Sludge circular flocculation-membrane filtration reactor

Abstract

The invention discloses a sludge circular flocculation-membrane filtration reactor relating to the technical field of urban feedwater treatment and being used for treating urban drinking water with micro-pollution water quality. The sludge circular flocculation-membrane filtration reactor comprises a rapid mixing chamber, a flocculation reaction chamber, a membrane filtration chamber and a sludge regulation chamber and is matched with equipment such as a membrane production water/back washing water system, a cleaning system, a water feeding pump, a water feeding pipeline, a flocculant adding pump, a flocculant adding pipeline, a pipeline mixer, a residual sludge collection pump, a sludge backflow pump, a sludge agent adding pump, a sludge agent adding pipeline, and the like. The invention combines the advantages of two processes of membrane filtration and flocculation contact, ensures that the drinking water treatment process has the characteristics of large-sized flocculation group, good flocculation effect at low temperature, less use of flocculant, and the like by dint of the strengthened flocculation efficacy of the residual sludge, and can more efficiently control the membrane pollution as compared with other membrane processes, thereby being beneficial to long-term and stable running of a membrane filtration device.

Description

technical field [0001] The invention belongs to the technical field of drinking water treatment and relates to a flocculation-membrane filtration reactor device. Background technique [0002] With the increasingly serious problems of water resource shortage and water source pollution and the further improvement of national drinking water quality standards, traditional conventional water treatment processes have been difficult to meet the safety requirements of drinking water. Therefore, new water treatment technologies must be developed to eliminate pathogenic microorganisms and organic pollutants in drinking water. In this context, membrane separation technology has received great attention. [0003] Compared with the conventional drinking water treatment process, the membrane separation process has the advantages of effectively removing turbidity and pathogenic organisms, but limited by the pore size factor, the commonly used ultrafiltration and microfiltration membranes ...

AI Technical Summary

Problems solved by technology

At present, the commonly used method is to add coagulant and coagulant in excess, which not only leads to excessive use of chemicals, but also fails to achieve ideal results under low temperature and low turbidity raw water conditions.

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