CN212618345U - Special system for leather wastewater treatment - Google Patents
Special system for leather wastewater treatment Download PDFInfo
- Publication number
- CN212618345U CN212618345U CN202021187016.5U CN202021187016U CN212618345U CN 212618345 U CN212618345 U CN 212618345U CN 202021187016 U CN202021187016 U CN 202021187016U CN 212618345 U CN212618345 U CN 212618345U
- Authority
- CN
- China
- Prior art keywords
- tank
- sedimentation tank
- secondary sedimentation
- sludge concentration
- wastewater treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010985 leather Substances 0.000 title claims abstract description 21
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 33
- 239000010802 sludge Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005345 coagulation Methods 0.000 claims abstract description 12
- 230000015271 coagulation Effects 0.000 claims abstract description 12
- 238000005188 flotation Methods 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 239000003546 flue gas Substances 0.000 claims description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 239000000779 smoke Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 208000001840 Dandruff Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a special leather wastewater treatment system, which comprises a mechanical grating, a regulating sedimentation tank, a coagulation air flotation tank, a secondary sedimentation tank, a SBR tank, an incinerator and an ozone generator, wherein the mechanical grating, the regulating sedimentation tank, the coagulation air flotation tank, the secondary sedimentation tank and the SBR tank are sequentially arranged along the flow direction of wastewater, and the rear end of the SBR tank is sequentially provided with a sludge concentration tank and a filter press for treating sludge; the incinerator is sequentially connected with the secondary sedimentation tank and the sludge concentration tank through pipelines, heating plates are arranged at the bottoms of the secondary sedimentation tank and the sludge concentration tank, and a chimney is arranged at the rear end of the sludge concentration tank; the utility model discloses simple structure, high efficiency, low investment will burn the unnecessary heat recovery cyclic utilization that burning furnace produced, reduce energy resource consumption, reduce the pollution to the environment.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically, relates to a leather waste water treatment dedicated system.
Background
The leather is non-putrescible animal leather obtained by processing technologies such as unhairing, tanning and the like, has a structure formed by tightly weaving protein fibers in a three-dimensional space, and is comfortable in hand feeling and good in heat retention. The leather manufacturing brings fashion and warmth to people, and simultaneously generates a large amount of industrial sewage, and a large amount of chemical substances are required to be added in the leather processing process, so that the waste water contains various pollutants and toxic substances such as animal and plant fibers, collagen, sulfide, chromium, dye, surfactant and the like, and the tannery waste water is high in COD (chemical oxygen demand) and complex in components, and is one of industrial waste water which is difficult to treat.
Compared with other waste water, the leather waste water has the advantages of large waste water chromaticity, high content of leather scraps, suspended matters and the like, and can be directly discharged without treatment, and the solid suspended matters can block a pump, a drainage pipeline and a drainage ditch. In addition, a large amount of organic matters and grease can also increase the oxygen consumption of ground water, cause water pollution and endanger the survival of aquatic organisms.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a leather waste water treatment private system to the tannery waste water that middle-size and small-size leather factory produced, with suspended solid etc. in the waste water in addition cyclic utilization and then reduce environmental pollution.
The utility model adopts the following technical proposal:
a special leather wastewater treatment system comprises a mechanical grating, a regulating sedimentation tank, a coagulation air flotation tank, a secondary sedimentation tank, an SBR tank, an incinerator and an ozone generator, wherein the mechanical grating, the regulating sedimentation tank, the coagulation air flotation tank, the secondary sedimentation tank and the SBR tank are sequentially arranged along the flow direction of wastewater, and a sludge concentration tank and a filter press for treating sludge are sequentially arranged at the rear end of the SBR tank; the incinerator is sequentially connected with the secondary sedimentation tank and the sludge concentration tank through pipelines, heating plates are arranged at the bottoms of the secondary sedimentation tank and the sludge concentration tank, and a chimney is arranged at the rear end of the sludge concentration tank.
Preferably, the ozone generator is connected with the coagulation air flotation tank and the secondary sedimentation tank through pipelines.
Preferably, a flue gas filtering tank and an activated carbon tank are sequentially arranged on a pipeline connected with the sludge concentration tank and the chimney.
Preferably, the pipeline between the incinerator and the secondary sedimentation tank, and between the secondary sedimentation tank and the sludge concentration tank is provided with an air blower.
Preferably, the heating plate comprises a flue gas inlet, a heating pipe and a flue gas outlet; the heating pipe is composed of concentric circular steel pipes which are sequentially communicated, the flue gas inlet is communicated with the steel pipe with the largest diameter, and the flue gas outlet is communicated with the steel pipe with the smallest diameter.
Preferably, the smoke outlet is provided with a liquid accumulation pool.
Preferably, the lower end of the liquid accumulation pool is provided with a liquid discharge valve.
The utility model has the advantages that:
the utility model discloses simple structure, high efficiency, low investment will burn the unnecessary heat recovery cyclic utilization that burning furnace produced, reduce energy resource consumption, reduce the pollution to the environment.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the heating plate of the present invention;
fig. 3 is a front view of the heating plate of the utility model.
Shown in the figure:
wherein, 1-flue gas inlet, 2-heating pipe, 3-hydrops pond, 4-flowing back valve, 5-flue gas outlet.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 to 3, a special leather wastewater treatment system comprises a mechanical grid for removing large floating objects (such as scurf) in wastewater, a settling tank for removing heavy suspended matters (such as protein floc) and adjusting water quality and water quantity, a coagulation air flotation tank for removing various forms of pollutants in wastewater, especially macromolecular refractory substances, toxic substances and colloidal substances, a secondary sedimentation tank for solid-liquid separation, and an SBR tank for removing organic substances, nitrogen and phosphorus, wherein the mechanical grid, the settling tank, the coagulation air flotation tank, the secondary sedimentation tank and the SBR tank are sequentially arranged along the flow direction of the wastewater. The SBR tank is used for treating sewage by adopting an SBR method, which is called as an intermittent activated sludge method, and basically carries out water inlet, reaction (aeration), sedimentation, water outlet, standby (idle) and other operations in a single reactor according to time sequence, wherein a period is from the beginning of wastewater inflow to the end of standby time, and the period is repeated repeatedly, so that the aim of wastewater treatment is fulfilled. The intermittent activated sludge system has simple flow, small occupied area, low capital investment and operating cost, better substrate removal effect and capability of adapting to water quantity change. And can better control the activated sludge bulking caused by the filamentous fungi; the method is suitable for small and medium-sized tanneries, and the main parameters are as follows: the hydraulic retention time is HRT 6h, the gas-water ratio is about 20-30, the appropriate nutrient proportion is controlled, and the total removal rates of CODcr, BODS and S2-are respectively 90%, 95% and 65%. The total removal rates of CODcr, BODS and S2-of the wastewater treated by the process flow are respectively 90%, 99% and 98%, and the drainage can reach the national discharge standard. And a filter press is arranged at the rear end of the SBR tank and is a plate-and-frame filter press, and the sludge in the sludge concentration tank is dewatered.
Ozone generated by the ozone generator is connected with the coagulation air flotation tank and the secondary sedimentation tank through pipelines, and the ozone can change the property and the size of the surface charge of the small-particle-size particles so as to gather the charged small particles; meanwhile, in the process of oxidizing the soluble organic matters by ozone, the flocculation effect of Anhui also exists, and the method has a certain effect of improving the coagulation effect; the ozone can chloridize and decompose macromolecular organic matters which are not easy to degrade in water into micromolecular organic matters, oxygenate the water to increase the dissolved oxygen in the water, provide better conditions for subsequent treatment (particularly biological treatment), and the ozone generator can also sterilize, oxidize, decolor and remove odor.
The floating materials generated by the mechanical grating and the adjusting sedimentation tank are manually salvaged and then are burnt by the burning furnace, the floating materials are effectively treated, the generated heat is used for recycling, the burning furnace mainly uses natural gas fuel, the floating materials are used as auxiliary fuel, smoke generated by the burning furnace is connected with heating plates arranged at the bottoms of the secondary sedimentation tank and the sludge concentration tank through pipelines, the smoke firstly heats the secondary sedimentation tank under the action of an air blower, the catalytic decomposition of ozone and medicines in the secondary sedimentation tank is facilitated, the smoke heated by the secondary sedimentation tank also enters the heating plates at the bottom of the sludge concentration tank under the action of the air blower, the sludge in the sludge concentration tank is heated, the sludge treatment speed of the sludge concentration tank is accelerated, the drying of the sludge is accelerated, and the work load of the filter press is reduced. Flue gas behind the sludge concentration tank enters into the flue gas filtering tank arranged at the rear end of the sludge concentration tank, and is cooled and filtered, the flue gas filtering tank is a water tank filled with clear water, the filtered flue gas enters into a closed activated carbon tank filled with activated carbon, the flue gas is filtered again, and the flue gas after being purified is discharged into the air through a chimney.
The heating plate comprises a flue gas inlet 1, a heating pipe 2 and a flue gas outlet 5; the heating pipe 2 is formed by concentric circular steel tubes which are sequentially communicated, the smoke inlet 1 is communicated with the steel tube with the largest diameter, the smoke outlet 5 is communicated with the steel tube with the smallest diameter, smoke generated by the incinerator sequentially passes through the concentric circular steel tubes, and the temperature of the heating plate can be effectively increased. The flue gas outlet 5 is provided with a liquid accumulation pool 3, and the lower end of the liquid accumulation pool 3 is provided with a liquid discharge valve 4. The flue gas meets cold at the circulation in-process, has the comdenstion water to appear, amalgamation pond 3 can effectively collect the comdenstion water to regularly excrete the comdenstion water, prevent that the comdenstion water from blockking up the pipeline.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (7)
1. A special leather wastewater treatment system is characterized by comprising a mechanical grating, a regulating sedimentation tank, a coagulation air flotation tank, a secondary sedimentation tank, an SBR tank, an incinerator and an ozone generator, wherein the mechanical grating, the regulating sedimentation tank, the coagulation air flotation tank, the secondary sedimentation tank and the SBR tank are sequentially arranged along the flow direction of wastewater, and the rear end of the SBR tank is sequentially provided with a sludge concentration tank and a filter press for treating sludge; the incinerator is sequentially connected with the secondary sedimentation tank and the sludge concentration tank through pipelines, heating plates are arranged at the bottoms of the secondary sedimentation tank and the sludge concentration tank, and a chimney is arranged at the rear end of the sludge concentration tank.
2. The special leather wastewater treatment system according to claim 1, wherein the ozone generator is connected with the coagulation air flotation tank and the secondary sedimentation tank through pipelines.
3. The special leather wastewater treatment system according to claim 1, wherein a flue gas filtering tank and an activated carbon tank are sequentially arranged on a pipeline connecting the sludge concentration tank and the chimney.
4. The special leather wastewater treatment system according to claim 1, wherein a blower is arranged on the pipeline between the incinerator and the secondary sedimentation tank, and between the secondary sedimentation tank and the sludge concentration tank.
5. The special leather wastewater treatment system according to claim 1, wherein the heating plate comprises a flue gas inlet (1), a heating pipe (2), a flue gas outlet (5); the heating pipe (2) is composed of concentric circular steel pipes which are sequentially communicated, the flue gas inlet (1) is communicated with the steel pipe with the largest diameter, and the flue gas outlet (5) is communicated with the steel pipe with the smallest diameter.
6. A special leather wastewater treatment system according to claim 5, characterized in that the liquid accumulation tank (3) is arranged on the flue gas outlet (5).
7. A special leather wastewater treatment system according to claim 6, characterized in that a drain valve (4) is arranged at the lower end of the liquid accumulation pool (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021187016.5U CN212618345U (en) | 2020-06-23 | 2020-06-23 | Special system for leather wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021187016.5U CN212618345U (en) | 2020-06-23 | 2020-06-23 | Special system for leather wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212618345U true CN212618345U (en) | 2021-02-26 |
Family
ID=74742428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021187016.5U Expired - Fee Related CN212618345U (en) | 2020-06-23 | 2020-06-23 | Special system for leather wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212618345U (en) |
-
2020
- 2020-06-23 CN CN202021187016.5U patent/CN212618345U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5658306B2 (en) | Advanced treatment method and apparatus for sewage that does not discharge sludge | |
| CN102040294B (en) | Treatment method for circulating water sewerage and reverse osmosis concentrated water | |
| WO2010133151A1 (en) | Organic wastewater recycling treatment method | |
| CN103880238B (en) | A kind of flue gas condensing water treatment device and treatment process | |
| CN107840533B (en) | Method for treating leachate of waste incineration plant | |
| CN203593682U (en) | Stack gas condensate water treating device | |
| CN105859033A (en) | Domestic sewage treatment process | |
| CN108609787A (en) | A kind of landfill leachate submersible burning processing system | |
| CN108585351A (en) | Xinjiang textile industry garden dyeing waste water dual treatment and promotion reclamation rate integrated technique | |
| CN113860637A (en) | Method and system for treating leachate of refuse transfer station in southern region | |
| CN111875151A (en) | System and method for co-processing garbage leachate and incineration fly ash | |
| CN108455801B (en) | Integrated process for quality-based treatment and recycling of printing and dyeing wastewater in textile industry park in Xinjiang area | |
| CN104355451B (en) | The technique of percolate bio-chemical effluent recycling | |
| CN212293240U (en) | Zero-emission treatment system for leachate of waste incineration plant | |
| CN109851118A (en) | The method for removing hardly degraded organic substance in power generation by waste combustion factory percolation liquid membrane concentrate | |
| CN212618345U (en) | Special system for leather wastewater treatment | |
| CN209113686U (en) | A kind of combination unit handling hc effluent with high salt | |
| CN116375282A (en) | Zero release integrated treatment system for wastewater of household garbage incineration power plant | |
| CN206751602U (en) | A kind of high concentration dregs of a decoction Leachate site multistage-combination disposal plant | |
| CN217103417U (en) | Treatment system for sewage of refuse landfill | |
| CN206705911U (en) | A kind of zero-discharge treatment system of garbage-compressing liquid | |
| CN107381828B (en) | Composite microbial preparation for auxiliary treatment of waste cutting fluid and use method | |
| CN210340611U (en) | Combined treatment system for complex wastewater of drilling and completion of oil and gas field | |
| CN212610162U (en) | Resource recycling treatment system for leachate of waste incineration plant | |
| CN106892540A (en) | The zero-discharge treatment system and method for a kind of garbage-compressing liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |