Chemical waste liquid treatment system based on ultrafiltration rotary ceramic membrane and treatment method thereof

Abstract

The invention discloses a chemical waste liquid treatment system based on an ultrafiltration rotary ceramic membrane and a treatment method thereof. The system comprises a filtering unit, an adsorption unit and a pH adjusting unit, wherein the filtering unit comprises an outer cylinder; a first rotating shaft is arranged in the outer cylinder; a ceramic membrane is arranged on the first rotating shaft; a first water pipe is connected to the right of the outer cylinder; the adsorption unit comprises an adsorption box; a second motor is arranged at the top of the adsorption box and connected with a second rotating shaft; an activated carbon net is arranged on the second rotating shaft; the adsorption box is connected with a second water pipe; the pH adjusting unit comprises an adjusting box;a third motor is arranged at the top of the adjusting box and connected with a third rotating shaft; and a stirring rod is arranged on the third rotating shaft. By arranging the shaft disc type ceramic membrane for filtration, wastewater with high viscosity can be treated, operation cost is low, the service life of the ceramic membrane is long, and filtration time is short; and a high shear rateis generated on the surface of the ceramic membrane along with high-speed rotation of the ceramic membrane, so rotational-flow sweeping flow is formed, a filter cake layer on the surface of the ceramic membrane is very thin, and blockage can be avoided.

Description

technical field [0001] The invention relates to the technical field of chemical waste liquid treatment, in particular to a chemical waste liquid treatment system and a treatment method based on an ultrafiltration rotating ceramic membrane. Background technique [0002] Chemical and chemical waste liquid is waste liquid such as process waste liquid, cooling liquid, exhaust gas washing liquid, equipment and site washing liquid discharged in chemical production. If the waste liquid is discharged without treatment, it will cause different properties and different degrees of pollution of the liquid, thereby endangering human health and affecting industrial and agricultural production. [0003] Existing chemical wastewater treatment generally adopts tangential flow membrane filtration. This filtration method cannot handle wastewater with high viscosity such as emulsion wastewater and high-viscosity graphene slurry, and the service life of the membrane is short. The cost is high, ...

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Problems solved by technology

If these waste liquids are discharged without treatment, they will cause different properties of the liquid and different degrees of pollution, which will endanger human health and affect industrial and agricultural production.

[0003] Existing chemical wastewater treatment generally adopts tangential flow membrane filtration. This filtration method cannot handle wastewater with high viscosity such as emulsion wastewater and high-viscosity graphene slurry, and the service life of the membrane is short. The cost is high, the filtration time is long, and the treatment effect of harmful substances in wastewater is poor, and the treatment effect of wastewater is not good

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