
When a quantity of fuel is found to be microbiologically contaminated an R&R machine can be used to pump the fuel from the tank, through the three-stage process and return it to the tank. PureFuel Technologies' R&R machines are portable and capable of recirculating and recovering up to 40,000 litres of fuel.
Stored biofuels require regular testing to be able to protect against the effects of microbial contamination. Periodic ATP testing is an affordable means of checking fuel condition and, if test results show more than 10pg/ml of cATP then the fuel stock is at risk from deterioration and there is a risk of problems occurring in machines that use the contaminated fuel. Processing the fuel through an R&R machine will recover the fuel stock to a clear, bright and safe condition and protect it from microbial contamination for up to 28 days.
Tanks can be permanently protected from any incoming microbiologically contaminated fuel by fitting a PureFuel Conditioner on the inlet. Equipment or customers supplied by the tank can be permanently protected with a Conditioner on
the outlet.
Air and condensation will of course continue to enter the tank through the vent so fuel residue that was last passed through a PureFuel Conditioner more than 28 days earlier is at risk from
re-contamination. It is therefore important to regularly test static storage tanks and periodically use R&R to clean and protect the fuel stock.
PureFuel Technologies recommends a structured fuel management regime with regular ATP testing to establish when R&R is necessary and to protect tank inlets and outlets
with Conditioners.

