CN109851176A - It is a kind of handle organic wastewater anaerobic digestion and three-level MBBR group technology - Google Patents
It is a kind of handle organic wastewater anaerobic digestion and three-level MBBR group technology Download PDFInfo
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- CN109851176A CN109851176A CN201910222101.6A CN201910222101A CN109851176A CN 109851176 A CN109851176 A CN 109851176A CN 201910222101 A CN201910222101 A CN 201910222101A CN 109851176 A CN109851176 A CN 109851176A
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- aerobic tank
- organic wastewater
- anaerobic digestion
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- 239000002351 wastewater Substances 0.000 title claims abstract description 50
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical group BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 230000029087 digestion Effects 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000012856 packing Methods 0.000 claims abstract description 19
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 230000003750 conditioning effect Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims abstract description 4
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 21
- 229920002472 Starch Polymers 0.000 claims description 10
- 235000019698 starch Nutrition 0.000 claims description 10
- 239000008107 starch Substances 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 16
- 239000010865 sewage Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of anaerobic digestion for handling organic wastewater and three-level MBBR group technologies, organic wastewater is entered to conditioning tank after grid pre-processes and adjusts pH value, then a part enters anaerobic tower, another part is directly entered aerobic tank after mixing with anaerobic tower water outlet, enter sedimentation basin through aerobic tank processed waste water, sludge is discharged by mud discharging mouth after precipitation, supernatant discharged wastewater met the national standard;The aerobic tank is separated into three regions by two overflow flutes, first area outer wall lower part is equipped with water inlet and connects intake pump, third region outer wall top is equipped with water outlet, after water inlet fills first area, enter second area by the first overflow flute, after water inlet fills second area, third region is entered by the second overflow flute;Biologic packing material is filled in three regions of aerobic tank;Aeration plate is distributed in the bottom of aerobic tank, and the aeration plate is located at the blower outside aerobic tank by pipeline connection.
Description
Technical field
The present invention relates to a kind of anaerobic digestion for handling organic wastewater and three-level MBBR group technologies, belong to sewage treatment neck
Domain.
Background technique
With the worsening shortages of world energy sources and the increasingly complex of contaminated wastewater load and Pollutants in Wastewater type, give up
Aquatic organism processing technique is with low investment with its, low energy consumption, produces many advantages, such as mud is few, at low cost and the weight by environmental protection sector personage
Depending on.
The biological treatment of waste water is to decompose object with organic matter, is equipped on the metabolic process of microorganism, obtains simple molecules
Inorganic matter, the organic contamination in sewage is removed with this.
Aerobic biological treatment be using aerobic microbiological (including aerobic-anaerobic microbe) under the conditions of having existing for oxygen into
Row biological metabolism stablizes it, innoxious processing method with degradation of organic substances.Microorganism utilizes organic contamination present in water
Object is that the aerobic metabolism of substrate progress releases energy step by step by a series of biochemical reaction, finally steady with the inorganic matter of low energy position
It decides, reaches innoxious requirement, so as to return to the nature environment or be further processed.
Aerobic biological treatment process is that processing technique the most universal is applied in nowadays sewage treatment, because processing cost is cheap
And it is widely noticed.But traditional aerobic biological treatment process can not directly handle middle and high concentration organic wastewater, process range
COD generally easily causes to be acidified and seriously affect treatment effect in 1000mg/L hereinafter, overruning.
With the rapid development of industry, industrial organic waste water amount sharply increases, and nowadays land used is nervous, sewage discharge buret
Control is stringent, seriously constrains the development of enterprise, how to be transformed on original Process ba- sis and reach quick processing wastewater as example
Urgent problem to be solved.General processing starch, starch sugar waste water use anaerobic process, but when load is more than setting, or water inlet wave
Dynamic big or water is uprushed, and anaerobism can not adapt to.Therefore, seek aerobic method and rapidly and efficiently handle middle and high concentration organic wastewater be
Study focal point.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of detesting for processing organic wastewater
Oxygen digestion and three-level MBBR group technology, to solve the problems, such as that existing biotechnology processing high organic loading waste water is ineffective.
In order to solve the above-mentioned technical problem, the invention discloses a kind of anaerobic digestion for handling organic wastewater and three-level MBBR
Organic wastewater is entered conditioning tank after grid pre-processes and adjusts pH value by group technology, and then a part enters anaerobic tower, separately
A part is directly entered aerobic tank after mixing with anaerobic tower water outlet, enters sedimentation basin through aerobic tank processed waste water, after precipitation
Sludge is discharged by mud discharging mouth, supernatant discharged wastewater met the national standard;
The aerobic tank is separated into three regions by two overflow flutes, and first area outer wall lower part is equipped with water inlet
And intake pump is connected, third region outer wall top is equipped with water outlet and passes through the first overflow flute after water inlet fills first area
Into second area, after water inlet fills second area, third region is entered by the second overflow flute;Three regions of aerobic tank
Inside it is filled with biologic packing material;Aeration plate is distributed in the bottom of aerobic tank, and the aeration plate is located at aerobic tank by pipeline connection
External blower.
Specifically, the overflow flute is made of the two sides baffle being fixed on aerobic tank side wall, front apron be located at into
The side of water end (W.E.), rear baffle are located at the side of water outlet;The bottom of front apron is connect with aerobic bottom of pond portion, and top is lower than aerobic tank
Sidewall Height, rear baffle bottom are separated with aerobic bottom of pond portion, form overflow ducts.
Further, the water outlet is equipped with triple valve, and wherein one end connects water inlet by pipeline, by the one of water outlet
Part by be arranged in the reflux pump of pipeline with intake mix after be again introduced into aerobic tank.
Reflux pump control reflux flow velocity is into 0.5~1 times of water flow velocity.
Preferably, the aeration plate includes two kinds of specifications that diameter is 215mm and 260mm, is sequentially distributed from inside to outside, phase
Adjacent aeration plate spacing is 30~60cm, and biologic packing material is under the action of different scales aeration plate at the rolling of certain rule in water
Movement.
Packing volume of the biologic packing material in the first area of aerobic tank is 50-60%, filling out in second area
Filling volume is 35-50%, and the packing volume in third region is 20-25%.
Overflow flute top is equipped with filter, and for preventing the loss of biologic packing material, filter aperture is 2cm.
The conditioning tank is equipped with acid-base accommodation device, so that conditioning tank pH value maintains 7.5~8.
Preferably, slave conditioning tank and the anaerobic tower outflow into aerobic tank and mixed influent COD 1500~
Between 3000mg/L.
The organic wastewater is production starch or starch sugar waste water, and COD is 3000~6000mg/L, aerobic tank three-level
MBBR technique HRT (hydraulic detention time) is 4~8h.
Preferably, by the aeration quantity of air-blower control aeration plate so that the DO value of three-level MBBR technique first area be 3~
4mg/L, the DO value of second area are 2~3mg/L, and the DO value in third region is 1~2mg/L.
The utility model has the advantages that
1, present invention process improves aerobic tank, processing capacity substantial increase, and general aerobe technique is at it
Manage waste water COD in 1000mg/L hereinafter, and HRT be generally more than 16h.And aerobic tank three-level MBBR process waste water of the present invention
COD is remarkably reinforced up to 1500~3000mg/L, tolerance, and HRT foreshortens to 4h or so, and processing capacity promotes 5~10 times.
2, present invention process can directly handle conditioning tank high-COD waste water, separately build anaerobic tower without enterprise, and throwing can be greatly reduced
Cost is provided, and surrounding enviroment can be improved, because Anaerobic Digestion waste water can generate the stenches toxic gas such as hydrogen sulfide.
3, present invention process improves traditional aerobic biological treatment process, and aerobic tank only need to be divided into three regions,
DO value successively reduces, and without other capital construction cost, processing capacity rises 5~10 times, and cost decline is obvious, and treatment effect
Good, process efficient is stablized;In the experiment for handling certain enterprise's starch, starch sugar waste water, entire stable technical process, effluent quality
It is up to standard.
Detailed description of the invention
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, of the invention is above-mentioned
And/or otherwise advantage will become apparent.
Fig. 1 is anaerobic digestion and the three-level MBBR group technology flow chart of present invention processing organic wastewater;
Fig. 2 is aerobic tank overall structure diagram of the present invention;
Fig. 3 preferably oxygen tank bottom aeration plate distribution map;
Fig. 4 is biologic packing material rollover states schematic diagram in water.
Specific embodiment
According to following embodiments, the present invention may be better understood.
Structure depicted in Figure of description, ratio, size etc., only to cooperate the revealed content of specification, with
Understand for those skilled in the art and read, be not intended to limit the invention enforceable qualifications, therefore does not have technically
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size can be generated not influencing the present invention
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Meanwhile
Cited such as "upper", "lower", "front", "rear", " centre " term in this specification are merely convenient to being illustrated for narration, and
It is non-that to limit the scope of the invention, relativeness is altered or modified, under the content of no substantial changes in technology, when
Also it is considered as the enforceable scope of the present invention.
As shown in Figure 1, to handle the sewage treatment process schematic diagram of starch sugar waste water in the present embodiment.By organic waste
Water enters conditioning tank after grid pre-processes and adjusts pH value, and then a part enters anaerobic tower, and another part goes out with anaerobic tower
It is directly entered aerobic tank after water mixing, enters sedimentation basin through aerobic tank processed waste water, sludge is arranged by mud discharging mouth after precipitation
Out, supernatant discharged wastewater met the national standard.
As shown in Fig. 2, aerobic tank 1 is separated into three regions by two overflow flutes, 11 outer wall lower part of first area is set
There is water inlet and connect intake pump 2,13 outer wall top of third region is equipped with water outlet, after water inlet fills first area 11, leads to
It crosses the first overflow flute 41 and enters second area 12, after water inlet fills second area 12, entered by the second overflow flute 42
Third region 13;Biologic packing material 3 is filled in 1 three regions of aerobic tank;Aeration plate 5, the exposure is distributed in 1 bottom of aerobic tank
Gas disk 5 is located at the blower 6 outside aerobic tank 1 by pipeline connection.
Wherein, the overflow flute is made of the two sides baffle being fixed on 1 side wall of aerobic tank, front apron 43 be located at into
The side of water end (W.E.), rear baffle 44 are located at the side of water outlet;The bottom of front apron 43 is connect with 1 bottom of aerobic tank, and top is lower than
1 Sidewall Height of aerobic tank, 44 bottom of rear baffle are separated with 1 bottom of aerobic tank, form overflow ducts.
It is equipped with triple valve in 1 water outlet of aerobic tank, wherein one end connects water inlet by pipeline, by a part of water outlet
Reflux pump 7 by the way that pipeline is arranged in is again introduced into aerobic tank 1 after mixing with water inlet, the control reflux flow velocity of reflux pump 7 is into water
0.5~1 times of 2 water inlet flow velocity of pump.
Packing volume of the biologic packing material 3 in the first area of aerobic tank 1 11 is 50%, the filling in second area 12
Volume is 35%, and the packing volume in third region 11 is 25%.4 top of overflow flute is equipped with filter, for preventing biology
The loss of filler, filter aperture are 2cm.
As shown in figure 3, the aeration plate 5 includes two kinds of specifications that diameter is 215mm and 260mm, successively divide from inside to outside
Cloth, adjacent aeration plate spacing are 30~60cm, and biologic packing material 3 is under the action of different scales aeration plate 5 at such as Fig. 4 institute in water
The rule shown carries out tumbling motion.
The conditioning tank is equipped with acid-base accommodation device, so that conditioning tank pH value maintains 7.5~8.Conditioning tank is direct
Water inlet flow velocity into aerobic tank determines that flow velocity is it is ensured that aerobic tank influent COD by conditioning tank COD and anaerobic tower water outlet COD
In 1500~3000mg/L.
Handle certain enterprise's starch sugar waste water using aerobic tank three-level MBBR biological treatment device, the waste water COD 3000~
Between 6000mg/L, ammonia nitrogen be 50~100mg/L, total phosphorus in 10~20mg/L or so, waste water after anaerobic tower is handled still
There is the COD of 1000mg/L or more.Three-level MBBR technique HRT early period is set as 8h, the DO value in the first, second and third region be respectively 4mg,
3mg,2mg.By the stable operation of certain time, HRT is reduced to 4h after 8d, every day output promotes one times, first and second,
The DO value in three regions is reduced to 3mg, 2mg, 1mg respectively, reduces processing cost.Its effluent quality is shown in Table 1, COD and is less than 500mg/L,
Reach the enterprise and is discharged into pipe network requirement.
Table 1
The present invention provides it is a kind of handle organic wastewater anaerobic digestion and three-level MBBR group technology thinking and method,
There are many method and the approach for implementing the technical solution, the above is only a preferred embodiment of the present invention, it is noted that
For those skilled in the art, without departing from the principle of the present invention, several change can also be made
Into and retouching, these modifications and embellishments should also be considered as the scope of protection of the present invention.Each component part being not known in the present embodiment
The available prior art is realized.
Claims (10)
1. a kind of anaerobic digestion for handling organic wastewater and three-level MBBR group technology, which is characterized in that pass through organic wastewater
Enter conditioning tank after grid pretreatment and adjust pH value, then a part enters anaerobic tower, and another part is mixed with anaerobic tower water outlet
After be directly entered aerobic tank, enter sedimentation basin through aerobic tank processed waste water, after precipitation sludge pass through mud discharging mouth be discharged, supernatant
Discharged wastewater met the national standard;
The aerobic tank (1) is separated into three regions (11,12,13), first area by two overflow flutes (41,42)
(11) outer wall lower part is equipped with water inlet and connects intake pump (2), and third region (13) outer wall top is equipped with water outlet, when water inlet is infused
After full first area (11), second area (12) are entered by the first overflow flute (41), when water inlet fills second area (12)
Afterwards, third region (13) are entered by the second overflow flute (42);Biologic packing material is filled in (1) three region of aerobic tank
(3);Aerobic tank (1) bottom is distributed with aeration plate (5), and the aeration plate (5) is located at aerobic tank (1) outside by pipeline connection
Blower (6).
2. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 1, which is characterized in that
The overflow flute is made of the two sides baffle being fixed on aerobic tank (1) side wall, and front apron (43) is located at the one of water inlet end
Side, rear baffle (44) are located at the side of water outlet;The bottom of front apron (43) is connect with aerobic tank (1) bottom, and top is lower than
Oxygen pond (1) Sidewall Height, rear baffle (44) bottom are separated with aerobic tank (1) bottom, form overflow ducts.
3. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 2, which is characterized in that
The water outlet is equipped with triple valve, and wherein one end connects water inlet by pipeline, by a part of water outlet by being arranged in pipe
The reflux pump (7) in road is again introduced into aerobic tank (1) after mixing with water inlet.
4. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 3, which is characterized in that
The reflux pump (7) control reflux flow velocity is into 0.5~1 times of water flow velocity.
5. the anaerobic digestion of processing organic wastewater according to claim 2 or 3 and three-level MBBR group technology, feature exist
In the aeration plate (5) includes two kinds of specifications that diameter is 215mm and 260mm, is sequentially distributed from inside to outside, adjacent aeration plate
Spacing is 30~60cm.
6. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 5, which is characterized in that
Packing volume of the biologic packing material (3) in the first area (11) of aerobic tank (1) is 50-60%, in second area (12)
Interior packing volume is 35-50%, and the packing volume in third region (13) is 20-25%.
7. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 5, which is characterized in that
Overflow flute top is equipped with filter, and for preventing the loss of biologic packing material, filter aperture is 2cm.
8. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 1, which is characterized in that
The conditioning tank is equipped with acid-base accommodation device, so that conditioning tank pH value maintains 7.5~8.
9. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater according to claim 1, which is characterized in that
The outflow of slave conditioning tank and anaerobic tower and mixed influent COD into aerobic tank is between 1500~3000mg/L.
10. anaerobic digestion and the three-level MBBR group technology of processing organic wastewater described in claim 1, which is characterized in that institute
The organic wastewater stated is production starch or starch sugar waste water, and COD is 3000~6000mg/L.
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CN201910222101.6A CN109851176B (en) | 2019-03-22 | 2019-03-22 | Anaerobic digestion and three-stage MBBR combined process for treating organic wastewater |
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CN201910222101.6A CN109851176B (en) | 2019-03-22 | 2019-03-22 | Anaerobic digestion and three-stage MBBR combined process for treating organic wastewater |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113441499A (en) * | 2021-06-17 | 2021-09-28 | 宁波韩美金属包装有限公司 | Recovery processing system of barrel-shaped container |
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JP2001070988A (en) * | 1999-09-03 | 2001-03-21 | Mitsubishi Heavy Ind Ltd | Treatment of nitrogen-containing waste water |
KR20050081251A (en) * | 2004-02-13 | 2005-08-18 | 대림산업 주식회사 | A high-strength organic wastewater treatment system composed of biofilm fermentator and anaerobic-anoxic-aerobic reactor |
CN202046977U (en) * | 2011-05-16 | 2011-11-23 | 徐州工程学院 | Anaerobic-aerobic integrated reactor |
CN106430584A (en) * | 2016-10-20 | 2017-02-22 | 王海燕 | Baffled bioreactor |
CN108218106A (en) * | 2017-12-15 | 2018-06-29 | 华南理工大学 | A kind of high nitrogenous, low ratio of carbon to ammonium dyeing waste water biological denitrification system and method |
-
2019
- 2019-03-22 CN CN201910222101.6A patent/CN109851176B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001070988A (en) * | 1999-09-03 | 2001-03-21 | Mitsubishi Heavy Ind Ltd | Treatment of nitrogen-containing waste water |
KR20050081251A (en) * | 2004-02-13 | 2005-08-18 | 대림산업 주식회사 | A high-strength organic wastewater treatment system composed of biofilm fermentator and anaerobic-anoxic-aerobic reactor |
CN202046977U (en) * | 2011-05-16 | 2011-11-23 | 徐州工程学院 | Anaerobic-aerobic integrated reactor |
CN106430584A (en) * | 2016-10-20 | 2017-02-22 | 王海燕 | Baffled bioreactor |
CN108218106A (en) * | 2017-12-15 | 2018-06-29 | 华南理工大学 | A kind of high nitrogenous, low ratio of carbon to ammonium dyeing waste water biological denitrification system and method |
Cited By (1)
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CN113441499A (en) * | 2021-06-17 | 2021-09-28 | 宁波韩美金属包装有限公司 | Recovery processing system of barrel-shaped container |
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