CN203545838U - Slaughter-house wastewater treatment system - Google Patents
Slaughter-house wastewater treatment system Download PDFInfo
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- CN203545838U CN203545838U CN201320629428.3U CN201320629428U CN203545838U CN 203545838 U CN203545838 U CN 203545838U CN 201320629428 U CN201320629428 U CN 201320629428U CN 203545838 U CN203545838 U CN 203545838U
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- wastewater
- tank
- organics
- treatment system
- slaughter
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Abstract
The utility model relates to a slaughter-house wastewater treatment system and relates to a wastewater treatment system. The system is composed of a grid, a pre-aeration regulating tank, an air flotation chamber, a hydrolysis acidification tank, a contact aeration tank, a secondary sedimentation tank and a disinfection chamber which are connected in sequence. According to the system, most of grease and suspended solids can be removed through air flotation in a pretreatment process on the basis of the characteristic of high load of organics in slaughter-house wastewater; macromolecular organics in the wastewater can be hydrolytically acidified into micromolecule organics through hydrolytic acidification treatment in a posttreatment process, then most of macromolecular insoluble organics are degraded into soluble substances, thereby reducing the load through subsequent biochemical treatment; moreover, as high-efficiency active aerobic biological species and high-activity return sludge produced in an ordered aerobic reaction tank are added in the contact aeration tank, most of biochemical organic pollutants in the wastewater are adsorbed, so that COD (Chemical Oxygen Demand) and BOD5 (Biochemical Oxygen Demand for Five Days) in the wastewater can be effectively removed.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment.
Background technology
Along with the raising of people's living standard, to the increase of meat product demand, the ratio of the wastewater discharge of slaughterhouse, meat processing combine in industrial wastewater discharge total amount is also increasing.Slaughterhouse wastewater, from the processing of slaughtering of livestock breeding, bird, is one of organic contamination source of China's maximum.According to investigations, the quantity discharged of slaughterhouse wastewater accounts for 6% of national discharged volume of industrial waste water, and its pollution also has increasing trend.Because the organic matter of the high density containing is difficult for degraded, intractability is larger, if the not treated direct discharge of slaughterhouse wastewater can produce greatly and pollute water surrounding.Therefore.Control COD, BOD in slaughterhouse wastewater
5, the contamination index such as SS, significant for alleviating water pollution.
Summary of the invention
The utility model aims to provide one can effectively remove COD in water, BOD
5, SS slaughterhouse wastewater treatment system.
Slaughterhouse wastewater treatment system described in the utility model, by the grid being connected successively, pre-exposure equalizing tank, between air supporting, hydrolysis acidification pool, contact-oxidation pool, secondary sedimentation basins and disinfection room.
The feature that the utility model is high according to slaughterhouse wastewater organic loading, pre-treatment adopts air supporting can remove wherein most grease, suspended substance etc.The processing of following adopted acidication can become small molecules by the larger molecular organics acidication in water, by insoluble major part organic matter degradation, is dissolved matter, thereby alleviates follow-up biochemical treatment load.In addition in contact-oxidation pool, add high-efficiency activated aerobe bacterial classification and high reactivity returned sluge that in order aerobic reaction pond produces, most in absorption sewage can biochemical organic pollutant. can effectively remove COD in water, BOD
5.Whole slaughterhouse wastewater treatment system is stable, has created good economy, society and environmental benefit.As can be seen here, this slaughterhouse wastewater treatment system is processed in practice feasible, reliable at slaughterhouse wastewater.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment mono-.
Embodiment
Embodiment mono-
Slaughterhouse wastewater treatment system described in the utility model, by the grid being connected successively, pre-exposure equalizing tank, between air supporting, hydrolysis acidification pool, contact-oxidation pool, secondary sedimentation basins and disinfection room.
Waste water enters pre-exposure equalizing tank after grid is removed oarse-grained suspended substance and staple fibre, regulating pondage, homogenizing water quality.In equalizing tank, a small amount of aeration fully mixes waste water simultaneously, reduces sludgd deposition.By pump, promote and enter efficient air-floating apparatus again, remove tiny suspended particle, oil slick and non-solubility organism etc. in water.Waste water flows into after hydrolytic tank, under anerobe effect, the larger molecular organics acidication in water is become to small organic molecule.By insoluble major part organic matter degradation, be dissolved matter, improve the biodegradability of sewage.Solid organic matters degraded is reduced to sludge quantity simultaneously, reach the effect of denitrogenation dephosphorizing.Enter after contact-oxidation pool, by adding active sludge and active aerobe bacterial classification.Biological inoculum is contacted domestication, built-in orderly aerobic system in this device.Current control and the refresh function of utilization system are realized biological degradation.Replace traditional catalytic oxidation, formed special efficacy biochemical sewage treatment system, efficiently removed COD, BOD in water
5.In biological contact oxidation pond water outlet, contain the inorganic suspended particles of bringing in the microbial film that comes off and waste water, must carry out mud-water separation through secondary sedimentation basins; The clear water that secondary sedimentation basins is discharged, except coliform exceeds standard, has all reached emission standard, so clear water must be through disinfecting. and this engineering adopts dioxide peroxide to carry out disinfection to water outlet, and after sterilization, water outlet reaches emission request completely, through sewage draining exit, discharges.
In pre-exposure equalizing tank, by pneumatic blending, guarantee the water quality and quantity equilibrium of subsequent biological treatment facility water inlet, degraded some organic pollutants, to alleviate the processing load of follow-up aerobic section.Equalizing tank adopts skeleton construction, and useful volume is 300 m
3, hydraulic detention time is 8 h, establishes 2 sewage pumps in pond, 1 use 1 is standby.Flow 30 m
3/ h, lift 10 m, power 22 kW.
Air supporting has high-efficiency dissolued-air air-floating apparatus l cover in hearing.Be used for removing sewage suspended substance, grease and the pollutents such as COD are had to certain removal effect.The designing treatment water yield is 150 m
3/ h.Supporting chemicals dosing plant.Adopt brick mix structure.Be of a size of 4mx4mx3 m.
Hydrolysis acidification pool internal anaerobic biological domestication device, and in addition adaptability domestication of the anaerobic species dropping into, anaerobic bacterium under anaerobic becomes the larger molecular organics acidication in water into small molecules, by insoluble major part organic matter degradation, be dissolved matter, improve the biodegradability of sewage.For aerobic treatment creates conditions.This pond is skeleton construction, and useful volume is 260 m
3, HRT=7.2 h.
The aerobic bacterial classification absorption of the built-in activity of contact-oxidation pool leading portion domestication device.Stage casing is floating filler biological contact oxidation pond, and back segment is fixing filler biological contact-oxidation pool.Operation adds active sludge and high-efficiency activated aerobe bacterial classification early stage, and biological inoculum is tamed in domestication device.Make high loading microorganism and underload microorganism enter in order stage casing and back segment by Controlling System.The high reactivity returned sluge absorption that in order aerobic reaction pond produces and remove most in sewage can biochemical organic pollutant.The current of aerobic system utilization system and microbiological manipulation and refresh function have formed special efficacy biochemical sewage treatment system in order, can effectively remove COD in water, BOD
5.Contact-oxidation pool is skeleton construction, and useful volume is 280 m
3, HRr=8.6 h.
Secondary sedimentation basins is the water outlet of solid-liquid separation contact-oxidation pool, removes most of SS, part COD in water, and waste water is thoroughly purified, and guarantees discharged wastewater met the national standard, and spy arranges 1 second pond, useful volume 120 m
3, HRr=3.0 h.
Sterilization pool adopts CIO
2sterilizing agent, C10
2there is strong oxidizing property, decolorization, deodorization and broad-spectrum disinfecting effect.Organic pollutant is had to certain oxygenizement.
Sludge treating system comprises sludge thickener and plate-and-frame filter press.Sludge thickener is skeleton construction, and useful volume is 50 m
3.After concentrated, moisture percentage in sewage sludge can be down to 96% left and right by 99.5%.Sludge dewatering adopts plate-and-frame filter press.Filtration area is 50 m
2.
Claims (1)
1. slaughterhouse wastewater treatment system, is characterized in that by the grid being connected successively, pre-exposure equalizing tank, between air supporting, and hydrolysis acidification pool, contact-oxidation pool, secondary sedimentation basins and disinfection room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629428.3U CN203545838U (en) | 2013-10-13 | 2013-10-13 | Slaughter-house wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629428.3U CN203545838U (en) | 2013-10-13 | 2013-10-13 | Slaughter-house wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545838U true CN203545838U (en) | 2014-04-16 |
Family
ID=50463984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320629428.3U Expired - Fee Related CN203545838U (en) | 2013-10-13 | 2013-10-13 | Slaughter-house wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254113A (en) * | 2014-10-12 | 2016-01-20 | 砀山圣沣食品有限公司 | Slaughter wastewater treatment device |
-
2013
- 2013-10-13 CN CN201320629428.3U patent/CN203545838U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254113A (en) * | 2014-10-12 | 2016-01-20 | 砀山圣沣食品有限公司 | Slaughter wastewater treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140416 Termination date: 20151013 |
|
| EXPY | Termination of patent right or utility model |