CN1974444A - Composite method of treating oil-containing sewage and waste water - Google Patents
Composite method of treating oil-containing sewage and waste water Download PDFInfo
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- CN1974444A CN1974444A CNA2006101510098A CN200610151009A CN1974444A CN 1974444 A CN1974444 A CN 1974444A CN A2006101510098 A CNA2006101510098 A CN A2006101510098A CN 200610151009 A CN200610151009 A CN 200610151009A CN 1974444 A CN1974444 A CN 1974444A
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- sewage
- biological contact
- oil
- hydrolysis acidification
- contact oxidation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention is composite method of treating oil containing sewage and waste water, and relates to sewage treating technology. The method of the present invention includes the following steps: ultrafiltering sewage the caustic refining shop exhausts in the inorganic membrane ultrafiltering apparatus, mixing the exhausted water with water from other shops, treating in the sewage quality regulating pond, cooling in the cooling tower, treating in the air floating pond, hydrolyzing and acidifying pond, biological contact oxidizing pond and the tube settler, and draining. The present invention has the advantages of small treating area, low cost, capacity of recovering useful components, etc.
Description
Technical field
The present invention relates to a kind of treatment process of sewage.
Background technology
Alkali refining washes CODcr=10000～80000mg/L, the BOD of the discharging of grease enterprise
5=10000～50000mg/L, oleaginousness 100～18000mg/L, and the oily substance in the sewage is the mixture of oil in water emulsion and dissolving oil, and chemical property is highly stable.Conventional traditional treatment process is: at first sewage enters oil trap, exclude oil slick in a part of water by leaving standstill, coagulative precipitation tank then is set, in this pond in sewage dosing coagulant and flocculation agent, make the COD in the sewage, BOD, suspended substance, oil in water emulsion forms flco and precipitates, after sewage comes out from coagulative precipitation tank, also contain a certain amount of flco in the water, these flcos are difficult for precipitation, the 3rd step was provided with airfloat equipment, air and clear water are squeezed in the incidental dissolving of airfloat equipment with high voltage style, by the dissolved air release of being located in the airfloat equipment these dissolved air waters are discharged again, utilize the effect of increasing of the microbubble in the water, take the flco that contains in the sewage out of the water surface, strike off with slag scraper.The 4th step was provided with anaerobic reation pool, and in the fs of handling, the acid formers that utilizes growth in the pond is with the CODcr, the BOD that contain in the sewage
5Oil in water emulsion, dissolving wet goods larger molecular organics is decomposed into small organic molecule, simultaneously original small organic molecule in the water is directly absorbed removal, utilize the anaerobic bacterium that grows in the pond that the small organic molecule in the water is absorbed in the subordinate phase of handling, change the required nutrition of microorganism growth breeding into, after sewage is discharged from anaerobic reation pool, also contain a certain amount of COD in the water, BOD and a spot of oils, again by the aeration oxidation pond, by in sewage, blasting air, utilize COD remaining in the airborne dioxygen oxidation sewage, BOD and oils, separate the discharge water after the water of discharge is and handles at last with water by the active sludge that contains in the draining of settling tank with the aeration oxidation pond.There are shortcomings such as the sewage disposal floor space is big, working cost is high, the operational management difficulty is big, working strength height in conventional treatment process.
Summary of the invention
The objective of the invention is to have the problem that sewage disposal place floor space is big, working cost is high, the operational management difficulty is big, working strength is high, a kind of composite method for the treatment of oil-containing sewage and waste water is provided in order to solve traditional technology.Method of the present invention is the alkali refining washes of a kind of grease enterprise discharging and leaches wastewater treatment method.The step that the present invention disposes of sewage is as follows: the waste water of a, the discharging of collection alkali refining draining room; B, the sewage that step a collects is squeezed in the mineral membrane ultrafiltration apparatus, reclaimed the oil in water emulsion that filtering separation is come out with charging pump; C, mineral membrane ultrafiltration apparatus filtered sewage are mixed with the discharge water that leaches workshop and other workshops; D, be introduced into the sewage quality equalizing tank through the mixed sewage of step c, enter air flotation pool after by the cooling tower cooling, 55% COD and BOD are removed, and reclaim the oil in water emulsion scum silica frost; E, the sewage after air flotation pool is handled enter hydrolysis acidification pool, and elastic solid filler is set in the hydrolysis acidification pool, and 15～35% COD and BOD are removed; F, the sewage of handling through hydrolysis acidification pool enter biological contact oxidation pond, and the elastic solid filler that is provided with in the biological contact oxidation pond carries out bio-oxidation to sewage and handles, and removes ammonia nitrogen simultaneously; G, the water of handling through biological contact oxidation pond enter tube settler, establish the inclined tube filler in the tube settler, and sewage is separated with mud, and the sewage after the processing is discharged; H, the isolating mud of tube settler entered in the sludge sump store, wherein a part is back in hydrolysis acidification pool and the biological contact oxidation pond by sludge pump; I, excess sludge in the sludge sump is transported outward after by sludge press filtration machine filter-press dehydration.The present invention has that sewage disposal place floor space is little, working cost is low, the raw materials for production of recyclable effective economic sector, reduces working strength and is the advantage of enterprise's wound benefit Reduction of Students' Study Load.
Embodiment
Embodiment one: the step that present embodiment is disposed of sewage is as follows: the waste water of a, the discharging of collection alkali refining draining room; B, the sewage that step a collects is squeezed in the mineral membrane ultrafiltration apparatus, reclaimed the oil in water emulsion of filtering separation with charging pump; C, mineral membrane ultrafiltration apparatus filtered sewage are mixed with the discharge water that leaches workshop and other workshops; D, be introduced into the sewage quality equalizing tank through the mixed sewage of step c, enter air flotation pool after by the cooling tower cooling, 55% COD and BOD are removed, and reclaim oil in water emulsion; E, the sewage after air flotation pool is handled enter hydrolysis acidification pool, and elastic solid filler is set in the hydrolysis acidification pool, and 15～35% COD and BOD are removed; F, the sewage of handling through hydrolysis acidification pool enter biological contact oxidation pond, and elastic solid filler is set in the biological contact oxidation pond, sewage is carried out bio-oxidation handle, and remove ammonia nitrogen simultaneously; G, the water of handling through biological contact oxidation pond enter tube settler, establish the inclined tube filler in the tube settler, and sewage is separated with mud, and the sewage after the processing is discharged; H, the isolating mud of tube settler entered in the sludge sump store, wherein a part is back in hydrolysis acidification pool and the biological contact oxidation pond by sludge pump; I, excess sludge in the sludge sump is transported outward after by sludge press filtration machine filter-press dehydration.
Embodiment two: add polymerize aluminum chloride and polyacrylamide in the air flotation pool of present embodiment in steps d, adding polymerize aluminum chloride and polyacrylamide pharmaceutical quantities is 10～350mg/L.Other is identical with embodiment one.
Polymerize aluminum chloride (abbreviating PAC as) that adds in the air flotation pool of present embodiment in steps d and polyacrylamide (abbreviating PAM as) make the remaining oils that contains in the sewage be abolished emulsified state and form flco and water sepn.PAC and PAM liquid is splendid attire respectively, and with volume pump medicament is pumped into sewer line with offeing medicine and mix with sewage.
Embodiment three: the hydrolysis acidification pool height of present embodiment in step e is 4～8m, elastic solid filler is set in the hydrolysis acidification pool, filler is that oleophobic hydrophilic organic plastics silk is made, and there is granular projection on the filling fibers surface, in order to adhere to the microbial film of generation.The elastic solid filler height is 2～6m, and elastic solid filler adheres to the acid-producing microorganisms of growth in the hydrolysis acidification pool; The COD volumetric loading of hydrolysis acidification pool is 2～16Kg/m
3.d, the BOD volumetric loading of hydrolysis acidification pool is 1～8Kg/m
3.d.Other is identical with embodiment one.
The acid-producing microorganisms that present embodiment is adhered on elastic solid filler reduces floor space in order to improve the hydrolysis acidification pool processing efficiency.
Embodiment four: the mode of water inlet under the hydrolysis acidification pool of present embodiment in step e adopts, upper water-out, hydraulic detention time is 4～12 hours; Distributing trough and the water distribution of perforation water distributing pipe are adopted in the hydrolysis acidification pool water inlet, and the tolerance water temperature range is 10～60 degree when normally moving, and establishes the spoil disposal facility at the bottom of the hydrolysis acidification pool.Other is identical with embodiment three.
Distributing trough and the water distribution of perforation water distributing pipe are adopted in the water inlet of present embodiment, make sewage be able to uniform distribution in the pond; Establish the spoil disposal facility at the bottom of the hydrolysis acidification pool, regularly the mud with the pond inner accumulated effluxes, and is used for preventing to stop up distributing pipe line.
Embodiment five: the elastic solid filler that is provided with in the biological contact oxidation pond of present embodiment in step f, filler is that oleophobic hydrophilic organic plastics silk is made, the height of elastic solid filler is 3～4 meters, and there is granular projection on the filling fibers surface, in order to adhere to aerobic type microorganism; The volumetric loading of biological contact oxidation pond COD is 1～6kg/m
3.d, the volumetric loading of biological contact oxidation pond BOD is 0.3～4Kg/m
3.d, the effective hydraulic detention time of sewage is 4～8 hours, and the ammonia nitrogen volumetric loading is 0.3～1.5Kg/m
3.d.Other is identical with embodiment one.
The aerobic microbiological of present embodiment is increased to 90～98% with the processing efficiency of biological contact oxidation pond.
Embodiment six: increased Root's blower during the biological contact oxidation pond aeration of present embodiment in step f, Root's blower is placed on outside the pond separately in the room.Other is identical with embodiment five.
Present embodiment utilizes Root's blower to blast air in biological contact oxidation pond, utilizes in the oxygenizement oxidation sewage of oxygen in the air pollution substance and offers aerobic microbiological metabolism growth requisite oxygen branch simultaneously.
Embodiment seven: increased sludge return pipe in the biological contact oxidation pond in the biological contact oxidation pond of present embodiment in step f, sludge return pipe enters in the pond at biological contact oxidation pond first lattice, and is tiled at the bottom of the pond.Other is identical with embodiment five.
The mud that the sludge return pipe of present embodiment utilizes unnecessary atmospheric oxidation system to produce to reach the purpose of entire treatment system sludge decrement, reduces the scale of sludge treatment machine.
Embodiment eight: increased power in the biological contact oxidation pond of present embodiment in step f and revolved mixed aerator, power revolves and mixes aerator and be installed on the aeration arm being evenly distributed at the bottom of the biological contact oxidation pond.Other is identical with embodiment five.
The power of establishing of present embodiment revolves that to mix aerator be to be used for the air capacity of distributing gas blower to supply with.
Embodiment nine: the tube settler waterpower surface load of present embodiment in step g is 1.5～4m
3/ m
2.h.Establish the inclined tube filler in the tube settler, filler adopts hydrophilic cellular PVC pipe, and many groups stick at one.Other is identical with embodiment one.
Present embodiment is provided with the inclined tube filler in tube settler, prolonged the path of settlement of sewage in effective vertical height, has improved the separation efficiency of mud and water, and the processing efficiency of conventional settling tank improves 1 times.
The present invention has reclaimed the oil in water emulsion more than 95%, and oil in water emulsion is applied in the production technique again, is enterprise's wound benefit Reduction of Students' Study Load; The present invention has removed 98% COD and BOD; The processing efficiency of microorganism has improved 90～98%.
The present invention has that sewage disposal place floor space is little, operating cost is low, recyclable effective economic sector Raw materials for production, reduce working strength and be the advantage of enterprise's wound benefit Reduction of Students' Study Load.
Claims (8)
1, a kind of composite method for the treatment of oil-containing sewage and waste water, its method steps is as follows: the waste water of a, the discharging of collection alkali refining draining room; B, the sewage that step a collects is squeezed in the mineral membrane ultrafiltration apparatus, reclaimed the oil in water emulsion of filtering separation with charging pump; C, mineral membrane ultrafiltration apparatus filtered sewage are mixed with the discharge water that leaches workshop and other workshops; D, be introduced into the sewage quality equalizing tank through the mixed sewage of step c, enter air flotation pool after by the cooling tower cooling, 55% COD and BOD are removed, and reclaim oil in water emulsion; E, the sewage after air flotation pool is handled enter hydrolysis acidification pool, and elastic solid filler is set in the hydrolysis acidification pool, and 15～35% COD and BOD are removed; F, the sewage of handling through hydrolysis acidification pool enter biological contact oxidation pond, and elastic solid filler is set in the biological contact oxidation pond, sewage is carried out bio-oxidation handle, and remove ammonia nitrogen simultaneously; G, the water of handling through biological contact oxidation pond enter tube settler, establish the inclined tube filler in the tube settler, and sewage is separated with mud, and the sewage after the processing is discharged; H, the isolating mud of tube settler entered in the sludge sump store, wherein a part is back in hydrolysis acidification pool and the biological contact oxidation pond by sludge pump; I, with excess sludge in the sludge sump by the aftertreatment of sludge press filtration machine filter-press dehydration.
2, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 1 is characterized in that adding polymerize aluminum chloride and polyacrylamide in the air flotation pool in steps d, and adding polymerize aluminum chloride and polyacrylamide pharmaceutical quantities is 10～350mg/L.
3, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 1, it is characterized in that the hydrolysis acidification pool height in step e is 4～8m, it is that oleophobic hydrophilic organic plastics silk is made that elastic solid filler is set in the hydrolysis acidification pool, the elastic solid filler height is 2～6m, and elastic solid filler adheres to the acid-producing microorganisms of growth in the hydrolysis acidification pool; The COD volumetric loading of hydrolysis acidification pool is 2～16Kg/m
3.d, the BOD volumetric loadings of hydrolysis acidification pool are 1～8Kg/m
3.d.
4, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 3, it is characterized in that hydrolysis acidification pool in step e adopt under the mode of water inlet, upper water-out, hydraulic detention time is 4～12 hours; Distributing trough and the water distribution of perforation water distributing pipe are adopted in the hydrolysis acidification pool water inlet, and the tolerance water temperature range is 10～60 degree when normally moving, and establishes the spoil disposal facility at the bottom of the hydrolysis acidification pool.
5, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 1, it is characterized in that in the biological contact oxidation pond in step f elastic stereo being set, filler is that oleophobic hydrophilic organic plastics silk is made, the height of elastic solid filler is 3～4 meters, is used for adhering to aerobic type microorganism; The volumetric loading of biological contact oxidation pond COD is 1～6kg/m
3.d, the volumetric loading of biological contact oxidation pond BOD is 0.3～4Kg/m
3.d, the effective hydraulic detention time of sewage is 4～8 hours, and the ammonia nitrogen volumetric loading is 0.3～1.5Kg/m
3.d.
6, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 5 has increased Root's blower when it is characterized in that the aeration of the biological contact oxidation pond in step f, Root's blower is placed on outside the pond separately in the room.
7, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 5, it is characterized in that having increased sludge return pipe in the biological contact oxidation pond in step f, sludge return pipe enters in the pond at biological contact oxidation pond first lattice, and be tiled at the bottom of the pond 8, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 5, it is characterized in that having increased in the biological contact oxidation pond in step f power and revolve mixed aerator, power revolves and mixes aerator and be installed on the aeration arm being evenly distributed at the bottom of the biological contact oxidation pond.
8, a kind of composite method for the treatment of oil-containing sewage and waste water according to claim 1 is characterized in that the tube settler waterpower surface load in step g is 1.5～4m
3/ m
2.h.Establish the inclined tube filler in the tube settler, filler adopts hydrophilic cellular PVC pipe, and many groups stick at one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101510098A CN100460347C (en) | 2006-11-10 | 2006-11-10 | Composite method of treating oil-containing sewage and waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101510098A CN100460347C (en) | 2006-11-10 | 2006-11-10 | Composite method of treating oil-containing sewage and waste water |
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| Publication Number | Publication Date |
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| CN1974444A true CN1974444A (en) | 2007-06-06 |
| CN100460347C CN100460347C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101510098A Active CN100460347C (en) | 2006-11-10 | 2006-11-10 | Composite method of treating oil-containing sewage and waste water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153229A (en) * | 2011-02-25 | 2011-08-17 | 大连市市政设计研究院有限责任公司 | Process for treating high-concentration oil refining wastewater |
| CN102229458A (en) * | 2011-05-13 | 2011-11-02 | 十堰碧水源环保技术中心 | Emulsion-containing waste water treatment method in automobile industry |
| CN102701454A (en) * | 2012-06-15 | 2012-10-03 | 浦华环保有限公司 | Hydrolysis acidizing settling pond and application thereof |
| CN101327996B (en) * | 2007-06-22 | 2013-03-13 | 宝山钢铁股份有限公司 | Treating process of dilute emulsified oily watewater |
| CN105036462A (en) * | 2015-06-30 | 2015-11-11 | 湖北山鼎环境科技股份有限公司 | MVR technology-based machining emulsified wastewater treatment method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680345Y (en) * | 2003-04-28 | 2005-02-23 | 陈业钢 | Integral continuous film filtering device |
| CN1257851C (en) * | 2003-10-29 | 2006-05-31 | 中国石油化工股份有限公司 | Method for treating waste water for prodcing catalyst for olefinic polymerization |
-
2006
- 2006-11-10 CN CNB2006101510098A patent/CN100460347C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327996B (en) * | 2007-06-22 | 2013-03-13 | 宝山钢铁股份有限公司 | Treating process of dilute emulsified oily watewater |
| CN102153229A (en) * | 2011-02-25 | 2011-08-17 | 大连市市政设计研究院有限责任公司 | Process for treating high-concentration oil refining wastewater |
| CN102153229B (en) * | 2011-02-25 | 2012-07-25 | 大连市市政设计研究院有限责任公司 | Process for treating high-concentration oil refining wastewater |
| CN102229458A (en) * | 2011-05-13 | 2011-11-02 | 十堰碧水源环保技术中心 | Emulsion-containing waste water treatment method in automobile industry |
| CN102229458B (en) * | 2011-05-13 | 2012-07-04 | 十堰碧水源环保技术中心 | Emulsion-containing waste water treatment method in automobile industry |
| CN102701454A (en) * | 2012-06-15 | 2012-10-03 | 浦华环保有限公司 | Hydrolysis acidizing settling pond and application thereof |
| CN105036462A (en) * | 2015-06-30 | 2015-11-11 | 湖北山鼎环境科技股份有限公司 | MVR technology-based machining emulsified wastewater treatment method |
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| CN100460347C (en) | 2009-02-11 |
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Address after: 150090, No. two 918 street, Songbei science and technology, Heilongjiang, Harbin Patentee after: Beifang Environment Protection Engineering Co., Ltd., Harbin Address before: 150090, No. 13, Shun Yi Street, Nangang District, Heilongjiang, Harbin Patentee before: Beifang Environment Protection Engineering Co., Ltd., Harbin |