Water purification method suitable for low-temperature low-turbidity period

Abstract

The invention discloses a water purification method suitable for a low-temperature and low-turbidity period, which adopts a water purification device suitable for the low-temperature and low-turbidityperiod to perform water purification treatment, and the device comprises a dosing well, a flocculation tank, a sedimentation tank and a filter tank; the dosing well is connected with the flocculationtank connected with the sedimentation tank, and the sedimentation tank is connected with the filter tank; the sedimentation tank is provided with a muddy water suction pump, and the muddy water suction pump is connected with the dosing well through a sedimentation tank muddy water return pipe; and the dosing well is connected with a dosing mechanism, and a water treatment agent is fed into the dosing well by the dosing mechanism. According to the scheme, muddy water in the sedimentation tank is controlled to flow back to the water inlet end of the flocculation tank and is mixed with conventional chemicals to enter a flocculation system, so that the defects that the conventional flocculation sedimentation tank is relatively high in effluent turbidity when coping with low-temperature and low-turbidity source water, the load of the filter tank is increased and the filter tank needs to be frequently washed are avoided, and the operation condition of the filter tank is well guaranteed; andwater quality of a water purification plant is guaranteed to reach the standard safely and stably, water consumption is low, medicine consumption is low, and the method is suitable for water purification-to-water process treatment.

Description

technical field [0001] The invention relates to the technical field of municipal water supply and drainage, in particular to a water purification method suitable for low-temperature and low-turbidity periods. Background technique [0002] Half of the municipal water supply system adopts a unified water supply system that integrates life, production, and fire protection, with drinking water structures, still water structures, water transmission and distribution pipe networks, pressurized equipment, and regulating pools, water towers or high ground pools. [0003] A water supply system that uses groundwater as its water source. Groundwater such as diving and spring water generally has the characteristics of less pollution, relatively clean water quality, and relatively stable water temperature. The water supply system using groundwater as the water source generally consists of well cluster pools, pumping stations, water delivery network pipes, water towers, and water distribu...

AI Technical Summary

Problems solved by technology

[0007] Conventional flocculation and sedimentation tanks have defects such as high effluent turbidity when dealing with low-temperature and low-turbidity source water, which increases the filter load and requires frequent flushing of the filter.

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