CN103073119B - A kind of emulsifying wastewater treatment process and device - Google Patents
A kind of emulsifying wastewater treatment process and device Download PDFInfo
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- CN103073119B CN103073119B CN201210340366.4A CN201210340366A CN103073119B CN 103073119 B CN103073119 B CN 103073119B CN 201210340366 A CN201210340366 A CN 201210340366A CN 103073119 B CN103073119 B CN 103073119B
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- pipe
- air supporting
- emulsifying
- emulsion
- waste water
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000001804 emulsifying effect Effects 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 28
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 28
- 238000005189 flocculation Methods 0.000 claims abstract description 19
- 239000002351 wastewater Substances 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 230000016615 flocculation Effects 0.000 claims abstract description 17
- 230000015556 catabolic process Effects 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000002203 pretreatment Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000006004 Quartz sand Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000706 filtrate Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000010903 husk Substances 0.000 claims abstract description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 4
- 235000009566 rice Nutrition 0.000 claims abstract description 4
- 240000007594 Oryza sativa Species 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000000126 substance Substances 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000010808 liquid waste Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 238000005498 polishing Methods 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to field of waste water treatment, particularly relate to treatment unit and the method for the emulsifying wastewater that the operations such as a kind of cutting be applicable in mechanical processing process, polishing produce.The treatment process that the present invention sets forth mainly adopts the method for composite demulsification, makes it breakdown of emulsion complete, then carries out air supporting, flocculation, filter, wherein filtrate with the addition of rice husk and the sub-filtration medium of sawdust on traditional quartz sand activated carbon basis, can increase filtration and deoiling effect, make effluent quality excellent; Can all technique such as complete independently pre-treatment, breakdown of emulsion, air supporting, flocculation according to the integrated treatment unit of aforesaid method Aided design, have economical and energy saving, multiple functional, take up an area little, easy to operate advantage.
Description
Technical field
The present invention relates to field of waste water treatment, particularly relate to treatment process and the device of the emulsifying wastewater that the operations such as a kind of cutting be applicable in mechanical processing process, polishing produce.
Background technology
Emulsion in trade effluent is more unmanageable a kind of water pollution source, mainly by Mechanical Processing Industry field, as the manufacturing procedure process discharge such as cutting, grinding produce.Oily substance in this waste water emulsion floats on waterborne, forms oil film, stops the oxygen in air soluble in water, causes hydrobiont dead because of anoxic, causes water body to degenerate, contaminate environment.
At present, the method for emulsifying wastewater being carried out to breakdown of emulsion process has the methods such as heating, ionization, chemistry, physics, wherein with chemistry or ionization being most widely used of breaking method.But chemical demulsifying process needs to adopt different emulsion splitters, and input amount is comparatively large, and cost is higher, ionization breaking method can only be used for water-in-oil type emulsion waste water, not good to the treatment effect of other types emulsifying wastewater, need matching used treatment facility various, complicated operation simultaneously.
Summary of the invention
In view of the defect that prior art exists, the object of the invention is the emulsifying liquid waste water integrated apparatus that a kind of emulsifying wastewater treatment process will be provided and use for present method specialized designs, demulsification of the present invention is excellent, oily water separation efficiency is high, integrated apparatus can process multiple technological processs such as breakdown of emulsion, air supporting, flocculation, effective solution treatment facility is various, the problem of complicated operation.
For achieving the above object, the technology used in the present invention solution:
A kind of emulsifying wastewater treatment unit, comprise tank body, water inlet pipe, chemical feed pipe, air supporting pipe, aqueous vapor compressor, upflow tube, vent-pipe, water outlet, annular spray pipe and nozzle, it is characterized in that: tank body top arranges annular spray pipe, annular spray pipe is arranged some nozzles; Water inlet pipe is connected with sump pump, and chemical feed pipe is connected with dosing pump, and air supporting pipe is connected with aqueous vapor compressor, and vent-pipe is connected with roots blower, and upflow tube is connected with collection device, and water outlet is connected with filtration unit.
Described tank body lower part is cone, and material is stainless steel plate.
Described water inlet pipe, chemical feed pipe, air supporting pipe, vent-pipe, upflow tube, annular spray pipe are equipped with valve.
A kind of emulsifying wastewater treatment process, comprises pre-treatment, composite demulsification, air supporting, flocculation, filtration five steps.
Its concrete technology method is as follows:
1. pre-treatment: what mechanical processing process produced passes through precipitation containing emulsifying liquid waste water, and the solid matter that density is large sinks to lower floor, waste liquid, by after pressure filter, regulates pH to be after neutrality, pumps into emulsifying liquid waste water integrated treatment unit;
2. composite demulsification: first carry out ion breakdown of emulsion, ion emulsion splitter is one or several in calcium chloride, Tai-Ace S 150, aluminum chloride, magnesium chloride, and sharp draft stirs 0.5-2h; Then carry out oxidation to harness emulsion, oxidation to harness emulsion agent is the one in ozone, clorox, potassium permanganate, and sharp draft stirs 0.5-2h;
3. air supporting: utilize and be arranged in the air supporting pipe of emulsifying liquid waste water integrated treatment unit bottom and aqueous vapor compressor and pass into compressed gas water mixture to the waste water after breakdown of emulsion stirs, air supporting volume pressure is 0.2-0.5MPa, air water volume ratio is 1:10-1:20, until stop air supporting after profit layering;
4. flocculate: after the oily substance on liquid level upper strata in emulsifying liquid waste water integrated treatment unit is overflowed, adjustment wastewater pH is 8-10, flocculation agent is added by the chemical feed pipe of medicine system and dosing pump, flocculation agent adopt in PAFC, PAC, PAM one or several, ventilate in flocculation process and stir 1-3h, stop after a large amount of alumen ustum to be generated ventilating, open air supporting, the alumen ustum being floated to liquid level upper strata is discharged by upflow tube;
5. filter: the waste water after process is pumped into filtration unit; filter packing is multistage filtrate; be followed successively by quartz sand-rice husk and the sub-mixture-activated carbon-quartz sand of sawdust from top to bottom; upper strata quartz sand plays the filtrate effect of protection lower floor; the sub-mixture of rice husk sawdust can filtering flocculent substance; the activated carbon degree of depth is adsorbed, and lower floor's quartz sand plays and supports upper strata filtrate effect.
After adopting such scheme, the present invention has following beneficial effect compared with existing side's technology:
The treatment process that the present invention sets forth mainly adopts the method for composite demulsification, makes it breakdown of emulsion complete, then carries out air supporting, flocculation, filter, wherein filtrate with the addition of rice husk and the sub-filtration medium of sawdust on traditional quartz sand activated carbon basis, can increase filtration and deoiling effect, make effluent quality excellent; Can all technique such as complete independently pre-treatment, breakdown of emulsion, air supporting, flocculation according to the integrated treatment unit of aforesaid method Aided design, have economical and energy saving, multiple functional, take up an area little, easy to operate advantage.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is a kind of structural representation sketch of emulsifying wastewater treatment unit.
In figure: 1, tank body, 2, water inlet pipe, 3, sump pump, 4, chemical feed pipe, 5, dosing pump, 6, air supporting pipe, 7, aqueous vapor compressor, 8, vent-pipe, 9, roots blower, 10, water outlet, 11, filtration unit, 12, upflow tube, 13, collection device, 14, annular spray pipe, 15, nozzle, 16, valve.
Embodiment
Below in conjunction with accompanying drawing and embodiment, technical solution of the present invention is described:
As Fig. 1, shown in shown in Fig. 2, emulsifying wastewater is collected by water collecting basin, first waste water is adjusted to neutrality, pump in the tank body 1 of integrated treatment unit by sump pump 3 by water inlet pipe 2 again, then ion breakdown of emulsion is carried out successively, oxidation to harness emulsion, again through air supporting, make profit layering, upper strata oily substance can be drained and be collected by collection device 13 by upflow tube 12, waste water after deoiling adds coagulating agent and carries out coagulation, the fluffy solid material floats that coagulation produces is on upper strata, discharge by upflow tube 12, finally the water that coagulation terminates is squeezed into filtration unit 13 to filter, water outlet can reach National Industrial emission standard.
Treatment unit shown in Fig. 2, mainly comprise tank body 1, water inlet pipe 2, chemical feed pipe 4, air supporting pipe 6, aqueous vapor compressor 7, upflow tube 12, vent-pipe 8, water outlet 10, annular spray pipe 14 and nozzle 15, tank body 1 top arranges annular spray pipe 14, annular spray pipe 14 is arranged some nozzles 15, tank body 1 bottom is cone, and material is stainless steel plate; Water inlet pipe 2 is connected with sump pump 3, and chemical feed pipe 4 is connected with dosing pump 5, and air supporting pipe 6 is connected with aqueous vapor compressor 7, and vent-pipe 8 is connected with roots blower 9, and upflow tube 12 is connected with collection device 13, and water outlet 10 is connected with filtration unit 11; Described water inlet pipe 2, chemical feed pipe 4, air supporting pipe 6, vent-pipe 8, upflow tube 12, annular spray pipe 14 are equipped with valve.
Embodiment 1: certain Bearing Factory's emulsifying wastewater, water-quality COD is 70000-80000mg/L, oil content is 6000-8000mg/L, utilize treatment process of the present invention and emulsifying liquid waste water integrated treatment unit, treating processes is completed through pre-treatment, composite demulsification, air supporting, flocculation, filtration five steps, its intermediate ion emulsion splitter adopts calcium chloride, oxidation to harness emulsion agent is ozone, regulate pH to 8 after breakdown of emulsion, then flocculate, flocculation agent is PAFC and PAM, ventilates and stirs 2h, final its effluent quality COD≤100mg/L, oleaginousness≤10mg/L.
Embodiment 2: certain mechanical workout factory emulsifying wastewater, water-quality COD is 80000-100000mg/L, oil content is 8000-10000mg/L, utilize treatment process of the present invention and emulsifying liquid waste water integrated treatment unit, treating processes is completed through pre-treatment, composite demulsification, air supporting, flocculation, filtration five steps, its intermediate ion emulsion splitter adopts calcium chloride and aluminum chloride, oxidation to harness emulsion agent is clorox, regulate pH to 9, flocculation agent is PAC and PAM, ventilate and stir 3h, finally its effluent quality COD≤100mg/L, oleaginousness≤10mg/L.
Embodiment 3: certain waste water reclamation center, water-quality COD is 40000-60000mg/L, oil content is 3000-5000mg/L, utilize treatment process of the present invention and emulsifying liquid waste water integrated treatment unit, treating processes is completed through pre-treatment, composite demulsification, air supporting, flocculation, filtration five steps, its intermediate ion emulsion splitter adopts calcium chloride, oxidation to harness emulsion agent is potassium permanganate, regulate pH to 8, flocculation agent is PAC and PAM, ventilate and stir 1h, finally its effluent quality COD≤100mg/L, oleaginousness≤10mg/L.
Claims (4)
1. an emulsifying wastewater treatment process, is characterized in that: comprise pre-treatment, composite demulsification, air supporting, flocculation, filtration five steps, and its concrete technology method is as follows:
1) pre-treatment: the emulsifying wastewater that mechanical processing process produces is through precipitation, and the solid matter that density is large sinks to lower floor, waste liquid, by after pressure filter, regulates pH to be after neutrality, pumps into emulsifying liquid waste water integrated treatment unit;
2) composite demulsification: first carry out ion breakdown of emulsion, ion emulsion splitter is one or several in calcium chloride, Tai-Ace S 150, aluminum chloride, magnesium chloride, and sharp draft stirs 0.5-2h; Then carry out oxidation to harness emulsion, oxidation to harness emulsion agent is the one in ozone, clorox, potassium permanganate, and sharp draft stirs 0.5-2h;
3) air supporting: utilize and be arranged in the air supporting pipe of emulsifying liquid waste water integrated treatment unit bottom and aqueous vapor compressor and pass into compressed gas water mixture to the waste water after breakdown of emulsion stirs, air supporting volume pressure is 0.2-0.5MPa, air water volume ratio is 1:10-1:20, until stop air supporting after profit layering;
4) flocculate: after the oily substance on liquid level upper strata in emulsifying liquid waste water integrated treatment unit is overflowed, adjustment wastewater pH is 8-10, flocculation agent is added by the chemical feed pipe of medicine system and dosing pump, flocculation agent adopt in PAFC, PAC, PAM one or several, ventilate in flocculation process and stir 1-3h, stop after a large amount of alumen ustum to be generated ventilating, open air supporting, the alumen ustum being floated to liquid level upper strata is discharged by upflow tube;
5) filter: the waste water after process is pumped into filtration unit; filter packing is multistage filtrate; be followed successively by quartz sand-rice husk and the sub-mixture-activated carbon-quartz sand of sawdust from top to bottom; upper strata quartz sand plays the filtrate effect of protection lower floor; the sub-mixture of rice husk sawdust can filtering flocculent substance; the activated carbon degree of depth is adsorbed, and lower floor's quartz sand plays and supports upper strata filtrate effect.
2. a kind of emulsifying wastewater treatment process according to claim 1, wherein said emulsifying liquid waste water integrated treatment unit comprises tank body, water inlet pipe, chemical feed pipe, air supporting pipe, aqueous vapor compressor, upflow tube, vent-pipe, water outlet, annular spray pipe and nozzle, it is characterized in that: tank body top arranges annular spray pipe, annular spray pipe is arranged some nozzles; Water inlet pipe is connected with sump pump, and chemical feed pipe is connected with dosing pump, and air supporting pipe is connected with aqueous vapor compressor, and vent-pipe is connected with roots blower, and upflow tube is connected with collection device, and water outlet is connected with filtration unit.
3. a kind of emulsifying wastewater treatment process according to claim 2, it is characterized in that: described tank body lower part is cone, material is stainless steel plate.
4. a kind of emulsifying wastewater treatment process according to claim 2, is characterized in that: described water inlet pipe, chemical feed pipe, air supporting pipe, vent-pipe, upflow tube, annular spray pipe are equipped with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210340366.4A CN103073119B (en) | 2012-09-14 | 2012-09-14 | A kind of emulsifying wastewater treatment process and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210340366.4A CN103073119B (en) | 2012-09-14 | 2012-09-14 | A kind of emulsifying wastewater treatment process and device |
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| CN103073119A CN103073119A (en) | 2013-05-01 |
| CN103073119B true CN103073119B (en) | 2016-04-06 |
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