CN100408493C - Sewage treating system with changeable water treating process - Google Patents
Sewage treating system with changeable water treating process Download PDFInfo
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- CN100408493C CN100408493C CNB2006100113081A CN200610011308A CN100408493C CN 100408493 C CN100408493 C CN 100408493C CN B2006100113081 A CNB2006100113081 A CN B2006100113081A CN 200610011308 A CN200610011308 A CN 200610011308A CN 100408493 C CN100408493 C CN 100408493C
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Abstract
The present invention provides a sewage treating system with changeable water treating processing sequence, which comprises a sand filtration device, an ultrafiltration device which is connected with a water outlet of the sand filtration device through the first valve, an active carbon filtration device which is connected with a water outlet of the ultrafiltration device through the second valve, the first pipe part which comprises the fourth valve, the second pipe part which comprises the fifth valve, and the third pipe part which comprises the sixth valve. The water outlet of the active carbon filtration device discharges to the next processing unit through the third valve. One end of the first pipe part is connected with a water inlet of the ultrafiltration device, and the other end of the first pipe part is connected with a water inlet of the active carbon filtration device; one end of the second pipe part is connected with the water inlet of the ultrafiltration device, and the other end of the second pipe part is connected with the water outlet of the active carbon filtration device; one end of the third pipe part is connected with the water outlet of the ultrafiltration device, and the other end of the third pipe part is connected with the water outlet of the active carbon filtration device. The present invention can select a process flow flexibly, the water production quality is guaranteed, and the cost and the device space are saved.
Description
Technical field
The present invention relates to a kind of sewage treating system with changeable water treating process, relate in particular to a kind of can the flexible activated carbon filtration and the sewage treating system with changeable water treating process of ultrafiltration workflow, belong to the Sewage treatment systems technical field.
Background technology
Industrial sewage recycling technology is through years of development, and basic technical process is comparative maturity.Generally speaking, Sewage treatment systems can be divided into three parts: be respectively pretreatment unit, reverse osmosis units and electric desalting unit.Wherein the effect of pretreatment unit is the process spent water that manufacturer produces is comprised the processing of flocculation, precipitation, filtration, makes industrial sewage convert the comparatively middle water of cleaning to, so that carry out desalting treatment in reverse osmosis units.
Because the key of reverse osmosis units work is the work effect of reverse osmosis membrane, therefore, keeping the works fine state of reverse osmosis membrane is a crucial thing.Reverse osmosis membrane is after normal operation for some time, and the suspended substance that may exist in can being fed water or the pollution of difficulty soluble salt acquire a certain degree in case pollute, for example when water production rate reduction by 15%, ratio of desalinization descends 10%, and pressure reduction increases by 0% when above, just tackles reverse osmosis membrane and in time cleans.In the practice, clean reverse osmosis membrane and be the work of a not only time-consuming but also effort.
In order to prolong the work-ing life of reverse osmosis membrane, an effective means is the feed-water quality that improves reverse osmosis membrane.This carries out more fruitful work with regard to requiring the pretreatment unit in the Sewage treatment systems, and impurity as much as possible is stoped in pretreatment unit.
In existing Sewage treatment systems pretreatment unit, generally adopt the process program of sand filtration (or video disc filtration etc.)+ultra-filtration membrane.Sand filtration has mechanical sieving effect, the organism in can obvious degradation water, nitrogen, phosphorus, nitrate etc.Ultra-filtration membrane can stop passing through of polymer substance, colloidalmaterial etc.In order further to improve, can in pretreatment unit, increase an activated charcoal filter to organic filter effect.Usually, be the effect that utilizes charcoal absorption macrobead particle, it is arranged on the ultrafiltration front end.In application number is 200510038670.3 Chinese patent application, increased a technical scheme that plays the gac of adsorption filtration effect with regard to the front end that has disclosed at ultrafiltration system.
Specifically describe below with reference to Fig. 2 and Fig. 3.Fig. 2 is the first activated carbon filtration structural representation of ultrafiltration again in the conventional art pretreatment unit.Through the water of sand filtration, enter activated carbon filtration through valve 1, and then the outlet of process activated charcoal filter, enter ultrafiltration apparatus through valve 2.At last, the water of process ultrafiltration enters the next stage processing unit by valve 3, and for example reverse osmosis units and electric desalting unit form at last and produce water.Fig. 3 is the first ultrafiltration structural representation of activated carbon filtration again in the conventional art pretreatment unit.Through the water of sand filtration, enter ultrafiltration through valve 1, and then the outlet of process ultra filtration filter, enter activated carbon filtration equipment through valve 2.At last, the water of process activated carbon filtration enters the next stage processing unit by valve 3, and for example reverse osmosis units and electric desalting unit form at last and produce water.
In the water technology, after gac can be placed on ultrafiltration, also have before the ultrafiltration of being placed on.Two kinds of technical process all are extensive use of, but because this type of equipment volume is huge, are difficult to carry out the front and back adjustment of technology after the installation.In case originally unreasonable being difficult to of Xuan Ding flow process readjusted.Just, in the pretreatment unit of these conventional arts,, just can not change again in case in conceptual design, selected the first activated carbon filtration structure of ultrafiltration or the first ultrafiltration structure of activated carbon filtration more again according to influent quality.In these conventional arts, just selected the fixed pretreatment mode according to the Sewage treatment systems influent quality.For example application number be 200510038670.3 Chinese patent application introduce like that, carry out water treatment with ultrafiltration again with gac earlier.Because technical costs or influent quality, conventional art can't utilize a cover ultrafiltration apparatus and a cover activated carbon treatment equipment to realize two kinds of processing schemes neatly according to influent quality: activated carbon treatment after uf processing or the first ultrafiltration behind the first gac.
Summary of the invention
The invention provides the changeable Sewage treatment systems of a kind of water technology order, it can select technical process neatly, guarantees to produce quality, saves cost, saves the device space.
For achieving the above object, the invention provides the changeable Sewage treatment systems of a kind of water technology order, it comprises: sand filtration equipment, and it connects the water-in of Sewage treatment systems;
Ultrafiltration apparatus, it connects the water outlet of described sand filtration equipment by the 1st valve;
Activated carbon filtration equipment, it connects the water outlet of described ultrafiltration apparatus by the 2nd valve, and the water outlet of described activated carbon filtration equipment by the 3rd Valved discharge to the next stage processing unit;
The first pipe portion, it comprises the 4th valve, and the one end connects described ultrafiltration apparatus water-in, the other end connects the water-in of described activated carbon filtration equipment;
The second pipe portion, it comprises the 5th valve, and the one end connects described ultrafiltration apparatus water-in, the other end connects the water outlet of described activated carbon filtration equipment; And
The 3rd pipe portion, it comprises the 6th valve, and the one end connects described ultrafiltration apparatus water outlet, the other end connects the water outlet of described activated carbon filtration equipment.
Aforementioned ultrafiltration apparatus and activated carbon filtration equipment also can exchange.Thus, can realize selecting suitable filtration process flow process flexibly, switch between the two in the technical process of sand filtration+ultrafiltration+activated carbon filtration and the technical process of sand filtration+activated carbon filtration+ultrafiltration according to influent quality.Because the present invention utilizes a cover sand filtration equipment, ultrafiltration apparatus and activated carbon filtration equipment to realize two kinds of transition technical process, has improved the product quality, has saved the cost and the device space.
Description of drawings
Below with reference to accompanying drawing specify of the present invention can the flexible activated carbon filtration and the Sewage treatment systems pretreatment unit of ultrafiltration job order.
Fig. 1 is among the present invention, the structural representation of activated carbon filtration equipment and ultrafiltration apparatus in the pretreatment unit.
Fig. 2 is the first activated carbon filtration structural representation of ultrafiltration again in the pretreatment unit of conventional art.
Fig. 3 is the first ultrafiltration structural representation of activated carbon filtration again in the pretreatment unit of conventional art.
Embodiment
As shown in Figure 1, in Sewage treatment systems pretreatment unit of the present invention, comprise the sand filtration equipment that is connected with water-in, the ultrafiltration apparatus that is connected with sand filtration equipment water outlet process valve 1, and pass through the activated carbon filtration equipment that valve 2 is connected with ultrafiltration apparatus.This part structure can be with conventional art the same, be provided with according to the pretreatment system influent quality.Shown in thick line among Fig. 1, near valve 1, valve 4 has connected the water-in of ultrafiltration system and the water-in of activated carbon filtration equipment, and simultaneously, valve 5 couples together the water-in of ultrafiltration apparatus and the water outlet of activated carbon filtration equipment; Moreover, be connected with the water outlet of activated carbon filtration equipment by the water outlet of valve 6 ultrafiltration apparatus.As can be seen, the water inlet of ultrafiltration apparatus and activated carbon filtration equipment is connected respectively to the water outlet of sand filtration by valve 1 and 4; The water outlet of ultrafiltration apparatus and activated carbon filtration equipment is connected respectively to down the delivery port of pretreatment unit by valve 6, i.e. next stage processing unit is as the ingress of reverse osmosis units.And the water outlet of activated carbon filtration equipment also is connected by valve 5 with the water inlet of ultrafiltration apparatus.
Wherein, as shown in Figure 1, the tie point of the water inlet of valve 5 place pipelines and ultrafiltration apparatus is positioned at after the valve 1, and the tie point of water inlet that also is valve 5 and ultrafiltration apparatus is between the water inlet of valve 1 and ultrafiltration apparatus.The other end of valve 5 place pipelines is connected with the water outlet of activated carbon filtration equipment, and this tie point is between the water outlet and valve 3 of activated carbon filtration equipment.The tie point of valve 4 place pipelines, one end and activated carbon filtration equipment water inlet is between valve 2 and activated carbon filtration equipment water inlet, the tie point of its other end and ultrafiltration apparatus water inlet promptly is positioned at the side away from the ultrafiltration apparatus water inlet of valve 1 between valve 1 and sand filtration equipment water outlet.Valve 6 place pipelines one end is connected with the ultrafiltration apparatus water outlet, and this tie point is between ultrafiltration apparatus water outlet and valve 2; And the tie point of the valve 6 place pipeline the other ends and activated carbon filtration equipment water outlet is positioned at after the valve 3.The position relation of above-mentioned valve also can be made change according to practical situation.For instance, the tie point of valve 5 and the water outlet of activated carbon filtration equipment, just can change into after valve 3 and the tie point of valve 6 and activated carbon filtration equipment water outlet before.If like this, during switching described later, the switch situation of valve 3 slightly is different from connection situation shown in Figure 1.Because this is easy to realize, so be not described in detail in this.
Be appreciated that the present invention also can realize if ultrafiltration apparatus among Fig. 1 and activated carbon filtration device location are exchanged (not shown).That is, again on the basis of the scheme of ultrafiltration, the water inlet of ultrafiltration apparatus and activated carbon filtration equipment is connected respectively to the water outlet of sand filtration by valve 1 and 4 at original first activated carbon filtration; The water outlet of ultrafiltration apparatus and activated carbon filtration equipment is connected respectively to down the delivery port of pretreatment unit by valve 6, and the water outlet of ultrafiltration apparatus connects the water inlet of activated carbon filtration equipment by valve 5.
By above-mentioned explanation, can see, the present invention had both gone on the basis of the treatment system of activated carbon filtration after original first ultrafiltration, by increasing connecting pipeline and switch valve 1 to 6, water inlet, the water outlet of ultrafiltration apparatus and activated carbon filtration equipment are connected respectively, and connect the water inlet of ultrafiltration apparatus and the water outlet of activated carbon filtration equipment; The present invention also goes on the basis of the treatment system of ultrafiltration behind original first activated carbon filtration, by increasing connecting pipeline and switch valve 1 to 6, water inlet, the water outlet of ultrafiltration apparatus and activated carbon filtration equipment are connected respectively, and connect the water outlet of ultrafiltration apparatus and the water inlet of activated carbon filtration equipment.Therefore, only be to increase the selection that connecting pipeline and switch valve cheaply just can be realized the filtering scheme of ultrafiltration behind activated carbon filtration after two kinds of first ultrafiltration or the first activated carbon filtration simply.
It is pointed out that the present invention is simple for what describe, only introduced sand filtration equipment, ultrafiltration apparatus and activated carbon filtration equipment.Yet, between aforementioned device, still may increase other equipment according to the actual needs.Therefore, under the prerequisite of passing through valve 1 to 6 parallel connection activated carbon filtration equipment and ultrafiltration apparatus that the present invention proposes, between valve 1 and the sand filtration equipment water outlet, perhaps between valve 1 and the ultrafiltration apparatus water inlet, and can add other treatment unit as required between valve 4 and the activated carbon filtration equipment water inlet, as filtering membrane, washing unit etc.In like manner, also can add other treatment unit between the tie point of valve 2 to 6 and corresponding activated carbon filtration equipment or ultrafiltration apparatus.
If the present invention is described by switch valve 1-6, realize the selection of the filtering scheme of ultrafiltration behind activated carbon filtration after two kinds of first ultrafiltration or the first activated carbon filtration neatly below in conjunction with Fig. 1.
According to variation water quality situation in service, select suitable filtering scheme: when larger molecular organics is high, ultrafiltration can be chosen in gac before, further reduce the organism saliferous, pass through gac again, can prolong the gac life-span; When if low molecule organic matter is high in the organism, ultrafiltration can not have been removed.The gac device is moved before ultrafiltration.The ultrafiltration water outlet is good, the pollutant effect next stage equipment that can avoid gac to produce, for example, reverse osmosis system.
According to above-mentioned condition, after the selected first ultrafiltration during technical process of activated carbon filtration, promptly as shown in Figure 1, pretreatment unit of the present invention is opened valve 1, valve 2 and valve 3 during by sand filtration+ultrafiltration+activated carbon process process flow operation, and valve-off 4-6.At this moment, because valve 1 unlatching and valve 4 and valve 5 are closed, the water of process sand filtration all enters the water inlet of ultrafiltration apparatus through valve 1, carry out uf processing.Because valve 2 unlatchings and valve 4 and valve 6 are closed, the water of process ultrafiltration all flows into the activated carbon filtration equipment from the ultrafiltration apparatus water outlet through valve 2.The filtration treatment of process activated carbon filtration equipment, the valve 3 that water is opened from activated carbon filtration equipment water outlet process flows into the next stage processing units, and valve 3 unlatchings this moment still valve 5 are closed.By said process, realized sand filtration+ultrafiltration+activated carbon process flow process.
On the other hand, behind selected first activated carbon filtration during the technical process of ultrafiltration, pretreatment unit promptly of the present invention is opened valve 4,5 and 6 during by sand filtration+gac+ultrafiltration technology process flow operation, and valve-off 1-3.At this moment, because valve 4 opens and valve 1 and 2 is closed,, carry out filtration treatment so all flow through the water inlet that valve 4 enters activated carbon filtration equipment through the water of sand filtration.Because valve 5 unlatchings and valve 3 and valve 1 are closed, the water of process activated carbon filtration all flows into ultrafiltration apparatuss from activated carbon filtration equipment water outlet through valve 5.Because valve 2 is closed and valve 6 is opened, the water of handling through ultrafiltration apparatus all flows into the next stage processing unit through the valve of opening 6 from the ultrafiltration apparatus water outlet.By said process, realized sand filtration+gac+ultrafiltration technology flow process.
If ultrafiltration apparatus among Fig. 1 and activated carbon filtration device location are exchanged (not shown), the switching of above-mentioned valve also can realize sand filtration+gac+ultrafiltration technology flow process or sand filtration+ultrafiltration+activated carbon process flow process, its essence and above-mentioned valve switch similar, this not tired stating.
The opening and closing of above-mentioned each valve can be achieved by PLC (Programmable LogicController, PLD) control.This control techniques is apparent and easy to know for those of ordinary skill, does not give unnecessary details at this.
In addition, the present invention has described in the pretreatment unit technical process between the ultrafiltration apparatus and activated carbon filtration equipment to switch.Those of ordinary skill is also expected changing water treating equipment order in technical process that dual serial be connected by increasing the part pipeline with valve with of the present invention easily.
The present invention is in the technical process of sewage disposal, can be according to the situation of water quality and equipment operation, technical process is switched easily, utilize a cover Sewage treatment systems pretreatment unit to realize sand filtration+gac ten ultrafiltration technology flow processs or sand filtration+ultrafiltration+activated carbon process flow process.Save cost, save the device space, select technical process neatly, guarantee to produce quality.
Under the prerequisite that does not break away from the present invention's spirit and thought, also can do various changes and modifications to the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. the changeable Sewage treatment systems of water technology order, it comprises:
First filter house, it connects the water-in of Sewage treatment systems;
Second filter house, it connects the water outlet of described first filter house by the 1st valve;
The 3rd filter house, it connects the water outlet of described second filter house by the 2nd valve, and the water outlet of described the 3rd filter house by the 3rd Valved discharge to the next stage processing unit;
The first pipe portion, it comprises the 4th valve, and the one end connects the described second filter house water-in, the other end connects the water-in of described the 3rd filter house;
The second pipe portion, it comprises the 5th valve, and the one end connects the described second filter house water-in, the other end connects the water outlet of described the 3rd filter house; And
The 3rd pipe portion, it comprises the 6th valve, and the one end connects the described second filter house water outlet, the other end connects the water outlet of described the 3rd filter house.
2. Sewage treatment systems as claimed in claim 1 is characterized in that: the tie point that the described first pipe portion is connected with the described second filter house water-in is between described first filter house water outlet and described the 1st valve.
3. Sewage treatment systems as claimed in claim 2 is characterized in that: the tie point that the described first pipe portion is connected with the water-in of described the 3rd filter house is between described the 3rd filter house water-in and described the 2nd valve.
4. Sewage treatment systems as claimed in claim 1 is characterized in that: the tie point that the described second pipe portion is connected with the described second filter house water-in is between described second filter house water-in and described the 1st valve.
5. Sewage treatment systems as claimed in claim 4 is characterized in that: the tie point that the described second pipe portion is connected with the water outlet of described the 3rd filter house is between described the 3rd filter house water outlet and described the 3rd valve.
6. Sewage treatment systems as claimed in claim 1, it is characterized in that: the tie point that described the 3rd pipe portion is connected with the described second filter house water outlet is between described second filter house water outlet and described the 2nd valve, and the tie point that described the 3rd pipe portion is connected with the water outlet of described the 3rd filter house is positioned at after described the 3rd valve.
7. Sewage treatment systems as claimed in claim 1 is characterized in that: described first filter house is a sand filtration equipment; Described second filter house is a ultrafiltration apparatus; Described the 3rd filter house is an activated carbon filtration equipment.
8. Sewage treatment systems as claimed in claim 1 is characterized in that: described first filter house is a sand filtration equipment; Described second filter house is an activated carbon filtration equipment; Described the 3rd filter house is a ultrafiltration apparatus.
9. Sewage treatment systems as claimed in claim 1 is characterized in that: also be provided with water treatment device between the described valve and between valve and each filter house water outlet and the water-in.
10. Sewage treatment systems as claimed in claim 1 is characterized in that: described first filter house, second filter house and the 3rd filter house are the integral parts of reverse-osmosis treated unit or electric desalting processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100113081A CN100408493C (en) | 2006-01-28 | 2006-01-28 | Sewage treating system with changeable water treating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100113081A CN100408493C (en) | 2006-01-28 | 2006-01-28 | Sewage treating system with changeable water treating process |
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| CN1810659A CN1810659A (en) | 2006-08-02 |
| CN100408493C true CN100408493C (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100113081A Expired - Fee Related CN100408493C (en) | 2006-01-28 | 2006-01-28 | Sewage treating system with changeable water treating process |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798128B (en) * | 2010-04-10 | 2012-07-04 | 龙口煤电有限公司 | Underground movable reverse osmosis water treating equipment and treating process thereof for coal mine |
| CN101947398B (en) * | 2010-09-03 | 2012-05-09 | 国核电力规划设计研究院 | Precision filtering device and method for finely processing condensation water from nuclear power station |
| CN110054328A (en) * | 2019-05-30 | 2019-07-26 | 岭东核电有限公司 | Membrane component liquid waste treatment system |
| CN113480031A (en) * | 2021-06-22 | 2021-10-08 | 南通大学 | Integrated switchable graded filler catalytic adsorption device and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104611A (en) * | 1981-12-18 | 1983-06-22 | Furukawa Mining Co Ltd | Filter |
| JPH0231200A (en) * | 1988-07-21 | 1990-02-01 | Ebara Corp | Backwash method of hollow-string film filter |
| CN2249750Y (en) * | 1995-08-16 | 1997-03-19 | 马彰原 | Bactericidal filtering water-purifier |
-
2006
- 2006-01-28 CN CNB2006100113081A patent/CN100408493C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104611A (en) * | 1981-12-18 | 1983-06-22 | Furukawa Mining Co Ltd | Filter |
| JPH0231200A (en) * | 1988-07-21 | 1990-02-01 | Ebara Corp | Backwash method of hollow-string film filter |
| CN2249750Y (en) * | 1995-08-16 | 1997-03-19 | 马彰原 | Bactericidal filtering water-purifier |
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| CN1810659A (en) | 2006-08-02 |
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