Floating type ocean sewage treatment device and method

The invention discloses a floating type ocean sewage treatment device, and relates to the technical field of ocean sewage treatment.The floating type ocean sewage treatment device comprises a device body, a water inlet cavity is formed in one end of the interior of the device body, a water inlet is formed in the end of the water inlet cavity, a seawater temporary storage cavity is further formed in the device body, and a water filtering assembly used for filtering water is arranged on the seawater temporary storage cavity; by means of the compression assembly, impurities can be compressed in the using process, meanwhile, water can be filtered while compression is conducted, the water content in the impurities is reduced, the situation that the weight is large due to excessive water during impurity storage is effectively reduced, meanwhile, the size of the compressed impurities is greatly reduced, and the service life of the impurities is prolonged. Therefore, more impurities can be accumulated in the same spa