CN111039510A - Waste water filtering device for agricultural water-saving irrigation and filtering method thereof - Google Patents
Waste water filtering device for agricultural water-saving irrigation and filtering method thereof Download PDFInfo
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- CN111039510A CN111039510A CN201911391737.XA CN201911391737A CN111039510A CN 111039510 A CN111039510 A CN 111039510A CN 201911391737 A CN201911391737 A CN 201911391737A CN 111039510 A CN111039510 A CN 111039510A
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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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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a waste water filtering device for agricultural water-saving irrigation and a filtering method thereof, and belongs to the technical field of waste water treatment equipment. The device mainly comprises a preliminary sedimentation tank, a filtering tank with a filtering element arranged inside, a microorganism reaction tank with a microorganism filler frame arranged inside, a dosing tank, a flocculation removing tank and a water storage tank; according to the invention, the impurities with different particle sizes in the wastewater are filtered by the filtering element, so that on one hand, the treatment effect on the impurities in the wastewater can be increased, on the other hand, the impurities in the filtering element can be conveniently cleaned in time, the filtering effect of the filtering element is ensured, and the reliability of the device is increased; through the rotation of microorganism filler frame, increase the decomposition effect of microorganism filler to organic substance in the water, make the pollutant homodisperse of everywhere in the water simultaneously to the water, avoid the precipitate to pile up the decomposition effect that influences microorganism filler, satisfy the agricultural irrigation requirement, energy-concerving and environment-protective.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment equipment, and particularly relates to a wastewater filtering device for agricultural water-saving irrigation and a filtering method thereof.
Background
The waste water is a general term of water and runoff rainwater drained in the process of activities of residents. The method comprises the steps of domestic sewage, industrial wastewater and other useless water such as primary rain water flowing into a drainage pipe canal, and generally refers to water which can not be recycled after being treated by a certain technology or can not reach a certain standard after being purified by primary pollution.
Along with the rapid development of cities, more and more waste water is generated in people's lives, a lot of people do not pay attention to environmental protection, sewage is discharged into a river channel or a reservoir at will to cause water body pollution, a lot of rivers become one of the biggest victims of environmental pollution, water pollution not only causes serious damage to an ecological system in water to cause extinction of animals and plants in the water, but also seriously influences the daily life of people to cause water resource waste and aggravate ecological deterioration.
As the economic life line and water consumption of the country, agriculture continues to use the traditional backward agricultural irrigation mode for a long time due to thought consciousness, capital, technology and other reasons, the agricultural irrigation can cause a large amount of waste of water resources, and along with the increasing contradiction between the shortage of water resources and the annual increase of water demand, the agricultural irrigation system has great significance in recycling and applying waste water to agricultural irrigation.
Therefore, a filtering treatment device with good wastewater filtering treatment effect, high efficiency and convenient impurity cleaning is needed to meet the requirement of agricultural irrigation.
Disclosure of Invention
Aiming at the problems, the invention provides a waste water filtering device for agricultural water-saving irrigation and a filtering method thereof.
The technical scheme of the invention is as follows: a waste water filtering device for agricultural water-saving irrigation mainly comprises a preliminary sedimentation tank, a filtering tank, a microbial reaction tank, a dosing tank, a flocculation removing tank and a water storage tank, wherein the upper end of the preliminary sedimentation tank is provided with a water inlet, the interior of the preliminary sedimentation tank is provided with a sewage discharge pump, the filtering tank is communicated with the upper end of a preliminary sedimentation tank, the interior of the filtering tank is provided with a filtering element, the microbial reaction tank is communicated with the filtering tank, the interior of the microbial reaction tank is provided with a microbial filling frame, the dosing tank is communicated with the microbial reaction tank, a flocculation removing tank is communicated with the;
the filtering element is formed by concentrically nesting a plurality of regular polygon filtering ring frames which are uniformly distributed from inside to outside and have sequentially increased side length, the bottom ends of two adjacent regular polygon filtering ring frames are sealed, each side length of each regular polygon filtering ring frame is respectively provided with an inserting groove, each inserting groove is internally inserted with a filtering net along the vertical direction, the filtering nets on the same regular polygon filtering ring frame have the same mesh number, the mesh numbers of the filtering nets inserted on the regular polygon filtering ring frames distributed from inside to outside are sequentially increased, and each regular polygon filtering ring frame is provided with a lifting hanging ring connected with a hook of an external lifting device.
Further, the microorganism filler frame includes that the vertical fixed mounting frame that is equipped with axis of rotation one is located in the microorganism reaction box and center department, with a axis of rotation electric connection's rotating electrical machines one, vertical a plurality of filler erection columns of locating in the fixed mounting frame, evenly locate every from top to bottom a plurality of microorganism filler boxes on the filler erection column drive axis of rotation through rotating electrical machines one and rotate to make whole fixed mounting frame all rotate, increase the area of contact of microorganism filler box and the interior water of microorganism reaction box, improve the decomposition effect of microorganism to organic matter in the water, increase the reliability of device.
Further, the microorganism packing box comprises an installation bottom box with a bottom end movably arranged on the packing installation column, a buckling column is arranged at the opening of the installation bottom box, an installation buckle cover is arranged at the opening of the installation bottom box, the buckling column is buckled at the opening of the installation bottom box, the side walls of the installation bottom box and the installation buckle cover are respectively composed of a stainless steel mesh, microorganism packing is placed in a cavity formed by the installation bottom box and the installation buckle cover, the microorganism packing box can be conveniently replaced through movably connecting the installation bottom box on the packing installation column, or the connecting ring is directly taken down from the buckling column, the installation buckle cover is separated from the installation bottom box, the inside microorganism packing is ensured to be sufficient, and the decomposition effect of microorganisms on organic substances in a water body is improved.
Furthermore, the flocculating agent added in the dosing tank is polyacrylamide, and the flocculating agent coagulates invisible harmful substances such as COD, BOD and heavy metal ions in the wastewater into collectable floccules, so that the wastewater treatment effect is further improved, and the treated water quality meets the agricultural irrigation requirements.
Further, the dosing box upper end is equipped with into medicine mouth, is equipped with the medicine in the dosing box and adds the component, the medicine adds the component and includes vertical locate in the dosing box and the bottom be equipped with axis of rotation two and upper end with go into medicine mouth through connection's a rotary drum, with two electric connection's of axis of rotation rotating rotary motor two, evenly set up along the rotary drum circumferencial direction and with a plurality of vertical dosing box that a rotary drum lateral wall through connection and lateral wall were equipped with a plurality of medicine mouths, add the flocculating agent to the rotary drum through going into the medicine mouth, then flow respectively to each in the vertical box of adding medicine, flow out through going out the medicine mouth at last, make flocculating agent can be even add to each corner of water, and drive two rotations of axis of rotation through rotary motor two, make flocculating agent and water intensive mixing even, and flocculating agent concentration everywhere in the water is even, improve the flocculation effect of invisible harmful substances such as COD, BOD and heavy metal, the secondary pollution of the soil environment caused by incomplete treatment of pollutants in the water body is avoided.
Further, go out medicine mouth department and be equipped with out the medicine mouth, go out medicine mouth one end and go out the medicine mouth and be connected, other end outer wall evenly is equipped with a plurality of medicine holes, and the flocculating agent is from going out the medicine mouth when flowing, through the further dispersion of a plurality of medicine holes, avoids the flocculating agent dispersion inhomogeneous to cause the deposit, influences the waste water treatment effect, increases device operational reliability.
Further, it removes wadding slope net to remove the slope of being provided with in the wadding case, remove wadding case lateral wall and be located and remove the lower one end department of wadding slope net and be equipped with row material apron, can produce the flocculent sediment in the water after the flocculating agent is handled, this flocculent sediment is through removing the wadding slope when net, can be kept apart the filtration, when the flocculent sediment is more, can open row material apron and discharge it, and the water of handling gets into the storage water tank through removing wadding slope net afterwards and treats the irrigation use, COD in the waste water can be detached through above-mentioned mode, BOD and heavy metal ion, and can in time discharge the flocculent pollutant that produces after handling, guarantee that the quality of water is qualified, can be to waste water treatment, reach the purpose of using water wisely, satisfy agricultural irrigation's demand again, kill two birds with one stone.
Furthermore, the microorganism packing box comprises an installation bottom box with the bottom end movably arranged on the packing installation column and a buckling column arranged at the opening, and an installation buckle cover with a connecting ring buckled with the buckling column arranged at the opening, wherein the side walls of the installation bottom box and the installation buckle cover are both composed of stainless steel nets, and the microorganism packing is placed in a cavity formed by the installation bottom box and the installation buckle cover.
The method for filtering the wastewater by using the wastewater filtering device mainly comprises the following steps:
(1) adding wastewater into a primary sedimentation tank through a water inlet for primary sedimentation, slowly raising the water level of a water body subjected to primary sedimentation, then feeding the water body into a filtering tank, and pumping the water body to the outside through a sewage pump for independent treatment when more precipitated impurities exist in the primary sedimentation tank;
(2) when water enters the filtering box, the water firstly falls into the filtering box from the upper end of the innermost regular polygon filtering ring frame, is filtered by the filtering nets on all sides of the innermost regular polygon filtering ring frame, then enters the next regular polygon filtering ring frame through the filtering nets, is filtered for the second time by the filtering nets on all sides of the regular polygon filtering ring frame, then passes through the corresponding filtering nets on all the regular polygon filtering ring frames from inside to outside until the water flows between the outermost regular polygon filtering ring frame and the filtering box, and then is pumped to the microorganism reaction box through a water pump;
(3) when a water body enters a microbial reaction box, a first rotating motor is started, the first rotating motor drives a first rotating shaft to rotate, so that the whole fixed mounting frame rotates, microbial filler boxes corresponding to a plurality of filler mounting columns are in full contact with all parts of the water body while the whole fixed mounting frame rotates, organic substances in the water body are decomposed, the microbial filler boxes are pumped to a filler box through an external water pump after the decomposition is finished, when microbial fillers in the microbial filler boxes need to be replaced, the mounting bottom boxes can be taken down from the filler mounting columns to replace the microbial filler boxes, or the connecting rings are directly taken down from the fastening columns, the mounting buckle covers are separated from the mounting bottom boxes, and the microbial fillers are added to the inside;
(4) after the water body enters the dosing box, starting a second rotating motor, driving the second rotating shaft to rotate by the second rotating motor, so that the rotating cylinder rotates, simultaneously adding a flocculating agent into the rotating cylinder through the medicine inlet, wherein the flocculating agent flows into each vertical dosing box respectively, and finally is dispersed and uniformly dispersed into the water body in the dosing box through a plurality of medicine outlet holes at the medicine outlet, so that invisible harmful substances such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and heavy metal ions in the water body are coagulated into collectable floccules;
(5) take out to removing the wadding case with above-mentioned cotton-shaped water, the flocculent deposit in the water can be kept apart the filtration through removing during wadding slope net, when the flocculent deposit is more, can open row material apron and discharge it, and the water of handling gets into the storage water tank through removing the wadding slope net afterwards and treats the irrigation use.
The invention has the beneficial effects that: the invention provides a waste water filtering device for agricultural water-saving irrigation and a filtering method thereof, and the device has the following advantages:
1. according to the invention, the filtering element formed by sleeving the regular polygon filtering ring frames mutually filters impurities with different particle sizes in the wastewater, so that on one hand, the treatment effect on the impurities in the wastewater can be increased, and the treated water quality meets the agricultural irrigation requirement, on the other hand, the lifting hanging rings are arranged to facilitate timely cleaning of the impurities between two adjacent regular polygon filtering ring frames, so that the filtering effect of the filtering element is ensured, and the reliability of the device is increased.
2. According to the invention, through the rotation of the microbial filler frame, on one hand, a plurality of microbial filler boxes can be in full contact with a water body, the decomposition effect of microbial fillers on organic substances in the water body is increased, and meanwhile, pollutants at all positions in the water body are uniformly dispersed into the water body, so that the decomposition effect of the microbial fillers is prevented from being influenced by accumulation of precipitates.
3. According to the invention, the flocculating agent is added to enable invisible harmful substances in the water body to be presented in a flocculent form, and the flocculent inclined net is used for isolating and removing the invisible harmful substances, so that the wastewater treatment effect is further improved, the water quality is ensured to be qualified, the wastewater is recycled, the requirement of agricultural irrigation is met, and two purposes are achieved by one action.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the filter element of the present invention;
FIG. 3 is a schematic structural view of a microbial packing frame of the present invention;
FIG. 4 is a schematic structural view of a microbial stuffing box of the present invention;
FIG. 5 is a schematic view of the structure of a drug adding element of the present invention;
fig. 6 is a schematic structural view of the medicine dispensing nozzle of the present invention.
Wherein, 1-a preliminary sedimentation tank, 10-a water inlet, 11-a sewage pump, 2-a filtering tank, 20-a filtering element, 200-a regular polygon filtering ring frame, 201-a plug groove, 202-a filtering net, 203-a lifting hanging ring, 3-a microorganism reaction box, 30-a microorganism packing frame, 300-a fixed mounting frame, 301-a rotating shaft I, 302-a rotating motor I, 303-a packing mounting column, 304-a microorganism packing box, 3040-a mounting bottom box, 3041-a connecting ring, 3042-a mounting buckle cover, 3043-a buckle column, 4-a dosing box, 40-a medicine inlet, 41-a medicine adding element, 410-a rotating cylinder, 4100-a rotating shaft II, 411-a rotating motor II, 412-a vertical dosing box, 4120-a medicine outlet, 4121-medicine outlet, 4122-medicine outlet, 5-lint removing box, 50-lint removing inclined net, 51-discharging cover plate, and 6-water storage tank.
Detailed Description
Example (b): as shown in fig. 1, the waste water filtering device for agricultural water-saving irrigation mainly comprises a preliminary sedimentation tank 1, a filtering tank 2, a microorganism reaction tank 3, a dosing tank 4, a flocculation removing tank 5 and a water storage tank 6, wherein the preliminary sedimentation tank 1 is provided with a water inlet 10 at the upper end and a sewage discharge pump 11 inside, the filtering tank 2 is communicated with the upper end of the preliminary sedimentation tank 1 and is provided with a filtering element 20 inside, the microorganism reaction tank 3 is communicated with the filtering tank 2 and is provided with a microorganism filling frame 30 inside, the dosing tank 4 is communicated with the microorganism reaction tank 3 and is internally added with a flocculation agent, the flocculation removing tank 5 is communicated with the dosing tank 4;
as shown in fig. 2, the filtering element 20 is formed by concentrically nesting 3 regular polygon filtering ring frames 200 which are uniformly distributed from inside to outside and have sequentially increased side lengths, each regular polygon filtering ring frame 200 is a regular hexagon, the bottom ends of two adjacent regular polygon filtering ring frames 200 are closed, each side length of each regular polygon filtering ring frame 200 is respectively provided with an insertion groove 201, a filtering net 202 is inserted into each insertion groove 201 along the vertical direction, the filtering nets 202 on the same regular polygon filtering ring frame 200 have the same mesh number, the mesh number of the filtering nets 202 inserted into the 3 regular polygon filtering ring frames 200 distributed from inside to outside is sequentially increased, and each regular polygon filtering ring frame 200 is provided with a lifting hanging ring 203 connected with a hook of an external lifting device;
as shown in fig. 3, the microorganism packing holder 30 includes a fixed mounting frame 300 vertically disposed in the microorganism reaction box 3 and having a first rotating shaft 301 at the center, a first rotating motor 302 electrically connected to the first rotating shaft 301, 5 packing mounting columns 303 vertically disposed in the fixed mounting frame 300, and 5 microorganism packing boxes 304 uniformly disposed on each packing mounting column 303 from top to bottom, the first rotating motor 302 drives the first rotating shaft 301 to rotate, so that the whole fixed mounting frame 300 rotates, the contact area between the microorganism packing boxes 304 and the water in the microorganism reaction box 3 is increased, the decomposition effect of microorganisms on organic substances in the water is improved, the reliability of the device is increased, as shown in fig. 4, the microorganism packing boxes 304 include a mounting bottom box 3040 having a bottom end movably disposed on the packing mounting columns 303 and an opening provided with a connecting ring 3041, and a mounting cover 3042 having an opening provided with a fastening column 3043 fastened to the connecting ring 3041, the side walls of the mounting bottom box 3040 and the mounting cover 3042 are both made of stainless steel mesh, and the microbial filler is placed in the cavity formed by the mounting bottom box 3040 and the mounting cover 3042, the microbial filler box 304 can be conveniently replaced by movably connecting the mounting bottom box 3040 to the filler mounting column 303, or the connecting ring 3041 is directly taken down from the fastening column 3043, so as to complete the separation of the mounting cover 3042 and the mounting bottom box 3040, ensure the sufficient microbial filler inside, and improve the decomposition effect of the microbes on organic substances in the water body;
the flocculating agent added into the dosing tank 4 is polyacrylamide, invisible harmful substances such as COD, BOD and heavy metal ions in the wastewater are coagulated into floccules which can be collected through the flocculating agent, the wastewater treatment effect is further improved, the treated water quality meets the agricultural irrigation requirement, the upper end of the dosing tank 4 is provided with a medicine inlet 40, a medicine adding element 41 is arranged in the dosing tank 4, as shown in figure 5, the medicine adding element 41 comprises a rotating cylinder 410 which is vertically arranged in the dosing tank 4 and is provided with a second rotating shaft 4100 at the bottom end, the upper end of the rotating cylinder is communicated with the medicine inlet 40, a second rotating motor 411 which is electrically connected with the second rotating shaft 4100, 5 vertical medicine adding boxes 412 which are uniformly arranged along the circumferential direction of the rotating cylinder 410 and are communicated with the side wall of the rotating cylinder 410, and are provided with 20 medicine outlets 4120 on the side wall, the flocculating agent is added into the rotating cylinder 410 through the medicine inlet 40 and then respectively flows into each vertical medicine adding, finally, the flocculant flows out through the drug outlet 4120, so that the flocculant can be uniformly added to all corners of the water body, and the rotating shaft II 4100 is driven to rotate by the rotating motor II 411, so that the flocculating agent is fully and uniformly mixed with the water body, and the concentration of the flocculating agent at each position in the water body is uniform, the flocculation effect of invisible harmful substances such as COD, BOD, heavy metal ions and the like in the wastewater is improved, the secondary pollution of the soil environment caused by incomplete treatment of pollutants in the water body is avoided, as shown in FIG. 6, a medicine outlet 4121 is provided at the medicine outlet 4120, one end of the medicine outlet 4121 is connected with the medicine outlet 4120, the outer wall of the other end is provided with seven side surfaces, and each side surface is evenly provided with 5 drug outlet holes 4122, when the flocculating agent flows out from the drug outlet 4120, further dispersing through 25 medicine outlet holes 4122 to avoid sedimentation caused by nonuniform dispersion of the flocculating agent, influence on the wastewater treatment effect and increase the operation reliability of the device;
remove the interior slope of wadding case 5 and be provided with except that wadding slope net 50, remove 5 lateral walls of wadding case and be located and remove the lower one end department of wadding slope net 50 and be equipped with row material apron 51, can produce the flocculent sediment in the water after the flocculating agent is handled, this flocculent sediment is through removing the wadding slope net 50 when, can be kept apart the filtration, when the flocculent sediment is more, can open row material apron 51 and discharge it, and the water of handling gets into storage water tank 6 through removing wadding slope net 50 afterwards and treats the irrigation and use, COD in the waste water can be detached through above-mentioned mode, the invisible harmful substance of naked eye such as BOD and heavy metal ion, and can in time discharge the flocculent pollutant that produces after handling, guarantee the quality of water qualified, can be to waste water treatment, reach water-saving purpose, satisfy the demand of agricultural irrigation again, double-serve.
The method for filtering the wastewater by using the wastewater filtering device mainly comprises the following steps:
(1) adding wastewater into a primary sedimentation tank 1 through a water inlet 10 for primary sedimentation, slowly raising the water level of a water body subjected to primary sedimentation, then feeding the water body into a filter tank 2, and pumping the water body to the outside through a sewage pump 11 for independent treatment when more precipitated impurities exist in the primary sedimentation tank 1;
(2) when a water body enters the filtering box 2, the water body firstly falls into the filtering box from the upper end of the innermost regular polygon filtering ring frame 200, is filtered by the filtering nets 202 on each side of the innermost regular polygon filtering ring frame 200, then enters the next regular polygon filtering ring frame 200 through the filtering nets 202, is filtered for the second time by the filtering nets 202 on each side of the regular polygon filtering ring frame 200, then passes through the corresponding filtering net 202 on the outermost regular polygon filtering ring frame 200, and is pumped to the microorganism reaction box 3 through a water pump, and when more filter residues exist between the two adjacent regular polygon filtering ring frames 200, the water body is connected with a lifting hanging ring 203 through a hook of an external lifting device, so that the whole filtering element 20 is lifted out for cleaning;
(3) when a water body enters the microbial reaction box 3, a first rotating motor 302 is started, the first rotating motor 302 drives a first rotating shaft 301 to rotate, so that the whole fixed mounting frame 300 rotates, the corresponding microbial filler boxes 304 on the 5 filler mounting columns 303 fully contact with various parts of the water body and decompose organic substances in the water body, the organic substances are pumped to the filler box 4 through an external water pump after decomposition, when microbial fillers in the microbial filler boxes 304 need to be changed, the mounting bottom boxes 3040 can be taken down from the filler mounting columns 303 to change the microbial filler boxes 304, or the connecting rings 3041 can be directly taken down from the fastening columns 3043 to complete separation of the mounting cover 3042 and the mounting bottom boxes 3040, and the microbial fillers can be added into the inside;
(4) after the water body enters the dosing tank 4, the second rotating motor 411 is started, the second rotating motor 411 drives the second rotating shaft 4100 to rotate, so that the rotating cylinder 410 rotates, meanwhile, a flocculating agent is added into the rotating cylinder 410 through the dosing port 40, the flocculating agent flows into each vertical dosing tank 412 respectively, and finally the flocculating agent is dispersed and flows out through 25 dosing holes 4122 at the dosing port 4120 to be uniformly dispersed into the water body in the dosing tank 4, so that invisible harmful substances such as COD (chemical oxygen demand), BOD (biochemical oxygen demand), heavy metal ions and the like in the water body are coagulated into collectable floccules;
(5) take out to except that wadding case 5 with above-mentioned cotton-shaped water, the flocculent deposit in the water is through removing wadding slope net 50 when, can be kept apart the filtration, when the flocculent deposit is more, can open row material apron 51 and discharge it, and the water of handling gets into storage water tank 6 through removing wadding slope net 50 afterwards and treats the irrigation use.
Examples of the experiments
Taking domestic wastewater as raw water, wherein the sampling volume is 50L, and repeatedly sampling for 8 times, wherein four groups are experimental groups, the other four groups are control groups, and the main water quality indexes are measured as follows: the COD is 26-30mg/L, NH3-N is 18-20mg/L, TN is 10-20mg/L, TP is 5-7mg/L, the domestic wastewater of the experimental group is treated by the wastewater filtering device of the invention, the domestic wastewater of the control group is treated by the existing wastewater filtering device, the wastewater treatment conditions under the water temperatures of 20 ℃, 25 ℃, 30 ℃ and 35 ℃ are respectively measured by the four experimental groups, and the four control groups are the same as the above, so that the domestic wastewater purification treatment effect table is obtained.
Table 1: the wastewater filtering device of the invention has a table for the treatment effect of the domestic wastewater
And (4) conclusion: as can be seen from Table 1, after the wastewater filtering device provided by the invention is used for treating raw water of an experimental group, the content of each index in the raw water is obviously lower than that of a control group, and the content of each index in water quality is closer to the content of a standard index parameter when the raw water is treated at the water temperature of 30 ℃.
Claims (7)
1. The waste water filtering device for agricultural water-saving irrigation is characterized by mainly comprising a preliminary sedimentation tank (1) with a water inlet (10) at the upper end and a sewage pump (11) arranged inside, a filtering tank (2) communicated with the upper end of the preliminary sedimentation tank (1) and provided with a filtering element (20) inside, a microbial reaction tank (3) communicated with the filtering tank (2) and provided with a microbial packing frame (30) inside, a dosing tank (4) communicated with the microbial reaction tank (3) and added with a flocculating agent inside, a floc removing tank (5) communicated with the dosing tank (4), and a water storage tank (6) communicated with the floc removing tank (5);
the filtering element (20) is formed by concentrically nesting a plurality of regular polygon filtering ring frames (200) which are uniformly distributed from inside to outside and have sequentially increased side length, the bottom ends of two adjacent regular polygon filtering ring frames (200) are closed, the position of each side edge of each regular polygon filtering ring frame (200) is respectively provided with an inserting groove (201), each inserting groove (201) is internally inserted with a filtering net (202) in a vertical direction in an inserting way, the filtering nets (202) on the same regular polygon filtering ring frame (200) have the same mesh number, the mesh number of the filtering nets (202) inserted on the regular polygon filtering ring frames (200) distributed from inside to outside is sequentially increased, and each regular polygon filtering ring frame (200) is provided with a lifting hanging ring (203) connected with a hook of an external lifting device.
2. The waste water filtering device for agricultural water-saving irrigation as claimed in claim 1, wherein the microorganism packing frame (30) comprises a fixed mounting frame (300) vertically arranged in the microorganism reaction box (3) and provided with a first rotating shaft (301) at the center, a first rotating motor (302) electrically connected with the first rotating shaft (301), a plurality of packing mounting columns (303) vertically arranged in the fixed mounting frame (300), and a plurality of microorganism packing boxes (304) uniformly arranged on each packing mounting column (303) from top to bottom.
3. The waste water filtering device for agricultural water-saving irrigation according to claim 1, wherein the flocculating agent added in the dosing tank (4) is polyacrylamide.
4. The agricultural water-saving irrigation waste water filtering device as claimed in claim 3, wherein a drug inlet (40) is formed in the upper end of the drug adding box (4), a drug adding element (41) is arranged in the drug adding box (4), the drug adding element (41) comprises a rotating cylinder (410) which is vertically arranged in the drug adding box (4) and provided with a second rotating shaft (4100) at the bottom end and a second rotating motor (411) at the upper end communicated with the drug inlet (40), the rotating motor (411) electrically connected with the second rotating shaft (4100), and a plurality of vertical drug adding boxes (412) which are uniformly arranged in the circumferential direction of the rotating cylinder (410), are communicated with the side wall of the rotating cylinder (410) and are provided with a plurality of drug outlets (4120) on the side wall.
5. The agricultural water-saving irrigation waste water filtering device as claimed in claim 4, wherein a medicine outlet (4121) is arranged at the medicine outlet (4120), one end of the medicine outlet (4121) is connected with the medicine outlet (4120), and a plurality of medicine outlet holes (4122) are uniformly formed in the outer wall of the other end of the medicine outlet (4121).
6. The waste water filtering device for agricultural water-saving irrigation according to claim 1, wherein a flocculation removing inclined net (50) is obliquely arranged in the flocculation removing tank (5), and a discharge cover plate (51) is arranged on the side wall of the flocculation removing tank (5) and at the lower end of the flocculation removing inclined net (50).
7. A method of filtering waste water by using the waste water filtering device according to any one of claims 1 to 6, characterized by mainly comprising the steps of:
(1) adding wastewater into a primary sedimentation tank (1) through a water inlet (10) for primary sedimentation, slowly raising the water level of a water body subjected to primary sedimentation, then feeding the water body into a filtering tank (2), and pumping the water body to the outside through a sewage pump (11) for independent treatment when more precipitated impurities exist in the primary sedimentation tank (1);
(2) when water enters the filtering box (2), the water firstly falls into the filtering box from the upper end of the innermost regular polygon filtering ring frame (200), is filtered by the filtering nets (202) on each side of the innermost regular polygon filtering ring frame (200), then enters the next regular polygon filtering ring frame (200) through the filtering nets (202), is filtered for the second time by the filtering nets (202) on each side of the regular polygon filtering ring frame (200), then passes through the corresponding filtering nets (202) on each regular polygon filtering ring frame (200) from inside to outside until the water flows between the outermost regular polygon filtering ring frame (200) and the filtering box (2), and then is pumped to the microorganism reaction box (3) through a water pump, when more filter residues exist between the two adjacent regular polygon filtering ring frames (200), the water is connected with a lifting hanging ring (203) through a hook of an external lifting device, lifting out the whole filter element (20) for cleaning;
(3) after a water body enters the microbial reaction box (3), starting a first rotating motor (302), wherein the first rotating motor (302) drives a first rotating shaft (301) to rotate, so that the whole fixed mounting frame (300) rotates, and when the whole fixed mounting frame (300) rotates, corresponding microbial packing boxes (304) on a plurality of packing mounting columns (303) are in full contact with all parts of the water body and decompose organic substances in the water body, and after decomposition, the microbial packing boxes are pumped to a dosing box (4) through an external water pump;
(4) after the water body enters the dosing tank (4), a second rotating motor (411) is started, the second rotating motor (411) drives a second rotating shaft (4100) to rotate, so that the rotating cylinder (410) rotates, meanwhile, a flocculating agent is added into the rotating cylinder (410) through the medicine inlet (40), the flocculating agent flows into each vertical dosing tank (412) respectively, and finally, the flocculating agent is dispersed and uniformly dispersed into the water body in the dosing tank (4) through a plurality of medicine outlet holes (4122) at the medicine outlet (4120) to coagulate COD, BOD and heavy metal ions in the water body into collectable floccules;
(5) take out above-mentioned cotton-shaped water to except that wadding case (5), the flocculent deposit in the water is through removing wadding inclined net (50) when, can be kept apart the filtration, when the flocculent deposit is more, can open row material apron (51) and discharge it, and the water of handling gets into storage water tank (6) subsequently through removing wadding inclined net (50) and treats the irrigation use.
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| CN114014467A (en) * | 2021-11-29 | 2022-02-08 | 左俊利 | Heavy metal ion gets rid of in aquatic and filters adsorption equipment |
| CN114573106A (en) * | 2022-03-23 | 2022-06-03 | 新疆大学 | Upflow type electric auxiliary anaerobic-aerobic coupling biomembrane reactor |
| CN116040839A (en) * | 2022-12-08 | 2023-05-02 | 广州华科环保工程有限公司 | Sewage treatment tank capable of rapidly removing nitrogen and phosphorus |
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