Abstract: A snow removal apparatus having a frame, a first snow removal device, and a second snow removal device. The first snow removal device is operably mounted to the frame for removing snow from a front end of the frame. The second snow removal device is operably mounted to the frame for removing snow from a region lateral to a front end of the frame. The first snow removal device and the second snow removal device enable snow to be removed from a width that is wider than a width of the frame.

Abstract: A freezing cell having one or more freezing tines may be used to remove contaminated sediment from the beds of water bodies. The freezing tines are to be immersed into the sediment. Refrigerant is supplied to the tines by a refrigeration unit during the freezing cycle to solidify the surrounding sediment into a block held by the cell. The block of frozen sediment is lifted from the water body. The block is released from the freezing cell by heating the tines. The block is then transported for treatment. The freezing cell may be returned for reuse in sediment removal. The freezing cell may be configured to permit close placement of the cell to other like cells used in the extraction process. A method of freezing marine sediment into blocks is used to recover contaminants from water bodies.