CN113354146A - Phosphorus-containing sewage environment treatment method and treatment device - Google Patents
Phosphorus-containing sewage environment treatment method and treatment device Download PDFInfo
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- CN113354146A CN113354146A CN202110639653.4A CN202110639653A CN113354146A CN 113354146 A CN113354146 A CN 113354146A CN 202110639653 A CN202110639653 A CN 202110639653A CN 113354146 A CN113354146 A CN 113354146A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/056—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
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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
- 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
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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
- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention discloses a method and a device for treating phosphorus-containing sewage environment, relating to the technical field of chemical pollution treatment and comprising the following specific steps: introducing phosphorus-containing sewage into a No. 1 neutralization tank, adding sodium hydroxide for acid-base neutralization until the pH value is between 8.5 and 9.5, and introducing the phosphorus-containing sewage into a subsequent aging tank group; step two, the phosphorus-containing sewage enters an aging tank in an aging tank group to be kept stand, the aging tank is aerated for 1.5 to 2.5 hours after the phosphorus-containing sewage is kept stand, and the clear liquid on the upper layer in the aging tank is guided into an oxidation tank; the method for treating the phosphorus-containing sewage in the environment is simple, thorough oxidation is ensured through the aging tank and the oxidation tank, the oxidation speed is high, the treatment efficiency is improved, meanwhile, during treatment, effective components in the treating agent can be oxidized, and then the effective components react quickly to form sludge, so that phosphorus is completely removed, secondary pollution is avoided, the cost for treating wastewater is lower, and remarkable social and economic benefits can be obtained.
Description
Technical Field
The invention relates to the technical field of chemical pollution treatment, in particular to a phosphorus-containing sewage environment treatment method and a treatment device.
Background
The eutrophication of water body can be accelerated by the over-standard phosphorus element in the sewage, which is serious in China and brings great harm to industry, water industry, agriculture and tourism industry. The increase of the concentration of nutrient substances such as nitrogen, phosphorus and the like is the reason of mass propagation of algae, wherein phosphorus is also taken as a key factor. Therefore, how to effectively reduce the concentration of phosphorus in the sewage has very important significance for eliminating pollution and protecting the environment.
At present, the domestic and foreign sewage dephosphorization technology mainly comprises two major types, namely a biological method and a chemical method. Biological methods such as A/O, A2/O, UCT process, mainly suitable for treating low-concentration and organic phosphorus-containing wastewater; the chemical method and the physical chemical method mainly comprise the processes of coagulating sedimentation, ion exchange adsorption, electrodialysis, reverse osmosis and the like, and are mainly suitable for treating inorganic phosphorus-containing wastewater.
The existing phosphorus-containing sewage environment treatment method is complex, incomplete in oxidation and easy to have incomplete phosphorus removal phenomenon, meanwhile, a filter pressing device is needed in the treatment method for filter pressing treatment, the whole length of the filter pressing belt is changed after the existing filter pressing device is used for a period of time, and sludge can have residual moisture during later filter pressing and is incomplete in filter pressing.
Therefore, a method and a device for treating phosphorus-containing sewage environment are provided to solve the problems.
Disclosure of Invention
The invention aims to provide a method and a device for treating phosphorus-containing sewage environment, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for treating phosphorus-containing sewage environment comprises the following specific steps:
introducing phosphorus-containing sewage into a No. 1 neutralization tank, adding sodium hydroxide for acid-base neutralization until the pH value is between 8.5 and 9.5, and introducing the phosphorus-containing sewage into a subsequent aging tank group;
step two, the phosphorus-containing sewage enters an aging tank in an aging tank group to be kept stand, the aging tank is aerated for 1.5 to 2.5 hours after the phosphorus-containing sewage is kept stand, and the clear liquid on the upper layer in the aging tank is guided into an oxidation tank;
adding sodium hypochlorite into the oxidation tank for oxidation, stirring and aerating for 3.5-4.5h, adding a treating agent for continuous stirring treatment, and finally introducing the sewage into a sedimentation tank after stirring for 3-4 h;
and step four, adding a sufficient amount of calcium chloride solution into the sedimentation tank, standing for a sufficient time to precipitate phosphorus in the water, leading out the precipitated sludge in the sedimentation tank to a filter press for filter pressing, leading out water subjected to filter pressing by the filter press and upper clear water to an acid neutralization tank, adding hydrochloric acid for neutralization until the pH value is between 6 and 8, continuing to precipitate for a period of time, finally detecting the quality of sewage, and discharging after the sewage reaches the standard.
Furthermore, the treating agent is prepared from the following components in parts by weight: 20-25 parts of potassium permanganate, 12-16 parts of polyacrylamide, 3.5-6 parts of polymeric ferrous sulfate, 1.5-4.5 parts of sodium sulfide, 12-20 parts of biotite, 12-25 parts of sodium silicate and 15.6-20.5 parts of polyaluminium chloride.
A treatment device of a phosphorus-containing sewage environment treatment method comprises a first support plate, wherein the first support plate is connected with a filter-pressing structure for sludge filter-pressing, the filter-pressing structure comprises a driving motor, a second support plate, a third support plate, an upper filter belt, a lower filter belt, a first gear ring, a second gear ring, an upper driving roller and an upper driving roller, the first support plate is rotatably connected with five groups of same lower driving rollers through fixedly connected bearings, the outer wall of the lower driving roller is movably connected with the lower filter belt, one group of the lower driving rollers are fixedly connected with the output end of the driving motor, the rear end of a rotating shaft of the lower driving roller connected with the driving motor is fixedly connected with the second gear ring, the front and rear side walls of the first support plate are fixedly connected with the second support plate, the inner wall of the second support plate is fixedly connected with the third support plate, the third support plate is rotatably connected with five groups of same upper driving rollers through fixedly connected bearings, the outer wall of the upper driving roller is movably connected with an upper filter belt, the upper filter belt is matched with the lower filter belt for use, the rear end of one group of the upper driving rollers is fixedly connected with a first gear ring, and the top of the first gear ring is meshed with the top of a second gear ring;
a lower tensioning structure used for tensioning a lower filter belt is fixedly connected between the first supporting plates, the lower tensioning structure comprises an n-shaped supporting plate, a U-shaped plate, a second circular plate, a second spring, a second square slide rod and a second tensioning wheel, the middle end of the n-shaped supporting plate is fixedly connected with the second spring, the bottom of the second spring is fixedly connected with the second circular plate, the top of the second circular plate is fixedly connected with the second square slide rod, the top of the second square slide rod penetrates through the n-shaped supporting plate and is fixedly connected with the U-shaped plate, the inner wall of the vertical part of the U-shaped plate is rotatably connected with the second tensioning wheel through a fixedly connected bearing, and the bottom plate of the second tensioning wheel is in fit contact with the inner wall of the lower filter belt;
the third supporting plate is connected with an upper tensioning structure used for tensioning an upper filter belt, the upper tensioning structure comprises a first spring, a first circular plate, a transverse plate, an n-shaped plate, a first square slide bar and an upper tensioning wheel, the top of the transverse plate is fixedly connected with the first spring, the top of the first spring is fixedly connected with the first circular plate, the bottom of the first circular plate is fixedly connected with the first square slide bar, the bottom of the first square slide bar penetrates through the transverse plate and then is fixedly connected with the n-shaped plate, the inner wall of the vertical part of the n-shaped plate is rotatably connected with the upper tensioning wheel through a fixedly connected bearing, and the top of the upper tensioning wheel is attached to and slidably connected with the inner wall of the upper filter belt;
the feeding structure comprises a Z-shaped plate, a material box, a floating plate and a connecting plate, wherein the material box is fixedly connected to the inner wall of the top of the Z-shaped plate, the discharging end of the material box is arranged above the lower filter belt, the connecting plate is uniformly and fixedly connected to the lower end of the side wall of the material box, and the floating plate is fixedly connected to the bottom of the connecting plate;
a drainage structure for collecting water is arranged between the lower filter belts of the first supporting plate;
first backup pad is equipped with the clearance structure that is used for going up filter belt and lower filter belt silt to scrape out at the left side wall, the clearance structure includes first connecting block, first scraper blade, second scraper blade and second connecting block, fixedly connected with second scraper blade between the second connecting block, the second scraper blade sets up to the upper right side, the outer wall laminating contact of second scraper blade and lower filter belt, the first scraper blade of fixedly connected with between the first scraper blade, first scraper blade below to the right side sets up, the outer wall laminating contact of second scraper blade and last filter belt.
Furthermore, the outer wall of the first supporting plate is fixedly connected with a supporting frame, and the driving motor is fixedly installed at the top of the supporting frame.
Furthermore, the n-shaped supporting plate is fixedly arranged on the inner wall of the first supporting plate.
Further, the first spring is fixedly installed on the top of the third support plate.
Further, the vertical distance between the troweling plate and the lower filter belt is larger than the shortest distance between the upper filter belt and the lower filter belt.
Further, drainage structures includes drain pipe, L shape water receiving board, third connecting block and cross bore, L shape water receiving board slope sets up, the left end top of L shape water receiving board sets up under the lower drive roller of upper end, the right-hand member of L shape water receiving board sets up the unloading end right side of workbin, the lateral wall of L shape water receiving board contacts with the inner wall laminating of first backup pad, the even fixed mounting of third connecting block is in the bottom of L shape water receiving board, the cross bore has been seted up in the lower extreme department of L shape water receiving board to first backup pad, first backup pad is at the outer end fixedly connected with drain pipe of cross bore, the drain pipe passes through the pipeline and is connected the pond.
Furthermore, the third connecting block is fixedly arranged on the inner wall of the first supporting plate through bolts.
Furthermore, the second connecting block is fixedly connected with the inner wall of the first supporting plate, and the first connecting block is fixedly connected with the inner wall of the third supporting plate.
The invention has the beneficial effects that:
according to the invention, the first round plate is pushed to move upwards by the first spring of the upper tensioning structure, the first round plate drives the first square slide bar to move upwards, the first square slide bar drives the n-shaped plate to move upwards, the n-shaped plate drives the upper tensioning wheel to move downwards, the upper tensioning wheel realizes tensioning treatment on the upper filter belt, meanwhile, the second spring of the lower tensioning structure drives the second round plate to move downwards, the second round plate drives the second square slide bar to move downwards, the second square slide bar drives the U-shaped plate to move downwards, the U-shaped plate drives the second tensioning wheel to move downwards, and the second tensioning wheel realizes tensioning treatment on the lower filter belt, so that the upper filter belt and the lower filter belt are in a tensioning state, the interval between the upper filter belt and the lower filter belt is always controlled within a specified range during filter pressing, moisture can be remained during later filter pressing, and a long-term filter pressing effect is kept;
the first scraper plate of the cleaning structure is in contact with the upper filter belt in a laminating manner, the first scraper plate scrapes the upper filter belt when the upper filter belt slides, so that the cleanness of the upper filter belt is ensured, meanwhile, the second scraper plate is in contact with the lower filter belt in a laminating manner, and the second scraper plate scrapes the lower filter belt when the lower filter belt slides, so that the surface cleanness of the upper filter belt and the lower filter belt is ensured, and the upper filter belt and the lower filter belt are favorably subjected to filter pressing;
the sludge flows onto the lower filter belt from the bottom of the material box of the feeding structure, and the trowelling plate uniformly spreads the sludge on the lower filter belt, so that the phenomenon of non-uniformity in the process of feeding the sludge is avoided, and stable filter pressing of the upper filter belt and the lower filter belt is facilitated;
according to the invention, water subjected to filter pressing of the lower filter belt is collected through the L-shaped water receiving plate of the drainage structure, then enters the drainage pipe from the transverse hole, and is finally discharged from the drainage pipe, so that the water subjected to filter pressing is conveniently discharged.
The method for treating the phosphorus-containing sewage in the environment is simple, thorough oxidation is ensured through the aging tank and the oxidation tank, the oxidation speed is high, the treatment efficiency is improved, meanwhile, during treatment, effective components in the treating agent can be oxidized, and then the effective components react quickly to form sludge, so that phosphorus is completely removed, secondary pollution is avoided, the cost for treating wastewater is lower, and remarkable social and economic benefits can be obtained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the abatement method of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a rear view of the structure of the present invention;
FIG. 4 is a top view of the structure of the present invention;
FIG. 5 is a bottom left view of the structure of the present invention;
FIG. 6 is a left side view in cross-section of the structure of the present invention;
FIG. 7 is a structural cross-sectional view of the present invention;
FIG. 8 is a bottom left cross-sectional view of the structure of the present invention;
FIG. 9 is an enlarged view of the structure at A of FIG. 3 according to the present invention;
FIG. 10 is an enlarged view of the structure at B of FIG. 6 according to the present invention;
FIG. 11 is an enlarged view of the structure of FIG. 7 at C according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. the cleaning device comprises a first supporting plate 2, a supporting frame 3, a driving motor 4, a second supporting plate 5, a third supporting plate 6, a cleaning structure 601, a first connecting block 602, a first scraper 603, a second scraper 604, a second connecting block 7, an upper tensioning structure 701, a first spring 702, a first circular plate 703, a transverse plate 704, an n-shaped plate 705, a first square sliding rod 706, an upper tensioning wheel 8, an upper filter belt 9, a lower filter belt 10, a lower tensioning structure 1001, an n-shaped supporting plate 1002, a U-shaped plate 1003, a second circular plate 1004, a second spring 1005, a second square sliding rod 1006, a second tensioning wheel 11, a feeding structure 1101, a Z-shaped plate 1102, a material box 1103, a plastering plate 1104, a connecting plate 12, a drainage structure 1201, an L-shaped water receiving plate 1203, a third connecting block 1204, a transverse hole 13, a first gear ring 14, a second gear ring 15, an upper driving roller 16 and a lower driving roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The present invention will be further described with reference to the following examples.
Example 1
As shown in figure 1, the method for treating the phosphorus-containing sewage environment comprises the following specific steps:
introducing phosphorus-containing sewage into a No. 1 neutralization tank, adding sodium hydroxide for acid-base neutralization until the pH value is between 8.5 and 9.5, and introducing the phosphorus-containing sewage into a subsequent aging tank group;
step two, the phosphorus-containing sewage enters an aging tank in an aging tank group to be kept stand, the aging tank is aerated for 1.5 to 2.5 hours after the phosphorus-containing sewage is kept stand, and the clear liquid on the upper layer in the aging tank is guided into an oxidation tank;
adding sodium hypochlorite into the oxidation tank for oxidation, stirring and aerating for 3.5-4.5h, adding a treating agent for continuous stirring treatment, and finally introducing the sewage into a sedimentation tank after stirring for 3-4 h;
and step four, adding a sufficient amount of calcium chloride solution into the sedimentation tank, standing for a sufficient time to precipitate phosphorus in the water, leading out the precipitated sludge in the sedimentation tank to a filter press for filter pressing, leading out water subjected to filter pressing by the filter press and upper clear water to an acid neutralization tank, adding hydrochloric acid for neutralization until the pH value is between 6 and 8, continuing to precipitate for a period of time, finally detecting the quality of sewage, and discharging after the sewage reaches the standard.
The treating agent is prepared from the following components in parts by weight: 20-25 parts of potassium permanganate, 12-16 parts of polyacrylamide, 3.5-6 parts of polymeric ferrous sulfate, 1.5-4.5 parts of sodium sulfide, 12-20 parts of biotite, 12-25 parts of sodium silicate and 15.6-20.5 parts of polyaluminium chloride;
the method for treating the phosphorus-containing sewage in the environment is simple, thorough oxidation is ensured through the aging tank and the oxidation tank, the oxidation speed is high, the treatment efficiency is improved, meanwhile, the example of the treatment agent in which the effective components can be oxidized quickly reacts to form sludge treatment during treatment, phosphorus is completely removed, secondary pollution is avoided, the cost for treating the wastewater is lower, and remarkable social and economic benefits can be obtained.
Example 2
Example 2 is a further modification to example 1.
As shown in fig. 2, 3, 4, 5, 6, 7, 8, 9 and 10, the treatment device for the phosphorus-containing sewage environment treatment method comprises a first support plate 1, the first support plate 1 is connected with a filter-pressing structure for sludge filter-pressing, the filter-pressing structure comprises a driving motor 3, a second support plate 4, a third support plate 5, an upper filter belt 8, a lower filter belt 9, a first gear ring 13, a second gear ring 14, an upper driving roller 15 and an upper driving roller 15, the outer wall of the first support plate 1 is fixedly connected with a support frame 2, the driving motor 3 is fixedly arranged on the top of the support frame 2, the first support plate 1 is rotatably connected with five groups of same lower driving rollers 16 through fixedly connected bearings, the outer wall of the lower driving roller 16 is movably connected with the lower filter belt 9, wherein the group of lower driving rollers 16 is fixedly connected with the output end of the driving motor 3, the rear end of the rotating shaft of the lower driving roller 16 connected with the driving motor 3 is fixedly connected with the second gear ring 14, the front side wall and the rear side wall of the first supporting plate 1 are fixedly connected with a second supporting plate 4, the inner wall of the second supporting plate 4 is fixedly connected with a third supporting plate 5, the third supporting plate 5 is rotatably connected with five groups of same upper driving rollers 15 through fixedly connected bearings, the outer wall of each upper driving roller 15 is movably connected with an upper filter belt 8, each upper filter belt 8 is matched with a lower filter belt 9 for use, the rear end of each group of upper driving rollers 15 is fixedly connected with a first gear ring 13, and the top of each first gear ring 13 is meshed with the top of each second gear ring 14;
a lower tensioning structure 10 used for tensioning a lower filter belt 9 is fixedly connected between the first supporting plates 1, the lower tensioning structure 1O comprises an n-shaped supporting plate 1001, a U-shaped plate 1002, a second circular plate 1003, a second spring 1004, a second square slide rod 1005 and a second tensioning wheel 1006, the middle end of the n-shaped supporting plate 1001 is fixedly connected with the second spring 1004, the bottom of the second spring 1004 is fixedly connected with the second circular plate 1003, the top of the second circular plate 1003 is fixedly connected with the second square slide rod 1005, the top of the second square slide rod 1005 penetrates through the n-shaped supporting plate 1001 and is fixedly connected with the U-shaped plate 1002, the inner wall of the upright part of the U-shaped plate 1002 is rotatably connected with the second tensioning wheel 1006 through a fixedly connected bearing, the bottom plate of the second tensioning wheel 1006 is in contact with the inner wall of the lower filter belt 9, and the n-shaped supporting plate 1001 is fixedly mounted on the inner wall of the first supporting plate 1;
the third supporting plate 5 is connected with an upper tensioning structure 7 for tensioning an upper filter belt 8, the upper tensioning structure 7 comprises a first spring 701, a first circular plate 702, a transverse plate 703, an n-shaped plate 704, a first square slide bar 705 and an upper tensioning wheel 706, the top of the transverse plate 703 is fixedly connected with the first spring 701, the top of the first spring 701 is fixedly connected with the first circular plate 702, the bottom of the first circular plate 702 is fixedly connected with the first square slide bar 705, the bottom of the first square slide bar 705 penetrates through the transverse plate 703 and then is fixedly connected with the n-shaped plate 704, the inner wall of the vertical part of the n-shaped plate 704 is rotatably connected with the upper tensioning wheel 706 through a fixedly connected bearing, the top of the upper tensioning wheel 706 is attached and slidably connected with the inner wall of the upper filter belt 8, the first spring 701 is fixedly arranged at the top of the third supporting plate 5, the first circular plate 702 is pushed to move upwards through the first spring 701 of the upper tensioning structure 7, the first circular plate 702 drives the first square slide bar 705 to move upwards, the first square sliding rod 705 drives the n-shaped plate 704 to move upwards, the n-shaped plate 704 drives the upper tensioning wheel 706 to move downwards, the upper tensioning wheel 706 tensions the upper filter belt 8, meanwhile, the second spring 1004 of the lower tensioning structure 10 drives the second circular plate 1003 to move downwards, the second circular plate 1003 drives the second square sliding rod 1005 to move downwards, the second square sliding rod 1005 drives the U-shaped plate 1002 to move downwards, the U-shaped plate 1002 drives the second tensioning wheel 1006 to move downwards, and the second tensioning wheel 1006 tensions the lower filter belt 9, so that the upper filter belt 8 and the lower filter belt 9 are in a tensioned state, the distance between the upper filter belt 8 and the lower filter belt 9 is controlled within a specified range all the time during filter pressing, moisture is remained in later-stage filter pressing, and a long-term filter pressing effect is kept;
the right end of the first supporting plate 1 is fixedly connected with a feeding structure 11 for uniform feeding, the feeding structure 11 comprises a Z-shaped plate 1101, a feed box 1102, a floating plate 1103 and a connecting plate 1104, the inner wall of the top of the Z-shaped plate 1101 is fixedly connected with the feed box 1102, the discharging end of the feed box 1102 is arranged above the lower filter belt 9, the lower end of the side wall of the feed box 1102 is uniformly and fixedly connected with the connecting plate 1104, the bottom of the connecting plate 1104 is fixedly connected with the floating plate 1103, the vertical distance between the floating plate 1103 and the lower filter belt 9 is larger than the shortest distance between the upper filter belt 8 and the lower filter belt 9, sludge flows onto the lower filter belt 9 from the bottom of the feed box 1102 of the feeding structure 11, and the floating plate 1103 uniformly spreads the sludge on the lower filter belt 9, so that the phenomenon of non-uniformity in the sludge feeding process is avoided, and the stable filter pressing of the upper filter belt 8 and the lower filter belt 9 is facilitated;
the first supporting plate 1 is provided with a drainage structure 12 for water collection between the lower filter belts 9;
the cleaning structure 6 for scraping sludge of the upper filter belt 8 and the lower filter belt 9 is arranged on the left side wall of the first support plate 1, the cleaning structure 6 comprises a first connecting block 601, a first scraper 602, a second scraper 603 and a second connecting block 604, the second scraper 603 is fixedly connected between the second connecting blocks 604, the second scraper 603 is arranged at the upper right side, the second scraper 603 is in contact with the outer wall of the lower filter belt 9 in an attaching manner, the first scraper 602 is fixedly connected between the first scrapers 602, the first scraper 602 is arranged towards the lower right side, the second scraper 603 is in contact with the outer wall of the upper filter belt 8 in an attaching manner, the second connecting block 604 is fixedly connected with the inner wall of the first support plate 1, the first connecting block 601 is fixedly connected with the inner wall of the third support plate 5, the first scraper 602 of the cleaning structure 6 is in contact with the upper filter belt 8 in an attaching manner, when the upper filter belt 8 slides, the first scraper 602 realizes the scraping of the upper filter belt 8, and ensures the cleanliness of the upper filter belt 8, meanwhile, the second scraper 603 is in contact with the lower filter belt 9 in an attaching mode, the second scraper 603 scrapes the lower filter belt 9 when the lower filter belt 9 slides, the surface cleanliness of the upper filter belt 8 and the lower filter belt 9 is guaranteed, and the upper filter belt 8 and the lower filter belt 9 are favorably subjected to filter pressing.
Example 3
Example 3 is a further modification to example 1.
As shown in fig. 7, 8 and 11, the drainage structure 12 includes a drainage pipe 1201, an L-shaped water receiving plate 1202, a third connecting block 1203 and a cross hole 1204, the L-shaped water receiving plate 1202 is obliquely arranged, the top of the left end of the L-shaped water receiving plate 1202 is arranged under the lower driving roller 16 at the uppermost end, the right end of the L-shaped water receiving plate 1202 is arranged at the right side of the blanking end of the material box 1102, the side wall of the L-shaped water receiving plate 1202 is in contact with the inner wall of the first supporting plate 1, the third connecting block 1203 is uniformly and fixedly arranged at the bottom of the L-shaped water receiving plate 1202, the cross hole 1204 is arranged at the lower end of the L-shaped water receiving plate 1202 of the first supporting plate 1, the drainage pipe 1201 is fixedly connected at the outer end of the cross hole 1204, the drainage pipe 1201 is connected with the water tank through a pipeline, the third connecting block 1203 is fixedly arranged at the inner wall of the first supporting plate 1 through a bolt, the water receiving plate 1202 of the drainage structure 12 collects the water filter-pressed by the lower filter belt 9, then enters the drain pipe 1201 from the cross hole 1204 and finally is discharged from the drain pipe 1201, so that the filter-pressed water is conveniently discharged.
When the filter press is used, sludge is poured into the material box 1102, flows onto the lower filter belt 9 from the bottom of the material box 1102 of the feeding structure 11, and is uniformly paved on the lower filter belt 9 by the trowelling plate 1103, so that the phenomenon of non-uniformity in the process of feeding the sludge is avoided, and the stable filter pressing of the upper filter belt 8 and the lower filter belt 9 is facilitated; the driving motor 3 drives the lower driving roller 16 to rotate, the lower driving roller 16 drives the lower filter belt 9 to move, the lower driving roller 16 drives the first gear ring 13 to rotate through the second gear ring 14, the first gear ring 13 drives the upper driving roller 15 to rotate, the upper driving roller 15 drives the upper filter belt 8 to move, the upper filter belt 8 and the lower filter belt 9 are subjected to filter pressing treatment, the L-shaped water receiving plate 1202 of the drainage structure 12 collects water subjected to filter pressing of the lower filter belt 9, the water enters the drainage pipe 1201 from the transverse hole 1204 and is finally discharged from the drainage pipe 1201, so that the water subjected to filter pressing is conveniently discharged, when the upper filter belt 8 and the lower filter belt 9 rotate, the first scraper 602 of the cleaning structure 6 is in contact with the upper filter belt 8 in a joint mode, when the upper filter belt 8 slides, the first scraper 602 scrapes the upper filter belt 8, the cleanliness of the upper filter belt 8 is guaranteed, meanwhile, the second scraper 603 is in contact with the lower filter belt 9 in a joint mode, and when the lower filter belt 9 slides, the second scraper scrapes the lower filter belt 9, the surface cleanliness of the upper filter belt 8 and the lower filter belt 9 is ensured, and the filter pressing of the upper filter belt 8 and the lower filter belt 9 is facilitated.
Wherein, the first spring 701 of the upper tensioning structure 7 pushes the first circular plate 702 to move upwards, the first circular plate 702 drives the first square slide bar 705 to move upwards, the first square slide bar 705 drives the n-shaped plate 704 to move upwards, the n-shaped plate 704 drives the upper tensioning wheel 706 to move downwards, the upper tensioning wheel 706 realizes tensioning treatment of the upper filter belt 8, meanwhile, the second spring 1004 of the lower tensioning structure 1O drives the second circular plate 1003 to move downwards, the second circular plate 1003 drives the second square slide bar 1005 to move downwards, the second square slide bar 1005 drives the U-shaped plate 1002 to move downwards, the U-shaped plate 1002 drives the second tensioning wheel 1006 to move downwards, the second tensioning wheel 1006 realizes tensioning treatment of the lower filter belt 9, so as to ensure that the upper filter belt 8 and the lower filter belt 9 are in a tensioning state, ensure that the distance between the upper filter belt 8 and the lower filter belt 9 is always controlled within a specified range during filter pressing, and sludge can remain moisture during later stage filter pressing, the long-term filter pressing effect is kept.
In the description herein, reference to the description of the terms "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A method for treating phosphorus-containing sewage environment is characterized by comprising the following steps: the method comprises the following specific steps:
introducing phosphorus-containing sewage into a No. 1 neutralization tank, adding sodium hydroxide for acid-base neutralization until the pH value is between 8.5 and 9.5, and introducing the phosphorus-containing sewage into a subsequent aging tank group;
step two, the phosphorus-containing sewage enters an aging tank in an aging tank group to be kept stand, the aging tank is aerated for 1.5 to 2.5 hours after the phosphorus-containing sewage is kept stand, and the clear liquid on the upper layer in the aging tank is guided into an oxidation tank;
adding sodium hypochlorite into the oxidation tank for oxidation, stirring and aerating for 3.5-4.5h, adding a treating agent for continuous stirring treatment, and finally introducing the sewage into a sedimentation tank after stirring for 3-4 h;
and step four, adding a sufficient amount of calcium chloride solution into the sedimentation tank, standing for a sufficient time to precipitate phosphorus in the water, leading out the precipitated sludge in the sedimentation tank to a filter press for filter pressing, leading out water subjected to filter pressing by the filter press and upper clear water to an acid neutralization tank, adding hydrochloric acid for neutralization until the pH value is between 6 and 8, continuing to precipitate for a period of time, finally detecting the quality of sewage, and discharging after the sewage reaches the standard.
2. The environmental improvement method for phosphorus-containing sewage according to claim 1, characterized in that: the treating agent is prepared from the following components in parts by weight: 20-25 parts of potassium permanganate, 12-16 parts of polyacrylamide, 3.5-6 parts of polymeric ferrous sulfate, 1.5-4.5 parts of sodium sulfide, 12-20 parts of biotite, 12-25 parts of sodium silicate and 15.6-20.5 parts of polyaluminium chloride.
3. A treatment device according to claim 1, comprising a first support plate (1), wherein the first support plate (1) is connected with a filter-pressing structure for sludge filter-pressing, the filter-pressing structure comprises a driving motor (3), a second support plate (4), a third support plate (5), an upper filter belt (8), a lower filter belt (9), a first gear ring (13), a second gear ring (14), an upper driving roller (15) and an upper driving roller (15), the first support plate (1) is rotationally connected with five groups of same lower driving rollers (16) through bearings which are fixedly connected, the outer wall of each lower driving roller (16) is movably connected with the lower filter belt (9), one group of the lower driving rollers (16) is fixedly connected with the output end of the driving motor (3), the rear end of the rotating shaft of the lower driving roller (16) connected with the driving motor (3) is fixedly connected with the second gear ring (14), the front side wall and the rear side wall of the first supporting plate (1) are fixedly connected with a second supporting plate (4), the inner wall of the second supporting plate (4) is fixedly connected with a third supporting plate (5), the third supporting plate (5) is rotatably connected with five groups of identical upper driving rollers (15) through fixedly connected bearings, the outer wall of each upper driving roller (15) is movably connected with an upper filter belt (8), each upper filter belt (8) is matched with a lower filter belt (9) for use, the rear end of one group of upper driving rollers (15) is fixedly connected with a first gear ring (13), and the top of the first gear ring (13) is meshed with the top of the second gear ring (14);
a lower tensioning structure (10) used for tensioning the lower filter belt (9) is fixedly connected between the first supporting plates (1), the lower tensioning structure (10) comprises an n-shaped supporting plate (1001), a U-shaped plate (1002), a second round plate (1003), a second spring (1004), a second square sliding rod (1005) and a second tensioning wheel (1006), a second spring (1004) is fixedly connected at the middle end of the n-shaped supporting plate (1001), the bottom of the second spring (1004) is fixedly connected with a second round plate (1003), the top of the second round plate (1003) is fixedly connected with a second square sliding rod (1005), the top of the second square sliding rod (1005) penetrates through the n-shaped supporting plate (1001) to be fixedly connected with a U-shaped plate (1002), the inner wall of the upright part of the U-shaped plate (1002) is rotationally connected with a second tension wheel (1006) through a bearing which is fixedly connected, the bottom plate of the second tensioning wheel (1006) is in contact with the inner wall of the lower filter belt (9) in a fitting manner;
the third supporting plate (5) is connected with an upper tensioning structure (7) for tensioning an upper filter belt (8), the upper tensioning structure (7) comprises a first spring (701), a first circular plate (702), a transverse plate (703), an n-shaped plate (704), a first square sliding rod (705) and an upper tensioning wheel (706), the top of the transverse plate (703) is fixedly connected with a first spring (701), the top of the first spring (701) is fixedly connected with a first circular plate (702), the bottom of the first round plate (702) is fixedly connected with a first square sliding rod (705), the bottom of the first square sliding rod (705) penetrates through the transverse plate (703) and then is fixedly connected with an n-shaped plate (704), the inner wall of the upright part of the n-shaped plate (704) is rotationally connected with an upper tension wheel (706) through a bearing fixedly connected, the top of the upper tension wheel (706) is attached to the inner wall of the upper filter belt (8) in a sliding connection manner;
the feeding structure (11) for uniform feeding is fixedly connected to the right end of the first supporting plate (1), the feeding structure (11) comprises a Z-shaped plate (1101), a material box (1102), a floating plate (1103) and a connecting plate (1104), the material box (1102) is fixedly connected to the inner wall of the top of the Z-shaped plate (1101), the discharging end of the material box (1102) is arranged above the lower filter belt (9), the connecting plate (1104) is uniformly and fixedly connected to the lower end of the side wall of the material box (1102), and the floating plate (1103) is fixedly connected to the bottom of the connecting plate (1104);
a drainage structure (12) for water collection is arranged between the lower filter belts (9) of the first supporting plate (1);
first backup pad (1) is equipped with clearance structure (6) that are used for filter belt (8) and lower filter belt (9) silt to scrape at the left side wall, clearance structure (6) include first connecting block (601), first scraper blade (602), second scraper blade (603) and second connecting block (604), fixedly connected with second scraper blade (603) between second connecting block (604), second scraper blade (603) upper right side sets up, the outer wall laminating contact of second scraper blade (603) and lower filter belt (9), first scraper blade (602) of fixedly connected with between first scraper blade (602), first scraper blade (602) below right side sets up, the outer wall laminating contact of second scraper blade (603) and last filter belt (8).
4. The apparatus for preparing a treatment apparatus according to claim 3, wherein the apparatus comprises: the outer wall fixedly connected with support frame (2) of first backup pad (1), driving motor (3) fixed mounting is at the top of support frame (2).
5. The apparatus for preparing a treatment apparatus according to claim 3, wherein the apparatus comprises: the n-shaped supporting plate (1001) is fixedly arranged on the inner wall of the first supporting plate (1).
6. The apparatus for preparing a treatment apparatus according to claim 3, wherein the apparatus comprises: the first spring (701) is fixedly arranged on the top of the third supporting plate (5).
7. The apparatus for preparing a treatment apparatus according to claim 3, wherein the apparatus comprises: the vertical distance between the troweling plate (1103) and the lower filter belt (9) is larger than the shortest distance between the upper filter belt (8) and the lower filter belt (9).
8. The apparatus for preparing a treatment apparatus according to claim 3, wherein the apparatus comprises: the drainage structure (12) comprises a drainage pipe (1201), an L-shaped water receiving plate (1202), a third connecting block (1203) and a transverse hole (1204), the L-shaped water receiving plate (1202) is obliquely arranged, the top of the left end of the L-shaped water receiving plate (1202) is arranged right below the lower driving roller (16) at the uppermost end, the right end of the L-shaped water receiving plate (1202) is provided with the right side of the blanking end of the material box (1102), the side wall of the L-shaped water receiving plate (1202) is in contact with the inner wall of the first supporting plate (1) in an attaching way, the third connecting blocks (1203) are uniformly and fixedly arranged at the bottom of the L-shaped water receiving plate (1202), the first supporting plate (1) is provided with a transverse hole (1204) at the lower end of the L-shaped water receiving plate (1202), the outer end of the cross hole (1204) of the first supporting plate (1) is fixedly connected with a drain pipe (1201), and the drain pipe (1201) is connected with a water pool through a pipeline.
9. The apparatus for preparing a treatment apparatus according to claim 8, wherein the apparatus comprises: and the third connecting block (1203) is fixedly arranged on the inner wall of the first supporting plate (1) through a bolt.
10. The apparatus for preparing a treatment apparatus for a phosphorus-containing sewage environmental treatment method according to claim 9, wherein: the second connecting block (604) is fixedly connected with the inner wall of the first supporting plate (1), and the first connecting block (601) is fixedly connected with the inner wall of the third supporting plate (5).
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