Profile: M K Environmental, Inc. specializes in ground water soil remediation systems. We also deal with water sealed liquid ring systems. These are typically used when a vacuum is required, and dual extraction is desired. Total fluids system operates by pulling all the recovered air and groundwater through the liquid ring pump and then separating the air from the water in the separator tank. Oil sealed liquid ring systems use a special type of mineral oil for the sealing fluid instead of water. The oil is re-circulated in a closed loop process with an oil-air heat exchanger to keep oil temperatures 150-170° F.