Backwash water ultrafiltration system

Abstract

The utility model provides a backwashing water ultrafiltration system which comprises ultrafiltration equipment, a raw water inlet is formed in one end of the ultrafiltration equipment, a first filtered water outlet is formed in the other end of the ultrafiltration equipment, a concentrated water outlet is formed in one side of the ultrafiltration equipment, and the backwashing water ultrafiltration system is characterized by further comprising ceramic membrane equipment, the ceramic membrane equipment comprises a plurality of columnar ceramic membranes which are arranged in parallel from one end to the other end, the concentrated water outlet is communicated with one end of the ceramic membrane equipment through a concentrated water pipeline, a high-concentrated water outlet is formed in the other end of the ceramic equipment, and a second filtered water outlet is formed in one side of the ceramic membrane equipment; according to the utility model, the columnar ceramic membrane is additionally arranged in the backwashing process of the ultrafiltration equipment, so that high-solid-content liquid discharged by the ultrafiltration equipment can be further treated, more produced water can be obtained under the same water inlet condition, and the water production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a backwash water ultrafiltration system. Background Art

[0002] With the progress of urbanization and industrialization, industrial wastewater and urban wastewater are increasing, and wastewater treatment has become an important link on the road to urbanization and industrialization. Among the current wastewater treatment technologies, ultrafiltration technology has been applied in urban life and industrial industries in various fields. The existing ultrafiltration membrane system can only filter liquids with low solid content, and the water production efficiency is insufficient. Summary of the invention

[0003] The utility model aims to provide a backwash water ultrafiltration system.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A backwash water ultrafiltration system comprises an ultrafiltration device, wherein a raw water inlet is provided at one end of the ultrafiltration device, a first filtered water outlet is provided at the other end of the ultrafiltration device, and a concentrate water outlet is provided on one side of the ultrafiltration device. The system is characterized in that the system further comprises a ceramic membrane device, wherein the concentrate water outlet is connected to the front end of the ceramic membrane device through a concentrate water pipeline, a high concentrate water outlet is provided at the rear end of the ceramic device, and a second filtered water outlet is provided on one side of the ceramic membrane device.

[0006] Furthermore, the ceramic membrane device includes a plurality of columnar ceramic membranes arranged in parallel from one end to the other end, and the columnar ceramic membranes are of a half-type structure.

[0007] Furthermore, the columnar ceramic diaphragm includes a first diaphragm and a second diaphragm, the cross-sections of the first diaphragm and the second diaphragm are semicircular, the first diaphragm and the second diaphragm are symmetrically arranged, the arc-shaped outer walls of the first diaphragm and the second diaphragm are axially provided with a plurality of long grooves, and the front ends of the first diaphragm and the second diaphragm are axially provided with a plurality of water inlet holes.

[0008] Furthermore, the ceramic membrane device includes a flat ceramic membrane, and the flat ceramic membrane includes a plurality of membrane sheets, and water outlet pipes are provided at both ends of the membrane sheets.

[0009] The utility model adds a ceramic membrane in the backwash process of the ultrafiltration equipment, which can further process the high-solid content liquid discharged from the ultrafiltration equipment, obtain more water production under the same water inlet conditions, and improve the water production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the system structure of an embodiment of the utility model;

[0011] Figure 2 for Figure 1Schematic diagram of the structure of the columnar ceramic membrane;

[0012] Figure 3 This is a schematic diagram of the system structure of another embodiment of the utility model.

[0013] Reference numerals:

[0014] 1 ultrafiltration equipment, 2 raw water inlet, 3 first filtered water outlet, 4 concentrated water outlet,

[0015] 5 ceramic membrane equipment, 6 second filtered water outlet, 7 high concentration water outlet,

[0016] 8 columnar ceramic membrane, 81 first membrane, 82 second membrane, 83 long groove, 84 water inlet hole,

[0017] 9 Flat ceramic membrane. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model discloses a backwash water ultrafiltration system, such as Figure 1 As shown, it includes an ultrafiltration device 1, a raw water inlet 2 is provided at one end of the ultrafiltration device 1, a first filtered water outlet 3 is provided at the other end of the ultrafiltration device 1, and a concentrated water outlet 4 is provided at one side of the ultrafiltration device 1.

[0020] The backwash water ultrafiltration system also includes a ceramic membrane device 5 , a concentrate water outlet 4 is connected to the front end of the ceramic membrane device 5 through a concentrate water pipeline, a high concentrate water outlet 7 is provided at the rear end of the ceramic membrane device 5 , and a second filtered water outlet 6 is provided on one side of the ceramic membrane device 5 .

[0021] In one embodiment, Figure 1 As shown, the ceramic membrane device 5 includes a plurality of columnar ceramic membranes 8 arranged in parallel from one end to the other end. Figure 2 As shown, the columnar ceramic diaphragm 8 is a half-split structure, and the columnar ceramic diaphragm 8 specifically includes a first diaphragm 81 and a second diaphragm 82. The cross-sections of the first diaphragm 81 and the second diaphragm 82 are semicircular, and the first diaphragm 81 and the second diaphragm 82 are symmetrically arranged. The arc-shaped outer walls of the first diaphragm 81 and the second diaphragm 82 are axially provided with a plurality of long grooves 83, and the front ends of the first diaphragm and the second diaphragm are axially provided with a plurality of water inlet holes 84, which are connected to the long grooves 83.

[0022] When in use, the concentrated water flowing out of the concentrated water outlet 4 enters the first diaphragm 81 and the second diaphragm 82 from the water inlet hole 84 , and after being filtered, the concentrated water flows out from the flow channel formed by the long groove 83 .

[0023] In another embodiment, Figure 3 As shown, the ceramic membrane device 5 includes a flat ceramic membrane 9, which includes a plurality of diaphragms. Water outlet pipes are provided at both ends of the diaphragm. The concentrated water flowing out from the concentrated water outlet 4 is filtered through the diaphragm, and the sewage (high-concentration water) enters the channel inside the diaphragm, and clean water flows out from the water outlet pipes at both ends of the diaphragm.

[0024] like Figure 1 As shown, the utility model adds a ceramic membrane device 5 to the backwash process of the ultrafiltration membrane system, and the columnar ceramic membrane 8 or the flat ceramic membrane 9 treats the high-solid content liquid. In the above embodiment, the original ultrafiltration device 1 has a water production efficiency of 90%, and there is 10% waste water. After adding the ceramic membrane device 5, the 10% waste water can continue to produce 90% water, reaching a total water production of 99%.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A backwash water ultrafiltration system, comprising an ultrafiltration device (1), wherein one end of the ultrafiltration device (1) is provided with a raw water inlet (2), the other end of the ultrafiltration device (1) is provided with a first filtered water outlet (3), and one side of the ultrafiltration device (1) is provided with a concentrated water outlet (4), characterized in that: It also includes a ceramic membrane device (5), wherein the concentrated water outlet (4) is connected to the front end of the ceramic membrane device (5) through a concentrated water pipeline, a high-concentrated water outlet (7) is provided at the rear end of the ceramic membrane device (5), and a second filtered water outlet (6) is provided on one side of the ceramic membrane device (5).

2. The backwash water ultrafiltration system according to claim 1, characterized in that: The ceramic membrane device (5) comprises a plurality of columnar ceramic membranes (8) arranged in parallel from one end to the other end, and the columnar ceramic membranes (8) are of a split-half structure.

3. The backwash water ultrafiltration system according to claim 2, characterized in that: The columnar ceramic membrane (8) comprises a first membrane (81) and a second membrane (82), the cross-sections of the first membrane (81) and the second membrane (82) are semicircular, the first membrane (81) and the second membrane (82) are symmetrically arranged, the arc-shaped outer walls of the first membrane (81) and the second membrane (82) are axially provided with a plurality of long grooves (83), and the front ends of the first membrane (81) and the second membrane (82) are axially provided with a plurality of water inlet holes (84).

4. The backwash water ultrafiltration system according to claim 1, characterized in that: The ceramic membrane device (5) comprises a flat ceramic membrane (9), wherein the flat ceramic membrane (9) comprises a plurality of membrane sheets, and water outlet pipes are provided at both ends of the membrane sheets.

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