Hardly degradable organic matter adsorption separation method and system thereof

Abstract

The invention relates to a hardly degradable organic matter adsorption separation method and a system thereof. The method comprises the following steps: adding powdery active carbon mixed liquor in raw water polluted by hardly degradable organic matter, fully mixing active carbon and waste water for adsorption treatment, placing PAC liquid medicine in the waste liquid after adsorption treatment for flocculation treatment, then precipitating the waste water after flocculation, and performing ultrafiltration on a supernate after precipitation. The system comprises a raw water pool, a adsorption reaction tank, a flocculation reaction tank, a preliminary sedimentation tank, an intermediate pool, a membrane ultrafiltration water supply pump, a membrane set ultrafiltration unit, an AC soluble drug delivery device, and a PLC control unit. The process flow is simple, separating efficiency for the hardly degradable organic matter is high, effect is good, the quality of the separated water can reach a set index in a stable mode, and the method is adapted to popularization and application.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and specifically relates to a method and system for adsorption and separation of refractory organic matter, which can be used in the field of tap water purification and waste water treatment polluted by refractory organic matter such as benzene rings and heterocycles. Background technique [0002] (1) Traditional adsorption and separation technology for refractory organic matter [0003] Biodegradation technology has been widely used in the field of water treatment, but refractory organic substances in water, including benzene rings, heterocycles, etc., are difficult to remove by biodegradation technology. At this time, powdered activated carbon is often used to adsorb the refractory organic matter in the water body, and then the powdered activated carbon that has completed the adsorption process is separated from the water body to complete the purification of the refractory organic matte...

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Problems solved by technology

[0005] ①The sedimentation area is too large, and the surface load of the sedimentation tank needs to be <0.8m³ / ㎡.h;

[0006] ②Sand filter filtration accuracy > 50μm, which cannot meet the use or emission requirements in many occasions;

[0007] ③ The amount of AC, PAC, and PAM cannot be effectively controlled, resulting in an increase in the amount of medication and sludge

[0011] Due to the relatively short launch time of this kind of dense channel inorganic ceramic membrane in China, the research on its application in different fields is not enough. So far, no research on the application of this kind of membrane in the field of adsorption and separation of refractory organic matter has been seen.

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