Non-Hazardous Wastes - Recycling - Treatment
NON-HAZARDOUS CHEMICALS
- EH&S must perform an official hazardous waste determination for disposal of all chemicals
- Collect solids in disposable, non-leaking containers, labeled with contents, clearly marked as non-hazardous, and prepared for disposal
- EH&S will accept and dispose any well-identified non-hazardous waste; it can alternatively be placed in the campus garbage collection system
- Solutions containing only non-hazardous, water miscible liquid materials, pH between 6 and 9.5, can be disposed through the sewer system
- Remember: "hazardous" includes flammable liquids even if water soluble
- Corvallis wastewater disposal guidelines
- Full Corvallis Sewer guidelines
The items listed below are considered NON hazardous:
- Acetates: Ca, K, Na, K, Mg, NH4
- Naturally occurring amino acids & salts
- Citric acid and salts of Na, K, Mg, NH4, Ca
- Bicarbonates: Na, K
- Borates: Na, K, Mg, Ca
- Bromides: Na, K, NH4
- Carbonates: Na, K, Mg, Ca, NH4
- Chlorides: Na, K, Mg, Ca, NH4
- Formates: Na, K, Mg, Ca, NH4
- Lactic acid and salts of Na, K, Mg, NH4, Ca
- Sugars and sugar alcohols
- Starch
- Iodides: Na, K, Ca
- Oxides: B, Mg, Ca, Al, Si, Fe, Zn
- Phosphates: Na, K, Mg, Ca, NH4
- Silicates: Na, K, Mg, Ca
- Sulfates: Na, K, Mg, Ca, NH4
CHEMICAL RECYCLING
- Possible if material is in unopened containers or partially used original containers and of high quality
- Materials are available to interested parties at OSU. Be careful not to obliterate any parts of labels
- Chemicals and chemical products should not be given or sold to the general public or offered as surplus property
- Commercial chemical products may be offered as surplus property if reasonable cautions are followed
TREATMENT
- Elementary neutralization can be performed on wastes which are hazardous only because they are corrosive (acids, bases)
- A neutralized solution should have a final pH value between 6 and 9. Corrosive waste should not be discharged through the sewer system
- EH&S may be able to provide generators with appropriate neutralization materials
- Treatment of other materials to lessen the hazard or amount of a waste can be included as part of standard operating procedures in laboratories
- Such procedures should be written and made a part of specific experimental protocol