WASTE TREATMENT

摘要

A waste treatment chamber takes the form of a space enclosed between two parallel walls (36) and closed by a roof (42) and doors (38, 40) at both ends. The walls provide support for a machine (24) which can travel the length of the walls to turn over the waste in the chamber. The machine has a turning drum (32) on the end of an operating arm (34), and when turning is taking place, the machine is above the roof (42) with the drum beneath the roof and the operating arm (34) extending through a longitudinal opening (46) in the roof. The opening is closed by a flexible seal (50) which can be displaced by the arm as the machine travels along the chamber, and reforms to close the opening when the arm moves on.