CN211814023U - Bean product wastewater treatment system - Google Patents
Bean product wastewater treatment system Download PDFInfo
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- CN211814023U CN211814023U CN202020199286.1U CN202020199286U CN211814023U CN 211814023 U CN211814023 U CN 211814023U CN 202020199286 U CN202020199286 U CN 202020199286U CN 211814023 U CN211814023 U CN 211814023U
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- 244000046052 Phaseolus vulgaris Species 0.000 title claims abstract description 18
- 235000010627 Phaseolus vulgaris Nutrition 0.000 title claims abstract description 18
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000002351 wastewater Substances 0.000 claims abstract description 34
- 238000005345 coagulation Methods 0.000 claims abstract description 29
- 230000015271 coagulation Effects 0.000 claims abstract description 29
- 239000010802 sludge Substances 0.000 claims abstract description 29
- 238000005273 aeration Methods 0.000 claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 17
- 238000005188 flotation Methods 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 239000003344 environmental pollutant Substances 0.000 claims description 7
- 231100000719 pollutant Toxicity 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000000593 degrading effect Effects 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 244000068988 Glycine max Species 0.000 claims 4
- 235000010469 Glycine max Nutrition 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 6
- 239000005416 organic matter Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 102000004169 proteins and genes Human genes 0.000 abstract description 2
- 108090000623 proteins and genes Proteins 0.000 abstract description 2
- 238000012876 topography Methods 0.000 abstract description 2
- 230000008719 thickening Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 13
- 238000007667 floating Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 244000005700 microbiome Species 0.000 description 9
- 239000002893 slag Substances 0.000 description 9
- 239000010865 sewage Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
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- 239000007789 gas Substances 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 210000000805 cytoplasm Anatomy 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
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- 238000009933 burial Methods 0.000 description 1
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Abstract
The utility model discloses a bean products effluent disposal system, including the grid pond that is equipped with the grid, aeration tank, coagulation air supporting pond, scum groove, sludge thickening tank, equalizing basin, IC tower, the biochemical pond of anaerobism, good oxygen biochemical pond and MBR membrane cisterna. The utility model discloses a bean products waste water treatment process stable, to handling bean products waste water or similar high protein, the high waste water treatment of organic matter concentration content has the purifying effect of ideal, equipment utilizes rivers and topography discrepancy in elevation scientific and reasonable to set up and buries deeply, on can making the water reach the basis of anticipating the water standard, has practiced thrift engineering construction investment and running cost.
Description
Technical Field
The utility model relates to a water treatment technical field, more specifically relate to a bean products effluent disposal system.
Background
The food processing industry plays an important role in national economy and is an indispensable important industry related to national civilization. However, the pollution problem of food processing wastewater is becoming more serious, and especially, the pollution problem to the surrounding environment is serious, which is a prominent problem affecting the environmental quality of surrounding residents, because the wastewater generated in the processing of bean products is large in production amount, high in nutrition, high in organic matter and suspended matter concentration, complex in components, good in biodegradability, and high in treatment difficulty.
The water temperature of the high-concentration yellow serofluid discharged in the bean product production is higher, the pH value of the yellow serofluid is about 5 generally when the yellow serofluid reaches the grid pond, the yellow serofluid is putrefactive and acidified, an oil-containing scum layer is easily generated on the surface of the wastewater under the anaerobic condition, and the yellow serofluid also contains a large amount of soluble organic matters. The biochemical property of the bean product wastewater is very good, most of pollutants in the wastewater are degradable organic matters, the biochemical property reaches 0.6-0.7, and C in the wastewater: n: p is 100: 4.7: 0.7 on average, is suitable for the growth of microorganisms and is very suitable for being treated by a biochemical treatment process.
At present, the existing wastewater treatment device has the disadvantages of large investment of process engineering, high running cost and inconvenient operation. Therefore, a scheme design which is practical, mature in process and low in investment and operation cost needs to be selected, and meanwhile, the effluent water reaches the first grade A standard of the national urban sewage plant comprehensive discharge standard (GB 18978-2002).
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a bean product wastewater treatment system to solve the big and running cost height problem of process engineering investment that effluent treatment plant exists, further reduce engineering construction investment and running cost.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A bean product wastewater treatment system comprises a grid tank provided with two grids, wherein the grid tank is connected with a pre-aeration tank which is used for homogenizing water quality and avoiding the influence of impact load on biochemical treatment, the pre-aeration tank is communicated with a coagulation air floatation tank which enables pollutants to form scum through a pipeline, and the coagulation air floatation tank is respectively communicated with a scum groove used for storing the scum, a sludge concentration tank used for treating the scum and residual activated sludge in the coagulation air floatation tank and a regulating tank used for accommodating wastewater treated by the coagulation air floatation tank through pipelines; the water outlet end of the adjusting tank is communicated with waste through a pipelineAn IC tower for further purifying water, an anaerobic biochemical pool for degrading organic substances and COD and BOD, wherein the water outlet end of the IC tower is connected with the anaerobic biochemical pool via pipeline5And the aerobic biochemical tank is communicated with and fixed on the membrane frame and is used for carrying out the MBR membrane tank for the deepening treatment.
Further optimizing the technical scheme, a water outlet pipe for automatically flowing the wastewater into the pre-aeration tank is arranged at the upper middle position of the grid tank.
Further optimize technical scheme, the internal portion of air supporting pond that thoughtlessly congeals is equipped with the air supporting machine that can produce the microbubble and be used for adhesion density to be close the pollutant of water, is equipped with the scum board that is used for striking off the dross in air supporting machine top, the air supporting pond that thoughtlessly congeals.
Further optimizing the technical scheme, the discharge pipeline of the scum groove is communicated with a plate and frame filter press for carrying out filter pressing on the sludge.
Further optimize technical scheme, the discharge pipeline of mud thickener communicates and is used for carrying out the plate and frame filter press of filter-pressing to mud.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model provides a bean products effluent disposal system adopts the main part technology that process flow is "grid + preaeration pond + coagulation air supporting + equalizing basin + IC tower + anaerobism biochemical pond + good oxygen biochemical pond + MBR membrane cisterna", and wherein the IC tower has very big height-diameter ratio, and height-diameter ratio reaches 4-8, and the height of reactor is 16-25 meters. The wastewater treatment system effectively utilizes water flow and terrain elevation difference to scientifically and reasonably set the equipment burial depth, and reduces the engineering construction investment and the operation cost.
Drawings
Fig. 1 is a plan view of the present invention;
FIG. 2 is a process flow diagram of the present invention;
wherein: 1. the system comprises a grating tank, a pre-aeration tank, a coagulation air floatation tank, a scum tank, a 6 regulating tank, a 7 sludge concentration tank, a 8 screw pump, a 81 plate-and-frame filter press, a 9 IC tower, a 10 anaerobic biochemical tank, a 11 aerobic biochemical tank, a 12 MBR membrane tank.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A bean product wastewater treatment system is shown in figure 1 and comprises a grating tank 1, a pre-aeration tank 2, a coagulation air flotation tank 4, a scum tank 5, an adjusting tank 6, a sludge concentration tank 7, a screw pump 8, a plate-and-frame filter press 81, an IC tower 9, an anaerobic biochemical tank 10, an aerobic biochemical tank 11 and an MBR membrane tank 12.
The grid pond 1 is provided with two grids made of stainless steel materials, and the grids are used for removing coarse floating, suspended matters and floating slag. The upper middle position of the grid pond 1 is provided with a water outlet pipe for the wastewater to automatically flow into the pre-aeration tank 2. Grid 1 connects aeration tank 2 in advance, is equipped with perforation aeration equipment in aeration tank 2 in advance, and the uneven situation of adaptation waste water production water quality of water quality that can be fine plays the effect of buffering water yield, even quality of water to avoid impact load to produce the influence to other processings. The water outlet pipeline of the pre-aeration tank 2 is connected with the coagulation air flotation tank 4, and the water outlet pipeline is provided with a lift pump for introducing the wastewater into the coagulation air flotation tank 4.
An air flotation machine is arranged in the coagulation air flotation tank 4, the air flotation machine can generate a large amount of micro bubbles, the adhesion density of the micro bubbles is close to that of solid or liquid pollutants of water, an air floating body with the density smaller than that of the water is formed, and a flocculating constituent generated by coagulation reaction floats to the water surface under the action of buoyancy to form floating slag.
The top of coagulating air supporting pond 4 is equipped with the scum board, and the scum board is reciprocating motion in coagulating pond top horizontal direction, scrapes the dross into scum groove 5, and the discharge pipe intercommunication plate and frame filter press 81 in scum groove 5 for collect the dross.
The coagulation air flotation tank 4 is also respectively communicated with an adjusting tank 6 and a sludge concentration tank 7, clear water treated by the coagulation air flotation tank 4 is discharged from the coagulation air flotation tank 4 to the adjusting tank 6, scum and residual activated sludge in the coagulation air flotation tank 4 are pumped to the sludge concentration tank 7 through a pipeline or a sludge pump, and supernatant of the sludge concentration tank 7 automatically flows back to the adjusting tank 6.
The effluent enters an adjusting tank 6 after being treated by a coagulation air flotation tank 4, so that the uniformity and the quantity of the stored bean product wastewater are adjusted, and the stability of a sewage treatment system is ensured.
The sludge concentration tank 7 is communicated with a plate-and-frame filter press 81 through a pipeline, a screw pump 8 is arranged between the sludge concentration tank 7 and the plate-and-frame filter press 81, and the screw pump 8 pumps the concentrated sludge to the plate-and-frame filter press 81 for filter pressing.
The adjusting tank 6 is communicated with the IC tower 9 through a pipeline, a lifting pump is arranged on the pipeline, and the sewage at the middle upper part of the adjusting tank 6 is lifted to the IC tower 9 for further purification treatment. The utility model discloses in, IC tower 9 adopts IC tower inner loop reactor for carry out purification treatment to the waste water of following 6 exports of equalizing basin. The sewage outlet at the bottom of the IC tower 9 is connected with the sludge concentration tank 7 through a pipeline.
The water outlet of the IC tower 9 is connected with an anaerobic biochemical tank 10 through a pipeline, and in the anaerobic biochemical tank 10, microorganisms mainly anaerobic microorganisms carry out primary decomposition on organic matters in the wastewater under the anoxic condition to reduce partial COD and BOD5While being able to trap a portion of SS.
The anaerobic biochemical tank 10 is communicated with the aerobic biochemical tank 11 through a pipeline, and COD and BOD are carried out under the oxygen supply state5Further degradation of (2). The combined action of anaerobic biochemistry and aerobic biochemistry can also remove nitrogen and phosphorus.
The water outlet of the aerobic biochemical tank 11 is communicated with an MBR membrane tank 12, and an MBR membrane group is fixedly arranged on a membrane frame and is immersed in water. The clear effluent of the aerobic biochemical tank 11 is filtered, purified and deepened by an MBR membrane tank 12 and then recycled or discharged into a municipal pipe network.
When the utility model is in actual operation, the bean product wastewater is firstly removed with coarse floating, suspended matters and floating slag by two stainless steel grids in the grid tank 1, and then automatically flows into the pre-aeration tank 2 through the water outlet pipe at the upper middle position of the grid tank 1; the perforation aeration device in the pre-aeration tank 2 can well adapt to the condition of uneven water quality in wastewater production, and well play the roles of buffering water quantity and uniform water quality so as to avoid the influence of impact load on biochemical treatment.
Introducing water in the pre-aeration tank 2 into a coagulation air-flotation tank 4 by a lift pump, adding alkali into the coagulation air-flotation tank 4 to adjust the pH value of the wastewater to 7.5-8.5, and adding a coagulant and a coagulant aid to ensure that organic matters soluble in the water and particles difficult to precipitate collide, gather and destabilize in the water under a double electric layer compressor; the chain-shaped high molecular polymer is hydrolyzed and polycondensed under the action of electrostatic attraction, van der waals force and hydrogen bond force of adsorption bridge-erecting machine to form flocs which can be mutually polymerized, have linear structure, can be strongly adsorbed by colloid and can be adsorbed between two colloidal particles to form bridge, and the particles of the chain-shaped high molecular polymer are increasingly larger to form coarse flocs. An air flotation machine in the coagulation air flotation tank 4 generates a large amount of micro bubbles, the micro bubbles are adhered to solid or liquid pollutants with the density close to water to form an air floating body with the density smaller than that of the water, the flocculating body floats to the water surface under the action of buoyancy to form floating slag, a slag scraping plate reciprocates to scrape the floating slag to a floating slag groove 5, and the floating slag is discharged to a plate-and-frame filter press 81 from a discharge pipeline of the floating slag groove 5, so that the aim of solid-liquid separation is fulfilled; clear water is discharged from the air flotation tank to the adjusting tank 6. Scum and residual activated sludge in the coagulation air flotation tank 4 are conveyed to a sludge concentration tank 7 through a pipeline, and supernatant in the sludge concentration tank 7 automatically flows back to an adjusting tank 6. The sludge concentrated by the sludge concentration tank 7 is pumped to a plate-and-frame filter press 81 by a screw pump 8 for filter pressing treatment.
The wastewater treated by the coagulation air flotation tank 4 enters an adjusting tank 6, the volume of the adjusting tank 6 is set to be larger, and the retention time can reach 16 hours; because the change of the wastewater water volume discharged in production is very big along with the time, the water volume is far greater than the water displacement at night in the daytime, and the time condition of uneven water quality in different time periods, the regulating tank 6 with larger volume is designed to fully play the regulating role of uniform and uniform volume, thereby ensuring that the sewage treatment system can operate stably, uniformly and continuously for 24 hours.
And a sewage lifting pump in the regulating pool 6 lifts the sewage at the middle upper part of the regulating pool 6 to the IC tower 9 for further purification treatment. According to the actual conditions of higher concentration and good biodegradability of organic pollutants in the bean product wastewater, the IC tower 9 internal circulation reactor is selected by combining the comprehensive comparison of the practical operation cases of the IC tower 9 at home and abroad. When the reactor is used for treating high-concentration wastewater with COD concentration of 10-20 g/l and the retention time is 4-5 hours, the water inlet load of the reactor is generally 35-50 kgCOD/(m)3D). The IC tower 9 has a large height-diameter ratio which is generally 4-8, and the height of the reactor is 16-25 m.
The wastewater in the regulating tank 6 is lifted to a first anaerobic reaction chamber at the bottom of the IC tower 9 by a lifting pump to be uniformly mixed with sludge particles, most organic matters in the wastewater are oxidized into methane, the mixed liquid in the first anaerobic reaction chamber is lifted to a gas-liquid separator at the top of the reactor, and the separated methane is discharged along a discharge pipe; the separated mud-water mixed liquid returns to the first reaction chamber along the return pipe and is fully mixed with the granular sludge and the inlet water at the bottom, and the internal circulation of the first reaction chamber is completed.
The waste water treated by the first anaerobic reaction chamber automatically enters a second anaerobic reaction chamber, the residual organic matters in the waste water can be further degraded and purified by sludge particles in the second anaerobic reaction chamber, the reacted gas and liquid enter a gas-liquid separator through a gas collecting pipe, and the generated biogas is collected by a gas collecting hood of the second reaction chamber; the mud-water mixture enters a settling area for solid-liquid separation, the treated supernatant is discharged by a discharge pipe, and the settled sludge can automatically return to the second anaerobic reaction chamber.
The effluent of the IC tower 9 automatically flows into an anaerobic biochemical tank 10, and at the moment, various organic matters exist in the wastewater, mainly colloidal and dissolved organic matters. These organic substances are taken up by microorganisms mainly composed of anaerobic microorganisms, and energy is released step by step, so that the organic substances are finally made harmless. On the one hand, the organic matter can provide the energy required by the life activities of the microorganisms, the microorganisms decompose the organic matter through new metabolic activities, and finally the organic matter is stabilized in a harmless inorganic matter form. On the other hand, organic substances are transformed by microorganisms and synthesized as a new protoplasm (or cytoplasm) component for the microorganisms to grow and reproduce themselves.
The anaerobic treatment carries out primary decomposition on organic matters to reduce partial COD and BOD5While being able to trap a portion of SS. Then the wastewater enters an aerobic biochemical tank 11 for COD and BOD under the state of oxygen supply5Further degradation of (2). The combined action of anaerobic biochemistry and aerobic biochemistry has the functions of denitrification and dephosphorization. The clear effluent of the aerobic biochemical tank 11 enters an MBR membrane tank 12, and is subjected to filtration, purification and deepening treatment by an MBR membrane group which is fixedly arranged on a membrane frame and is immersed in water in the MBR membrane tank 12. Finally, the finished water is treatedCan be recycled or discharged into municipal pipe networks.
The utility model has the main process of 'grating + pre-aeration tank + coagulation air flotation + adjusting tank + IC tower + anaerobic biochemical tank + aerobic biochemical tank + MBR membrane tank', and has ideal purification effect on bean product wastewater or wastewater with similar high protein and high organic matter concentration content, so that the effluent reaches the first-level A standard of the national urban sewage plant integrated wastewater discharge standard (GB 18978-2002); the utility model discloses effectively utilize rivers and topography discrepancy scientific and reasonable to set up equipment buried depth, reduced engineering construction investment and running cost.
Claims (5)
1. The bean product wastewater treatment system is characterized by comprising a grid tank (1) provided with two grids, wherein the grid tank (1) is connected with a pre-aeration tank (2) which is used for homogenizing water quality and avoiding the influence of impact load on biochemical treatment, the pre-aeration tank (2) is communicated with a coagulation air flotation tank (4) which enables pollutants to form scum through a pipeline, and the coagulation air flotation tank (4) is respectively communicated with a scum tank (5) which is used for storing the scum, a sludge concentration tank (7) which is used for treating the scum of the coagulation air flotation tank (4) and residual active sludge and a regulating tank (6) which is used for containing wastewater treated by the coagulation air flotation tank (4) through pipelines; the water outlet end of the adjusting tank (6) is communicated with an IC tower (9) for further purifying wastewater through a pipeline, the water outlet end of the IC tower (9) is communicated with an anaerobic biochemical tank (10) for degrading organic matters through a pipeline, and the water outlet end of the anaerobic biochemical tank (10) is communicated with COD and BOD through a pipeline5The aerobic biochemical tank (11) is used for further degradation, and the aerobic biochemical tank (11) is communicated with an MBR membrane tank (12) which is fixed on the membrane frame and is used for carrying out deepening treatment.
2. The soybean wastewater treatment system according to claim 1, wherein: a water outlet pipe for the wastewater to automatically flow into the pre-aeration tank (2) is arranged at the upper middle position of the grid tank (1).
3. The soybean wastewater treatment system according to claim 1, wherein: the coagulation air floatation tank (4) is internally provided with an air floatation machine which can generate micro bubbles for adhering pollutants with density close to water, and a scum board for scraping scum is arranged above the air floatation machine and in the coagulation air floatation tank (4).
4. The soybean wastewater treatment system according to claim 1, wherein: and the discharge pipeline of the scum trough (5) is communicated with a plate-and-frame filter press (81) for carrying out filter pressing on sludge.
5. The soybean wastewater treatment system according to claim 1, wherein: and the discharge pipeline of the sludge concentration tank (7) is communicated with a plate-and-frame filter press (81) for carrying out filter pressing on the sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020199286.1U CN211814023U (en) | 2020-02-24 | 2020-02-24 | Bean product wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020199286.1U CN211814023U (en) | 2020-02-24 | 2020-02-24 | Bean product wastewater treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN211814023U true CN211814023U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020199286.1U Active CN211814023U (en) | 2020-02-24 | 2020-02-24 | Bean product wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211814023U (en) |
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2020
- 2020-02-24 CN CN202020199286.1U patent/CN211814023U/en active Active
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Address after: 072750 No.7 Fuxing Road, Huailin village, Qingliangsi office, Zhuozhou City, Baoding City, Hebei Province Patentee after: Heyuan environmental protection technology Hebei Co.,Ltd. Address before: 072750 No.7 Fuxing Road, Huailin village, Qingliangsi office, Zhuozhou City, Baoding City, Hebei Province Patentee before: Zhuozhou Heyuan Environmental Protection Engineering Co., Ltd |
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Address after: 072750 s12-101, shizicheng South District, Tengfei South Street, Zhuozhou City, Baoding City, Hebei Province Patentee after: Heyuan environmental protection technology Hebei Co.,Ltd. Address before: 072750 No.7 Fuxing Road, Huailin village, Qingliangsi office, Zhuozhou City, Baoding City, Hebei Province Patentee before: Heyuan environmental protection technology Hebei Co.,Ltd. |
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