Water treatment agent composition, method for producing water treatment agent composition, and water treatment method

Abstract

Provided is a water treatment agent composition that suppresses a significant decrease in the sludge control performance (remarkable decrease in oxidizing power) of an inorganic sludge control agent, and combines a hypobromite, which is an inorganic sludge control agent, with a corrosion inhibitor in one dose. A kind of water treatment composition, it is the reactant of bromine oxidizing agent or bromine compound and chlorine oxidizing agent, and sulfamic acid compound, and the polymer comprising the monomer unit of formula (1), comprising formula (2 ), a binary copolymer comprising a monomer unit of formula (1) and a monomer unit of formula (3), a monomer unit comprising formula (1) and a monomer of formula (3) Unit and the terpolymer of the monomeric unit of formula (4), the phosphinocarboxylic acid copolymer of formula (5), the two (poly-2-carboxyethyl) phosphinic acid of formula (6), the formula (7 ) 2-phosphonobutane-1,2,4-tricarboxylic acid and its salt, and at least one anticorrosive agent among azole compounds at a pH of 13 or higher.

Description

technical field [0001] The present invention relates to a water treatment agent composition for controlling fouling of organisms in water systems, a method for producing the water treatment agent composition, and a water treatment method using the water treatment agent composition. Background technique [0002] As a fungicide for controlling biofouling in industrial water systems such as cooling water systems, paper manufacturing processes, etc., inorganic sludge control agents that have oxidative power compared with organic sludge control agents, that is, have high immediate effects, are used. doses increased. As the inorganic sludge control agent, hypochlorite such as sodium hypochlorite is mainly used, and hypobromite such as sodium hypobromite may be used in order to further enhance the effect. [0003] Sodium hypobromite, which has a sludge control performance higher than that of sodium hypochlorite, is unstable, and industrially, for example, a method of mixing bromid...

AI Technical Summary

Problems solved by technology

However, in the fungicide and algicide composition of Patent Document 2, the chlorine-based oxidizing agent and sulfamic acid are reacted to stabilize the form of combined chlorine. Therefore, although the stability of the composition is increased, the oxidizing power of the sludge control agent is , that is, the problem of significantly reduced sludge control performance

[0008] In this way, when an inorganic-based sludge control agent and a metal anti-corrosion agent are attempted to be combined in one dose, oxidation and decomposition of the metal anti-corrosion agent will occur, and the performance of the sludge control agent (decrease in oxidizing power) will be caused. Therefore, it is extremely difficult to make a single dose of

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