Industrial Wastewater Treatment | Protect RO | Filtra-Systems
TIRE MANUFACTURER - RO PROTECTION FILTER
Water is boiled (in a boiler) and utilized in curing equipment to manufacture tires. This hot water does not contact the tire directly, but does contact the curing equipment. Once curing is complete the hot water (containing oil and grease) is sent to waste.
Originally, their process flow sheet was to filter condensate water with Bag Filters (10 and 1 micron)-> Nano Filter (0.01 micron)-> Reverse Osmosis (0.0001 micron), to make acceptable boiler feed water. The membranes had been taken out of service for some time as oil and grease upsets in the process slug the membranes and operation of the equipment is not sustainable. The backwashable STiR filter was pilot tested for 4 months to prove that it can viably remove the oil and the membranes can be placed back in service.
The STiR filter protects the RO system, allowing the customer can now operate the Nano filter and the Reverse osmosis membrane without worry of contamination. Reuse of the hot process water will save significant amounts of money as heating cool water is no longer required.
The Filtra Systems STiR filter was selected for evaluation in this industrial wastewater treatment application due to ability to remove a high percentage of suspended solids. The dynamic backwashing method is self-cleaning, with minimal backwash volume and support time. The walnut shell filter media is a sustainable technology that will last for the life of the product.