Dirty-proof inhibition composition for reclaimed water circulation sewage and preparation method and application

Abstract

The invention relates to a corrosion and deposit inhibiting combination for intermediate water sewage system, a fabrication and application method to be concerned, the corrosion and deposit inhibiting combination comprises an organic phosphonate, carboxylic acid multipolymer, zince sulfate and water; the corrosion and deposite inhibiting combination of the invention is fabricated by carboxylic acid multipolymer and other compounds, which can effectively prevent the formation of calcium carbonate in cool circulating water, and also has a favorable performance on preventing the formation of calcium phosphate scale, as the result shows, the corrosion and deposit inhibiting combination has an outstanding corrosion inhibiting effect, the corrosion velocity of carbon steel is only 0.05mm / a which is far smaller than 0.125mm / a equivalent to the national standard, the invention is applicable to a wide arrange of water quality fluctuation, and can provide with an outstanding corrosion and deposit inhibiting performance, the medicament consumption is small, only 40 to 60mg / l of the corrosion and deposit inhibiting combination in the invention can be used for capability of meeting the requirement on corrosion and deposit inhibiting, an industrial water consumption and an economic expense are tremendously saved, the economic benefit and the social benefit are favorable.

Description

technical field [0001] The invention relates to the technical field of industrial water treatment, in particular to a scale and corrosion inhibition technology used in circulating cooling water systems in the fields of electric power and thermal power to prevent scaling and corrosion of pipelines and equipment, especially for medium Scale and corrosion inhibitor composition for water turbid ring system, preparation method and application thereof. The antiscaling and corrosion inhibiting composition of the invention is energy-saving and suitable for circulating cooling water systems with wide fluctuations in water quality. Background technique [0002] The scarcity and pollution of water resources pose a threat to social stability and economic development, and become one of the most prominent problems facing the stability and development of most countries in the world. Conserving water and improving the utilization rate of water resources have become a top priority. To save ...

AI Technical Summary

Problems solved by technology

Among them, the oil pollution of the circulating water system of the continuous casting machine in the steelmaking plant is a problem that has plagued the water system of the steelmaking enterprise for many years. The oil pollution comes from the dripping of various oil agents in the continuous casting equipment, the oil penetrates into the circulating water, and the dust in the bonding water and calcium scale, forming oil sludge particles suspended in circulating water, or changing with temperature and concentration, decomposing or forming oil scale and adhering to equipment; because circulating water contains oil and rich oxidation, under sufficient light or temperature, a large amount of oil will surely grow in the system Bacteria and algae, and after adding the fungicide, the killed bacteria and algae will form biological slime adhesion or deposition, which will affect the heat exchange efficiency of the circulating water system. The slime and sundries will block the cooling water nozzle and bring System fouling and corrosion problems

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