14403 It is appears no any sewage stored on board as it is demonstrated by that sewage treatment plant has not been put in service and sewage holding tank was empty after the manhole cover was dismantled.Also,there is no any sewage found in other place on board.Thus it is suspected that sewage discharged to sea directly . ---------30 M73/78/ANIV/R9
1.Every ship which, in accordance with regulation2, is required to comply with the provisions of this Annex shall be equipped with one of the following sewage system:.
.1 a sewage treatment plant which shall be of a type approved by the Administration, taking into account the standards and test methods developed by the Organization,or.
.2a sewage comminuting and disinfecting system approved by the Administration. Such system shall be fitted with facilities to the satisfaction of the Administration, for the temporary storage of sewage when the ship is less than 3 nautical miles from the nearest land, or
.3 A holding tank of the capacity to the satisfaction of the Administration for the retention of all sewage, having regard to the operation of the ship, the number of persons on board and other relevant factors. The holding tank shall be constructed to the satisfaction of the Administration and shall have a means to indicate visually the amount of its contents.
一、MARPOL 73/78/ANNEX IV/R9：生活污水系统
.2 经主管机关认可的生活污水粉碎和消毒系统，该系统应配备令主管机关满意的各项设施，用于船舶在离最近陆地不到3 n mile的临时储存生活污水；或
1. Subject to the provision of regulation 3 of this Annex, the discharge of sewage into the sea is prohibited,except when:
.1 the ship is discharge comminuted and disinfected sewage using a system approved by the Administration in accordance with regulation 9.1.2 of this Annex at a distance of more than 3 nautical miles from the nearest land, or sewage which is not comminuted or disinfected at a distance more than 12 nautical miles from the nearest land, provided that, in any case, the sewage that has been stored in holding tanks shall not be discharged instantaneously but at a moderate rate when the ship is en route and proceeding at not less than 4 knots; the rate of discharge shall be approved by the Administration based upon standards developed by Organization;or
.2 the ship has in operation an approved sewage treatment plant which has been certified by the Administration to meet the operational requirements referred to in regulation 9.1.1 of this Annex,
.2.1 the test results of the plant are laid down in the ship’s International Sewage Pollution Prevention Certificate;and
.2.2 additionally, the effluent shall not produce visible floating solids nor cause discoloration of the surrounding water.
二、MARPOL 73/78/ANNEX IV/R11：生活污水排放
.1 船舶在距最近陆地3n mile以外，使用主管机关按照本附则第9.1.2所认可的系统排放经粉碎和消毒的生活污水，或在距最近陆地12 n mile以外排放未经粉碎和消毒的生活污水。但在任何情况下，不得将集污舱中储存的生活污水或源自装有***动物处所的生活污水顷刻排放，而应在航行途中，船舶以不小于4km的航速航行时，以中等速率排放；排放率应经主管机关根据本组织制定的标准予以批准；或