Sewage Treatment Systems

Midi Biofilter

How the Midi Biofilter works

Settled sewage flows by gravity from the Primary Settlement Tank into the baffle zone (6) of the Midi biofilter, where the irrigation pump (5) is used to spray the effluent over the media (3) via the distribution system (2). The effluent is recycled many times through the media to achieve the necessary standard. Eventually, the effluent is allowed to settle in the final settlement zone from where it is discharged at a standard to satisfy the Environment Agency.

The Secondary Sludge Return Pump (7) periodically removes any settled sludge and returns it back to the Primary Settlement Tank, where it is stored until removed by tanker.


Features and Benefits
of the Midi Biofilter

  • Produces high quality effluent 20mg/l BOD and 30mg/l SS.
  • High quality manufacture in accordance with our BS EN ISO 9001:2000 quality management system.
  • Optional sample chamber or final effluent pump station, if required.
  • Awarded a British Board of Agrément Certification.
  • Low maintenance costs, servicing twice a year, desludging every four months.
  • Discharge to watercourse or soakaway subject to consent from the relevant authorities.
  • Simple to install, to ground level if required.
  • Commissioning, servicing and maintenance service available. Installation also available.
mini biofilter
  1. Fan Housing
  2. Distributor
  3. Media
  4. Outlet
  5. Irrigation Pump
  6. Baffle Zone
  7. Secondary Sludge Return Pump
  8. Sludge Return Pipe
  9. Inlet

Dimensions:

septic tank conversion
mini 4pe
pump station
sewage treatment plant
UNIT C8 D8
P/E 15 20
(A) INLET 1500 1500
(B) OUTLET 1450 1450
(C) HEIGHT 2900 2900
(D) DIAMETER 1800 1800
 
UNIT E8 G8L
P/E 25 30
(A) INLET 1500 1500
(B) OUTLET 1450 1450
(C) HEIGHT 3150 3400
(D) DIAMETER 1800 1800
septic tank

Allerton reserves the right to alter the specifications and dimensions without notice.

ukas-logo