NATURAL GAS COMPRESSOR WATER CLEAN-UP
A unique and proven wastewater cleanup system is being used at several natural gas compressor stations.
Oil leakage and spills when servicing compressors, together with maintenance wash down water, are being satisfactorily treated with oil removal systems that consist of a wastewater holding tank with an oil drain off valve, a coalescing oil/water separator fitted with an oil skimming weir, and an effluent holding tank, plus two tertiary polishing filters.
The first filter is bedded with Oilsorb, an Oilsorb/anthracite filter media, which has a very high affinity for sorption of oil and grease and other sparingly water soluble contaminants. Those contaminants include benzene, toluene and xylene. The effluent from the first filter flows through a GAC (granular activated carbon) filter to remove the more soluble “light ends”, before being discharged.
Routine system maintenance is minimal, and the filter media has provided excellent bed life, longer than one year. Effluent quality is low to non- detect, allowing for re-circulation of the wastewater.
