CN205011532U - Zero release formula of belted steel waste water is processing system again - Google Patents
Zero release formula of belted steel waste water is processing system again Download PDFInfo
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- CN205011532U CN205011532U CN201520573167.7U CN201520573167U CN205011532U CN 205011532 U CN205011532 U CN 205011532U CN 201520573167 U CN201520573167 U CN 201520573167U CN 205011532 U CN205011532 U CN 205011532U
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Abstract
The utility model discloses a zero release formula of belted steel waste water is processing system again, including bag filter, ultrafiltration device, ultrafiltration product water tank, booster pump, activated carbon filter, ultraviolet sterilizer, precision filter, first high -pressure pump and the RO device who connects gradually, RO device's the product mouth of a river connect the retrieval and utilization mouth of a river, RO device's dense water side connect gradually be provided with buffer tank, second high -pressure pump and receive and strain the device, product water reflux to the ultrafiltration of straining the device of receiving produce the water tank, the dense water side joint of straining the device of receiving go into dense water collecting box, the zero release formula again processing system still including the intercommunication buffer tank and dense water collecting box the overflow pipe and to dense water collecting box in provide the ozone generator of ozone. The utility model discloses a processing system has adopted doublestage processing apparatus again, and the preceding stage is the RO membrane, and the back level adopts receives the filter membrane, avoided the dense water high salt concentration of preceding stage RO to lead to the problem that operating pressure is high.
Description
Technical field
The utility model relates to technical field of sewage, particularly relates to a kind of zero release formula secondary treatment system with steel waste water.
Background technology
Recent year iron and steel output constantly expands, good supporting role is served to the fast development of national economy, steel industrial enterprises is again the rich and influential family of a water consumption simultaneously, the water of productive use that need of production is a large amount of, especially seriously constrains the development of steel industrial enterprises in northern China water-deficient area.This just requires that we reduce water consumption again while improving constantly output, resolves the problem of wastewater treatment and renovation.
Current domestic band steel wastewater processing technology is mainly " dosing-precipitation-filtration " qualified discharge, part solves the pollution problem of band steel waste water, but waste valuable water resources, along with environmental pollution states is more serious, done further raising to the emission standard of sewage, emission standard is risen to earth's surface five class water quality standard by the water extraction meeting terrestrial reference three grades by some areas; Relative to earth's surface five class water quality standard, the process water after the process in early stage of existing band steel waste water shows as high cod values and high ammonia nitrogen substances content, how to carry out reprocessing to the process water of band steel waste water and becomes urgent problem.
Utility model content
The purpose of this utility model is the technological deficiency for existing in prior art, and provides a kind of zero release formula secondary treatment system with steel waste water.
The technical scheme adopted for realizing the purpose of this utility model is:
A kind of zero release formula secondary treatment system with steel waste water, comprise the deep bed filter connected successively, ultra-filtration equipment, water tank is produced in ultrafiltration, topping-up pump, activated charcoal filter, ultraviolet sterilizer, accurate filter, first high-pressure pump and RO device, the product mouth of a river of described RO device takes back water nozzle, what the dense water side of described RO device connected successively is provided with buffer tank, second high-pressure pump and nanofiltration device, the product water of described nanofiltration device is back to ultrafiltration and produces water tank, the dense water side joint of described nanofiltration device enters dense water collection tank, described zero release formula secondary treatment system also comprises the overflow spout of buffer tank described in connection and dense water collection tank and in described dense water collection tank, provides the ozonizer of ozone, dense water in described dense water collection tank enters incinerator or deep bed filter prime after ozonize.
Also comprise Scale inhibitors and add mechanism, it comprises the interpolation pipeline that the tank body, volume pump and the volume pump described in connection that accommodate Scale inhibitors are exported to ultraviolet sterilizer influent side.
Also comprise backwashing mechanism, described backwashing mechanism comprises influent side and ultrafiltration and produces the backwash water pump that water tank is communicated with, by other for the water outlet of the described backwash water pump backwash pipeline being connected to the product mouth of a river of ultra-filtration equipment, and the check valve be arranged on described backwash pipeline and backwash control valve.
Also comprise pH regulator mechanism, described pH regulator mechanism comprises and all produces into water and backwater the adjustment pipeline that water tank is communicated with described ultrafiltration, be successively set on the pH meter on described adjustment pipeline, recycle pump and means for feeding acid, described means for feeding acid comprises the tank body, volume pump and the volume pump described in being communicated with that accommodate acid solution and is exported to and regulates the acid adding pipeline of pipeline, and described volume pump and topping-up pump are controlled with described pH meter to be respectively connected to realize it and to start or stop.
Also comprise online medicine cleaning device, described chemical cleaning online device comprises medicine cleaning of evaporator, wash pump in order to medicine cleaning of evaporator inner liquid medicine is washed through medicine the medicine that pipeline pumps into ultra-filtration equipment water-in side, and be communicated with the product mouth of a river of ultra-filtration equipment and the concentrated water spout water return pipeline to medicine cleaning of evaporator respectively.
Use a Retreatment method for the zero release formula secondary treatment system of band steel waste water, it is characterized in that, comprise the following steps,
1) by after pending sewage collecting successively through deep bed filter, ultra-filtration equipment, activated charcoal filter, ultraviolet sterilizer and RO device filtration treatment, the product mouth of a river of RO device is connected to reuse pipeline, the concentrated water spout of RO device access buffer tank,
2) if the dense electrical conductivity of water of RO device does not exceed threshold value, then the second high-pressure pump and nanofiltration device do not start, the dense water of RO device enters buffer memory after buffer tank, then through overflow spout overflow extremely dense water collection tank, deep bed filter prime is entered after ozonize, if the dense electrical conductivity of water of RO device meets or exceeds threshold value, then the second high-pressure pump and nanofiltration device start, dense water in buffer tank enters dense water collection tank after nanofiltration device process, then after ozonize, enters incinerator.
Described threshold value is 8000us/cm-12000us/cm.
Also comprise procedure of pH adjustment, when the water of ultrafiltration product water tank is at non-low level, recycle pump starts, and pH meter detects the inflow requirement that can the ultrafiltration potential of hydrogen of producing in water tank meet RO device, if defective, stop topping-up pump, open topping-up pump after when qualified to carry out rear class process.
Compared with prior art, the beneficial effects of the utility model are:
Secondary treatment system of the present utility model have employed twin-stage treatment unit, and prime is RO film, and rear class adopts nanofiltration membrane; Avoid the problem that prime RO dense water height salinity causes operating pressure high; And ultra-filtration equipment is set before RO film; the operating pressure of further alleviation RO film; before ultra-filtration equipment, establish deep bed filter simultaneously; can effectively to remove particulate matter in water and impurity; protection ultra-filtration membrane, extends its work-ing life, and by the concentrate recirculation of ultra-filtration equipment to sewage lagoon; utilize deep bed filter to carry out filtration treatment again, then can realize zero discharge treatment.Meanwhile, the dense water for RO device carries out selectivity process, is directly burning or get back to deep bed filter prime after ozonize, and ozone reduces the COD in water, reduces the processing load of waste water.
Accompanying drawing explanation
Figure 1 shows that the structural representation of the zero release formula secondary treatment system of band steel waste water of the present utility model;
Figure 2 shows that the part-structure schematic diagram shown in Fig. 1;
Figure 3 shows that chemical cleaning online structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Figure 1-3, the zero release formula secondary treatment system of band steel waste water of the present utility model comprises the deep bed filter 1 connected successively, ultra-filtration equipment 2, water tank 3 is produced in ultrafiltration, topping-up pump 4, activated charcoal filter 5, ultraviolet sterilizer 6, accurate filter 7, first high-pressure pump 8 and RO device 9, the sewage lagoon of the dense water access deep bed filter prime of described ultra-filtration equipment, the product mouth of a river of described RO device takes back water nozzle, what the dense water side of described RO device connected successively is provided with buffer tank 10, second high-pressure pump 11 and nanofiltration device 12, the product water of described nanofiltration device 12 is back to ultrafiltration and produces water tank 3, the dense water side joint of described nanofiltration device 12 enters dense water collection tank 13, described zero release formula secondary treatment system also comprises the overflow spout 15 of buffer tank described in connection and dense water collection tank and in described dense water collection tank, provides the ozonizer 14 of ozone, dense water in described dense water collection tank enters incinerator or deep bed filter prime after ozonize.
Secondary treatment system of the present utility model have employed twin-stage treatment unit, and prime is RO film, and rear class adopts nanofiltration membrane; Avoid the problem that prime RO dense water height salinity causes operating pressure high; And ultra-filtration equipment is set before RO film; the operating pressure of further alleviation RO film; before ultra-filtration equipment, establish deep bed filter simultaneously; can effectively to remove particulate matter in water and impurity; protection ultra-filtration membrane, extends its work-ing life, and by the concentrate recirculation of ultra-filtration equipment to sewage lagoon; utilize deep bed filter to carry out filtration treatment again, then can realize zero discharge treatment.Meanwhile, the dense water for RO device carries out selectivity process, is directly burning or get back to deep bed filter prime after ozonize, and ozone reduces the COD in water, reduces the processing load of waste water.
Preferably, also comprise Scale inhibitors and add mechanism, it comprises the interpolation pipeline that the tank body 16, volume pump and the volume pump described in connection that accommodate Scale inhibitors are exported to ultraviolet sterilizer 6 influent side.Scale inhibitors is the insoluble inorganic salt had in energy disperse water, prevention or the precipitation of interference insoluble inorganic salt in metallic surface, fouling function; and maintain the class medicament that hardware has good heat-transfer effect; this equipment, mainly in order to protect RO film, prevents it from causing irreversible infringement to film.
For ensureing the operating mode of RO device, the utility model also comprises pH regulator mechanism, described pH regulator mechanism comprises and all produces into water and backwater the adjustment pipeline 17 that water tank is communicated with described ultrafiltration, be successively set on the pH meter 18 on described adjustment pipeline, recycle pump 19 and means for feeding acid, described means for feeding acid comprises the tank body 20, volume pump and the volume pump described in being communicated with that accommodate acid solution and is exported to and regulates the acid adding pipeline of pipeline, and described volume pump and topping-up pump are controlled with described pH meter to be respectively connected to realize it and to start or stop.Produce tank parts in ultrafiltration and add a set of recycle system, be used for the pH value of the water regulated into RO, decrease occupation of land problem and Cost Problems that independent PH setting device produces.
Simultaneously, for ensureing the trouble-free operation of equipment further, for ensureing the trouble-free operation of ultra-filtration equipment, the utility model also comprises backwashing mechanism, described backwashing mechanism comprises the backwash water pump 21 that water-in is communicated with intermediate water tank, the water outlet of the back suction water pump described in connection is to the backwash pipeline 22 at the product mouth of a river of ultra-filtration equipment, and the check valve 23 be serially connected on described backwash pipeline, when carrying out backwash, backwash water flows out ultra-filtration equipment enter sump from water-in, and then is back to sewage lagoon and processes.Utilize and produce water and directly as backwash water, backwashing water is done concentrated reprocessing, effectively control integrally-built complexity, reduce the impact on environment simultaneously.
Preferably, the utility model also comprises online medicine cleaning device, described chemical cleaning online device comprises medicine cleaning of evaporator 24, wash pump 26 in order to medicine cleaning of evaporator inner liquid medicine is washed through medicine the medicine that pipeline 25 pumps into ultra-filtration equipment water-in side A point, and be communicated with the C point at the product mouth of a river of ultra-filtration equipment and the B point of the concentrated water spout water return pipeline 27 to medicine cleaning of evaporator respectively.The flux of chemical cleaning online energy device fast quick-recovery film when the short period of time shuts down, ensures the permeation rate of RO film.Ultrafiltration simultaneously and desalting plant are also all furnished with medicine cleaning device, can realize on-line cleaning film device; Do not repeat them here.
Use the Retreatment method of the zero release formula secondary treatment system of above-mentioned band steel waste water, comprise the following steps,
1) by pending sewage through sewage lagoon collect after successively through deep bed filter, ultra-filtration equipment, activated charcoal filter, ultraviolet sterilizer and RO device filtration treatment, the concentrate recirculation sewage lagoon of ultra-filtration equipment, the product water of RO device is connected to reuse pipeline, the dense water side of RO device enters buffer tank, in treating processes, pH regulator device controls the work of recycle pump, pH meter detects the pH value in current ultrafiltration product water tank, if conformance with standard, then start topping-up pump to carry out carrying to rear class, if the standard of not meeting, then start volume pump and carry out acid adding adjustment, simultaneously close topping-up pump until regulate qualified.When after the work scheduled time, ultra-filtration equipment carries out back flushing, and RO device and ultra-filtration equipment, nanofiltration device carry out chemical cleaning online, and this no longer launches to describe at this similarly to the prior art.
2) if the dense electrical conductivity of water of RO device does not exceed threshold value, described threshold value is 8000-12000us/cm, as 10000us/cm, then the second high-pressure pump and nanofiltration device do not start, the dense water of RO device enters buffer tank and carries out buffer memory, then dense water collection tank 13 is flow to through overflow spout excessive 15, the sewage lagoon of deep bed filter prime is entered after ozonize, if the dense electrical conductivity of water of RO device meets or exceeds threshold value, then the second high-pressure pump and nanofiltration device start, dense water in buffer tank enters dense water collection tank after nanofiltration device process, then after ozonize, incinerator is entered.
Namely, control point is provided with between RO device and nanofiltration device, as the dense water side at RO device arranges conductivity meter, after the dense water conductivity of RO device is more than 10000us/cm, nanofiltration device starts to start, by in buffer tank and the dense water of follow-up generation process in the lump, the dense water of nanofiltration device enters in incinerator after ozonize; When conductance is not more than 10000us/cm, dense water gets back to buffer tank, then through overflow passage overflow to dense water collection tank, after carrying out ozonize, gets back to sewage prime treatment unit, i.e. the sewage lagoon of deep bed filter prime in dense water collection tank; Adopt classification differentiated processing mode, effectively reduce resource consumption, reduce processing cost, improve treatment effect, realize the object of final zero release.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the zero release formula secondary treatment system with steel waste water, it is characterized in that, comprise the deep bed filter connected successively, ultra-filtration equipment, water tank is produced in ultrafiltration, topping-up pump, activated charcoal filter, ultraviolet sterilizer, accurate filter, first high-pressure pump and RO device, the product mouth of a river of described RO device takes back water nozzle, the dense water side of described RO device is connected with buffer tank successively, second high-pressure pump and nanofiltration device, the product water of described nanofiltration device is back to ultrafiltration and produces water tank, the dense water side joint of described nanofiltration device enters dense water collection tank, described zero release formula secondary treatment system also comprises the overflow spout of buffer tank described in connection and dense water collection tank and in described dense water collection tank, provides the ozonizer of ozone, dense water in described dense water collection tank enters incinerator or deep bed filter prime after ozonize.
2. secondary treatment system as claimed in claim 1, is characterized in that, also comprises Scale inhibitors and adds mechanism, and it comprises the interpolation pipeline that the tank body, volume pump and the volume pump described in connection that accommodate Scale inhibitors are exported to ultraviolet sterilizer influent side.
3. secondary treatment system as claimed in claim 1, it is characterized in that, also comprise backwashing mechanism, described backwashing mechanism comprises influent side and ultrafiltration and produces the backwash water pump that water tank is communicated with, by other for the water outlet of the described backwash water pump backwash pipeline being connected to the product mouth of a river of ultra-filtration equipment, and the check valve be arranged on described backwash pipeline and backwash control valve.
4. secondary treatment system as claimed in claim 1, it is characterized in that, also comprise pH regulator mechanism, described pH regulator mechanism comprises and all produces into water and backwater the adjustment pipeline that water tank is communicated with described ultrafiltration, be successively set on the pH meter on described adjustment pipeline, recycle pump and means for feeding acid, described means for feeding acid comprises the tank body, volume pump and the volume pump described in being communicated with that accommodate acid solution and is exported to and regulates the acid adding pipeline of pipeline, and described volume pump and topping-up pump are controlled with described pH meter to be respectively connected to realize it and to start or stop.
5. secondary treatment system as claimed in claim 1, it is characterized in that, also comprise online medicine cleaning device, described chemical cleaning online device comprises medicine cleaning of evaporator, wash pump in order to medicine cleaning of evaporator inner liquid medicine is washed through medicine the medicine that pipeline pumps into ultra-filtration equipment water-in side, and be communicated with the product mouth of a river of ultra-filtration equipment and the concentrated water spout water return pipeline to medicine cleaning of evaporator respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520573167.7U CN205011532U (en) | 2015-07-31 | 2015-07-31 | Zero release formula of belted steel waste water is processing system again |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520573167.7U CN205011532U (en) | 2015-07-31 | 2015-07-31 | Zero release formula of belted steel waste water is processing system again |
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| CN205011532U true CN205011532U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520573167.7U Expired - Fee Related CN205011532U (en) | 2015-07-31 | 2015-07-31 | Zero release formula of belted steel waste water is processing system again |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973724A (en) * | 2015-07-31 | 2015-10-14 | 天津邦盛净化设备工程有限公司 | Steel strip wastewater zero-discharge retreatment system and method |
| CN111847689A (en) * | 2020-07-23 | 2020-10-30 | 上海乔尼水处理设备工程有限公司 | Livestock drinking water system adopting ultrafiltration technology |
-
2015
- 2015-07-31 CN CN201520573167.7U patent/CN205011532U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973724A (en) * | 2015-07-31 | 2015-10-14 | 天津邦盛净化设备工程有限公司 | Steel strip wastewater zero-discharge retreatment system and method |
| CN111847689A (en) * | 2020-07-23 | 2020-10-30 | 上海乔尼水处理设备工程有限公司 | Livestock drinking water system adopting ultrafiltration technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20190731 |