Biodigester Products Ltd | Designers and manufacturers of wastewater treatment systems
Breaking News: Our newly patented T range doesn't require emptying for at least 3 years (if at all)! Contact us for more information.
How to empty your Biodigester
Your place for all the information on how to empty your Biodigester.
T Range
T Range
MK3
2013–Current
1. Remove crust from Outer Settlement Chamber.
2. 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.
T Range
MK1
2001–2003
1. Remove crust from Outer Settlement Chamber.
2. Empty from Central Treatment Chamber avoiding removal of mobile plastic media.
3. Leave a little sludge.
T Range
MK2
2003–2013
1. Remove crust from Outer Settlement Chamber.
2. 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.
Biodigester Bonus Mk I
Bonus Range
Mk1 Biodigester Bonus Suspended Media Pack
1993-2001
Supplied with a separate Primary Settlement Tank or added to an existing tank.
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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.
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Empty Pump Chamber adjacent to the pump.
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Empty Final Settlement Chamber under media pack adjacent to outlet pipe.
Bonus Range
Mk1 Biodigester Standard Suspended Media Pack
1993–2001
Four chamber Suspended Media Pack with pump
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Empty the two Primary Settlement Chambers first removing any crust and leaving a little sludge.
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Empty Pump Chamber adjacent to the pump.
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Empty Final Settlement Chamber adjacent to outlet pipe.
Biodigester Bonus Mk II
Bonus Range
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.
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Empty all stages of the Primary Settlement Tank taking the crust off first leaving a little sludge.
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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 II
Standard Range
Mk2 Biodigester Standard Submerged Aerated Filter (SAF) 1997–Current
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Empty both Primary Settlement Chambers taking the crust off first and leaving a little sludge.
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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 HB
HB Range
Biodigester HB 2016-Current
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Empty both chambers leaving a little sludge in the first Aeration chamber.
Biodigester Industrial
Industrial Range
Biodigester Industrial 2006–Current
Refer to BES for specific details of each project.
EK Submerged Aerated Filter
EK Range
Biodigester EK Standard Design & Build 2012–Current
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Empty all Primary Settlement Chambers taking the crust off first and leaving a little sludge.
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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.
EK T Range
EK Range
Biodigester T Range EK 2012-Current
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Two Chambers. Total Aeration and Final Settlement.
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Empty both chambers leaving a little sludge in the first Aeration chamber.
EK SMP Suspended Media Pack
EK Range
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.
