CN102180551A - System and method for treating emulsion wastewater - Google Patents
System and method for treating emulsion wastewater Download PDFInfo
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- CN102180551A CN102180551A CN 201110053984 CN201110053984A CN102180551A CN 102180551 A CN102180551 A CN 102180551A CN 201110053984 CN201110053984 CN 201110053984 CN 201110053984 A CN201110053984 A CN 201110053984A CN 102180551 A CN102180551 A CN 102180551A
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- wastewater
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- 239000000839 emulsion Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002351 wastewater Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 46
- 238000004140 cleaning Methods 0.000 claims abstract description 45
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 30
- 239000002253 acid Substances 0.000 claims description 17
- 239000010802 sludge Substances 0.000 claims description 17
- 239000003513 alkali Substances 0.000 claims description 15
- 230000001804 emulsifying effect Effects 0.000 claims description 12
- 239000010808 liquid waste Substances 0.000 claims description 12
- 239000006228 supernatant Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- UUZZMWZGAZGXSF-UHFFFAOYSA-N peroxynitric acid Chemical compound OON(=O)=O UUZZMWZGAZGXSF-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The invention discloses a system and a method for treating emulsion wastewater. The device mainly comprises an adjusting pool, a lifting pump, a paper tape filtering machine, a circulating water tank, a feeding pump, an ultrafiltration circulating pump, an ultrafiltration system and a water storage tank which are communicated front and back in turn, wherein a chemical cleaning system is communicated with the ultrafiltration system through the feeding pump and the ultrafiltration circulating pump and is communicated with a nitric acid storage tank through a nitric acid adding pump; a concentrated emulsion decomposing tank is communicated with the ultrafiltration system; the adjusting pool and the concentrated emulsion decomposing tank are communicated with a dirty oil tank; and the concentrated emulsion decomposing tank and the ultrafiltration system are communicated with the adjusting pool respectively. The method comprises the following steps of: adding the wastewater into the adjusting pool through a pipeline, making the wastewater pass through the paper tape filtering machine, the wastewater circulating tank and an ultrafiltration membrane system, making one part of wastewater pass through a membrane to obtain purified penetrating fluid, making most of wastewater flow back, and making the other part of wastewater flow back to a circulating pool. The penetration flux of the ultrafiltration membrane can be effectively recovered, and the service life of the ultrafiltration membrane can reach 5 years commonly. By the system and the method for treating the wastewater, investment cost and treatment cost are low, and effluent can reach the emission standard.
Description
Technical field
The present invention relates to a kind of treatment system and treatment process of oily(waste)water.
Background technology
In the production process of oil production, refining of petroleum, petrochemical complex, storage and shipping of oil products, oil tanker accident, steamer shipping, vehicle cleaning, machinofacture, food-processing etc., all can produce a large amount of oily(waste)waters.At present, the treatment process of oily(waste)water is had: air supporting method, absorption method, biochemical process, chemical method etc., these treatment unit and treatment process, or processing cost is too high, or treatment effect is not ideal enough.
Summary of the invention
Purpose of the present invention is to overcome the deficiency of prior art, provide a kind of easy and simple to handle, investment cost is few, can guarantee the novel treatment device and the treatment process of water outlet emission compliance.
Basic structure of the present invention and principle are: whole system adopts the mode of internal recycle ultrafiltration: join a charging pump and a recycle pump, charging pump is used for drawing pending emulsifying liquid waste water when work from cyclic water tank, gets liquid and clean from corresponding pickling, alkali cleaning, rinse tank; Crossflow velocity and pressure when recycle pump is used for guaranteeing the ultrafiltration apparatus operation.
The present invention realizes by following concrete technical scheme:
This emulsifying liquid waste water treatment unit has equalizing tank A, lift pump B, paper tape filter C, cyclic water tank D, charging pump E, ultrafiltration recycle pump F, ultrafiltration system G, water tank K, and each part mentioned above front and back successively is communicated with; Chemical cleaning system I communicates with ultrafiltration system G and adds pump 15 by nitric acid by charging pump E, ultrafiltration recycle pump F and communicates with nitric acid storage tank 14; Dense emulsion decomposes case H and communicates with ultrafiltration system G; Equalizing tank A, dense emulsion decompose case H and communicate with sump oil case 8; Dense emulsion decomposes case H, ultrafiltration system G and communicates with equalizing tank B respectively;
Said equalizing tank A, Oil and slag scraping machine is equipped with at the top, and the bottom is provided with sludge bucket;
Said paper tape filter C, the bottom side is provided with the paper groove;
Said cyclic water tank D, the top is provided with Oil scraper, and the bottom is provided with warming apparatus;
Said ultrafiltration system F is provided with inorganic ceramic film;
Said chemical cleaning system I is connected into an integral body by acid cleaning tank, alkali cleaning case, rinse tank.
Said equalizing tank A, cyclic water tank D, alkali cleaning case, acid cleaning tank, rinse tank and dense emulsion decompose case H, are equipped with the steam warming apparatus.
Its technical process is:
1) emulsifying liquid waste water enters equalizing tank A by pipeline, and through homogeneous, all measure, regulate, the Oil and slag scraping machine 1 on the equalizing tank scrapes sediment at the bottom of the pond in the dirty hole bucket 3; Oil slick is delivered to sump oil case 8, and sediment is delivered to sludge thickener 5 by sludge pump 4, and mud is compressed into dried mud outward transport 7 through sludge press filtration machine 6; The sludge sump supernatant liquor then returns equalizing tank A.
2) equalizing tank A water outlet is promoted to paper tape filter C by lift pump B, filters out oil slick, big impurity and iron powder, and scum silica frost (being oil slick, impurity and iron powder) drops on the paper of paper tape filter.Paper tape need regularly replace into paper groove 2, and water outlet then enters waste water cyclic water tank D; The filtering accuracy of paper tape filter C is 5-30 μ m.
3) waste water among the cyclic water tank D is delivered to recycle pump F inlet through charging pump E, and through ultrafiltration recycle pump pressurization input ultrafiltration system G, wherein: 0.8～1.2% by the ultrafiltration ultra-filtration membrane, becomes to purify penetrating fluid (J), directly enters in the water tank (K); 85～93% reflux, with the rate of recovery of the ultrafiltration system that improves internal circulation system; All the other are back to cyclic water tank (D).
4) liquid level in cyclic water tank D reach a certain height, concentrated solution in the cyclic water tank is disposed to dense emulsion and decomposes case H, add pump 15 by nitric acid and be acidified with acid, profit is further separated: oil slick enters sump oil case 8, and supernatant liquor then returns equalizing tank B and handles again.
5) dirt of cyclic water tank D, alkali cleaning case, acid cleaning tank, rinse tank enters the blowdown hole through evacuated tube, and the supernatant liquor gravity flow enters equalizing tank A and handles together, and realizes zero release.
6) cleaning relief liquor 13 and cleaning penetrating fluid 12 return acid cleaning tank, alkali cleaning case, rinse tank by pipeline, and dirt is gone into blowdown hole 16, and supernatant liquor returns equalizing tank A and handles again.
According to the treatment system of claim 3 and the described emulsion of claim 2, it is characterized in that 4, the Heating temperature of said heating unit is 70-80 ℃.
5, according to the treatment process of the described emulsifying liquid waste water of claim 3, it is characterized in that aforementioned 2) the filtering accuracy of paper tape filter C be 5-30 μ m.
Description of drawings
The organigram of Fig. 1, the present invention's emulsifying liquid waste water treatment unit
Fig. 2, the present invention's emulsion waste water treatment process schematic flow sheet
A, equalizing tank; B, lift pump; C, paper tape filter; D, cyclic water tank; E, charging pump; F, ultrafiltration recycle pump; G, ultrafiltration system; H, dense emulsion decompose case; I, chemical cleaning system; J, purification penetrating fluid; K, water tank; 1, Oil and slag scraping machine; 2, paper groove; 3, sludge bucket; 4, submersible sewage pump; 5, sludge thickener; 6, sludge press filtration machine; 7, dried mud outward transport; 8, sump oil case; 9, acid cleaning tank; 10, alkali cleaning case; 11, rinse tank; 12, clean penetrating fluid; 13, clean relief liquor; 14, nitric acid tank; 15, nitric acid adds pump; 16, blowdown hole;
Embodiment
Below in conjunction with embodiment that oil field extracted water is handled of accompanying drawing narration, structure of the present invention and method are described further.
Fig. 1 shows the structure of the emulsifying liquid waste water treatment system of the embodiment of the invention
Mainly be made up of equalizing tank A, lift pump B, paper tape filter C, cyclic water tank D, charging pump E, ultrafiltration recycle pump F, ultrafiltration system G, purification penetrating fluid J, water tank K, each part mentioned above front and back successively is communicated with.Chemical cleaning system I communicates with ultrafiltration system G and adds pump 15 by nitric acid by ultrafiltration recycle pump F and communicates with nitric acid storage tank 14; Cyclic water tank D decomposes case H with dense emulsion and communicates; Equalizing tank A, dense emulsion decompose case H and communicate with sewage jar 8; Dense emulsion decomposes case H, ultrafiltration system G and communicates with equalizing tank B respectively.
Oil and slag scraping machine 1 is equipped with at the top of equalizing tank A, and the bottom is provided with sludge bucket 3; Paper tape filter C, the bottom is provided with paper groove 2; Cyclic water tank D, its top is provided with Oil scraper 1; Ultrafiltration system G adopts inorganic ceramic film; Chemical cleaning system H is formed a whole by acid cleaning tank 9, alkali cleaning case 10, rinse tank 11;
The above-mentioned equalizing tank of this system, cyclic water tank, alkali cleaning case, acid cleaning tank, rinse tank and emulsion decompose case and are equipped with vapor heating equipment, are convenient to oil, water thorough mixing, prevent dirty stifled film.
In this system, also be provided with sump oil case 16 and water tank K.
Fig. 2 shows the treatment process of the embodiment of the invention
Emulsifying liquid waste water enters equalizing tank A by pipeline, is provided with Oil and slag scraping machine 1 in equalizing tank, and sediment at the bottom of the pond is scraped in the dirty hole bucket 3; Oil slick is delivered to sump oil case 8, and sediment is delivered to sludge thickener 5 by sludge pump 4, and mud is compressed into dried mud outward transport 7 through sludge press filtration machine 6.Equalizing tank A water outlet is promoted to paper tape filter C by lift pump B, filters out oil slick, big impurity and iron powder, and scum silica frost is gone into paper groove 2, and water outlet then enters waste water cyclic water tank D.Waste water in the cyclic water tank is delivered to ultrafiltration recycle pump F inlet through charging pump E, enters ultrafiltration system G through ultrafiltration recycle pump positive delivery, and ultra-filtration membrane adopts inorganic ceramic film.Waste water is under high pressure drives, with certain speed cross-flow passes in the inorganic ceramic film pipe, suspended substance in the water, particulate, high-concentration emulsified oil, larger molecular organics etc. are prevented from greater than the solute of membrane pore size, and solvent and see through film less than the solute of membrane pore size, circulation flows among the cyclic water tank D then, has reached separation, has concentrated and the purpose of purifying, be that a part is passed through film, become purification penetrating fluid J, major part refluxes, and some is back to circulatory pool.Purifying penetrating fluid directly enters among the water tank K.Liquid level in cyclic water tank reach a certain height, and the concentrated solution in the cyclic water tank is disposed to dense emulsion and decomposes case 15, and the energy peroxy-nitric acid adds pump 15 and is acidified with acid, and profit is further separated, and oil slick enters sump oil case 8, and supernatant liquor then returns equalizing tank and handles again.
The filtering accuracy of paper tape filter C is 20 μ m.
Equalizing tank, cyclic water tank, alkali cleaning case, acid cleaning tank, rinse tank and emulsion decompose case and are equipped with vapor heating equipment, and Heating temperature is 75 ℃.
Cleaning system H is made up of acid cleaning tank 9, alkali cleaning case 10, rinse tank 11, and the permeation flux of efficient recovery ultra-filtration membrane can be arranged, and generally can reach 5 years work-ing life.
The cleaning relief liquor 13 of present embodiment and cleaning penetrating fluid 12 return acid cleaning tank, alkali cleaning case, rinse tank by pipeline, realize recycle, and dirt is then gone into blowdown hole 16, and supernatant liquor returns equalizing tank and handles again.
Following table is every technical indicator that present embodiment reaches:
Claims (5)
1. the treatment system of an emulsifying liquid waste water, it is characterized in that, comprise: equalizing tank (A), lift pump (B), paper tape filter (C), cyclic water tank (D), charging pump (E), ultrafiltration recycle pump (F), ultrafiltration system (G), water tank (K), each part mentioned above front and back successively are communicated with; Chemical cleaning system (I) communicates with ultrafiltration system (G) and adds pump (15) by nitric acid by charging pump (E), ultrafiltration recycle pump (F) and communicates with nitric acid storage tank (14); Dense emulsion decomposes case (H) and communicates with ultrafiltration system (G); Equalizing tank (A), dense emulsion decompose case (H) and communicate with sump oil case (8); Dense emulsion decomposes case (H), ultrafiltration system (G) communicates with equalizing tank (B) respectively;
Said equalizing tank (A), Oil and slag scraping machine is equipped with at the top, and the bottom is provided with sludge bucket;
Said paper tape filter (C), the bottom side is provided with the paper groove;
Said cyclic water tank (D), the top is provided with Oil scraper, and the bottom is provided with warming apparatus;
Said ultrafiltration system (F) is provided with inorganic ceramic film;
Said chemical cleaning system (I) is connected into an integral body by acid cleaning tank, alkali cleaning case, rinse tank.
2. according to the treatment unit of the described emulsion of claim 1, it is characterized in that: equalizing tank (A), cyclic water tank (D), alkali cleaning case, acid cleaning tank, rinse tank and dense emulsion decompose case (H), are equipped with the steam warming apparatus.
3. the treatment process of an emulsifying liquid waste water is characterized in that, carries out according to following step:
1) emulsifying liquid waste water enters equalizing tank (A) by pipeline, through homogeneous, all measure, regulate, the Oil and slag scraping machine on the equalizing tank
(1) sediment at the bottom of the pond is scraped in the dirty hole bucket (3); Oil slick is delivered to sump oil case (8), and sediment is delivered to sludge thickener (5) by sludge pump (4), and mud is compressed into dried mud outward transport (7) through sludge press filtration machine (6); The sludge sump supernatant liquor then returns equalizing tank (A);
2) equalizing tank (A) water outlet, be promoted to paper tape filter (C) by lift pump (B), filter out oil slick, big impurity and iron powder, these oil slick, big impurity and iron powder scum silica frost, fallen into paper groove (2) by the paper of paper tape filter after overanxious, water outlet then enters waste water cyclic water tank (D);
3) waste water in the cyclic water tank (D), deliver to recycle pump (F) inlet through charging pump (E), be mixed into ultrafiltration membrane system (G) with big phegma, wherein: 0.8～1.2% by the ultrafiltration ultra-filtration membrane, become purification penetrating fluid (J), directly enter in the water tank (K); 85～93% reflux, and all the other are back to cyclic water tank (D).
4) liquid level in cyclic water tank (D) reach a certain height, concentrated solution in the cyclic water tank is disposed to dense emulsion and decomposes case (H), adds pump (15) by nitric acid and is acidified with acid, and profit is further separated, oil slick enters sump oil case (8), and supernatant liquor then returns equalizing tank (B) and handles again;
5) dirt of cyclic water tank (D), alkali cleaning case, acid cleaning tank, rinse tank enters the blowdown hole through evacuated tube, and the supernatant liquor gravity flow enters equalizing tank (A) and handles together;
6) cleaning relief liquor (13) and cleaning penetrating fluid (12) return acid cleaning tank, alkali cleaning case, rinse tank by pipeline, and dirt is gone into blowdown hole (16), and supernatant liquor returns equalizing tank (A) and handles again.
4. according to the treatment system and the method for claim 3 and the described emulsion of claim 2, it is characterized in that the Heating temperature of said heating unit is 70-80 ℃.
5. according to the treatment process of the described emulsifying liquid waste water of claim 3, it is characterized in that aforementioned 2) the filtering accuracy of paper tape filter (C) be 5-30 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110053984 CN102180551A (en) | 2011-03-07 | 2011-03-07 | System and method for treating emulsion wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110053984 CN102180551A (en) | 2011-03-07 | 2011-03-07 | System and method for treating emulsion wastewater |
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| CN102180551A true CN102180551A (en) | 2011-09-14 |
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|---|---|---|---|
| CN 201110053984 Pending CN102180551A (en) | 2011-03-07 | 2011-03-07 | System and method for treating emulsion wastewater |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674630A (en) * | 2012-05-09 | 2012-09-19 | 山西太钢不锈钢股份有限公司 | Steel rolling wastewater treatment method |
| CN104193019A (en) * | 2014-08-05 | 2014-12-10 | 无锡践行环保技术有限公司 | Emulsion wastewater treatment process and device |
| CN104193088A (en) * | 2014-08-05 | 2014-12-10 | 无锡践行中欧科技有限公司 | Emulsion wastewater treatment process and device |
| CN104973659A (en) * | 2015-06-24 | 2015-10-14 | 煤科集团杭州环保研究院有限公司 | Emulsified oil membrane concentration system |
| CN106630361A (en) * | 2017-03-09 | 2017-05-10 | 苏州天瑞环境科技有限公司 | Emulsion treatment system, device and method as well as mobile emulsion treatment platform |
| CN110240319A (en) * | 2019-06-20 | 2019-09-17 | 一汽-大众汽车有限公司 | Waste water pretreatment system and method in a kind of automobile manufacturing process |
| CN114669083A (en) * | 2022-03-12 | 2022-06-28 | 信丰华锐钨钼新材料有限公司 | Method for separating tungsten and molybdenum organic phases through N1923 alkalescent extraction |
| CN116874116A (en) * | 2023-07-20 | 2023-10-13 | 阳江宏旺实业有限公司 | Cold rolling emulsion recycling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1736906A (en) * | 2005-07-12 | 2006-02-22 | 武汉华麟科技有限公司 | Waste water treatment method and system of cold rolling emulsion |
| CN201962156U (en) * | 2011-03-07 | 2011-09-07 | 西安皓海嘉水处理科技有限责任公司 | Processing system of emulsion waste water |
-
2011
- 2011-03-07 CN CN 201110053984 patent/CN102180551A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736906A (en) * | 2005-07-12 | 2006-02-22 | 武汉华麟科技有限公司 | Waste water treatment method and system of cold rolling emulsion |
| CN201962156U (en) * | 2011-03-07 | 2011-09-07 | 西安皓海嘉水处理科技有限责任公司 | Processing system of emulsion waste water |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674630A (en) * | 2012-05-09 | 2012-09-19 | 山西太钢不锈钢股份有限公司 | Steel rolling wastewater treatment method |
| CN102674630B (en) * | 2012-05-09 | 2013-08-28 | 山西太钢不锈钢股份有限公司 | Steel rolling wastewater treatment method |
| CN104193019A (en) * | 2014-08-05 | 2014-12-10 | 无锡践行环保技术有限公司 | Emulsion wastewater treatment process and device |
| CN104193088A (en) * | 2014-08-05 | 2014-12-10 | 无锡践行中欧科技有限公司 | Emulsion wastewater treatment process and device |
| CN104973659A (en) * | 2015-06-24 | 2015-10-14 | 煤科集团杭州环保研究院有限公司 | Emulsified oil membrane concentration system |
| CN106630361A (en) * | 2017-03-09 | 2017-05-10 | 苏州天瑞环境科技有限公司 | Emulsion treatment system, device and method as well as mobile emulsion treatment platform |
| CN110240319A (en) * | 2019-06-20 | 2019-09-17 | 一汽-大众汽车有限公司 | Waste water pretreatment system and method in a kind of automobile manufacturing process |
| CN114669083A (en) * | 2022-03-12 | 2022-06-28 | 信丰华锐钨钼新材料有限公司 | Method for separating tungsten and molybdenum organic phases through N1923 alkalescent extraction |
| CN114669083B (en) * | 2022-03-12 | 2024-01-02 | 信丰华锐钨钼新材料有限公司 | Method for separating tungsten and molybdenum organic phases by using N1923 weak alkaline extraction |
| CN116874116A (en) * | 2023-07-20 | 2023-10-13 | 阳江宏旺实业有限公司 | Cold rolling emulsion recycling method |
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Application publication date: 20110914 |