Freeport, Texas, Out of Service Storage Tank Contaminated Water Treatment Challenge A facility on the Gulf Coast had an out of service tank that once contained Pyrolysis Gasoline (Pygas), but had recently been used to store various waste streams and contaminated water. The 132' diameter, 56' tall internal floating roof tank was due for inspection and the facility had no way to treat the contaminated water, which contained a myriad of oils and particulates. Solution Envent engineers began with a job walk and gathered samples from the tank. The team tested a number of coagulants during an extensive bench test and worked with the facility to ensure that the selected coagulant was compatible with their downstream treatment processes. Envent used the coagulant with the Envent Cavitated Air F

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