Marsh:Standard sewage treatment plants

Marsh:Standard cost-effective sewage treatment systems provide biological treatment to off-mains wastewater on large residential, commercial, industrial and leisure sites ranging from 50-300+PE.

Proven reliability of the simple but effective Submerged Aeration Filtration (SAF-MBBR) system offers both operating and financial benefits when compared to more complex and expensive alternatives that require frequent servicing and maintenance to sustain performance.

Operating principle

KEY

  1. Inlet
  2. Primary chamber
  3. Aeration chambers
  4. Diffusers
  5. Final (or ‘humus’) chamber
  6. Outlet
  7. Recirculation to primary chamber

8. Turret guard (optional)

9. Lockable manhole covers

10. High level alarm (optional)

11. Compressors

12. GRP kiosk

Benefits

Plant sizing
Designed to BS12255, systems are available from 50-300+ PE in sizes ranging from Ø2.5-3m satisfying the demands of virtually all site conditions.

Class-leading effluent quality
Designed to British Water loadings (150litres per person, 60mg BOD litre and 8mg/litre Ammonia) ensures effluent discharge is well within national consent standards.

Cost-effective operation and maintenance
Systems have no internal moving parts and require minimal ongoing maintenance.

Heavy duty shell as standard
Structurally sound and built to last. Enables easy installation in all ground conditions.

High media surface area
High specification bio-media (310m3 per m2) and membrane diffusers provide even circulation to eliminate ‘dead spots’.

Low energy compressor(s)
Easily accessible low energy compressor for minimal running, maintenance and servicing costs. Integral alarm detects low pressure in air line.

Internal recirculation
Continues the treatment process to provide higher effluent quality whilst balancing flow over 24 hour period or periods of intermittent use.

Lockable manhole covers
600mm lockable manhole covers provide significant strength and durability, and helps to reduce possible odours.

Health and Safety considerations
The Marsh:Standard can be fitted with many safety features including turret guards, failure alarms for compressor components and high level alarms.

Optional extras
Optional extras include carbon covers for odour control, turret guards for additional safety, polylok filters to further reduce suspended solids, high level alarms and telemetry for monitoring, and risers/pumped outlets for deeper installations.

Manufactured in the UK
All units are manufactured in our twin manufacturing plants at Kettering and Bridgwater. The tanks are constructed using GRP (virgin unfilled resin – no ‘fillers’ such as chalk) providing consistent wall thickness ensuring superior structural strength and durability.

 

Specifications

Marsh:Standard specifications
Model up to Width Ø
+/- 50mm		 Length
+/- 50mm		 Height
+/- 50mm		 Inlet invert Inlet Ø Outlet invert Outlet Ø Turrets x 4 Ø Desludge (days)
50-55PE 2500 4160 2950 600 160 800 160 600 90
60PE 2500 4470 2950 600 160 800 160 600 90
70PE 2500 5350 2950 600 160 800 160 600 90
85PE 2500 6000 2950 600 160 800 160 600 90
100PE 2500 6950 2950 600 160 800 160 600 90
125PE 2500 8550 2950 600 160 800 160 600 90
150PE 2500 10200 2950 600 160 800 160 600 90
200PE 2500 13400 2950 600 160 800 160 600 90
250PE 3000 9650 3450 600 160 800 160 600 60
300PE 3000 9650 3450 600 160 800 160 600 45