Is it reasonable to classify the liquid taken from the side of the distillation tower as solid waste?

The high-boiling residue from the distillation tower should be classified as solid waste

Reply to 2# ccclove*: Is the high-boiling residue from distillation towers treated as solid waste?

If your organization is unable to make comprehensive use of this substance, it makes sense to classify it as solid waste; however, there can be some flexibility in the ways in which it is disposed of. You could also try to communicate actively with local authorities to have it classified as a product leaving the factory. Well, that might be a bit difficult! ! ! You can also check what category of hazardous waste it is classified as (HW?) ? ) Done, let’s see if it makes sense ? ?

The preliminary EIA draft has been classified as HW11

Main components and their contents? If it can be recycled, do so whenever possible; this substance has been classified as HW11 in environmental impact assessments, meaning it is already considered hazardous waste. The estimated components are not simple

It is reasonable for the environmental impact assessment to classify the azeotrope stream produced by the distillation tower as hazardous solid waste; this classification is made to facilitate disposal by the owner. Strictly speaking—if it is high-boiling residue from a distillation tower, it should be considered wastewater, and it must be treated before it can be partially converted into solids, with its quality having to meet the requirements or standards for discharge.

The high-boiling residue from the distillation tower should be classified as solid waste

The high-boiling residue must come from the bottom of the tower, right? What concerns me is the liquid taken from the side of the distillation tower; specifically, it’s a propylene-water solution. Through distillation, water and propylene are separated, and the liquid obtained from the side of the tower, above the middle section of it, contains harmful substances. Is it reasonable to classify the liquid taken from the side of such a distillation column as hazardous solid waste HW11? HW11 includes one category for non-specific industries, with waste code 900-013-11, representing tar-like residues generated in other refining, distillation, and any pyrolysis processes. The liquid taken from the side of the propylene aqueous solution distillation tower is not in the form of waste tar; it still consists mainly of propylene, along with water and very small amounts of other substances. Should it be classified as HW06 organic solvent waste, with waste code 261-005-06, representing reaction residues generated during processes such as the separation and distillation of organic solvents?