Mud-water separation system and method

Abstract

The invention belongs to the field of water treatment, and particularly relates to a mud-water separation system and method. The system comprises a reactor, a mud film filter, a mud film filter water producing pool and a tubular film filer; a water inlet of the reactor is used for being connected with raw water, and a water outlet of the reactor is connected with a water inlet of the mud film filter through a pipeline and a pump; a water outlet of the mud film filter is connected with the mud film filter water producing pool through a pipeline; a water outlet of the mud film filter water producing pool is connected with the tubular film filter through a pipeline and a pump; the tubular film filter is provided with a first drain outlet used for draining producing water and a second drain outlet used for draining concentrated water, and the second drain outlet is connected with the water inlet of the reactor through a pipeline; a medicine adding opening is formed in the reactor; a mud discharging opening is formed in the mud film filter. By means of the mud-water separation system and method, hardness, suspended solids, petroleum, colloid and organic molecular groups in waste water can be effectively removed, and simpleness and high efficiency are achieved.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a mud-water separation system and method. Background technique [0002] At present, most of the waste water treatment takes the ultimate goal of maximum reuse or zero discharge, and takes "pretreatment + membrane concentration + evaporation crystallization" as the mainstream treatment process. For wastewater containing suspended solids, hardness, colloids, petroleum and organic matter, the pretreatment process of "chemical reaction + precipitation separation + media filtration + ultrafiltration" is generally adopted. Since the influent water of each of the above units has strict water quality requirements, each unit requires a higher treatment efficiency, such as requiring that the suspended solids content after sedimentation and separation be less than 20 mg / L, and that the suspended solids content after media filtration be less than 5 mg / L , the ultrafiltration influent oil cont...

AI Technical Summary

Problems solved by technology

Since the influent water of each of the above units has strict water quality requirements, each unit requires a higher treatment efficiency, such as requiring that the suspended solids content after sedimentation and separation be less than 20 mg / L, and that the suspended solids content after media filtration be less than 5 mg / L , the oil content of ultrafiltration influent water is less than 1mg / L, etc. To achieve the above goals, each treatment unit occupies a large area, and the water quality of the final product water is difficult to control

[0003] Therefore, the treatment process of "chemical reaction + precipitation separation + medium filtration + ultrafiltration" has long process flow, large floor area, low efficiency, large amount of return water, and periodic impact load on influent water; high concentration of discharged sludge , the sludge is easy to harden, which affects the sludge transportation; the water quality of the produced water is difficult to effectively control

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