CN204958639U - High salt water treatment facilities - Google Patents
High salt water treatment facilities Download PDFInfo
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- CN204958639U CN204958639U CN201520711278.XU CN201520711278U CN204958639U CN 204958639 U CN204958639 U CN 204958639U CN 201520711278 U CN201520711278 U CN 201520711278U CN 204958639 U CN204958639 U CN 204958639U
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Abstract
The utility model relates to a high salt water treatment facilities, high salt water treatment facilities includes from swimming over to pretreatment systems, ultrafiltration system, reverse osmosis system, EDR system and the evaporation crystal system that low reaches feed through in proper order. In this application and since high salt water treatment facilities by pretreatment systems, ultrafiltration system, reverse osmosis system, EDR system and evaporation crystallization system formation complete high salt solution treatment process, can go on thoroughly handling to high salt solution, the upper reaches of ultrafiltration system set up D type filtering pond is to getting into the high salt solution of ultrafiltration system carries out the prefiltering, can slow down by to a great extent ultrafiltration system and reverse osmosis system's load, simultaneously, be in reverse osmosis system's low reaches set up the EDR system, have further improved the rate of recovery of fresh water.
Description
Technical field
The utility model relates to sewage disposal technology, relates more specifically to a kind of haline water treatment unit.
Background technology
Salinity contained by haline water is high, COD is high, hardness is large, TDS (total dissolved solid, the general name being dissolved in inorganic salt in water and organic salt) can 3000mg/L be reached, total hardness can reach 1500mg/L, COD value can reach 3000mg/L, even also containing the high heavy metal to 50ppm.
Especially Coal Chemical Engineering Project, such as Methanol is for the project of alkene, although be provided with peace and quiet lower water treatment device in methanol device and methanol-to-olefins device, but obtain a large amount of strong brines after haline water is processed, prior art cannot process a large amount of strong brines again more thoroughly, in existing haline water treatment facility, even if be provided with evaporation and crystallization system, but because the strong brine water yield after membrane filtration system is larger, crystallization treatment cannot be carried out to so a large amount of strong brines, therefore outer row can only be carried out to wherein relatively large strong brine, quantity discharged even reaches 600m
3/ h, can cause severe contamination to the water body of periphery and add the capacity pressure of sewage.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of haline water treatment unit, to solve the problems of the prior art.
The utility model provides a kind of haline water treatment unit, comprises the pretreatment system, ultrafiltration system, reverse osmosis system, EDR system and the evaporation and crystallization system that are from upstream to downstream and are communicated with successively.
Preferably, described pretreatment system comprise be from upstream to downstream and be communicated with successively coagulation reaction tank, tube settler, neutralization tank and D type filter tank.
Preferably, be provided with inclined tube in described tube settler, the bottom from this pond after water enters this pond flows through described inclined tube from bottom to top, and described inclined tube makes the flocs unit in pending water be precipitated to the bottom of described tube settler.
Preferably, the angle of inclination of described inclined tube is 50 °-70 °.
Preferably, arrange comet fiber filter in described D type filter tank, these filtrate two ends are fibre bundles, and centre is the fixed part of anchoring fiber tow.
Preferably, the filtering membrane arranged in described ultrafiltration system is porousness unsymmetrical structure.
Preferably, described filtering membrane screening aperture is 0.05-0.1 μm.
Preferably, described reverse osmosis system at least comprises two reverse osmosis units of serial connection, and described reverse osmosis units comprises topping-up pump, strainer, high-pressure pump, reverse osmosis membrane apparatus.
Preferably, described EDR system comprises the positive and negative electrode being arranged at two ends, the anion and cation exchange membrane be alternately arranged between described positive and negative electrode, forms the product water channel be alternately arranged and dense aquaporin between adjacent anion and cation exchange membrane.
The haline water treatment unit that the utility model provides, because haline water treatment unit defines complete haline water treatment process by pretreatment system, ultrafiltration system, reverse osmosis system, EDR system and evaporation and crystallization system, more thoroughly can process haline water, haline water is after this device process, only there is a small amount of strong brine from EDR system discharge to described evaporation and crystallization system, this system can carry out evaporative crystallization more thoroughly to strong brine, and then realizes this device to the dense water zero delivery after haline water process; Described D type filter tank is set in the upstream of described ultrafiltration system, pre-filtering is carried out to the haline water entering described ultrafiltration system, can slow down the load of described ultrafiltration system and reverse osmosis system to a great extent, thus the filtering membrane solving described ultrafiltration system and reverse osmosis system holds susceptible to plugging problem; Meanwhile, EDR system is set in the downstream of described reverse osmosis system, desalting treatment is again carried out to the haline water through described reverse osmosis system, make the desalting treatment of haline water more thorough, further increase the rate of recovery of fresh water.
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 the structural representation of haline water treatment unit in the application.
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.
For convenience of explanation, in the application, along sewage flow direction, drainage flow towards side be defined as in " downstream ", the side contrary with drainage flow direction is defined as " upstream ".
Haline water treatment unit in the utility model, comprise pretreatment system 1, ultrafiltration system 2, reverse osmosis system 3, EDR system 4 and evaporation and crystallization system 5, described pretreatment system 1, ultrafiltration system 2, reverse osmosis system 3, EDR system 4 are from upstream to downstream with evaporation and crystallization system 5 and are communicated with successively.
Described pretreatment system 1 carries out base conditioning, for subsequent treatment process is prepared to the haline water from upstream.Described pretreatment system 1 comprise be from upstream to downstream and be communicated with successively coagulation reaction tank 11, tube settler 12, neutralization tank 13 and D type filter tank 14, described coagulation reaction tank 11 is for carrying out sofening treatment to upland water, and in this pond, add medicament carry out flocculation reaction, make the suspended impurity in water be agglomerated into flocs unit; Be provided with inclined tube in described tube settler 12, the angle of inclination of described inclined tube is preferably 50 °-70 °, is more preferably 60 °.Bottom from this pond after water enters this pond flows through described inclined tube from bottom to top, and described inclined tube makes the flocs unit in pending water be precipitated to the bottom of described tube settler 12; Described neutralization tank 13, for eliminating the pH value raised because adding softening medicament, makes pending water remain on neutral value as far as possible; In described D type filter tank 14, comet fiber filter is set, these filtrate two ends are loose fibre bundles, become " comets tail " again, centre is the fixed part of anchoring fiber tow, this fixed part is also called " intelligent core ", and during filtration, filter bed top retains larger particles, filter bed bottom retains fine particle, realizes at a high speed and high-precision filtration.It is high that described D type filter tank has filtering accuracy, retaining power is large, the feature such as the fast and anti-portative power of filtration velocity is strong, can more than 95% be reached to the removal efficiency of particle diameter > 5um in water, to larger molecular organics, virus, bacterium, colloid, the impurity such as iron have certain effect of damming, by arranging this pond in the upstream of described ultrafiltration system 2 and reverse osmosis system 3, can to the impurity in pending water, especially the impurity of larger particles filters, the load of described ultrafiltration system 2 and reverse osmosis system 3 can be slowed down to a great extent, thus the filtering membrane solving described ultrafiltration system 2 and reverse osmosis system 3 holds susceptible to plugging problem.
The filtering membrane arranged in described ultrafiltration system 2 is porousness unsymmetrical structure, and this filtering membrane is mainly used in carrying out filtering separation to the macromolecular substance in water.The use pressure of described filtering membrane is generally 0.1-0.6MPa, and screening aperture is 0.05-0.1 μm, and molecular weight cut-off is 5-100 ten thousand dalton.Described filtering membrane screening aperture is little, almost can retain bacteriums all in solution, thermal source, virus and colloidal particle, protein, larger molecular organics, carry out further fine filtering to the pending water after described D type filter tank 14 is filtered.
Described reverse osmosis system 3 is mainly used in removing the salinity in pending water, it at least comprises two reverse osmosis units, described reverse osmosis units comprises topping-up pump, strainer, high-pressure pump, reverse osmosis membrane apparatus, and described topping-up pump, for improving the pressure of water, makes water form the condition of reverse osmosis; Described strainer is used for filtering water, is provided with reverse osmosis membrane, for being separated the salt in water in described reverse osmosis unit.Preferably, the number of described reverse osmosis units is 2, comprise the first reverse osmosis units 31 and the second reverse osmosis units 32, described first reverse osmosis units 31 is arranged at the upstream side of the second reverse osmosis units 32, the ratio of desalinization of wherein said first reverse osmosis units 31 is greater than 70%, and the ratio of desalinization of described second reverse osmosis units 32 is greater than 50%.
Described EDR system 4 comprises the positive and negative electrode being arranged at two ends, the anion and cation exchange membrane be alternately arranged between described positive and negative electrode, be alternately arranged product water channel and dense aquaporin is formed between adjacent anion and cation exchange membrane, after pending water enters described EDR system, salt ion, such as Nacl enters dense aquaporin and discharges, and fresh water composition is discharged by described product water channel, thus completes again removing the salt of pending water.
Haline water treatment unit in the utility model is also provided with product pond 6, and described product pond 6 is communicated with EDR system 4 with described reverse osmosis system 3 respectively, and described product pond is used for the fresh water from described reverse osmosis system 3 and EDR system 4 to store.
Described evaporation and crystallization system 5 for the dense water from upstream being carried out evaporative crystallization process, the crystallisate obtained, thus completes the final process to treatment sewage.
During waste disposal plant application in the application, will by following art breading flow process:
Step one, add in lime, soda ash, caustic soda, this several medicament of tertiary sodium phosphate in described coagulation reaction tank 11 one or several, and the heavy metal ion such as calcium and magnesium in the medicament that adds and upper pending water is reacted, the also Precipitation such as the oxyhydroxide of generation low-solubility or carbonate, thus reach the effect of demineralized water;
Step 2, pending water in last step enters described tube settler 12, flow through described inclined tube at pending water from bottom to top from the bottom of described tube settler 12, described inclined tube makes the flocs unit in water be precipitated to the bottom of described tube settler 12, thus removes pending impurities in water;
Step 3, pending water in last step enters described neutralization tank 13, owing to the addition of basic agent in step one, water is softened, now the pH value of pending water is in alkalescence, in this step according to the pH value of the pending water recorded, in described neutralization tank 13, add a certain amount of acidic substance, such as hydrochloric acid, pending water is neutralized, makes the pH value of pending water as far as possible in neutral;
Step 4, pending water in last step enters described ultrafiltration system 2, carry out further fine filtering, because the filtering membrane screening aperture arranged in described ultrafiltration system 2 is little, this step retains most bacterium in solution, thermal source, virus and colloidal particle, protein, larger molecular organics etc.;
Step 5, the pending water after last step enters described reverse osmosis system 3, and haline water concentrates by described reverse osmosis system, while producing fresh water, produce dense water, described fresh water enters product pond 6, reclaim fresh water, described dense water enters next step;
Step 6, the dense water produced in last step enters described EDR system 4, and haline water concentrates by described EDR system 4 further, and obtain fresh water and dense water respectively, the fresh water obtained enters product pond 6, and the dense water obtained enters next step and continues process;
Step 7, the dense water produced in last step enters described evaporation and crystallization system 5, and this system is evaporated dense water, is separated out by salt-pepper noise, obtains crystallisate.
After above-mentioned art breading flow process, just complete the desalination process to haline water, and the fresh water that water obtains enters water circulation system again, achieve and the process of trade effluent is recycled.
In the application, because haline water treatment unit defines complete haline water treatment process by pretreatment system 1, ultrafiltration system 2, reverse osmosis system 3, EDR system 4 and evaporation and crystallization system 5, more thoroughly can process haline water, haline water is after this device process, a small amount of strong brine is only had to be discharged into described evaporation and crystallization system 5 from EDR system 4, this system can carry out evaporative crystallization more thoroughly to strong brine, and then realizes this device to the dense water zero delivery after haline water process; In the upstream of described ultrafiltration system 2, described D type filter tank 14 is set, pre-filtering is carried out to the haline water entering described ultrafiltration system 2, can slow down the load of described ultrafiltration system 2 and reverse osmosis system 3 to a great extent, thus the filtering membrane solving described ultrafiltration system 2 and reverse osmosis system 3 holds susceptible to plugging problem; Meanwhile, EDR system is set in the downstream of described reverse osmosis system 3, desalting treatment is again carried out to the haline water through described reverse osmosis system 3, make the desalting treatment of haline water more thorough, further increase the rate of recovery of fresh water.
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.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
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 (9)
1. a haline water treatment unit, comprises the pretreatment system (1), ultrafiltration system (2), reverse osmosis system (3), EDR system (4) and the evaporation and crystallization system (5) that are from upstream to downstream and are communicated with successively.
2. haline water treatment unit according to claim 1, it is characterized in that, described pretreatment system (1) comprise be from upstream to downstream and be communicated with successively coagulation reaction tank (11), tube settler (12), neutralization tank (13) and D type filter tank (14).
3. haline water treatment unit according to claim 2, it is characterized in that, described tube settler is provided with inclined tube in (12), bottom from this pond after water enters this pond flows through described inclined tube from bottom to top, and described inclined tube makes the flocs unit in pending water be precipitated to the bottom of described tube settler (12).
4. haline water treatment unit according to claim 3, is characterized in that, the angle of inclination of described inclined tube is 50 °-70 °.
5. haline water treatment unit according to claim 2, is characterized in that, arrange comet fiber filter in described D type filter tank (14), these filtrate two ends are fibre bundles, and centre is the fixed part of anchoring fiber tow.
6. haline water treatment unit according to claim 1, is characterized in that, the filtering membrane arranged in described ultrafiltration system (2) is porousness unsymmetrical structure.
7. haline water treatment unit according to claim 6, is characterized in that, described filtering membrane screening aperture is 0.05-0.1 μm.
8. haline water treatment unit according to claim 1, is characterized in that, described reverse osmosis system (3) at least comprises two reverse osmosis units of serial connection, and described reverse osmosis units comprises topping-up pump, strainer, high-pressure pump, reverse osmosis membrane apparatus.
9. haline water treatment unit according to claim 1, it is characterized in that, described EDR system (4) comprises the positive and negative electrode being arranged at two ends, the anion and cation exchange membrane be alternately arranged between described positive and negative electrode, forms the product water channel be alternately arranged and dense aquaporin between adjacent anion and cation exchange membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711278.XU CN204958639U (en) | 2015-09-14 | 2015-09-14 | High salt water treatment facilities |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520711278.XU CN204958639U (en) | 2015-09-14 | 2015-09-14 | High salt water treatment facilities |
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| CN204958639U true CN204958639U (en) | 2016-01-13 |
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| CN201520711278.XU Active CN204958639U (en) | 2015-09-14 | 2015-09-14 | High salt water treatment facilities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152440A (en) * | 2015-09-14 | 2015-12-16 | 北京万邦达环保技术股份有限公司 | High-salinity water treatment device and high-salinity water treatment process applying same |
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2015
- 2015-09-14 CN CN201520711278.XU patent/CN204958639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152440A (en) * | 2015-09-14 | 2015-12-16 | 北京万邦达环保技术股份有限公司 | High-salinity water treatment device and high-salinity water treatment process applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningxia wanbangda Water Company Limited Assignor: Beijing Wanbangda Environmental Protection Technology Co., Ltd. Contract record no.: 2016990000028 Denomination of utility model: High-salinity water treatment device and high-salinity water treatment process applying same Granted publication date: 20160113 License type: Exclusive License Record date: 20160127 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |