CN106315806A - Coagulating method for polymer-bearing wastewater of crude oil terminal plant - Google Patents
Coagulating method for polymer-bearing wastewater of crude oil terminal plant Download PDFInfo
- Publication number
- CN106315806A CN106315806A CN201610964537.9A CN201610964537A CN106315806A CN 106315806 A CN106315806 A CN 106315806A CN 201610964537 A CN201610964537 A CN 201610964537A CN 106315806 A CN106315806 A CN 106315806A
- Authority
- CN
- China
- Prior art keywords
- waste water
- moment
- crude oil
- containing poly
- coagulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a coagulating method for polymer-bearing wastewater of a crude oil terminal plant. The method comprises the following steps: pouring the polymer-bearing wastewater into a drum of a coagulating device; setting a rotating speed of a rectangular paddle within the scope of 250-700rmp; at 0s moment, starting a digital display speed-regulating stirring motor and stirring the polymer-bearing wastewater by the rectangular paddle at the preset rotating speed; at 60s moment, quickly adding PAC solution; at 90s moment, quickly adding PAM<+> solution; at 120s moment, closing the digital display speed-regulating stirring motor and quickly taking off the drum and standing by; after standing by, finishing the solid liquid separation of the materials in the drum; adopting a pipette for absorbing liquid into a sample tank of Hash 2100N turbidity meter on a half-deep part of the clear liquid; measuring the turbidity of the clear liquid, thereby acquiring the turbidity scope of the clear liquid within 7.7NTU, preferably, within the scope of 4.5-5.5NTU scope. According to the invention, the hydraulic retention time of the coagulating unit of the treating device of the polymer-bearing wastewater of the crude oil terminal plant is reduced, so that the load of the treating device of the polymer-bearing wastewater of the crude oil terminal plant is increased.
Description
Technical field
The present invention relates to the Produced Liquid processing technology field of offshore production platform, particularly relate to a kind of Crude Oil Terminal factory containing poly-
The coagulation method of waste water.
Background technology
Domestic certain Crude Oil Terminal factory, runs the most safely and smoothly according to design load, its crude oil that dispatches from the factory
The regulation of national standard has all been reached with efflux wastewater.Recent years, the pending crude oil that offshore production platform produces has volume increase
Trend, to join the Crude Oil Terminal factory built propose improve operating load an urgent demand, particularly improve Crude Oil Terminal factory contain
The load of poly-wastewater treatment equipment.In order to tackle the impact of international low oil price, active response national industrial policies, Crude Oil Terminal factory
Determine to improve the load containing poly-wastewater treatment equipment in the case of not extending.
It is known that want to improve operating load in the case of not extending, can only reduce and process at each containing poly-waste water
The hydraulic detention time of unit.Wherein, " coagulation " as the pretreatment unit containing poly-waste water, by reducing the waterpower of coagulation process
The time of staying, it is possible to increase containing the load of poly-wastewater treatment equipment.
Coagulation includes " cohesion " and " flocculation " two stages.Agglomeration phase: in mixing apparatus, by acutely (blade rotating speed
Scope is 120～150rpm), the stirring of (hydraulic detention time T=10～30s) in short-term, by medicament A (conventional aluminium polychlorid
PAC solution) it is evenly dispersed into whole water body, make elimination of colloid stability and form micro-floccule.Flocculated stage: in flocculation apparatus, leans on
Gently (the blade range of speeds 20～60rpm), long time (hydraulic detention time T=15～30min) stirring, by medicament B (often
Use PAMC PAM+Solution) it is evenly dispersed into whole water body, the micro-floccule making agglomeration phase generate is mutually interpolymerized
Integrated big flocculating body.
The coagulation theory of above-mentioned classics is thought: medicament B has an effect with waste water, it is necessary to be in " mild (the blade range of speeds
20～60rpm), long time (hydraulic detention time T=15～30min) " stirring condition under.Medicament B is sent out with waste water
Can raw effect, use " acutely (the blade range of speeds 120～150rpm), in short-term (hydraulic detention time T=10～30s) "
Stirring condition, classical coagulation theory is not given and clearly states.If medicament B is the same with medicament A, can be at " acutely (oar
The leaf range of speeds is 120～150rpm), in short-term (hydraulic detention time T=10～30s) " stirring condition under with waste water effect,
So hydraulic detention time of coagulation process will be greatly reduced, so that Crude Oil Terminal factory bearing containing poly-wastewater treatment equipment
Lotus significantly improves.
Summary of the invention
The invention aims to the hydraulic retention of the coagulation unit reducing Crude Oil Terminal factory containing poly-wastewater treatment equipment
Time, it is provided that a kind of new coagulation method that can significantly improve the Crude Oil Terminal factory load containing poly-wastewater treatment equipment.
The present invention a kind of Crude Oil Terminal factory coagulation method containing poly-waste water, it is technically characterized in that
Use coagulation device carry out coagulation to containing poly-waste water, described coagulation device include digital display speed-adjustable stir motor and
The shaft of digital display speed-adjustable stir motor connection, the rectangle blade of shaft lower end connection, the splendid attire cylinder containing poly-waste water；Circle
It is 0.8～1.5 that cylinder includes deep and drum diameter the ratio range of poly-waste water, and cylinder includes poly-waste water deeply and the leaching of rectangle blade
Not having depth ratio scope is 1.1～2.5, and drum diameter is 1.2～3.0 with the width ratio scope of rectangle blade；
1) by the cylinder pouring coagulation device containing poly-waste water into；
2) rotating speed (preferably 300-550rpm) in the range of 250～700rpm of rectangle blade is then set；Open number
Aobvious speed-adjustable stir motor, rectangle blade contains poly-waste water according to setting speed stirring；The 60s moment, be rapidly added 8wt%～
Polymeric aluminum chlorides solution 2～4 ml l of 15wt% contains poly-waste water；In the 90s moment, it is rapidly added 0.05wt%～0.25wt%
PAMC solution 0.4～2.0 ml l containing poly-waste water；In the 120s moment, close digital display speed-adjustable stir motor,
Take off rapidly cylinder and stand.1)
In view of above-mentioned technical characteristic, compared with existing coagulation method, the inventive method has the advantages that
One, the hydraulic detention time of flocculated stage foreshortens to 30s (classical coagulation theory recommendation: the waterpower of flocculated stage
The time of staying is 15-30min), the hydraulic detention time of the most whole coagulation is only 60s, thus contains for improving Crude Oil Terminal factory
The load of poly-wastewater treatment equipment provides theoretical foundation.
Two, at agglomeration phase and flocculated stage, rectangle blade rotating speed is equal, and the stirring of the most whole coagulation process is strong
Spend identical.This just explanation, can use identical equipment at agglomeration phase with flocculated stage, to lectotype selection and engineering construction band
Carry out facility.
Accompanying drawing explanation
The structural representation of the Tu1Shi Crude Oil Terminal factory coagulation device containing poly-waste water.
In Fig. 1,1 is digital display speed-adjustable stir motor, and 2 is shaft, and 3 is rectangle blade, and 4 is cylinder.
Detailed description of the invention
In following example, the waste water, medicament and the coagulation device that are used are described as follows.
(1) the Crude Oil Terminal factory water quality containing poly-waste water: pH=7.48, T=29.2 DEG C, electrical conductivity=11.67ms/cm is turbid
Degree=1878NTU, oil content=420mg/L.The medicament that agglomeration phase uses: commercially available powdery aluminium polychlorid (PAC), during use
It is configured to the solution of mass fraction 10%, uses in 24h.The medicament that flocculated stage uses: commercially available powdery cation polypropylene acyl
Amine (PAM+), it is configured to the solution of mass fraction 0.1% during use, uses in 24h.
(2) size of coagulation device: digital display speed-adjustable stir motor 1 (maximum (top) speed 2000rpm), cylinder 4 (internal diameter 5cm, height
15cm), shaft 2 (diameter 0.5cm, high 30cm, position and cylinder 4 dead in line), rectangle blade 3 (long 2.5cm, height
2.2cm), rectangle blade 3 base and cylinder 4 distance from bottom are 0.9cm, and rectangle blade 3 is waste water advanced 5cm time static.
Embodiment 1
The first step: 98mL is poured in cylinder 4 containing poly-waste water, installs coagulation device according to the set of dimensions of coagulation device；
Second step: set rectangle blade 3 rotating speed (selecting in the range of 100～1650rpm)；
3rd step: 0s moment, opens digital display speed-adjustable stir motor 1, and rectangle blade 3 gives up containing poly-according to setting speed stirring
Water；In the 60s moment, (used time is less than 2s) adds PAC solution 0.3mL rapidly；In the 90s moment, (used time is less than 5s) adds PAM rapidly+
Solution 0.1mL；In the 120s moment, close digital display speed-adjustable stir motor 1, take off rapidly cylinder 4 and stand 10min.
4th step: after cylinder 4 stands 10min, in cylinder 4, material completes solid-liquid separation, uses at the half of the clear liquid degree of depth
Liquid-transfering gun draws 30mL liquid in the sample cell of " Hash 2100N transmissometer ", then measures clear liquid turbidity.
Coagulation effect under the different blade rotating speed of table 1
As seen from Table 1, rectangle blade 3 rotating speed is when 250-700rpm scope, and coagulation effect is good；The most preferably 300～
During 550rpm scope, coagulation effect is more preferable, and now stillness of night turbidity is 4.5～5.5NTU.The big flocculating body formed after coagulation, determines it
Rectangle blade 3 critical speed sunk/float is in the range of 700～750rpm.
Embodiment 2
The first step: 98mL is poured in cylinder 4 containing poly-waste water, installs coagulation device according to the set of dimensions of coagulation device；
Second step: set rectangle blade 3 rotating speed as 150rpm；
3rd step: 0s moment, opens digital display speed-adjustable stir motor 1, and rectangle blade 3 gives up containing poly-according to setting speed stirring
Water；In the 60s moment, (used time is less than 2s) adds PAC solution 0.3mL rapidly；In the 90s moment, turn down rapidly rectangle blade 3 rotating speed extremely
55rpm is also rapidly added PAM+Solution 0.1mL (the whole process used time is less than 5s)；In the 5min moment, close digital display speed-adjustable stir electricity
Machine 1, takes off rapidly cylinder 4 and stands 10min.
4th step: after cylinder 4 stands 10min, in cylinder 4, material completes solid-liquid separation, uses at the half of the clear liquid degree of depth
Liquid-transfering gun draws 30mL liquid in the sample cell of " Hash 2100N transmissometer ", then measures clear liquid turbidity.
" the 5min moment " in 3rd step is changed into " when 15min moment, 20min moment, 25min moment, 30min respectively
Carve " and repeat other step, test data is shown in Table 2.
The test effect that on table 2 textbook, classical coagulation method obtains
As seen from Table 2, when using coagulation method classical on textbook, gained stillness of night turbidity 17.7～21.7NTU, it
The test effect of coagulation effect and coagulation method of the present invention be very close to, but its hydraulic detention time is really greatly prolonged.
Embodiment 3
The first step: 98mL is poured in cylinder 4 containing poly-waste water, installs coagulation device according to the set of dimensions of coagulation device；
Second step: set rectangle blade 3 rotating speed as 150rpm；
3rd step: 0s moment, opens digital display speed-adjustable stir motor 1, and rectangle blade 3 gives up containing poly-according to setting speed stirring
Water；In the 60s moment, (used time is less than 2s) adds PAC solution 0.3mL rapidly；In the 90s moment, (used time is less than 5s) adds PAM rapidly+
Solution 0.1mL；In the 120s moment, close digital display speed-adjustable stir motor 1, take off rapidly cylinder 4 and stand 10min.
4th step: after cylinder 4 stands 10min, in cylinder 4, material completes solid-liquid separation, uses at the half of the clear liquid degree of depth
Liquid-transfering gun draws 30mL liquid in the sample cell of " Hash 2100N transmissometer ", then measures clear liquid turbidity.
Change " the 120s moment " in the 3rd step into " 100s moment, 110s moment " respectively and repeat other step, test
Data are shown in Table 3.
Embodiment 4
The first step: 98mL is poured in cylinder 4 containing poly-waste water, installs coagulation device according to the set of dimensions of coagulation device；
Second step: set rectangle blade 3 rotating speed as 150rpm；
3rd step: 0s moment, opens digital display speed-adjustable stir motor 1, and rectangle blade 3 gives up containing poly-according to setting speed stirring
Water；In the 60s moment, (used time is less than 2s) adds PAC solution 0.3mL rapidly；In the 70s moment, (used time is less than 5s) adds PAM rapidly+
Solution 0.1mL；In the 100s moment, close digital display speed-adjustable stir motor 1, take off rapidly cylinder 4 and stand 10min.
4th step: after cylinder 4 stands 10min, in cylinder 4, material completes solid-liquid separation, uses at the half of the clear liquid degree of depth
Liquid-transfering gun draws 30mL liquid in the sample cell of " Hash 2100N transmissometer ", then measures clear liquid turbidity.
Changing " the 70s moment " in the 3rd step into " 80s moment ", " 100s moment " changes " 110s moment " into and repeats other
Step, test data is shown in Table 3.
Test effect within table 3 coagulation hydraulic detention time 60s
As seen from Table 3, when the hydraulic detention time of agglomeration phase and flocculated stage is all 30s, stillness of night turbidity is
19.1NTU, if continuing to reduce the hydraulic detention time in two stages, then stillness of night turbidity is significantly raised, and coagulation effect is deteriorated.
Claims (2)
1. the Crude Oil Terminal factory coagulation method containing poly-waste water, it is characterised in that including:
Using coagulation device to carry out coagulation to containing poly-waste water, described coagulation device includes digital display speed-adjustable stir motor and digital display
The shaft of speed-adjustable stir motor connection, the rectangle blade of shaft lower end connection, the splendid attire cylinder containing poly-waste water；In cylinder
Deep containing poly-waste water and drum diameter ratio range is 0.8～1.5, and it is the deepest with the submergence of rectangle blade that cylinder includes poly-waste water
Degree ratio range is 1.1～2.5, and drum diameter is 1.2～3.0 with the width ratio scope of rectangle blade；
1) by the cylinder pouring coagulation device containing poly-waste water into；
2) rotating speed of rectangle blade is then set in the range of 250～700rpm；Open digital display speed-adjustable stir motor, rectangle
Blade contains poly-waste water according to setting speed stirring；The 60s moment, be rapidly added 8wt%～15wt% polymeric aluminum chlorides solution 2～
4 ml l contain poly-waste water；In the 90s moment, it is rapidly added the PAMC solution 0.4 of 0.05wt%～0.25wt%
～2.0 ml l containing poly-waste water；In the 120s moment, close digital display speed-adjustable stir motor, take off rapidly cylinder and stand.
A kind of Crude Oil Terminal factory the most according to claim 1 coagulation method containing poly-waste water, it is characterised in that: described length
Square blade rotating speed is in the range of 300～550rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964537.9A CN106315806B (en) | 2016-11-04 | 2016-11-04 | A kind of coagulation method of the Crude Oil Terminal factory containing poly- waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964537.9A CN106315806B (en) | 2016-11-04 | 2016-11-04 | A kind of coagulation method of the Crude Oil Terminal factory containing poly- waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106315806A true CN106315806A (en) | 2017-01-11 |
| CN106315806B CN106315806B (en) | 2019-07-19 |
Family
ID=57815924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610964537.9A Active CN106315806B (en) | 2016-11-04 | 2016-11-04 | A kind of coagulation method of the Crude Oil Terminal factory containing poly- waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106315806B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139142A (en) * | 2007-08-21 | 2008-03-12 | 洪骧龙 | Oily sewage processing method |
| CN103232102A (en) * | 2013-05-09 | 2013-08-07 | 同济大学 | Method for accelerating solid-liquid separation of nanometer particle suspension |
-
2016
- 2016-11-04 CN CN201610964537.9A patent/CN106315806B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139142A (en) * | 2007-08-21 | 2008-03-12 | 洪骧龙 | Oily sewage processing method |
| CN103232102A (en) * | 2013-05-09 | 2013-08-07 | 同济大学 | Method for accelerating solid-liquid separation of nanometer particle suspension |
Non-Patent Citations (1)
| Title |
|---|
| 陈为旭等: "花岗石加工废水絮凝处理技术的研究", 《环境工程》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106315806B (en) | 2019-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bazrafshan et al. | Textile wastewater treatment by application of combined chemical coagulation, electrocoagulation, and adsorption processes | |
| Rodrigues et al. | Treatment of textile dye wastewaters using ferrous sulphate in a chemical coagulation/flocculation process | |
| AU2012215865C1 (en) | Method and apparatus for sludge flocculation | |
| Al-Shannag et al. | Reduction of COD and TSS from paper industries wastewater using electro-coagulation and chemical coagulation | |
| Zinatizadeh et al. | Polyacrylamide-induced coagulation process removing suspended solids from palm oil mill effluent | |
| Nasir et al. | Performance of aluminium sulphate and polyaluminium choloride in biodiesel wastewater | |
| Demoz et al. | Role of mixing energy in the flocculation of mature fine tailings | |
| Bayar et al. | Pre-treatment of pistachio processing industry wastewaters (PPIW) by electrocoagulation using Al plate electrode | |
| Iakovides et al. | Effect of electrolytes/polyelectrolytes on the removal of solids and organics from olive mill wastewater | |
| CN105084614A (en) | Drilling waste fluid processing method | |
| JPWO2014021228A1 (en) | Sludge treatment method and treatment apparatus | |
| Wang et al. | Preparation, characterization and flocculation performance of the inorganic–organic composite coagulant polyferric chloride and polydimethyldiallylammonium chloride | |
| CN111018070A (en) | Method and system for automatically controlling adding amount of flocculating agent of sludge water of water works | |
| Wang et al. | Flocculation performance of epichlorohydrin-dimethylamine polyamine in treating dyeing wastewater | |
| CN106315806A (en) | Coagulating method for polymer-bearing wastewater of crude oil terminal plant | |
| Xia et al. | A study on the deep dewatering of urban dewatered-sewage sludge by aluminum chloride | |
| Nan et al. | Characterization of re-grown floc size and structure: effect of mixing conditions during floc growth, breakage and re-growth process | |
| Bhatia et al. | Palm oil mill effluent pretreatment using Moringa oleifera seeds as an environmentally friendly coagulant: laboratory and pilot plant studies | |
| Latour et al. | Efficiency of polyaluminum nitrate sulfate–polyamine hybrid coagulants for silica removal | |
| Chaabane et al. | Treatment of pharmaceutical effluent by electrocoagulation coupled to nanofiltration | |
| CN103896475B (en) | A kind of Opsonizing method of sludge high-drying dehydration | |
| Akkache et al. | Effect of exo-polysaccharide concentration in the rheological properties and settling ability of activated sludge | |
| Liu et al. | Preparation, characterization and coagulation performance of a composite coagulant formed by the combination of polyferric sulfate (PFS) and Ce3+ | |
| He et al. | Characterization and performance of poly-silicic-cation coagulant in treatment of recycled paper wastewater | |
| Li et al. | Preparation, morphology and coagulation characteristics of a new polyferric chloride coagulant prepared using pyrite cinders |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |