| 摘要 |
A method for removing contaminants from a surface such as pavement using a portable closed-loop system which is transported to the location to be cleaned by a vehicle. The method includes storing a volume of fluid in a clean tank, pumping the fluid to a cleaning head, blasting the surface to be cleaned with the fluid, suctioning the contaminants from the surface, removing suspended and colloidal contaminants, removing hydrocarbons, and returning this fluid to the clean fluid tank for recirculation through the system.
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