CN106116031A - A kind of efficient treatment process of slaughtering wastewater - Google Patents
A kind of efficient treatment process of slaughtering wastewater Download PDFInfo
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- CN106116031A CN106116031A CN201610601734.4A CN201610601734A CN106116031A CN 106116031 A CN106116031 A CN 106116031A CN 201610601734 A CN201610601734 A CN 201610601734A CN 106116031 A CN106116031 A CN 106116031A
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- sewage
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- 239000002351 wastewater Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 27
- 238000003307 slaughter Methods 0.000 title claims abstract description 18
- 239000010865 sewage Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 25
- 230000001954 sterilising effect Effects 0.000 claims abstract description 23
- 230000007062 hydrolysis Effects 0.000 claims abstract description 18
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000001112 coagulating effect Effects 0.000 claims abstract description 8
- 230000020477 pH reduction Effects 0.000 claims abstract description 8
- 238000001556 precipitation Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 39
- 241000894006 Bacteria Species 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000000706 filtrate Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 239000010802 sludge Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 8
- 238000005189 flocculation Methods 0.000 claims description 7
- 230000016615 flocculation Effects 0.000 claims description 7
- 244000005700 microbiome Species 0.000 claims description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 235000014593 oils and fats Nutrition 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000008280 blood Substances 0.000 claims description 5
- 210000004369 blood Anatomy 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000000813 microbial effect Effects 0.000 claims description 5
- 239000005416 organic matter Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- 108090000913 Nitrate Reductases Proteins 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 239000003673 groundwater Substances 0.000 claims description 3
- 239000000693 micelle Substances 0.000 claims description 3
- 230000002906 microbiologic effect Effects 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 125000003963 dichloro group Chemical group Cl* 0.000 claims 1
- QHFDHWJHIAVELW-UHFFFAOYSA-M sodium;4,6-dioxo-1h-1,3,5-triazin-2-olate Chemical compound [Na+].[O-]C1=NC(=O)NC(=O)N1 QHFDHWJHIAVELW-UHFFFAOYSA-M 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 3
- 239000010828 animal waste Substances 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 210000001835 viscera Anatomy 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- 206010016807 Fluid retention Diseases 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 210000002700 urine Anatomy 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses the efficient treatment process of a kind of slaughtering wastewater, including: sewage is passed through successively grid, screw extruding type solid-liquid separator, oil interceptor, regulating reservoir, flat flow air supporting sedimentation tank, hydrolysis acidification pool, Anoxic/Aerobic pond, coagulative precipitation tank, biofiltration tank, multi-medium filtering tank and sterilization pool, finally stores standby in clear water reserviors.By improving existing sewage treatment process, increase biofiltration tank and multi-medium filtering tank, Organic substance and the small float of residual in sewage are removed thoroughly, improves the clean-up effect of sewage.
Description
Technical field
The invention belongs to technical field of sewage, the efficient treatment process of a kind of slaughtering wastewater.
Background technology
A number of waste water can be produced, essentially from cleaning, disintegrate flushing, interior after butchering in the slaughtering process of domestic animal
Dirty cleaning, ground flushing and excrement and urine water etc..Containing substantial amounts of organic matter in this type of waste water, main component has: animal wastes, blood
The Organic substances such as liquid, internal organs foreign material, poultry hair, onal meat and oils and fats, belong to high concentrated organic wastewater.Waste water is maroon, has relatively
Strong bad smell.Fat in waste water, protein, etc. material without process, being directly discharged into water body will cause seriously water body
Eutrophication, the self-purification capacity of heavy damage water body, make water body blackout foul, affect environment and agricultural irrigation.Meat product adds
Factory is in order to normally produce and sustainable development, and protection surrounding water is clean and environment is the most contaminated, needs at slaughtering wastewater
Discharge again after reason.
The water quality of slaughtering wastewater is as shown in the table:
| pH | Phosphate (P) | CODCr | BOD5 | SS | NH3-N | Total coli group≤ | Vegetable and animals oils |
| 6-9 | 18-20mg/ L | 4000 mg/L | 2000mg/L | 1500mg/L | 60mg/L | 36*1012Individual/100mL | 300mg/L |
Existing slaughterhouse wastewater treatment system refer to Application No. 201410554766.4, entitled a kind of slaughterhouse wastewater treatment
The application for a patent for invention of equipment, its processing procedure is: first waste water removed big particulate matter entrance through machinery lattice cupboard and catchmented
Pond, waste water is pumped into oil removal regulating reservoir as promoting pump sump by collecting-tank, removes oils and fats, precipitates the impurity such as feces simultaneously, certainly flow to
Enter regulating reservoir and carry out the regulation of the water yield, water quality, be then pumped into air-flotation system, remove the Organic substance of oil-containing, air supporting water outlet further
Enter Buffer Pool, be lifted into hydrolysis system, larger molecular organics of degrading, gravity flow enters main biochemical technique A-O system,
Here carry out organic degraded, the nitrification-denitrification of ammonia nitrogen, precipitate post processing water qualified discharge, oil removal, gas through two sedimentation tanks
The floating scum silica frost produced is collected separately or enters sludge concentration tank, and the mud that A-O, sedimentation tank, hydrolytic tank produce enters sludge condensation
Pond concentrates, and concentration basin filtrate, dewaterer filtrate return to sump and processes further.This system is silent on concrete technique,
It is difficult to ensure that the effect of sewage disposal.
Summary of the invention
It is an object of the invention to provide the efficient treatment process of a kind of slaughtering wastewater, to existing slaughterhouse wastewater treatment work
Skill improves, thus improves the effect of sewage disposal.
The object of the present invention is achieved like this: the efficient treatment process of a kind of slaughtering wastewater, including: sewage is led to successively
Enter
Grid, for removing the bigger float of the volume in waste water and floating thing；
Screw extruding type solid-liquid separator, filters waste water extruding, removes the float of small volume in waste water；
Oil interceptor, blood stains and oils and fats that density is less float over waste water top layer, thus separate with waste water；
Regulating reservoir, adjusts wastewater effluent amount, makes waste water whole day homogenizing all measure ground water outlet；
Flat flow air supporting sedimentation tank, utilizes aerator aeration in pond, and adds diatomite built agent, and addition is 7.5
mg/m3To 8.5mg/m3, the SS in sewage is adsorbed and flocculation by diatomite built agent, and partly precipitated, at the bottom of pond, is arranged by dredge pump
To sludge-tank, the bubble floating that part produces with aeration forms scum silica frost to sewage surface, scrapes scum silica frost to sludge-tank, thus remove
The SS of more than 90% in waste water；
Hydrolysis acidification pool, adds hydrolysis bacterium and acidifying bacterium in pond, and addition is 1000g/m3, the time of staying of waste water is 4h,
The mode using pulsing jet stirs sewage, hydrolysis bacterium and acidifying bacterium and the larger molecular organics in sewage is converted into microorganism energy
The small organic molecule of enough Direct Resolution, the mud of generation sinks at the bottom of pond, and drains into sludge-tank by dredge pump；
Anaerobic-aerobic pond, in anoxic pond, controls useless oxygen in water less than 0.5mg/L, and temperature is 20 to 35 DEG C, PH be 7 with
On, in anoxic pond, add anaerobe, become nitrogen to enter air in nitrate and nitrate reductase, utilize Anaerobe simultaneously
Process the acid process in course of reaction, macromole fused ring compound is resolved into low molecule organic matter, it is simple to aerobic microbiological
More preferably decomposing, the sewage time of staying in anoxic pond is 57 to 62h；In Aerobic Pond, in waste water, add Na2CO3, PH is adjusted
To 8.0～8.4, utilizing aerator at pond base fabric gas, gas-water ratio is 20:1；Add activated sludge, by NH in waste water3N aoxidizes
For NO3-Organic substance in N, and waste water is by activated sludge absorption, oxidation Decomposition and is partially converted into new microbial bacteria micelle,
Superfluous mud enters sludge-tank, and waste water is 11 to 13h in the time of staying of Aerobic Pond, then is back to anoxic pond, and reflux ratio is
100～400%；
Coagulative precipitation tank, adds polyaluminium chloride, and addition is 6mg/m3, colloid and fine suspension in waste water are condensed into flocculation
Body is also precipitated at the bottom of pond, and floccule body drains into sludge-tank by dirty pump, thus reduces colourity and the COD of waste water, reduces ammonia nitrogen and phosphorus
Content；
Biofiltration tank, utilizes microorganism that the Organic substance in waste water is decomposed into water, CO2And nitrogen；
Multi-medium filtering tank, adds thickness two-stage quartz sand, river sand and activated carbon and removes small float and colourity；
Sterilization pool, adds sodium dichloro cyanurate sterilization, and addition is 15-20mg/m3；
Clear water reserviors, store standby.
Further, described sludge-tank includes the first sludge-tank and the second sludge-tank, described flat flow air supporting sedimentation tank and
Mud in hydrolysis acidification pool enters the first sludge-tank, and the mud in the first sludge-tank is after filter pressing, and filtrate is delivered to oil removal
Pond；Mud in described coagulative precipitation tank and Aerobic Pond enters the second sludge-tank, the mud in the second sludge-tank after filter pressing,
Filtrate is delivered to anoxic pond.
Further, described grid includes coarse grid and thin grid, and the grid gap of coarse grid is 5mm, and the grid gap of thin grid is
3mm, waste water first passes through coarse grid, then by thin grid.
Further, in sterilization pool, the addition of sodium dichloro cyanurate is 18 mg/m3, and sodium dichloro cyanurate is logical
Cross addition sterilization pool after dosing pump precisely measures.
Further, waste water enters clear water reserviors among sterilization pool after ultraviolet sterilization again.
Further, in flat flow air supporting sedimentation tank, the addition of diatomite built agent is 8 mg/m3。
Further, the sewage time of staying in anoxic pond is 59.2h, and the time of staying in Aerobic Pond is 12h.
The invention has the beneficial effects as follows: by improving existing sewage treatment process, increase biofiltration tank and multimedium
Filtering tank, removes thoroughly to Organic substance and the small float of residual in sewage, improves the clean-up effect of sewage.
Accompanying drawing explanation
Fig. 1 is the process chart of slaughtering wastewater of the present invention.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the efficient treatment process of a kind of slaughtering wastewater of the present invention, including: sewage is passed through successively
Grid, for removing the bigger float of the volume in waste water and floating thing, such as the animal wastes of bulk, clot, internal organs
Foreign material, poultry hair, onal meat etc..
Screw extruding type solid-liquid separator, filters waste water extruding, removes the float of small volume in waste water.Spiral squeezes
Pressure type solid-liquid separating machine can use prior art, and the grid such as thinner animal wastes, internal organs foreign material, onal meat, silt cannot be filtered
Fall, therefore use screw extruding type solid-liquid separator to filter removing further, make the most remaining small float in waste water
SS, SS are the abbreviations during Study of Water Environment is administered to float.
Oil interceptor, blood stains and oils and fats that density is less float over waste water top layer, thus separate with waste water.
Regulating reservoir, kills field because the factor of working time, and waste water is concentrated mainly on discharge at night, it is therefore necessary to arrange one
Individual bigger regulating reservoir carrys out the regulating water quality water yield, makes waste water whole day homogenizing all measure ground water outlet, to ensure the normal fortune of whole set of installation
OK, the impact load that follow-up facility is brought is alleviated.
Flat flow air supporting sedimentation tank, utilizes aerator aeration in pond, and adds diatomite built agent, and addition is
7.5 mg/m3To 8.5mg/m3, the SS in sewage is adsorbed and flocculation by diatomite built agent, and partly precipitated is at the bottom of pond, by blowdown
Pump drains into sludge-tank, and the bubble floating that part produces with aeration forms scum silica frost to sewage surface, scrapes scum silica frost to sludge-tank, thus
Remove the SS of more than 90% in waste water.Diatomite built agent refer to diatomite and other flocculant such as aluminium polychlorid etc. by
The new flocculant that proportions obtains, has the advantage such as enhanced coagulation, fast, the good purification of flocculation, it is possible to remove the biggest portion
The ss suspended solid divided, makes sewage become limpid.Scum silica frost preferably employs automatic Slag Scraping Device and clears up.
Hydrolysis acidification pool, adds hydrolysis bacterium and acidifying bacterium in pond, and addition is 1000g/m3, the time of staying of waste water is
4h, uses the mode of pulsing jet to stir sewage, hydrolysis bacterium and acidifying bacterium and the larger molecular organics in sewage is converted into micro-life
Thing can the small organic molecule of Direct Resolution, the mud of generation sinks at the bottom of pond, and drains into sludge-tank by dredge pump.Hydrolysis bacterium
With acidifying bacterium generally anaerobe or the double bacterium that itches, through hydrolyzing, ferment, produce acetic acid and methane phase four-stage, macromole is had
Machine thing decomposes, in order to subsequent treatment.
Anaerobic-aerobic pond, in anoxic pond, controls useless oxygen in water and is less than 0.5mg/L, and temperature is 20 to 35 DEG C, and PH is 7
Above, in anoxic pond, add anaerobe, become nitrogen to enter air in nitrate and nitrate reductase, utilize anaerobism raw simultaneously
Thing processes the acid process in course of reaction, macromole fused ring compound is resolved into low molecule organic matter, it is simple to aerobic micro-life
Thing more preferably decomposes, and the sewage time of staying in anoxic pond is 57 to 62h；In Aerobic Pond, in waste water, add Na2CO3, by PH
Being adjusted to 8.0～8.4, utilize aerator at pond base fabric gas, gas-water ratio is 20:1；Add activated sludge, by NH in waste water3N oxygen
Turn to NO3-Organic substance in N, and waste water is by activated sludge absorption, oxidation Decomposition and is partially converted into new microbial bacteria glue
Group, superfluous mud enters sludge-tank, and waste water is 11 to 13h in the time of staying of Aerobic Pond, then is back to anoxic pond, reflux ratio
It is 100～400%.Sewage circulates in anaerobic-aerobic pond, and the Organic substance in sewage is decomposed by the microorganisms as water, titanium dioxide
Carbon etc., carry out nitrification and denitrification reaction simultaneously, thus remove NH3—N.After anaerobic-aerobic pond, having of the overwhelming majority
Machine thing and ammonia nitrogen are removed.
Coagulative precipitation tank, adds polyaluminium chloride, and addition is 6mg/m3, colloid and fine suspension in waste water are condensed into
Floccule body is also precipitated at the bottom of pond, and floccule body drains into sludge-tank by dirty pump, thus reduces colourity and the COD of waste water, reduces ammonia nitrogen
With the content of phosphorus, sewage is evolved further.COD represents COD.
Biofiltration tank, utilizes microorganism that the Organic substance in waste water is decomposed into water, CO2And nitrogen.In biofiltration tank
Porous aggregate surface be coated with biomembrane, when waste water flows through packed bed, by diffusion process, pollutant component is delivered to biology
Film, pollutant component contacts with the microbial in film and biochemical reaction occurs, and pollutant are decomposed.
Multi-medium filtering tank, adds thickness two-stage quartz sand, river sand and activated carbon and removes small float and colourity.
Sterilization pool, adds sodium dichloro cyanurate sterilization, and addition is 15-20mg/m3。
Clear water reserviors, store standby.
Containing contaminated liquid in the mud of each stage emission, in order to these contaminated liquid are processed, reclaim mud simultaneously,
Described sludge-tank includes the first sludge-tank and the second sludge-tank, the mud in described flat flow air supporting sedimentation tank and hydrolysis acidification pool
Entering the first sludge-tank, the mud in the first sludge-tank is after filter pressing, and filtrate is delivered to oil interceptor；Described coagulative precipitation tank and
Mud in Aerobic Pond enters the second sludge-tank, and the mud in the second sludge-tank is after filter pressing, and filtrate is delivered to anoxic pond.
In order to strengthen filter effect, described grid includes coarse grid and thin grid, and the grid gap of coarse grid is 5mm, thin grid
Grid gap be 3mm, waste water first passes through coarse grid, then by thin grid.
In order to prevent chlorine residue in water from exceeding standard while ensureing disinfection effect, in sterilization pool, sodium dichloro cyanurate
Addition is 18 mg/m3, and sodium dichloro cyanurate by dosing pump precisely measure after add sterilization pool.
In order to kill escherichia coli fully, waste water enters clear water reserviors among sterilization pool after ultraviolet sterilization again.This
Outward, ultraviolet also has the effect removing chlorine residue.
Preferably, in flat flow air supporting sedimentation tank, the addition of diatomite built agent is 8 mg/m3。
Preferably, the sewage time of staying in anoxic pond is 59.2h, and the time of staying in Aerobic Pond is 12h.
Embodiment
The waste water of certain slaughterhouse generation every day is 500m3, design Sewage Disposal disposal ability is 500m every day3, according to dirt
Water emission equivalent, native system is by running design in 20 hours every day, and sewage load hourly is 25 m3, the water quality feelings of sewage
Condition is:
| pH | Phosphate (P) | CODCr | BOD5 | SS | NH3-N | Total coli group≤ | Vegetable and animals oils |
| 6-9 | 18-20mg/ L | 4000 mg/L | 2000mg/L | 1500mg/L | 60mg/L | 36*1012Individual/100mL | 300mg/L |
Processing procedure is: be passed through successively by sewage
Grid gap is the coarse grid of 5mm and thin grid that grid gap is 3mm；
Screw extruding type solid-liquid separator, carries out extruding and filters waste water；
Oil interceptor, uses brick mix structure, and dischargeable capacity is 50m3, isolate blood stains and oils and fats；
Regulating reservoir, uses steel and concrete structure, and dischargeable capacity is 300m3, when inflow is less than 25m3During/h, not water-retention in regulating reservoir；
When inflow is more than 25m3During/h, the water yield of regulating reservoir remains 25m3/ h, remaining sewage stores within regulating reservoir, waits to gush
The water yield hour continues with；
Flat flow air supporting sedimentation tank, uses rubble+steel and concrete structure, utilizes aerator aeration in pond, and it is multiple to add diatomite
Ingredients, addition is 8mg/m3, the SS in sewage is adsorbed and flocculation by diatomite built agent, and partly precipitated is at the bottom of pond, by arranging
Dirty pump drains into sludge-tank, and the bubble floating that part produces with aeration forms scum silica frost to sewage surface, scrapes scum silica frost to the first mud
Pond；
Hydrolysis acidification pool, uses steel and concrete structure, and dischargeable capacity is 150m3, in pond, adding hydrolysis bacterium and acidifying bacterium, addition is
1000g/m3, the time of staying of waste water is 4h, uses the mode of pulsing jet to stir sewage, hydrolysis bacterium and acidifying bacterium by sewage
Larger molecular organics be converted into microorganism can the small organic molecule of Direct Resolution, the mud of generation sinks at the bottom of pond, and leads to
Crossing dredge pump and drain into the first sludge-tank, the mud in the first sludge-tank is after filter pressing, and filtrate is delivered to oil interceptor；
Anaerobic-aerobic pond, anoxic pond uses steel and concrete structure, and dischargeable capacity is 1480m3, control useless oxygen in water and be less than
0.5mg/L, temperature is 30 DEG C, and PH is 7～7.5, adds anaerobe, nitrate and nitrate reductase are become nitrogen in anoxic pond
Gas enters air, utilizes the acid process in anaerobic bio-treated course of reaction simultaneously, and macromole fused ring compound is resolved into
Low molecule organic matter, it is simple to aerobic microbiological more preferably decomposes, the sewage time of staying in anoxic pond is 59.2h；Aerobic Pond is adopted
With steel and concrete structure, dischargeable capacity is 300m3, in waste water, add Na2CO3, PH is adjusted to 8.0～8.4, utilizes aerator in pond
Base fabric gas, gas-water ratio is 20:1；Add activated sludge, by NH in waste water3N is oxidized to NO3-Organic substance in N, and waste water
By activated sludge absorption, oxidation Decomposition and be partially converted into new microbial bacteria micelle, superfluous mud enters the second sludge-tank,
Waste water is 12h in the time of staying of Aerobic Pond, then is back to anoxic pond, and reflux ratio is 300%；
Coagulative precipitation tank, uses rubble+steel and concrete structure, adds polyaluminium chloride, and addition is 6mg/m3, the colloid in waste water is with thin
Micro suspension thing is condensed into floccule body and is precipitated at the bottom of pond, and floccule body drains into the second sludge-tank, in the second sludge-tank by dirty pump
Mud is after filter pressing, and filtrate is delivered to anoxic pond；
Biofiltration tank, utilizes endophyte and adapts to the carrier of this flora survival and reproduction and organically combine, by waste water
Organic substance is decomposed into water, CO2And nitrogen；
Multi-medium filtering tank, adds thickness two-stage quartz sand, river sand and activated carbon and removes small float and colourity；
Sterilization pool, sodium dichloro cyanurate will add sterilization pool after utilizing dosing pump precisely to measure, and addition is 18mg/m3, and
Ultraviolet generator is installed in sterilization pool, utilizes ultraviolet to carry out assisting sterilisation sterilization；
Clear water reserviors, use steel and concrete structure, and dischargeable capacity is 50m3, clear water stands 2 hours, stores standby.
Detecting the water in clear water reserviors, result is as follows:
| 1, COD (CODCr) | 18 mg/L |
| 2, five-day BOD (BOD5) | 4 mg/L |
| 3, float (SS) | 3.5 mg/L |
| 4, vegetable and animals oils | 0.2 mg/L |
| 5, petroleum-type | 0.1 mg/L |
| 6, anion surfactant | 0.2 mg/L |
| 7, total nitrogen | 7 mg/L |
| 8, ammonia nitrogen (in terms of N) | 2mg/L |
| 9, total phosphorus | 0.2 mg/L |
| 10, colourity | 14 |
| 11, pH value | 6.5—7.5 |
| 12, total coli group (individual/L)≤ | 28 |
Fully meet the regulation in " urban wastewater treatment firm pollutant emission standard " (GB/18918-2002) one-level A standard.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. the efficient treatment process of a slaughtering wastewater, it is characterised in that including: sewage is passed through successively
Grid, for removing the bigger float of the volume in waste water and floating thing；
Screw extruding type solid-liquid separator, filters waste water extruding, removes the float of small volume in waste water；
Oil interceptor, blood stains and oils and fats that density is less float over waste water top layer, thus separate with waste water；
Regulating reservoir, adjusts wastewater effluent amount, makes waste water whole day homogenizing all measure ground water outlet；
Flat flow air supporting sedimentation tank, utilizes aerator aeration in pond, and adds diatomite built agent, and addition is 7.5
mg/m3To 8.5mg/m3, the SS in sewage is adsorbed and flocculation by diatomite built agent, and partly precipitated, at the bottom of pond, is arranged by dredge pump
To sludge-tank, the bubble floating that part produces with aeration forms scum silica frost to sewage surface, scrapes scum silica frost to sludge-tank, thus remove
The SS of more than 90% in waste water；
Hydrolysis acidification pool, adds hydrolysis bacterium and acidifying bacterium in pond, and addition is 1000g/m3, the time of staying of waste water is 4h, adopts
Stirring sewage by the mode of pulsing jet, the larger molecular organics in sewage is converted into microorganism with acidifying bacterium by hydrolysis bacterium can
The small organic molecule of Direct Resolution, the mud of generation sinks at the bottom of pond, and drains into sludge-tank by dredge pump；
Anaerobic-aerobic pond, in anoxic pond, controls useless oxygen in water less than 0.5mg/L, and temperature is 20 to 35 DEG C, PH be 7 with
On, in anoxic pond, add anaerobe, become nitrogen to enter air in nitrate and nitrate reductase, utilize Anaerobe simultaneously
Process the acid process in course of reaction, macromole fused ring compound is resolved into low molecule organic matter, it is simple to aerobic microbiological
More preferably decomposing, the sewage time of staying in anoxic pond is 57 to 62h；In Aerobic Pond, in waste water, add Na2CO3, PH is adjusted
To 8.0～8.4, utilizing aerator at pond base fabric gas, gas-water ratio is 20:1；Add activated sludge, by NH in waste water3N aoxidizes
For NO3-Organic substance in N, and waste water is by activated sludge absorption, oxidation Decomposition and is partially converted into new microbial bacteria micelle,
Superfluous mud enters sludge-tank, and waste water is 11 to 13h in the time of staying of Aerobic Pond, then is back to anoxic pond, and reflux ratio is
100～400%；
Coagulative precipitation tank, adds polyaluminium chloride, and addition is 6mg/m3, colloid and fine suspension in waste water are condensed into flocculation
Body is also precipitated at the bottom of pond, and floccule body drains into sludge-tank by dirty pump, thus reduces colourity and the COD of waste water, reduces ammonia nitrogen and phosphorus
Content；
Biofiltration tank, utilizes microorganism that the Organic substance in waste water is decomposed into water, CO2And nitrogen；
Multi-medium filtering tank, removes small float and colourity；
Sterilization pool, adds sodium dichloro cyanurate sterilization, and addition is 15-20mg/m3；
Clear water reserviors, store standby.
The efficient treatment process of a kind of slaughtering wastewater the most according to claim 1, it is characterised in that: described sludge-tank includes
First sludge-tank and the second sludge-tank, the mud in described flat flow air supporting sedimentation tank and hydrolysis acidification pool enters the first mud
Pond, the mud in the first sludge-tank is after filter pressing, and filtrate is delivered to oil interceptor；Dirt in described coagulative precipitation tank and Aerobic Pond
Mud enters the second sludge-tank, and the mud in the second sludge-tank is after filter pressing, and filtrate is delivered to anoxic pond.
The efficient treatment process of a kind of slaughtering wastewater the most according to claim 1 and 2, it is characterised in that: described grid bag
Including coarse grid and thin grid, the grid gap of coarse grid is 5mm, and the grid gap of thin grid is 3mm, and waste water first passes through coarse grid, then passes through
Thin grid.
The efficient treatment process of a kind of slaughtering wastewater the most according to claim 1, it is characterised in that: in sterilization pool, dichloro
The addition of sodium isocyanurate is 18 mg/m3, and sodium dichloro cyanurate by dosing pump precisely measure after add sterilization pool.
The efficient treatment process of a kind of slaughtering wastewater the most according to claim 4, it is characterised in that: waste water sterilization pool it
Middle after ultraviolet sterilization, enter clear water reserviors again.
The efficient treatment process of a kind of slaughtering wastewater the most according to claim 1, it is characterised in that: flat flow air supporting precipitates
Chi Zhong, the addition of diatomite built agent is 8 mg/m3。
The efficient treatment process of a kind of slaughtering wastewater the most according to claim 6, it is characterised in that: sewage is in anoxic pond
The time of staying be 59.2h, the time of staying in Aerobic Pond is 12h.
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| CN112047583A (en) * | 2020-09-27 | 2020-12-08 | 云南今业生态建设集团有限公司 | Slaughterhouse sewage treatment process |
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| CN108689550A (en) * | 2018-05-21 | 2018-10-23 | 李亮亮 | A kind of processing method of slaughterhouse sewage |
| CN108793649A (en) * | 2018-09-13 | 2018-11-13 | 江苏开放大学（江苏城市职业学院） | A kind of meat processing waste water processing unit and method |
| CN109133538A (en) * | 2018-10-12 | 2019-01-04 | 河南恒安环保科技有限公司 | A kind of slaughterhouse wastewater treatment method |
| CN109502886A (en) * | 2018-11-21 | 2019-03-22 | 山西大学 | A kind for the treatment of process of meat products processing waste water |
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