CN105923838A - Method for deep processing and recycling oil refining wastewater - Google Patents

Method for deep processing and recycling oil refining wastewater Download PDF

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Publication number
CN105923838A
CN105923838A CN201610440303.4A CN201610440303A CN105923838A CN 105923838 A CN105923838 A CN 105923838A CN 201610440303 A CN201610440303 A CN 201610440303A CN 105923838 A CN105923838 A CN 105923838A
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CN
China
Prior art keywords
water
waste
refinery
oil refining
inorganic
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.)
Pending
Application number
CN201610440303.4A
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Chinese (zh)
Inventor
颜家保
苏健聪
蔡兴旺
霍晓琼
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Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Engineering WUSE
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Application filed by Wuhan University of Science and Engineering WUSE filed Critical Wuhan University of Science and Engineering WUSE
Priority to CN201610440303.4A priority Critical patent/CN105923838A/en
Publication of CN105923838A publication Critical patent/CN105923838A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)

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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)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention relates to a method for deep processing and recycling oil refining wastewater. A technical scheme of the invention includes: adding 15-25 mg/L inorganic/organic composite coagulant into biochemically-treated oil refining wastewater for coagulating, and removing colloid and residual macromolecular organics in the oil refining wastewater; pumping the coagulated oil refining wastewater into an ozone catalytic oxidation column, wherein a ceramsite catalyst using manganese nitrate, titanium dioxide and copper nitrate as active ingredients is disposed in the ozone catalytic oxidation column; introducing ozone gas, keeping ozone concentration in a liquid phase under 25-35 mg/L, and reacting for 12-15 min; finally, pumping the oil refining wastewater subjected to ozone catalytic oxidation into a polyvinylidene fluoride tubular-membrane ultrafiltration membrane assembly, and using effluent of the polyvinylidene fluoride tubular-membrane ultrafiltration membrane assembly as supplementary water of recirculating cooling wat4er of a refinery for refuse.

Description

A kind of method of refinery(waste) water advanced treatment and reclamation
Technical field
The invention belongs to refinery(waste) water further treatment technique field.A kind of method being specifically related to refinery(waste) water advanced treatment and reclamation.
Background technology
Along with country is to low-carbon economy and the further attention to energy-saving and emission-reduction, improve the emission request of refinery(waste) water, oil refining enterprise faces the severeest environmental protection pressure.Big-and-middle-sized oil refining enterprise of China has tens, refinery(waste) water processes the process technique mostly using " oil removal air supporting A/O is biochemical ", refinery(waste) water after biochemistry, need to combine the complicated subsequent technique such as ultrafiltration and bio-contact oxidation through BAF and could meet the discharging standards newly promulgated, therefore development process is short, simple for process, reduced investment wastewater deep treatment process is increasingly subject to those skilled in the art concern.
Refinery(waste) water advanced treatment process mainly has at present:
Refinery(waste) water after biochemistry first carrying out bio-contact oxidation, then carries out bio-aeration process, filter through multi-medium filtering device, the last ultrafiltration of waste water after filtration, the method complex process, hydraulic detention time length and operating cost are higher.
" process for reclaiming of a kind of refinery(waste) water " (CN103771656B), the method is that refinery(waste) water carries out oil removing and oil removal process, sequencing batch activated sludge process and forward osmosis membrane bioreactor process successively, processed by oil removing and oil removal and remove petroleum-type and float, processed by SBR and remove most COD and ammonia nitrogen, remaining COD is removed by OMBR, and retain float and inorganic salt, the method water quality treatment is preferable, but there is the shortcoming such as complex treatment process and operating cost height.
" deep treatment method of a kind of refinery(waste) water " (CN102276053B), the method is the former water as advanced treating of the refinery(waste) water after processing with oil plant two stage biological, acetic acid solution and former water are squeezed into BAF simultaneously, control the dosing ratio of acetic acid, co-substrate principle is utilized to remove the remaining Organic substance in refinery(waste) water further, the method constantly to add acetic acid, and add the waste water after acetic acid and neutralize owing to also needing in acidity to add alkali, and therefore processing cost is high.
Summary of the invention
It is contemplated that in overcoming prior art defect, it is therefore an objective to the method that the refinery(waste) water advanced treatment and reclamation that a kind of technique is simple, operating cost is low, non-secondary pollution produce raw and COD removal efficiency is high is provided.
For achieving the above object, the technical solution used in the present invention is as follows:
(1) inorganic/organic composite coagulant adding 15 ~ 25mg/L in the refinery(waste) water after biochemistry carries out coagulation.
(2) refinery(waste) water after coagulation pumping into catalytic ozonation tower, catalytic ozonation tower is built-in with catalyst;Being passed through ozone gas again, keeping the ozone concentration in liquid phase is 25 ~ 35mg/L, and the response time is 12 ~ 15min.
(3) refinery(waste) water after catalytic ozonation pumping into Kynoar tubular membrane ultrafiltration membrane module, the water outlet of Kynoar tubular membrane ultrafiltration membrane module is as the supplementary Water circulation of oil plant recirculated cooling water.
Refinery(waste) water after described biochemistry is the refinery(waste) water after secondary biochemical and precipitation, and the COD in waste water is 65 ~ 120mg/L.
Described inorganic/organic composite coagulant is aluminium polychlorid and the complex of polyacrylamide or for the complex of polymerization ferrous sulfate with polyacrylamide;Polyacrylamide is 15 ~ 20wt% of inorganic/organic composite coagulant.
Described catalyst is the haydite with manganese nitrate, titanium dioxide and copper nitrate as active component, and described haydite particle diameter is 4 ~ 6mm.
Owing to using technique scheme, the present invention compared with prior art has a following good effect:
(1) present invention uses aluminium polychlorid or polymerization ferrous sulfate to carry out coagulating treatment with the compound coagulant of polyacrylamide composition, and coagulation effect is more preferable, and the COD removal effect in refinery(waste) water is more preferably.
(2) present invention first carries out coagulation with inorganic/organic composite coagulant to the refinery(waste) water after biochemistry, remove the colloid in refinery(waste) water and the larger molecular organics of residual, be conducive to follow-up ozone oxidation, and catalytic ozonation uses the haydite with manganese nitrate, titanium dioxide and copper nitrate as active component as catalyst, catalytic efficiency is higher, required ozone dosage is lower, and the required response time is shorter.
(3) first coagulation, rear catalytic ozonation remove the group technology of major part pollutant ultrafiltration again in refinery(waste) water, and ultrafilter membrane is not easily blocked.
(4) ultra-filtration water COD of the present invention is 33.8 ~ 39.3mg/L, and water quality meets circulating cooling system and supplements the water quality requirement of water.
Therefore, the present invention has the advantages that technique is simple, COD removal efficiency is high, operating cost is low and non-secondary pollution produce are raw.
Detailed description of the invention
Below by detailed description of the invention, the present invention is described further, not the restriction to its protection domain.
Catalyst described in this detailed description of the invention is the haydite with manganese nitrate, titanium dioxide and copper nitrate as active component, and described haydite particle diameter is 4 ~ 6mm.Embodiment repeats no more.
Embodiment 1
A kind of method of refinery(waste) water advanced treatment and reclamation.Described in the present embodiment, method is:
(1) inorganic/organic composite coagulant adding 15 ~ 18mg/L in the refinery(waste) water after biochemistry carries out coagulation.
(2) refinery(waste) water after coagulation pumping into catalytic ozonation tower, catalytic ozonation tower is built-in with catalyst;Being passed through ozone gas again, keeping the ozone concentration in liquid phase is 25 ~ 30mg/L, and the response time is 14 ~ 15min.
(3) refinery(waste) water after catalytic ozonation pumping into Kynoar tubular membrane ultrafiltration membrane module, the water outlet of Kynoar tubular membrane ultrafiltration membrane module is as the supplementary Water circulation of oil plant recirculated cooling water.
Refinery(waste) water after biochemistry described in the present embodiment is the refinery(waste) water after secondary biochemical and precipitation, and the COD in waste water is 65 ~ 85mg/L.
Inorganic/organic composite coagulant described in the present embodiment is the complex of aluminium polychlorid and polyacrylamide;Polyacrylamide is 15 ~ 18wt% of inorganic/organic composite coagulant.
Ultra-filtration water COD of the present embodiment is 36.5 ~ 39.3mg/L, and water quality meets circulating cooling system and supplements the water quality requirement of water.
Embodiment 2
A kind of method of refinery(waste) water advanced treatment and reclamation.Described in the present embodiment, method is:
(1) inorganic/organic composite coagulant adding 18 ~ 21mg/L in the refinery(waste) water after biochemistry carries out coagulation.
(2) refinery(waste) water after coagulation pumping into catalytic ozonation tower, catalytic ozonation tower is built-in with catalyst;Being passed through ozone gas again, keeping the ozone concentration in liquid phase is 28 ~ 32mg/L, and the response time is 13 ~ 14min.
(3) refinery(waste) water after catalytic ozonation pumping into Kynoar tubular membrane ultrafiltration membrane module, the water outlet of Kynoar tubular membrane ultrafiltration membrane module is as the supplementary Water circulation of oil plant recirculated cooling water.
Refinery(waste) water after biochemistry described in the present embodiment is the refinery(waste) water after secondary biochemical and precipitation, and the COD in waste water is 80 ~ 100mg/L.
Described in the present embodiment, inorganic/organic composite coagulant is the complex for polymerization ferrous sulfate Yu polyacrylamide;Polyacrylamide is 16 ~ 19wt% of inorganic/organic composite coagulant.
The ultra-filtration water COD average out to 35.3 ~ 37.1mg/L of the present embodiment, water quality meets circulating cooling system and supplements the water quality requirement of water.
Embodiment 3
A kind of method of refinery(waste) water advanced treatment and reclamation.Described in the present embodiment, method is:
(1) inorganic/organic composite coagulant adding 21 ~ 25mg/L in the refinery(waste) water after biochemistry carries out coagulation.
(2) refinery(waste) water after coagulation pumping into catalytic ozonation tower, catalytic ozonation tower is built-in with catalyst;Being passed through ozone gas again, keeping the ozone concentration in liquid phase is 31 ~ 35mg/L, and the response time is 12 ~ 13min.
(3) refinery(waste) water after catalytic ozonation pumping into Kynoar tubular membrane ultrafiltration membrane module, the water outlet of Kynoar tubular membrane ultrafiltration membrane module is as the supplementary Water circulation of oil plant recirculated cooling water.
Refinery(waste) water after biochemistry described in the present embodiment is the refinery(waste) water after secondary biochemical and precipitation, and the COD in waste water is 100 ~ 120mg/L.
Inorganic/organic composite coagulant described in the present embodiment is aluminium polychlorid and the complex of polyacrylamide or for the complex of polymerization ferrous sulfate with polyacrylamide;Polyacrylamide is 17 ~ 20wt% of inorganic/organic composite coagulant.
This detailed description of the invention compared with prior art has a following good effect:
(1) this detailed description of the invention uses aluminium polychlorid or polymerization ferrous sulfate to carry out coagulating treatment with the compound coagulant of polyacrylamide composition, and coagulation effect is more preferable, and the COD removal effect in refinery(waste) water is more preferably.
(2) this detailed description of the invention first carries out coagulation with inorganic/organic composite coagulant to the refinery(waste) water after biochemistry, remove the colloid in refinery(waste) water and the larger molecular organics of residual, be conducive to follow-up ozone oxidation, and catalytic ozonation uses the haydite with manganese nitrate, titanium dioxide and copper nitrate as active component as catalyst, catalytic efficiency is higher, required ozone dosage is lower, and the required response time is shorter.
(3) first coagulation, rear catalytic ozonation remove the group technology of major part pollutant ultrafiltration again in refinery(waste) water, and ultrafilter membrane is not easily blocked.
(4) ultra-filtration water COD of this detailed description of the invention is 33.8 ~ 39.3mg/L, and water quality meets circulating cooling system and supplements the water quality requirement of water.
Therefore, this detailed description of the invention has the advantages that technique is simple, COD removal efficiency is high, operating cost is low and non-secondary pollution produce are raw.

Claims (4)

1. the method for a refinery(waste) water advanced treatment and reclamation, it is characterised in that the method comprises the following steps:
(1) inorganic/organic composite coagulant adding 15 ~ 25mg/L in the refinery(waste) water after biochemistry carries out coagulation;
(2) refinery(waste) water after coagulation pumping into catalytic ozonation tower, catalytic ozonation tower is built-in with catalyst;Being passed through ozone gas again, keeping the ozone concentration in liquid phase is 25 ~ 35mg/L, and the response time is 12 ~ 15min;
(3) refinery(waste) water after catalytic ozonation pumping into Kynoar tubular membrane ultrafiltration membrane module, the water outlet of Kynoar tubular membrane ultrafiltration membrane module is as the supplementary Water circulation of oil plant recirculated cooling water.
2. the method for refinery(waste) water advanced treatment and reclamation as claimed in claim 1, it is characterised in that the refinery(waste) water after described biochemistry is the refinery(waste) water after secondary biochemical and precipitation, and the COD in waste water is 65 ~ 120mg/L.
3. the method for as claimed in claim 1 refinery(waste) water advanced treatment and reclamation, it is characterised in that described inorganic/organic composite coagulant is aluminium polychlorid and the complex of polyacrylamide or for the complex of polymerization ferrous sulfate with polyacrylamide;Polyacrylamide is 15 ~ 20wt% of inorganic/organic composite coagulant.
4. the method for refinery(waste) water advanced treatment and reclamation as claimed in claim 1, it is characterised in that described catalyst is the haydite with manganese nitrate, titanium dioxide and copper nitrate as active component, and described haydite particle diameter is 4 ~ 6mm.
CN201610440303.4A 2016-06-20 2016-06-20 Method for deep processing and recycling oil refining wastewater Pending CN105923838A (en)

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CN201610440303.4A CN105923838A (en) 2016-06-20 2016-06-20 Method for deep processing and recycling oil refining wastewater

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CN201610440303.4A CN105923838A (en) 2016-06-20 2016-06-20 Method for deep processing and recycling oil refining wastewater

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CN105923838A true CN105923838A (en) 2016-09-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109012648A (en) * 2018-08-08 2018-12-18 武汉科技大学 A kind of method that oil plant recycling sludge utilizes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105060633A (en) * 2015-08-06 2015-11-18 鹏鹞环保股份有限公司 Petrochemical wastewater advanced treatment method
CN205295002U (en) * 2015-10-22 2016-06-08 中国石油化工股份有限公司 Oil refining advanced waste treatment device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105060633A (en) * 2015-08-06 2015-11-18 鹏鹞环保股份有限公司 Petrochemical wastewater advanced treatment method
CN205295002U (en) * 2015-10-22 2016-06-08 中国石油化工股份有限公司 Oil refining advanced waste treatment device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
水工业市场杂志社主编: "《2011水处理典型技术案例大全》", 31 March 2012, 中国环境科学出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109012648A (en) * 2018-08-08 2018-12-18 武汉科技大学 A kind of method that oil plant recycling sludge utilizes

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Application publication date: 20160907