CN110563281A - Organic wastewater treatment system is used in glass fiber cloth production - Google Patents
Organic wastewater treatment system is used in glass fiber cloth production Download PDFInfo
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- CN110563281A CN110563281A CN201910954145.8A CN201910954145A CN110563281A CN 110563281 A CN110563281 A CN 110563281A CN 201910954145 A CN201910954145 A CN 201910954145A CN 110563281 A CN110563281 A CN 110563281A
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- sedimentation tank
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- 239000004744 fabric Substances 0.000 title claims abstract description 19
- 239000003365 glass fiber Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 82
- 238000004062 sedimentation Methods 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 230000020477 pH reduction Effects 0.000 claims abstract description 30
- 230000007062 hydrolysis Effects 0.000 claims abstract description 28
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000007790 scraping Methods 0.000 claims abstract description 5
- 230000001112 coagulating effect Effects 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 14
- 239000003814 drug Substances 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims description 4
- 238000005345 coagulation Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 description 21
- 208000028659 discharge Diseases 0.000 description 18
- 238000000034 method Methods 0.000 description 12
- 239000010865 sewage Substances 0.000 description 8
- 238000004064 recycling Methods 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an organic wastewater treatment system for glass fiber cloth production, which relates to the field of wastewater treatment and comprises a grid water collecting well, an adjusting tank, a solid-liquid separator, a hydrolysis acidification tank, an anoxic/aerobic tank, a final sedimentation tank and a discharge water tank which are sequentially connected through pipelines, wherein the solid-liquid separator comprises a shell, a slag discharge tank is arranged on one side of the shell, and a scraper device for scraping liquid level suspended matters into the slag discharge tank is arranged above the shell; the anoxic/aerobic tank is divided into a first-stage anoxic/aerobic tank and a second-stage anoxic/aerobic tank, and a middle sedimentation tank is arranged between the first-stage anoxic/aerobic tank and the second-stage anoxic/aerobic tank; the sludge discharge ports at the bottoms of the slag discharge tank and the final sedimentation tank are connected with a sludge concentration tank, and the sludge concentration tank, a sludge dewatering machine room and a sludge outward conveying pipeline are sequentially connected; concentrated solution outlets of the sludge concentration tank and the sludge dewatering machine room are connected with the regulating tank; the sludge discharge port at the bottom of the intermediate sedimentation tank is connected with the hydrolysis acidification tank. The invention has more stable, efficient and durable treatment effect and low operation cost.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to an organic wastewater treatment system for glass fiber cloth production.
Background
The glass fiber cloth has good ultraviolet-proof and anti-static functions, high strength, high corrosion resistance, good light transmittance and good insulativity, and is widely applied to the industries of traffic, buildings, petrochemical industry and machinery. The production of glass fiber cloth can produce a large amount of organic wastewater, the production wastewater has the characteristics of high suspended matter content, high COD (chemical oxygen demand), deep chromaticity, difficult biochemical degradation treatment and the like, and the conventional air floatation method is usually adopted to remove the wastewater aiming at the fiber-containing cloth, but the common air floatation air dissolving equipment has the problems of complicated equipment, large occupied area, high equipment manufacturing cost and the like.
In addition, because the waste water produced in the process of producing the glass fiber cloth by manufacturers is not only printing and dyeing waste water, but also waste water produced by other supporting facilities, if the waste water produced by the supporting facilities is not treated before being discharged, high-concentration soluble inorganic salt and refractory toxic organic matters in the waste water can cause serious environmental pollution and damage to soil, surface water and underground water. On the other hand, because the types of the waste water are different, the treatment needs to be matched with different waste water treatment processes, so that the investment/operation cost is increased, an overlarge occupied area is occupied, and the defects of long total retention time, complex operation management and unstable treatment effect exist.
Disclosure of Invention
The invention aims to overcome the defects of the technology and provide the organic wastewater treatment system for glass fiber cloth production, which has good treatment efficiency and stable operation, so that organic wastewater in the glass fiber cloth production process is treated by a simpler and more efficient method, the effluent quality and the operation efficiency are improved, and the energy consumption is saved.
In order to achieve the purpose, the invention adopts the technical scheme that: an organic wastewater treatment system for glass fiber cloth production comprises a grid water collecting well, an adjusting tank, a solid-liquid separator, a hydrolysis acidification tank, an anoxic/aerobic tank, a final sedimentation tank and a discharge water tank, and is characterized in that the grid water collecting well, the adjusting tank, the solid-liquid separator, the hydrolysis acidification tank, the anoxic/aerobic tank, the final sedimentation tank and the discharge water tank are sequentially connected through pipelines; the solid-liquid separator comprises a shell, a stirrer is arranged in the shell, a microporous aerator is arranged at the bottom of the shell, a slag discharging pool is arranged on one side of the shell, a scraper device for scraping liquid level suspended matters into the slag discharging pool is arranged above the shell, and a dosing device I is additionally arranged above the shell; the anoxic/aerobic tank is divided into a first-stage anoxic/aerobic tank and a second-stage anoxic/aerobic tank, the anoxic tank in the first-stage anoxic/aerobic tank is connected with the hydrolysis acidification tank through a pipeline in front, the aerobic tank in the second-stage anoxic/aerobic tank is connected with the final sedimentation tank through a pipeline in back, a middle sedimentation tank is arranged between the first-stage anoxic/aerobic tank and the second-stage anoxic/aerobic tank, and the middle sedimentation tank is respectively connected with the aerobic tank in the first-stage anoxic/aerobic tank and the anoxic tank in the second-stage anoxic/aerobic tank through pipelines; the sludge discharge ports at the bottoms of the slag discharge tank and the final sedimentation tank are connected with a sludge concentration tank through pipelines, and the sludge concentration tank, the sludge dewatering machine room and the sludge outward conveying pipeline are sequentially connected through pipelines; the sludge concentration tank and the concentrated solution outlet of the sludge dewatering machine room are connected with the regulating tank through pipelines; and a sludge discharge port at the bottom of the intermediate sedimentation tank is connected with the hydrolysis acidification tank through a pipeline.
The sewage flows through a grid collecting well, an adjusting tank, a solid-liquid separator, a hydrolysis acidification tank, a primary anoxic/aerobic tank, a middle sedimentation tank, a secondary anoxic/aerobic tank and a final sedimentation tank in sequence, and then enters a discharge water tank for discharge; the suspended matters floating on the liquid surface in the solid-liquid separator are scraped into a slag discharging pool through a scraper device; conveying sludge at the bottoms of the sludge discharge tank and the final sedimentation tank to a sludge concentration tank through a pipeline for concentration treatment, then conveying the sludge into a sludge dewatering machine room for dewatering treatment, and finally discharging the sludge to a sludge outward transportation pipeline; the sludge is treated by a sludge concentration tank and a sludge dewatering machine room to generate concentrated liquid which flows back to the regulating tank, and sludge discharged from the bottom of the intermediate sedimentation tank flows back to the hydrolysis acidification tank through a pipeline.
Furthermore, a coagulating sedimentation tank, an intermediate water tank, an MBR tank and a reuse water tank are additionally arranged behind the final sedimentation tank, and the final sedimentation tank, the coagulating sedimentation tank, the intermediate water tank, the MBR tank and the reuse water tank are sequentially connected through pipelines; coagulating sedimentation tank top is equipped with charge device II, coagulating sedimentation tank's bottom sludge discharge mouth passes through the oxygen deficiency pond in the pipe connection second grade oxygen deficiency/good oxygen pond, sewage after final sedimentation tank sedimentation treatment flows through coagulating sedimentation tank in proper order again, middle pond, the MBR pond is handled the back, get into reuse water tank recycle, coagulating sedimentation tank's bottom sludge discharge passes through the pipeline and flows back to the oxygen deficiency pond in the second grade oxygen deficiency/good oxygen pond, through follow-up degree of depth processing, make the play water satisfy the quality of water requirement of the interior production reuse water of factory, reach water economy resource and water resource cyclic utilization's purpose.
Furthermore, the dosing device I and the dosing device II are both one or a combination of pac and pam.
Furthermore, water pumps are arranged on connecting pipelines at water inlets of the regulating tank, the solid-liquid separator, the hydrolysis acidification tank, the anoxic/aerobic tank, the intermediate sedimentation tank, the final sedimentation tank, the discharge water tank, the coagulating sedimentation tank, the intermediate water tank, the MBR tank and the reuse water tank; and the sludge pump is arranged on the connecting pipeline at the sludge inlet of the sludge concentration tank, the sludge dewatering machine room, the hydrolysis acidification tank and the secondary anoxic/aerobic tank.
The invention has the beneficial effects that: the system has more stable treatment effect on organic wastewater generated in glass fiber cloth production, is efficient and durable, is low in operation cost, can realize resource utilization of activated sludge and the like in the operation process, removes impurities (extremely light glass fiber cloth fragments) which are difficult to precipitate by a conventional precipitation method through solid-liquid separation, converts wastewater macromolecular substances into micromolecule easily-degradable organic matters through hydrolytic acidification, removes most pollutants in the wastewater through a two-stage anoxic aerobic process, can meet the discharge requirement, and achieves the purpose of recycling through an MBR membrane advanced treatment process.
Drawings
FIG. 1 is an organizational flowchart of the present invention.
FIG. 2 is a schematic view of the structure of a solid-liquid separator of the present invention.
FIG. 3 is a schematic structural diagram of the coagulating sedimentation tank of the invention.
In the figure: the system comprises a grating water collecting well 1, an adjusting tank 2, a solid-liquid separator 3, a slag discharging tank 4, a hydrolysis acidification tank 5, a primary anoxic/aerobic tank 6, a middle sedimentation tank 7, a secondary anoxic/aerobic tank 8, a final sedimentation tank 9, a discharge water tank 10, a sludge concentration tank 11, a sludge dewatering machine room 12, a sludge outward transportation pipeline 13, a coagulation sedimentation tank 14, a middle water tank 15, an MBR tank 16, a reuse water tank 17, a shell 31, a stirrer 32, a microporous aerator 33, a scraper device 34, a dosing device I35 and a dosing device II 141.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1-3, an organic wastewater treatment system for glass fiber cloth production comprises a grid water collecting well 1, an adjusting tank 2, a solid-liquid separator 3, a hydrolysis acidification tank 5, an anoxic/aerobic tank, a final sedimentation tank 9 and a discharge water tank 10, and is characterized in that the grid water collecting well 1, the adjusting tank 2, the solid-liquid separator 3, the hydrolysis acidification tank 5, the anoxic/aerobic tank, the final sedimentation tank 9 and the discharge water tank 10 are sequentially connected by pipelines; the solid-liquid separator 3 comprises a shell 31, a stirrer 32 is arranged in the shell 31, a microporous aerator 33 is arranged at the bottom of the shell 31, a slag discharging pool 4 is arranged at one side of the shell 31, a scraper device 34 for scraping liquid level suspended matters into the slag discharging pool 4 is arranged above the shell 31, and a medicine adding device I35 is additionally arranged above the shell 31; the anoxic/aerobic tank is divided into a first-stage anoxic/aerobic tank 6 and a second-stage anoxic/aerobic tank 8, the anoxic tank in the first-stage anoxic/aerobic tank 6 is connected with the hydrolytic acidification tank 5 through a pipeline in front, the aerobic tank in the second-stage anoxic/aerobic tank 8 is connected with the final sedimentation tank 9 through a pipeline in back, a middle sedimentation tank 7 is arranged between the first-stage anoxic/aerobic tank 6 and the second-stage anoxic/aerobic tank 8, and the middle sedimentation tank 7 is respectively connected with the aerobic tank in the first-stage anoxic/aerobic tank 6 and the anoxic tank in the second-stage anoxic/aerobic tank 8 through pipelines; the sludge discharging ports at the bottoms of the slag discharging pool 4 and the final sedimentation pool 9 are connected with a sludge concentration pool 11 through pipelines, and the sludge concentration pool 11, a sludge dewatering machine room 12 and a sludge outward conveying pipeline 13 are sequentially connected through pipelines; the sludge concentration tank 11 and the concentrated solution outlet of the sludge dewatering machine room 12 are connected with the adjusting tank 2 through pipelines; and a sludge discharge port at the bottom of the intermediate sedimentation tank 7 is connected with the hydrolysis acidification tank 5 through a pipeline.
A coagulating sedimentation tank 14, an intermediate water tank 15, an MBR tank 16 and a reuse water tank 17 are additionally arranged behind the final sedimentation tank 9, and the final sedimentation tank 9, the coagulating sedimentation tank 14, the intermediate water tank 15, the MBR tank 16 and the reuse water tank 17 are sequentially connected through pipelines; a dosing device II 141 is arranged above the coagulating sedimentation tank 14, and a sludge discharge port at the bottom of the coagulating sedimentation tank 14 is connected with an anoxic tank in the secondary anoxic/aerobic tank 8 through a pipeline.
The dosing device I35 and the dosing device II 141 are both one or a combination of pac and pam.
Wherein, the regulating tank 2, the solid-liquid separator 3, the hydrolysis acidification tank 5, the anoxic/aerobic tank, the intermediate sedimentation tank 7, the final sedimentation tank 9, the discharge water tank 10, the coagulation sedimentation tank 14, the intermediate water tank 15, the MBR tank 16 and the reuse water tank 17 are all provided with water pumps at the water inlets; and mud pumps are arranged on connecting pipelines at sludge inlets of the sludge concentration tank 11, the sludge dewatering machine room 12, the hydrolysis acidification tank 5 and the secondary anoxic/aerobic tank 8.
The sewage flows through a grid water collecting well 1, an adjusting tank 2, a solid-liquid separator 3, a hydrolysis acidification tank 5, a primary anoxic/aerobic tank 6, a middle sedimentation tank 7, a secondary anoxic/aerobic tank 8 and a final sedimentation tank 9 in sequence, and then enters a discharge water tank 10 for discharge; the suspended matters floating on the liquid surface in the solid-liquid separator 3 are scraped into the slag discharging pool 4 through a scraper device 34; the sludge discharged from the bottom of the slag discharging pool 4 and the final sedimentation pool 9 is conveyed to a sludge concentration pool 11 through pipelines for concentration treatment, then is conveyed to a sludge dewatering machine room 12 for dewatering treatment, and finally is discharged to a sludge outward conveying pipeline 13; the sludge is treated by a sludge concentration tank 11 and a sludge dewatering machine room 12 to generate concentrated solution which flows back to the regulating tank 2, and the sludge discharged from the bottom of the intermediate sedimentation tank 7 flows back to the hydrolysis acidification tank 5 through a pipeline. If the sewage precipitated in the final sedimentation tank 9 is not discharged but recycled, the sewage precipitated in the final sedimentation tank 9 sequentially flows through the coagulating sedimentation tank 14, the intermediate water tank 15 and the MBR tank 16 for treatment and then enters the recycling water tank 17 for recycling, the sludge discharged from the bottom of the coagulating sedimentation tank 14 flows back to the anoxic tank in the second-stage anoxic/aerobic tank 8 through a pipeline, and the effluent meets the water quality requirement of recycled water produced in a plant through subsequent advanced treatment, so that the purposes of saving water resources and recycling water resources are achieved.
The working principle is as follows: the method comprises the steps of filtering large impurities from glass fiber cloth organic wastewater through a grid water collecting well 1, adjusting the organic wastewater through an adjusting tank 2, then enabling the organic wastewater to enter a solid-liquid separator 3, adding a medicament into the solid-liquid separator 3, inflating and stirring the medicament to enable the separated specific gravity in the wastewater to be closer to that of water and suspended matters difficult to precipitate to float upwards, scraping the suspended matters into a deslagging tank 4, enabling the residual wastewater to enter a hydrolysis acidification tank 5, hydrolyzing macromolecular organic matters, polysaccharide and protein in the wastewater into micromolecular organic matters, monosaccharides and other substances, then carrying out a second-stage anoxic aerobic process, mainly removing most organic matters and ammonia nitrogen in the wastewater through first-stage nitrification and denitrification, mainly removing total nitrogen in the wastewater through second-stage anoxic aerobic process, thereby removing most pollutants, then carrying out sludge-water separation in a final sedimentation tank 9, and making the.
For the purpose of recycling, the sewage after mud-water separation in the final sedimentation tank 9 enters a coagulating sedimentation tank 14, an intermediate water tank 15 and an MBR tank 16 for treatment, and pollutants in the sewage are further removed, so that the effluent meets the water quality requirement of the recycled water produced in the factory.
In the sewage treatment process, a part of activated sludge in the hydrolysis acidification tank 5 flows to the intermediate sedimentation tank 7 along with water flow for sedimentation, so that the sludge at the bottom of the intermediate sedimentation tank 7 continuously flows back to the hydrolysis acidification tank 5 under the action of a slurry pump, and the treatment effect of the hydrolysis acidification tank 5 is ensured; the precipitated sludge in the coagulation sedimentation tank 14 is continuously returned to the anoxic tank in the secondary anoxic/aerobic tank 8, so that the anoxic effect is improved, and the resource utilization is realized; sludge at the bottoms of the slag discharging tank 4 and the final sedimentation tank 9 is periodically sent to a sludge concentration tank 11 for sludge discharge treatment; concentrated solution generated by concentration and dehydration in the sludge concentration tank 11 and the sludge dewatering machine room 12 flows back to the regulating tank 2 for treatment again, so that waste of water resources is avoided, and resource utilization is realized.
The sludge can be transported out after being treated by the sludge concentration tank 11 and the sludge dewatering machine room 12.
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (4)
1. An organic wastewater treatment system for glass fiber cloth production comprises a grid water collecting well, an adjusting tank, a solid-liquid separator, a hydrolysis acidification tank, an anoxic/aerobic tank, a final sedimentation tank and a discharge water tank, and is characterized in that the grid water collecting well, the adjusting tank, the solid-liquid separator, the hydrolysis acidification tank, the anoxic/aerobic tank, the final sedimentation tank and the discharge water tank are sequentially connected through pipelines; the solid-liquid separator comprises a shell, a stirrer is arranged in the shell, a microporous aerator is arranged at the bottom of the shell, a slag discharging pool is arranged on one side of the shell, a scraper device for scraping liquid level suspended matters into the slag discharging pool is arranged above the shell, and a dosing device I is additionally arranged above the shell; the anoxic/aerobic tank is divided into a first-stage anoxic/aerobic tank and a second-stage anoxic/aerobic tank, the anoxic tank in the first-stage anoxic/aerobic tank is connected with the hydrolysis acidification tank through a pipeline in front, the aerobic tank in the second-stage anoxic/aerobic tank is connected with the final sedimentation tank through a pipeline in back, a middle sedimentation tank is arranged between the first-stage anoxic/aerobic tank and the second-stage anoxic/aerobic tank, and the middle sedimentation tank is respectively connected with the aerobic tank in the first-stage anoxic/aerobic tank and the anoxic tank in the second-stage anoxic/aerobic tank through pipelines; the sludge discharge ports at the bottoms of the slag discharge tank and the final sedimentation tank are connected with a sludge concentration tank through pipelines, and the sludge concentration tank, the sludge dewatering machine room and the sludge outward conveying pipeline are sequentially connected through pipelines; the sludge concentration tank and the concentrated solution outlet of the sludge dewatering machine room are connected with the regulating tank through pipelines; and a sludge discharge port at the bottom of the intermediate sedimentation tank is connected with the hydrolysis acidification tank through a pipeline.
2. The organic wastewater treatment system for glass fiber cloth production according to claim 1, wherein a coagulating sedimentation tank, an intermediate water tank, an MBR tank and a reuse water tank are additionally arranged behind the final sedimentation tank, and the final sedimentation tank, the coagulating sedimentation tank, the intermediate water tank, the MBR tank and the reuse water tank are sequentially connected through pipelines; and a dosing device II is arranged above the coagulating sedimentation tank, and a sludge discharge port at the bottom of the coagulating sedimentation tank is connected with an anoxic tank in the secondary anoxic/aerobic tank through a pipeline.
3. The organic wastewater treatment system for glass fiber cloth production as claimed in claim 1, wherein the drug adding device I and the drug adding device II are both one or a combination of pac and pam.
4. The organic wastewater treatment system for glass fiber cloth production according to claim 1, wherein water pumps are installed on the connecting pipes at the water inlets of the regulating tank, the solid-liquid separator, the hydrolysis acidification tank, the anoxic/aerobic tank, the intermediate sedimentation tank, the final sedimentation tank, the discharge water tank, the coagulation sedimentation tank, the intermediate water tank, the MBR tank and the reuse water tank; and the sludge pump is arranged on the connecting pipeline at the sludge inlet of the sludge concentration tank, the sludge dewatering machine room, the hydrolysis acidification tank and the secondary anoxic/aerobic tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910954145.8A CN110563281A (en) | 2019-10-09 | 2019-10-09 | Organic wastewater treatment system is used in glass fiber cloth production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910954145.8A CN110563281A (en) | 2019-10-09 | 2019-10-09 | Organic wastewater treatment system is used in glass fiber cloth production |
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| CN110563281A true CN110563281A (en) | 2019-12-13 |
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| CN201910954145.8A Pending CN110563281A (en) | 2019-10-09 | 2019-10-09 | Organic wastewater treatment system is used in glass fiber cloth production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853269A (en) * | 2022-04-24 | 2022-08-05 | 西安理工大学 | Sewage treatment system and method for conveniently cleaning residues |
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