuges to achieve higher sludge concentration before final dewatering. Other applications are to reduce the volume of sludge before being pumped into drying beds or being used in agriculture. This equipment can also be used in industrial applications, for example to remove coarse material such as fibres in the textile industry. SCRUDRAIN® thickeners are made of AISI 304 stainless steel and according to CE European standard.

 

 

 

 

The drum filter with Archimedean screw is rotated by an adjustable gear motor. Changing the rotation speed allows to control of the dewatering process – to adjust final slugde concentration to requirements and to optimize usage of polyelectrolite. Filter cloth is washed by high pressure spraying system, using treated effluent or filtrate. Filter cloth made of polyester has a long operation life, since it is not under any tensile stress, which is the case for belt thickeners.
SCRUDRAIN® thickeners can handle from a few m3/h to 120 m3/h, depending on type of sludge and the dry solid contentent. As a general guide, sludge with 0,5 - 3% can be thickened to 5 - 15% D.S.
SCRUDRAIN® are supplied entirely assembled and tested to reduce installation time and costs, complete with a control panel, a washing pump and all auxiliary equipment necessary for efficient operation. 
 

 

Comparing to traditional belt thickeners SCRUDRAIN® presents:
  • Higher efficiency of thickening process thanks to continuous mixing and reversing of sludge, which enables better draining of free water and interstice water.
  • Possibility of full hermetization of the unit.
  • Over 8 times longer operation life of the filter cloth due to lack of any mechanical stresses.
  • 10 times cleaner filtrate, since the washing of the filter cloth keeps solid inside the drum. Possibility of washing by only filtrate reduces operational costs.
  • No need for compressed air and no problem belt alignment.

 

Technical data

Type
AD 04C
AD 06C
AD 04D
AD 06D
AD 10D
Archimedean screw
1xΦ400mm
1xΦ600mm
2xΦ400mm
2xΦ600mm
2xΦ1000mm
Flow max [m3/h]
10-20
15-30
20-40
30-60
60-120
Thickener drive [kW]
0,35
0,75
0,70
1,50
3,0
Wash pump [kW]
0,75
0,75
2,2
2,2
3,0
Weight [kg]
350
450
550
800
2400

Max flow depends on the type of sludge and concentration of D.S.

 

Realizations, references