Chemical Waste & Disposal At Purdue

1. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out Chemical Waste & Disposal At Purdue

2. #1 To be “hazardous waste” Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out It must be waste. Pretty simple. It it’s not waste, it is NOT hazardous waste, and hazardous waste rules do not apply.

3. #2 To be “hazardous waste” Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out It must be hazardous (by EPA definitions) • hazardous by (i) characteristic • ignitability • corrosivity • reactivity • toxicity • or (ii) listed by name or by source in hazardous waste regulations

4. IS IT WASTE? Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out (Waste = material intended for disposal)

5. IS IT HAZARDOUS? Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out • ignitability • corrosivity • reactivity • toxicity by a characteristic defined by EPA or on any EPA list. examples: F003 listed waste is “any waste mixture containing 10% or more xylene, acetone, ethyl acetate, ethylbenzene, ethyl ether, methyl isobutyl ketone, n-butyl alcohol, cyclohexanone, methanol, or any combination P077 listed waste = “unused p-nitroaniline”

6. “Characteristics” in detail Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out • Corrosive: pH >12 or pH < 2.5 • Ignitable: 4-part definition which includes most strong oxidizers! • Reactive: 8-part definition focuses on reactivity with air or water producing high energy or toxic gas. • Toxic: leachate from TCLP test (EPA method 1311) contains toxins in the D004 – D043 list, handout p. 24.

7. Evaluate compatibility of wastes BEFORE mixing them together. As is possible, neutralize strong acids/bases, react reactives, reduce oxidizers, oxidize reducing agents…. AS A DESIGNEDPART OF YOUR PROCESS. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out

8. Collect in appropriate and compatible containers; • Acids typically dissolve metals. • Some solvents dissolve some plastics. • HF and strong caustic etch glass. • Don’t mix radioisotope and chemical waste. • Keep all mercury separate. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out

9. If wastes are co-mingled in the lab, a log sheet should be used to track contents of each container. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out • All ingredients are to be listed. • EPA-regulated items will be named, waste “characteristics” made obvious. • Compatibility questions answered.

10. Toxic characteristic chemicals names must always be noted. • See your handout p. 24 Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out

11. Toxic characteristic chemicals names must always be on container label. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out • Any trace of any of those chemicals must be mentioned in the waste name; “chemical description” on the pickup form and “contents” on the waste label.)

12. Manufacturer’s label is adequate if you are disposing unwanted amount. • For chemicals & mixtures not in manufacturers’ container, label with: • Contents - no abbreviations,no symbols, no formulae. • Percentages must add to 100%. • This orange label is not required, but is widely recognized and used. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out

13. Segregate waste containers as for any chemical storage: • Acids separatefrom Bases • Oxidizers not near organics • Water-Reactives awayfrom water Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out

14. Satellite Accumulation Areas Info and rules here http://www.purdue.edu/rem/hmm/wststo.htm and http://www.purdue.edu/rem/home/booklets/HMMguide.pdf Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out

15. Making it go away. • On Pickup Form • Fill out correctly, neatly, legibly. • Questions? Call 40121. • Labels must match pickup request names. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out • In the Lab • Sealed, clean, correct containers. • Area and waste safe for REM people.

16. SO MANY RULESSo Many Different Cases • Friendly folks at REM-HMM will answer all questions. • And then you do what they say. • If a new or changed situation arises, ask more questions • Return to step 1. Definition Compatibility Collection Tracking Labeling Segregation SAAs Moving it out 40121

17. Pickup request 1. This one gallon jarcontains three broken mercury thermometers, with some paper towels and a couple of gloves. Write a line on the waste pickup request for it.

18. Pickup request continued 2. There are three 1 lb bottles of unused sodium thiosulfate. Write a second line on your waste pickup for these.

19. Pickup request continued 3. Waste container (4 L) log sheet says: Write a third line on your waste pickup for this.

20. Answer to Ex 1

21. Answer to Ex 2

22. Answer to Ex 3

23. TURN IN YOUR PAPERS • THANKS • Watch the website for practice final exam and instructions. • Next week is last class. BE THERE.