CN108483798A - The method that secondary waste water filters fine powder - Google Patents

The method that secondary waste water filters fine powder Download PDF

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Publication number
CN108483798A
CN108483798A CN201810203362.9A CN201810203362A CN108483798A CN 108483798 A CN108483798 A CN 108483798A CN 201810203362 A CN201810203362 A CN 201810203362A CN 108483798 A CN108483798 A CN 108483798A
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CN
China
Prior art keywords
waste water
fine powder
sewage
pool
treated
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.)
Pending
Application number
CN201810203362.9A
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Chinese (zh)
Inventor
黄敏
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Fujian Zhongjing Petrochemical Co Ltd
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Fujian Zhongjing Petrochemical Co Ltd
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Priority to CN201810203362.9A priority Critical patent/CN108483798A/en
Publication of CN108483798A publication Critical patent/CN108483798A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes

Abstract

The invention discloses the methods that secondary waste water filters fine powder, include the following steps:Larger dregs are salvaged by coarse rack into coarse rack by Vatch basin first, then by the height of sewage pump lifting sewage, enter back into fine fack, smaller dregs are salvaged by fine fack;By fine fack, treated that waste water enters settling pit, by based on Gravity Separation, the larger inorganic particle of proportion in sewage being precipitated and being excluded, is handled then into biochemistry pool;By biochemistry pool, treated that waste water enters final deposition pool, passes through final deposition pool and excludes excess sludge and returned sludge.The present invention by using hollow fiber filtration membrane go water removal in bacterium, virus, the macromolecular of seaweed and dissolving, to avoid fine powder from influencing water quality, to solve existing wastewater treatment method when carrying out waste water filtering, filtering net plate can not filter out the fine powder in waste water, so as to cause treated criterion of acceptability is not achieved in waste water the problem of.

Description

The method that secondary waste water filters fine powder
Technical field
The present invention relates to technical field of waste water processing, the specially method of secondary waste water filtering fine powder.
Background technology
Wastewater treatment is exactly to be handled waste water using the method for physics, chemistry and biology, makes purification of waste water, is reduced dirty Dye makes full use of water resource so that reaching Sewage treatment, multiplexing.Waste water is divided into sanitary wastewater and industry according to the difference of type Waste water.
Sanitary sewage refers to waste water of the people discharged in number of storage tanks produced per day, this waste water mainly by life waste material and The excreta of people is polluted, and quantity, ingredient and the concentration of pollutant are related with people’s lives custom, water consumption.Sanitary sewage General and do not contain noxious material, still, it has the condition suitable for microbial reproduction, containing a large amount of bacteriums and pathogen, from From the point of view of sanitation point, there is certain harmfulness.It will produce number of types of pollutant in industrial wastewater industrial production, do not go together The type for the pollutant that industry generates has apparent difference with concentration.
A kind of wastewater filtration methods are referred in the patent of invention of Patent No. CN105198103A, although the invention is normal Rule only need dismounting head cover that can be safeguarded working while replacing filter net sheet when safeguarding, and easy to operate, at dredging Reason is also more convenient, but the processing method, when carrying out waste water filtering, filtering net plate can not filter out the fine powder in waste water, to Leading to treated, criterion of acceptability is not achieved in waste water, for this purpose, it is proposed that a kind of method of secondary waste water filtering fine powder.
Invention content
The purpose of the present invention is to provide the methods that secondary waste water filters fine powder, to solve to propose in above-mentioned background technology The problem of.
To achieve the above object, the present invention provides the following technical solutions:The method that secondary waste water filters fine powder, including such as Lower step:
(1)Larger dregs are salvaged by coarse rack, are then promoted by sewage pump into coarse rack by Vatch basin first The height of sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;
(2)By fine fack, treated that waste water enters settling pit, by based on Gravity Separation, proportion in sewage is larger Inorganic particle precipitate and exclude, handled then into biochemistry pool;
(3)By biochemistry pool, treated that waste water enters final deposition pool, excludes excess sludge and returned sludge by final deposition pool, then Into D types filter tank, then by disinfection by ultraviolet light, the Escherichia coli in water are killed;
(4)The fine powder in drainage is crossed finally by hollow fiber filtration membrane, waste water is allowed to penetrate cellulose or high molecular material Manufactured miillpore filter carrys out particle, the bacterium etc. in trap water, prevents it from being gone by filter membrane using its uniform aperture It removes, is then discharged.
Preferably, the step(1)In the coarse rack mentioned by one or more groups of parallel metal grizzly bars and frame set At the 16-25mm that wherein grizzly bar spacing is, maximum is no more than 40mm.
Preferably, the step(1)In the fine fack mentioned be by one or more groups of parallel metal grizzly bars and frame Composition, and grizzly bar spacing is using one kind in eight kinds of specifications of 1mm, 3mm, 5mm, 10mm, 20mm, 30mm, 40mm, 50mm.
Preferably, the step(2)In the biochemistry pool mentioned using BOD5, SS in activated sludge process removal sewage and each The nitrogen or phosphorus of kind form.
Preferably, the step(4)In the pore diameter range of hollow fiber filtration membrane mentioned be 0.1-75 μm, film thickness is 120-150μm。
Compared with prior art, the beneficial effects of the invention are as follows:The present invention is by using coarse rack, fine fack in water Size dregs are salvaged, and larger inorganic particle is precipitated and excluded by using settling pit, sewage is removed by biochemistry pool In BOD5, SS and nitrogen in a variety of manners or phosphorus, excess sludge and returned sludge are excluded by final deposition pool, pass through D types filter tank The SS being further reduced in waste water, makes water outlet reach national standard reference, by disinfection by ultraviolet light, kills the large intestine bar in water Bacterium, by using hollow fiber filtration membrane go water removal in bacterium, virus, colloidal solid, seaweed and dissolving macromolecular, from And fine powder is avoided to influence water quality, to solve existing wastewater treatment method when carrying out waste water filtering, filtering net plate can not mistake Filter the fine powder in waste water, so as to cause treated criterion of acceptability is not achieved in waste water the problem of.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects It encloses.
The present invention provides a kind of technical solution:The method that secondary waste water filters fine powder, includes the following steps:
(1)Larger dregs are salvaged by coarse rack, are then promoted by sewage pump into coarse rack by Vatch basin first The height of sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;
(2)By fine fack, treated that waste water enters settling pit, by based on Gravity Separation, proportion in sewage is larger Inorganic particle precipitate and exclude, handled then into biochemistry pool;
(3)By biochemistry pool, treated that waste water enters final deposition pool, excludes excess sludge and returned sludge by final deposition pool, then Into D types filter tank, then by disinfection by ultraviolet light, the Escherichia coli in water are killed;
(4)The fine powder in drainage is crossed finally by hollow fiber filtration membrane, waste water is allowed to penetrate cellulose or high molecular material Manufactured miillpore filter carrys out particle, the bacterium etc. in trap water, prevents it from being gone by filter membrane using its uniform aperture It removes, is then discharged.
Embodiment one:
Larger dregs are salvaged by coarse rack into coarse rack by Vatch basin first, then pass through sewage pump lifting sewage Height, enter back into fine fack, pass through fine fack and salvage smaller dregs;By fine fack, treated that waste water enters desilting Pond, by based on Gravity Separation, the larger inorganic particle of proportion in sewage being precipitated and being excluded, then into biochemistry pool It is handled;By biochemistry pool, treated that waste water enters final deposition pool, excludes excess sludge and returned sludge by final deposition pool, so Enter D types filter tank afterwards, then by disinfection by ultraviolet light, kills the Escherichia coli in water;Finally by hollow fiber filtration membrane The fine powder in drainage is crossed, waste water is allowed to come using its uniform aperture through miillpore filter made of cellulose or high molecular material Particle, bacterium in trap water etc. prevent it from being removed by filter membrane, are then discharged.
Embodiment two:
Larger dregs are salvaged by coarse rack, wherein coarse rack is by one or more groups of into coarse rack by Vatch basin first Parallel metal grizzly bar is formed with frame, the 16-25mm that wherein grizzly bar spacing is, maximum is no more than 40mm;Then pass through dirt The height of water pump lifting sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;By fine fack, that treated is useless Water enters settling pit, by based on Gravity Separation, the larger inorganic particle of proportion in sewage being precipitated and being excluded, then into Enter to biochemistry pool and is handled;By biochemistry pool, treated that waste water enters final deposition pool, by final deposition pool exclude excess sludge and Returned sludge, then by disinfection by ultraviolet light, kills the Escherichia coli in water subsequently into D types filter tank;Finally by hollow fibre Fine powder in dimensional filter membrane filtration water allows waste water through miillpore filter made of cellulose or high molecular material, utilizes it Uniform aperture comes particle, bacterium etc. in trap water, prevents it from being removed by filter membrane, be then discharged.
Embodiment three:
Larger dregs are salvaged by coarse rack, wherein coarse rack is by one or more groups of into coarse rack by Vatch basin first Parallel metal grizzly bar is formed with frame, the 16-25mm that wherein grizzly bar spacing is, maximum is no more than 40mm;Then pass through dirt The height of water pump lifting sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;Wherein fine fack be by one group or Multigroup parallel metal grizzly bar and frame form, and grizzly bar spacing using 1mm, 3mm, 5mm, 10mm, 20mm, 30mm, 40mm, One kind in eight kinds of specifications of 50mm;By fine fack, treated that waste water enters settling pit, will by based on Gravity Separation The larger inorganic particle of proportion is precipitated and is excluded in sewage, is handled then into biochemistry pool;After biochemistry pool is handled Waste water enter final deposition pool, then exclude excess sludge and returned sludge by final deposition pool passes through purple subsequently into D types filter tank Outside line sterilizes, and kills the Escherichia coli in water;The fine powder in drainage is crossed finally by hollow fiber filtration membrane, makes waste water saturating Miillpore filter made of cellulose or high molecular material is crossed, using its uniform aperture, carrys out particle, the bacterium etc. in trap water, makes It cannot be removed by filter membrane, be then discharged.
Example IV:
Larger dregs are salvaged by coarse rack, wherein coarse rack is by one or more groups of into coarse rack by Vatch basin first Parallel metal grizzly bar is formed with frame, the 16-25mm that wherein grizzly bar spacing is, maximum is no more than 40mm;Then pass through dirt The height of water pump lifting sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;Wherein fine fack be by one group or Multigroup parallel metal grizzly bar and frame form, and grizzly bar spacing using 1mm, 3mm, 5mm, 10mm, 20mm, 30mm, 40mm, One kind in eight kinds of specifications of 50mm;By fine fack, treated that waste water enters settling pit, will by based on Gravity Separation The larger inorganic particle of proportion is precipitated and is excluded in sewage, is handled then into biochemistry pool, and biochemistry pool is dirty using activity BOD5, SS and various forms of nitrogen in mud method removal sewage or phosphorus;By biochemistry pool, treated that waste water enters final deposition pool, leads to It crosses final deposition pool and excludes excess sludge and returned sludge, subsequently into D types filter tank, then by disinfection by ultraviolet light, kill in water Escherichia coli;The fine powder in drainage is crossed finally by hollow fiber filtration membrane, waste water is allowed to penetrate cellulose or macromolecule material Miillpore filter carrys out particle, the bacterium etc. in trap water using its uniform aperture made of material, prevent its from by the filter membrane by by Removal, is then discharged.
Embodiment five:
Larger dregs are salvaged by coarse rack, wherein coarse rack is by one or more groups of into coarse rack by Vatch basin first Parallel metal grizzly bar is formed with frame, the 16-25mm that wherein grizzly bar spacing is, maximum is no more than 40mm;Then pass through dirt The height of water pump lifting sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;Wherein fine fack be by one group or Multigroup parallel metal grizzly bar and frame form, and grizzly bar spacing using 1mm, 3mm, 5mm, 10mm, 20mm, 30mm, 40mm, One kind in eight kinds of specifications of 50mm;By fine fack, treated that waste water enters settling pit, will by based on Gravity Separation The larger inorganic particle of proportion is precipitated and is excluded in sewage, is handled then into biochemistry pool, and biochemistry pool is dirty using activity BOD5, SS and various forms of nitrogen in mud method removal sewage or phosphorus;By biochemistry pool, treated that waste water enters final deposition pool, leads to It crosses final deposition pool and excludes excess sludge and returned sludge, subsequently into D types filter tank, then by disinfection by ultraviolet light, kill in water Escherichia coli;The fine powder in drainage is crossed finally by hollow fiber filtration membrane, waste water is allowed to penetrate cellulose or macromolecule material Miillpore filter carrys out particle, the bacterium etc. in trap water using its uniform aperture made of material, prevent its from by the filter membrane by by Removal, is then discharged, and wherein the pore diameter range of hollow fiber filtration membrane is 0.1-75 μm, and film thickness is 120-150 μm.
The present invention salvages the size dregs in water by using coarse rack, fine fack, will by using settling pit It larger inorganic particle precipitation and excludes, BOD5, SS in sewage and nitrogen in a variety of manners or phosphorus is removed by biochemistry pool, led to It crosses final deposition pool and excludes excess sludge and returned sludge, the SS in waste water is further reduced by D types filter tank, water outlet is made to reach country Primary standard kills the Escherichia coli in water by disinfection by ultraviolet light, is gone by hollow fiber filtration membrane thin in water removal Bacterium, virus, colloidal solid, seaweed and dissolving macromolecular, to avoid fine powder influence water quality, to solve existing waste water For processing method when carrying out waste water filtering, filtering net plate can not filter out the fine powder in waste water, so as to cause treated waste water The problem of criterion of acceptability is not achieved.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. the method that secondary waste water filters fine powder, it is characterised in that:Include the following steps:
(1)Larger dregs are salvaged by coarse rack, are then promoted by sewage pump into coarse rack by Vatch basin first The height of sewage, enters back into fine fack, and smaller dregs are salvaged by fine fack;
(2)By fine fack, treated that waste water enters settling pit, by based on Gravity Separation, proportion in sewage is larger Inorganic particle precipitate and exclude, handled then into biochemistry pool;
(3)By biochemistry pool, treated that waste water enters final deposition pool, excludes excess sludge and returned sludge by final deposition pool, then Into D types filter tank, then by disinfection by ultraviolet light, the Escherichia coli in water are killed;
(4)The fine powder in drainage is crossed finally by hollow fiber filtration membrane, waste water is allowed to penetrate cellulose or high molecular material Manufactured miillpore filter carrys out particle, the bacterium etc. in trap water, prevents it from being gone by filter membrane using its uniform aperture It removes, is then discharged.
2. the method for secondary waste water filtering fine powder according to claim 1, it is characterised in that:The step(1)In carry To coarse rack be made of with frame one or more groups of parallel metal grizzly bars, the 16-25mm that wherein grizzly bar spacing is is maximum No more than 40mm.
3. the method for secondary waste water filtering fine powder according to claim 1, it is characterised in that:The step(1)In carry To fine fack be made of with frame one or more groups of parallel metal grizzly bars, and grizzly bar spacing using 1mm, 3mm, 5mm, One kind in eight kinds of specifications of 10mm, 20mm, 30mm, 40mm, 50mm.
4. the method for secondary waste water filtering fine powder according to claim 1, it is characterised in that:The step(2)In carry The biochemistry pool arrived uses activated sludge process to remove BOD5, SS in sewage and various forms of nitrogen or phosphorus.
5. the method for secondary waste water filtering fine powder according to claim 1, it is characterised in that:The step(4)In carry The pore diameter range of the hollow fiber filtration membrane arrived is 0.1-75 μm, and film thickness is 120-150 μm.
CN201810203362.9A 2018-03-13 2018-03-13 The method that secondary waste water filters fine powder Pending CN108483798A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395946A (en) * 2013-08-17 2013-11-20 哈尔滨金大环境工程有限公司 Low-energy-consumption wastewater treatment technological process
CN205803246U (en) * 2016-06-12 2016-12-14 天津智慧佳环境技术有限公司 A kind of Sewage Plant sewage-treatment plant
CN107473472A (en) * 2017-09-29 2017-12-15 项心力 A kind of method based on physical chemistry coacervation processing sewage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395946A (en) * 2013-08-17 2013-11-20 哈尔滨金大环境工程有限公司 Low-energy-consumption wastewater treatment technological process
CN205803246U (en) * 2016-06-12 2016-12-14 天津智慧佳环境技术有限公司 A kind of Sewage Plant sewage-treatment plant
CN107473472A (en) * 2017-09-29 2017-12-15 项心力 A kind of method based on physical chemistry coacervation processing sewage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
叶婴齐: "《工业用水处理技术》", 31 October 1995 *

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