CN203373222U - Separated treatment and reuse system for ultra-filter backwash drainage water - Google Patents
Separated treatment and reuse system for ultra-filter backwash drainage water Download PDFInfo
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- CN203373222U CN203373222U CN201320411536.3U CN201320411536U CN203373222U CN 203373222 U CN203373222 U CN 203373222U CN 201320411536 U CN201320411536 U CN 201320411536U CN 203373222 U CN203373222 U CN 203373222U
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- backwash
- backwash drainage
- water
- intermediate pool
- draining
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Abstract
The utility model relates to a backwash drainage water treatment system, particularly relates to a separated treatment and reuse system for ultra-filter backwash drainage water, and aims at mainly solving the technical problems that the backwash water is not classified and is uniformly processed in the prior art, the quality of the ultra-filter backwash drainage water is different, and the quantity of the backwash drainage water with better water quality is about three times of that of dosing backwash drainage water, and the backwash drainage water and the dosing backwash drainage water are uniformly processed after being mixed, so that the treatment cost is increased and the like. The separated treatment and reuse system comprises an ultra-filter backwash drainage main pipe, wherein the ultra-filter backwash drainage main pipe is connected with a first backwash drainage branch pipe and a second backwash drainage branch pipe respectively; automatic butterfly valves are arranged on the first backwash drainage branch pipe and the second backwash drainage branch pipe; the first backwash drainage branch pipe and the second backwash drainage branch pipe are connected with a first middle pond and a second middle pond respectively; the first middle pond is communicated with a pretreatment system through a backwash recovery pump and a recovery pipe; the second middle pond is communicated with a wastewater treatment system through a backwash drainage delivery pump and a delivery pipe.
Description
Technical field
The utility model relates to a kind of hyperfiltration reverse-rinsing disintegrating system in waste pipe, especially relates to a kind of hyperfiltration reverse-rinsing draining sub-prime and processes reclaiming system.
Background technology
More and more universal along with membrane technique, ultrafiltration is as wide to the influent quality claimed range, and treatment effect is good, and floor space is little, the automatic operating degree is high, the reverse osmosis pretreatment technology of convenient operating maintenance, has obtained approving comparatively widely and using.The producer that manufactures ultra-filtration membrane is more, but for fear of with reduce the pollutents such as suspended solid, bacterium and colloid of holding back on the film surface and stop up fenestra, guarantee the normal operation of system, all take the method for backwash and dosing backwash.
Hyperfiltration reverse-rinsing is that ultrafiltration is produced water and pressurizeed by the backwash water pump, and film is carried out to backwash, and the pollutent that will be deposited on the film surface by mechanical force washes away, and allows film return to approach the strainability of new film.Hyperfiltration reverse-rinsing frequency general control at 30min-60min once, each 30-60s, the flux of backwash is generally into the 3-4 of water flux doubly.
The sticky glutinous ultra-filtration membrane surface that is attached to of part material in filtration procedure, only by the mechanical force of backwash, can't remove, need by adding chemical agent, soak for some time, chemical agent is fully reacted with the pollutent on film surface, and then pollutent and remaining chemical agent are washed out in backwash.This process is ultrafiltration dosing backwash, and frequency is generally 24-36 hour once, each 20-30min, and the flux of dosing backwash is generally into 2 times of the water flux.
The backwash draining of ultrafiltration generally accounts for the approximately 7-8% left and right of flooding quantity, and ultrafiltration dosing backwash draining generally accounts for the approximately 2-3% left and right of flooding quantity, and the rate of recovery of ultrafiltration system generally reaches 90%.If by the backwash water handling reclamation of ultrafiltration, comparatively considerable from the water yield and water quality, meet the policy guidance of water-saving technology.To the general mode that hyperfiltration reverse-rinsing water is emitted that adopts in the area had abundant water resources; In the situation that the water source mode that can adopt advanced treatment hyperfiltration reverse-rinsing water in short supply obtains the higher rate of recovery, but exists the shortcoming that processing cost is higher.
Chinese patent discloses a kind of Hyperfiltering backwashing water recovery device (CN200720097074.7) and hyperfiltration reverse-rinsing water recovery processing method and device (CN200710058727.5) thereof, it is the apparatus and method of hyperfiltration reverse-rinsing draining depth processing reuse, but backwash water is not classified, be unified the processing.Because the backwash of ultrafiltration is divided into different types, the water quality of backwash draining is different, and the water quality backwash draining preferably water yield is that the dosing backwash draining water yield is about 3 times of left and right, and unified processing the after it is mixed, increased processing cost.
The utility model content
The utility model is to provide a kind of hyperfiltration reverse-rinsing draining sub-prime and processes reclaiming system, it is mainly to solve that prior art is existing is not classified to backwash water, be unified the processing, because the backwash of ultrafiltration is divided into different types, the water quality of backwash draining is different, the water quality backwash draining preferably water yield is that the dosing backwash draining water yield is about 3 times of left and right, and unified processing the after it is mixed increased the technical problem of processing cost etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of hyperfiltration reverse-rinsing draining sub-prime of the present utility model is processed reclaiming system, comprise the female pipe of hyperfiltration reverse-rinsing discharge, the female pipe of described hyperfiltration reverse-rinsing discharge is connected with respectively the first backwash bleeder, the second backwash bleeder, first, all be provided with automatic butterfly valve on the second backwash bleeder, the first backwash bleeder, the second backwash bleeder is connected with respectively the first intermediate pool, the second intermediate pool, the first intermediate pool is by the backwash recovered water pump, recovery tube is communicated with preprocessing system, the second intermediate pool is by backwash draining transferpump, transfer lime is communicated with Waste Water Treatment.
Sub-prime stores: the hyperfiltration reverse-rinsing delivery pipe is divided into to the first backwash bleeder, the second backwash bleeder, on two arms, automatic butterfly valve is set respectively, open the automatic butterfly valve of the first backwash bleeder when backwash, the automatic butterfly valve of the second backwash bleeder is closed, and the backwash draining is collected to the first intermediate pool by pipeline; Open the automatic butterfly valve of the second backwash bleeder when the dosing backwash, the automatic butterfly valve of the first backwash bleeder is closed, and dosing backwash draining is collected to the second intermediate pool by pipeline.
The reuse of backwash draining: be collected in the suspended substance and the colloid silicon that mainly contain the ultra-filtration membrane interception in the backwash draining of the first intermediate pool, water quality is better, but direct reuse is in preprocessing system (coagulative precipitation tank) water-in after the pressurization of backwash recovered water pump, can improve system recoveries rate 3%-5%, make the rate of recovery of whole ultrafiltration system reach 93%-95%.
Flow process is: hyperfiltration reverse-rinsing draining → first intermediate pool → backwash recovered water pump → (by the reuse pipe) is to preprocessing system (coagulative precipitation tank) water-in.
The processing of dosing backwash draining: be collected in suspended substance and the colloid silicon of dosing backwash draining except containing the ultrafiltration system interception of the second intermediate pool, also contain the medicaments such as acid, alkali, clorox.Ultrafiltration dosing backwash is divided into pickling and alkali cleaning, the acid-basicity difference of dosing backwash draining in the second intermediate pool, through the backwash draining transferpump arranged, pressurizeed, carry out circulation stirring by return line, dosing backwash draining is neutralized, until the pH value is comparatively stable, be neutral, again dosing backwash draining is delivered to Waste Water Treatment, at further processing, qualified discharge.
As preferably, the exit of described backwash draining transferpump arranges female pipe that refluxes, and on the female pipe of return line, sets gradually pH meter and automatic butterfly valve, and female pipe that refluxes is divided into to the bottom of the second intermediate pool the backflow arm be evenly arranged, and makes hydraulic mixing efficiently even.Return line and transfer lime all arrange automatic butterfly valve, are convenient to the switching of stirring neutralization and externally carrying.The pH meter of backwash draining transferpump and the second intermediate pool liquid level, return line is chain, when liquid level reaches high value, and starting mode of pump, the return line automatic butterfly valve is opened, and the transfer lime automatic butterfly valve is closed, and neutralization circulates; Comparatively stable when the pH meter observed value, open the transfer lime automatic butterfly valve, closing volume pipe automatic butterfly valve, be delivered to Waste Water Treatment; When liquid level reaches lower value, water pump is out of service, and automatic butterfly valve is all in closing condition.Flow process is: ultrafiltration dosing backwash draining → second intermediate pool → backwash draining transferpump → (passing through return line) circulation neutralization → (passing through transfer lime) is to industrial wastewater treatment system.
As preferably, in described the first intermediate pool, the second intermediate pool, all be provided with liquidometer.The first intermediate pool arranges liquidometer, and the backwash recovered water pump is according to liquid level signal, automatic start-stop: when liquid level reaches high value, automatically open; Be down to lower value when liquid level, automatically stop.
Therefore, the utility model overcomes prior art and the hyperfiltration reverse-rinsing draining is not carried out the shortcoming of sub-prime processing, and according to the classification of hyperfiltration reverse-rinsing process, the thinking that adopts classified storage and sub-prime to process, processed reuse to hyperfiltration reverse-rinsing water.Water quality is better, the backwash drainage collection that accounts for the about 7-8% of flooding quantity left and right is delivered to preprocessing system (coagulative precipitation tank) water-in, advantage is: can reduce the preprocessing system water withdrawal, improve the rate of recovery of ultrafiltration system, make the rate of recovery of whole ultrafiltration system improve 3%-5%, can reach 93%-95%, play the saving water resource effect; And make the water displacement of whole ultrafiltration system reduce 70%-80%, greatly reduced wastewater discharge; System with respect to advanced treatment, have cost of investment low, the advantage that operation energy consumption is little.
Water quality is poor, and the dosing backwash draining that accounts for the about 2-3% of flooding quantity left and right is delivered to Waste Water Treatment after the neutralization of collecting, circulate.Because the dosing backwash draining after neutralization almost is neutral, the principal pollutant composition is suspended substance and colloid silicon, and the system that relatively hyperfiltration reverse-rinsing water directly discharges, alleviated the load that Waste Water Treatment is brought greatly; Sub-prime independence storage characteristics, make the water yield of this part system reduce 70%-80%, greatly reduced system scale, obviously must reduce system cost.
The utility model arranges automatic butterfly valve, in-line meter, system is according to the variation of backwash step, in-line meter reading of data, automatic start-stop water pump, keying automatic butterfly valve, realize the full automatic control of native system, can accomplish unmanned, only need regularly inspection and cheek gauge, cost of labor is low, and running maintenance is very convenient.
The accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is layout schematic diagram of the utility model backflow arm.
Each parts, position and numbering in figure: the female pipe of hyperfiltration reverse-rinsing discharge the 1, first backwash bleeder 2, the second backwash bleeder 3, automatic butterfly valve 4, the first intermediate pool 5, the second intermediate pool 6, backwash recovered water pump 7, recovery tube 8, backwash draining transferpump 9, transfer lime 10, the female pipe 11 of backflow, pH meter 12, backflow arm 13, liquidometer 14.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of hyperfiltration reverse-rinsing draining sub-prime of this example is processed reclaiming system, backwash drainage collection reuse unit and dosing backwash drainage collection processing unit two portions, consists of.As shown in Figure 1, Figure 2, it comprises the female pipe 1 of hyperfiltration reverse-rinsing discharge, the female pipe of hyperfiltration reverse-rinsing discharge is connected with respectively the first backwash bleeder 2, the second backwash bleeder 3, all be provided with automatic butterfly valve 4 on first, second backwash bleeder, the first backwash bleeder 2, the second backwash bleeder 3 are connected with respectively the first intermediate pool 5, the second intermediate pool 6, the first intermediate pool is communicated with preprocessing system by backwash recovered water pump 7, recovery tube 8, and the second intermediate pool is communicated with Waste Water Treatment by backwash draining transferpump 9, transfer lime 10.The exit of backwash draining transferpump arranges female pipe 11 that refluxes, and on the female pipe of return line, sets gradually pH meter 12 and automatic butterfly valve 4, and female pipe that refluxes is divided into to the bottom of the second intermediate pool 6 the backflow arm 13 be evenly arranged.All be provided with liquidometer 14 on the first intermediate pool, the second intermediate pool.The pipeline of whole system is the UPVC pipe except the return line that accesses the second intermediate pool 6, and other are the carbon steel plastics lined pipe.
Filtering the product water stage when ultrafiltration, native system water pump and automatic butterfly valve are all in closing condition.
When ultrafiltration enters backwash step, the automatic butterfly valve 4 of the first backwash bleeder 2 is opened, and the backwash draining is collected the first intermediate pool 5 by the first backwash bleeder.The backwash recovered water pump is according to the first intermediate pool liquid level signal, automatic start-stop: when liquid level reaches high value, automatically open; Be down to lower value when liquid level, automatically stop.
When ultrafiltration enters the dosing backwash step, the automatic butterfly valve of the second backwash bleeder 3 is opened (automatic butterfly valve of the first backwash bleeder is in closing condition), and dosing backwash draining is collected the second intermediate pool 6 by the second backwash bleeder.The pH meter 12 of backwash draining transferpump and the second intermediate pool 6 liquid levels, return line is chain: when liquid level reaches high value, backwash draining transferpump starts, and the automatic butterfly valve of female pipe 11 that refluxes is opened, and the automatic butterfly valve of transfer lime 10 is closed, and neutralization circulates; Comparatively stable when the pH meter observed value, open the automatic butterfly valve of transfer lime, closing volume pipe automatic butterfly valve, be delivered to Waste Water Treatment; When liquid level reaches lower value, water pump is out of service, and automatic butterfly valve is all in closing condition.
The foregoing is only specific embodiment of the utility model, but constitutional features of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (3)
1. a hyperfiltration reverse-rinsing draining sub-prime is processed reclaiming system, comprise the hyperfiltration reverse-rinsing female pipe of discharge (1), it is characterized in that the described hyperfiltration reverse-rinsing female pipe of discharge (1) is connected with respectively the first backwash bleeder (2), the second backwash bleeder (3), first, all be provided with automatic butterfly valve (4) on the second backwash bleeder, the first backwash bleeder (2), the second backwash bleeder (3) is connected with respectively the first intermediate pool (5), the second intermediate pool (6), the first intermediate pool is by backwash recovered water pump (7), recovery tube (8) is communicated with preprocessing system, the second intermediate pool is by backwash draining transferpump (9), transfer lime (10) is communicated with Waste Water Treatment.
2. a kind of hyperfiltration reverse-rinsing draining sub-prime according to claim 1 is processed reclaiming system, the exit that it is characterized in that described backwash draining transferpump (9) arranges the female pipe (11) that refluxes, set gradually pH meter (12) and automatic butterfly valve (4) on the female pipe of return line, female pipe that refluxes is divided into to the bottom of the second intermediate pool (6) the backflow arm (13) be evenly arranged.
3. a kind of hyperfiltration reverse-rinsing draining sub-prime according to claim 1 and 2 is processed reclaiming system, it is characterized in that all being provided with liquidometer (14) on described the first intermediate pool (5), the second intermediate pool (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411536.3U CN203373222U (en) | 2013-07-11 | 2013-07-11 | Separated treatment and reuse system for ultra-filter backwash drainage water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411536.3U CN203373222U (en) | 2013-07-11 | 2013-07-11 | Separated treatment and reuse system for ultra-filter backwash drainage water |
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| Publication Number | Publication Date |
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| CN203373222U true CN203373222U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320411536.3U Expired - Lifetime CN203373222U (en) | 2013-07-11 | 2013-07-11 | Separated treatment and reuse system for ultra-filter backwash drainage water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875804A (en) * | 2021-01-07 | 2021-06-01 | 华电电力科学研究院有限公司 | Process for reducing ultrafiltration self-water utilization rate and improving water yield recovery rate |
-
2013
- 2013-07-11 CN CN201320411536.3U patent/CN203373222U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875804A (en) * | 2021-01-07 | 2021-06-01 | 华电电力科学研究院有限公司 | Process for reducing ultrafiltration self-water utilization rate and improving water yield recovery rate |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200923 Address after: No.99, Huaxing Road, Xihu District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Tiandi Environmental Protection Technology Co.,Ltd. Address before: 311203, 19 floor, building 1, Pacific Plaza, No. 451 Jincheng Road, Xiaoshan District, Zhejiang, Hangzhou Patentee before: ZHEJIANG DONGFA ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |