Coagulant for paint mist and application of coagulant

A paint mist coagulant and reaction technology, applied in the direction of flocculation/sedimentation water/sewage treatment, multi-stage water treatment, water/sludge/sewage treatment, etc., can solve the problem of high price and achieve the effect of obvious price advantage

Inactive Publication Date: 2015-01-28
HUBEI RUIFUYANG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, currently commercially available pa

Method used

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Embodiment 1

[0018] This embodiment provides a preparation method and application of a paint mist coagulant. The preparation method includes:

[0019] Preparation of Agent A: Add 15.12 grams of melamine and 20 milliliters of 37wt% formaldehyde solution to a stoppered flask filled with 200 milliliters of water, adjust the pH to 3 with hydrochloric acid, and react at 60°C for 3 hours to obtain A agent solution.

[0020] Preparation of agent B: Take 360 ​​ml of water, add 1.5 grams of anionic polyacrylamide with a molecular weight of 10 million, 1.2 ml of 30wt% sodium hydroxide in sequence, react for 1 hour at 70°C, cool down to 50°C, and add 2.5wt% of Add 40 ml of sodium sulfate, react at constant temperature for 2 hours, and then add 2 g of ammonium bicarbonate to prepare agent B solution.

[0021] Preparation of agent C: Add sodium hydroxide to water to make the concentration of the solution reach any value within the range of 10-30wt%, such as 10%, 15%, 20%, 25%, 30%, etc., and then s...

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Abstract

The invention discloses a coagulant for paint mist and application of the coagulant and belongs to the technical field of industrial paint-containing wastewater treatment. The coagulant for the paint mist comprises an agent A, an agent B and an agent C, wherein the agent A, the agent B and the agent C are used in cooperation, the agent A is a linear high-molecular polymer generated in the mode that melamine reacts with aldehydes, the agent B is an aqueous solution obtained in the mode that anionic polyacrylamide with the molecular weight of 8,000,000 to 10,000,000 is modified through composite sodium salt, the agent C is an aqueous solution of alkaline inorganic compounds, and the composite sodium salt is a mixture of sodium hydroxide, sodium sulfate and ammonium bicarbonate. According to the coagulant for the paint mist, paint-containing wastewater treatment efficiency reaches up to above 95%, about 1.5 yuan is cost for treating a ton of wastewater, 2-3 yuan is cost for treating a ton of wastewater through a coagulant for paint mist currently sold on the market, price is much reduced, and the price advantage is obvious.

Description

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Claims

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Application Information

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Owner HUBEI RUIFUYANG CHEM TECH
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