CN106915863A - A kind of oil refining sewerage biological treatment device - Google Patents

A kind of oil refining sewerage biological treatment device Download PDF

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Publication number
CN106915863A
CN106915863A CN201510983379.7A CN201510983379A CN106915863A CN 106915863 A CN106915863 A CN 106915863A CN 201510983379 A CN201510983379 A CN 201510983379A CN 106915863 A CN106915863 A CN 106915863A
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CN
China
Prior art keywords
unit
linpor
oil refining
treatment device
biological treatment
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Pending
Application number
CN201510983379.7A
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Chinese (zh)
Inventor
吕倩
吕慧
杨海燕
王伟
王星明
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Publication date
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Priority to CN201510983379.7A priority Critical patent/CN106915863A/en
Publication of CN106915863A publication Critical patent/CN106915863A/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
    • C02F2001/007Processes including a sedimentation step
    • 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)
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/08Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/10Packings; Fillings; Grids
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1278Provisions for mixing or aeration of the mixed liquor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2846Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors

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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)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention provides a kind of oil refining sewerage biological treatment device, hydrolysis acidification unit, aeration unit, primary deposition unit, LINPOR units and final precipitation unit, the hydrolysis acidification unit, the aeration unit, the primary deposition unit, the LINPOR units and the final precipitation unit are sequentially connected, Sludge Bed is provided with the hydrolysis acidification unit, sewage is retained and adsorbed after entering rising from the bottom of the hydrolysis acidification unit by the Sludge Bed, the particulate matter and colloidal substance that the Sludge Bed will be flowed into sewage;Pure oxygen is passed through in the aeration unit.

Description

A kind of oil refining sewerage biological treatment device
Technical field
The present invention relates to a kind of oil refining sewerage biological treatment device, more particularly, to the life of Petrochemical Enterprises externally discharged waste water Thing denitrogenation and decarburization.
Background technology
During produce reality, the characteristic for oil refining sewerage takes corresponding appropriate treatment technology, to go Except the pollutant in processing sewage, so as to meet the purpose of qualified discharge or reusing sewage.Traditional Petrochemical Enterprises Sewage Biological Treatment use biologic treating technique based on " activated sludge process ".With crude oil Become weight and refine oil continuing to develop for deep process technology, the blowdown flow rate and pollutant concentration of each process units and pollution Thing composition is all significantly increased, and with increasingly strict environmental requirement, " activated sludge process " is hard to carry on.Pass System activated sludge process exist take up an area larger, surplus sludge volume it is many, to the biochemical oxygen demand (BOD) (BOD) in sewage With COD (COD) treatment degradation effect it is undesirable, energy consumption is higher, investment is big, removal efficiency of nitrogen and phosphorus Relatively low and poor to the change adaptation of waste water quality water problem.
The content of the invention
The technical problems to be solved by the invention are directed to the drawbacks described above of prior art, there is provided one kind oil refining Biological sewage treatment device, the device can realize that Biodegradability of Wastewater is higher, COD clearances are high, dirt Water can qualified discharge purpose.
To achieve these goals, the invention provides a kind of oil refining sewerage biological treatment device, including:Water Solution acidifying unit, aeration unit, primary deposition unit, LINPOR units and final precipitation unit, it is described Hydrolysis acidification unit, the aeration unit, the primary deposition unit, LINPOR units and described Final precipitation unit is sequentially connected, and Sludge Bed is provided with the hydrolysis acidification unit, and sewage is sour from the hydrolysis The bottom of change unit will flow into the particulate matter in sewage after entering rising by the Sludge Bed, the Sludge Bed Matter and colloidal substance retention and absorption;Pure oxygen is passed through in the aeration unit.
Above-mentioned oil refining sewerage biological treatment device, the aeration unit is a pure oxygen aeration pond, using pure oxygen The pure oxygen aeration pond is passed through instead of air, the pure oxygen aeration pond is three sections of closed ponds of series connection.
Above-mentioned oil refining sewerage biological treatment device, the LINPOR units are a LINPOR oxidation ponds, The LINPOR oxidation ponds bottom of pond portion is provided with an aerator.
Above-mentioned oil refining sewerage biological treatment device, porous polyurethane is additionally provided with the LINPOR oxidation ponds Filler.
Above-mentioned oil refining sewerage biological treatment device, the porous polyurethane filler is spongy block, long 1. 5cm, width 1.5cm, 1.2cm high.
Above-mentioned oil refining sewerage biological treatment device, the porous polyurethane filler is located in a filter.
Above-mentioned oil refining sewerage biological treatment device, the hydrolysis acidification unit is a hydrolysis acidification reaction tank, The Waste water treatment amount of the hydrolysis acidification reaction tank is 300m3/ h, the pond body chi of the hydrolysis acidification pool Very little is 31.5m × 10m × 5.5m, and effective liquid level of the hydrolysis acidification reaction tank is 5.1m, the hydrolysis The dischargeable capacity in acidification reaction pond is 1530m3
Above-mentioned oil refining sewerage biological treatment device, the size in each closed pond is 15.6m × 15.6 M × 6m, effective liquid level in the closed pond is 4.4 meters, three effective total measurement (volume)s 3 in the closed pond 210m3
Above-mentioned oil refining sewerage biological treatment device, the Waste water treatment amount of the LINPOR oxidation ponds is 600m3/ h, the size of the LINPOR oxidation ponds is 19.2m × 15.6m × 7m, the LINPOR Effective liquid level of oxidation pond is 6m, and the dischargeable capacity of the LINPOR oxidation ponds is 1800m3, it is passed through institute The air demand for stating LINPOR oxidation ponds is 2500Nm3/ h, the porous poly- ammonia in the LINPOR oxidation ponds Fat filler cumulative volume is 360m3
Above-mentioned oil refining sewerage biological treatment device, the LINPOR oxidation ponds are provided with extruding demoulding pump, institute State after porous polyurethane filler is extruded through the extruding demoulding pump to improve the renewal speed of biomembrane.
Beneficial functional of the invention is:
Apparatus of the present invention are used to process oil refining sewerage, can improve Biodegradability of Wastewater energy, after processing device Substantially, water outlet can reach for the reduction of water outlet COD value, denitrification effect《Integrated wastewater discharge standard》GB897 8-96 secondary standards.
Brief description of the drawings
Fig. 1 is the oil refining sewerage biological treatment device schematic flow sheet of invention.
Specific embodiment
Structural principle of the invention and operation principle are described in detail below in conjunction with the accompanying drawings:
Can realize that Biodegradability of Wastewater is higher, COD clearances are high it is an object of the invention to provide one kind, Sewage can qualified discharge oil refining sewerage biological treatment device.
The oil refining sewerage biological treatment device, the device includes the hydrolysis acidification unit, the aeration list that are sequentially connected Unit, primary deposition unit, LINPOR units and final precipitation unit.
Hydrolysis acidification unit in the oil refining sewerage biological treatment device is a hydrolysis acidification reaction tank, hydrolysis Acidizing Process Technique is to be subject to a kind of improved sewage disinfection treatment technology on the basis of anaerobic technology, of the invention The treatment water of hydrolysis acidification pool is 300m3/ h, the size of hydrolysis acidification pool is 31.5m × 10m × 5.5m, Effective liquid level of hydrolysis acidification pool is 5.1m, and the dischargeable capacity of hydrolysis acidification pool is 1530m3, sewage exists The hydrolysis acidification pool residence time is 5.1h.Due to hydrolysis acidification reaction tank, to be belonging to upflow anaerobic sludge blanket process anti- The technology category of device is answered, multiple injection well downhole flow regulators are provided with hydrolysis acidification reaction tank, a diameter of 1m of injection well downhole flow regulator matches somebody with somebody Hydrophone quantity is 15, and water distribution uses pressure type water dispensing apparatus.Sewage by hydrolysis acidification reaction tank bottom Into by Sludge Bed, the particulate matter and colloidal substance in water inlet are retained rapidly and inhaled by a large amount of microorganisms Attached, this is a fast reaction for physical process, general only to need to complete within several seconds to tens seconds, is cut The material for leaving is adsorbed on the surface of Sludge Bed, because these materials are attracted to Sludge Bed surface, so Residence time in device is greater than hydraulic detention time, and be decomposed metabolism at leisure.Largely hydrolyzing micro- life By insoluble hydrolysis of organic matter into solable matter in the presence of thing, while under the synergy of acid-producing bacteria By macromolecular substances, it is difficult to degradable chemical and is converted into the small-molecule substance that is readily biodegradable, releases again It is put into liquid, enters in postorder handling process with sewage.Because microorganism is while degradation of organic substances, Increase breeding with organic matter as what substrate carried out itself, can make the sludge quantity of hydrolysis unit increases, thus will This amount of activated sludge enters sludge condensation and dewatering unit.In this course, dissolubility BOD, CO Although the clearance of D is anecdotally very low, hydrolysis acid is increased because particulate organic matter occurs hydrolysis Change the concentration of dissolved organic matter in cell arrangement, therefore, dissolubility BOD, COD clearance is actually It is very high.Hydrolysis acidification method of the invention be it is a kind of between method aerobic and between Anaerobic Treatment method, it is and straight Anaerobic Treatment is connect to compare, it is short with hydraulic detention time, the advantages of floor space is small;With direct Aerobic Process for Treatment Compare, have the advantages that Biodegradability of Wastewater energy, strong shock resistance can be improved.Hydrolysis acidification reaction tank collection , in one, organic matter is in hydrolysis acidification reaction tank for precipitation, absorption, bioflocculation, biological degradation function Removal includes physics, chemical and biochemical combined reaction process, i.e., using hydrolysis and acid-producing microorganisms, By the solid in sewage, macromolecular and to be difficult biodegradable organic matter degradation be readily biodegradable small point Sub- organic matter so that sewage is obtained with less energy consumption and under the shorter residence time in follow-up aerobic unit Treatment.
Aeration unit in the oil refining sewerage biological treatment device, aeration unit is a pure oxygen aeration pond, and this is pure Oxygen aeration tank is three sections of closed ponds of series connection, and pure oxygen aeration is the activity being aerated instead of air using pure oxygen Sludge, because the partial pressure of oxygen in pure oxygen aeration is big, the rate of transform is high, makes that high concentration can be kept in aeration tank Dissolved oxygen and high sludge concentration, therefore pure oxygen aeration pool volume is small, and floor space is small.And pure oxygen aeration The oxygen for being used is air separation unit accessory substance, if do not utilized, is then processed by emptying, wastes the energy, and Energy consumption and operating cost for can then reduce purified water herein.Meanwhile, from pure oxygen aeration petrochemical industry at home From the point of view of the practical situations of enterprise, its treatment effeciency is high, impact resistance is good, it is stable the characteristics of Confirmed.The treatment water in pure oxygen aeration pond is 600m3/ h, each closed pond pond body size is 15.6m × 15.6m × 6m, effective liquid level in each closed pond is 4.4m, three total effective appearances in closed pond Product is 3210m3, sewage is 6h in the aeration unit residence time, and the activated sludge of unit mass is in unit It is 0.3kgBOD/ [kgMLVSSd] for volumetric loading is that the amount of interior removed pollutant is sludge loading 1.8kgBOD/m3.d, concentration of suspension is 6000mg/L, and sludge is 5.3h in the aeration unit residence time, Oxygen demand is 1.45kgO2/ kgBOD, sludge output is the dry mud/kgBOD of 0.4kg, return sludge ratio:100%.
LINPOR units in the oil refining sewerage biological treatment device, LINPOR units are a LINPOR Oxidation pond, LINPOR oxidation ponds use a kind of technology similar with contact oxidation technology, and the technique is Based on the principle of original sewage-treatment plant aerator active microorganism, by special porous polyurethane filler Insert in aeration tank, porous polyurethane filler is stopped by the filter of particular design in pond.LINPOR oxidation ponds Bottom is provided with aerator, and air is provided for it by air blower, activated sludge on porous polyurethane filler surface and Growth inside, and grown in the form of suspension flco, the activated sludge of fixed growth and suspension growth is always dense Degree is about the twice of traditional activated sludge process sludge concentration, and organic loading also increases about 34%, so that complete Into biological denitrificaion and carbonization treatment.The LINPOR oxidation ponds are using the life being attached on porous polyurethane filler Thing film processes pollutant.The porous polyurethane filler is spongy block, and size is 1.5cm × 1.5cm × 1.2cm, with very big specific surface area, make can be kept in LINPOR oxidation ponds compared with Biomass high and abundant microbial population, are particularly conducive to breed the life of generation time microorganism long It is long, such as remove the nitrifier of ammonia nitrogen and the flora of decomposition hardly degraded organic substance.LINPOR oxidation ponds also have It is not easily blocked, the characteristics of without backwashing, and is provided with extruding demoulding pump, porous polyurethane filler is through squeezing After the extruding of pressure-off membrane pump, the renewal of biomembrane is accelerated, and improves bioactivity.LINPOR oxidation technologies exist Be there is no in Domestic Petrochemical Enterprises and apply achievement, but answered in municipal wastewater and external coked waste water at home With operational effect is good, to ammonia nitrogen removal efficiency high.The treatment water of LINPOR oxidation ponds:600m3/ h, The pond body size of LINPOR oxidation ponds is 19.2m × 15.6m × 7m, effective liquid level of LINPOR oxidation ponds It is 6m, the dischargeable capacity of LINPOR oxidation ponds is 1800m3, dwell time of sewage is 3h (more than Asked), porous polyurethane packing volume is 360m3, volumetric loading is 0.48kgNH4-N/m3.d, filler Residence time is 3h, and air demand is 2500Nm3/h。
As shown in Figure 1, technological process is as described below for the oil refining sewerage biological treatment device that the present invention is provided:
Oil refining sewerage is entered by the bottom of pond of hydrolysis acidification pool and rises through Sludge Bed, and water distribution is matched somebody with somebody using pressure type Water installations, particulate matter and colloidal substance in oil refining sewerage are trapped when by Sludge Bed, adsorbed, divided Solution metabolism, insoluble hydrolysis of organic matter macromolecular substances, is difficult to biodegradable thing into solable matter Matter is converted into the small-molecule substance being readily biodegradable.In this course, dissolubility BOD, COD Clearance is very low, but the biodegradability of sewage is improved, and is that follow-up Aerobic Process for Treatment operation creates advantage. Sewage after being processed through hydrolysis acidification pool flow to pure oxygen aeration pond, and the sewage after being processed through pure oxygen aeration pond flow to Preliminary sedimentation tank carries out mud-water separation, and preliminary sedimentation tank water outlet gravity flow enters LINPOR oxidation ponds, in pure oxygen Although the biochemical organic matter of the overwhelming majority has been removed in aeration tank, there is hardly degraded organic substance in sewage With ammonia nitrogen need removal, particularly in view of saline sewage biodegradability it is poor the characteristics of, LINPOR oxidation Pond is a kind of advanced reliable handling process.The water outlet of LINPOR oxidation ponds enters final precipitation unit, through prison Survey qualified rear outer row.Its sewage disposal process of oil refining sewerage biological treatment device that the present invention is provided is " sewage Water inlet → hydrolysis acidification pool → pure oxygen aeration pond → preliminary sedimentation tank → LINPOR oxidation ponds → final precipitation Unit → outer row ", water outlet reaches《Integrated wastewater discharge standard》Outer row after GB8978-96 secondary standards.
Certainly, the present invention can also have other various embodiments, in the feelings without departing substantially from spirit of the invention and its essence Under condition, those of ordinary skill in the art work as can make various corresponding changes and deformation according to the present invention, but These corresponding changes and deformation should all belong to the protection domain of appended claims of the invention.

Claims (10)

1. a kind of oil refining sewerage biological treatment device, it is characterised in that including:Hydrolysis acidification unit, exposure Gas unit, primary deposition unit, LINPOR units and final precipitation unit, the hydrolysis acidification unit, The aeration unit, the primary deposition unit, the LINPOR units and the final precipitation unit according to Secondary connection, is provided with Sludge Bed in the hydrolysis acidification unit, sewage enters from the bottom of the hydrolysis acidification unit Enter by the Sludge Bed after rising, the particulate matter and colloidal substance that the Sludge Bed will be flowed into sewage cut Stay and adsorb;Pure oxygen is passed through in the aeration unit.
2. oil refining sewerage biological treatment device as claimed in claim 1, it is characterised in that the aeration Unit is a pure oxygen aeration pond, and the pure oxygen aeration pond, the pure oxygen aeration are passed through instead of air using pure oxygen Pond is three sections of closed ponds of series connection.
3. oil refining sewerage biological treatment device as claimed in claim 1, it is characterised in that described LINPOR units are a LINPOR oxidation ponds, and the bottom of pond portion of the LINPOR oxidation ponds is provided with an aeration Device.
4. oil refining sewerage biological treatment device as claimed in claim 3, it is characterised in that described Porous polyurethane filler is additionally provided with LINPOR oxidation ponds.
5. oil refining sewerage biological treatment device as claimed in claim 4, it is characterised in that described porous Polyurethane filler is spongy block, 1.5cm long, width 1.5cm, 1.2cm high.
6. oil refining sewerage biological treatment device as claimed in claim 5, it is characterised in that described porous Polyurethane filler is located in a filter.
7. oil refining sewerage biological treatment device as claimed in claim 1, it is characterised in that the hydrolysis Acidifying unit is a hydrolysis acidification reaction tank, and the Waste water treatment amount of the hydrolysis acidification reaction tank is 300m3/ h, the pond body size of the hydrolysis acidification pool is 31.5m × 10m × 5.5m, the hydrolysis acidification reaction Effective liquid level in pond is 5.1m, and the dischargeable capacity of the hydrolysis acidification reaction tank is 1530m3
8. oil refining sewerage biological treatment device as claimed in claim 2, it is characterised in that each described The size in closed pond is 15.6m × 15.6m × 6m, and effective liquid level in the closed pond is 4.4 meters, three Effective total measurement (volume) 3210m in the individual closed pond3
9. oil refining sewerage biological treatment device as claimed in claim 4, it is characterised in that described The Waste water treatment amount of LINPOR oxidation ponds is 600m3/ h, the size of the LINPOR oxidation ponds is 19.2m × 15.6m × 7m, effective liquid level of the LINPOR oxidation ponds is 6m, the LINPOR oxygen The dischargeable capacity for changing pond is 1800m3, the air demand for being passed through the LINPOR oxidation ponds is 2500Nm3/ h, Porous polyurethane filler cumulative volume in the LINPOR oxidation ponds is 360m3
10. oil refining sewerage biological treatment device as claimed in claim 4, it is characterised in that described LINPOR oxidation ponds are provided with extruding demoulding pump, and the porous polyurethane filler is extruded through the extruding demoulding pump Afterwards improving the renewal speed of biomembrane.
CN201510983379.7A 2015-12-24 2015-12-24 A kind of oil refining sewerage biological treatment device Pending CN106915863A (en)

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CN201510983379.7A CN106915863A (en) 2015-12-24 2015-12-24 A kind of oil refining sewerage biological treatment device

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Application Number Priority Date Filing Date Title
CN201510983379.7A CN106915863A (en) 2015-12-24 2015-12-24 A kind of oil refining sewerage biological treatment device

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090272687A1 (en) * 2006-10-30 2009-11-05 Chiang Ming-Hui Method of Deep Sewage Treatment without Sludge Discharge and Device Therefor
CN103508618A (en) * 2012-06-27 2014-01-15 中国石油化工股份有限公司 Method for treating high-concentration ammonia nitrogen wastewater
CN103951061A (en) * 2014-04-30 2014-07-30 中国石油天然气集团公司 In-situ upgraded treatment method for realizing zero discharge of refinery and chemical wastewater and biological stuffing used in in-situ upgraded treatment method
CN205420083U (en) * 2015-12-24 2016-08-03 中国石油天然气股份有限公司 Oil refining sewage biological processing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090272687A1 (en) * 2006-10-30 2009-11-05 Chiang Ming-Hui Method of Deep Sewage Treatment without Sludge Discharge and Device Therefor
CN103508618A (en) * 2012-06-27 2014-01-15 中国石油化工股份有限公司 Method for treating high-concentration ammonia nitrogen wastewater
CN103951061A (en) * 2014-04-30 2014-07-30 中国石油天然气集团公司 In-situ upgraded treatment method for realizing zero discharge of refinery and chemical wastewater and biological stuffing used in in-situ upgraded treatment method
CN205420083U (en) * 2015-12-24 2016-08-03 中国石油天然气股份有限公司 Oil refining sewage biological processing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吕炳南等, 哈尔滨:哈尔滨工业大学出版社 *

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