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Following are a set of P2 options you may wish to implement. No option is perfect for everyone, but sometimes options that have worked at one facility can work at yours. They might also serve as inspiration.

Reviewed Cleaning and Degreasing Operations Options

Options below have reviewed by pollution prevention specialists. They are commonly recommended and implemented for facilities.

reduce solvent evaporation
Increase the freeboard height to significantly reduce solvent evaporation.
automatic parts lift
Install automatic parts lift on vapor degreasers
Use drain racks
Use drain racks to reduce dragout.
use rotating rack.
Drain parts using a rotating rack.
Clean parts
Determine whether parts need to be cleaned.
Use rust inhibitors and lubricants
Use easy-to-clean or no-clean rust inhibitors and lubricants
Review handling process
Review the handling process of the parts to determine why parts are getting dirty and take action to prevent it from happening in the future.
clean stock
Purchase clean input clean
Use elbow grease
Use elbow grease. When possible, clean by brushing and wiping.
Use aqueous-based cleaners
Use aqueous-based cleaners
Use Solvents
Use solvents with a low vapor pressure and high flash point.
Use citrus or terpene cleaners.
Use citrus or terpene cleaners.
Keep lids on
Keep lids on your solvent-cleaning vessels.
air-lock vapor degreaser
Use an air-lock vapor degreaser
reduce drafts
Minimize evaporation by reducing drafts.
Install refrigerated coils
Install refrigerated coils on the freeboard above the primary condenser coils. Working emissions are reduced by approximately 20-50 percent for above freezing coils and 30-80 percent for below freezing coils.
Use counter-current rinsing.
Use counter-current rinsing.
reuse aqueous cleaners.
Skim/filter and reuse aqueous cleaners.
install filtration or distillation units.
Reuse solvents by installing filtration or distillation units.
Install bioremediation parts washer
Install a bioremediation parts washer that uses enzymes to eat oil and grease.
Segregate solvents
Segregate solvents to allow recycling
Keep solvents out of used oil.
Keep solvents out of used oil.
Keep fluids out of solvents
Keep fuel, brake fluid, and other fluids out of solvents to prevent the mixture from becoming hazardous.
Keep solvents out of aqueous cleaners.
Keep solvents out of aqueous cleaners.
solvent storage.
Use secondary containment for solvent storage.
fix and prevent leaks.
Implement a maintenance program to fix and prevent leaks.
increase drain time.
Reduce dragout by increasing drain time.
reduce dragout.
When dipping parts, lift them such that it reduces dragout.
Install lids
Install sliding lids on solvent tanks.

Unreviewed Options, Use with CautionUnreviewed Cleaning and Degreasing Operations Options

Options below have not been reviewed by pollution prevention specialists. They are commonly recommended and implemented for facilities.

chemical concentration check
Ensure that make up of chemical mixture is not overconcentrated
Use ultra-sonic parts washers
ultra-sonic use high frequency soundwaves to agitate aqueous solvent solution to clean part more quickly and throughly using less solvent.
solvent recycling
re-use/re-cycle cleaning solvent multiple times
Plumb recovered solvent to system
By plumbing the recovered solvent to system, operator has the option of using the recovered solvent instead of virgin solvent.
Batch Compatibility
All formulas created are based on compatibility with each other so that tanks and drums may be reused with one another. This method virtually eliminates the need for cleaning except in very special circumstances.
Install a tank cleaning system for Spray dryer
Install a vendor-packaged unit to clean the spray dryer with high pressure water thus reducing the quantity of waste water generated
Use nonhazardous solvent
Use PD-680 type II or III solvent instead of chlorinated solvents to reduce hazardous constituents.

Find Options for other processes

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