A method for manufacturing granules of, e.g., urea or ammonium nitrate, wherein the ejection of submicron dust to the atmosphere is reduced is described. The method contains an arrangement of three scrubbers wherein the gas withdrawn from the granulator is provided to a first scrubber, resulting in the formation of a first purified gas stream, which is provided to a third scrubber, with the operating temperature of the third scrubber being below than of the first scrubber. In preferred embodiments, the process comprises various recycle streams.