CN204897639U - Novel effluent disposal system slaughters - Google Patents
Novel effluent disposal system slaughters Download PDFInfo
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- CN204897639U CN204897639U CN201520426905.5U CN201520426905U CN204897639U CN 204897639 U CN204897639 U CN 204897639U CN 201520426905 U CN201520426905 U CN 201520426905U CN 204897639 U CN204897639 U CN 204897639U
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Abstract
The utility model discloses a novel effluent disposal system slaughters, its characterized in that: including artifical grid (1), be connected with rotation mechanical bar screen (2) again, be connected with oil removal sedimentation tank (3) again, get into aeration equalizing basin (4), reentrant air supporting device (5), air supporting device (5) are connected with charge device (13), are connected with hydrolysis -acidification pool (6) again, are connected with contact oxidation tank (7) again, get into sedimentation tank (8), are connected with disinfection pond (9) again, are connected with mechanical filter (10) at last, air supporting device (5) and sedimentation tank (8) are connected with sludge tihckener (14) respectively, and sludge tihckener (14) are connected with sludge dewaterer (15), and the supernatant flows back to the equalizing basin. The utility model discloses efficient handling slaughters waste water, reduces the incidence of disease, improves health, improve ecological environment, marsh gas that the system produced is recoverable to be used for throwing light on, cook, electricity generation etc..
Description
Technical field
The utility model belongs to field of Environment Protection waste disposal plant, relates to a kind of novel slaughterhouse wastewater treatment system particularly.
Background technology
The main source of slaughterhouse wastewater is a series of waste water of discharging in the process of slaughtering, and the principal feature of waste water is: concentration of suspension is large, and organic contamination substrate concentration is high, discharges a certain amount of blood, hair, broken bone, ight soil, intestines and grease etc. in the process of slaughtering.The waste water directly outer row of these content, affects the healthy of surrounding resident.
Summary of the invention
The purpose of this utility model is to provide a kind of novel slaughterhouse wastewater treatment system, effectively processes slaughterhouse wastewater, reduces disease, improves health; Improve the ecological environment, the biogas that system produces recyclable for throwing light on, cooking, generating etc., while utilizing refuse, can also economic benefit be brought.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions: a kind of novel slaughterhouse wastewater treatment system, comprise artificial grid, then be connected with rotary machine grid, then be connected with oil partiting precipitation pool, enter aerating regulation pond, enter air-floating apparatus again, air-floating apparatus is connected with chemicals dosing plant, then is connected with hydrolysis acidification pool, be connected with contact-oxidation pool again, enter settling tank, then be connected with sterilization pool, be finally connected with mechanical filter; Air-floating apparatus is connected with sludge thickener respectively with settling tank, and sludge thickener is connected with sludge dewatering equipment, and supernatant liquor is back to equalizing tank.
Described air-floating apparatus scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
Described sterilization pool is connected with sterilizing unit.
Described aerating regulation pond is connected with gas blower respectively with contact-oxidation pool.
The utility model compared with prior art has obvious advantage and beneficial effect.From above technical scheme, the utility model has following characteristics:
1) effectively process slaughterhouse wastewater, reduce disease, improve health;
2) improve the ecological environment;
3) biogas that produces of system recyclable for throwing light on, cooking, generating etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is native system slaughterhouse wastewater treatment process flow sheet.
Mark in figure: 1, artificial grid, 2, rotary machine grid, 3, oil partiting precipitation pool, 4, aerating regulation pond, 5, air-floating apparatus, 6, hydrolysis acidification pool, 7, contact-oxidation pool, 8, settling tank, 9, sterilization pool, 10, mechanical filter, 11, sterilizing unit, 12, gas blower, 13, chemicals dosing plant, 14, sludge thickener, 15, sludge dewatering equipment.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to novel slaughterhouse wastewater treatment system embodiment, feature and the effect thereof that the utility model proposes, be described in detail as follows.
See Fig. 1-2, a kind of novel slaughterhouse wastewater treatment system, comprises artificial grid 1, be connected with rotary machine grid 2 again, be connected with oil partiting precipitation pool 3 again, enter aerating regulation pond 4, then enter air-floating apparatus 5, air-floating apparatus 5 is connected with chemicals dosing plant 13, be connected with hydrolysis acidification pool 6 again, be connected with contact-oxidation pool 7 again, enter settling tank 8, be connected with sterilization pool 9 again, be finally connected with mechanical filter 10; Air-floating apparatus 5 is connected with sludge thickener 14 respectively with settling tank 8, and sludge thickener 14 is connected with sludge dewatering equipment 15, and supernatant liquor is back to equalizing tank.
Described air-floating apparatus 5 scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
Described sterilization pool 9 is connected with sterilizing unit 11.
Described aerating regulation pond 4 is connected with gas blower 12 respectively with contact-oxidation pool 7.
A, pre-treatment
One-level pre-treatment:
Butcher and contain a large amount of blood stains, grease, fur, meat bits, bone bits, internal organ, indigested food, ight soil etc. in meat processing sewage, must artificial grid be set before waste water treatment engineering, in order to avoid gate valve, pump, instrument etc. in subsequent processing units are blocked or are damaged, and reduce follow-up processing load simultaneously, reduce and run processing cost.
Native system treatment scale is less, but water quality is complicated, inclusion is more, select in design rotary machine grid each one as one-level preprocessing means, be mainly used in fur, meat bits, bone bits, internal organ and other the relatively large inclusiones removed in sewage, grid slag configures artificial trolley by owner unit and collects transport, reduces labour intensity.
Secondary pre-treatment:
Butcher and contain a large amount of vegetable and animals oils and suspended substance in meat processing sewage, as directly entered aftertreatment systems, will increase the processing load of biochemical system, after causing biochemical treatment, effluent quality exceeds standard.The design's choice for use oil partiting precipitation pool oil removal by gravitational settling, to remove vegetable and animals oils in sewage and larger suspended substance.Animal grease is regularly manually pulled out, and throw out is carried to sludge thickener by sludge lifting device.
B, water quality and quantity are equal and regulate
Owing to butchering and the feature of meat processing industry self, the discharge of wastewater in slaughterhouse has the feature (every day, day part produced load difference) significantly concentrating discharge, cause the wastewater flow fluctuation of slaughterhouse and meat processing industry comparatively large, excessive change will be unfavorable for the normal running of waste water disposal facility equipment and ensure treatment effect.Because biochemical unit is comparatively responsive to water quality, the water yield and impact load, for ensureing that sewage works water quality and quantity is stablized, the design arranges aerating regulation pond, its object is to equal to sewage enforcement water quality and quantity and regulates, ensure Sewage treatment systems stable smooth operation, ensure total system qualified discharge.
Arrange preaeration in equalizing tank to stir, implement to stir to equalizing tank, while preventing equalizing tank sludgd deposition, implement sewage preaeration, to improve subsequent disposal effect.
Equalizing tank sewage is delivered to subsequent handling through lift pump.
C, air-floating apparatus
Native system air flotation processing device scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
Containing a large amount of cotton-shaped suspended substance (or claiming non-solubility material), grease and dissolved organic matter in native system sewage.Partial solubility organism under certain condition, non-solution solution material can be converted into, this technique makes partial solubility organism pass at adding coagulant in sewage and flocculation agent and turns to non-solubility material, again non-for major part solution solution material (i.e. SS) and grease are removed in pneumatically supported mode, to reduce SS, COD, BOD in sewage and oils, reach the object of purifying waste water.
Sewage is promoted to air-floating apparatus from water collecting basin through sewage pump, add after coagulating agent and flocculation agent through chemicals dosing plant and enter air floatation machine aeration section, this device is that the high speed rotating utilizing air to transport loose gas impeller bottom pipe forms a vacuum zone in water, air on liquid level is imported in water, thus produces a large amount of fine gas bubbles.Microbubble is directly between 10 ~ 300 μm, and in microbubble uphill process, impurity wadding grain adheres to bubble surface, and relies on buoyancy to make it float up to the water surface, takes suspended solid to the water surface.The suspended substance floated on the surface is removed along motion of melt surface by slag scraper continuous print.Slag scraper is driven back and forth by a stepless speed adjusting gear, pass through chain gear, scraper plate moves along the whole width levels of air flotation slot, suspended solid is pushed into mud receiving tank, entering mud discharging pipeline, be equipped with the spiral propeller of level in mud discharging pipeline, send into after sludge collector through collected mud and get rid of.The outlet of sewage after purification before discharge first below metal sheet enters overflow groove and discharges thereupon.
Open reflux line stretches bottom air flotation slot from aeration section, air floatation machine can form a negative pressuren zone having at the bottom of the pond of return line, this suction function can make waste water only then return air supporting section in aeration zone from the bottom backflow in pond, this process ensures when not having flow, air supporting is constantly carried out.
The native system air-flotation process time is 30min, and design SS clearance is 80 ~ 90%, COD clearance is 40 ~ 50%.
Sewage after air-flotation process enters hydrolysis acidification pool process.
D, acidication
Non-solubility material in sewage and macromolecule organic are huge because of relative molecular weight, can not permeate through cell membranes, therefore directly can not utilize for bacterium, and it is lower directly to enter aerobic treatment efficiency, and it is decomposed into small molecules at hydrolysis stage by bacterium extracellular enzyme.These micromolecular hydrolysates can be dissolved in water and permeate through cell membranes is utilized by bacterium.Hydrolytic process is usually comparatively slow, and the concentration etc. of many factors as temperature, organic composition, hydrolysate may affect the speed of hydrolysis and the degree of hydrolysis.Souring stage, micromolecular compound is more simple compound at the cellular transformation of acidifying bacterium and is secreted into extracellular.
Sewage after acidication greatly can reduce rear class aerobic treatment burden.
E, aerobic treatment
Sewage after acidication enters aerobic treatment process unit, and native system aerobic treatment adopts contact oxidation technology.
Contact oxidation method is a kind of aerobic biological film method technique, and microorganism is grown in water with microbial film form and suspended state, and therefore it has the feature of both active sludge and biological filter concurrently.3 D elastic filler and aerating pipelines system are set in pond, and in aerating pipelines system, micro-hole aerator are installed.Elastic filler is made up of the strand of the PP material of plucking and twisted rope, rounded hairbrush shape, and specific surface area is large, can adhere to a large amount of microorganisms (microbial film).This biofilm is fast, and demoulding is easy, and during operation, strand can play fabulous cutting action to air filled cavity, makes air pocket cut into small bubbles, can increase gas liquid interfacial area, promotes the transmission of oxygen, thus improves treatment effect.Micro-hole aerator intensity is high, not fragile, uniform air distribution, and drag losses is little, anticorrosive, the utilization ratio of oxygen up to more than 15%, with elastic filler with the use of, larger energy-saving effect can be reached.Because the specific surface area of filler is large, in pond, the utilization ratio of oxygen is high, has higher volumetric loading, and shock-resistant; Biological contact oxidation pond does not need sludge recirculation system, there is not sludge bulking problem, and operational management is convenient; In biological contact oxidation pond, biosolids amount is many, and when organic volumetric loading is higher, its F/M can remain on certain level.Finally CO is broken down at biological contact oxidation pond organic carbon hydrate
2and H
2o.
Acidication is combined with contact oxidation technology, can realize removing BOD, COD and good Nitrogen/Phosphorus Removal preferably, effectively can meet the feature of native system sewage, ensures that stable effluent quality is up to standard.
F, denitrogenation processing
The denitrogenation processing of trade effluent generally adopts biological process denitrogenation, its principle is under aerobic condition, organonitrogen in waste water and ammonia-state nitrogen are converted into nitrite nitrogen and nitric nitrogen by nitrifier, afterwards under anaerobic, nitrite nitrogen and nitric nitrogen are converted into nitrogen by denitrifying bacteria, previous stage is called nitration reaction, and the latter half is called anti-nitration reaction.The main path of this project wastewater treatment denitrogenation is the aerobic environment generation nitration reaction on contact-oxidation pool carrier biofilm surface, is then anaerobic environment in carrier biofilm inside, anti-nitration reaction occurs, thus realizes synchronous nitration denitrification denitrogenation.
Affect factor mainly temperature, dissolved oxygen, pH value and the denitrifying carbon source of biological denitrificaion efficiency; In biological denitrification system, nitrifier rate of growth is comparatively slow, so, enough sludge ages be had, namely require that system is carried out under must maintaining lower sludge loading condition, just can reach nitrated object.Denitrification then needs to carry out under anoxic conditions, and will, when there being abundant carbon source to provide energy, denitrification just can be impelled to carry out smoothly.
According to above analysis, require at removal BOD
5while can realize the function of denitrogenation, anoxic and aerobic unit must be had in biochemical treatment system, only have the organic assembling of these two unit just can reach and remove BOD
5and NH
3the function of-N." acidication+catalytic oxidation " biochemical processing process that native system is selected effectively can meet the requirement of sewage water denitrification.
G, dephosphorization treatment
The minimizing technology of Phosphorus From Wastewater is mainly chemical method, biological process and method that both combine.Chemistry ratio juris is in waste water, add the chemical substances such as aluminium salt, molysite, forms calcium phosphate precipitation, thus realize dephosphorization by chemical reaction.Biological rule be the polyP bacteria of active sludge under anaerobic, the phosphorus of body inner accumulated is emitted in water, afterwards under aerobic condition, from waste water, absorbs excessive phosphorus form phosphorus containing sludge, and finally with the form of excess sludge, phosphorus is discharged system, thus realize the dephosphorization object of waste water.In the present system, the form that the removal of phosphorus adopts chemical method to combine with biological process, that is: at pretreatment stage, owing to adding a certain amount of aluminium salt or molysite at air flotation pool, can remove most phosphorus in water inlet, the polyP bacteria simultaneously in acidication stage former water and mud under anaerobic discharges phosphorus, in contact-oxidation pool, polyP bacteria again can excessive consumption phosphorus under aerobic condition, the excess sludge absorbing excessive phosphorus enters concentration basin, carries out dehydration outward transport afterwards, thus realizes biological phosphate-eliminating.
H, to disinfect
Native system sewage contains a large amount of bacterium and pathogenic agent, and unprocessed direct discharge will cause larger harm to environment water, therefore need disinfection.The design arranges sterilization pool, adopts chlorine dioxide generator to carry out contact sterilizing to sewage, to meet the requirement of sewage in discharge and reuse.
I, advanced treatment of wastewater
Sewage after sterile-processed is after mechanical filter filters, SS and COD further in removal sewage, stablizes wastewater treatment efficiency on the one hand, expands the reuse approach of the rear sewage of process on the other hand.Sewage after filtering can directly discharge or reuse.
J, sludge disposal
To produce a certain amount of biological sludge in biological wastewater treatment process, its water ratio is high, and volume is large, is not easy to conveying and disposes; Simultaneously also containing large amount of organic, mud is easily degenerated smelly.Because this project sludge quantity is little, and containing hazardous and noxious substances (as parasitic ovum, sex pheromone, heavy metal ion etc.), if do not deal carefully with and dispose, will cause secondary pollution, the design does not arrange sludge press filtration dewatering unit, mud enters the concentrated rear supernatant liquor of concentration basin and is back to equalizing tank, and dope is disposed by there being the regular sucking-off of the environmental sanitation department disposing qualification to transport outward.
The utility model wastewater treatment operative norm: " discharge standard of water pollutants for meat paching industry " (GB13457-1992) table 3 primary standard; Use the utility model Inlet and outlet water water-quality guideline, see the following form
Table 1-1 Inlet and outlet water water-quality guideline table look-up
| Project | Design influent quality index | Design water outlet water-quality guideline |
| PH(zero dimension) | 6~8.5 | 6~8.5 |
| COD cr（mg/L） | ≤2000 | ≤80 |
| BOD 5（mg/L） | ≤800 | ≤30 |
| SS（mg/L） | ≤1000 | ≤60 |
| Vegetable and animals oils (mg/L) | ≤80 | ≤15 |
| Ammonia nitrogen (mg/L) | ≤50 | ≤15 |
| Coliform number (individual/L) | —— | ≤5000 |
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, anyly do not depart from technical solutions of the utility model content, the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a novel slaughterhouse wastewater treatment system, it is characterized in that: comprise artificial grid (1), then be connected with rotary machine grid (2), then be connected with oil partiting precipitation pool (3), enter aerating regulation pond (4), enter air-floating apparatus (5) again, air-floating apparatus (5) is connected with chemicals dosing plant (13), then is connected with hydrolysis acidification pool (6), be connected with contact-oxidation pool (7) again, enter settling tank (8), then be connected with sterilization pool (9), be finally connected with mechanical filter (10); Air-floating apparatus (5) is connected with sludge thickener (14) respectively with settling tank (8), and sludge thickener (14) is connected with sludge dewatering equipment (15), and supernatant liquor is back to equalizing tank.
2. novel slaughterhouse wastewater treatment system as claimed in claim 1, is characterized in that: described air-floating apparatus (5) scrapes mud system by air supporting casing, aerator, chain type, scum silica frost collects and discharge system, overflow water system, electrical control system, glass rotameter, reflux line form.
3. novel slaughterhouse wastewater treatment system as claimed in claim 1, is characterized in that: described sterilization pool (9) is connected with sterilizing unit (11).
4. novel slaughterhouse wastewater treatment system as claimed in claim 1, is characterized in that: described aerating regulation pond (4) is connected with gas blower (12) respectively with contact-oxidation pool (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426905.5U CN204897639U (en) | 2015-06-19 | 2015-06-19 | Novel effluent disposal system slaughters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426905.5U CN204897639U (en) | 2015-06-19 | 2015-06-19 | Novel effluent disposal system slaughters |
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| CN204897639U true CN204897639U (en) | 2015-12-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645688A (en) * | 2016-01-28 | 2016-06-08 | 王祥 | Slaughter wastewater treatment complete device and slaughter wastewater treatment method |
| CN105859036A (en) * | 2016-05-12 | 2016-08-17 | 安徽国能亿盛环保科技有限公司 | Slaughter house wastewater treatment process |
| CN106746235A (en) * | 2016-12-30 | 2017-05-31 | 安徽德玉环境工程装备有限公司 | A kind of Pig farm wastewater processing equipment |
| CN108516654A (en) * | 2018-06-26 | 2018-09-11 | 沈阳环境科学研究院 | The biological reinforced artificial swamp waste water reclaiming integrated processing systems of SBBR+HVC and its integrated processing method |
| CN112408723A (en) * | 2020-12-07 | 2021-02-26 | 深圳市浩天源环保科技有限公司 | Slaughterhouse wastewater treatment method and system |
-
2015
- 2015-06-19 CN CN201520426905.5U patent/CN204897639U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645688A (en) * | 2016-01-28 | 2016-06-08 | 王祥 | Slaughter wastewater treatment complete device and slaughter wastewater treatment method |
| CN105645688B (en) * | 2016-01-28 | 2018-11-16 | 王祥 | Slaughterhouse wastewater treatment complexes and slaughterhouse wastewater treatment method |
| CN105859036A (en) * | 2016-05-12 | 2016-08-17 | 安徽国能亿盛环保科技有限公司 | Slaughter house wastewater treatment process |
| CN106746235A (en) * | 2016-12-30 | 2017-05-31 | 安徽德玉环境工程装备有限公司 | A kind of Pig farm wastewater processing equipment |
| CN108516654A (en) * | 2018-06-26 | 2018-09-11 | 沈阳环境科学研究院 | The biological reinforced artificial swamp waste water reclaiming integrated processing systems of SBBR+HVC and its integrated processing method |
| CN112408723A (en) * | 2020-12-07 | 2021-02-26 | 深圳市浩天源环保科技有限公司 | Slaughterhouse wastewater treatment method and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |