摘要:
Provided are a water treatment system and a water treatment method with which salt-containing water can be recycled with a high water recovery rate. In this water treatment system (1) and water treatment method, a scale inhibitor is supplied to water to be treated including Ca ions, SO 4 ions, carbonate ions, and silica, and the water to be treated is adjusted to a pH capable of dissolving silica. Having had a calcium-scale inhibitor added thereto and the pH thereof adjusted, the water to be treated is separated by a desalination unit (10) into treated water, and concentrated water in which the Ca ions, SO 4 ions, carbonate ions, and silica are concentrated. In a crystallization unit (20), gypsum seed crystals are supplied to the concentrated water, and gypsum crystallizes and is removed from the concentrated water. The silica in the water to be treated is removed from the concentrated water at a downstream side of the crystallization unit (20) with respect to the water to be treated. Calcium carbonate in the water to be treated is removed from the concentrated water at an up-stream side of the desalination unit (10), or at a downstream side of the crystallization unit (20).
摘要:
A method and a system wherein hydrocarbon gases, such as natural gas, are subjected to steam reforming with a steam reformer to yield a reformed gas, gasoline is synthesized from the reformed gas via methanol in a methanol synthesis tower and a gasoline synthesis tower to thereby produce a liquid fuel and, simultaneously therewith, some of low-pressure steam obtained by heat recovery from the reformed gas is superheated in a superheater with some of medium-pressure steam obtained by heat recovery in the methanol synthesis tower or gasoline synthesis tower, and the steam which has been rendered in an unsaturated state is supplied to a low-pressure steam turbine.
摘要:
(57) Abstract: Provided are a water treatment system and a water treatment method with which salt-containing water can be recycled with a high water recovery rate. This water treatment system (100) is provided with: second desalination units (210a, 210b) for separating water to be treated including Ca ions, SO 4 ions, and carbonate ions, into treated water and concentrated water in which the Ca ions and SO 4 ions are concentrated; crystallization units which are provided to downstream sides of the second desalination units (210a, 210b), and which are provided with second crystallization tanks (221a, 221b) for inducing crystallization of gypsum from the concentrated water, and seed-crystal supply units for supplying gypsum seed crystals to the second crystallization tanks (221a, 221b); and separation units which separate gypsum from the concentrated water at downstream sides of the crystallization units.
摘要:
An absorbent according to the present invention absorbs CO 2 or H 2 S contained in flue gas emitted from a power generating plant such as a thermal plant, and contains three or more amine compounds selected from linear or cyclic amine compounds having a primary amino group, and linear or cyclic amine compounds having a secondary amino group. By way of a synergetic effect of the mixture of these compounds, the absorption speed of CO 2 or H 2 S absorption is improved. A small amount of CO 2 contained in a large amount of boiler flue gas can be absorbed efficiently.
摘要:
A CO 2 reducing system (10A) is constituted by a low-temperature CO 2 reducing apparatus (11-1) that includes a low-temperature absorber (1006-1) that reduces at least one of CO 2 and H 2 S by bringing flue gas (1002) including at least one of CO 2 and H 2 S into contact with a low-temperature absorbing solution (1005-1), a low-temperature regenerator (1008-1) that regenerates a low-temperature rich solution (1007-1), a low-temperature rich-solution supply line (12-1) that feeds the low-temperature rich solution (1007-1) to the low-temperature regenerator (1008-1), and a low-temperature lean-solution supply line (13-1) that feeds a low-temperature lean solution (1009-1) to the low-temperature absorber (1006-1) from the low-temperature regenerator (1008-1); and a high-temperature CO 2 reducing apparatus (11-2) that is arranged on a side at which the flue gas (1002) is discharged, and that has the same configuration as the low-temperature CO 2 reducing apparatus (11-1).
摘要:
Provided are a composite material crushing apparatus, a moving unit, and a composite material crushing method that can sufficiently reduce the volume of a long composite material without increasing costs. Provided is a composite material crushing apparatus including: a cutting part (20) configured to cut, into pieces, a long composite material (200) formed of a resin material containing a fiber base material; a conveying part (10) configured to transport the pieces (201) cut by the cutting part (20); and a crushing part (30) configured to crush the pieces (201) conveyed by the conveying part (10).
摘要:
Provided are a water treatment system and a water treatment method with which salt-containing water can be recycled with a high water recovery rate. This water treatment system includes: a first desalinization unit for separating water to be treated including Ca ions, SO 4 ions, and carbonate ions, into treated water and concentrated water in which the Ca ions, SO 4 ions, and carbonate ions are concentrated; a crystallization unit which is provided at a downstream side of the first desalination unit, and which is provided with a first crystallization tank (21) for inducing crystallization of gypsum from the concentrated water, and a seed-crystal sup - ply unit (22) for supplying gypsum seed crystals to the first crystallization tank (21); a first pH measurement unit (543) for measuring the pH of first concentrated water inside the first crystallization tank (21); and a control unit (24) which, in cases when the pH measured by the first pH measurement unit (543) is in a pH range in which scale-inhibiting function of a calcium-scale inhibitor is reduced, reduces a supply amount of the gypsum seed crystals, and, in cases when the pH measured by the first pH measurement unit (543) is higher than said pH range, increases the supply amount of the gypsum seed crystals.
摘要:
Provided is a watercraft (1) including: a volume reduction processing part (20) configured to reduce the volume of a composite material (200) formed of a resin material containing a fiber base material; a body (2) in which the volume reduction processing part (20) is installed; and an internal combustion engine (3) configured to generate thrust for moving the body (2), and the volume reduction processing part (20) reduces the volume of the composite material (200) by heating the composite material (200) within a predetermined temperature range to thermally decompose the resin material.
摘要:
Provided is a composite material cutting apparatus (100) including: a support part (10) for supporting a tip (201) in a longitudinal direction (LD) of a long composite material (200) made of a resin material including a fiber base material at an upper part in the vertical direction (VD) and cause a base end (202) in the longitudinal direction (LD) of the composite material (200) to remain floating at a lower part in the vertical direction (VD); and a cutting part (20) configured to cut the composite material (200) at a cutting position (CP) between the tip (201) and the base end (202) of the composite material (200) supported by the support part (10).
摘要:
Object A cutting method, a disassembly method, a repair method, and an operation method that can suppress an outflow from a structure are provided. Solving Means The cutting method includes partitioning a cavity in a structure with a sealing material, and cutting the structure.