NOVELTY - Treatment of liquid manure and poultry feces comprises: (1) flocculation with organic flocculant (I); (2) pre-dewatering in gravitational dewatering and prethickening cylinders; (3) dewatering in aggregate; (4) pelletizing; and (5) drying to 95-100% dry substance.    USE - The dry pellets are used as fuel and/or fertilizer (claimed). The purified water can be used as industrial water or even drinking water, and especially can be re-used on the farm.    ADVANTAGE - The process provides a method of treating liquid manure at acceptable cost and gives odorless, hygienic water and dried pellets, which can be used without difficulty. The water can be discharged into sewers or rivers or re-used. The process operates with a favorable energy balance and is environmentally friendly. It can be adapted for use on large and small farms and can also be carried out with mobile plant.    DETAILED DESCRIPTION - Treatment of liquid manure and optionally liquid poultry feces comprises:    (1) flocculation with organic flocculant (I);    (2) pre-dewatering in gravitational dewatering and prethickening cylinders;    (3) further dewatering in a dewatering aggregate;    (4) pelletizing; and    (5) drying the pellets to 95-100% dry substance.    The dewatering filtrates and washing liquor are combined, re-flocculated by adding (I), if necessary, and passed to a rapid sedimentation vessel. The sedimented solids are separated from the liquid and recycled to manure treatment, whilst the liquid is passed to a bioreactor, subjected to chemical-biological degradation and optionally made hygienic with sodium hypochlorite.    INDEPENDENT CLAIMS are also included for:    (1) Various aspects of plant for operating the process;    (2) Mobile plant for operating the process;    (3) Plant for treating liquid manure, which comprises a liquid manure reservoir (1) suction pump (2), flocculation plant (3), flocculant dosing pump (4), pre-dewatering cylinder (5), prethickening cylinder (6), traveling screen press (7), mixing screw (8), pelletizing machine (9), bucket elevator (10), shaft trickle drier (11), conveyor belt (12), chain elevator (13), dry pellets vessel (14), crusher (15), powder container (16), dosing screw (17), powder blower (18), pulsation reactor (19), flue gas pipe (20), Stirling motor (21), bypass (22), ventilator (23), waste gas scrubber-biofilter (24), intermediate container for filtrate (25), water pump (26), fly ash (lime option) container (27), mixer with stirrer (28), dosing pump (29), inoculation tube (30), static mixer (31), fast sedimentation vessel (32), slurry suction pump (33), water container (34) and a bioreactor (35).    DESCRIPTION OF DRAWING(S) - The figure shows plant suitable for operating this process. (Drawing includes non-English language text).    Liquid manure reservoir (1)    Suction pump (2)    Flocculation plant (3)    Flocculant dosing pump (4)    pre-dewatering cylinder (5)    Prethickening cylinder (6)    Traveling screen press (7)    Mixing screw (8)    Pelletizing machine (9)    Bucket elevator (10)    Shaft trickle drier (11)    Conveyor belt (12)    Chain elevator (13)    Dry pellets vessel (14)    Crusher (15)    Powder container (16)    Dosing screw (17)    Powder blower (18)    Pulsation reactor (19)    Flue gas pipe (20)    Stirling motor (21)    Bypass (22)    Ventilator (23)    Waste gas scrubber-biofilter (24)    Intermediate container for filtrate (25)    Water pump (26)    Fly ash (lime option) container (27)    Mixer with stirrer (28)    Dosing pump (29)    Inoculation tube (30)    Static mixer (31)    Fast sedimentation vessel (32)    Slurry suction pump (33)    Water container (34)    Bioreactor (35)