Biodigester emptying procedures

BIODIGESTER T RANGE

MK3 T Range Biodigester 2013–Current

  1. First remove crust from Outer Settlement Chamber
  2. Second empty from Central Treatment Chamber avoiding damage to air diffuser(s) pipework
  3. Leave a little sludge

Note: Plastic Media Strings are tethered to the inside walls of the Inner Treatment Chamber

MK2 T Range Biodigester 2003-2013

  1. First remove crust from Outer Settlement Chamber
  2. Second empty from vertical orange pipe, 150mm (6”) diameter, within Central Treatment Chamber. Note: This pipe has holes in it that are smaller than the mobile plastic media
  3. Leave a little sludge

MK1 T Range Biodigester 2001-2003

  1. First remove crust from Outer Settlement Chamber
  2. Second empty from Central Treatment Chamber avoiding removal of mobile plastic media
  3. Leave a little sludge

BIODIGESTER BONUS Mk 2

Mk 2 Submerged Aerated Filters (SAF) 1997-Current

Bonus Biodigesters are supplied with a new Primary Settlement Tank or are added
on to an existing tank.

  1. Empty all stages of the Primary Settlement Tank taking the crust off first leaving a little sludge
  2. The Biodigester Bonus has a Final Settlement Chamber with an automatic sludge return/recycle pump. This chamber does not need to be emptied on a regular basis but may occasionally need to be emptied and cleaned

BIODIGESTER STANDARD Mk 2

Mk2 Biodigester Standard Submerged Aerated Filter (SAF) 1997–Current

  1. Empty both Primary Settlement Chambers taking the crust off first and leaving a little sludge.
  2. The Biodigester Standard has a Final Settlement Chamber with an automatic sludge return/recycle pump. This chamber does not need to be emptied on a regular basis but some may occasionally need to be emptied and cleaned.

BIODIGESTER BONUS Mk 1

Mk1 Biodigester Bonus Suspended Media Pack 1993-2001

Supplied with a separate Primary Settlement Tank or added to an existing tank

  1. Empty all stages of the Primary Settlement Tank taking the crust off first and leaving a little sludge

Two chamber Suspended Media Pack with pump.

  1. Empty Pump Chamber adjacent to the pump.
  2. Empty Final Settlement Chamber under media pack adjacent to outlet pipe.

Mk1 Biodigester Standard Suspended Media Pack 1993–2001

Four chamber Suspended Media Pack with pump

  1. Empty the two Primary Settlement Chambers first removing any crust and leaving a little sludge
  2. Empty Pump Chamber adjacent to the pump
  3. Empty Final Settlement Chamber adjacent to outlet pipe.

BIODIGESTER HB

Biodigester HB 2016-Current

  1. Empty both chambers leaving a little sludge in the first Aeration chamber.

BIODIGESTER INDUSTRIAL

Biodigester Industrial 2006–Current

Refer to BES for specific details of each project.

BIODIGESTER EK Submerged Aerated Filter

Biodigester EK Standard Design & Build 2012–Current

  1. Empty all Primary Settlement Chambers taking the crust off first and leaving a little sludge.
  2. The Biodigester Standard has a Final Settlement Chamber with an automatic sludge return/recycle pump. This chamber does not need to be emptied on a regular basis but may occasionally need to be emptied and cleaned.

BIODIGESTER EK T RANGE

Biodigester T Range EK 2012-Current

Two Chambers. Total Aeration and Final Settlement.

  1. Empty both chambers leaving a little sludge in the first Aeration chamber.

BIODIGESTER EK SMP Suspended Media Pack

Biodigester EK Suspended Media Pack (SMP) 2012-Current

The frequency for routine emptying of the Primary Settlement Tank(s) is dependent upon each project design. Refer to specific instructions issued. Periodic emptying and cleaning of the Irrigation Sump and Final Settlement Tank also required.

QUICK LINKS

GET IN TOUCH

Got a question? Need to find out more?