CN110240275A - A kind of milk product waste processing system and processing method - Google Patents
A kind of milk product waste processing system and processing method Download PDFInfo
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- CN110240275A CN110240275A CN201910630421.5A CN201910630421A CN110240275A CN 110240275 A CN110240275 A CN 110240275A CN 201910630421 A CN201910630421 A CN 201910630421A CN 110240275 A CN110240275 A CN 110240275A
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- uasb reactor
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- membrane cisterna
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- milk product
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- 238000012545 processing Methods 0.000 title claims abstract description 46
- 235000013336 milk Nutrition 0.000 title claims abstract description 45
- 239000008267 milk Substances 0.000 title claims abstract description 45
- 210000004080 milk Anatomy 0.000 title claims abstract description 45
- 239000002699 waste material Substances 0.000 title claims abstract description 45
- 238000003672 processing method Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims abstract description 85
- 239000012528 membrane Substances 0.000 claims abstract description 65
- 239000000945 filler Substances 0.000 claims abstract description 24
- 230000003750 conditioning effect Effects 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000005273 aeration Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 238000005191 phase separation Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 239000004589 rubber sealant Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 239000002351 wastewater Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 239000010802 sludge Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 235000018102 proteins Nutrition 0.000 description 8
- 102000004169 proteins and genes Human genes 0.000 description 8
- 108090000623 proteins and genes Proteins 0.000 description 8
- 235000013365 dairy product Nutrition 0.000 description 5
- 239000012510 hollow fiber Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000006396 nitration reaction Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000017854 proteolysis Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 102000004407 Lactalbumin Human genes 0.000 description 1
- 108090000942 Lactalbumin Proteins 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 241000589651 Zoogloea Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000037323 metabolic rate Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
- C02F2103/327—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters from processes relating to the production of dairy products
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of milk product waste processing systems, including raw water conditioning tank, UASB reactor, MBR biology membrane cisterna and discharge bay, it is equipped with suspended biological filler net in UASB reactor, suspended biological filler net includes cylindrical screen frame and the suspended biological filler that is filled in cylindrical screen frame；Suspended biological filler is just equipped with liftable three phase separator on the net；Partition is equipped in MBR biology membrane cisterna, MBR biology membrane cisterna is separated into aerobic area and aerobic zone by partition, and aerobic area is equipped with biological membrane assembly in UASB reactor, aerobic zone, and the lower section of biological membrane assembly is equipped with aeration tube；The top of MBR biology membrane cisterna is equipped with third outlet pipe, and the water outlet of third outlet pipe is located in discharge bay.MBR reactor is arranged in the present invention after UASB reactor, improves operational efficiency and operation stability, has very strong capacity of resisting impact load, suitable for the milk product waste processing that pollutant concentration is big and variation is big.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of milk product waste processing system and processing method.
Background technique
Pollutant in the comprehensive waste water of dairy enterprises is mainly lactoprotein (such as casein, lactalbumin), butterfat
Fat, lactose and inorganic salts etc., wherein most substance have preferable biochemical, B/C ratio usually 0.5 or more, this
A kind of waste water is suitable for being handled using biological method.
Mainly activated sludge process is used to handle Dairy Wastewater both at home and abroad at present, as using at UASB reactor
Reason, although UASB reactor for treatment milk product waste, which is used alone, has many advantages, such as that volumetric loading is high and COD removal rate is high,
Treatment effect to nitrogen is simultaneously bad because containing a large amount of protein in Dairy Wastewater, total nitrogen content between 60-120mg/L, and
Under anaerobic, these protein are difficult to degradable at ammonia nitrogen in UASB reactor, and partially protein can be anti-from UASB
The treatment process for being lost in device and entering next step is answered, such as Aerobic Process for Treatment process, is imitated in the degradation of Aerobic Process for Treatment process internal protein
Fruit is far away from anaerobic condition, to keep aerobic process undesirable to the treatment effect of total nitrogen；And secondary anaerobic processing is set again and is set
It is standby, it although can be thorough by protein degradation, will increase facility, make complex treatment process.So at individual UASB
It is undesirable to manage milk product waste effect, and individually Anaerobic Treatment high concentration milk product waste there are techniques unstable, shock resistance
The problems such as load-bearing capacity is poor.
The group technology of UASB+MBR achieves very on processing garbage seeping water, beer waste water and high concentration excrement and urine water
More achievements, but rarely have the case this technique being applied in dairy products processing, therefore, the present invention attempts UASB+MBR to combine work
Skill is applied in the processing of milk product waste, and is improved by the structure to UASB and MBR, to overcome exclusive use
Under the premise of defect existing for UASB reactor for treatment milk product waste, milk product waste treatment effeciency is further increased, is used
Water is up to standard.
Summary of the invention
The object of the present invention is to provide a kind of milk product waste processing system and processing method, solve single in the prior art
Total nitrogen treatment effect is undesirable when solely using UASB reactor for treatment milk product waste, and then the problem of influence standard water discharge.
The first purpose of the invention is to provide a kind of milk product waste processing system, including raw water conditioning tank, UASB are anti-
Device, MBR biology membrane cisterna and discharge bay are answered, the upper end of the raw water conditioning tank is equipped with sewage water inlet pipe, and bottom end is equipped with first and goes out
Water pipe, the raw water conditioning tank is interior to be equipped with raw water mixing pump；
The bottom end of the UASB reactor is connected to by the first outlet pipe with the raw water conditioning tank, first outlet pipe
It is equipped with the first elevator pump, suspended biological filler net is equipped in the UASB reactor, the suspended biological filler net includes circle
Cylindricality screen frame and the suspended biological filler being filled in the cylindrical screen frame；
Liftable three phase separator is equipped in the UASB reactor at the top of the suspended biological filler net,
The escape pipe of the three phase separator passes through the top of the UASB reactor, and is communicated with biogas collection device；The UASB
The second outlet pipe is equipped on the side wall of reactor at the top of the three phase separator；
The MBR biology membrane cisterna is connected to by second outlet pipe with the UASB reactor, the MBR biology membrane cisterna
It is interior to be equipped with partition, and the height of the partition is the 2/3 of the MBR biology membrane cisterna height, the partition is by the MBR biomembrane
Pond is separated into aerobic area and aerobic zone, and the aerobic area is equipped with biomembrane group in the UASB reactor, the aerobic zone
Part, the lower section of the biological membrane assembly are equipped with aeration tube, and the inlet end of the aeration tube passes through the side of the MBR biology membrane cisterna
Wall, and connect with the air pump being located at outside the MBR biology membrane cisterna；The top of the MBR biology membrane cisterna is equipped with third outlet pipe, institute
The water outlet for stating third outlet pipe is located in the discharge bay, and the third outlet pipe is equipped with the second elevator pump.
Preferably, the top of the UASB reactor is equipped with the top cover being detachably connected, and offers and wears on the top cover
Mouthful, it is described wear mouthful at be connected with the casing passed through for the three phase separator escape pipe activity, and the outer diameter of described sleeve pipe with
The internal diameter of the three phase separator escape pipe matches；Multiple tapped limit holes are circumferentially offered in described sleeve pipe, often
The stop screw to match can be worn in a limit hole, by described sleeve pipe and the three-phase separate that wherein wears
It is fixed from device escape pipe.
Preferably, the outside of UASB reactor upper end is equipped with external screw thread, and the top cover inside is interior equipped with matching
Screw thread, the UASB reactor are spirally connected with the top cover by external screw thread and internal screw thread；Rubber is additionally provided on described sleeve pipe inner wall
Sealant.
Preferably, the biological membrane assembly includes two the first collector pipes that are vertical and being oppositely arranged, and two described first
Hollow fiber film assembly is horizontally connected between collector pipe, the bottom end closure of two first collector pipes, top is connected to jointly
There is the second lateral collector pipe, second collector pipe is connected to the third outlet pipe.
Preferably, one end that first outlet pipe is located in the UASB reactor is also communicated with water distributor.
It preferably, further include temperature control processing system, the temperature control processing system includes that heated at constant temperature outer barrel and constant temperature add
Hot water barrel, the heated at constant temperature outer barrel are set at the reaction zone of the UASB reactor outer lower end, the heated at constant temperature outer barrel
Upper end be equipped with constant-temperature effluent pipe, lower end is equipped with constant temperature water inlet pipe, and the constant temperature water inlet pipe is another with the constant-temperature effluent pipe
End is connected to the heated at constant temperature bucket；
Bottom end is equipped with heating tube in the heated at constant temperature bucket, and the side of heated at constant temperature bucket bottom end passes through band valve
The pipeline of door is connected to the discharge bay.
Preferably, the raw water mixing pump, first elevator pump, the air pump, the second elevator pump are electrically connected with PLC
Controller.
A second object of the present invention is to provide the processing methods of above-mentioned milk product waste processing system, which is characterized in that
The following steps are included:
Step 1, the milk product waste stored in raw water conditioning tank is promoted by the first elevator pump into UASB reactor,
Controlling temperature in the reactor reaction zone UASB is 30-35 DEG C, and HRT 18h, COD volumetric loading is 6.25kgCOD/m3D, instead
Finish after having answered and obtains the water outlet of UASB reactor；
Step 2, UASB reactor water outlet enter MBR biology membrane cisterna, control MBR biology membrane cisterna in aerobic area concentration≤
0.5mg/L, hydraulic loading 0.49m3/(m2.h), DO concentration is 3-5mg/L, hydraulic loading in aerobic zone in MBR biology membrane cisterna
For 0.064m3/(m2.h), COD volumetric loading is 2.29kgCOD/m3D, HRT 5h finish after having reacted and obtain MBR biomembrane
Pond water outlet；
Step 3, the water outlet of MBR biology membrane cisterna enters storage in discharge bay.
Compared with prior art, the beneficial effects of the present invention are:
The present invention adjusts three separators of height formula and suspended biological filler net using liftable, improves three separation
Effect, while the treatment effect to protein in milk product waste is also improved, keep protein degradable at ammonia nitrogen；UASB is anti-
Increase MBR reactor after answering device, the water outlet of UASB reactor carries out anti-nitre in the MBR reactor for being equipped with aerobic area and aerobic zone
Ammonia nitrogen is all degraded into nitrogen by change-nitration reaction, so that ammonia nitrogen and total nitrogen content in waste water be made to reduce；In MBR reactor
Hollow-fibre membrane have efficient rejection effect, nitrifier can be made to be fully retained in bioreactor, make nitration reaction efficiently into
Row, effectively removes ammonia nitrogen, avoids the loss of sludge, while can also retain and be difficult to the larger molecular organics degraded for the moment, extends
It is allowed to be decomposed to greatest extent in the residence time of reactor.
The present invention handles the organic loading reduced in milk product waste by UASB anaerobic technique first, makes protein degradation
It for ammonia nitrogen, reduces Organic Pollutants In Water concentration centainly, the ammonia in water body is then further decreased using MBR technique
Nitrogen and organic pollutant concentration, substantially increase operational efficiency and operation stability, while having very strong anti-shock loading
Ability, the processing suitable for the milk product waste that pollutant concentration is high and variation is big.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the milk product waste processing system that the embodiment of the present invention 1 provides；
Fig. 2 is the structural representation of suspended biological filler net in the milk product waste processing system of the offer of the embodiment of the present invention 1
Figure；
Fig. 3 is the structural schematic diagram of UASB reactor in the milk product waste processing system of the offer of the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram for the milk product waste processing system that the embodiment of the present invention 2 provides.
Description of symbols: 1, raw water conditioning tank；2, UASB reactor；3, MBR biology membrane cisterna；4, discharge bay；5, sewage
Water inlet pipe；6, the first outlet pipe；7, the first elevator pump；8, suspended biological filler net；9, cylindrical screen frame；10, suspended biological is filled out
Material；11, three phase separator；12, biogas collection device；13, the second outlet pipe；14, biological membrane assembly；15, aeration tube；16, gas
Pump；17, third outlet pipe；18, the second elevator pump；19, top cover；20, casing；21, heated at constant temperature outer barrel；22, heated at constant temperature water
Bucket；23, constant-temperature effluent pipe；24, constant temperature water inlet pipe；28, water distributor；29, the first collector pipe；30, hollow fiber film assembly；31,
Partition.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Experimental rig used in following each embodiments, as not having in raw water conditioning tank, UASB reactor, MBR biology membrane cisterna
The place of specified otherwise then shows not being related to any improvement and innovation using existing experimental rig；The test side
Method is unless otherwise specified conventional method.
Embodiment 1
A kind of milk product waste processing system, it is specific as shown in Figure 1-3, include raw water conditioning tank 1, UASB reactor 2,
MBR biology membrane cisterna 3 and discharge bay 4, the upper end of raw water conditioning tank 1 are equipped with sewage water inlet pipe 5, and bottom end is equipped with the first outlet pipe 6,
Raw water mixing pump is equipped in raw water conditioning tank 1.Since milk product waste is from a wealth of sources, if any washes, production waste water etc., this
A little Pollutants in Wastewater concentration are different, and for the steady running of maintenance system, raw water conditioning tank 1, each stock is arranged in the present invention
Waste water enters in raw water conditioning tank 1, carries out homogeneous by the raw water mixing pump being equipped in raw water conditioning tank 1.
The bottom end of UASB reactor 2 is connected to by the first outlet pipe 6 with raw water conditioning tank 1, and the first outlet pipe 6 is equipped with the
One elevator pump 7, the first elevator pump 7 in waste water lifting to UASB reactor 2 in raw water conditioning tank 1 for will handle.?
In UASB reactor 2 under the action of reaction zone anaerobic sludge, the COD in waste water is removed well, and protein, fat etc. contain
Nitrogen material is also largely degraded, and is become ammonia nitrogen, nitrate nitrogen and nitrite nitrogen and is handled by anti-nitration reaction.
Be additionally provided with suspended biological filler net 8 in UASB reactor 2, suspended biological filler net 8 include cylindrical screen frame 9 and
The suspended biological filler 10 being filled in cylindrical screen frame 9, the mixed liquor of reaction zone after completion of the reaction are entering three phase separator
Gas-liquid pre-separation is carried out before 11 in suspended biological filler net 8, under the action of suspended biological filler 10, mixed liquor can be beaten
It dissipates, gas-liquid separation effect is improved.Meanwhile suspended biological filler 10 has the effect of retention suspended matter concurrently, can retain inoculation
Activated sludge, and form biomembrane on surface, biomembrane can to carry out secondary anaerobism anti-to the waste water before three phase separation is entered
It answers, the nitrogen substances such as protein, fat can be all degraded into ammonia nitrogen, increase reaction benefit.
It should be noted that suspended biological filler net 8 can be fixed in UASB reactor 2, can also activity set
It sets in UASB reactor 2, when activity is arranged, the fixed partition 31 at 2 inner wall two sides relative position of UASB reactor will suspend
Biologic packing material net 8 is shelved on partition 31.
Liftable three phase separator 11, UASB is equipped in UASB reactor 2 at the top of suspended biological filler net 8
The top of reactor 2 is equipped with the top cover 19 that is detachably connected, offers on top cover 19 and wears mouth, wear mouthful at be connected with for three-phase
The casing 20 that 11 escape pipe activity of separator passes through, and the internal diameter phase of the outer diameter of casing 20 and 11 escape pipe of three phase separator
Match；It circumferentially offers multiple tapped limit holes on casing 20, one can be worn in each limit hole and is matched
Stop screw fixes casing 20 with 11 escape pipe of three phase separator wherein worn.This setup can be realized three-phase
The lifting of separator 11.When three phase separator 11 needs to go up and down, 11 escape pipe of three phase separator is mentioned upwards or downwards
It puts, when reaching desired height, stop screw is pierced into limit hole, the position of 11 escape pipe of three phase separator is consolidated
It is fixed.It should be noted that casing 20 is that have certain thickness, such as 3-5cm, stop screw is facilitated to limit.
The three phase separator 11 that can be gone up and down is arranged in the present invention, and the range of 11 height-adjustable of three phase separator is to be located at
8 top of suspended biological filler net, out below water level, will guarantee reasonably to cover water depth, design in the present invention above collection chamber
For 200mm.The three phase separator 11 that present invention setting can be gone up and down is in order to which the treatment situation to different quality waste water is adjusted
Section, to guarantee good three phase separation effect and treatment effect.For UASB reactor, the waste water pair of different N elements
The settleability of activated sludge is different, BOD5/ N sludge settling in the case where 100/5-100/3 is good, and zoogloea structure is tight
Close, aqueous suspension is few out, and COD removal rate can reach 80% or more.But BOD5/ N is this excellent less than 100/5
Gesture will no longer be present, at this time der Pilz excess growth, and sludge settling property is poor, the treatment effect and separating effect of UASB reactor
Can be deteriorated, meanwhile, the nitrogen of high-content can be such that denitrifying bacteria activity substantially reduces, to system nitrogen source and carbon source removal amount compared with
It is few.We can solve this situation by adjusting the height of three phase separator 11, and three phase separator 11 is adjusted to higher
Position can improve the settling property of mixed liquor, so that reaction zone sludge quantity is maintained higher concentration and carry out anti-nitration reaction, ensure
The normal operation of subsequent MBR system.
It should be noted that the outside of 2 upper end of UASB reactor is equipped with external screw thread, be equipped on the inside of top cover 19 match it is interior
Screw thread, UASB reactor 2 are spirally connected with top cover 19 by external screw thread and internal screw thread；It is additionally provided with rubber sealant on 20 inner wall of casing,
It can make to keep sealing state between 11 escape pipe of casing 20 and three phase separator, biogas is avoided to escape in air.
The escape pipe of three phase separator 11 passes through the top of UASB reactor 2, and is communicated with biogas collection device 12, biogas
Water seal mode is taken in collection device 12, the height of gas chamber liquid level in three separators is balanced by hydrostatic pressure, is prevented simultaneously
Gas enters the room in only managing；The second outlet pipe is equipped on the side wall of UASB reactor 2 at the top of three phase separator 11
13。
MBR biology membrane cisterna 3 is connected to by the second outlet pipe 13 with UASB reactor 2, and partition is equipped in MBR biology membrane cisterna 3
31, and the height of partition 31 is the 2/3 of 3 height of MBR biology membrane cisterna, MBR biology membrane cisterna 3 is separated into aerobic area and become reconciled by partition 31
Oxygen area, aerobic area are equipped with biological membrane assembly 14 in UASB reactor 2, aerobic zone, and the lower section of biological membrane assembly 14, which is equipped with, to expose
Tracheae 15, the inlet end of aeration tube 15 pass through the side wall of MBR biology membrane cisterna 3, and with the air pump 16 that is located at outside MBR biology membrane cisterna 3
Connection；The top of MBR biology membrane cisterna 3 is equipped with third outlet pipe 17, and the water outlet of third outlet pipe 17 is located in discharge bay 4, and
Third outlet pipe 17 is equipped with the second elevator pump 18.
COD has obtained good processing in the water outlet of UASB reactor 5, but ammonia nitrogen and total phosphorus content are still higher, by this
Part water outlet is passed through MBR biology membrane cisterna 3 and is handled.Aerobic area and aerobic zone is arranged in the present invention in MBR biology membrane cisterna 3, simultaneous
Oxygen area can cooperate aerobic zone to carry out denitrogenation dephosphorizing, and partition 31 is equipped between aerobic area and aerobic zone, and UASB reactor 5 is discharged
It initially enters aerobic area to be reacted, the water after reaction is by 31 top overflow of partition into aerobic zone, and also there is part water in aerobic zone
Into aerobic area, thus the progress for facilitating nitrification and denitrification to react.
Biological membrane assembly 14 is equipped in aerobic zone, biological membrane assembly 14 includes that two first vertically and be oppositely arranged catchment
Pipe 29 is horizontally connected with hollow fiber film assembly 30, the bottom end envelope of two the first collector pipes 29 between two the first collector pipes 29
It closes, top is communicated with the second lateral collector pipe jointly, and the second collector pipe is connected to the third outlet pipe 17；Aerobic area water outlet
Into aerobic zone, and enter inside hollow fiber film assembly 30, the water outlet handled well in hollow fiber film assembly 30 enters two
In first collector pipe 29, and then enter the second collector pipe, in the second collector pipe processing water under the action of the second elevator pump 18 into
Enter in discharge bay 4, i.e., is collected into the qualified milk product waste of processing in discharge bay 4.
Under the efficient crown_interception of biological membrane assembly 14, nitrifier is fully retained in MBR biology membrane cisterna 3, makes to nitrify
It reacts smooth, effectively removes ammonia nitrogen, avoid the loss of sludge, while organic matter can also be retained, extend it anti-
The residence time for answering device is allowed to be decomposed to greatest extent, while also having good mud-water separation effect, makes effluent quality
Better than general secondary settling tank.After the processing of MBR biology membrane cisterna 3, water outlet meets emission request.
It, can be with it should be noted that one end that the first outlet pipe 6 is located in UASB reactor 2 is also communicated with water distributor 28
Make, raising treatment effeciency evenly dispersed into water.
Embodiment 2
A kind of milk product waste processing system is specific as shown in figure 4, with embodiment the difference is that in embodiment 2 also
Including temperature control processing system, temperature control processing system includes heated at constant temperature outer barrel 21 and heated at constant temperature bucket 22, outside heated at constant temperature
Bucket 21 is set at the reaction zone of 2 outer lower end of UASB reactor, and the upper end of heated at constant temperature outer barrel 21 is equipped with constant-temperature effluent pipe 23, under
It holds and is equipped with constant temperature water inlet pipe 24, the other end of constant-temperature effluent pipe 23 and constant temperature water inlet pipe 24 is connected to heated at constant temperature bucket 22；
Bottom end is equipped with heating tube in heated at constant temperature bucket 22, and the side of 22 bottom end of heated at constant temperature bucket by the pipeline with valve and goes out
Pond 4 is connected to.
In the present invention, the structure of heated at constant temperature bucket 22 and the structure of thermostat water bath are identical with principle, also can be used
The thermostat water bath of large size maintains its water temperature between 30-35 DEG C by water in heating tube heating kettle, and then this part is permanent
Warm water is always held between heated at constant temperature outer barrel 21 and heated at constant temperature bucket 22 and recycles, and makes in three phase separator 11 in reaction zone
Temperature is kept constant, and is conducive to the progress of reaction.
In general, waste water fermentation processing is divided into low, medium and high temperature three classes, so far most of waste water fermentation processing systems
System is run in mesophilic range, and in every 10 DEG C of the raising of this range temperature, anaerobic reaction speed is about doubled, and temperature is to anaerobic digestion
Influence be under low temperature that acid-producing bacteria and methanogen metabolic rate are unbalance and destroy acid-base balance in system, the small wave of temperature
Dynamic (such as 1-3 DEG C) will not have a significant effect to anaerobic technique, but if at a temperature of the range of decrease spend big (more than 5 DEG C), then due to dirt
To prevent the problems such as causing reactor acid accumulation due to overload, i.e., the reduction of mud vigor, the load of reactor should also be as reducing
" acidification " that we often say, otherwise biogas output can be decreased obviously, or even stop generating, and volatilize acid accumulation at the same time, water outlet
PH decline, COD value increase.And for general anaerobic reaction device, in winter, temperature is difficult to keep in device
In mesophilic range, the temperature control processing system that the present invention is arranged is able to solve this problem, make the treatment effect of reaction unit not by
The influence in season and environment.
Embodiment 3
A kind of milk product waste processing system, difference from Example 2 is to be equipped with PLC controller in embodiment 3, former
Water mixing pump, valve, the first elevator pump 7, air pump 16, the second elevator pump 18 are electrically connected with PLC controller, are controlled by PLC
The control of device can be realized the automatic operating of reaction unit.
Embodiment 4
Tested using the milk product waste of certain dairy enterprises, in raw water conditioning tank 1 COD concentration be 2386mg/L,
BOD5Concentration is that 1264mg/L, TN concentration are 66.32mg/L, NH4 +- N concentration is that 9.14mg/L, TP concentration are 73.68mg/L, benefit
Milk product waste is handled with the milk product waste processing system of embodiment 1, comprising the following steps:
Step 1, the milk product waste stored in raw water conditioning tank 1 is promoted by the first elevator pump 7 and arrives UASB reactor 2
In, while 11 height of three phase separator in UASB reactor 2 is adjusted to highest point, i.e. 11 least significant end of three phase separator is transferred to
Below two outlet pipes, 13 liquid level, three phase separator collection chamber distance from top outlet pipe liquid level 200mm；
Controlling temperature in 2 reaction zone of UASB reactor is 30-35 DEG C, and HRT 18h, COD volumetric loading is 6.25kgCOD/
m3D finishes after having reacted and obtains the water outlet of UASB reactor 2；
Step 2, the water outlet of UASB reactor 2 enters MBR biology membrane cisterna 3, controls aerobic area concentration in MBR biology membrane cisterna 3 and is
0.3mg/L, hydraulic loading 0.49m3/(m2.h), DO concentration is 5mg/L in aerobic zone in MBR biology membrane cisterna 3, and hydraulic loading is
0.064m3/(m2.h), COD volumetric loading is 2.29kgCOD/m3D, HRT 5h finish after having reacted and obtain MBR biology membrane cisterna 3
Water outlet；
Step 3, the water outlet of MBR biology membrane cisterna 3 enters storage in discharge bay 4.
4 wastewater treatment efficiency of embodiment is detected, the results are shown in Table 1.
1 milk product waste treatment effect of table
As it can be seen from table 1 milk product waste processing system of the invention has processing effect well to milk product waste
Fruit, the water outlet obtained after processing can satisfy " integrated wastewater discharge standard " first discharge standard, and processing system of the invention
It is especially excellent to the removal effect of ammonia nitrogen, total nitrogen, total phosphorus.
In order to illustrate the treatment effect of UASB reactor in the present invention and MBR biology membrane cisterna, also individually to UASB reactor
It is detected with MBR biology membrane cisterna water-in and water-out, concrete outcome is shown in Table 2.
UASB reactor and the independent treatment effect of MBR biology membrane cisterna in 2 embodiment 4 of table
From table 2 it can be seen that UASB reactor used in the present invention has good removal to the COD in milk product waste
Effect, and organic nitrogen can be degraded into ammonia nitrogen, the nitrate nitrogen, nitrite nitrogen in total nitrogen are handled well；So
Ammonia nitrogen carries out sufficient nitrification-denitrification in MBR reactor afterwards, removes ammonia nitrogen.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within be also intended to include these modifications and variations.
Claims (8)
1. a kind of milk product waste processing system, which is characterized in that raw including raw water conditioning tank (1), UASB reactor (2), MBR
The upper end of object membrane cisterna (3) and discharge bay (4), the raw water conditioning tank (1) is equipped with sewage water inlet pipe (5), and bottom end is equipped with first
Outlet pipe (6), the raw water conditioning tank (1) is interior to be equipped with raw water mixing pump；
The bottom end of the UASB reactor (2) is connected to by the first outlet pipe (6) with the raw water conditioning tank (1), and described first
Outlet pipe (6) is equipped with the first elevator pump (7), is equipped with suspended biological filler net (8) in the UASB reactor (2), described outstanding
Pelagic organism filler net (8) includes cylindrical screen frame (9) and the suspended biological filler being filled in the cylindrical screen frame (9)
(10)；
Liftable three phase separation is equipped in the UASB reactor (2) at the top of the suspended biological filler net (8)
The escape pipe of device (11), the three phase separator (11) passes through the top of the UASB reactor (2), and is communicated with collecting methane
Device (12)；The second water outlet is equipped on the side wall of the UASB reactor (2) at the top of the three phase separator (11)
It manages (13)；
The MBR biology membrane cisterna (3) is connected to by second outlet pipe (13) with the UASB reactor (2), and the MBR is raw
Partition (31) are equipped in object membrane cisterna (3), and the height of the partition (31) is the 2/3 of MBR biology membrane cisterna (3) height, institute
It states partition (31) and the MBR biology membrane cisterna (3) is separated into aerobic area and aerobic zone, the aerobic area is reacted close to the UASB
Device (2) is equipped with biological membrane assembly (14) in the aerobic zone, and the lower section of the biological membrane assembly (14) is equipped with aeration tube (15),
The inlet end of the aeration tube (15) pass through the MBR biology membrane cisterna (3) side wall, and be located at the MBR biology membrane cisterna (3)
Outer air pump (16) connection；The top of the MBR biology membrane cisterna (3) is equipped with third outlet pipe (17), the third outlet pipe
(17) water outlet is located in the discharge bay (4), and the third outlet pipe (17) is equipped with the second elevator pump (18).
2. milk product waste processing system according to claim 1, which is characterized in that the top of the UASB reactor (2)
End is equipped with the top cover (19) that is detachably connected, offers on the top cover (19) and wears mouth, it is described wear mouthful at be connected with for institute
State the casing (20) that three phase separator (11) escape pipe activity passes through, and the outer diameter of described sleeve pipe (20) and the three phase separator
(11) internal diameter of escape pipe matches；Multiple tapped limit holes are circumferentially offered in described sleeve pipe (20), it is each described
The stop screw to match can be worn in limit hole, by described sleeve pipe (20) and the three phase separation that wherein wears
Device (11) escape pipe is fixed.
3. milk product waste processing system according to claim 2, which is characterized in that UASB reactor (2) upper end
Outside be equipped with external screw thread, be equipped with the internal screw thread to match, the UASB reactor (2) and the top on the inside of the top cover (19)
Lid (19) is spirally connected by external screw thread and internal screw thread；Rubber sealant is additionally provided on described sleeve pipe (20) inner wall.
4. milk product waste processing system according to claim 1, which is characterized in that the biological membrane assembly (14) includes
Two the first collector pipes (29) that are vertical and being oppositely arranged are horizontally connected with hollow fibre between two first collector pipes (29)
It ties up membrane module (30), the bottom end closure of two first collector pipes (29), top is communicated with the second lateral collector pipe jointly,
Second collector pipe is connected to the third outlet pipe (17).
5. milk product waste processing system according to claim 1, which is characterized in that first outlet pipe (6) is located at
One end in the UASB reactor (2) is also communicated with water distributor (28).
6. milk product waste processing system according to claim 1, which is characterized in that further include temperature control processing system, institute
Stating temperature control processing system includes heated at constant temperature outer barrel (21) and heated at constant temperature bucket (22), heated at constant temperature outer barrel (21) set
It is located at the reaction zone of UASB reactor (2) outer lower end, the upper end of the heated at constant temperature outer barrel (21) is equipped with constant-temperature effluent
It manages (23), lower end is equipped with constant temperature water inlet pipe (24), the other end of the constant-temperature effluent pipe (23) and the constant temperature water inlet pipe (24)
It is connected to the heated at constant temperature bucket (22)；
The interior bottom end of the heated at constant temperature bucket (22) is equipped with heating tube, and the side of the heated at constant temperature bucket (22) bottom end passes through
Pipeline with valve is connected to the discharge bay (4).
7. milk product waste processing system according to claim 1, which is characterized in that the raw water mixing pump, described
One elevator pump (7), the air pump (16), the second elevator pump (18) are electrically connected with PLC controller.
8. the processing method of milk product waste processing system described in a kind of claim 1, which comprises the following steps:
Step 1, the milk product waste stored in raw water conditioning tank (1) is promoted by the first elevator pump (7) and arrives UASB reactor
(2) in, controlling temperature in UASB reactor (2) reaction zone is 30-35 DEG C, and HRT 18h, COD volumetric loading is 6.25kgCOD/
m3D finishes after having reacted and obtains UASB reactor (2) water outlet；
Step 2, UASB reactor (2) water outlet enters MBR biology membrane cisterna (3), controls MBR biology membrane cisterna (3) interior aerobic area concentration
≤ 0.5mg/L, hydraulic loading 0.49m3/(m2.h), DO concentration is 3-5mg/L in MBR biology membrane cisterna (3) aerobic zone, and waterpower is negative
Lotus is 0.064m3/(m2.h), COD volumetric loading is 2.29kgCOD/m3D, HRT 5h finish after having reacted and obtain MBR biology
Membrane cisterna (3) water outlet；
Step 3, MBR biology membrane cisterna (3) water outlet enters storage in discharge bay (4).
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