The invention discloses a soiling solution tank and a liquid cargo ship with the soiling solution tank. The soiling solution tank comprises at least two front tanks and at least two rear tanks, and any two adjacent front tanks are separated through a longitudinal tank wall; any two adjacent rear cabins are separated by a longitudinal watertight bulkhead; any adjacent front cabin and rear cabin are separated by a transverse partition wall; a communicating valve is arranged at the bottom of the transverse partition wall, each front cabin is communicated with a cargo oil cabin through a cargo oil pipe, the cargo oil pipe is connected with a cargo oil pump, each rear cabin is connected with a discharge ship outer pipe through a piping system, the discharge ship outer pipe is connected with an oil discharge monitoring system, the oil discharge monitoring system is connected with a dirty liquid cabin discharge port, and the oil discharge monitoring system is connected with the corresponding rear cabin through a return pipeline; the liquid cargo ship with the dirty liquid tank comprises a liquid cargo ship body, and the cargo oil tank and the dirty liquid tank are arranged on the liquid cargo ship body. The dirty liquid tank is beneficial to discharge of internal liquid, and the construction cost is reduced; oil-water separation can be achieved, the treatment cost of ship oily water drainage is reduced, and the ship operation cost is reduced.

本发明公开了一种污液舱及带有污液舱的液货船，污液舱包括至少两个前舱、至少两个后舱，任意相邻两个前舱之间通过纵向舱壁隔开；任意相邻两个后舱之间通过纵向水密舱壁隔开；任意相邻的前舱和后舱之间通过横向分割壁隔开；横向分割壁底部设有连通阀，各个前舱通过货油管连通货油舱，货油管连接货油泵，各个后舱通过管系连接排船外管，排船外管上连接有排油监控系统，排油监控系统连接污液舱排出口，排油监控系统通过回流管路与其对应的后舱连接；带有污液舱的液货船包括液货船本体，液货船本体上设有货油舱和污液舱。本发明污液舱有利于内部液体的排出，降低建造成本；可以实现油水分离，降低了船舶油污水排岸的处理费用，降低了船舶营运成本。