Boiler waste water treatment agent based on graphene modified polyaspartic acid and preparation method

Abstract

The invention discloses a boiler waste water treatment agent based on graphene modified polyaspartic acid and a preparation method. A composition of the agent is prepared from, by weight, 20-30 parts of polyaspartic acid, 2-3 parts of sodium gluconate, 2-3 parts of citric acid, 40-50 parts of poly-ammonium salt lignin flocculating agents, 20-30 parts of sodium bentonite, 8-10 parts of graphene, 4-6 parts of salicylic acid, 2-4 parts of alkaline trehalose, 20-30 parts of sepiolite powder, 10-14 parts of crosslinked rectorite powder, 3-5 parts of starch xanthate, 2-4 parts of amino tri-methylene phosphonic acid, 1-3 parts of polymerized potassium silicate sulfate, 1-3 parts of dimethyl diallyl ammonium chloride, an appropraite amount of deionized water and an appropriate amount of water. According to the boiler waste water treatment agent and the preparation method, graphene is adopted for modifying polyaspartic acid and improving dispersity of the polyaspartic acid for CaCO<3>, Ca<3>(PO<4>)<2>, dispersed ferric oxide, stable Zn<2+> salt and the like; meanwhile, efficient adsorption is achieved by adding the sodium bentonite, the sepiolite powder and the crosslinked rectorite powder, the boiler waste water treatment agent is low in cost and simple in preparation process, hollow porous particles are obtained, recovery is facilitated, and adsorption efficiency is improved.

Description

technical field [0001] The invention belongs to the field of water treatment preparations, and in particular relates to a graphene-modified polyaspartic acid-based boiler wastewater treatment agent and a preparation method. Background technique [0002] With the increase of energy demand, relying on boilers and coal is still the main way for the power industry to obtain energy. The boilers used for power generation in the power industry will generate a large amount of wastewater during operation, which will cause harm to the boiler itself and also cause damage to the environment. Pollution; the harm to itself is reflected in the formation of scale in the boiler sewage, which in turn corrodes the boiler. How to prevent the harm of boiler waste water to itself and the pollution of the environment is an important topic of environmental protection in the current power industry. [0003] As a polymer scale and corrosion inhibitor that can be completely degraded and harmless to th...

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Problems solved by technology

[0003] As a polymer scale and corrosion inhibitor that can be completely degraded and harmless to the environment, polyaspartic acid has a strong chelating and extraction ability for heavy metals. In recent years, it has been widely used in domestic and foreign medicine, health, and industrial and agriculture and other fields, but polyaspartic acid in CaCO 3 , Ca 3 (PO 4 ) 2 and dispersed iron oxide and stabilized Zn 2+ The effect of salt is not ideal, and its functional group is also relatively single, resulting in poor overall performance when used as a water treatment agent