CN104986889B - The efficient degradation method technique that a kind of pressure break drilling wastewater treatment is used - Google Patents
The efficient degradation method technique that a kind of pressure break drilling wastewater treatment is used Download PDFInfo
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- CN104986889B CN104986889B CN201510317836.9A CN201510317836A CN104986889B CN 104986889 B CN104986889 B CN 104986889B CN 201510317836 A CN201510317836 A CN 201510317836A CN 104986889 B CN104986889 B CN 104986889B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 230000015556 catabolic process Effects 0.000 title claims abstract description 7
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 7
- 238000004065 wastewater treatment Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 8
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000001112 coagulating effect Effects 0.000 claims description 7
- 238000005276 aerator Methods 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000011001 backwashing Methods 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 238000005345 coagulation Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 4
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 241001602688 Pama Species 0.000 claims description 3
- 238000004945 emulsification Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000003311 flocculating effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003809 water extraction Methods 0.000 claims description 3
- AHLWZBVXSWOPPL-RGYGYFBISA-N 20-deoxy-20-oxophorbol 12-myristate 13-acetate Chemical compound C([C@]1(O)C(=O)C(C)=C[C@H]1[C@@]1(O)[C@H](C)[C@H]2OC(=O)CCCCCCCCCCCCC)C(C=O)=C[C@H]1[C@H]1[C@]2(OC(C)=O)C1(C)C AHLWZBVXSWOPPL-RGYGYFBISA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- 229910052757 nitrogen Inorganic materials 0.000 claims 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims 1
- 101150098207 NAAA gene Proteins 0.000 claims 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims 1
- 239000010883 coal ash Substances 0.000 claims 1
- 239000012153 distilled water Substances 0.000 claims 1
- 239000003350 kerosene Substances 0.000 claims 1
- 239000003960 organic solvent Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 235000010265 sodium sulphite Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007800 oxidant agent Substances 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005189 flocculation Methods 0.000 abstract description 3
- 230000016615 flocculation Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 abstract 2
- 239000003292 glue Substances 0.000 abstract 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 abstract 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- -1 alcohol ethers Chemical class 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Abstract
The present invention provides a kind of water treatment technology in pressure break oil-gas mining, it is characterized in that the relevant organic wastewater of the pressure break for high load capacity difficult degradation has efficient fast efficacy and simple for process, innovative point of the invention is in Optimum utilization system heat, system acid-base property, advantage is provided for every kind of oxidant plays optimum performance, string oxidation point is decomposed for the continued oxidation of line, follow-up flocculation separation efficient quick.In fracturing fluids such as water base, oil base, emulsus, the acidity constituted as material with guanidine glue, polymer, surfactant（Such as linear glue, slippery water）There to be extensive prospect in the drilling wastewater treatment of generation.
Description
Technical field
The present invention relates to the big wastewater treatment work of the complicated component produced during a kind of oil gas pressure break drilling, difficulty of degrading
Skill, the technique is widely used in oil gas field, shale gas field, CBM Fracturing drilling wastewater treatment.
Background technology
Separation, flocculation sediment, oxidation, absorption, electrolysis etc. is mainly concentrated to flow on pressure break drilling waste water treatment process at present
The various combination of journey, such as Jiangsu oilfield can reach discharge after being processed using " flocculation-oil removal-precipitation-dual-stage oxidation " facture
Standard, but the processing cost high disposal time is long, " neutralization-coagulant precipitation-charcoal absorption " PROCESS FOR TREATMENT of Sichuan oilfield exploitation
After can reach discharge standard, but in well site application more inconvenience, processing cost is expensive.All in all there is disadvantage in such method
End, such as processing cost is expensive, and process time is long, or the requirement of technology realizability is high, or technology is not yet ripe, or potential safety hazard
Greatly, therefore a kind of efficient quick is found.Simple economy, effective handling process and method, are studies in China pressure break drilling
Refractory wastewater provides a kind of approach.
The content of the invention
It is efficient and convenient it is an object of the invention to provide a kind of high-efficiency and economic, pressure break drilling wastewater treatment work capable of being industrialized
Skill.It is characteristic of the invention that filter net type oil removal desanding demulsification regulating reservoir, the combined oxidation degraded pond under the conditions of acid surfactant, in
With hot coagulant precipitation pond, gravity mixing pressure difference absorption filtering pool.Innovative point of the invention is in Optimum utilization system heat, system soda acid
Property, allow every kind of oxidant to play optimum performance and advantage is provided, so that the stage oxidation for designing different oxidants decomposes string point
It is line, not only enables oxidation susceptibility that the continuation had an effect but also produce timeliness is concentrated from different aspect, follow-up flocculation separation is high
Effect.This process structure is compact simple and direct, is combined integrated height, and performance benefits are protruded, and result can qualified discharge.This process matching
Infrastructure device ripe cheap product can be found on current market, for the industrialization of technique provides reliable guarantee.
1st, concrete technology technical scheme steps of the present invention are as follows：
(1) pressure break drilling waste water is first passed through into adjustable mesh number sieve considering net and be collected into reception tank regulation homogeneous water (needs broken
Stirred when newborn and add crude oil and reverse demulsifier to be demulsified) introduce afterwards the oil removing of coalescence inclined plate sedimentation module natural subsidence, suspension and
Silt particle, technical parameter：Hydraulic detention time 30~360 minutes, oil-containing≤580mg/L is then pumped into haydite, fiber filtering module
Filtering, technical parameter suspension content≤100mg/L, 20~100m/h of filtering velocity, 10~50min of backwashing time collect greasy dirt,
Silt particle is focused on.
(2) water after step (1) treatment is pumped into (0.0001~0.0003) % acidity alcohol ethers equipped with aerator
The combined oxidation pond of surfactant condition, oxidation pond is provided with back flow reaction device, while pH controls are sequentially added into (0.1 in 2-5
~1) % hydrogen peroxide+after (0.125~1.25) % ferrous sulfate (10~30) minutes+(0.001~0.02) % ammonium persulfates
After (30~90) minute+(0.02~0.4) % sodium hypochlorite (10~30) minutes.
(3) the water pump such as heat of neutralization coagulating basin that step (2) is degraded by combined oxidation, and stir addition (0.1~2) %
Calcium oxide after stir 3 to 5 minutes, stirred when temperature rises and be slowly added to a kind of (0.001~1) 50% multifunction ion and form
Mould assembly emulsion and preparation method thereof product (number of patent application：2013104803279) or use：30%PAC: 1 sodium metasilicate it is cloudy from：
15%PAM is added and is stood reaction (1-3) hour every stirring in 5 minutes successively.
(4) supernatant of step (3) coagulating sedimentation is pumped into during gravity mixes differential absorption filtering pool, is filled in filtering ponds
There are the filtrate based on flyash and activated carbon, technical parameter：2~20m/h of filtering velocity, 20~50min of backwashing time, suspension drop
Low rate 20%-50% is Con trolling index, while collect silt particle focusing on.
Brief description of the drawings
Accompanying drawing 1 is the explanation and displaying to present invention process flow.
Specific embodiment
Embodiment 1
1st, the efficient degradation method technique that a kind of pressure break drilling wastewater treatment is used, according to process chart its process portion master
Structures equipment is wanted to see the table below：
2nd, the efficient degradation method technique for being used according to a kind of pressure break drilling wastewater treatment is by equipment in table and required valve
After pipeline assembling is linked into the equipment of combination process parameter, the operation treatment of its technique performs following steps：
(1) assay before wastewater treatment is combined, closing down for regulating reservoir demulsification operation is determined, screen filtration dress is then opened
Put, open elevator pump carries out slagging-off demulsification standing by waste water lifting to regulating reservoir, and caution of operation pumps into mixing, rank is precipitated being held in
The Duan Shuiliu rates of climb are less than sinking speed, according to assay execution hydraulic detention time in 30~360 minutes.
(2) water outlet that will perform regulation process step introduces combined oxidation degraded pond, opens aerator and is aerated 3 points
Clock, control tolerance 0.05m3/m2, while it is 3 to control pH, 0.0001% alcohol ethers surfactant is added, stop aeration, open backflow
Device, sets the oxidant adding apparatus time and adds order, sequentially adds 0.6% hydrogen peroxide, 1.2% ferrous sulfate 20
The ammonium persulfate that 0.05% is added after minute adds turbulence reaction 1 hour, this process after 0.03% sodium hypochlorite after 30 minutes
Concentrate to have an effect for the oxidant for making different performance principle and carry out oxidation Decomposition with a High-efficiency Sustainable in string face.
(3) coagulative precipitation tank will be risen to by the water extraction of step (2), adds 1% calcium oxide to stir 5 points under stirring
Tested after clock temperature rise when be slowly added to 0.02% complex coagulation precipitation reagent (a kind of multifunction ion association type emulsion and
Its preparation method product (number of patent application：2013104803279)：PAC: sodium metasilicate: PAMA is 5: 3: 0.2
: 1.7) and stand reaction coordinate efficient flocculating within 2 hours.
(4) supernatant processed by step (3) is pumped into during gravity mixes differential absorption filtering pool, while processing wadding
Coagulate sedimentation basin sludge settling to recovery pond.Then the pressure of absorption filtering pool is adjusted to 0.1Mpa, now filtrate activity in filter tank
Carbon and flyash carry out adsorption filtration to remaining pollutant in water, adjust filtering velocity 5m/h, and it is 30-60 points to control the adsorption filtration time
After the qualifieds such as clock, sampling and testing COD, prepare back flush discharge, note backwash time control at 20 minutes, test suspension
Reduced rate can stop water outlet after being more than 20%.Whole processing step knot after the greasy dirt water sand that a step is produced is reclaimed simultaneously
Beam.
Embodiment 2
1st, field scene fracturing outlet liquid in real oil is tested with above-mentioned technology steps flow chart, design scale is
200m2/d
Detailed process technical scheme steps are as follows：
(1) fracturing wastewater is first passed through into adjustable mesh number sieve consider net and be collected into after reception tank regulation homogeneous water that to introduce coalescence oblique
The oil removing of plate settling module natural subsidence, suspension and silt particle, technical parameter：Hydraulic detention time 120 minutes, oil-containing≤180mg/
L, is then pumped into haydite, fiber filtering modular filtration, technical parameter suspension content≤60mg/L, filtering velocity 30m/h, during backwash
Between 30min, collect greasy dirt, silt particle focuses on.
(2) water after step (1) treatment is pumped into the combined oxidation pond equipped with aerator, opens aerator aeration 3
Minute, control tolerance 0.05m3/m2, while it is 3 to control pH, 0.0001% AEO surfactant is added, stop exposing
Gas, sequentially adds 0.5g hydrogen peroxide+0.06g ferrous sulfate+0.001g ammonium persulfates+0.02g time chlorine after 60 minutes after 20 minutes
Sour sodium 30 minutes.
(3) coagulative precipitation tank will be risen to by the water extraction of step (2), 0.5g calcium oxide stirring 5 is added under stirring
Tested after minute and a kind of (the multifunction ion associations of 0.005g of 0.01g complex coagulations precipitation reagent are slowly added to when temperature rises
Type emulsion and preparation method thereof product (number of patent application：2013104803279)：0.003gPAC：0.00018g sodium metasilicate：
0.00182g PAMAs and stand reaction coordinate efficient flocculating within 2 hours.
(4) supernatant of step (3) coagulating sedimentation is pumped into during gravity mixes differential absorption filtering pool, is filled in filtering ponds
There are the filtrate based on flyash and activated carbon, technical parameter：Filtering velocity 8m/h, backwashing time 30min, suspension reduced rate 30%
Silt particle is collected simultaneously to focus on.
(5) test result such as following table.
From testing result above can be seen that a kind of efficient degradation method technique that pressure break drilling wastewater treatment uses and its
The processing system of parameter step composition is applicable the organic pressure break drilling waste water of high concentration completely, from process operation result CODcrSS stones
The numerical value of oils colourity complies fully with the first discharge standard in GB (GB8978-1996), combined process and its step parameter
Process is simple can be shown efficiently, Applied economy is that pressure break and oil field water process provide effective way, in oil field of Environment Protection
To be widely used.
Claims (1)
1. a kind of efficient degradation method of pressure break drilling waste water, comprises the following steps：
(1) pressure break drilling waste water is first passed through into adjustable mesh number strainer and is collected into reception tank, adjusted and caused after homogeneous water poly-
The oil removing of knot inclined plate sedimentation module natural subsidence, suspension and silt particle, wherein hydraulic detention time are 120 minutes, oil-containing≤
180mg/L, is then pumped into haydite, fiber filtering modular filtration, and suspension content≤60mg/L, filtering velocity is 30m/h, during backwash
Between be 30min, collect greasy dirt, silt particle focuses on；
(2) water after step (1) treatment is pumped into the combined oxidation pond equipped with aerator, opens aerator and be aerated 3 minutes,
Control tolerance 0.05m3/m2, while it is 3 to control pH, 0.0001% AEO surfactant is added, stop exposing
Gas, sequentially adds 0.5g hydrogen peroxide+0.06g ferrous sulfate+0.001g ammonium persulfates+0.02g time chlorine after 60 minutes after 20 minutes
Sour sodium 30 minutes；
(3) coagulative precipitation tank will be risen to by the water extraction of step (2), adds 0.5g calcium oxide to stir under stirring 5 minutes
After test temperature rise when be slowly added to 0.01g complex coagulation precipitation reagents, the complex coagulation precipitation reagent by it is multi-functional from
Sub- association type emulsion：PAC:Sodium metasilicate：PAMA is with 0.005g：0.003g：0.00018g：The ratio of 0.00182g
Example composition, and stand reaction coordinate efficient flocculating within 2 hours；The preparation side of wherein described multifunction ion association type emulsion
Method is：A. distilled water 26 is added in 100 beakers, DAC monomer 12g are added, AM monomer 20g are added, NaAA monomer 6g are added, plus
Enter C18DMAAC monomer 0.01g, add NaAMPS monomer 0.6g, adjust pH to 8 with NaOH, are passed through nitrogen, are stirred for dissolving,
25 ± 1 DEG C of temperature of regulation, as water phase；
B. weigh 3.9g and compare 7 to measure by Span80 and Twee20：0.5 composition, add organic solvent kerosene 29g, with 550 turns/
The speed divided is stirred 25 minutes, stable emulsion is formed, as oil phase；
C. water is mutually slowly added to oil phase under 400 revs/min of rotating speed, keeps 50 DEG C of isoperibol, under nitrogen protection
Add 0.11% ammonium persulfate and sodium sulfite, 0.03% azodiisobutyronitrile, stirring reaction 4-6 hours, formed it is multi-functional from
Sub- association type emulsion；
(4) supernatant of step (3) coagulating sedimentation is pumped into during gravity mixes differential absorption filtering pool, powder is housed in filtering ponds
Filtrate based on coal ash and activated carbon, filtering velocity 8m/h, backwashing time 30min, suspension reduced rate 30% collects silt particle simultaneously
Focus on.
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| CN110386680A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | Product oil storage field sewage integrated treatment device |
| CN109851105B (en) * | 2019-02-25 | 2022-02-01 | 中国石油天然气股份有限公司 | Multi-stage treatment method and treatment system for measure waste liquid |
| CN112679020B (en) * | 2020-12-25 | 2022-05-03 | 成都硕特科技股份有限公司 | Low-cost shale gas fracturing flowback fluid treatment system and treatment method |
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| CN101397180B (en) * | 2008-08-06 | 2011-09-07 | 濮阳市天地人环保工程技术有限公司 | Technique for centralized processing and comprehensive utilization of drilling wastes |
| CN104558401A (en) * | 2013-10-14 | 2015-04-29 | 郭保祥 | Multi-functional ion association type emulsion and preparation method thereof |
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