The Rotating Disk Reactor consists of a teflon and viton disk containing recesses for six 1/2 inch (12.7 mm) diameter coupons. The removable coupons are manufactured from any machinable material. The bottom of the rotating disk contains a bar magnet to allow disk rotation to create liquid surface shear across surface-flush coupons. The entire disk containing the six coupons is placed in a 1000 ml glass side-arm reactor vessel. A liquid growth media/biocide/etc. is circulated through the vessel while the disk is rotated by a magnetic stirrer.

The coupon removed from the reactor vessel is then scraped to collect the biofilm sample for further study or imaging using microscopy.

Rotating disc reactors are designed for laboratory evaluations of biocide efficacy and biofilm removal, and performance of anti-fouling materials.

As described in ASTM Standard Method E2196-07: “Standard Test Method for Quantification of Pseudomonas aeruginosa Biofilms Grown with Shear and Continuous Flow using a Rotating Disc Reactor”.

Specifications of the Rotating Disk Reactor

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