Non-corrosive melting and roughening mixture based on wastes and waste concentrates and/or dried products of the fermentation industry, distilling industry as well as wine industry and a process for making road surfaces free of snow and ice

Abstract From the Canadian patent

The invention relates to a melting mixture for making surfaces particularly roads free of snow and ice said mixture optionally containing urea as an agent lowering the freezing point of water and, if desired, other additives, which comprises alcohol distillation residue and/or fermentation dregs of the alcohol and/or wine industry which may be present optionally in a con- centrated form e.g. in a form dehydrated on a filter press or in a centrifuged or optionally powdered form; wherein the total dry substance content of the residue and dregs amounts to at least 40 % by weight of the total weight of the aqueous melting mixture and at least 15 % by weight of this dry substance content …