Product Manual

cleaning solutions in a spray washer generally are not “hazardous wastes”. To be

considered a hazardous waste a hazardous waste by the U.S. Government, the

solution has to have one or more of the following (4) characteristics:

a. IGNITABILITY – A solid waste is a hazardous waste if it is a liquid and a

representative sample and has a flashpoint less than 140F.

b. CORROSIVITY – A solid waste is a hazardous waste is it is an aqueous

solution and a representative sample, and if it has a pH less than or equal

to 2 or grater than or equal to 12.5

c. REACTIVITY – A solid waste is a hazardous waste if a representative

sample reacts violently with water or releases cyanide or hydrogen sulfide

when exposed to low pH solutions.

d. EP TOXICITY – A solid waste is a hazardous waste if a representative

sample leaches heavy metals in concentrations greater than 100 times

primary drinking water standard concentrations.

The two characteristics that you have to be most concerned about are

CORROSIVITY and EP TOXICITY. Ask your detergent supplier if the pH of

your solution is greater than 12.5 and if so, how it can be neutralized with

acid. To check for EP Toxicity, you would need to have a sample tested by

a laboratory.

Assuming that your solution is not hazardous, or that with minor treatment

(e.g., adding acid) the solution can be made non-hazardous, the EPA does

not require special storage, documentation, transportation, and processing.

Since your solution will have oils, however, you will probably not be able to

dump the solution in the sewerage line (call your sewage treatment facility)

and you certainly can’t dump the solution on the ground or in a storm drain.

Given the above information, the best approach is to clean-up or filter the

solution so that the water content can be continually re-used. A dirty

solution separates into three (3) layers – oils rise to the top, sludge sits on

the tank bottom, and the water layer is in the middle. The surface oils,

which are skimmed off with the 9306 skimmer, can generally be stored with

your other waste oils. The sludge, most of which is trapped in the “Purifier”

section of the tank, is occasionally removed and stored as “hazardous”

waste to be conservative.

II. CONTROLS/OPERATION