CN107555718A - Cultivation wastewater purification processing unit - Google Patents
Cultivation wastewater purification processing unit Download PDFInfo
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- CN107555718A CN107555718A CN201710913212.2A CN201710913212A CN107555718A CN 107555718 A CN107555718 A CN 107555718A CN 201710913212 A CN201710913212 A CN 201710913212A CN 107555718 A CN107555718 A CN 107555718A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 42
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 238000003756 stirring Methods 0.000 claims abstract description 45
- 239000010865 sewage Substances 0.000 claims abstract description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 238000005273 aeration Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000009395 breeding Methods 0.000 claims description 17
- 230000001488 breeding effect Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 239000012528 membrane Substances 0.000 abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 9
- 239000011574 phosphorus Substances 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052785 arsenic Inorganic materials 0.000 abstract description 8
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 8
- 239000003120 macrolide antibiotic agent Substances 0.000 abstract description 8
- 229940041033 macrolides Drugs 0.000 abstract description 8
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 229910052725 zinc Inorganic materials 0.000 abstract description 8
- 239000011701 zinc Substances 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 229940072172 tetracycline antibiotic Drugs 0.000 abstract description 6
- 239000013049 sediment Substances 0.000 abstract description 5
- -1 sulfamido Substances 0.000 abstract description 5
- 229940108928 copper Drugs 0.000 abstract description 4
- 229940091658 arsenic Drugs 0.000 abstract description 2
- 239000010802 sludge Substances 0.000 description 20
- 210000003608 fece Anatomy 0.000 description 18
- 238000000926 separation method Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000011133 lead Substances 0.000 description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 210000002700 urine Anatomy 0.000 description 6
- 244000144972 livestock Species 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 244000144977 poultry Species 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000006396 nitration reaction Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 244000207740 Lemna minor Species 0.000 description 2
- 235000006439 Lemna minor Nutrition 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 2
- 235000001855 Portulaca oleracea Nutrition 0.000 description 2
- 239000004098 Tetracycline Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 239000005416 organic matter Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 235000019364 tetracycline Nutrition 0.000 description 2
- 229940040944 tetracyclines Drugs 0.000 description 2
- 150000003522 tetracyclines Chemical class 0.000 description 2
- 235000002937 Clintonia borealis Nutrition 0.000 description 1
- 240000002814 Clintonia borealis Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- 235000007602 Opuntia linguiformis Nutrition 0.000 description 1
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- 238000010521 absorption reaction Methods 0.000 description 1
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- 239000007900 aqueous suspension Substances 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a kind of cultivation wastewater purification processing unit, including sewage collecting pool, pretreatment box, solid-liquid separator and oxygen case, aeration case and the biological film filter being sequentially connected, sewage collecting pool includes the broken pond of stirring and collecting pit, stirring is provided with agitating device in broken pond, and pumping device is provided with collecting pit；Pretreatment box includes being used for the dog-house for adding flocculant, casing both sides have shifted to install agitating device I, dog-house opposite side is provided with solid-liquid separator in casing top, the fluid hole I passes through water pump, drain pipe I connects with solid-liquid separator, the present invention can remove the nitrogen in sediment, phosphorus, sulfamido, macrolides and tetracycline antibiotics and copper, arsenic, zinc, the heavy metal such as lead and nickel, reach the effect that purification de-tastes, good processing environment is improved for MBR membrane bioreactors, high target sewage can be handled, effluent quality Quality advance, plant running stability is preferable, reduce operating cost.
Description
Technical field
The invention belongs to the technical field of the multistep treatment of water, waste water or sewage, is specifically related to one kind and is supported for rural area
The cultivation wastewater purification processing unit grown.
Background technology
In recent years, with China's structure of agricultural production adjustment and agriculture industrialization propulsion, scale, intensive livestock and poultry are supported
Grow industry and be able to fast development, turn into the important component of China's Economy of agriculture and countryside；But the side of development one of these plants
Face meets city dweller to meat, the wilderness demand of birds, beasts and eggs group food, also as the important pollution sources of polluted-water；China is every
The wastewater discharge of year livestock and poultry cultivation more than 10,000,000,000 tons, the nitrogen contained in livestock breeding wastewater, phosphorus, antibiotic (such as sulfamido,
Macrolides and Tetracyclines) it is low with heavy metal (copper, arsenic, zinc, lead and nickel etc.) isoconcentration be high harm pollutant, give
Human health constitutes huge potential threat.
The content of the invention
In view of this, it is an object of the invention to provide a kind of cultivation wastewater purification processing unit, the cultivation wastewater purification
Processing unit is by being disposed with sewage collecting pool, pretreatment box, solid-liquid separator and oxygen case, aeration case and biomembrane mistake
Filter, is stirred broken by sewage collecting pool to breeding wastewater, is made big grain mud granule is broken to be easy to be adsorbed, is pre-processed
Case makes flocculant be sufficiently mixed with sludge, and the little particle caused in sludge is adsorbed completely, and solid-liquid separator separation is adsorbed
Sediment, can remove nitrogen, phosphorus, sulfamido, macrolides and tetracycline antibiotics in sediment and copper, arsenic, zinc,
The heavy metal such as lead and nickel, reach the effect that purification de-tastes, good processing environment is improved for MBR membrane bioreactors, can be located
High target sewage is managed, effluent quality Quality advance, plant running stability is preferable, reduces operating cost.
In order to achieve the above object, a kind of cultivation wastewater purification processing unit of the present invention, including the sewage being sequentially connected are received
Ji Chi, pretreatment box, solid-liquid separator and oxygen case, aeration case and biological film filter, the sewage collecting pool are used for and cultivation
Sewage ditch connects in house；
The stirring that the sewage collecting pool includes being arranged side by side crushes pond and collecting pit, and the stirring crushes pond and collecting pit
Between be provided with the hanging partition wall in bottom, the partition wall bottom is provided with fluid hole, and described fluid hole one end is broken positioned at stirring
The bottom in pond, the other end are located at the middle and upper part of collecting pit, and the stirring crushes and is provided with edge, the side around pond and collecting pit
The cover plate for avoiding rainwater from immersing is provided with edge, the height being above the ground level at the top of the edge is no less than 10cm, described to stir
Mix the inlet being provided with broken pond pool wall for being connected with sewage ditch in breeding house；
Agitating device is provided with the broken pond of stirring, pumping device is provided with the collecting pit；
The pretreatment box includes casing, and the casing top is located at casing end and is provided with inlet opening I, the casing
Other end bottom is provided with fluid hole I, and the casing top is provided with inlet opening I for adding feeding intake for flocculant
Mouthful, the casing both sides have shifted to install no less than 1 couple agitating device I, the casing between inlet opening I and fluid hole I
Dog-house opposite side is provided with solid-liquid separator on top, the fluid hole I passes through water pump, drain pipe I and separation of solid and liquid
Device connects；
Discharging tube is provided with the solid-liquid separator, the discharging tube connects with simultaneous oxygen case.
Further, the agitating device includes the stirring motor and one end and motor being vertically arranged on cover plate upper surface
The power transmission shaft that connection, the other end are stretched into the broken pond of stirring, the transmission shaft end are provided with stirring broken blade.
Further, the pumping device includes being horizontally set on cover plate upper surface motor pump group, enter with motor pump group
The liquid suction pipe of mouth connection and the drain pipe with motor pump group outlet, the drawing liquid bottom of the tube stretch into collecting pit bottom.
Further, the liquid outlet of the solid-liquid separator is connected with simultaneous oxygen case overflow, and outlet and the aeration case of oxygen case
Overflow is connected, and the aeration case outlet is connected by drawing liquid pump II with biological film filter bottom liquid inlet mouth.
Further, in addition to methane-generating pit, the deslagging outlet of the solid-liquid separator connect with methane-generating pit entrance.
Further, the agitating device I is arranged to 2 pairs, and the agitating device I includes the stirring electricity for setting outside the enclosure
Machine I, one end is connected with motor shaft I, the other end is stretched into casing power transmission shaft I and the stirring vane for being sleeved on power transmission shaft I ends,
Dynamic sealing is provided between the power transmission shaft I and casing.
The beneficial effects of the present invention are：
1st, the present invention by be disposed with sewage collecting pool, pretreatment box, solid-liquid separator and oxygen case, aeration case and
Biological film filter, is stirred broken by sewage collecting pool to breeding wastewater, makes big grain mud granule is broken to be easy to be inhaled
Attached, pretreatment box makes flocculant be sufficiently mixed with sludge, and the little particle caused in sludge is adsorbed completely, solid-liquid separator separation
Adsorbed sediment, can remove nitrogen, phosphorus, sulfamido, macrolides and tetracycline antibiotics in sediment and
The heavy metals such as copper, arsenic, zinc, lead and nickel, reach the effect that purification de-tastes, good processing ring is improved for MBR membrane bioreactors
Border, high target sewage can be handled, effluent quality Quality advance, plant running stability is preferable, reduces operating cost；
2nd, for the present invention by being collected successively to breeding wastewater, separation of solid and liquid, anaerobism removes biogas, and oxygen, aerobic and film
Separating treatment, integrated use physics and biochemical method are handled breeding wastewater, can handle high target sewage, effluent quality
Quality advance, plant running stability is preferable, reduces operating cost；
3rd, processing of the present invention by coagulation-flocculation technology causes the water quality index stably reaching standard of production water, up to standard same
When, the also removal to ammonia nitrogen, total nitrogen and total phosphorus, significantly reduce the burden of the contaminated wastewater of livestock and poultry cultivation；
4th, the present invention uses integrated MBR system in breeding wastewater so that whole cultivating wastewater purification can stablize height
The operation of effect, while the waste water after processing can be used for cultivating duckweed, and for recycling, for being provided to collection process
Flushing waste water；
5th, excess sludge and rape slag of the present invention, bean dregs are mixed evenly according to mass ratio and are piled into fertile heap, are sent out
The decomposed processing of ferment, is reasonably handled, and mitigates the burden of sludge treatment；
6th, bio membrane treatment of the present invention, effluent quality is both ensure that, ensures system low cost operation again.
Brief description of the drawings
Fig. 1 is the structural representation of cultivation wastewater purification processing unit of the present invention；
Fig. 2 is the structural representation of sewage collecting pool in cultivation wastewater purification processing unit of the present invention；
Fig. 3 is the structural representation of pretreatment box in cultivation wastewater purification processing unit of the present invention.
Reference：1- breeding houses；2- sewage collecting pools；3- pretreatment boxes；4- and oxygen case；5- is aerated case；6- biomembranes
Filter；7- solid-liquid separators；The broken pond of 8- stirrings；9- collecting pits；10- edges；11- cover plates；12- inlets；13- stirring electricity
Machine；14- stirs broken blade；15- motor pump groups；16- liquid suction pipes；17- drain pipes；18- partition walls；19- fluid holes；20- feed liquors
Hole I；21- casings；22- stirring motors I；23- drawing liquid motors；24- drain pipes I；25- water pumps；26- dog-houses；27- screw extrusions
Dewaterer；28- rejector motors；29- scum pipes.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
It is the structural representation of cultivation wastewater purification processing unit of the present invention as shown in Figure 1；The present invention is illustrated in figure 2 to support
Grow the structural representation of sewage collecting pool in wastewater purification treatment equipment；It is illustrated in figure 3 cultivation wastewater purification processing of the present invention
The structural representation of pretreatment box in device；The invention discloses a kind of cultivation wastewater purification processing unit, including it is sequentially connected
Sewage collecting pool 2, pretreatment box 3, solid-liquid separator 7 and oxygen case 4, aeration case 5 and biological film filter 6, the sewage receives
Collection pond 2 is used to connect with sewage ditch in breeding house 1；
The stirring that the sewage collecting pool 2 includes being arranged side by side crushes pond 8 and collecting pit 9, and the stirring crushes pond 8 and received
Collection is provided with the hanging partition wall 18 in bottom between pond 9, and the bottom of partition wall 18 is provided with fluid hole 19, described one end of fluid hole 19
Positioned at the bottom in the broken pond 8 of stirring, the other end is located at the middle and upper part of collecting pit 9, and the stirring is crushed around pond 8 and collecting pit 9
Edge 10 is provided with, the cover plate 11 for avoiding rainwater from immersing is provided with the edge 10, the top of edge 10 is above Ground
The height in face is no less than 10cm, and the feed liquor for being connected with sewage ditch in breeding house is provided with the broken pond pool wall of stirring
Mouthful；
Agitating device is provided with the broken pond 8 of stirring, pumping device is provided with the collecting pit 9；
The pretreatment box 3 includes casing 21, and the top of casing 21 is located at the end of casing 21 and is provided with inlet opening
I20, the other end bottom of casing 21 are provided with fluid hole I, and the top of casing 21 is provided with inlet opening I20 to be used for
The dog-house 26 of flocculant is added, the both sides of casing 21 have shifted to install between inlet opening I20 and fluid hole I to be no less than
1 couple of agitating device I, the top of casing 21 is upper to be provided with solid-liquid separator 7, the fluid hole I away from the opposite side of dog-house 26
Connected by water pump 25, drain pipe I24 with solid-liquid separator 7；
Discharging tube is provided with the solid-liquid separator 7, the discharging tube connects with simultaneous oxygen case 4.
The present embodiment breeding wastewater introduces the broken pond 8 of stirring by sewage ditch, is stirred brokenly in the broken pond 8 of stirring
It is broken, when stool and urine in handling pig house or cowshed, pig house or cowshed ground clean clearly by cleaning device
Reason, the sewage after cleaning are introduced into collecting pit by sewage ditch, are advantageous to enter pig dung or cow dung by stirring breaker
Row is stirred and crushed, and is easy to make pig dung or cow dung be mixed with water, is entered then along fluid hole 19 in collecting pit 9,
It is easy to be drawn into pretreatment box 3 by pumping device and is handled, pig dung either cow dung, pig urcine or ox urine should be avoided
Being deposited in pig house, either the working of cow tongue ground or long-time are rested in collecting pit, are ensured the clean of collecting pit and cleaning, are kept away
Exempt from collecting pit and peculiar smell occur.
The present embodiment is by the way that pretreatment box 3 is arranged between collecting pit 2 and MBR membrane bioreactors, in breeding wastewater
In processing procedure, due to contain in breeding wastewater substantial amounts of sulfamido, macrolides and tetracycline antibiotics and copper,
The heavy metals such as arsenic, zinc, lead and nickel, big to biomembrane damage comparison in MBR membrane bioreactors, biomembrane is easy to be broken soon,
In order to improve the service life of biomembrane and extend usage time, it is necessary to be carried out to the sewage for entering MBR membrane bioreactors pre-
Filtration treatment, the heavy metal such as sulfamido, macrolides and tetracycline antibiotics and copper, arsenic, zinc, lead and nickel is gone
Remove.
The present embodiment by casing both sides be provided with the agitating device that shifts to install, pass through the wadding that the upper end of casing 4 is put into
Solidifying agent makes flocculant fully diffuse in casing, is sufficiently mixed with sludge in the presence of agitating device, improves flocculant mixing
Coagulation efficiency, after then standing 1-2 hours, mixture is evacuated to by solid-liquid separator by drawing liquid motor and water pump and carries out solid-liquid point
From the liquid flooding separated enters MBR membrane bioreactors and carries out down one of PROCESS FOR TREATMENT, and wherein flocculant can will cause dirt
Little particle in mud is adsorbed completely, can go to denitrogenate, phosphorus, sulfamido, macrolides and tetracycline antibiotics and copper,
The heavy metals such as arsenic, zinc, lead and nickel, reach the effect that purification de-tastes, good processing environment improved for MBR membrane bioreactors,
Extend the service life of MBR membrane bioreactors.
Further, the preferable agitating device include the stirring motor 13 being vertically arranged on the upper surface of cover plate 11 and
The power transmission shaft that one end is stretched into the broken pond 8 of stirring with motor connection, the other end, the transmission shaft end are provided with stirring broken leaf
Piece 14, the structure are advantageous to be stirred the pig dung in sewage or cow dung broken.
Further, the preferable pumping device includes being horizontally set on the upper surface of cover plate 11 motor pump group 15, with
The liquid suction pipe 16 of the entrance of motor pump group 15 connection and the drain pipe 17 with motor pump group outlet, the bottom of liquid suction pipe 16 is stretched
Entering the bottom of collecting pit 9, the structure is advantageous to play the effect of sealed collection sewage, avoids a large amount of rainwater from immersing in collecting pit,
Avoid environmental pollution.
Further, the liquid outlet of the preferable solid-liquid separator 7 is connected with the simultaneous overflow of oxygen case 4, and the outlet of oxygen case 4
It is connected with the aeration overflow of case 5, aeration case 5 outlet is connected by drawing liquid pump II with the bottom liquid inlet mouth of biological film filter 6.
Further, methane-generating pit is preferably also included, deslagging outlet 29 and the methane-generating pit entrance of the solid-liquid separator 7 connect
It is logical.
Further, the preferable agitating device I is arranged to 2 pairs, and the agitating device includes being arranged on outside casing 21
Stirring motor I22, the power transmission shaft I and be sleeved on power transmission shaft I ends that one end is connected with motor shaft I, the other end is stretched into casing
Stirring vane I, be provided with dynamic sealing between the power transmission shaft I and casing 21.
Operation principle of the present invention is as follows：
1) breeding wastewater introduces collecting pit by sewage ditch, be stirred in collecting pit it is broken, the step in pig house or
In person's cowshed when stool and urine, cleaning cleaning is carried out to pig house or cowshed ground by cleaning device, the sewage after cleaning
Collecting pit is introduced into by sewage ditch, by stirring breaker is advantageous to that pig dung or cow dung are stirred and crushed,
Be easy to make pig dung or cow dung be mixed with water, and be sucked into pretreatment box and handled, should avoid pig dung or
Either ox urine is deposited in pig house or the working of cowshed ground or rested on for a long time in collecting pit for cow dung, pig urcine, ensures
The clean and cleaning of collecting pit, avoids collecting pit from peculiar smell occur.
The index of waste water in collecting pit such as following table：
| Index | CODcr | BOD5 | Ammonia nitrogen | ss | Coliform group count |
| Numerical value (mg/L) | 15000-25000 | 4000-7000 | 1000-1500 | 5000-7000 | 2.4x100000000 |
2) waste water of collecting pit is pumped into by pretreatment box by drawing liquid pump I, after adding a certain amount of flocculant and stirring 1h, so
After carry out separation of solid and liquid, the step is mainly by will add flocculant, to pig dung or cow dung, in pig urcine or ox urine not
The particle for being dissolved in water carries out precipitation flocculation, then separates pig dung or cow dung by separation of solid and liquid separator, pig urcine or
In ox urine, wherein in high-speed agitating process, polyacrylamide flocculant is sufficiently mixed with sludge；Subsequent stirring at low speed process
In, the particle in flocculant absorption sludge, form larger floc sedimentation；If high-speed stirred overlong time or excessive velocities, can by having
Established floc sedimentation can be caused broken；, whereas if mixing time is too short or speed is not fast enough；Flocculant can not fill with sludge
Point mixing, the little particle caused in sludge is adsorbed incomplete, can not only go to denitrogenate, phosphorus and a part of antibiotic (such as sulphur
Amine, macrolides and Tetracyclines), and a part of heavy metal (copper, arsenic, zinc, lead and nickel etc.)；Reach what purification de-tasted
Effect.
In the index such as following table of the waste water after pretreatment and separation of solid and liquid：
| Index | CODcr | BOD5 | Ammonia nitrogen | ss | Coliform group count |
| Numerical value (mg/L) | 8000-15000 | 2000-4000 | 100-150 | 300-400 | 20000-40000 |
3) liquid after separation of solid and liquid delivers to simultaneous oxygen case by pumping；Start the underwater stirrer being arranged in simultaneous oxygen case, make
Sewage is sufficiently stirred hydrolysis, and then overflow enters aeration case, and the organic matter in waste water is filled being aerated in case in the presence of microorganism
Point nitration reaction, during nitration reaction pH value control flowed back into 7.5, nitrification liquid from aeration case and the water of oxygen case be by
And oxygen case direct current enters 5-10 times of aeration case water, the water outlet for being aerated case is pumped to film processing system through drawing liquid pump I, the step
So that it is removed by pollutants such as the most CODCr and BOD5 after separation of solid and liquid, in addition further to ammonia nitrogen, total nitrogen
With the removal of total phosphorus, the burden of the contaminated wastewater of livestock and poultry cultivation is significantly reduced；
Water quality index such as following table after simultaneous oxygen and Air Exposure：
| Index | CODcr | BOD5 | Ammonia nitrogen | ss | Coliform group count |
| Numerical value (mg/L) | 600-800 | 200-300 | 100-120 | 200-400 | 15000-25000 |
4) duckweed pond is entered after biofilm filtration into the clear water of film processing system, the step is by adding biology system
Agent, using bio membrane treatment, separation of solid and liquid is efficiently carried out, its separating effect is much better than traditional sedimentation basin, water outlet water
Matter is good, goes out aqueous suspension and turbidity close to zero, can direct reuse, realize sewage recycling；The wherein efficient retention of film
Effect, makes microorganism be completely trapped in bioreactor, realizes reactor hydraulic detention time (HRT) and sludge age (SRT)
Be kept completely separate, operation control is flexibly stable, because the aeration tank that traditional wastewater is handled and second pond are combined into one by MBR, and
Whole process facilities of tertiary treatment are instead of, therefore floor space can be greatly decreased, save construction investment；Beneficial to nitrobacteria
Retention and breeding, system nitrification efficiency is high.Can also there are deamination and phosphorus removal functional by the change of the method for operation；Because sludge age can
With very long, so as to greatly improve the degradation efficiency of hardly degraded organic substance；Other reactor is born in high volumetric loading, low sludge
Run under lotus, long sludge age, excess sludge production is extremely low, due to sludge age can endless, zero sludge discharge can be realized in theory；
Water quality index such as following table after biological film process：
| Index | CODcr | BOD5 | Ammonia nitrogen | ss | Coliform group count |
| Numerical value (mg/L) | 350-400 | 100-150 | 60-80 | 100-150 | 8000-10000 |
Further, entered in the preferable step 2) by the solid of separation of solid and liquid in methane-generating pit and carry out fermentation process,
Caused fire damp is automatically drained out using positive pressure biogas structural tube road in methane-generating pit.
Further, aeration bottom portion is provided with air aeration equipment, the aeration side of use in the preferable step 3)
Formula has boring aeration, jet-flow aeration or micro-pore aeration.
Further, adding appropriate NaOH in the preferable step 3) during nitration reaction makes pH value control 7.5.
Further, formed during the preferable methane-generating pit is interior after precipitating sludge and organic matter and the biofilm filtration
The fertile heap for being piled into high 1.5-2.0m is mixed evenly according to mass ratio with rape slag, bean dregs for sludge, carries out at fermentation maturity
Reason, then fertilizer is obtained after granulation.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
- A kind of 1. cultivation wastewater purification processing unit, it is characterised in that：Including be sequentially connected sewage collecting pool, pretreatment box, Solid-liquid separator and oxygen case, aeration case and biological film filter, the sewage collecting pool are used to connect with sewage ditch in breeding house It is logical；The stirring that the sewage collecting pool includes being arranged side by side crushes pond and collecting pit, and the stirring is broken between pond and collecting pit The hanging partition wall in bottom is provided with, the partition wall bottom is provided with fluid hole, and described fluid hole one end is positioned at the broken pond of stirring Bottom, the other end are located at the middle and upper part of collecting pit, and the stirring crushes and edge is provided with around pond and collecting pit, on the edge The cover plate for avoiding rainwater from immersing is provided with, the height being above the ground level at the top of the edge is no less than 10cm, and the stirring is broken The inlet for being connected with sewage ditch in breeding house is provided with broken pond pool wall；Agitating device is provided with the broken pond of stirring, pumping device is provided with the collecting pit；The pretreatment box includes casing, and the casing top is located at casing end and is provided with inlet opening I, and the casing is another End bottom is provided with fluid hole I, and the casing top is provided with the dog-house for adding flocculant, institute at inlet opening I State casing both sides and shifted to install no less than 1 couple agitating device I between inlet opening I and fluid hole I, in the casing top Dog-house opposite side is provided with solid-liquid separator, the fluid hole I is connected by water pump, drain pipe I with solid-liquid separator；Discharging tube is provided with the solid-liquid separator, the discharging tube connects with simultaneous oxygen case.
- 2. cultivation wastewater purification processing unit as claimed in claim 1, it is characterised in that：The agitating device includes setting vertically The power transmission shaft that the stirring motor on the cover board on surface and one end are stretched into the broken pond of stirring with motor connection, the other end is put, The transmission shaft end is provided with stirring broken blade.
- 3. cultivation wastewater purification processing unit as claimed in claim 1, it is characterised in that：The pumping device is set including level Put the motor pump group on the cover board on surface, the liquid suction pipe that is connected with motor pump inlet and go out with motor pump group outlet Liquid pipe, the drawing liquid bottom of the tube stretch into collecting pit bottom.
- 4. the cultivation wastewater purification processing unit as described in claim any one of 1-3, it is characterised in that：The solid-liquid separator Liquid outlet with and oxygen case overflow be connected, and the outlet of oxygen case be connected with aeration case overflow, it is described be aerated case and export to pass through takes out Liquid pump II connects with biological film filter bottom liquid inlet mouth.
- 5. cultivation wastewater purification processing unit as claimed in claim 4, it is characterised in that：Also include methane-generating pit, the solid-liquid The deslagging outlet of separator connects with methane-generating pit entrance.
- 6. cultivation wastewater purification processing unit as claimed in claim 4, it is characterised in that：The agitating device I is arranged to 2 Right, the agitating device I includes the stirring motor I for setting outside the enclosure, and one end is connected with motor shaft I, the other end stretches into case Internal power transmission shaft I and the stirring vane for being sleeved on power transmission shaft I ends, dynamic sealing is provided between the power transmission shaft I and casing.
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| CN201710913212.2A CN107555718A (en) | 2017-09-30 | 2017-09-30 | Cultivation wastewater purification processing unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710913212.2A CN107555718A (en) | 2017-09-30 | 2017-09-30 | Cultivation wastewater purification processing unit |
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| CN107555718A true CN107555718A (en) | 2018-01-09 |
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| CN201710913212.2A Pending CN107555718A (en) | 2017-09-30 | 2017-09-30 | Cultivation wastewater purification processing unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003746A (en) * | 2021-03-08 | 2021-06-22 | 河南诺飞生物科技有限公司 | But livestock farm effluent treatment plant of automatic filtration solid form waste material |
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