If you are looking for hazardous waste disposal methods, you probably want to reduce your disposal costs, maybe even reduce the amount of hazardous waste you generate or perhaps eliminate the liabilities associated with your hazardous waste.
If you want to reduce your disposal costs or the amount of hazardous waste you generate, first confirm your hazardous waste is indeed hazardous and not mischaracterized non-hazardous waste.
Improper hazardous waste characterization is rare and costly, but correctable and we’ve seen it occasionally when helping clients implement a waste minimization program or GRIP program.
Hazardous Waste Disposal Methods
We list 5 common disposal methods. The first 3 hazardous waste disposal methods could help you achieve cost reduction and reduce the amount of hazardous waste you generate. These disposal methods are Fuel blending, Beneficial Re-Use and Elementary Neutralization.
Hazardous wastes with a high BTU value, might be ideal candidates for fuel blending. Fuel blending is a process where high BTU value hazardous wastes are burned as fuel for an industrial furnace or cement kiln.
Solvents that are too contaminated for solvent recycling are ideal for fuel blending. Examples include Methyl Ethyl Ketone, Glycol Ether, Acetone and Trichloroethylene. Depending on the BTU value, oil based paints might also be appropriate for fuel blending.
If you have gasoline, diesel fuel or other fuel sources that have become contaminated, it might be possible to remove the contaminates and re-use the fuel, instead of processing it for fuel blending.
Acid and caustic hazardous wastes might be ideal for beneficial re-use in wastewater treatment. In chemical precipitation of industrial wastewater treatment, metal contaminants are removed from wastewater by adjusting the pH. Acids like Sulphuric acid and hydrochloric acid reduce the pH; caustics like sodium hydroxide raise the pH of the wastewater. At different pH level, metals precipitate out of the water.
This is a terrific method to Re-Invent your sustainability story by transforming your hazardous waste into a resource to generate clean, reusable water. Annually, Advanced Waste Services helps clients treat 50 million gallons of industrial wastewater.
If you have corrosive only hazardous waste it might be a candidate for elementary neutralization. It’s a process that adjusts the ph to a non-hazardous level.
This significantly reduces your disposal costs because your waste becomes non-hazardous. Make sure you have an experienced professional that will not raise or drop the pH too aggressively. This could create a dangerous level of heat during the neutralization process.
The last 2 hazardous waste disposal methods listed are Stabilization and Landfill and Incineration. The 2 options provide a high level of liability protection and it might be worth the additional cost of disposal or even required.
Stabilization and Landfill
Stabilizing hazardous waste before landfill disposal is usually a two step process. The hazardous waste is chemically stabilized to be insoluble and then lime or cement kiln dust is added to form an insoluble solid.
This might be an ideal option for hazardous wastes that include acids sludges, cyanide wastes and heavy metal wastes containing D004 Arsenic, D005 Barium, D006 Cadmium, D007 Chromium, D008 Lead, D0010 Selenium and D011 Silver.
Incinerators are used to burn hazardous waste primarily for waste destruction and treatment purposes. Toxic organic constituents are destroyed. Metals do not combust so incineration is not an effective method for treating metal-bearing hazardous wastes (ref EPA website).
If you have PCB contaminated materials or PCB wastes, incineration will likely be your disposal method.
To learn more about Advanced Waste Services hazardous waste disposal methods visit our website, schedule a facility tour or ask us a question below.
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