Shallow Ensign:Ultra™

Advanced sewage treatment plant (6-35PE)

Shallow Ensign Ultra sewage treatment plants

Common sewage treatment plants on the market often exceed 2.3m high. Marsh Industries offer a range of Shallow Ensign Ultra sewage treatment plants from 4-35PE that are only 1.6m in height, meaning installation is not only possible, but easier and safer too.

*Shallow Ensign’s are often favoured when hard rock site conditions mean deeper alternatives, involving costly and time-consuming excavation.

Shallow Ensign Ultra sewage treatment plants Vs Normal sewage treatment plants

Marsh Ensign

The Marsh Ensign is widely regarded as one of the most efficient, reliable and economical sewage treatment plants on the market.

The standard Ensign has been adapted to improve reliability and the Ensign:Ultra now brings unique enhancements to further improve noise level, treatment efficiency and final effluent quality.

Class leading performance

CE ApprovedTested and approved to BSEN12566-3/A1:2009 all Ensign units provide treatment well within national consent requirements. Published test results of 11.5:19.2:8.4mg/ltr (BOD:suspended solids:ammonia), with influent concentrations on test higher than those chosen by most competitor plants, effectively equates to 97% pollutant removal.

Unrivalled choice

Ranging in size from 4 to 50 PE in Ultra, Standard and Shallow versions of each, and with a wide range of ancillaries, almost all site, consent and budget requirements can be met by units from the range.

Why choose the Marsh Ensign?

End users, merchants and installers alike recommend the Ensign range due to its ease of installation, reliability, and cost-effective operation and maintenance. All backed by technical support from local contacts.

Shallow Ensign Ultra sewage treatment plants

In addition to anaerobic digestion taking place in the primary settlement chamber [2] the Ensign:Ultra unit allows the clarified water to pass into a second ‘aeration’ chamber [3] where it is treated to remove the dissolved constituents. Here aerobic bacteria, supported by diffused air and mobile media, ensures full treatment is achieved before the treated effluent and ‘sloughed off’ bacteria flows to a final settlement chamber [10]. The final effluent is then discharged to the drainage field or watercourse via a Polylok filter.

KEY

  1. Inlet
  2. Primary settlement chamber
  3. Aeration chamber
  4. Compressor with alarm
  5. Compressor housing (External or internal options)
  6. RCD / Electrical connection
  7. PVC pressure pipe for diffuser(s)
  8. Bio-media
  9. Stainless steel mesh
  10. Final settlement chamber
  11. Sludge return
  12. Unique Polylok tertiary filter (Ensign:Ultra units)
  13. Outlet
  14. Access lid
  15. Integral lifting eyes
  16. Stabilising feet
  17. Unique ‘keying-in’ lip

Ensign:Ultra operating principal

1. Inlet with ‘Forsheda seal’
Forsheda seal provides flexibility in the joint for easier installation.
Optional risers to increase invert depth are available.

4. Advanced compressor with alarm
Near silent compressor ensures minimal running, maintenance and servicing costs. Integral alarm detects low pressure in air line.

5. Compressor housing (External or internal options)
The compressor can be housed internally or externally with no difference in cost. External recommended to increase compressor life, and supplied as standard on 4PE, shallow and pumped outlet versions.

6. RCD / Electrical connection
The RCD box provides easier installation and proveds a higher degree of safety.

7. PVC pressure pipe / diffuser(s)
Provides a protective conduit for the air diffuser line. Can be easily removed for maintenance and cleaning.

8. Bio-media
High specification bio-media (310m3 per m2) and membrane diffusers ensure even circulation to eliminate ‘dead spots’. The bio-media is contained by a stainless steel securing mesh to ensure no migration during handling or potential flooding.

9. Stainless steel mesh
Retains media in aeration chamber during transportation and handling, and in the event of flooding.

11. 32mm sludge return
Larger diameter sludge return prevents the possibility of blockages and improves system circulation. Provides higher effluent quality whilst balancing flow over a 24 hour period or periods of intermittent use.

12. Unique Polylok tertiary filter (Ensign:Ultra unit only)
The Polylok tertiary filter reduces suspended solids and BOD by a further 40% helping to extend drainage field life.

13. Outlet with ‘Forsheda seal’
Forsheda seal provides flexibility in the joint for easier installation.
Optional pumped outlets are available.

14. Impermeable lid
Heavy duty lid/frame improves strength and durability whilst blending into the surrounding environment.

 

Ensign:Ultra operating principal

Model (pop) Length Width +/-100mm Height Inlet invert Inlet dia Outlet invert Outlet dia
6 2860 1912 1600 500 110 575 110
8 2860 1912 1600 500 110 575 110
10 2860 1912 1600 500 110 575 110
12 2860 1912 1600 500 110 575 110
16 3400 1912 1600 500 110 575 110
20 4200 1912 1600 500 160 575 160
25 4200 1912 1600 500 160 575 160
30 5200 1912 1600 500 160 575 160
35 5200 1912 1600 500 160 575 160

Larger population sewage treatment plants may be supplied as multiple tank configurations.
For precise tank sizes and configurations, please contact Marsh Industries.
All dimensions in mm.


Marsh Ensign range

Marsh domestic brochure

Installation/technical manual

Ensign™
CE Certificate

Carbon vents/covers
Carbon vents and covers
Elevated compressor housings
Distribution boxes
Distribution boxes
Anti-flood valves
GRP kiosks