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Laundry wastewater surfactant reduction

Laundry wastewater surfactant reduction

Laundry wastewater surfactant reduction

(OP)
Can any tell me how to reduce the surfactants from a laundry waste stream.  The FDEP has a contamination limit at 2 mg/l as a residual in the soil.  The treatment process now is aeration and filtration and the concentration runs between 250-500.  The wastewater is disposed in a typical subsurface drainfield.  Am I wrong in arguing that the detergents are biodegradable.  I am testing an additive (basically grease)  and seeing some reduction (50%).  Maybe just increase the dose?  Seems kind of odd to add grease to waste water but what the heck.  Any help would be appreciated.

RE: Laundry wastewater surfactant reduction

The typical activated sludge process will remove the surfactants. The surfactants are biodegradeable.

Aeration alone is not going to do much.

Investigate the intallation cost of a package treatment plant.

RE: Laundry wastewater surfactant reduction

(OP)
Are there small package "off the shelf" options for activated sludge treatment?  This plant sees 8000 gpd max.

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