SPS DIGESTER COVERS are used over the digester concrete tanks to seal the digested material and contain the gaseous  byproducts. In digester tanks the raw and odorous

 sludge is converted to a relatively stable material. The bacterial process converts the raw material to organic acids along with gaseous by-products of methane and others.

 The digester covers are built in fixed and floating types and provide a seal over the digested material. The gas is collected in the gas dome and is burned as a fuel in the 

sludge heater, with the excess wasted to a gas burner. In the floating digester the cover can rise vertically from the landing brackets to the top of the tank wall guided by 

rollers to keep it from binding. 

Available in sizes 0 - 100 ft diameter.