A ballast water treatment system includes: a chemical agent container for containing a chemical agent for a ballast water treatment; a chemical liquid preparation tank having a tank main body for containing the chemical agent supplied from the chemical agent container and water for dissolving the chemical agent, and a mixture part for mixing the chemical agent with the water in the tank main body; a chemical liquid storage tank for storing the chemical liquid obtained by dissolving the chemical agent in the water in the chemical liquid preparation tank; and a chemical liquid supply part for supplying the chemical liquid stored in the chemical liquid storage tank into ballast water.

The present disclosure is directed to an apparatus for facilitating the delivery of one or more chemical compounds to a stream of a fluid

An insert for a liquid-holding container may include a body comprising a wall, an open top end and a bottom end, and a generally tubular lumen extending from the open top end to the open bottom end. The insert may include a plurality of first openings formed in the wall, the first openings being situated between the top and bottom ends, wherein each of the plurality of first openings defines an area, and wherein the plurality of first openings have substantially the same dimensions. The insert may include one or more second openings formed in the wall, the one or more second openings being situated between the top and bottom ends, wherein each of the one or more second openings defines an area that is greater than the area defined by any of the first openings, wherein the one or more second openings have substantially the same dimensions.

An insert for a liquid-holding container may include a body comprising a wall, open first and second ends, and a lumen extending from the open first end to the open second end. The insert also may include a plurality of first openings formed in the wall, the first openings being situated between the first and second ends, and each of the first openings defining an area, and one or more second openings formed in the wall, the one or more second openings being situated between the first and second ends, each of the one or more second openings defining an area that is greater than the area defined by any of the first openings, where at least one of the one or more second openings is situated closer to the first end than any of the first openings, and wherein each of the first and second openings is sized to permit the passage of a liquid.

The present invention relates to a mixing assembly for controlling mixing of green liquor and a flocculation agent, the mixing assembly comprising a mixing vessel (20) having a first end and a second end, a vessel inlet (21) for supplying liquor and flocculation agent to the mixing vessel in a vicinity of the first end, a vessel outlet (22), a stirring device (31) that is rotatably arranged in the vicinity of the first end for mixing the liquor and flocculation agent by stirring, wherein the mixing vessel (20) has a length from a center of the vessel inlet to a center of the vessel outlet, and the mixing vessel also has a maximum width that is perpendicular to the length, and wherein said length is at least 1.5 times the maximum width. The invention also relates to a method for controlling flocculation of green liquor.

An insert for a liquid-holding container may include a body comprising a wall, open first and second ends, and a lumen extending from the open first end to the open second end. The insert also may include a plurality of first openings formed in the wall, the first openings being situated between the first and second ends, and each of the first openings defining an area, and one or more second openings formed in the wall, the one or more second openings being situated between the first and second ends, each of the one or more second openings defining an area that is greater than the area defined by any of the first openings, where at least one of the one or more second openings is situated closer to the first end than any of the first openings, and wherein each of the first and second openings is sized to permit the passage of a liquid.

An insert for a liquid-holding container may include a body comprising a wall, an open top end and a bottom end, and a generally tubular lumen extending from the open top end to the open bottom end. The insert may include a plurality of first openings formed in the wall, the first openings being situated between the top and bottom ends, wherein each of the plurality of first openings defines an area, and wherein the plurality of first openings have substantially the same dimensions. The insert may include one or more second openings formed in the wall, the one or more second openings being situated between the top and bottom ends, wherein each of the one or more second openings defines an area that is greater than the area defined by any of the first openings, wherein the one or more second openings have substantially the same dimensions.

An insert for a liquid-holding container includes a body comprising a wall, open first and second ends, and a lumen extending from the open first end to the open second end. A plurality of first openings are formed in the wall, each of the first openings defining an area, and one or more second openings are formed in the wall, each of the one or more second openings defining an area that is greater than the area defined by any of the first openings. The first openings are arranged in a first row of at least three first openings in axial alignment and a second row of at least three first openings in axial alignment. At least one of the one or more second openings is situated closer to the first end than any of the first openings, and each of the first and second openings is sized to permit the passage of a liquid.