CN106865884A - A kind of advanced treatment process of petrochemical wastewater - Google Patents
A kind of advanced treatment process of petrochemical wastewater Download PDFInfo
- Publication number
- CN106865884A CN106865884A CN201710042231.2A CN201710042231A CN106865884A CN 106865884 A CN106865884 A CN 106865884A CN 201710042231 A CN201710042231 A CN 201710042231A CN 106865884 A CN106865884 A CN 106865884A
- Authority
- CN
- China
- Prior art keywords
- water outlet
- treatment
- petrochemical wastewater
- treatment process
- carried out
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature 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
- C02F2103/365—Nature 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)
-
- 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
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Landscapes
- 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)
Abstract
The invention discloses a kind of advanced treatment process of petrochemical wastewater, including：(1) petrochemical wastewater is collected, the pretreatment of oil removing, removal of impurities is carried out；(2) water outlet of step (1) is hydrolyzed acidification；(3) water outlet of step (2) is passed through into membrane bioreactor to be processed；(4) water outlet of step (3) is carried out into ozone Oxidation Treatment；(5) water outlet of step (4) is carried out into biological activated carbon absorption degradation treatment, the water outlet after treatment is directly discharged.Novelty of the present invention by oil removal, efficient air-floating oxydrolysis acidifying MBR catalytic ozonation biological activated carbons absorption degradation this five techniques combinations, realize effective removal of Recalcitrant chemicals in petrochemical wastewater, ensure stable water outlet, meet the long-term qualified discharge requirement of whole Process for Effluent water quality.
Description
Technical field
The present invention relates to the technical field of wastewater treatment, and in particular to a kind of advanced treatment process of petrochemical wastewater.
Background technology
The water of petrochemical wastewater is big, and complicated component is to pollute one of more serious industrial wastewater at present.The waste water has
There is organic concentration and ammonia nitrogen concentration higher, and contain substantial amounts of fragrant same clan's hardly degraded organic substance and poisonous and harmful substance.
At present, the treatment technology for petrochemical wastewater includes：
1st, physico-chemical process, such as oil removal treatment, air-flotation process, adsorption treatment, membrane separation technique；
2nd, chemical method, such as flocculation treatment, advanced oxidation treatment；
3rd, biochemical process, such as Anaerobic Treatment, Aerobic Process for Treatment, or the group technology treatment that anaerobic and aerobic are effectively combined.
But with the increase of petrochemical wastewater discharge capacity, the continuous deterioration of water quality, and country carries to sewage drainage standard
Height, meanwhile, to realize cycling utilization of wastewater, requirement higher is proposed to petrochemical wastewater treatment technology, therefore, single treatment
Technique is difficult to reach the emission request of water quality.
In actual applications, mode associated with various handling process is typically used to improve the treatment to petrochemical wastewater
Effect.
Chinese patent literature such as Publication No. CN102452766A discloses a kind of petrochemical wastewater treatment process, wraps
Include：Reverse-osmosis treated is carried out to petrochemical wastewater, reverse osmosis concentrated water and counter-infiltration clear water is obtained；Height is carried out to reverse osmosis concentrated water
Level oxidation processes；Reverse osmosis concentrated water to being processed by advanced oxidation carries out Aerobic biological process.But the patented method is not to stone
Oily substance in oily wastewater from chemical industry raw water takes oil removal, air supporting etc. to pre-process, meanwhile, it is not associated with filtering, flocculation sediment, ultrafiltration
The suspension in water inlet is removed Deng front-end processing technique, and directly carries out reverse-osmosis treated, cause oily substance, suspension
Grain etc. aggravates the pollution of reverse osmosis membrane, increases operating cost.
And for example the Chinese patent literature of Publication No. CN105668915A discloses a kind of difficult degradation petrochemical wastewater
Processing method, including：1) waste water is carried out into the pretreatment such as oil removal, air supporting.2) pretreated waste water enters catalyst filling
Oxidizing tower, by Chlorine Dioxide Oxidation agent oxidative degradation in the presence of catalyst.3) waste water after aoxidizing enters at biodegradation
Science and engineering sequence.4) treatment standard water discharge discharge.But the patented method adds the subsequent techniques such as sedimentation basin not after catalytic oxidation operation,
Concentration of suspension is higher in making catalytic oxidation water outlet, and it is exceeded to easily cause water outlet concentration of suspension, causes water outlet not up to standard.
Therefore, it is still the main interior of petrochemical wastewater Processing Technology Research to develop efficient, energy-conservation, rational handling process
Hold and developing direction.
The content of the invention
The invention provides a kind of advanced treatment process of petrochemical wastewater, difficult degradation in petrochemical wastewater is realized
Effective removal of pollutant, it is ensured that stable water outlet, meets the requirement of the whole long-term qualified discharge of Process for Effluent water quality.
Concrete technical scheme is as follows：
A kind of advanced treatment process of petrochemical wastewater, comprises the following steps：
(1) petrochemical wastewater is collected, the pretreatment of oil removing, removal of impurities is carried out；
(2) water outlet of step (1) is hydrolyzed acidification；
(3) water outlet of step (2) is passed through into membrane bioreactor to be processed；
(4) water outlet of step (3) is carried out into ozone Oxidation Treatment；
(5) water outlet of step (4) is carried out into biological activated carbon absorption and biodegradable treatment, the water outlet after treatment is directly arranged
Put.
Preferably, in step (1), described pretreatment includes oil removal treatment and efficient air-floating oxidation processes.
Described oil removal treatment is carried out in oil interceptor.
Described efficient air-floating oxidation processes are divided into efficient air-floating treatment and high-activity nano heavy-oxygen-enriched water oxidation processes, its
In, efficient air-floating treatment is carried out in efficient air-floating pond.
Described high-activity nano heavy-oxygen-enriched water oxidation processes are occurred using microbubble, subsurface is trapped and lamina flow principle skill
Art, the handling process solves normal air oxygen supply oxidation reaction because dissolution velocity influences, and causes dissolution of contaminated water oxygen lack to restrict
The problem of reaction process.Reaction specific surface area can be increased simultaneously, reaction activity is reduced, reaction speed and reaction depth is improved.
Device employed in the technological process includes active-water generator, high efficiency reactor and secondary reactor, wherein,
Active-water generator and high efficiency reactor being integrally combined highly effective reaction devices.
A) active-water generator
Sewage to be processed is needed to initially enter active-water generator, after mixing, in making sewage by machinery+sonicated
It is dispensed into a large amount of micro-nano bubbles with electronegativity.These micro-nano bubbles greatly improve gas to the energy that oxygen is transmitted in sewage
Power, dissolves in over-saturation dissolved oxygen, improves reactivity, sewage is turned into high-activity nano heavy-oxygen-enriched water.
B) high efficiency reactor
The equipment is the core technology equipment of this technology, and oxidation reaction is mainly completed in the equipment.Filling is solid in equipment
Body multichannel filler, gather fine active material grainses on filler surface.Fine active particles have three aspect effects, are 1. easy to micro-
Nano bubble adheres to, micro-nano bubble explosion under the impact of current of attachment, is quickly water body oxygenation, and supplement oxidation reaction disappears
The dissolved oxygen of consumption；2. there is larger specific surface area, the contact area of abundance is provided for oxidation reaction；3. reaction activation is reduced
Can, improve reaction speed and reaction depth.This special selection and structure, make the high-activity nano for entering high efficiency reactor rich
Oxygen water is rapidly completed oxidation reaction, reaches the purpose of purification sewage.
C) secondary reactor (sewage stable can)
Secondary reactor Main Function is the dissolved oxygen in the unnecessary bubble of release, consumption sewage to reach the control of water filling
Standard.Discharging unnecessary micro-nano bubble in addition can play a part of the purification sewage such as oil removing, be conducive to sewage disposal.
Preferably, the time of the pretreatment is 10~40min
Preferably, in step (2), described hydrolysis acidification treatment is carried out in hydrolysis acidification pool, in hydrolysis acidification pool
PH is 5.0~7.0, and water temperature is 20~40 DEG C.Diving mixer is additionally provided with described hydrolysis acidification pool.
Preferably, in step (3), the membrane material that described membrane bioreactor is used is compound for polyvinyl chloride (PVC)
Film, it has the performance of high-intensity high-throughput, especially with preferable antifouling property, the pollution of energy oil resistant, and pH can be born
The cleaning of alkali lye of the value more than 12.0；
In processing procedure, expanded graphite is added in the water outlet to step (2).
Preferably, the pore volume of the expanded graphite is 0.1~10ml/g；
With the stereometer of step (2) water outlet, the dosage of expanded graphite is 200~500ppm.
It has been investigated that, the suction-operated of expanded graphite can reduce the oil content in waste water, can delay oily substance to PVC
The pollution of composite membrane silk.Further preferably, the pore volume of expanded graphite is 1~4ml/g, and dosage is 200~400ppm；Will expansion
Preferably in above range, the concentration of oil content can be less than 3mg/L to the pore volume and dosage of graphite in its water outlet.
Preferably, the membrane biological reactor process takes 7~9min of operation, stop the intermittent mode of 1~3min, can
The blocking of cake layer and gel layer to fenestra is prevented, delays the pollution of film silk.
Being passed through ozone carries out catalyzing oxidizing degrading, goes Recalcitrant chemicals matter in water removal, further improves waste water biochemical
Property.Preferably, in step (4), described ozone Oxidation Treatment is carried out under catalyst action, and described catalyst is with γ
Type-activated alumina is carrier, and with copper as active metal, by weight percentage, active metallic content is 2-10%；
In ozone Oxidation Treatment, being continuously passed through ozone by ozone generator using bottom of pond aeration mode carries out catalysis oxidation
Degraded.With the stereometer of step (3) water outlet, the intake of ozone is 5~50ppm, and the time of ozone oxidation is 0.5~1.5h.
Further preferably, the intake of ozone is 20~50ppm；Most preferably, the intake of ozone is 40ppm, and oxidization time is 1h.
Difficult degradation petrochemical wastewater after being processed through catalytic ozonation is passed through equipped with activated carbon and aerator
Charcoal pond, waste water passes through the activated carbon of successfully biofilm, realizes the absorption and degraded of water pollutant, and further reducing chemistry needs
The materials such as oxygen amount (COD), ammonia nitrogen, realize the qualified discharge for the treatment of water outlet.
Preferably, in step (5), in described biological activated carbon absorption degradation treatment, the granularity of activated carbon is 8~30
Mesh.
Preferably, described biological activated carbon absorption degradation treatment, control：
PH value is 6.0~8.0, and temperature is 20~28 DEG C, and hydraulic detention time is 2~4h.Further preferably, hydraulic retention
Time is 2.5h.
The present invention inhales using by oil removal, efficient air-floating oxidation-hydrolysis acidification-MBR- catalytic ozonations-biological activated carbon
Attached this five techniques combinations of degrading, realize the advanced treating to petrochemical wastewater.
First, the materials such as the pretreating process for being aoxidized by oil removal, air supporting, suspended impurity, oils in removal waste water.In advance
Water outlet after treatment enters hydrolysis acidification pool, and the macromolecular substances in waste water are degraded by the hydrolysis and acidification of microorganism
It is small-molecule substance, improves the ratio of the BOD/COD (B/C) of waste water, enhances the biodegradability of waste water.Therefore, subsequently connect
Then MBR techniques, this biochemical processing process can remove the small-molecule substance in waste water, but through microorganism in MBR system and
After the effect of film silk, the B/C of water outlet declines, and biodegradability is poor.By accessing ozone again, chemical catalytic oxidation is realized, then
The biodegradability of waste water is once improve, is finally processed through biological activated carbon again, can effectively removed through the biochemical processing process useless
Pollutant in water.
Therefore, the present invention is after the performance of water outlet after processing every step has made intensive studies, innovatively to propose
The combination of above-mentioned five technique, and the order of five techniques has uniqueness, five technical process are indispensable.
Compared with prior art, the present invention has advantages below：
Novelty of the present invention by oil removal, efficient air-floating oxidation-hydrolysis acidification-MBR- catalytic ozonations-bioactivity
Charcoal absorption degradation this five techniques combination, realizes effective removal of Recalcitrant chemicals in petrochemical wastewater, it is ensured that water outlet
Stability, meets the long-term qualified discharge requirement of whole Process for Effluent water quality.
Specific embodiment
Embodiment 1
The COD of pending petrochemical wastewater in the present embodimentcrIt is 8500mg/L, oil content is 400mg/L, NH3-N
Content is 50mg/L.
Pending petrochemical wastewater is passed through in oil interceptor, air-floating apparatus and oxidation unit successively carries out oil removal, gas
After floating, oxidation pre-treatment 10min, 6h, the COD COD of water outlet are precipitatedcrIt is 400mg/L, oil content is down to 15mg/L.Will
Water outlet is passed through hydrolysis acidification pool, and in 6h, 5.0, water temperature is 20 DEG C, and water outlet is entered after treatment for pH value control for hydraulic detention time control
Entering to be mounted with the membrane bioreactor of expanded graphite (pore volume is 1mL/g) and PVDF with lining form silk that dosage is 200ppm is carried out
Reaction, intermittent duty mode is operation 8min, stops 2min, the COD of processed waste watercr=200mg/L, oil content 1mg/L,
NH3- N is 10mg/L.Film water outlet into ozone dosage for 40ppm ozone oxidation pond in carry out catalyzing oxidizing degrading, ozone
Time of contact is 1h, and waste water carries out physical absorption and biodegradation into charcoal pond after oxidation, and activity is added in charcoal pond
The granularity of charcoal is 8~30 mesh, and pH value is 6.0 in charcoal pond, and temperature is 25 DEG C, and retention time of sewage is 2h.Through bioactivity
The polluters, the COD of final outflow water such as COD are further removed after charcoal treatmentcr=40mg/L, oil content is 0.5mg/L, NH3-N
Concentration is 3.5mg/L, and water outlet meets《Urban wastewater treatment firm pollutant emission standard》(GB18918-2002) the one-level mark in
Quasi- A standards, and water stabilization, process operation three months, effluent COD concentration remain at below 50mg/L, and oil content is less than
1mg/L, NH3- N concentration is less than 5mg/L.
Embodiment 2~4
The flow of advanced treatment process is identical with embodiment 1, in differing only in ozonation technology, the throwing of ozone
Dosage replaces with 20ppm, 30ppm and 50ppm respectively, then using biological carbon treatment process same as Example 1, sends out after testing
It is existing, the COD of final outflow watercrIt is followed successively by 56mg/L, 45.6mg/L and 48mg/L.
By comparative example 1~4, the technological parameter of ozonation technology can be to the biological activated carbon of next step at
The COD value for managing water outlet produces influence, and when the dosage of ozone is 40ppm, the COD value of final outflow water is minimum.Tracing it to its cause can
Can be that ozone reaches saturation state in the solution, then improve ozone dosage, ozone will not also be redissolved, unnecessary ozone will be with
Ozone water outlet enters in charcoal reactor, toxic action is produced to the microorganism on activated carbon, so as to reduce charcoal technique
Treatment effeciency.Meanwhile, unnecessary ozone flows out removal of the ozone oxidation pond without being used for Wastewater Pollutant can cause material
Waste, increase operating cost.
Embodiment 5~6
The flow of advanced treatment process is identical with embodiment 1, in differing only in ozonation technology, ozone catalytic
Oxidization time replaces with 0.5h and 1.5h respectively, then using biological carbon treatment process same as Example 1, finds after testing,
The COD of final outflow watercrIt is followed successively by 60mg/L and 41.5mg/L.
By comparative example 1,5~6, with the increase of oxidization time, ozone process water outlet and charcoal technique
COD concentration is gradually reduced in water outlet.1h is increased to when the ozone oxidation time, then continues to increase oxidization time, ozone catalytic oxygen
Change and little is changed to the clearance of COD, charcoal Process for Effluent COD change in concentration is little.With reference to integrated artistic removal effect and
Operating cost etc., 1h is the appropriate ozone oxidation time.
Embodiment 7
The COD of pending petrochemical wastewater in the present embodimentcrIt is 9500mg/L, oil content is 500mg/L, NH3-N
Content is 40mg/L.
Pending petrochemical wastewater is passed through in oil interceptor, air-floating apparatus and oxidation unit successively carries out oil removal, gas
After floating, oxidation pre-treatment 15min, 5h, the COD COD of water outlet are precipitatedcrIt is 450mg/L, oil content is down to 18mg/L.Will
Water outlet is passed through hydrolysis acidification pool, and in 5h, 6.0, water temperature is 25 DEG C, and water outlet is entered after treatment for pH value control for hydraulic detention time control
Enter to be mounted with expanded graphite (pore volume is 2mL/g) and PVDF that dosage is 300ppm to enter without the membrane bioreactor of lining form silk
Row reaction, intermittent duty mode is operation 9min, stops 1min, the COD of processed waste watercr=200mg/L, oil content 1mg/L,
NH3- N is 8mg/L.Into ozone dosage to carry out catalyzing oxidizing degrading in the ozone oxidation pond of 30ppm, ozone connects for film water outlet
The time of touching is 1.5h, and waste water carries out physical absorption and biodegradation into charcoal pond after oxidation, and activity is added in charcoal pond
The granularity of charcoal is 8~30 mesh, and pH value is 7.0 in charcoal pond, and temperature is 25 DEG C, and retention time of sewage is 2.5h.It is living through biology
Property charcoal treatment after the further removal polluter, the COD of final outflow water such as CODcr=34mg/L, oil content is 0.4mg/L, NH3-
N concentration is 2mg/L, and water outlet meets《Urban wastewater treatment firm pollutant emission standard》(GB18918-2002) primary standard in
A standards, and water stabilization, process operation three months, effluent COD concentration remain at below 50mg/L, and oil content is less than
1mg/L, NH3- N concentration is less than 5mg/L.
Embodiment 8
The COD of pending petrochemical wastewater in the present embodimentcrIt is 7500mg/L, oil content is 450mg/L, NH3-N
Content is 30mg/L.
Pending petrochemical wastewater is passed through in oil interceptor, air-floating apparatus and oxidation unit successively carries out oil removal, gas
After floating, oxidation pre-treatment 20min, 4h, the COD COD of water outlet are precipitatedcrIt is 350mg/L, oil content is down to 10mg/L.Will
Water outlet is passed through hydrolysis acidification pool, and in 4h, 7.0, water temperature is 25 DEG C, and water outlet is entered after treatment for pH value control for hydraulic detention time control
Entering to be mounted with the membrane bioreactor of expanded graphite (pore volume is 4mL/g) and PVDF with lining form silk that dosage is 400ppm is carried out
Reaction, intermittent duty mode is operation 7min, stops 3min, the COD of processed waste watercr=150mg/L, oil content 0.8mg/L,
NH3- N is 6mg/L.Into ozone dosage to carry out catalyzing oxidizing degrading in the ozone oxidation pond of 50ppm, ozone connects for film water outlet
The time of touching is 0.5h, and waste water carries out physical absorption and biodegradation into charcoal pond after oxidation, and activity is added in charcoal pond
The granularity of charcoal is 8~30 mesh, and pH value is 8.0 in charcoal pond, and temperature is 25 DEG C, and retention time of sewage is 4h.Through bioactivity
The polluters, the COD of final outflow water such as COD are further removed after charcoal treatmentcr=43mg/L, oil content is 0.3mg/L, NH3-N
Concentration is 1.5mg/L, and water outlet meets《Urban wastewater treatment firm pollutant emission standard》(GB18918-2002) the one-level mark in
Quasi- A standards, and water stabilization, process operation three months, effluent COD concentration remain at below 50mg/L, and oil content is less than
1mg/L, NH3- N concentration is less than 5mg/L.
Claims (8)
1. a kind of advanced treatment process of petrochemical wastewater, it is characterised in that comprise the following steps：
(1) petrochemical wastewater is collected, the pretreatment of oil removing, removal of impurities is carried out；
(2) water outlet of step (1) is hydrolyzed acidification；
(3) water outlet of step (2) is passed through into membrane bioreactor to be processed；
(4) water outlet of step (3) is carried out into ozone Oxidation Treatment；
(5) water outlet of step (4) is carried out into biological activated carbon absorption and biodegradable treatment, the water outlet after treatment is directly discharged.
2. the advanced treatment process of petrochemical wastewater according to claim 1, it is characterised in that described in step (1)
Pretreatment include oil removal treatment and efficient air-floating oxidation processes.
3. the advanced treatment process of petrochemical wastewater according to claim 1, it is characterised in that described in step (2)
Hydrolysis acidification treatment carried out in hydrolysis acidification pool, in hydrolysis acidification pool pH be 5.0~7.0, water temperature be 20~40 DEG C.
4. the advanced treatment process of petrochemical wastewater according to claim 1, it is characterised in that described in step (3)
The membrane material that uses of membrane bioreactor be polyvinyl chloride composite membrane；
In processing procedure, expanded graphite is added in the water outlet to step (2).
5. the advanced treatment process of petrochemical wastewater according to claim 4, it is characterised in that the expanded graphite
Pore volume is 0.1~10ml/g；
With the stereometer of step (2) water outlet, the dosage of expanded graphite is 200~500ppm.
6. the advanced treatment process of petrochemical wastewater according to claim 1, it is characterised in that described in step (4)
Ozone Oxidation Treatment carried out under catalyst action, described catalyst with γ types-activated alumina as carrier, with copper be live
Property metal, by weight percentage, active metallic content be 2~10%；
With the stereometer of step (3) water outlet, the intake of ozone is 5~50ppm, and the time of ozone oxidation is 0.5~1.5h.
7. the advanced treatment process of petrochemical wastewater according to claim 1, it is characterised in that described in step (5)
The treatment of biological activated carbon absorption degradation in, the granularity of activated carbon is 8~30 mesh.
8. the advanced treatment process of petrochemical wastewater according to claim 7, it is characterised in that described bioactivity
The treatment of charcoal absorption degradation, control：
PH value is 6.0~8.0, and temperature is 20~28 DEG C, and hydraulic detention time is 2~4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042231.2A CN106865884A (en) | 2017-01-20 | 2017-01-20 | A kind of advanced treatment process of petrochemical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042231.2A CN106865884A (en) | 2017-01-20 | 2017-01-20 | A kind of advanced treatment process of petrochemical wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106865884A true CN106865884A (en) | 2017-06-20 |
Family
ID=59158642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710042231.2A Pending CN106865884A (en) | 2017-01-20 | 2017-01-20 | A kind of advanced treatment process of petrochemical wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106865884A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582413A (en) * | 2021-08-23 | 2021-11-02 | 广东石油化工学院 | Discharge treatment device and process for petrochemical industry output wastewater |
| CN115159784A (en) * | 2022-07-26 | 2022-10-11 | 威海中远海运重工科技有限公司 | Ship domestic sewage zero-discharge treatment system and active carbon filtering device used by same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687561A (en) * | 2005-04-30 | 2005-10-26 | 江苏工业学院 | Method for deeply treating water extracted out from oil field |
| WO2011043144A1 (en) * | 2009-10-09 | 2011-04-14 | 千代田化工建設株式会社 | Method and system for treating plant wastewater |
| CN104556569A (en) * | 2014-12-23 | 2015-04-29 | 北京桑德环境工程有限公司 | Method and system for treatment of oil shale distillation sewage |
| CN104803554A (en) * | 2015-04-14 | 2015-07-29 | 焦伟祥 | Method for treating coal gasification wastewater of Lurgi gasifier |
| CN105692865A (en) * | 2014-11-27 | 2016-06-22 | 中国海洋石油总公司 | Method for processing high-acid heavy crude oil processing wastewater |
-
2017
- 2017-01-20 CN CN201710042231.2A patent/CN106865884A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687561A (en) * | 2005-04-30 | 2005-10-26 | 江苏工业学院 | Method for deeply treating water extracted out from oil field |
| WO2011043144A1 (en) * | 2009-10-09 | 2011-04-14 | 千代田化工建設株式会社 | Method and system for treating plant wastewater |
| CN105692865A (en) * | 2014-11-27 | 2016-06-22 | 中国海洋石油总公司 | Method for processing high-acid heavy crude oil processing wastewater |
| CN104556569A (en) * | 2014-12-23 | 2015-04-29 | 北京桑德环境工程有限公司 | Method and system for treatment of oil shale distillation sewage |
| CN104803554A (en) * | 2015-04-14 | 2015-07-29 | 焦伟祥 | Method for treating coal gasification wastewater of Lurgi gasifier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582413A (en) * | 2021-08-23 | 2021-11-02 | 广东石油化工学院 | Discharge treatment device and process for petrochemical industry output wastewater |
| CN115159784A (en) * | 2022-07-26 | 2022-10-11 | 威海中远海运重工科技有限公司 | Ship domestic sewage zero-discharge treatment system and active carbon filtering device used by same |
| CN115159784B (en) * | 2022-07-26 | 2023-08-15 | 威海中远海运重工科技有限公司 | Zero release processing system of boats and ships domestic sewage and with active carbon filter equipment thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gao et al. | The present status of landfill leachate treatment and its development trend from a technological point of view | |
| Yu et al. | A review of treating oily wastewater | |
| CN103288309B (en) | Coal gasification wastewater zero-emission treatment method, and application thereof | |
| CN104671391B (en) | Ozone heterogeneous catalysis oxidization treatment device and technology for hardly degradable organic wastewater | |
| CN102583884B (en) | Method for treating mixed industrial sewage in industrial park | |
| CN105481177A (en) | Low-consumption nitrification and denitrification coal chemical wastewater advanced treatment device | |
| CN206476860U (en) | A kind of oily waste water treatment reclamation set | |
| CN1886345A (en) | Installation and method for the purification of an aqueous effluent by means of oxidation and membrane filtration | |
| JP5238002B2 (en) | Organic waste water treatment apparatus and treatment method | |
| CN101693569A (en) | Device for catalyzing and oxidating ozone effectively | |
| CN103288236A (en) | Treatment method for salt-containing wastewater | |
| JP6750930B2 (en) | Wastewater purification system | |
| CN102689977A (en) | Waste water purification method and reactor adopting ozone oxidation catalysis and using compound suspended carrier | |
| CN105174644B (en) | The efficient process group technology of acrylic nitrile waste water | |
| CN102153230B (en) | Method and device for treating salt-containing wastewater produced during producing epoxy chloropropane by using glycerol as raw material | |
| CN105439370B (en) | A kind of process of combination BAF processing refinery sewage | |
| CN103951107B (en) | A kind of device and method of Treatment of Wastewater in Coking | |
| CN105502814A (en) | Ozone catalytic oxidation combined biofilter deep processing coking wastewater process and device | |
| CN204958480U (en) | Absorption - electrolysis - aeration is device of integration processing eutrophic water in coordination | |
| CN108623085B (en) | Advanced treatment method for high-nitrogen organic wastewater membrane filtration concentrate | |
| CN108929002A (en) | A kind of reverse osmosis thick water treatment method of landfill leachate | |
| CN107585970A (en) | The technique of hardly degraded organic substance advanced treating in a kind of Industrial reverse osmosis concentrated water | |
| CN106865884A (en) | A kind of advanced treatment process of petrochemical wastewater | |
| CN108341552A (en) | A kind of terpene resin production wastewater treatment process and system | |
| CN105541012A (en) | Sewage nitrogen and phosphorus removal device with internal circulating biological aerated filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |