CN108101274A - A kind of oils high-COD waste water pretreating process and equipment - Google Patents
A kind of oils high-COD waste water pretreating process and equipment Download PDFInfo
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- CN108101274A CN108101274A CN201711487120.9A CN201711487120A CN108101274A CN 108101274 A CN108101274 A CN 108101274A CN 201711487120 A CN201711487120 A CN 201711487120A CN 108101274 A CN108101274 A CN 108101274A
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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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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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
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- 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
- C02F1/5281—Installations for water purification using chemical agents
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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
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention provides a kind of oils high-COD waste water pretreating process, it is characterised in that：Waste water successively through being demulsified, point oil, iron-carbon micro-electrolysis, coagulation, flocculation, precipitation, in line or reuse after adsorption filtration process.The sewage treatment equipment and technique of the present invention, treatment effeciency is high, and water outlet meets discharge or reuse requirement, and easy to operate, operating cost is low.
Description
Technical field
The invention is related to sewage treatment field, more particularly to a kind of oils high-COD waste water pretreating process and equipment.
Background technology
Oily waste water is mainly derived from the Ministry of Industry such as oil, petrochemical industry, steel, coking, gas generating station, mechanical processing
Door.Contained oily substance in oily waste water, including natural oil, oil product, tar and its fraction and edible dynamic plant
Object oil ＆ fat class.From for the pollution of water body, mainly oil and tar.
Since the useless oil percentage in water of different industrial departments discharge is widely different, as generated waste water in oil refining process, contain
Oil mass is about 150-1000mg/L, and tar content is about 500-800mg/L in coking wastewater, in gas generating station discharge waste water
Tar content is up to 2000-3000mg/L.Therefore, processing method generally use Bubble-floating Method and filtration method, but such method is more
It is aerated using porous material, right porous material easily blocks, and influences to run.And rapid filter or pressure filter, then it manages relatively more tired
Hardly possible is, it is necessary to air recoil, hot water backwash.Such as mismanagement, filtrate easily blocks.
The content of the invention
It is contemplated that overcoming drawbacks described above, a kind for the treatment of effeciency height is provided, water outlet meets discharge or reuse requirement, operation
Simply, the low equipment of operating cost.
The present invention provides a kind of oils high-COD waste water pretreating process, it is characterised in that：Waste water successively through being demulsified, point
In line or reuse after oil, iron-carbon micro-electrolysis, coagulation, flocculation, precipitation, adsorption filtration process.
Further, a kind of oils high-COD waste water pretreating process provided by the invention, also has the characteristics that such：I.e.,
Above-mentioned demulsification process is：After adding pH adjusting agent adjusting pH to 8-9, addition demulsifier, PAC, PAM.
Further, a kind of oils high-COD waste water pretreating process provided by the invention, also has the characteristics that such：I.e.,
Above-mentioned iron-carbon micro-electrolysis process is：PH is adjusted to 2-3 using pH adjusting agent, it is 3 to make the iron carbon mass ratio in system：1, waterpower
Residence time is 1-1.5h.
Further, a kind of oils high-COD waste water pretreating process provided by the invention, also has the characteristics that such：I.e.,
Above-mentioned coagulation process is：After adding pH adjusting agent adjusting pH to 7-7.5, PAC and COD removers are added.
Further, a kind of oils high-COD waste water pretreating process provided by the invention, also has the characteristics that such：I.e.,
Above-mentioned flocculation basin process is：PAM is added, stops 0.5h-1h.
Further, a kind of oils high-COD waste water pretreating process provided by the invention, also has the characteristics that such：I.e.,
Above-mentioned adsorption filtration process is：After activated carbon adsorption, the process of filtering.
In addition, a kind of oils high-COD waste water pre-processing device provided by the invention, it is characterised in that：It is flowed through along waste water
Mode is disposed with demulsification pond, sloping plate oil separation tank, iron-carbon micro-electrolysis aeration tank, coagulating basin, flocculation basin, sedimentation basin, adsorbed
In line or reuse after filter；
Wherein, water collection tank in 0-1 is may be provided between each equipment, for collecting the water outlet in each stage.
It is general different with the proportion of water using suspended matter in waste water and reach separated purpose in oil separator.Oil separator
Construction mostly using flat flow, oily waste water enters the oil separator that plane is rectangle by water distributing trough, in the horizontal direction slow stream
Dynamic, the floatation surface on oil product in flowing is pushed in oil collecting pipe by oil collecting pipe or the Oil scraper for being arranged on pond face and is flowed into drain sump.
The heavy oil and other impurities to precipitate in oil separator, accumulates in pool bottom sludge bucket, is entered by sludge pipe in sludge pipe.
The iron-carbon micro-electrolysis is exactly using Principles of Metal Erosion method, forms the good work that primary battery handles waste water
Skill, also known as internal electrolysis, Filtration with Iron Filings etc..In the case that cold, using the micro-electrolysis material being filled in waste water from
Body generates 1.2V potential differences and carries out electrolysis processing to waste water, to achieve the purpose that degradable organic pollutant.If there is aeration, that is, it is oxygenated
With prevent iron filings hardened.It can also effectively adsorb, agglomerate pollutant in water, so as to enhance the clean-up effect to waste water.
Further, a kind of oils high-COD waste water pre-processing device provided by the invention, also has the characteristics that such：I.e.,
Further include sludge treatment device；
The pipeline being connected with sludge treatment device is equipped on above-mentioned sloping plate oil separation tank and sedimentation basin, for transport process
Filter residue afterwards is (such as：Sludge etc.).
Further, a kind of oils high-COD waste water pre-processing device provided by the invention, also has the characteristics that such：I.e.,
The pipeline being connected with demulsification pond is additionally provided on above-mentioned sludge treatment device, for the water outlet after transport process.
Further, a kind of oils high-COD waste water pre-processing device provided by the invention, also has the characteristics that such：I.e.,
Further include middle control unit；
Above-mentioned middle control unit includes monitoring device and control device；
Above-mentioned monitoring device is monitored for the water outlet status to each equipment and water outlet quality；
Above-mentioned monitoring device includes the equipment of quality inspection class (such as：COD detectors, pH detectors, concentration detector, solid content
Detector etc. for reaction water quality or property detection device) and level sensing module (be used for judge current device or
Liquid level in pond)；Need may also include other detection devices according to what is used；
The equipment of above-mentioned quality inspection class is used to monitor water outlet quality, the pH value of each process；
Above-mentioned level sensing module is used to monitor the water level in each stage；
Above-mentioned control device, according to monitored results, to the medicament charging of each processing equipment, the size of Inlet and outlet water and waste water
Circulation is controlled.
Such as：The control device general control waste water is successively by the process of setting, still, when monitoring device monitors to obtain
(standard according to the manufacturing set, for adjustable ginseng during the water outlet quality of each equipment conclusion not up to standard
Number), which adjusts the water outlet direction of current device, makes the reflux of processing water (such as：Some equipment before being back to
In), again together or twice process, until monitoring device conclusion for it is normal when just continue set process.
The function and effect of the present invention：
The present invention passes through reuse system again after treatment for the waste water for having a large amount of oily substances in production process, waste water
System, reuse effluent part to reach energy-saving and emission-reduction, save water resource.The sewage treatment equipment and technique of the present invention, treatment effeciency
Height, water outlet meet discharge or reuse requirement, and easy to operate, operating cost is low.
Description of the drawings
A kind of oils high-COD waste water pre-processing device structure diagram that attached drawing 1, embodiment are related to.
Specific embodiment
As shown in Figure 1, a kind of oils high-COD waste water pre-processing device is present embodiments provided, by the side flowed through along waste water
Formula is disposed with demulsification pond, sloping plate oil separation tank, first water collecting pit, iron-carbon micro-electrolysis (aeration tank), coagulating basin, flocculation basin, two
In line or reuse after secondary sedimentation basin, activated adoption filter；It is connected between each equipment by water pipe line, conveys each equipment
Water outlet.
In addition, sloping plate oil separation tank is conveyed with being additionally provided with the pipeline being connected with sludge treating system on secondary sedimentation tank
Treated in the two ponds solids such as sludge or solid-liquid residue；
The sludge treating system be additionally provided with the pipeline that is connected of demulsification pond, it is general will be during sludge dewatering treatment it is de-
Sewage backflow is further reprocessed to demulsification pond.
In addition, monitoring device is additionally provided in each equipment, such as：COD detection devices, pH detection devices, suspensibility detection device
Light etc., such monitoring device are connected with central control system；
Central control system regulates and controls the parameters such as the water rate in each equipment (pond), water outlet quality, inflow, flow velocity, and one
As in the case of, all water outlets circulate by the direction of setting, but when the monitoring data of acquisition is not up to standard, also adjustable
The revolution of water outlet, makes to be handled again in its process equipment before being turned back to or can also be according to the waste water of different phase
The factors such as mass concentration carry out the adjustment of dosage and dosing species.
The idiographic flow of above equipment is as follows：
Waste water initially enters demulsification pond, and addition pH adjusting agent is added demulsifier, PAC, PAM after adjusting pH to 8-9, reduced
Oily substance reaches iron-carbon micro-electrolysis by sloping plate oil separation tank and primary water collecting pit.
In iron-carbon micro-electrolysis aeration tank, waste water is pumped to iron-carbon micro-electrolysis aeration tank by water pump, using pH adjusting agent by pH
It adjusts to 2-3, all iron carbon mass ratioes are 3：COD is gone processing to reach 65%- by 1, hydraulic detention time 1-1.5h at this time
70%.
Waste water enters coagulating basin afterwards, by adding pH adjusting agent to 7-7.5, then adds PAC and COD removers.
Waste water enters flocculation basin afterwards, by adding PAM, stops 0.5h or so, by secondary precipitation, further removes
COD。
Waste water enters active carbon filter afterwards, adsorbs the large particulate matters such as suspended matter, colloid extra in water, finally reaches
To effluent standard or carry out advanced treatment and reclamation.
More than sloping plate oil separation tank and secondary sedimentation tank sludge are transported outward after dehydration, and institute's decontamination water returns to demulsification pond.
Claims (10)
1. a kind of oils high-COD waste water pretreating process, it is characterised in that：Waste water successively through being demulsified, point oil, iron-carbon micro-electrolysis,
In line or reuse after coagulation, flocculation, precipitation, adsorption filtration process.
2. a kind of oils high-COD waste water pretreating process as described in claim 1, it is characterised in that：
It is described demulsification process be：After adding pH adjusting agent adjusting pH to 8-9, addition demulsifier, PAC, PAM.
3. a kind of oils high-COD waste water pretreating process as described in claim 1, it is characterised in that：
The iron-carbon micro-electrolysis process is：PH is adjusted to 2-3 using pH adjusting agent, it is 3 to make the iron carbon mass ratio in system：1,
Hydraulic detention time is 1-1.5h.
4. a kind of oils high-COD waste water pretreating process as described in claim 1, it is characterised in that：
The coagulation process is：After adding pH adjusting agent adjusting pH to 7-7.5, PAC and COD removers are added.
5. a kind of oils high-COD waste water pretreating process as described in claim 1, it is characterised in that：
The flocculation basin process is：PAM is added, stops 0.5h-1h.
6. a kind of oils high-COD waste water pretreating process as described in claim 1, it is characterised in that：
The adsorption filtration process is：After activated carbon adsorption, the process of filtering.
7. a kind of oils high-COD waste water pre-processing device, it is characterised in that：The mode flowed through along waste water is disposed with demulsification
In line or reuse after pond, sloping plate oil separation tank, iron-carbon micro-electrolysis aeration tank, coagulating basin, flocculation basin, sedimentation basin, adsorption filter；
Wherein, water collection tank in 0-1 is may be provided between each equipment.
8. a kind of oils high-COD waste water pretreating process as claimed in claim 7, it is characterised in that：
Further include sludge treatment device；
The pipeline being connected with sludge treatment device is equipped on the sloping plate oil separation tank and sedimentation basin, after transport process
Filter residue.
9. a kind of oils high-COD waste water pretreating process as claimed in claim 8, it is characterised in that：
The pipeline being connected with demulsification pond is additionally provided on the sludge treatment device, for the water outlet after transport process.
10. a kind of oils high-COD waste water pretreating process as described in claim 7-9 is any, it is characterised in that：
Further include middle control unit；
The middle control unit includes monitoring device and control device；
The monitoring device is monitored for the water outlet status to each equipment and water outlet quality；
The control device, according to monitored results, the circulation to the medicament charging of each processing equipment, the size of Inlet and outlet water and waste water
It is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487120.9A CN108101274A (en) | 2017-12-29 | 2017-12-29 | A kind of oils high-COD waste water pretreating process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487120.9A CN108101274A (en) | 2017-12-29 | 2017-12-29 | A kind of oils high-COD waste water pretreating process and equipment |
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| Publication Number | Publication Date |
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| CN108101274A true CN108101274A (en) | 2018-06-01 |
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ID=62215139
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| CN201711487120.9A Withdrawn CN108101274A (en) | 2017-12-29 | 2017-12-29 | A kind of oils high-COD waste water pretreating process and equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081479A (en) * | 2018-09-20 | 2018-12-25 | 中石化（洛阳）科技有限公司 | Coking is vented tower oil-containing waste water treating device and method |
| CN109095707A (en) * | 2018-08-01 | 2018-12-28 | 天津大拇指环境工程有限公司 | A kind of urban wastewater treatment method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204958666U (en) * | 2015-08-26 | 2016-01-13 | 合肥中盛水务发展有限公司 | Processing system of automotive production waste water |
| CN106977023A (en) * | 2017-04-24 | 2017-07-25 | 福建师范大学 | A kind of processing method of mechanical processing industry cutting waste fluid |
-
2017
- 2017-12-29 CN CN201711487120.9A patent/CN108101274A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204958666U (en) * | 2015-08-26 | 2016-01-13 | 合肥中盛水务发展有限公司 | Processing system of automotive production waste water |
| CN106977023A (en) * | 2017-04-24 | 2017-07-25 | 福建师范大学 | A kind of processing method of mechanical processing industry cutting waste fluid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095707A (en) * | 2018-08-01 | 2018-12-28 | 天津大拇指环境工程有限公司 | A kind of urban wastewater treatment method and system |
| CN109081479A (en) * | 2018-09-20 | 2018-12-25 | 中石化（洛阳）科技有限公司 | Coking is vented tower oil-containing waste water treating device and method |
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Application publication date: 20180601 |
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