Water purification process

Abstract

The invention discloses a water purification process, which purifies water through purification devices. Each purification device comprises a water inlet, a purification membrane group for water purification, a water producing port for discharging purified water, and a water outlet for discharging concentrated water. According to the process, a plurality of the purification devices are distributed and combined to form a front part purification device group and a back part purification device group, and the front part purification device group and the back part purification device group compose a purification system. Through different collocation and combination of the purification devices in the front part purification device group and the purification devices in the back part purification device group, the purification system has multiple operation states, and according to needs, the purification devices in the back part purification device group and the purification devices in the front part purification device group can be interchanged in terms of the connection position. With the process, the pollution and plugging probability of the purification membrane group is lowered, the chemical cleaning expense caused by pollution and plugging of the purification membrane group is reduced, and the service life of the purification membrane group is prolonged.

Description

technical field [0001] The invention relates to a water purification process. Background technique [0002] In the existing water purification process, the arrangement order of multiple purification devices used to purify the water body is generally fixed, the water body flows from the front purification device group to the rear purification device group, and the purified water produced in the front purification device group flows from the water production port. The concentrated water is discharged, and the concentrated water enters the rear purification device group. However, the salt content of the influent water in the rear purification device group is higher than that in the front purification device group, so the pollution of the purification membrane group in the rear purification device group is relatively faster, and the probability of fouling is higher. The service life of the purification membrane group is shorter than the service life of the purification membrane...

AI Technical Summary

Problems solved by technology

However, the salt content of the influent water in the rear-stage purification device group is higher than that in the front-stage purification device group, so the purification membrane group in the rear-stage purification device group is polluted relatively faster, and the probability of fouling is higher. The service life of the purification membrane group is shorter than that of the purification membrane group in the front-end purification device group

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