CN103708581A - Technology for efficiently treating mine water by using ceramic membrane - Google Patents
Technology for efficiently treating mine water by using ceramic membrane Download PDFInfo
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- CN103708581A CN103708581A CN201310674371.3A CN201310674371A CN103708581A CN 103708581 A CN103708581 A CN 103708581A CN 201310674371 A CN201310674371 A CN 201310674371A CN 103708581 A CN103708581 A CN 103708581A
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Abstract
The invention relates to a technology for efficiently treating mine water by using a ceramic membrane, and belongs to the water treatment field. The technology comprises the following steps: 1, carrying out homogenous and equal quantity adjustment treatment of mine water for treatment; 2, adding an acid to the supernatant obtained in step 1, allowing the acid added supernatant to enter a ceramic membrane ultrafiltration system for ultrafiltration, and introducing a gas in the ultrafiltration process to carry out reinforced filtration; and 3, directly reusing or carrying out depth treatment of the above obtained ceramic membrane clear liquid after the clear liquid reaches standards, discharging an ultrafiltation ceramic membrane liquid concentrate to an adjustment pool after the ultrafiltation ceramic membrane liquid concentrate is concentrated to a certain concentration in order to carry out settlement separation, carrying out frame press filtration of precipitated sludge, discharging the filtered sludge, and allowing the clear liquid obtained after the sludge press filtration to enter the adjustment pool for circulation treatment. The ceramic membrane ultrafiltration system is the core and ensures the continuity of the process and the standard reaching discharge of produced water, and a gas feeding and acid feeding system is the characteristic of the technology in the invention different from other mine water membrane treatment technologies, greatly improves the penetration flux and the water recovery rate of the ceramic membrane, improves the mine water treatment efficiency of the ceramic membrane, reduces the investment and the running cost, and has substantial environmental and economic benefits.
Description
Technical field
The present invention relates to a kind of efficient ceramic membrane and process the technique of pit water, relate in particular to a kind of technique that adopts acid adding adjust pH and ventilation intensified ceramic membrane filtration to improve pottery membrane flux and efficiency, belong to field of waste water treatment.
Background technology
Technique of Coal Mine Drainage is important water resources, it is reported in current coal in China production process, discharges every year approximately 20～3,000,000,000 m
3pit water, wherein northern area accounts for 60%, and increases year by year along with the increase of the coal mining degree of depth.But the utilization ratio of China's coal-mine mine water resource is less than 20% now.On the other hand, Ye Shi poor-water district often, the area of the mining area serious water shortage of China 40%, and rich coal according to statistics.Along with the increasing of coal mining intensity and improving constantly of extension speed, groundwater in mining area position declines big area, is supplied water in lack of water mining area more nervous, thereby affects local resident's normal production and life, has restricted the development of coal production.
Due to the difference of different areas geologic framework and lithology, make pit water water quality difference larger, according to the essential substance containing in pit water, can be divided into: mine water containing suspended substances, highly-mineralized mine water, acid mine water, containing the pit water of radioelement etc.Deacidification washup well water and containing outside the pit water of radioelement, generally contains in the pit water of other two classes that to take coal petrography powder be main suspended substance and soluble inorganic salts, and Organic pollutants are less and generally containing toxic substance.Therefore, pit water is carried out to purifying treatment reuse, will produce huge economic benefit and social benefit.
Processing be take coal petrography powder as the main high pit water of suspended substance solid content, generally adopts flocculating settling technique, finally by Double-filter material filter, adds the degree that activated carbon filtration just can reach middle water reuse discharge again.Although but that this method is invested is little, running cost is low, but also there are the problems such as floor space is large, effluent quality is unstable simultaneously, especially when there is fluctuation in raw water quality, as the red pit water that in water, rock dust concentration is higher, granularity is less than normal, iron level is bigger than normal, occur in water that suspended substance cannot flocculating settling, cause that effluent quality is muddy, flocculation agent consumption result bigger than normal, not only increased running cost, and the water outlet after processing cannot reach emission standard, produced environmental issue.
The mine water treatment technique that the membrane sepn of take is Main Means, in the development of film industry in recent years also again and again for mine water treatment technique.The patents such as CN101890258 A, CN202744409 U and CN202766374 U have all adopted respectively film or barrier separation integral process to process the object that pit water reaches the rear reuse of processing.But in these patented technologies, all just mention that film is used as a separating unit, and film wherein polluted and the control of film pollution does not all relate to especially how, improve on the processing efficiency of film and membrane permeation flux all not mentioned.In fact, membrane sepn process is that a film pollutes the process constantly increasing.Because in to solid-liquid, colloid separation, in the dope being trapped, solids content constantly increases, produced concentration polarization and face deposition, Here it is, and film pollutes.Along with the carrying out of process, it is increasing that this film pollutes negative effect, and the permeation flux of film only can be more and more lower.To finally having to stop because energy consumption is too high regeneration membrane.Therefore, how during the course controlling diaphragm pollution is the primary factor that must consider in membrane sepn process.
On the other hand, membrane separation technique is novel isolation technique means, although it is effective to process pit water, not limited by the fluctuation of mine water quality.But in use compare with traditional technology, its high energy consumption, invest the problem such as large and also day by day highlight, especially the one-time investment of ceramic membrane and relative high running cost are hung back many pit waters enterprise.Therefore improve the processing efficiency of ceramic membrane, the running cost that reduces ceramic membrane just becomes ceramic membrane in a key of pit water process field.
In view of this, special proposition the present invention.
Summary of the invention
The object of the invention is to utilize membrane separation technique to process pit water, and on prior art basis, increase acid adding adjust pH and pass into gas reinforced film filtration process and come the film in controlling diaphragm process to pollute, with this, improve the permeation flux in membrane process, thereby improve membrane filtration efficiency.Adopt this technique, not only improved effluent quality and permeation flux, and improved the cycles of concentration of pit water, the pit water solids concn in dope is improved.Thereby reduced investment and running cost, brought significant economy and environment benefit to the processing of pit water.
Traditional pit water is processed the technique of suspended substance, the methods that adopt flocculation sediment to add multi-medium filtering more, these methods are resultful to the coal mine water treatment of ripe water conditioning, but just seem and be difficult to process for primary recovery and the unsettled pit water of water quality, admittedly more tiny containing composition granule in pit water on the one hand, size distribution major part concentrates on 4 ~ 7 μ m, be difficult to precipitation and filter, the material that in pit water, iron level is high on the other hand forms colloid in pit water, adopt conventional flocculation process to be difficult to sedimentation, even if sedimentation has also increased flocculation agent consumption, extended the settling time, thereby making to adopt original technique is not very desirable except admittedly containing thing effect.And ceramic super-filtering film is to belong to high precision level other filters, for the removal of suspended substance, there is the removal ability of its uniqueness, because of but a desirable separation means.But compare with traditional technology, ceramic membrane is because the factors such as investment is large, running cost is high delay for the processing of pit water.The economic bottleneck filtering for pit water for breaking through ceramic membrane, the present invention is by passing into gas reinforced film process in acid adding adjust pH and membrane process, controlling diaphragm pollutes to improve the processing efficiency of pit water, has greatly improved the permeation flux of ceramic membrane, by original 175L/m
2.h maintain one day, rise to 366L/m
2.h maintain a week, reduced investment and the running cost of ceramic membrane, permeation flux has increased 1 times, and cycles of concentration has also obtained significant raising.Greatly reduce the floor space for the treatment of process, and effluent characteristics is very good, can depths reason or reuse.
The present invention has broken through an economic bottleneck of ceramic membrane processing pit water, and the technology that makes ceramic membrane process pit water becomes possibility economically.In process, first at equalizing tank, carry out pre-sedimentation, remove large particle.Then in the pipeline that enters ceramic membrane system, mix and add acid, destroy the colloidal dispersion in pit water, reduce the pollution to ceramic membrane, be convenient to the ultrafiltration of ceramic membrane.Finally, in ceramic membrane ultrafitration process, in the bottom of assembly, add gas, ceramic membrane process carried out to intensive filtration, so not only because film pollution has been controlled in the effect of biphase gas and liquid flow, and improved pit water can cycles of concentration.Greatly improve the permeation flux of ceramic membrane filter, thereby improved efficiency and the level of ceramic membrane filter.
Particularly, for realizing the object of the invention, the present invention adopts following technical scheme:
Efficient ceramic membrane is processed a technique for pit water, comprising: step 1: by pending pit water through homogeneous and all amount regulate processing; Step 2: step 1 gained supernatant liquor enters the ultrafiltration of ceramic membrane ultrafitration system after acid adding, passes into gas and carries out intensive filtration in ultra-filtration process; Step 3: can direct reuse or depths reason after ceramic membrane clear liquid after ultrafiltration is up to standard; Ceramic membrane dope after ultrafiltration becomes high solids content dope and enters equalizing tank again and carry out settlement separately after being concentrated to finite concentration, and the mud after precipitation is discharged after filter press, and the clear liquid that press filtration mud obtains enters equalizing tank circular treatment.
In above-mentioned steps 1, in step 1, utilize equalizing tank all to measure with homogeneous and regulate, described equalizing tank possesses the regulating effect of water quality and the water yield on the one hand, stablizes the influent quality of ceramic membrane ultrafitration process, reduce the water inlet solid content of ceramic membrane ultrafitration process, play Effect of Pretreatment; On the other hand, have the effect of settling tank concurrently, object is that granularity in the former water of the ceramic membrane dope of high solids content and pit water is become to mud and discharge system compared with large solid settlement, and the mud precipitating enters filter press, and supernatant liquor enters ceramic membrane ultrafitration system and carries out ultrafiltration after acid adding.
Efficient ceramic membrane of the present invention is processed the technique of pit water, in step 2 by the supernatant liquor of step 1 through the laggard ceramic membrane ultrafitration of line-blending acid adding, after acid adding, control the pH value of pit water 3 ~ 6, preferred pH value scope is 4.5 ~ 5.5, and the water quality within the scope of this pH value is more conducive to follow-up processing.Described acid is hydrochloric acid or nitric acid.
The acid system that adds of the present invention can adopt the disclosed structure of prior art to realize, and described structure should possess and can guarantee to mix after acid adding, guarantee again to add acid system simple to operation, and volume is little, and area occupied is little.Therefore acid adding mode of the present invention is preferably line-blending acid adding, and in order to ensure mixing, lengthen the hybrid reaction time, acid adding is selected and should be taken near equalizing tank supernatant liquor effluent pipe mouth, and has volume pump adjust flux.At ceramic membrane dope mouth, should set a pH value on-line monitoring, the real time data by pH value feeds back to acid adding volume pump, thereby controls pH 3 ~ 6, and preferred pH value scope is 4.5 ~ 5.5.
Ceramic membrane ultrafitration system of the present invention comprises ceramic membrane circulation tank, ceramic membrane recycle pump and the ceramic film component connecting successively.
In technical solution of the present invention, adopt gas reinforced film filtration procedure, by the strengthening effect of biphase gas and liquid flow, controlling diaphragm pollutes on the one hand, high-throughput operation while keeping ceramic membrane filter, obviously improve on the other hand the cycles of concentration of membrane process, improved the solid content of dope.Thereby improved on the whole filtration efficiency.Therefore, the present invention requires to pass into gas in ceramic film component bottom, and the ratio that passes into the flow of gas and the flow of liquid is (0.5 ~ 4): 1, and gaseous tension is 0.3 ~ 0.6MPa.The ratio that preferably passes into the flow of gas and the flow of liquid from ceramic film component bottom is (0.55 ~ 1): 1, and gaseous tension is 0.35 ~ 0.4MPa.
In this step, by adding acid and appropriate gas, can improve the permeation flux of ceramic membrane, by original 175L/m
2h maintains one day, rises to 366L/m
2h maintains a week, has reduced investment and the running cost of ceramic membrane.
In above-mentioned steps, in the time of ventilation, also need regularly recoil and blowdown, to control the face deposition and the membrane channel that constantly form in the process of thickening filtration, stop up.Technique is accordingly, and the recoil cycle is 30-60 min, and the recoil time is 5-10s; Blowing period 30 ~ 60min, blowing time is 3 ~ 5s.
In order to maintain higher permeation flux, reduce again energy consumption simultaneously, the operating procedure of ceramic membrane is: temperature is normal temperature, pressure is 0.1～0.4MPa, crossflow velocity 1～3m/s.
In order to reduce the resistance of membrane process, increase the avidity of mould material and water, to the ceramic super-filtering film regulation of selecting, be: material is aluminum oxide, zirconium white or titanium oxide, and the mean pore size scope of ceramic super-filtering film is 0.02-0.1 μ m.Membrane structure is external-compression type or inner pressed tubulose multi-channel structure, and film thickness is between 1 ~ 10 μ m.
In addition, in technique of the present invention, ceramic membrane dope after ceramic film component ultrafiltration is being concentrated to and is becoming high solids content dope after finite concentration and enter equalizing tank again and carry out settlement separate, high solids content is herein often referred to 3% ~ 6%, being specially those skilled in the art understands and grasps, the present invention is not particularly limited this, and the concentrated solution producing in concentration process can directly enter the ultrafiltration again of ceramic membrane circulation tank.
In technique of the present invention, the angle of polluting from controlling diaphragm is started with, by adding acid for adjusting pH value and passing into gas reinforced film filtration process, reach the filtration efficiency that improves ceramic membrane processing pit water, there is obvious advance, process pit water technique with traditional technology and existing film and compare, there is following superiority:
1, adopt technique scheme, the present invention obtains following beneficial effect: the invention provides the technique that a kind of efficient ceramic membrane is processed pit water, the present invention passes through the filtration of ceramic super-filtering film and concentrates, can not only remove up hill and dale in pit water admittedly containing thing, improved the quality of pit water, the product water water quality of having avoided in traditional technology the change because of mine water quality to cause is unstable, and by taking to pass in acid adding adjust pH and process the technique of gas reinforced film process, greatly improved the permeation flux of film, improved production efficiency, investment and running cost have been reduced.
2, compare with traditional flocculating settling technique: not only technique is simple for the ceramic membrane ultrafitration technique in the present invention, compact equipment, floor space are little, and the pit water with colloidal suspended substance of the particle diameter that can process many unsuitable sedimentations between 4 ~ 7 μ m, the water quality of suitable treatment is extensive.
3, compare with the industry of existing membrane filtration pit water: the permeation flux of processing pit water in ceramic membrane filter technology unit surface of the present invention is large, than the permeation flux of common membrane filtration technique large 1 times, cycles of concentration, also than large nearly 1 times of common membrane filtration technique, has improved the water production rate of unit membrane area.
4, what is more important, because the product water efficiency of technique of the present invention is high, equipment volume is little, and floor space is little, thereby is more suitable for carrying out the processing of pit water in being placed directly in down-hole.A large amount of energy consumptions of floor treatment that pit water is transported to have been saved.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention;
The main element explanation of accompanying drawing:
1-equalizing tank, 2-ceramic membrane circulation tank, 3-ceramic membrane recycle pump, 4-ceramic film component, 5-, 7-control valve, 6-plate-and-frame filter press, 8-ceramic membrane clear liquid tank.A-pit water, b-acid, c-equalizing tank supernatant liquor, d-gas, e-ceramic membrane dope, f-plate-and-frame filter press mud, g-plate-and-frame filter press clear liquid, the concentrated solution of h-high solids content, i-ceramic membrane clear liquid, j-produces water, k-equalizing tank precipitating sludge.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Reference examples
By the pit water in colliery, Shandong, pump into after equalizing tank, through homogeneous, all measure the supernatant liquor after adjusting, directly enter ceramic membrane system, control the crossflow velocity of ceramic membrane at 3m/s, working pressure is 0.3MPa, under normal temperature, filters, and the recoil time is 5s, the recoil cycle is 30min, blowing time is 5s, and blowing period is 30min, and permeation flux only has 175L/m
2and can only maintain one day .h.The cycles of concentration of dope is 45 times.Solid content in dope is 1.3%.
The pit water a in colliery, Shandong is adopted to art breading of the present invention, enter in mine water treatment technique system as shown in Figure 1.At pit water a through homogeneous with after all amount regulates, equalizing tank supernatant liquor c regulates pH=4.5 through line-blending acid adding b, enter ceramic membrane ultrafitration system, specifically through ceramic membrane circulation tank 2, ceramic membrane recycle pump 3, enter ceramic film component 4 and carry out ultrafiltration successively, in ultra-filtration process, from ceramic film component 4 bottoms, pass into gas d and carry out intensive filtration, controlling gas flow and liquid flow rate ratio is 0.55:1, and gaseous tension is 0.35MPa.Can direct reuse or depths reason after ceramic membrane clear liquid i is up to standard.Ceramic membrane dope e becomes high solids content dope h and enters equalizing tank 1 after being concentrated to finite concentration, equalizing tank 1 has settling tank effect concurrently, equalizing tank precipitating sludge k after precipitation enters plate-and-frame filter press 6 and carries out press filtration, after press filtration, gained plate-and-frame filter press mud f can directly discharge, and plate-and-frame filter press clear liquid g can enter equalizing tank 1 circular treatment.
In the present embodiment, control the crossflow velocity of ceramic membrane at 1m/s, working pressure is 0.25MPa, under normal temperature, filters, and the recoil time is 5s, and the recoil cycle is 30min, and blowing time is 5s, and blowing period is 30min.Described Ceramic excessive filtration membrane material is aluminum oxide, and the mean pore size scope of ceramic super-filtering film is 0.1 μ m.Membrane structure is external-compression type tubulose multi-channel structure, and film thickness is 10 μ m.
Technique described in employing the present embodiment, the pH=7.5 of pit water a before processing, the pit water pH=5 after processing, the permeation flux of ceramic membrane has reached 350L/m
2.h, and maintained week age, cycles of concentration is 75 times, and the solid content in dope is 2.8%, and obvious processing effect is better than the existing technique as described in reference examples.
The pit water in colliery, Shandong is adopted to art breading of the present invention, enter in mine water treatment technique system as shown in Figure 1.At pit water through homogeneous with after all amount regulates, equalizing tank supernatant liquor regulates pH=5 through line-blending acid adding, enters ceramic membrane ultrafitration, passes into gas carry out intensive filtration in ultra-filtration process from ceramic film component bottom, controlling gas flow and liquid flow rate ratio is 0.64:1, and gaseous tension is 0.35MPa.Can direct reuse after ceramic membrane clear liquid is up to standard or depths reason, ceramic membrane dope becomes high solids content dope and enters equalizing tank after being concentrated to finite concentration, and equalizing tank has settling tank effect concurrently, and the mud after precipitation enters filter press.After press filtration, gained plate-and-frame filter press mud can directly be discharged, and plate-and-frame filter press clear liquid g can enter equalizing tank circular treatment.(other operate with embodiment 1)
In the present embodiment, control the crossflow velocity of ceramic membrane at 1.5m/s, working pressure is 0.2MPa, under normal temperature, filters, and the recoil time is 6s, and the recoil cycle is 40min, and blowing time is 3s, and blowing period is 40min.Described Ceramic excessive filtration membrane material is aluminum oxide, and the mean pore size scope of ceramic super-filtering film is 0.08 μ m.Membrane structure is external-compression type tubulose multi-channel structure, and film thickness is 8 μ m.
Technique described in employing the present embodiment, the pH=7.5 of pit water before processing, the pit water pH=5.5 after processing, the permeation flux of ceramic membrane has reached 367L/m
2.h, and maintained 6 day time, cycles of concentration is 75 times, and the solid content in dope is 3.5%, and obvious processing effect is better than the existing technique as described in reference examples.
Embodiment 3
The pit water in colliery, Shandong is adopted to art breading of the present invention, enter in mine water treatment technique system as shown in Figure 1.At pit water through homogeneous with after all amount regulates, equalizing tank supernatant liquor regulates pH=5.5 through line-blending acid adding, enters ceramic membrane ultrafitration, passes into gas carry out intensive filtration in ultra-filtration process from ceramic film component bottom, controlling gas flow and liquid flow rate ratio is 1:1, and gaseous tension is 0.4MPa.Ceramic membrane clear liquid reaches. can direct reuse after mark or depths reason, and ceramic membrane dope becomes high solids content dope and enters equalizing tank after being concentrated to finite concentration, and equalizing tank has settling tank effect concurrently, and the mud after precipitation enters filter press.
In the present embodiment, control the crossflow velocity of ceramic membrane at 2m/s, working pressure is 0.15MPa, under normal temperature, filters, and the recoil time is 8s, and the recoil cycle is 50min, and blowing time is 4s, and blowing period is 50min.Described Ceramic excessive filtration membrane material is aluminum oxide, and the mean pore size scope of ceramic super-filtering film is 0.05 μ m.Membrane structure is external-compression type tubulose multi-channel structure, and film thickness is 5 μ m.
Technique described in employing the present embodiment, the pH=7.5 of pit water before processing, the pit water pH=6 after processing, the permeation flux of ceramic membrane has reached 377L/m
2.h, and maintained week age, cycles of concentration is 75 times, and the solid content in dope is 3.3%, and obvious processing effect is better than the existing technique as described in reference examples.
Embodiment 4
The pit water in colliery, Shandong is adopted to art breading of the present invention, enter in mine water treatment technique system as shown in Figure 1.At pit water through homogeneous with after all amount regulates, equalizing tank supernatant liquor regulates pH=5 through line-blending acid adding, enters ceramic membrane ultrafitration, passes into gas carry out intensive filtration in ultra-filtration process from ceramic film component bottom, controlling gas flow and liquid flow rate ratio is 0.7:1, and gaseous tension is 0.35MPa.Can direct reuse after ceramic membrane clear liquid is up to standard or depths reason, ceramic membrane dope becomes high solids content dope and enters equalizing tank after being concentrated to finite concentration, and equalizing tank has settling tank effect concurrently, and the mud after precipitation enters filter press.
In the present embodiment, control the crossflow velocity of ceramic membrane at 3m/s, working pressure is 0.1MPa, under normal temperature, filters, and the recoil time is 10s, and the recoil cycle is 60min, and blowing time is 3s, and blowing period is 60min.Described Ceramic excessive filtration membrane material is aluminum oxide, and the mean pore size scope of ceramic super-filtering film is 0.02 μ m.Membrane structure is external-compression type tubulose multi-channel structure, and film thickness is 5 μ m.
Technique described in employing the present embodiment, the pH=7.5 of pit water before processing, the pit water pH=5.5 after processing, the permeation flux of ceramic membrane has reached 367L/m
2.h, and maintained 6 day time, cycles of concentration is 75 times, and the solid content in dope is 3%, and obvious processing effect is better than the existing technique as described in reference examples.
Claims (10)
1. efficient ceramic membrane is processed a technique for pit water, it is characterized in that: comprising: step 1: by pending pit water through homogeneous and all amount regulate processing; Step 2: step 1 gained supernatant liquor enters the ultrafiltration of ceramic membrane ultrafitration system after acid adding, passes into gas and carries out intensive filtration in ultra-filtration process; Step 3: can direct reuse or depths reason after ceramic membrane clear liquid after ultrafiltration is up to standard; Ceramic membrane dope after ultrafiltration becomes high solids content dope and enters equalizing tank again and carry out settlement separately after being concentrated to finite concentration, and the mud after precipitation is discharged after filter press, and the clear liquid that press filtration mud obtains enters equalizing tank circular treatment.
2. a kind of efficient ceramic membrane according to claim 1 is processed the technique of pit water, it is characterized in that, utilizes equalizing tank all to measure with homogeneous and regulate in step 1, and equalizing tank has the effect of settling tank concurrently, and the mud precipitating enters filter press.
3. a kind of efficient ceramic membrane according to claim 1 and 2 is processed the technique of pit water, it is characterized in that, in step 2 by the supernatant liquor of step 1 through the ultrafiltration of the laggard ceramic membrane ultrafitration system of line-blending acid adding, after acid adding, control the pH value of pit water 3 ~ 6, preferred pH value scope is 4.5 ~ 5.5.
4. a kind of efficient ceramic membrane according to claim 3 is processed the technique of pit water, it is characterized in that, described acid is hydrochloric acid or nitric acid.
5. a kind of efficient ceramic membrane according to claim 1 is processed the technique of pit water, it is characterized in that, described ceramic membrane ultrafitration system comprises ceramic membrane circulation tank, ceramic membrane recycle pump and the ceramic film component connecting successively.
6. a kind of efficient ceramic membrane is processed the technique of pit water according to claim 1 or 5, it is characterized in that, the ratio that passes into the flow of gas and the flow of liquid in step 2 ultra-filtration process from ceramic film component bottom is (0.5 ~ 4): 1, and gaseous tension is 0.3 ~ 0.6MPa; Preferred gas flow is (0.55 ~ 1) with the ratio of liquid flow rate: 1, and preferred gaseous tension is 0.35 ~ 0.4MPa.
7. a kind of efficient ceramic membrane is processed the technique of pit water according to claim 1 or 5, it is characterized in that, described ceramic membrane ultrafitration is that continuous cross-flow filters, and operational condition is: temperature is normal temperature, and pressure is 0.1～0.4MPa, crossflow velocity 1～3m/s.
8. a kind of efficient ceramic membrane is processed the technique of pit water according to claim 1 or 5, it is characterized in that, in ceramic membrane ultrafitration process, with self-timing recoil and blowdown technique, adopt ceramic membrane to produce water and recoil, the recoil cycle is 30 min-60 min, and the recoil time is 5-10s; Blowing period 30 ~ 60min, blowing time is 3 ~ 5s.
9. a kind of efficient ceramic membrane is processed the technique of pit water according to claim 1 or 5, and described ceramic membrane ultrafitration membrane material is aluminum oxide, zirconium white or titanium oxide, and the mean pore size scope of ceramic super-filtering film is 0.02-0.1 μ m; Membrane structure is external-compression type or inner pressed tubulose multi-channel structure, and film thickness is between 1 ~ 10 μ m.
10. ceramic membrane ultrafitration operation according to claim 1 or 5, in described step 3, ceramic membrane dope after ultrafiltration becomes high solids content dope and enters equalizing tank again and carry out settlement separately after being concentrated to finite concentration, and the clear liquid producing in concentration process enters ceramic membrane ultrafitration system.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445677A (en) * | 2014-11-04 | 2015-03-25 | 山西潞安环保能源开发股份有限公司 | Underground movable modular mine water treatment system |
| CN105384269A (en) * | 2015-10-22 | 2016-03-09 | 江苏久吾高科技股份有限公司 | Membrane separation technology for concentrating, separating and washing ore pulp and device thereof |
| CN106865643A (en) * | 2017-02-28 | 2017-06-20 | 中煤（北京）环保工程有限公司 | A kind of ceramic straight filter system for processing waste water of mine of not dosing |
| CN108771904A (en) * | 2018-06-06 | 2018-11-09 | 博立尔化工（扬州）有限公司 | A kind of ultrafiltration press filtration combination solid-liquid separation system |
| CN109179578A (en) * | 2018-09-28 | 2019-01-11 | 三达膜科技（厦门）有限公司 | A kind of processing method of coal mine water and/or coal washing waste water |
| CN109701393A (en) * | 2019-01-01 | 2019-05-03 | 中国人民解放军63653部队 | Underground hydrocolloid original position tangential flow ultra-filtration unit |
| CN114477632A (en) * | 2022-01-25 | 2022-05-13 | 安尔达技术(北京)有限责任公司 | Comprehensive utilization and treatment method for mine wastewater |
| CN115947493A (en) * | 2023-01-10 | 2023-04-11 | 四川环科美能环保科技有限公司 | Fluorine chemical resin dispersion water treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002320828A (en) * | 2001-04-27 | 2002-11-05 | Mitsubishi Kakoki Kaisha Ltd | Filter membrane system solid-liquid separator and waste water treatment equipment with the same |
| US20090101578A1 (en) * | 2007-10-23 | 2009-04-23 | Mcleod Gregg A | Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance |
| CN101544431A (en) * | 2009-05-12 | 2009-09-30 | 王建刚 | Process for treating mine water in high efficiency |
| WO2009152148A1 (en) * | 2008-06-11 | 2009-12-17 | The Regents Of The University Of California | Method and system for high recovery water desalting |
-
2013
- 2013-12-11 CN CN201310674371.3A patent/CN103708581A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002320828A (en) * | 2001-04-27 | 2002-11-05 | Mitsubishi Kakoki Kaisha Ltd | Filter membrane system solid-liquid separator and waste water treatment equipment with the same |
| US20090101578A1 (en) * | 2007-10-23 | 2009-04-23 | Mcleod Gregg A | Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance |
| WO2009152148A1 (en) * | 2008-06-11 | 2009-12-17 | The Regents Of The University Of California | Method and system for high recovery water desalting |
| CN101544431A (en) * | 2009-05-12 | 2009-09-30 | 王建刚 | Process for treating mine water in high efficiency |
Non-Patent Citations (2)
| Title |
|---|
| 刘昌盛等: "陶瓷膜微滤的影响因素及膜污染再生探讨", 《辽宁化工》, vol. 39, no. 1, 31 January 2010 (2010-01-31) * |
| 张向荣等: "气升式陶瓷膜装置过滤钛硅分子筛悬浮液", 《化学工程》, vol. 41, no. 8, 31 August 2013 (2013-08-31) * |
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