CN204356201U - A kind of tannery wastewater treatment system - Google Patents
A kind of tannery wastewater treatment system Download PDFInfo
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- CN204356201U CN204356201U CN201420805137.XU CN201420805137U CN204356201U CN 204356201 U CN204356201 U CN 204356201U CN 201420805137 U CN201420805137 U CN 201420805137U CN 204356201 U CN204356201 U CN 204356201U
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Abstract
The utility model relates to tannery wastewater treatment system, comprise the sulfur-containing waste water treatment system and system for processing chrome-containing wastewater that be arranged in parallel, wherein sulfur-containing waste water treatment system comprise connect in turn the first grid maker, preliminary sedimentation tank and the first sbr reactor pond, system for processing chrome-containing wastewater comprise connect in turn the second grid maker, scratch pool and the second sbr reactor pond, the supernatant liquor rising pipe in described second sbr reactor pond accesses described preliminary sedimentation tank; Biological micro-electrolysis pond, high energy physics oxidation treatment device is connected with in turn after first sbr reactor pond, the water outlet access clean water basin of high energy physics oxidation treatment device or Sewage Plant adapter, sand cylinder strainer, charcoal cylinder strainer, filter core, ultra-filtration equipment, nanofiltration system and reverse osmosis system is connected with in turn after clean water basin, the water outlet of nanofiltration system connects in line water pipe, and the water outlet of reverse osmosis system connects reuse water pipe.This system has higher tannery wastewater treatment effect, and the waste water after process can realize different Effluent criterias.
Description
Technical field
The utility model relates to tannery wastewater treatment system, is specifically related to the tannery wastewater treatment system adopting sbr reactor pond, and waste water can be made to reach Sewage Plant adapter, in line or recycle water standard.
Background technology
Leather-making waste water is the organic waste water of a kind of complicated component, high density, containing the material such as large quantities of lime, dyestuff, protein, salt, grease, ammonia nitrogen, sulfide, chrome tanning agent, neutralizing agent and hair, onal, the dregs of fat, meat slag, silt particle; COD
cr, BOD
5, sulfide, suspended substance be very high, is a kind of trade effluent compared with refractory reason.According to manufacturing procedure and the sub-prime streaming request of tannery, leather-making waste water is mainly divided into sulfur-containing waste water, chromate waste water and other comprehensive wastewater.Sulfide respectively containing high density in sulfur-containing waste water and chromate waste water and heavy metal chromium, be unfavorable for the process up to standard of sewage, if sulfur-bearing, chromate waste water and other comprehensive wastewaters are mixed together laggard row relax, the burden of waste water subsequent disposal can be increased, cause cost of sewage disposal excessive.The pretreatment process of sulfur-containing waste water has acidization, chemical precipitation method and oxidation style, and chromate waste water pre-treatment generally adopts alkaline precipitation.Traditional pretreatment process adopts the series operation of reaction of high order pond, has the shortcomings such as floor space is large, pipe net arrangement is loaded down with trivial details, chemical consumption amount large, mud generation is large, operational management is difficult.Based on above-mentioned operation present situation, in the urgent need to making improvements existing tannery wastewater treatment system, improve the treatment effect of waste water, and the Effluent criteria making waste water reach different, meet the waste water aftertreatment requirement of different enterprise.
Utility model content
Technical problem to be solved in the utility model is the tannery wastewater treatment system providing a kind of improvement for above-mentioned prior art, can improve the pretreating effect of leather-making waste water, reduces subsequent wastewater treatment burden, enables the Effluent criteria that waste water reaches different.
The technical scheme in the invention for solving the above technical problem is: a kind of tannery wastewater treatment system, comprise the sulfur-containing waste water treatment system and system for processing chrome-containing wastewater that be arranged in parallel, wherein sulfur-containing waste water treatment system comprises the first grid maker connected in turn, preliminary sedimentation tank and the first sbr reactor pond, system for processing chrome-containing wastewater comprises the second grid maker connected in turn, scratch pool and the second sbr reactor pond, the supernatant liquor rising pipe in described second sbr reactor pond accesses described preliminary sedimentation tank, the shore pipe external sludge treating system respectively in described first sbr reactor pond and the second sbr reactor pond, biological micro-electrolysis pond, high energy physics oxidation treatment device is connected with in turn after first sbr reactor pond, the water outlet access clean water basin of high energy physics oxidation treatment device or Sewage Plant adapter, sand cylinder strainer, charcoal cylinder strainer, filter core, ultra-filtration equipment, nanofiltration system and reverse osmosis system is connected with in turn after clean water basin, the water outlet of described nanofiltration system connects in line water pipe, and the water outlet of described reverse osmosis system connects reuse water pipe.
Preferably, described first sbr reactor pond and the second sbr reactor pond separately configure or are jointly configured with dosing tank and aerating apparatus.Described dosing tank comprises FeCl
2, HCl dosing tank, NaOH dosing tank, PAM(polyacrylamide) dosing tank.
Preferably, be provided with the first lift pump between described preliminary sedimentation tank and the first sbr reactor pond, described first sbr reactor pond is preset with high liquid level, and the first lift pump is by high Liquid level, and when the full paramount liquid level in the first sbr reactor pond, the first lift pump quits work.
Preferably, be provided with the second lift pump between described scratch pool and the second sbr reactor pond, described second sbr reactor pond is preset with high liquid level, and the second lift pump is by high Liquid level, and when the full paramount liquid level in the second sbr reactor pond, the second lift pump quits work.
Further, before described biological micro-electrolysis pond, nanofiltration system or reverse osmosis system, be provided with header tank, so that realize the storage of sewage between different device.
The concrete technology of above-mentioned tannery wastewater treatment system is:
Sulfur-containing waste water enters the first sbr reactor pond after removing the large particulate matters such as fur, meat mincing, silt by the first grid maker and preliminary sedimentation tank.First sbr reactor pond comprised into stages such as water, reaction, precipitation, draining spoil disposals, was mainly used in removing the sulfide in sulfur-containing waste water, and the first sbr reactor pond is equipped with FeCl
2, HCl dosing tank, NaOH dosing tank, PAM dosing tank and aerating apparatus.First to be drawn water from preliminary sedimentation tank by the first lift pump during operation and pump into the first sbr reactor pond, when the full paramount liquid level in the first sbr reactor pond, the first lift pump quits work; After water inlet end, in the first sbr reactor pond, add FeCl
2, HCl, by pH meter control pH 6.0 ~ 7.0, simultaneously aeration work 6h; Then, add NaOH, PAM, control pH 7.5 ~ 8.5, simultaneously aeration work 1h; Reaction terminates rear natural sedimentation 1h, and the header tank that the first sbr reactor pond supernatant liquor enters below treats aftertreatment, and bottom mud then enters sludge treating system.
Chromate waste water sends after the macrobead suspended substance removings such as the fur in water, cube meat into scratch pool by the second grid maker, then pumps into the second sbr reactor pond.Second sbr reactor pond comprised into stages such as water, reaction, precipitation, draining spoil disposals, was mainly used in removing the chromium in chromate waste water, and the second sbr reactor pond is also equipped with FeCl
2, HCl dosing tank, NaOH dosing tank, PAM dosing tank and aerating apparatus, dosing tank and aerating apparatus can share with the first sbr reactor pond.Second sbr reactor pond adds FeCl under pH 6.0 ~ 7.0 condition
2, add NaOH after period of aeration, and regulate pH to 8.5 ~ 10, then aerated reaction 1h, after quiescent setting for some time, supernatant liquor is sent into preliminary sedimentation tank and sulfur-containing waste water and is mixed and enters the first sbr reactor pond and be for further processing, and bottom mud enters sludge treating system.
The waste water being collected in the header tank after the first sbr reactor pond carries out micro-electrolysis reaction and oxidation degradation reaction by lift pump feeding biological micro-electrolysis pond, light electrolysis rotating cage is furnished with in biological micro-electrolysis pond in the present invention, biological micro-electrolysis ball (ME ball) has been loaded in light electrolysis rotating cage, microbial film is formed on surface after sewage submergence ME ball, polypeptide chain organism in water body is decomposed by microbiological oxidation, the hydrogen, formic acid etc. that are produced by the microbiological anaerobic stage form original position battery simultaneously, carry out light electrolysis oxidative degradation further to pollutent.
Waste water after the process of biological micro-electrolysis pond enters oxidative degradation and the sterilization and disinfection that high energy physics oxidation treatment device carries out the more degree of depth.High energy particle oxidizing reaction pond has been installed in high energy physics oxidation treatment device, under extra electric field, the particle beam on surface, alpha emission field bombards the aqueous solution when reaching certain energy, the oxidizing species (hydroxyl radical free radical and Hydrogen Proton etc.) produced carries out reacting and Strong oxdiative reduction reaction without the Strong oxdiative selected to the pollutent in water body, long chain molecule structural material is made to be able to chain rupture, open loop, by NH
2, OH, CH
3separate from larger molecular organics, generate small-molecule substance; Secondly, the H that bombardment water molecules produces can with the NH in water body
2, OH, CH
3in conjunction with generation NH
3, H
2o and CH
4, significantly reduce the ammonia nitrogen in water body, and greatly reduce COD.Waste water through the process of high energy physics oxidation treatment device directly can send into clean water basin or adapter Sewage Plant.
Further, the waste water suction sand cylinder strainer in clean water basin and charcoal cylinder strainer are removed suspended particulate, and is for further processing by filter core, send into ultrafiltration system ultrafiltration afterwards, filtrate injects header tank.The sand cylinder strainer arranged, charcoal cylinder strainer and filter core contribute to the load reducing subsequent ultrafiltration film processing system, improve operating efficiency.Then, waste water in header tank is pumped into nanofiltration system, after nanofiltration process, water outlet can reach in line standard, or the waste water after nanofiltration process is sent into another header tank, and the water in this header tank is pumped into reverse osmosis system carry out osmosis filtration, the filtrate after process can be used as reuse water and directly accesses workshop and carry out Treated sewage reusing.
Compared with prior art, the utility model has the advantage of:
(1) sulfur-containing waste water shunted in leather production and chromate waste water are separated pre-treatment, carry out corresponding Transformatin according to different impurities form and foreign matter content, can pretreating effect be significantly improved, extenuate follow-up sewage disposal burden.The sbr reactor pond adopted substitutes the operating method of compartition with the operating method of time division, integrate the functions such as homogenizing, reaction, precipitation, greatly reduce the floor space for the treatment of process unit and the setting of corresponding pipe fitting, simplify pipe net arrangement, be convenient to control and management.
(2) be provided with the treatment facility of different Effluent criteria after pre-processing in turn, separately achieve Sewage Plant adapter standard, in line standard, recycle water standard, meet the sewage disposal needs of different process hides producer.
(3) light electrolysis rotating cage process set oxidation degradation and the oxidative degradation of galvanic cell light electrolysis, high energy physics oxygenolysis technology utilizes energetic particle beam to bombard the aqueous solution, produce a large amount of oxidizing species, Strong oxdiative degraded is carried out to each type organic in water body, after two kinds of combine with technique, there is high pollutants removal rate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of tannery wastewater treatment system in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 1, tannery wastewater treatment system in the present embodiment, comprise the sulfur-containing waste water treatment system and system for processing chrome-containing wastewater that be arranged in parallel, wherein sulfur-containing waste water treatment system comprise connect in turn the first grid maker 11, preliminary sedimentation tank 12 and the first sbr reactor pond 13, be connected with the first lift pump 14 between preliminary sedimentation tank 12 and the first sbr reactor pond 13, and the first sbr reactor pond 13 has default high liquid level; System for processing chrome-containing wastewater comprise connect in turn the second grid maker 21, scratch pool 22 and the second sbr reactor pond 23, be connected with the second lift pump 24 between scratch pool 22 and the second sbr reactor pond 23, and the second sbr reactor pond 23 has default high liquid level; First sbr reactor pond 13 and the second sbr reactor pond 23 are separately configured with FeCl
2, HCl dosing tank, NaOH dosing tank, PAM dosing tank and aerating apparatus, the supernatant liquor rising pipe in the second sbr reactor pond 23 accesses the shore pipe external sludge treating system respectively in described preliminary sedimentation tank 12, first sbr reactor pond 13 and the second sbr reactor pond 23.
Further.In order to realize different Effluent criterias, biological micro-electrolysis pond 4, high energy physics oxidation treatment device 5 is connected with in turn after first sbr reactor pond 13, the water outlet access clean water basin 6 of high energy physics oxidation treatment device 5 or Sewage Plant adapter, sand cylinder strainer 7, charcoal cylinder strainer 8, filter core 9, ultra-filtration equipment 10, nanofiltration system 15 and reverse osmosis system 16 is connected with in turn after clean water basin 6, the water outlet of described nanofiltration system 15 connects in line water pipe, and the water outlet of described reverse osmosis system 16 connects reuse water pipe.In addition, the operation for ease of system runs, and is provided with header tank 17 before biological micro-electrolysis pond, nanofiltration system or reverse osmosis system.
Tannery wastewater treatment system cloud gray model in the present embodiment is as follows:
Sulfur-containing waste water enters the first sbr reactor pond 13 after removing the large particulate matters such as fur, meat mincing, silt by the first grid maker 11 and preliminary sedimentation tank 12.First sbr reactor pond 13 comprised into stages such as water, reaction, precipitation, draining spoil disposals, was mainly used in removing the sulfide in sulfur-containing waste water, and the first sbr reactor pond 13 is equipped with FeCl
2, HCl dosing tank, NaOH dosing tank, PAM dosing tank and aerating apparatus.First to be drawn water from preliminary sedimentation tank 12 by the first lift pump 14 during operation and pump into the first sbr reactor pond 13, when the full paramount liquid level in the first sbr reactor pond 13, the first lift pump 14 quits work; After water inlet end, in the first sbr reactor pond 13, add FeCl
2, HCl, by pH meter control pH 6.0 ~ 7.0, simultaneously aeration work 6h; Then, add NaOH, PAM, control pH 7.5 ~ 8.5, simultaneously aeration work 1h; Reaction terminates rear natural sedimentation 1h, and reaction tank supernatant liquor enters subsequent treatment process, and bottom mud then enters sludge treating system.
Chromate waste water sends after the macrobead suspended substance removings such as the fur in water, cube meat into scratch pool 22 by the second grid maker 21, then pumps into the second sbr reactor pond 23.Second sbr reactor pond 23 comprised into stages such as water, reaction, precipitation, draining spoil disposals, was mainly used in removing the chromium in chromate waste water, and the second sbr reactor pond 23 is also equipped with FeCl
2, HCl dosing tank, NaOH dosing tank, PAM dosing tank and aerating apparatus.Second sbr reactor pond 23 adds FeCl under pH 6.0 ~ 7.0 condition
2, add NaOH after period of aeration, and regulate pH to 8.5 ~ 10, then aerated reaction 1h, after quiescent setting for some time, supernatant liquor enters preliminary sedimentation tank 12 and sulfur-containing waste water and is mixed and enters the first sbr reactor pond 13 and be for further processing, and bottom mud enters sludge treating system.
The waste water being collected in the header tank 17 after the first sbr reactor pond 13 carries out micro-electrolysis reaction and oxidation degradation reaction by lift pump feeding biological micro-electrolysis pond 4, light electrolysis rotating cage is furnished with in biological micro-electrolysis pond 4, biological micro-electrolysis ball (ME ball) has been loaded in light electrolysis rotating cage, microbial film is formed on surface after sewage submergence ME ball, polypeptide chain organism in water body is decomposed by microbiological oxidation, the hydrogen, formic acid etc. that are produced by the microbiological anaerobic stage form original position battery simultaneously, carry out light electrolysis oxidative degradation further to pollutent.
Waste water after biological micro-electrolysis pond 4 processes enters oxidative degradation and the sterilization and disinfection that high energy physics oxidation treatment device 5 carries out the more degree of depth.High energy particle oxidizing reaction pond has been installed in high energy physics oxidation treatment device 5, under extra electric field, the particle beam on surface, alpha emission field bombards the aqueous solution when reaching certain energy, the oxidizing species (hydroxyl radical free radical and Hydrogen Proton etc.) produced carries out reacting and Strong oxdiative reduction reaction without the Strong oxdiative selected to the pollutent in water body, long chain molecule structural material is made to be able to chain rupture, open loop, by NH
2, OH, CH
3separate from larger molecular organics, generate small-molecule substance; Secondly, the H that bombardment water molecules produces can with the NH in water body
2, OH, CH
3in conjunction with generation NH
3, H
2o and CH
4, significantly reduce the ammonia nitrogen in water body, and greatly reduce COD.The waste water processed through high energy physics oxidation treatment device 5 directly can send into clean water basin 6 or adapter Sewage Plant.
Further, the waste water suction sand cylinder strainer 7 in clean water basin 6 and charcoal cylinder strainer 8 are removed suspended particulate, and is for further processing by filter core 9, send into ultrafiltration system 10 ultrafiltration afterwards, filtrate injects header tank 17.The sand cylinder strainer 7 arranged, charcoal cylinder strainer 8 and filter core 9 contribute to the load reducing subsequent ultrafiltration device 10 film processing system, improve operating efficiency.Then, waste water in header tank 17 is pumped into nanofiltration system 15, after nanofiltration process, water outlet can reach in line standard, or the waste water after nanofiltration process is sent into another header tank 17, and the water in this header tank 17 is pumped into reverse osmosis system 16 carry out osmosis filtration, the filtrate after process can be used as reuse water and directly accesses workshop and carry out Treated sewage reusing.
When actual design, dosing tank and aerating apparatus also can be shared in the first sbr reactor pond 13 and the second sbr reactor pond 23.
Leather-making waste water pretreatment system of the present utility model, divides moisture flow process by sulfur-containing waste water with containing chromium, can significantly improve pretreated treatment effect, extenuate the burden of follow-up sewage disposal, have employed sbr reactor pond as reaction unit simultaneously, simplify webmaster and arrange, be convenient to control and management.In addition, according to the Effluent criteria of different enterprise, achieve respectively, Sewage Plant adapter standard, in line standard and recycle water standard.
Claims (6)
1. a tannery wastewater treatment system, it is characterized in that: comprise the sulfur-containing waste water treatment system and system for processing chrome-containing wastewater that be arranged in parallel, wherein sulfur-containing waste water treatment system comprises the first grid maker (11) connected in turn, preliminary sedimentation tank (12) and the first sbr reactor pond (13), system for processing chrome-containing wastewater comprises the second grid maker (21) connected in turn, scratch pool (22) and the second sbr reactor pond (23), the supernatant liquor rising pipe in described second sbr reactor pond (23) accesses described preliminary sedimentation tank (12), the shore pipe external sludge treating system respectively in described first sbr reactor pond (13) and the second sbr reactor pond (23), biological micro-electrolysis pond (4), high energy physics oxidation treatment device (5) is connected with in turn after first sbr reactor pond (13), water outlet access clean water basin (6) of high energy physics oxidation treatment device (5) or Sewage Plant adapter, sand cylinder strainer (7), charcoal cylinder strainer (8), filter core (9), ultra-filtration equipment (10), nanofiltration system (15) and reverse osmosis system (16) is connected with in turn after clean water basin (6), the water outlet of described nanofiltration system (15) connects in line water pipe, and the water outlet of described reverse osmosis system (16) connects reuse water pipe.
2. tannery wastewater treatment system according to claim 1, is characterized in that: described first sbr reactor pond (13) and the second sbr reactor pond (23) separately configure or be jointly configured with dosing tank and aerating apparatus.
3. tannery wastewater treatment system according to claim 2, is characterized in that: described dosing tank comprises FeCl
2, HCl dosing tank, NaOH dosing tank, PAM dosing tank.
4. tannery wastewater treatment system according to claim 1, is characterized in that: be provided with the first lift pump (14) between described preliminary sedimentation tank (12) and the first sbr reactor pond (13), and described first sbr reactor pond (13) is preset with high liquid level.
5. tannery wastewater treatment system according to claim 1, is characterized in that: be provided with the second lift pump (24) between described scratch pool (22) and the second sbr reactor pond (23), and described second sbr reactor pond (23) is preset with high liquid level.
6. tannery wastewater treatment system according to claim 1, is characterized in that: be provided with header tank (17) before described biological micro-electrolysis pond (4), nanofiltration system (15) or reverse osmosis system (16).
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| CN201420805137.XU CN204356201U (en) | 2014-12-19 | 2014-12-19 | A kind of tannery wastewater treatment system |
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| CN201420805137.XU CN204356201U (en) | 2014-12-19 | 2014-12-19 | A kind of tannery wastewater treatment system |
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| CN204356201U true CN204356201U (en) | 2015-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117983409A (en) * | 2024-04-02 | 2024-05-07 | 中国矿业大学(北京) | Inhibitor and preparation method thereof, and separation method of jamesonite and pyrite |
-
2014
- 2014-12-19 CN CN201420805137.XU patent/CN204356201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117983409A (en) * | 2024-04-02 | 2024-05-07 | 中国矿业大学(北京) | Inhibitor and preparation method thereof, and separation method of jamesonite and pyrite |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170811 Address after: Jiangyin city streets east of golden hill road 214437 Jiangsu city of Wuxi province No. 201 Industrial Park Powerise Cyberport B building two floor Southeast Patentee after: Ye Chen Jiangsu Environmental Protection Technology Co. Ltd Address before: Jiangyin city streets east of golden hill road 214434 Jiangsu city of Wuxi Province, No. 201 (Yangtze River Science & technology enterprise accelerator Powerise Industrial Park B Building Room 201) Patentee before: Jiangyin Yechen Ecology Science & Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20201219 |