Sewage solid-liquid separation and purification system

Abstract

The invention discloses a sewage solid-liquid separation and purification system. The system comprises a sewage transfer pump, a reagent reaction tank, a liquid reagent transfer pump, at least one sewage reaction tank, a mixed solution transfer pump and a solid-liquid separation unit; and the solid-liquid separation unit is provided with a mixed solution inlet, a sludge outlet and a clear outlet, and comprises a centrifuge, a filter screen and a purifying chamber. The sewage solid-liquid separation and purification system realizes accurately-quantified stable and continuous solid-liquid separation and purification of sewage.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage solid-liquid separation and purification system. Background technique [0002] With the rapid development of social economy, the urban population has increased sharply, and urban water consumption has increased significantly. In addition, sewage interception and management projects are restricted by municipal facilities and geographical factors, resulting in incomplete interception of sewage. Urban domestic sewage, industrial wastewater, agricultural sewage, After various point and non-point source pollution sources such as domestic garbage and initial rainwater invade the river, the balance of the river system is destroyed, resulting in low dissolved oxygen in the river, lack of an environment for aquatic animals and plants, and the water body gradually loses its self-purification ability. The river is seriously polluted. The deterioration of the water environ...

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Problems solved by technology

[0003] At present, most of the sewage treatment uses chemical methods, biological methods, etc. Due to the huge construction project, large area, many and complicated equipment, large investment costs, long construction period, and slow reaction rate during the treatment process, pollutants Difficult to degrade, high operating costs, etc., which is impossible for many cities or towns at this stage

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