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Ontario waste class 133 Salty liquids & wastes from chlorine & caustic soda plants.

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  • Based on Ontario Regulation 347 and registration guidance
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133, Brine and chlor-alkali residues.

  • Ontario inorganic wastes

    Brine and chlor-alkali residues

Ontario group: aqueous salts.

Brine & chlor-alkali residues, aqueous salt wastes from brine use & chlor-alkali production, in Ontario's aqueous salts group.

Is Ontario 133 hazardous waste?

Not from the code alone. Ontario 133 describes the waste stream, not whether it is hazardous. Ontario decides that from the hazardous characterization or liquid-industrial status, and from the exclusions. The 3-digit class needs a primary characterization letter to form the waste number.

For subject waste, the generator enters the class-and-letter waste number in the waste details of the Ontario hazardous waste manifest. Ontario’s exclusions and shipment rules also apply.

What does Ontario 133 cover?

Brine and chlor-alkali sludge or residue. Examples are discarded brine from a chlor-alkali plant, neutralized hydrochloric acid, and sludge or dewatered solids from brine treatment.

Is brine or chlor-alkali waste Ontario 133 or another class?

CodeWhen it fits
133The stream is brine and chlor-alkali sludge or residue.

When several characterizations apply, the registration flowchart picks the primary one. A 3-digit class doesn't replace the flowchart or the exclusions.

Which wastes take Ontario 133?

WasteWhen it’s 133
Spent brine from a chlor-alkali plantChlor-alkali origin or brine composition
Hydrochloric acid after neutralizationChlor-alkali origin or brine composition
Sludge produced by brine treatmentChlor-alkali origin or brine composition
Dewatered material left by brine treatmentChlor-alkali origin or brine composition

Which codes sit beside Ontario 133?

CodeWhat it is
122Other cyanide-free alkaline waste
123Alkaline phosphate waste
131Neutralized heavy-metal waste
132Other neutralized metal waste
134Sulphide-bearing waste
135Other anion-bearing waste
141Inorganic pigment production waste
142Primary lead/zinc/copper smelting waste