Puraflo Wastewater Treatment Systems

Please click the thumbnail to your left to view the full size image. Step by step instructions and photos show you how to do a Typical Puraflo Installation. Click here for the Installation Photo Gallery

Key Benefits of the Puraflo System

• Small footprint required
   
• Low operating costs
   
• Low maintenance costs
   
• Straight forward installation of packaged system
   
• Odour free
   
• Ideal for Holiday home applications
   
• 100% natural system - no additives
   
• High quality performance
   
• 99.9% removal of total and fecal coliforms
   
• 100% removal of viruses
   
• Up-grades Old Systems
   

Typical Site conditions for the Puraflo System

• Fast Percolation rate Soil conditions i.e. Vp < 15 secs/mm
   
• Slow Percolation rate Soil conditions i.e. Vp > 100 but less than 140 secs/mm
   
• Very Slow Percolation rate Soil conditions i.e. Vp > 140 secs/mm
   
• Shallow depth to ground water
   
• Shallow depth to restrictive layer or rock
   
• In flood zones the modules can be elevated on a platform under the house & piped to ground
   
• Modules can be sunk level into the ground ( if site conditions allow )
   
• Wooded areas, small & sloping sites can be used
   
• A smaller percolation area is used due to the pre-treatment

Useful Applications for Puraflo System

• Discharges in vicinity of bathing waters, shellfish waters, groundwaters / abstraction waters
  - high level of treatment, disinfection & ammonia removal
   
• Discharges to surface waters
  - high level of environmental protection
   
• Discharges to soakaways where the percolation rate is too fast Vp < 15 secs/mm
  - high level of environmental protection
   
• Discharges to soakaways where the percolation rate is too slow Vp > 100secs/mm
   
• Holiday Homes
   
• Seasonal Lets
   
• Can replace Raised Mound Systems

For further information please refer to:-

Section 3.9.2 of the Scottish Building Standards TECHNICAL HANDBOOK ref:
http://www.sbsa.gov.uk/th_pdf/bsthd-3.pdf

AND

Section 3.1 of SEPA’s TECHNICAL GUIDANCE MANUAL: Regulating Private Sewage Discharges
http://www.sepa.org.uk/pdf/guidance/water/discharge/private_sewage_discharges.pdf

Puraflo Wastewater Treatment Systems

	Distribution Pipe work inside Module
	Pipe work covered with Peat Fibre to prevent odours
	Module as delivered to site

A Typical Puraflo Installation:-

Please view the Puraflo Installation Photo Gallery for a typical Puraflo installation.

Treated Effluent Dispersal Options

Most common:

• Piped from the Puraflo modules direct to watercourse or
   
• Surface discharge i.e. soakaway
   

Other options:

• Spray Irrigation
   
• Pipe from the Puraflo modules to shallow trenches under gravity
   
• Collect and pumped to trenches under pressure (LPP, drip or shallow pipe)

Average 10 year Performance

Other Applications:-

1. Puraflo Vs Raised Mound Systems

Tertiary Polishing after Treatment Plant e.g. Biodisc

BOD – 5 mg/l Total Suspended Solids – 5 mg/l

The Puraflo Modules can be used as Tertiary treatment in place of the Raised Mound system - providing an extremely high level of treatment.

Consider the following:

1. Improved aesthetics

2. Smaller Footprint

3. Separation Distances maintained

4. High level of treatment

5. Easy to Install

6. Easy to operate

7. Easy to maintain

8. Easy to upgrade

2. Holiday Home / Seasonal Let Applications

The Puraflo system is ideal for Intermittent & Seasonal use applications.

During the period of reduced or no wastewater flow:-

• Bacteria and fungi form spores
   
• Non spore forming organisms - remain in dormant inactive state
   
• Some M.O.’s and higher life forms persist and feed on residual biomass
   
• Peat Fibre remains as effective physical and chemical filter

When there is a Fresh supply of wastewater:-

• Micro-organisms quickly resuscitate
   
• System quickly reactivates and becomes fully efficient
   
• Minimum time lag