An apparatus includes an injection part, a transfer part, a pressure supply part, a collision part and an emission part. An object is injected through the injection part. The transfer part is connected to the injection part, and bended at a plurality of points thereof. The object passes through the transfer part. The pressure supply part is connected to the transfer part and supplies a pressure into the transfer part to move the object. The collision part collides with the object moving in the transfer part to treat a surface of the object. The emission part is connected to the transfer part, and the object having the treated surface is emitted through the emission part.