(1) The Coalescer
The basic concepts used in our Coalescing Systems are gravity and coalescence. First the contaminated solution is taken into and through the coalescer with a pump. Because oil and water do not mix (unless chemically emulsified ), the larger droplets float to the top and are skimmed off.
The smaller droplets are collected on the olephilic (“oil-loving”) media to coalesce into larger units. These larger particles float to the surface and are skimmed off into a holding vessel. The “oil-free” water passes under a weir (wall) and out of the coalescer. Marlin units have achieved efficiencies of 90%-95% of the free oil removed.
(2) The Particulate Filter
The Particulate Filter is a pre-filter to effectively remove any dirt and dust particles, which would prematurely plug the oil absorbing media. It is a bag filter system consisting of the pressure vessel, the micron rated disposable filter bag and restrainer basket (to support the filter bag).
The disposable filter bag is a triple layered bag having a filter rating of approximately 1 micron. It will hold from 1-2 pounds of dry solids before becoming plugged.
Rapid access to the filter bag ensures a quick and easy clean-up of the vessel, since filtered out contaminants are trapped within the bag. “Spaghetti” is added into the clean filter bag to enhance the dirt holding capacity by up to 5 times.
(3) The Oil Absorbing Media
The Oil Absorbing TM Media is contained in removable disposable drums. The drums are specially coated with epoxy making them both chemical and abrasive resistant. This TM media absorbs oil and grease through a partitioning phenomena. The unique characteristics of the media results in a slight swelling of the bed as it removes the hydrocarbon from the contaminated liquid. At a maximum pressure of 8 PSI stoppage of the pumping action through the system is required as media is saturated and needs to be replaced thus eliminating the flow of unfiltered liquid to the environment.
(4)The Activated Carbon Media.
GC 12 X 40 is a virgin activated carbon derived from bituminous phase applications including the removal of organics from water streams. Its superior adsorptive capacity and surface area make it particularly attractive for use in waste water while its size makes it appealing where low pressure drop is needed. The net result is oil/grease readings will be well below 15 enabling the water to be sewer able.
Components Of"Flow and Plug" Systems
BAG FILTER:
Is a prefilter to effectively remove any dirt and dust particles which would prematurely plug the oil absorbing media. When the system becomes plugged, a differential pressure gauge measures the pressure drop and shuts down the pump. alight on the control indicates the bag filter is plugged.
OIL ABSORBING CANISTER:
The Media is contained in a removable aluminum canister. A differential pressure gauge measures the pressure drop across the bed and shuts down the pump. A light on the control panel indicates the oil absorbing canister is plugged.
