CN108328889A - A kind of cold rolling wastewater dregs of fat innocuity disposal system and method - Google Patents
A kind of cold rolling wastewater dregs of fat innocuity disposal system and method Download PDFInfo
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- CN108328889A CN108328889A CN201810168742.3A CN201810168742A CN108328889A CN 108328889 A CN108328889 A CN 108328889A CN 201810168742 A CN201810168742 A CN 201810168742A CN 108328889 A CN108328889 A CN 108328889A
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- Prior art keywords
- sludge
- dregs
- fat
- cold rolling
- anaerobic
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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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
Abstract
The invention discloses a kind of dregs of fat innocuity disposal system and its methods.System includes anaerobic reaction slot, muddy water mixing channel, SBR biochemistry pools and effluent trough；Thermophilic oily bacterium is inoculated in anaerobic reaction slot, anaerobic reaction slot is connected to muddy water mixing channel by pipeline, and muddy water mixing channel is connected to by overflow manner with SBR biochemistry pools, and the water outlet of SBR biochemistry pools is located at top, which is connected to by pipeline with effluent trough；Effluent trough is provided with discharge outlet and the cycle mouth of a river, and the cycle mouth of a river is connected to by circulation pipe with the muddy water mixing channel.Processing method of the present invention is to carry out anaerobic digestion to dregs of fat sludge by obligate thermophilic oily bacterium using special anaerobic pond, sludge through Anaerobic Treatment is using the further resolution process of biochemical aerobic process, finally oil content in sludge is made to decompose completely, and remaining in the sludge after stabilizing inorganic point can be used as the Demulsification and coagulant process section recycling that demulsifier is back to again before air-float technology.
Description
Technical field
The invention belongs to cold rolling wastewater dregs of fat dangerous waste processing technology fields, and in particular to a kind of cold rolling wastewater dregs of fat are innoxious
Processing system and method.
Background technology
Cold rolling oil-containing waste water treatment process often uses air supporting or ceramic membrane ultrafitration as pretreating process in steel industry
Then most of oil emulsion removal in waste water is subjected to biochemical treatment again, wherein no matter using air-float technology or ceramic membrane ultrafitration
Technique can all generate dregs of fat sludge, and the mud cake generated after these dregs of fat sludge dewaterings at present is needed according to environmental requirement as dangerous
Waste is disposed, and cost of disposal is higher, and is had greater environmental impacts.
Invention content
For deficiencies of the prior art, stable, cost that the purpose of the present invention is to provide a kind for the treatment of effects
Low and environmental-friendly cold rolling wastewater dregs of fat innocuity disposal system and method.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of cold rolling wastewater dregs of fat innocuity disposal system, including anaerobic reaction slot, muddy water mixing channel, SBR biochemistry pools and
Effluent trough；Thermophilic oily bacterium is inoculated in the anaerobic reaction slot, the anaerobic reaction slot is connected to muddy water mixing channel by pipeline,
The muddy water mixing channel is connected to by overflow manner with the SBR biochemistry pools, and the water outlet of the SBR biochemistry pools is located at top,
The water outlet is connected to by pipeline with the effluent trough；The effluent trough is provided with discharge outlet and the cycle mouth of a river, the recirculated water
Mouth is connected to by circulation pipe with the muddy water mixing channel.
Further, further include regeneration sludge slot, the mud inlet of the regeneration sludge slot is biochemical by sludge pipe and the SBR
The bottom in pond is connected to, and the lower part of the regeneration sludge slot is also communicated with sludge pipe, for regeneration sludge to be discharged, so that cycle makes
With.
Further, it is equipped with heating device and the first temperature monitor in the anaerobic reaction slot, described detests for controlling
Oxygen reaction tank interior reaction temperature is between 28-30 DEG C.
Further, pPH detectors are provided in the anaerobic reation pool, for controlling PHpH in the anaerobic reation pool
Between 7.0-7.5.
Further, it is provided with mixed stirring device in the muddy water mixing channel.
Further, the SBR biochemistry pools bottom is provided with the first aerator, the oxygen for providing aerobic biochemical reaction
Gas.
Further, the SBR biochemistry pools bottom is provided with dissolved oxygen detector, and aeration quantity is adjusted for detecting.
Further, the SBR biochemistry pools are equipped with heating device and second temperature detector, are reacted for controlling in pond
Temperature is between 28-30 DEG C.
Further, the regeneration sludge trench bottom is provided with the second aerator, for providing the regeneration sludge
Required oxygen.
A kind of cold rolling wastewater dregs of fat method for innocent treatment is based on above-mentioned cold rolling wastewater dregs of fat innocuity disposal system, packet
Include following steps：
1) after the cold rolling wastewater dregs of fat enter anaerobic reaction slot, the oil in the dregs of fat is reacted in the anaerobic digestion of thermophilic oily microorganism
To decomposition；The anaerobic reaction slot interior reaction temperature control is between 30-35 DEG C, and PH is controlled between 7.0-7.5, entire anaerobism
The digestion reaction time was at 10-15 days.
2) sludge after anaerobic digestion is mixed by being pumped into be mixed to get with the recirculation water of effluent trough in muddy water mixing channel
Mud waste water.
3) the mixing sludge waste water gravity described in, which flows into, carries out biology aerobic decomposition, the biochemistry pool in SBR biochemistry pools
Interior reaction temperature control is adjusted aeration quantity between 28-30 DEG C, while by dissolved oxygen meter；The aerobic reaction time exists
Between 10-12 hours.
4) supernatant enters in effluent trough after the mixture mud waste water described in is stablized, and passes through the adjusting of pumped back waste water station
Pond, and oil content has been decomposed the sludge finished by being pumped into sludge regeneration tank after stablizing.
5) regeneration sludge slot is equipped with blast aerator, and the regeneration tank reaction time is 3-5 days, and the sludge after regeneration is as broken
Emulsion recycles, and Demulsification and coagulant reaction, warp are carried out to cold rolling oil-containing waste water by the pretreatment unit of conveying pumped back waste water station
The dregs of fat are formed again after air supporting reaction returns to present treatment system.
Compared with prior art, the present invention has the advantages that：
1, solve the dregs of fat that are generated in existing steel industry cold rolling wastewater processing procedure as hazardous waste need it is high at
The problem of being handled outside this committee realizes internal resourceization cycle, substantially reduces processing cost.
2, any medicament is not added, it is environmentally friendly, do not generate secondary pollution.
3, the sludge residue after stabilizing can be used as demulsifier and reuse, and reduce cost for wastewater treatment.
4, system run all right, easy to operate.
Description of the drawings
Fig. 1 is technological process and the structural schematic diagram of the present invention.
In attached drawing：1-anaerobic reaction slot；11-pH detectors；12-the first temperature monitor；2-muddy water mixing channels；
21-mixed stirring devices；3-SBR biochemistry pools；31-dissolved oxygen detectors；32-second temperature detectors；33-the first aeration
Device；4-effluent troughs；5-regeneration sludge slots；51-the second aerator；61-delivery pumps；62-sludge recovery pumps；63—
Water circulating pump.
Specific implementation mode
With reference to specific embodiment, invention is further described in detail.
A kind of cold rolling wastewater dregs of fat innocuity disposal system, including anaerobic reaction slot 1, muddy water mixing channel 2, SBR biochemistry pools
With effluent trough 3；Thermophilic oily bacterium is inoculated in the anaerobic reaction slot 1, the anaerobic reaction slot 1 and muddy water mixing channel 2 pass through pipe
Road is connected to, and the muddy water mixing channel 2 is connected to by overflow manner with the SBR biochemistry pools 3, the water outlet of the SBR biochemistry pools 3
Positioned at top, which is connected to by pipeline with the effluent trough 4；The effluent trough 4 is provided with discharge outlet and the cycle mouth of a river,
The cycle mouth of a river is connected to by circulation pipe with the muddy water mixing channel 2.
Further include regeneration sludge slot 5, the mud inlet of the regeneration sludge slot 5 passes through sludge pipe and the SBR biochemistry pools 3
Bottom is connected to, and the lower part of the regeneration sludge slot 5 is also communicated with sludge pipe, for regeneration sludge to be discharged, for recycling.
In order to make this more optimized stable operation of set system, it is equipped with simultaneously equipped with heating device in the anaerobic reaction slot 2
First temperature monitor 12, for controlling the anaerobic reation pool interior reaction temperature between 28-30 DEG C.The anaerobic reaction
PH detectors 11 are provided in pond, for controlling in the anaerobic reation pool PH between 7.0-7.5.The muddy water mixing channel
Mixed stirring device 21 is provided in 2.3, the SBR biochemistry pools bottom is provided with the first aerator 33, aerobic for providing
The oxygen of biochemical reaction.3 bottom of SBR biochemistry pools is provided with dissolved oxygen detector 31, and aeration quantity is adjusted for detecting.It is described
SBR biochemistry pools 5 be equipped with heating device simultaneously be equipped with second temperature detector 32, for controlling pond interior reaction temperature in 28-30
Between DEG C.5 bottom of regeneration sludge slot is provided with the second aerator 51, for providing the regeneration sludge requisite oxygen
Gas.
Have enough pressure heads in transmission process in order to ensure waterpower, the anaerobic reaction slot 1 and muddy water mixing channel 2 it
Between pipeline on be provided with delivery pump 61, sludge recovery pump 62 is provided on the sludge pipe, is arranged on the circulation pipe
There is water circulating pump 63.
Based on the processing method of above-mentioned cold rolling wastewater dregs of fat innocuity disposal system, including following processing step：
1) after the cold rolling wastewater dregs of fat enter anaerobic reaction slot 1, the oil in the dregs of fat is reacted in the anaerobic digestion of thermophilic oily microorganism
It is decomposed；1 interior reaction temperature of the anaerobic reaction slot control is between 30-35 DEG C, and PH is controlled between 7.0-7.5, entirely
The anaerobic digestion reaction time was at 10-15 days；
2) sludge after anaerobic digestion is mixed by being pumped into be mixed to get with the recirculation water of effluent trough in muddy water mixing channel 2
Mud waste water；
3) the mixing sludge waste water gravity described in, which flows into, carries out biology aerobic decomposition, the biochemistry pool in SBR biochemistry pools 3
Interior reaction temperature control is adjusted aeration quantity between 28-30 DEG C, while by dissolved oxygen meter；The aerobic reaction time exists
Between 10-12 hours；
4) supernatant enters in effluent trough 4 after the mixture mud waste water described in is stablized, and passes through the tune of pumped back waste water station
Pond is saved, and oil content has been decomposed the sludge finished by being pumped into sludge regeneration tank 5 after stablizing；
5) regeneration sludge slot 5 is equipped with blast aerator, and 5 reaction time of regeneration tank is 3-5 days, the sludge conduct after regeneration
Demulsifier reuse carries out Demulsification and coagulant reaction, through gas by the pretreatment unit of conveying pumped back waste water station to cold rolling oil-containing waste water
The dregs of fat are formed again after floating reaction returns to present treatment system.
Treatment effect of the present invention is stablized, not only can be by the oily substance harmlessness disposing in the dregs of fat, moreover it is possible to will finally generate
Inorganic point of sludge recycling and front end waster water process, the process method equipment automation mechanized operation degree is high, operation operation
It is easy.
In whole processing technology, the control process of each process section is automatically performed by PLC, without adding any other medicine
Agent.
The above embodiment of the present invention is only example to illustrate the invention, and is not the implementation to the present invention
The restriction of mode.For those of ordinary skill in the art, other can also be made not on the basis of the above description
With the variation and variation of form.Here all embodiments can not be exhaustive.It is every to belong to technical scheme of the present invention
Row of the changes and variations that derived from still in protection scope of the present invention.
Claims (10)
1. a kind of cold rolling wastewater dregs of fat innocuity disposal system, which is characterized in that including anaerobic reaction slot, muddy water mixing channel, SBR
Biochemistry pool and effluent trough；Thermophilic oily bacterium is inoculated in the anaerobic reaction slot, the anaerobic reaction slot and muddy water mixing channel pass through
Pipeline is connected to, and the muddy water mixing channel is connected to by overflow manner with the SBR biochemistry pools, the water outlet of the SBR biochemistry pools
Positioned at top, which is connected to by pipeline with the effluent trough；The effluent trough is provided with discharge outlet and the cycle mouth of a river, institute
The cycle mouth of a river is stated to be connected to the muddy water mixing channel by circulation pipe.
2. cold rolling wastewater dregs of fat innocuity disposal system as described in claim 1, which is characterized in that further include regeneration sludge
The mud inlet of slot, the regeneration sludge slot is connected to by sludge pipe with the bottom of the SBR biochemistry pools, the regeneration sludge slot
Lower part is also communicated with sludge pipe, for regeneration sludge to be discharged, for recycling.
3. cold rolling wastewater dregs of fat innocuity disposal system as described in claim 1, which is characterized in that the anaerobic reaction slot
It is interior to be equipped with heating device and the first temperature monitor, for controlling the anaerobic reation pool interior reaction temperature between 28-30 DEG C.
4. cold rolling wastewater dregs of fat innocuity disposal system as described in claim 1, which is characterized in that the anaerobic reation pool
PH detectors are inside provided with, for controlling in the anaerobic reation pool pH between 7.0-7.5.
5. cold rolling wastewater dregs of fat innocuity disposal system as described in claim 1, which is characterized in that the muddy water mixing channel
Inside it is provided with mixed stirring device.
6. cold rolling wastewater dregs of fat innocuity disposal system as described in claim 1, which is characterized in that the SBR biochemistry pools
Bottom is provided with the first aerator, the oxygen for providing aerobic biochemical reaction.
7. cold rolling wastewater dregs of fat innocuity disposal system as described in claim 1, which is characterized in that the SBR biochemistry pools
Bottom is provided with dissolved oxygen detector, and aeration quantity is adjusted for detecting.
8. cold rolling wastewater dregs of fat innocuity disposal system as claimed in claim 6, which is characterized in that the SBR biochemistry pools
Equipped with heating device and second temperature detector, for controlling pond interior reaction temperature between 28-30 DEG C.
9. cold rolling wastewater dregs of fat innocuity disposal system as claimed in claim 2, which is characterized in that the regeneration sludge slot
Bottom is provided with the second aerator, for providing oxygen needed for the regeneration sludge.
10. a kind of cold rolling wastewater dregs of fat method for innocent treatment, which is characterized in that based on the cold rolling wastewater described in claim 2
Dregs of fat innocuity disposal system, includes the following steps：
1) after the cold rolling wastewater dregs of fat enter anaerobic reaction slot, oil in the dregs of fat is obtained by the reaction point in the anaerobic digestion of thermophilic oily microorganism
Solution；The anaerobic reaction slot interior reaction temperature control is between 30-35 DEG C, and PH is controlled between 7.0-7.5, entire anaerobic digestion
Reaction time was at 10-15 days；
2) sludge after anaerobic digestion is mixed to get mixing sludge by being pumped into the recirculation water in muddy water mixing channel with effluent trough
Waste water；
3) the mixing sludge waste water gravity described in flows into and carries out biology aerobic decomposition in SBR biochemistry pools, anti-in the biochemistry pool
Answer temperature control that aeration quantity is adjusted between 28-30 DEG C, while by dissolved oxygen meter；The aerobic reaction time is in 10-12
Between hour；
4) supernatant enters in effluent trough after mixture mud waste water described in is stablized, by the regulating reservoir of pumped back waste water station,
And oil content has been decomposed the sludge finished by being pumped into sludge regeneration tank after stablizing；
5) regeneration sludge slot is equipped with blast aerator, and the regeneration tank reaction time is 3-5 days, and the sludge after regeneration is as demulsifier
It recycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168742.3A CN108328889B (en) | 2018-02-28 | 2018-02-28 | Cold rolling wastewater oil residue harmless treatment system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168742.3A CN108328889B (en) | 2018-02-28 | 2018-02-28 | Cold rolling wastewater oil residue harmless treatment system and method |
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| Publication Number | Publication Date |
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| CN108328889A true CN108328889A (en) | 2018-07-27 |
| CN108328889B CN108328889B (en) | 2021-03-09 |
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| CN201810168742.3A Active CN108328889B (en) | 2018-02-28 | 2018-02-28 | Cold rolling wastewater oil residue harmless treatment system and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986953A (en) * | 1974-04-01 | 1976-10-19 | Interlake, Inc. | Treatment of waste rolling oil |
| US4004918A (en) * | 1974-09-04 | 1977-01-25 | Nissin Steel Co. Ltd. | Method of treating waste produced during stainless steel making |
| CN101481195A (en) * | 2009-02-09 | 2009-07-15 | 武汉钢铁(集团)公司 | Anaerobic-aerobic combined biological treatment method for oily wastewater of cold rolling mill |
| CN202519129U (en) * | 2012-02-17 | 2012-11-07 | 武汉都市环保工程技术股份有限公司 | System for coprocessing cold-rolled oil-contained wastewater by physical-chemical and bio-chemical methods |
| CN106315908A (en) * | 2015-06-29 | 2017-01-11 | 宝山钢铁股份有限公司 | Deep processing method and device of cold rolling oil-containing wastewater |
| CN106316023A (en) * | 2016-09-21 | 2017-01-11 | 重庆赛迪热工环保工程技术有限公司 | Supercritical water gasification and recycling method and apparatus for steel mill high-oil-content iron-containing sludge |
-
2018
- 2018-02-28 CN CN201810168742.3A patent/CN108328889B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986953A (en) * | 1974-04-01 | 1976-10-19 | Interlake, Inc. | Treatment of waste rolling oil |
| US4004918A (en) * | 1974-09-04 | 1977-01-25 | Nissin Steel Co. Ltd. | Method of treating waste produced during stainless steel making |
| CN101481195A (en) * | 2009-02-09 | 2009-07-15 | 武汉钢铁(集团)公司 | Anaerobic-aerobic combined biological treatment method for oily wastewater of cold rolling mill |
| CN202519129U (en) * | 2012-02-17 | 2012-11-07 | 武汉都市环保工程技术股份有限公司 | System for coprocessing cold-rolled oil-contained wastewater by physical-chemical and bio-chemical methods |
| CN106315908A (en) * | 2015-06-29 | 2017-01-11 | 宝山钢铁股份有限公司 | Deep processing method and device of cold rolling oil-containing wastewater |
| CN106316023A (en) * | 2016-09-21 | 2017-01-11 | 重庆赛迪热工环保工程技术有限公司 | Supercritical water gasification and recycling method and apparatus for steel mill high-oil-content iron-containing sludge |
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