Pellet manufacturing apparatus and water treatment method using the same

A pellet manufacturing apparatus comprising:

• a reactor part configured to produce and discharge slurry that is either gas hydrate slurry or ice slurry;
• a pellet forming part installed on one side of an outer portion of the reactor part and configured to compress the slurry discharged from the reactor part and to form the slurry into pellets;
• and
• a control part which is communicatively coupled to a temperature sensor part and a pressure sensor part, and configured to control an operation of the reactor part and the pellet forming part,
• wherein the pellet forming part includes a first pipe having a through hole formed at one side of an outer surface thereof to be connected to an outlet of the reactor part, a compression forming module configured to compress the slurry supplied into the first pipe through the through hole and to form the slurry into pellets, and a heating module installed on one side of the first pipe to heat an inside of the first pipe,
• the heating module includes a second pipe having a second through hole formed on one side of an outer surface at a position corresponding to the first through hole and configured to surround an outer surface of the first pipe in a jacket structure, and a heating medium supply module configured to cause a heating medium to flow to a space formed between the outer surface of the first pipe and an inner surface of the second pipe,
• the pellet forming part further includes a third pipe interposed between the first pipe and the second pipe and configured to surround the outer surface of the first pipe in a jacket structure to cover a dewatering hole, and a drain tube connected to the third pipe, and
• the control part controls an operation of the heating module so that an internal temperature of the first pipe is adjusted to a predetermined temperature range when the pellets are formed.