The UVDB Verify audit and assessment is undertaken independently
by Achilles and provides a rigorous assessment of a company’s risk
critical issues with a particularly strong focus on demonstrable
compliance to Safety, Health, Environment and Quality
(SHEQ) requirements.

The assessment took place via a comprehensive two-day audit of
both on-site and off-site procedures. The detailed assessment
focused on evaluating both the company’s in house health,
safety, quality and environmental systems and also that of a
recently completed site installation where site method statements,
risk assessments, safe systems and site arrangements were assessed.

STEM Drive® is a range of patented fluidic sludge mixers for
anaerobic & aerobic digesters, holding tanks, detention tanks, and
storm tanks.

The STEM Drive® sludge mixer system maintains solids in
suspension, controls odours and eliminates stratification within
sludge tanks without ragging up.

No moving parts within the tank. External air, biogas, nitrogen or
steam power source.

Live tank installation an option.

STEM Drive Ltd ® are a UK company based in Scotland
who manufacture and install patented fluidic mixers and
mixing systems primarily for mixing biosolids, sludges
and slurries in the chemical process, food process and water
effluent treatment industries.

Our mixers are manufactured from stainless steel and have
no moving parts, are non-blocking and are maintenance free.