Process for converting sludge into a fuel or a soil conditioner

摘要

A source of sludge (10) is adjusted with solid contents (38) in an adjuster (12) and passed to a premixer (14) wherein comminuted material (16) is added and passed to primary mixer (18) and then delivered by a pump (20) to press (22) where water (24) is expelled and the mixture is pressed into blocks and passed to pallet (26) and placed in storage (28) wherein gases (30) are expelled. The blocks (32) from storage are passed directly or comminuted in a comminuter (36) and part of the comminuted material is used as fuel (42) in burner (34) to produce heat (44) and an ash residue (46). The balance of the comminuted material from comminuted (36) is used as a soil conditioner or other uses (40) or passed as solid content (38) to adjuster (12).