CN204958501U - High salt pretreatment of water device - Google Patents
High salt pretreatment of water device Download PDFInfo
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- CN204958501U CN204958501U CN201520711267.1U CN201520711267U CN204958501U CN 204958501 U CN204958501 U CN 204958501U CN 201520711267 U CN201520711267 U CN 201520711267U CN 204958501 U CN204958501 U CN 204958501U
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Abstract
The utility model relates to a device of high salt solution is handled with the technological method that combines together with ozone advanced oxidation of hypergravity, the utility model provides a processing apparatus can satisfy high salt water treatment COD's demand, and COD can drop to below the 50mgL, drops to 30mgL even. The utility model discloses a but device continuous operation, the treatment effect is good, the processing time is short, it is simple to install the flow, because reinforceed the contact mass transfer of ozone with water, the ozone utilization ratio is higher, therefore can practice thrift the cost.
Description
Technical field
The utility model relates to sewage disposal association area, particularly a kind of haline water pretreatment unit.
Background technology
China's shortage of water resources, water pollutions are serious, and water surrounding faces abnormal severe situation.In the case, country has put into effect a series of policies and measures in recent years successively, as " water prevention and cure of pollution action plan " (i.e. " ten, water "), and Efforts To Develop regulating water environment.The key of water environment treatment and protection is the waste water control of industrial circle, and the key that industrial sewage is administered is: one is Sources controlling, sets about water saving from optimization commercial run, raising production technology level, reduces discharging; Two is that continuous research and development sewage purification circulation utilizes and " zero release " technology.Sewage " zero release " technology in fact for be through multiple-stage treatment reuse after remaining haline water.The utility model, for coal chemical industry haline water, provides the preconditioning technique in its " zero release " process.
The water system of Coal Chemical Industry mainly comprises circulating water system, DW system demineralized water system, produces and plant area's domestic sewage processing system, and cycle for the treatment of sewer, de-mineralized water prepare the peace and quiet sewerage of sewer.Haline water just derives from peace and quiet sewerage (reverse osmosis concentrated water), produces and plant area's sanitary sewage multiple-stage treatment reclaiming system (reverse osmosis concentrated water).Because Coal Chemical Industry production technique is different, every water-quality guideline slightly difference of haline water, but its composition is main based on organism and inorganic salts, and COD (chemical oxygen demand (COD)) is at about 100mg/L, and conductance is even higher at 5000 μ about s/cm, NH
3-N (water (waste water) in ammonia-nitrogen content index) content is extremely low, and water body sensory trait is good, limpidly reveals the exact details, without obvious peculiar smell.Such haline water can be discharged into evaporation pond or the pool of evaporating brine, and enters physical environment.Now, along with the raising of discharging standards and requirement, " zero release " process is carried out to haline water, realize whole recycling and the outer row of sewage of water, become development trend.Water quality characteristics and the processing target of haline water determine the mode that " zero release " will take " step by step concentrated+evaporative crystallization ", and membrane separation technique (mainly referring to reverse osmosis technology) realizes concentrated gordian technique means.Adopt membrane separation technique to carry out haline water to concentrate, be just necessary for film device and run the good condition of creation, softening and removal COD is the necessary preprocessing means alleviating fouling membrane.
Because salts contg is higher, should not adopt the COD in biochemical process removal haline water, physico-chemical process (mainly chemical method) must become main selection.Ozone oxidation develops a kind of chemical method water technology comparatively early, based on ozone (O
3) strong oxidizing property, for sterilization and disinfection, degraded or remove pollutent, deodorizing and decolouring.On the basis of ozone oxidation, introduce catalyzer or combine with other oxygenants or be coupled with other techniques using, development obtains ozone high grade oxidation technique (AdvancedOxidationProcesses, AOPs).AOPs process produces free radical that is a large amount of, that have stronger active and oxidisability, possesses higher contaminant degradation removal ability and speed of reaction faster, becomes a kind of efficient technology removing COD.Comprehensive above to introduce, can find: AOPs is applied to haline water " zero release " process and has broad prospects (industrial requirement is identical with technology).
Although AOPs development for many years, its in the industrial water system of reality less be applied or effect not good enough.Subject matter and reason are:
(1) current, the mainstream technology of ozone generation is that adopt corona discharge process, this process energy consumption is high, productive rate is lower, determines resources costs and the quality of AOPs with air or pure oxygen for raw material.
(2) ozone solubleness in water is lower, the mass transfer effect of conventional contacts equipment or mode (aeration) is undesirable, cause the assimilated efficiency of gas-to-liquid contact low, limit the ozone concn participating in reaction, and then limiting Pollutant Treatment effect, lower ozone utilization rate exacerbates the cost disadvantage of AOPs.In addition, the AOPs process introducing reagent beyond deozonize proposes high request to the mixing of material mass transfer, and traditional ozone contact device is also difficult competent.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of haline water pretreatment unit, to solve the problems of the prior art.
The haline water pretreatment unit that the utility model provides, comprises former water reservoir (1), supergravity reactor, ozone generation system, water outlet reservoir and medicament storage portion; The liquid outlet of described former water reservoir is connected by the fluid inlet of pipeline with described supergravity reactor; The inlet mouth of described supergravity reactor is connected by the air outlet of pipeline with described ozone generation system; The liquid outlet of described supergravity reactor is connected by the fluid inlet of pipeline with described water outlet reservoir; The liquid outlet in described water outlet reservoir and medicament storage portion is connected respectively by the fluid inlet of pipeline with gravity reactor.
Preferably, first liquid under meter is provided with between described former water reservoir and supergravity reactor; Second liquid under meter is provided with between described medicament storage portion and supergravity reactor.
Preferably, ozone concn monitor is provided with between described ozone generation system and supergravity reactor.
The method that the utility model provides can meet the demand of haline water process COD, and COD can be down to below 50mg/L, even drops to 30mg/L.Device of the present utility model can operate continuously, treatment effect is good, the treatment time is short, device flow process is simple; Owing to enhancing the contact mass transfer of ozone and water, ozone utilization rate is higher, thus can be cost-saving.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects of the present utility model, feature and advantage will be more clear, in the accompanying drawings:
Fig. 1 is treatment unit schema.
Embodiment
Hereinafter with reference to accompanying drawing, various embodiment of the present utility model is described in more detail.In various figures, identical element adopts same or similar Reference numeral to represent.For the sake of clarity, the various piece in accompanying drawing is not drawn in proportion.
The utility model is based on AOPs technique, and solve the key issue existed in its application, i.e. ozone and water contact mass transfer effect pollutant removal that is undesirable and that cause is poor, ozone utilization rate is low, proposes a kind of Coal Chemical Industry haline water pretreatment process and device thereof.
The utility model is conceived to ozone and water contact process strengthens this key point, high-gravity technology excellent for performance in mass-transfer progress strengthening is proposed to be applied to ozone high grade oxidation process (i.e. HIGEE+AOPs), and using HIGEE+AOPs as haline water pretreatment process, realize efficiently removing COD.
The utility model proposes and the technology of strengthening gas-liquid mass transfer is combined with AOPs, namely in the CENTRIFUGAL ACCELERATING FIELD pending haline water and ozone being in higher than earth gravity by specific installation (as supergravity reactor), to strengthen the mixing process of gas-liquid medium, to improve water to smelly oxygen absorption level and efficiency, and then reach the object that COD removal effect is good, ozone utilization rate is high, make proposed Coal Chemical Industry haline water pretreatment process efficient, practical.
As shown in Figure 1, the treatment unit that the utility model provides comprises former water reservoir 1, first water pump 2, supergravity reactor 3, ozone generation system 4, water outlet reservoir 5 and the second water pump 6, the liquid outlet of described former water reservoir 1 is connected by the fluid inlet of pipeline with described supergravity reactor 3, and be provided with described first water pump 2 and valve between described former water reservoir 1 and supergravity reactor 3, preferably, first liquid under meter 9 is also provided with between described former water reservoir 1 and supergravity reactor 3, the flow of described supergravity reactor 3 is entered for monitoring haline water.The inlet mouth of described supergravity reactor 3 is connected by the air outlet of pipeline with described ozone generation system 4, and be provided with valve, preferably, described supergravity reactor 3 and the connecting tube of ozone generation system 4 are provided with ozone concn monitor 11, for monitoring ozone concn.The water port of described supergravity reactor 3 is connected with described water outlet reservoir 5 by pipeline, and be provided with valve between described supergravity reactor 3 and water outlet reservoir 5, the liquid outlet of described water outlet reservoir 5 is connected with the fluid inlet of described supergravity reactor 3, and is provided with described second water pump 6 between described water outlet reservoir 5 and described supergravity reactor 3.
In another preferred embodiment, also comprise medicament storage portion 7 and the 3rd water pump 8, the liquid outlet in described medicament storage portion 7 is connected with the fluid inlet of supergravity reactor 3, and between described medicament storage portion 7 and supergravity reactor 3, be provided with described 3rd water pump 8 and valve, preferably, also be provided with second liquid under meter 10, for monitoring the flow of medicament.Described medicament storage portion 7 for adding medicament in described supergravity reactor 3.
The flow process of the treatment unit process haline water that the utility model provides is:
The haline water crossed through front end art breading is stored in described former water reservoir 1, now haline water COD is 50 ~ 300mg/L, pH value is 4 ~ 12, by described first water pump 2, the haline water in described former water reservoir 1 is delivered in described supergravity reactor 3, and monitor haline water flow by described first liquid under meter 9, and the gas controlling to enter described supergravity reactor 3 is 2 ~ 15 with liquid flow rate ratio, be preferably 5 ~ 10 (hereafter introducing in detail), simultaneously, described ozone generation system 4 feeds ozone in described supergravity reactor 3, described ozone concn monitor 11 monitors ozone concn C
1, described ozone concn C
1control between 5 ~ 200mg/L, preferably, C
1=30 ~ 80mg/L.Rotor turns in described supergravity reactor 3, form Elevated Gravity, and adults force level G is between 5 ~ 1000g, preferably, G=20 ~ 500g, (g is earth gravity acceleration), now, liquid in described supergravity reactor 3 is discrete phase gas is external phase, haline water and ozone contact reacts here, reduces COD in water.Then, the liquid in described supergravity reactor 3 enters in described water outlet reservoir 5 through water port; Gas is discharged by venting port after absorbing process.Sometimes, in order to reduce COD in water further, preferably, water in described water outlet reservoir 5 is delivered to circular treatment in described supergravity reactor 3 by described second water pump 6, water through circular treatment can directly be arranged as other equipment from the water port of described supergravity reactor 3, or reenters other equipment after entering described water outlet reservoir 5.Circular treatment number of times is 1 ~ 15 time, is preferably 5 ~ 10 times.
In another preferred embodiment, in order to reach better treatment effect, input haline water and ozone in described supergravity reactor 3 while, by described 3rd water pump 8, the medicament in described medicament storage portion 7 is inputted in described supergravity reactor 3, and the flow of medicament is monitored by described second liquid under meter 10, described medicament can be selected containing ferrous ion reagent (as ferrous sulfate) or Fenton reagent (ferrous ion+hydrogen peroxide) etc., if add thing for containing ferrous ion reagent, ferrous ion concentration controls at 0 ~ 1mmol/L, preferably 0.1 ~ 0.5mmol/L, if adding thing is Fenton reagent, ferrous ion concentration controls at 0 ~ 1mmol/L, and concentration of hydrogen peroxide is 1 ~ 150 times of ferrous ion concentration, preferably 5 ~ 20 times.
Specific experiment data are as table 1:
As can be seen from data in table 1, the COD in water can be can be controlled in below 50mg/L by the treatment process that the utility model provides, and meets into film device requirement, enters subsequent processing units.Compared with traditional bubbling contact process (by the 2nd compared with the 21st row): other condition is identical, produce water COD (treatment effect) close when, ozone bubbling (aeration) method need make ozone contact 25min with water, and the inventive method only needs circulation 6 times, and (each duration of contact is less than 1s, total duration of contact is at below 6s), substantially increase processing efficiency, correspondingly significantly decrease ozone usage needed for the process unit water yield, saved cost.Treatment process provided by the invention can operate continuously, treatment effect is good, the treatment time is short, device flow process is simple; Owing to enhancing the contact mass transfer of ozone and water, ozone utilization rate is higher, thus can be cost-saving.
Should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (3)
1. a haline water pretreatment unit, it is characterized in that, comprise former water reservoir (1), supergravity reactor (3), ozone generation system (4), water outlet reservoir (5) and medicament storage portion (7); The liquid outlet of described former water reservoir (1) is connected by the fluid inlet of pipeline with described supergravity reactor (3); The inlet mouth of described supergravity reactor (3) is connected by the air outlet of pipeline with described ozone generation system (4); The liquid outlet of described supergravity reactor (3) is connected by the fluid inlet of pipeline with described water outlet reservoir (5); The liquid outlet of described water outlet reservoir (5) and medicament storage portion (7) is connected respectively by the fluid inlet of pipeline with gravity reactor (3).
2. haline water pretreatment unit according to claim 1, is characterized in that, is provided with first liquid under meter (9) between described former water reservoir (1) and supergravity reactor (3); Second liquid under meter (10) is provided with between described medicament storage portion (7) and supergravity reactor (3).
3. haline water pretreatment unit according to claim 1, is characterized in that, is provided with ozone concn monitor (11) between described ozone generation system (4) and supergravity reactor (3).
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| CN201520711267.1U CN204958501U (en) | 2015-09-14 | 2015-09-14 | High salt pretreatment of water device |
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| CN201520711267.1U CN204958501U (en) | 2015-09-14 | 2015-09-14 | High salt pretreatment of water device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084518A (en) * | 2015-09-14 | 2015-11-25 | 北京万邦达环保技术股份有限公司 | High-salinity water pretreatment method and device |
| CN107814449A (en) * | 2016-09-13 | 2018-03-20 | 神华集团有限责任公司 | A kind of processing method of brine waste |
| CN107867752A (en) * | 2016-09-27 | 2018-04-03 | 北京万邦达环保技术股份有限公司 | A kind of circulating sewage processing method and processing device |
-
2015
- 2015-09-14 CN CN201520711267.1U patent/CN204958501U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084518A (en) * | 2015-09-14 | 2015-11-25 | 北京万邦达环保技术股份有限公司 | High-salinity water pretreatment method and device |
| CN107814449A (en) * | 2016-09-13 | 2018-03-20 | 神华集团有限责任公司 | A kind of processing method of brine waste |
| CN107867752A (en) * | 2016-09-27 | 2018-04-03 | 北京万邦达环保技术股份有限公司 | A kind of circulating sewage processing method and processing device |
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