APEX Biodigester sewage treatment plants are made from corrosion-free materials for off-mains sewage treatment where septic tanks are unsuitable. Designed for intermittent, low, or seasonal flows, these plants use a single-tank system with automatic settled sludge return and achieve high effluent quality with very low electricity use. EN 12566-3 certified and suitable for 6 to 300 people.

  • Sewage treatment plant for off-mains sites with fluctuating or low flows
  • Automatic settled sludge return keeps bacteria active during absences
  • Single-piece tank design eliminates leakage risk
  • Very low electricity consumption
  • Quiet operation with no internal moving parts
  • 10-year tank warranty
  • May discharge to watercourses under General Binding Rules
  • Can be installed above ground or to suit any drain depth

Applications

  • Campsites, caravan parks, holiday parks
  • Single residential properties
  • Hotels and restaurants
  • Industrial or commercial complexes

Performance

Effluent quality: 11mg/litre BOD, 7mg/L ammoniacal nitrogen (EN 12566-3 test average)

96.2% treatment efficiency ratio (EN 12566-3 2005)

Can be left up to 4 months without restart

Installation

Requires concrete backfill

Easy installation by any competent contractor

No specialist equipment needed

Product accreditations

EN 12566-3 certified

Complies with BS 6297

Warranty

10-year tank warranty

2-year blower warranty

Maintenance

Emptying interval: 6–12 months

Minimal servicing required

Sustainability

Very low electric consumption

Recyclable construction materials