CN108408888A - A kind of wastewater treatment equipment and its application in handling organic wastewater - Google Patents
A kind of wastewater treatment equipment and its application in handling organic wastewater Download PDFInfo
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- CN108408888A CN108408888A CN201810191048.3A CN201810191048A CN108408888A CN 108408888 A CN108408888 A CN 108408888A CN 201810191048 A CN201810191048 A CN 201810191048A CN 108408888 A CN108408888 A CN 108408888A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 60
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000010992 reflux Methods 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 239000010802 sludge Substances 0.000 claims abstract description 21
- 230000004044 response Effects 0.000 claims abstract description 16
- 230000004087 circulation Effects 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000010815 organic waste Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000008187 granular material Substances 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 21
- 238000011068 loading method Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000002906 microbiologic effect Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- 240000003183 Manihot esculenta Species 0.000 description 1
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C02F3/2813—Anaerobic digestion processes using anaerobic contact processes
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2209/12—Volatile Fatty Acids (VFAs)
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
The present invention discloses a kind of wastewater treatment equipment and its application in handling organic wastewater, including reactor and three phase separator, and the reactor is divided into lower part main reaction region and top secondary response area, and three phase separator is located in secondary response area；Cylindrical type baffle up and down is equipped in main reaction region, cylindrical type baffle upper end is located inside three phase separator；Reactor bottom is equipped with water inlet pipe, and water inlet pipe is equipped with intake pump；The top secondary response area of reactor is connected to by return duct with the water inlet pipe of reactor bottom, and return duct is equipped with reflux pump.By the way that cylindrical type baffle is arranged in inside reactor, the upper end is located at the inside of three phase separator so that the floc sludge in reactor can decline after entering three phase separator along outer wall, be more likely formed granule sludge, reduce and start the time, enhance treatment effect.
Description
Technical field
A kind of application the present invention relates to wastewater treatment equipment and its in handling organic wastewater belongs to sewage disposal neck
Domain.
Background technology
With the increasingly complex of the worsening shortages and contaminated wastewater load and Pollutants in Wastewater type of world energy sources, give up
Water Anaerobic Microbiological Treatment Technology is with good investment with its, low energy consumption, recoverable biogas energy, load are high, production mud is few, impact resistance is negative
Many advantages, such as lotus and paid attention to again by environmental protection sector personage.
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.Common all kinds of Anaerobic Treatment processes, are otherwise known as and detest within the scope of nature
Oxygen digests (fermentation), is generally understood as in anaerobic system under the collective effect of anaerobic type and amphimicrobian type microorganism, will
Organic matter is decomposed into CH4、CO2With the process of water.French biology Louis Mouras have invented " self-cleaning the eighties in 19th century
Makeup is set " to treated sewage sludge, open the history of human use's anaerobic bio-treated wastewater and waste materials.Thereafter people are gradual
Carry out and handles the excess sludge generated in activated sludge process (such as various anaerobic digesters) and city using anaerobic processes
The process of sewage (such as two-storey settling tank, septic tank).In the 1960s, anaerobic type sludge bed reactor (UASB) and detesting
The reactors such as oxygen type contact membranes expanded bed reactor (AAFEB) gradually appear.This few class reactor is had in common that can be with
Solid phase dwell phase is detached with the hydraulic retention stage, solid phase dwell phase even can reach thousands of hours.This characteristic
So that the Anaerobic Treatment dwell phase to high-concentration sewage foreshortens to a few hours or a couple of days from a couple of days before to dozens of days.Current
In the efficient anaerobic system for handling developed, UASB techniques obtain very extensive success on all kinds of productivity devices
Using.
Anaerobic type microbiological treatment system is relative to traditional active sludge processing system, and the load that equipment can carry is more
Height, floor space is less, and operating cost and administration fee are lower, generates that sludge is lower, and the requirement for energy and nutrition is also more
It is low, and valuable by-product can be obtained.For the soils such as wetland type processing system, although the two operating cost all compares
Cheap, but anaerobic type microbiological treatment system floor space is less, the advantages of load higher, is more prominent.It is possible thereby to judge,
Anaerobic type microbiological treatment system is a kind of wastewater purification technology of low cost, while can also recycle the energy.The whole world
In range, most developing countries are all facing serious environmental problem, and energy relative shortage, fund wretched insufficiency,
Urgently effective, simple and low-cost water purification technology, therefore, anaerobe treatment technology are very suitable for China's national situation,
There is very high researching value.
However, there are still many limitations for Anaerobic Methods in Treating at this stage.Anaerobe is to rings such as pH, temperature and toxicity
Border condition is extremely sensitive；The initial start-up phase of anaerobic reactor is very long；Processing procedure will produce the problems such as foul smell gas and restrict
The development of anaerobic technology.Especially the initial start-up phase is very long, seriously constrains the application of anaerobic technology in practice.
Invention content
Goal of the invention：The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide cycle in one kind
The wastewater treatment equipment of formula starts that the period is long, and treatment effect is bad etc. asks to solve prior art processing high organic loading waste water
Topic.
In order to solve the above-mentioned technical problem, the invention discloses a kind of wastewater treatment equipments, including reactor and three-phase separate
From device, the reactor is divided into lower part main reaction region and top secondary response area, and three phase separator is located in secondary response area；Main reaction
Cylindrical type baffle up and down is equipped in area, cylindrical type baffle upper end is located inside three phase separator；
Reactor bottom is equipped with water inlet pipe, and water inlet pipe is equipped with intake pump；The top secondary response area of reactor passes through reflux
Pipe is connected to the water inlet pipe of reactor bottom, and return duct is equipped with reflux pump.
Wherein, the internal diameter of the cylindrical type baffle is slightly less than reactor inside diameter, is the 0.7 of the main reaction region internal diameter of reactor
~0.9 times, preferably 0.8 times.
Cylindrical type baffle upper end and the vertical spacing and level interval of three phase separator are cylindrical type baffle and react
0.5~2 times of device difference in internal diameters, preferably cylindrical type baffle upper end are equal with the vertical spacing and level interval of three phase separator, and
It is equal with the difference in internal diameters of cylindrical type baffle with reactor.
The top secondary response area side wall of the reactor is equipped with refluxing opening, and refluxing opening is connected to return duct；The refluxing opening
Height is more than the height of three phase separator, and outer circulation is controlled by the reflux pump adjusted on return duct；The top of the reactor
Secondary response area side wall is additionally provided with overflow port, and the height of overflow port is more than the height of refluxing opening, handles qualified water from overflow port stream
Go out.
Water-bath insulation jacket is enclosed with outside the main reaction region of the reactor, to ensure inside reactor reaction temperature；
The lower part of main reaction region is equipped with water inlet sample tap, and middle part is equipped with middle part sample tap, and top is equipped with top sample tap, for relatively more anti-
The COD of device upper, middle and lower is answered to change.
The present invention also provides application of the above-mentioned wastewater treatment equipment in handling organic wastewater.
Wherein, the organic wastewater is BOD5/ COD is more than 0.4 organic wastewater, and COD is not higher than
20000mg/L, including but not limited to alcohol waste water, acetic acid waste water, citric acid wastewater, Fruit quality waste water, beer waste water, methanol
Waste water and Vitamin C wastewater etc..
By anaerobic technology development for many years, technology is accordingly ripe, the different anaerobism of many processing capacities occurs
Reactor, but the initial start-up time is long, is still the key for restricting anaerobic technology development.The initial start-up time is long, mainly detests
Long and active particle sludge is not easy caused by being formed oxygen methanogen under field conditions (factors) from generation to generation.Many researchers are done for it
A large amount of effort, EGSB reactors are compared to UASB reactors, more two outer circulations so that granule sludge is more easy to shape
At.But many can be increased in terms of corresponding energy consumption again, operating cost increases so that the application of EGSB has certain
Limitation.
For problems, corresponding adjustment is made to traditional EGSB structure of reactor in the present invention, reduces wherein one
Outer circulation.Increase a cylindrical type baffle in inside reactor, is reasonably designed by baffle so that inside reactor is formed
Orderly interior cycle, before activation phase orderly flow direction can accelerate the formation of granule sludge, start the granule sludge of later stage formation
In the processing capacity of the orderly movement meeting enhancing reactor of reactor.Meanwhile when the later stage granule sludge fortune orderly in reactor
After dynamic, outer circulation can stop so that energy consumption substantially reduces, identical as UASB reactors, and processing capacity is reacted better than EGSB
Device.
Wherein, the outer circulation structure of the reactor, main function are to allow reaction zone liquid to mix with water inlet to enter back into
Reactor, reactor start-up back-flow velocity early period are 10~40 times of outle water rate, and outer circulation major function is by upper reaction zone
The processing water of low COD, low pH are mixed with water inlet, reduce influent COD and pH, improve the stability of reactor start-up early period.Meanwhile
Organic relatively low in reactor start-up COD early period, the aerogenesis of reactor itself is less, is not enough to be formed in inside reactor stable
Interior cycle, and more quickly reflux can improve the rate of climb of water inlet, form stable interior cycle, promote granule sludge
It is formed, this is particularly significant early period in reactor start-up.When reactor COD volumetric loadings reach 8KgCOD/ (m3When more than d),
The reflux rate of outer circulation can be reduced to 0~10 times of water intake velocity.Because anti-when the volumetric loading of reactor is higher
Answer and will produce a large amount of gas in device, drive the rising of flow, to three phase separator after glide along wall, formed in stable and followed
Ring, the function of outer circulation at this time are mainly to reduce the COD intake to close outer circulation after reactor stable operation, are relied on
The interior cycle for the stabilization that reactor is stablized, it is ensured that the stability and processing capacity of reactor.
The wastewater treatment equipment specifically comprises the following steps in the application process of processing organic wastewater：
Step 1：Activated sludge is mixed with pending waste water, is added in reactor, reflux pump is opened and carries out outer follow
Ring reacts 2~3 days at 35~40 DEG C；
Step 2：Nitrogen source phosphorus source is added in pending waste water adjusts COD:N:P mass concentration ratios and pH value, using outer
Portion adds the mode of water that the COD initially intake is adjusted to 3000~4000mg/L, opens intake pump, and adjust water inlet
The flow rate of pump and reflux pump so that the waste water COD of reactor bottom is less than 1000mg/L；
Step 3：COD removal rates, VFA and the pH of water outlet are detected, every time when the COD removal rate of water outlet reaches
80%, volatile fatty acid is less than 800mg/L, and when 2~3 hydraulic detention times of maintenance, keeps water inlet flow rate pump constant, will
The COD of water inlet promotes 25~100% every time, steps up and (does not have into the COD of water to the original numerical value of waste water
The waste water being diluted)；
Step 4：When reactor volume load reaches 4KgCOD/ (m3When more than d), when 1~3 hydraulic retention
Between the flow velocity of reflux pump reduced by 10~100%, the COD removal rate fluctuation being discharged within 6h after adjusting every time is little
It in 5%, is then adjusted next time, until reflux flow rate pump is reduced to 0；If in the adjustment process of midway, the flow velocity of reflux pump reduces
Occur the COD removal rate being discharged within 6h fluctuation afterwards and be more than 5%, then recalls to the original flow velocity of reflux pump and keep constant；
Step 5：After COD of intaking reaches waste water original numerical value, every time when the COD removal of water outlet
Rate reaches 85% or more, and when stablizing 1~3 hydraulic detention time, water inlet flow rate pump is improved 16.7%~75%, to shorten
Hydraulic detention time, until the volumetric loading of reactor reaches 20~35KgCOD/ (m3And stable operation d).
In step 1, the organic wastewater is BOD5/ COD is more than 0.4 organic wastewater, and COD is not higher than
20000mg/L；The mixing quality ratio of the activated sludge and pending waste water is 1:1~3；The flow velocity of the reflux pump is 0.8
~1L/h.
In step 2, the COD:N:P ratios are 200~300:5:1, preferably 300:5:1, pH value is 6.8~7.2, excellent
Select 7.
In step 2, the flow velocity of the reflux pump is into 10~40 times of water flow rate pump.
Advantageous effect：
1, apparatus of the present invention are when inside reactor adds cylindrical type baffle, shortens the startup of anaerobic digestion process early period
Between, the increased cost of tradition anaerobic reactor compared is very low, it is compared with UASB and EGSB reactors, useless in processing
COD removal rates higher, reactor are more stable during water；
2, after the enhancing of apparatus of the present invention post-processing ability, the interior cycle of inside reactor, which is won, mainly to become producing by itself
Raw gas is as power, and energy consumption conference reduces, and processing capacity is more preferably, entire anti-compared to traditional anaerobic reactor
Device more efficient stable, reactor is answered hardly to occur being acidified the significantly decline with COD removal rates suddenly；
3, after more days of apparatus of the present invention continuous feed, whole process stable system, reactor inlet COD loading, which is stablized, to be promoted
To 20Kg/ (m3D), 90% or more COD removal rates.
Description of the drawings
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 the overall structure diagram of the device.
Specific implementation mode
According to following embodiments, the present invention may be better understood.
Embodiment 1
As shown in Figure 1, it includes reactor 1 and three phase separator 2 that the wastewater treatment equipment, which includes the device, reactor 1 divides
At lower part main reaction region 11 and top secondary response area 12, three phase separator 2 is located in secondary response area 12 to be equipped in main reaction region 11
Cylindrical type baffle 3 up and down, 3 upper end of cylindrical type baffle are located inside three phase separator 2, cylindrical type baffle 3 it is interior
Diameter is 0.7 times of 11 internal diameter of main reaction region of reactor 1, the vertical spacing 15 and level interval of the upper end and three phase separator 2
14 be baffle and 2 times of reactor inside diameter poor 13.
1 bottom of reactor is equipped with water inlet pipe 4, and water inlet pipe 4 is equipped with intake pump 41；The top secondary response area 12 of reactor 1
Side wall is equipped with refluxing opening 121, is connected to the water inlet pipe 4 of 1 bottom of reactor by return duct 5, and return duct 5 is equipped with reflux pump
51, influent waste water is controlled by intake pump 41, and outer circulation is made of return duct 5 and reflux pump 51, is controlled by reflux pump 51, is followed outside
The waste water flow direction that ring control process is crossed is mixed with water inlet from top to bottom, enters main reaction region from bottom immediately below reactor after mixing
11, from the bottom up by main reaction region 11, after reaching three phase separator 2, the gas of generation is discharged from 2 top of three phase separator,
Water and sludge glide along 2 inner wall of three phase separator, and a part rests on secondary response area 12, and a part is along cylindrical type baffle 3
Natural subsidence forms interior cycle.Reactor top is equipped with overflow port, and the waste water handled is flowed out from overflow port.Water-bath thermal insulation clamp
Set 9 is to ensure inside reactor reaction temperature.
3 internal diameter of cylindrical type baffle of the device is slightly less than reactor inside diameter, is 0.7 times of reactor inside diameter, baffle upper end
Inside three phase separator, the vertically and horizontally spacing of baffle upper end and three phase separator is baffle and reactor inside diameter difference
2 times.
12 side wall of top secondary response area of the reactor 1 is additionally provided with overflow port 122, and the height of overflow port 122 is more than back
The height of head piece 121, the waste water handled are flowed out from overflow port.
It is enclosed with water-bath insulation jacket 6 outside the main reaction region 11 of the reactor 1, ensures inside reactor reaction temperature
Degree；The lower part of main reaction region 11 is equipped with water inlet sample tap 71, and middle part is equipped with middle part sample tap 72, and top is equipped with top sample tap
73。
Embodiment 2
Difference from Example 1 is that 3 internal diameter of cylindrical type baffle of wastewater treatment equipment is the main reaction of reactor 1
0.9 times of 11 internal diameter of area, the vertical spacing 15 and level interval 14 of 3 upper end of cylindrical type baffle and three phase separator 2 be baffle with
0.5 times of reactor inside diameter poor 13.
Embodiment 3
Difference from Example 1 is that 3 internal diameter of cylindrical type baffle of wastewater treatment equipment is the main reaction of reactor 1
0.8 times of 11 internal diameter of area, the vertical spacing 15 and level interval 14 of 3 upper end of cylindrical type baffle and three phase separator 2 be baffle with
Reactor inside diameter poor 13 is identical.
Embodiment 4
Cassava alcohol waste water is handled with the wastewater treatment equipment of embodiment 1, alcohol waste water BOD5/ COD is 0.42,
Activated sludge is added in main reaction region and presses 1 with alcohol waste water:After 3 ratio mixing, TS 7%, in 35 DEG C of reactions 3 of reaction temperature
It；Nitrogen source phosphorus source is added in pending waste water adjusts COD:N:P ratios are 200:5:1, initial influent COD is outside reactor
Portion is by adding the method dilute alcohol waste water of water that its COD is made to be 3000mg/L, continous way water inlet, and outer circulation reflux pump 51 flows back speed
Degree is 40 times of 41 water intake velocity of intake pump, and HRT is 2 days, and the waste water COD of detection reactor bottom water inlet sample tap 71 is less than
1000mg/L.Start early period, is less than 6.8 when overflow port 122 is discharged pH, by the way that NaHCO is added in water inlet3Powder adjusts water inlet
PH makes it be discharged pH and stablizes 7.0 or more.It is less than 800mg/L when COD removal rates are more than 80%, VFA every time, and stablizes two
HRT just promotes influent COD, keeps 41 flow velocity of intake pump constant, 25~100% is promoted on the basis of original COD, continuous operation
10 days, volumetric loading reached 4KgCOD/ (m3D), the flow velocity of reflux pump 51 is reduced by 19 every 2~3 hydraulic detention times
~43%, so that the COD removal rate being discharged within 6h after adjusting fluctuation is less than 5%；Continuous operation 25 days, influent COD is steady
Surely it is promoted to 20000mg/L, volumetric loading reaches 10KgCOD/ (m3D), outer circulation back-flow velocity is reduced to the 10 of water intake velocity
Times.After 25 days, influent COD organic loading is promoted by shortening HRT, every time when the COD removal rate of water outlet reaches
85% or more, and when stablizing 2 hydraulic detention times, 41 flow velocity of intake pump is improved 33.3~50%.At the 35th day, volume was negative
Lotus reaches 20KgCOD/ (m3D), water outlet COD removal rates stablize 90% or more, and stablize continuous service in some months below,
Effect is shown in Table 1.
Table 1
Embodiment 5
Acetic acid waste water is handled with the wastewater treatment equipment of embodiment 2, acetic acid waste water BOD5/ COD is 0.63, in master
Reaction zone is added activated sludge and presses 1 with acetic acid waste water:After 1 ratio mixing, TS 7% reacts 2 days for 40 DEG C in reaction temperature；
Nitrogen source phosphorus source is added in pending waste water adjusts COD:N:P ratios are 250:5:1, initial influent COD is by diluting waste water
It is 3000mg/L to make its COD, and continous way water inlet, 51 back-flow velocity of outer circulation reflux pump is 25 times of 41 water intake velocity of intake pump,
HRT is 2 days, and the waste water COD of detection reactor bottom water inlet sample tap 71 is less than 1000mg/L.Start early period, when overflow port 122
It is discharged pH and is less than 6.8, by the way that NaHCO is added in water inlet3Powder adjusts inlet flow-patterm, so that it is discharged pH and stablizes 7.0 or more.Often
It is secondary to be less than 800mg/L when COD removal rates are more than 80%, VFA, and stablize two HRT, influent COD is just promoted, intake pump 41 is kept
Flow velocity is constant, 60~100% is promoted on the basis of original COD, continuous operation 10 days, influent COD stabilization is promoted to 10000mg/
L, volumetric loading reach 5KgCOD/ (m3D), the flow velocity of reflux pump 51 is reduced by 39 every 1~3 hydraulic detention time~
47.5%, so that the COD removal rate being discharged within 6h after adjusting fluctuation is less than 5%；After 10th day, by shorten HRT come
Volumetric loading is promoted, the COD removal rate for working as water outlet every time reaches 85% or more, and stablizes 1 hydraulic detention time
When, 41 flow velocity of intake pump is improved 17.6~60%.At 16 days, water inlet volumetric loading reached 8KgCOD/ (m3D), outer circulation
Back-flow velocity is reduced to 5 times of water intake velocity.At the 32nd day, volumetric loading reached 20KgCOD/ (m3·d).At the 45th day, volume
Load reaches 30KgCOD/ (m3D), water outlet COD removal rates stablize 93% or more, and stablize lasting fortune in some months below
Row, effect are shown in Table 2.
Table 2
Embodiment 6
Acetic acid waste water is handled with the wastewater treatment equipment of embodiment 3, acetic acid waste water BOD5/ COD is 0.63, in master
Reaction zone is added activated sludge and presses 3 with acetic acid waste water:After 7 ratio mixing, TS 7% reacts 2 days for 40 DEG C in reaction temperature；
Nitrogen source phosphorus source is added in pending waste water adjusts COD:N:P ratios are 300:5:1, initial influent COD is by diluting waste water
It is 3000mg/L to make its COD, and continous way water inlet, 51 back-flow velocity of outer circulation reflux pump is 10 times of 41 water intake velocity of intake pump,
HRT is 2 days, and the waste water COD of detection reactor bottom water inlet sample tap 71 is less than 1000mg/L.Start early period, when overflow port 122
It is discharged pH and is less than 6.8, by the way that NaHCO is added in water inlet3Powder adjusts inlet flow-patterm, so that it is discharged pH and stablizes 7.0 or more.Often
It is secondary to be less than 800mg/L when COD removal rates are more than 80%, VFA, and stablize two HRT, influent COD is just promoted, intake pump 41 is kept
Flow velocity is constant, and 60~100% are promoted on the basis of original COD, and continuous operation 7 days, influent COD stabilization is promoted to 10000mg/L,
Volumetric loading reaches 5KgCOD/ (m3D), the flow velocity of reflux pump 51 is reduced by 50 every 1~3 hydraulic detention time~
100%, so that the COD removal rate being discharged within 6h after adjusting fluctuation is less than 5%.After 7th day, carried by shortening HRT
Influent COD organic loading is risen, the COD removal rate for working as water outlet every time reaches 85% or more, and stablizes 2 hydraulic retentions
When the time, 41 flow velocity of intake pump is improved 16.7~75%.At 12 days, volumetric loading reached 8KgCOD/ (m3D), outer circulation
It closes, stops reflux.At the 28th day, volumetric loading reached 20KgCOD/ (m3·d).At the 42nd day, volumetric loading reached
35KgCOD/(m3D), water outlet COD removal rates stablize 96% or more, and stablize continuous service in some months below, and effect is shown in
Table 3.
Table 3
The thinking and method of a kind of application the present invention provides wastewater treatment equipment and its in handling organic wastewater, tool
Body realizes that there are many method of the technical solution and approach, the above is only a preferred embodiment of the present invention, it is noted that right
For those skilled in the art, without departing from the principle of the present invention, several improvement can also be made
And retouching, these improvements and modifications also should be regarded as protection scope of the present invention.Each component part being not known in the present embodiment is equal
It can be realized with the prior art.
Claims (11)
1. a kind of wastewater treatment equipment, including reactor (1) and three phase separator (2), which is characterized in that the reactor (1)
It is divided into lower part main reaction region (11) and top secondary response area (12), three phase separator (2) is located in secondary response area (12)；Main reaction
Cylindrical type baffle (3) up and down is equipped in area (11), cylindrical type baffle (3) upper end is located in three phase separator (2)
Portion；
Reactor (1) bottom is equipped with water inlet pipe (4), and water inlet pipe (4) is equipped with intake pump (41)；The top time of reactor (1) is anti-
Area (12) is answered to be connected to the water inlet pipe (4) of reactor (1) bottom by return duct (5), return duct (5) is equipped with reflux pump
(51)。
2. a kind of wastewater treatment equipment according to claim 1, which is characterized in that the internal diameter of the cylindrical type baffle (3)
It is 0.7~0.9 times of main reaction region (11) internal diameter of reactor (1).
3. a kind of wastewater treatment equipment according to claim 2, which is characterized in that cylindrical type baffle (3) upper end with
The vertical spacing and level interval of three phase separator are 0.5~2 times of cylindrical type baffle and reactor inside diameter difference.
4. a kind of wastewater treatment equipment according to claim 3, which is characterized in that the top time of the reactor (1) is anti-
Area (12) side wall is answered to be equipped with refluxing opening (121), refluxing opening (121) is connected to return duct (5)；Refluxing opening (121) height is big
Height in three phase separator (2)；Top secondary response area (12) side wall of the reactor (1) is additionally provided with overflow port (122), overflows
The height of head piece (122) is more than the height of refluxing opening (121).
5. a kind of wastewater treatment equipment according to claim 4, which is characterized in that the main reaction region of the reactor (1)
(11) external to be enclosed with water-bath insulation jacket (6)；The lower part of main reaction region (11) is equipped with water inlet sample tap (71), during middle part is equipped with
Portion's sample tap (72), top are equipped with top sample tap (73).
6. application of the wastewater treatment equipment in handling organic wastewater described in any one of Claims 1 to 5.
7. application according to claim 6, which is characterized in that the organic wastewater is BOD5/ COD is more than 0.4 organic waste
Water, COD are not higher than 20000mg/L.
8. application according to claim 6, which is characterized in that include the following steps：
Step 1：Activated sludge is mixed with pending organic wastewater, is added in reactor (1), open reflux pump (51) into
Row outer circulation is reacted 2~3 days at 35~40 DEG C；
Step 2：Nitrogen source phosphorus source is added in pending waste water adjusts COD:N:P mass concentration ratios and pH value will initially intake
COD be adjusted to 3000~4000mg/L, open intake pump (41), and adjust intake pump (41) and reflux pump (51)
Flow rate so that the chemical oxygen demand of waste water of reactor (1) bottom be less than 1000mg/L；
Step 3：COD removal rate, Volatile fatty acid contents and the pH of water outlet are detected, every time when the chemistry of water outlet needs
Oxygen amount removal rate reaches 80%, and volatile fatty acid is less than 800mg/L, and when maintaining 2~3 hydraulic detention times, keep into
Water pump (41) flow velocity is constant, and the COD of water inlet is promoted 25~100%, steps up COD into water to useless
The original numerical value of water；
Step 4：When reactor volume load reaches 4KgCOD/ (m3When more than d), it will be returned every 1~3 hydraulic detention time
The flow velocity of stream pump (51) reduces by 10~100%, and the COD removal rate fluctuation being discharged within 6h after adjusting every time is not more than
5%, then it is adjusted next time, until reflux pump (51) flow velocity is reduced to 0, if the COD removal rate wave being discharged within 6h
It is dynamic to be more than 5%, then it recalls to original flow velocity and keeps constant；
Step 5：After COD of intaking reaches waste water original numerical value, every time when the COD removal rate of water outlet reaches
To 85% or more, and when stablizing 1~3 hydraulic detention time, intake pump (41) flow velocity is improved 16.7%~75%, shortens water
The power residence time, until reactor volume load reaches 20~35KgCOD/ (m3·d)。
9. application according to claim 8, which is characterized in that in step 1, the activated sludge and pending waste water
Mixing quality ratio is 1:1~3；The flow velocity of the reflux pump (51) is 0.8~1L/h.
10. application according to claim 8, which is characterized in that in step 2, the COD:N:P ratios are 200~300:
5:1, pH value is 6.8~7.2.
11. application according to claim 8, which is characterized in that in step 2, the flow velocity of the reflux pump (51) is into water
Pump 10~40 times of (41) flow velocity.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108928918A (en) * | 2018-08-27 | 2018-12-04 | 中国环境科学研究院 | The method that interior circulation is folded to upflow type anaerobic biological treatment device and its handles waste water |
| CN109665617A (en) * | 2019-02-15 | 2019-04-23 | 南京工业大学 | A kind of anaerobic digestion device and its application in processing organic wastewater |
| CN110451635A (en) * | 2019-06-24 | 2019-11-15 | 重庆大学科技企业（集团）有限责任公司 | A kind of biological treatment system and method for high organic matter industrial wastewater with high salt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108928918A (en) * | 2018-08-27 | 2018-12-04 | 中国环境科学研究院 | The method that interior circulation is folded to upflow type anaerobic biological treatment device and its handles waste water |
| CN109665617A (en) * | 2019-02-15 | 2019-04-23 | 南京工业大学 | A kind of anaerobic digestion device and its application in processing organic wastewater |
| CN109665617B (en) * | 2019-02-15 | 2024-01-19 | 南京工业大学 | Anaerobic digestion device and application thereof in treatment of organic wastewater |
| CN110451635A (en) * | 2019-06-24 | 2019-11-15 | 重庆大学科技企业（集团）有限责任公司 | A kind of biological treatment system and method for high organic matter industrial wastewater with high salt |
| CN110451635B (en) * | 2019-06-24 | 2022-01-18 | 重庆大学科技企业（集团）有限责任公司 | Biological treatment system and method for high-salt high-organic matter industrial wastewater |
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