Gel That Won’t Pump in February: Stiffness, Ice Lenses and Discharge Head
On the fourth of February a transfer station in Hebei tried to empty a 12 cubic metre gelled waste tank into a tanker and got 3 cubic metres in 90 minutes before the progressive cavity pump tripped on over-pressure. In July the same tank emptied in 25 minutes. The gel had not changed recipe. The tan…