Sewage Treatment Plant Performance Comparison (EN 12566‑3 Certified Results)

Brand / Model	BOD (mg/L)	SS (mg/L)	NH₄‑N (mg/L)
VORTEX	7.3	15.2	0.4
Klargester Bio‑Ficient	20	27	0.4
Balmoral Hydroclear	11	19	4.5
Condor ASP	8	12	7.7
Tricel	11	16	8

 

VORTEX delivers among the best pollutant reduction — especially for ammonia and suspended solids — significantly below regulatory limits (BOD ≤ 20, SS ≤ 30, NH₄‑N ≤ 20)

🚰 Built-in Design Advantages

VORTEX

 

Unique Vibro‑Screen™ debris filter removes wipes/sanitary products before the digester.

Continuous sludge recycling: live bacteria and crust are returned into the digestion zone, reducing manual desludging.

Adjustable aeration valve adapts capacity to occupancy (e.g. works efficiently for 1–6 people on a 6‑PE plant)

Low energy consumption (~30 W/h intermittent running) — lowest among UK electric plants, doable with solar power in off‑grid setups.

20-year tank warranty, EN 12566‑3 certified, and Environment Agency approved for direct discharge in many cases.

Klargester and Other Brands:

Many Klargester units (e.g. Biodisc, Envirosafe, Bio‑Ficient) show higher BOD and SS levels in testing.

Some systems (e.g. conventional ASP units) use coarse bubble diffusers and require large blowers; inefficiency in oxygen transfer can lower performance.

Sludge crust removal must often be done manually or with engineer help — no automatic recycling mechanism like VORTEX.