Low-production-cost polydopamine compound oil paint flocculant

A technology for polydopamine, production costs

A technology for polydopamine, production costs

CN106587375AInactive Publication Date: 2017-04-26TIANCHANG YINHU PAINT
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A polydopamine composite paint flocculant with low production cost comprises the following steps:

[0022] (1) Separation and purification of strains

[0023] Put the paint wastewater in the later stage of treatment into a sterile Erlenmeyer flask, store it at 4°C, and sterilize the seed culture at 121°C. After cooling, take 100 μL of wastewater and inoculate it into 100ml of seed medium, and expand at a constant temperature of 37°C. Cultivate for 24 hours, then dilute the culture solution to 10, 10, 10, 10, 10, and 10 times respectively, and then spread each diluted bacterial suspension on the separation medium, culture at a constant temperature of 37°C for 24 hours, and pick out the cells with good morphology. After the initial isolation of the colonies, the selected bacteria were inoculated in the seed medium, incubated at a constant temperature of 37°C for 24 hours, the culture solution of each bacteria was diluted, separated and purified by streaking, and the final...

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Abstract

The invention discloses a low-production-cost polydopamine compound oil paint flocculant which is prepared by the following steps: (1) separation and purification of strains; (2) screening of the strains; (3) fermentation cultivation of the strains; and (4) preparation of compound magnetic microspheres. The flocculant has the beneficial effects that the flocculation speed is high, the settling time is long, the feeding quantity is small, common components in oil paint can be stably coagulated, the wastewater treatment cost can be lowered, and the application prospects are wide.

Description

technical field [0001] The invention relates to the technical field of paint flocculants, in particular to a polydopamine composite paint flocculant with low production cost. Background technique [0002] With the development of the automobile industry and furniture manufacturing industry, the amount of spray paint is increasing, so there will be a lot of paint mist that cannot be applied to the workpiece and become "overspray" paint, and the amount of overspray reaches 25-60 %. These coatings contain a large amount of volatile organic solvents, which endanger human health and seriously pollute the surrounding environment and air. Spraying is a process in which the paint is evenly dispersed into fine particles through a spray gun or a disc atomizer under pressure or centrifugal force, and finally the paint mist particles are applied to the surface of the object. The oversprayed paint mist usually enters the circulating water, and the circulating water is taken out of the r...

Claims

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Application Information

Patent Timeline
26 Apr 2017
Publication
CN106587375A
IPC
C02F3/34; C02F1/48; C12N1/02
CPC
C02F1/488; C02F3/34; C02F3/348; C02F2303/20; C02F2305/08; C12N1/02
Inventors
祝盆鑫; 祝秀凤