Marsh:ENCO

High performance, highly competitive sewage treatment plants for today’s cash-conscious market

Marsh sewage treatment plants are widely regarded as the most efficient, reliable and economical systems on the market.

Building upon the outstanding reputation of the Marsh:Ensign® range of sewage treatment plants, the Marsh:ENCO is a cost-effective alternative where competitive pricing is required.

Outstanding performance

Tested and approved to BSEN12566-3/A1:2009 all ENCO units provide treatment well within national consent requirements.

Unrivalled choice

Ranging in size from 6 to 16PE and with a wide range of ancillaries, almost all site, consent and budget requirements can be met by units from the ENCO range.

Why choose the Marsh:ENCO?

The Marsh:ENCO provides an economical alternative to standard and ultra sewage treatment plants. End users, merchants and installers alike recommend the Marsh range due to its ease of installation, reliability, and cost-effective operation and maintenance. All backed by technical support from local contacts.

Operating principle

In addition to anaerobic digestion taking place in the primary settlement chamber the Ensign:Ultra unit allows the clarified water to pass into a second ‘aeration’ chamber 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 . The final effluent is then discharged to the drainage field or watercourse.

KEY

Inlet
Primary settlement chamber
Aeration chamber
Low-energy compressor
Compressor housing – internal or external options available
PVC pressure pipe/diffuser(s)
Securing mesh
Final settlement chamber
32mm sludge return
Outlet
Standard impermeable lid
Stabilising feet
Unique ‘keying-in’ lip

Benefits

1 Inlet
Optional risers to increase invert depth are available.

2 Primary settlement chamber

3 Aeration chamber

4 Low-energy compressor
Near silent compressor ensures minimal running, maintenance and servicing costs.

5 Compressor housing – internal or external options available
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 PVC pressure pipe/diffuser(s)
Provides a protective conduit for the air diffuser line. Can be easily removed for maintenance and cleaning.

7 Securing mesh
Retains media in aeration chamber during transportation and handling, and in the event of flooding.

8 Final settlement chamber

9 Sludge return (32mm)
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.

10 Outlet
Optional pumped outlets are available.

11 Standard impermeable lid
Impermeable lid improves strength and durability whilst blending into the surrounding environment.

12 Stabilising feet
Stabilising feet prevents the tank from rolling and allows safe and steady transportation and installation.

13 Unique ‘keying-in’ lip
Assists anchoring into granular or concrete surrounds.

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 securing mesh to ensure no migration during handling or potential flooding.

Integral lifting eyes
For safe and secure handling onsite.

Specifications

Specifications table
Model (pop)	Length	Width +/-50mm	Height +/-50mm	Inlet invert +/-50mm	Inlet dia	Outlet invert	Outlet dia
ENCO 6	2602	1650	1935	550	110	625	110
ENCO 8	2602	1650	1935	550	110	625	110
ENCO 10	2602	1650	1935	550	110	625	110
ENCO 12	2860	1912	2139	550	110	625	110
ENCO 16	2860	1912	2139	720	110	800	110