CN109111018B - Method for treating and recycling wastewater for nursery - Google Patents
Method for treating and recycling wastewater for nursery Download PDFInfo
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- CN109111018B CN109111018B CN201810878844.4A CN201810878844A CN109111018B CN 109111018 B CN109111018 B CN 109111018B CN 201810878844 A CN201810878844 A CN 201810878844A CN 109111018 B CN109111018 B CN 109111018B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004064 recycling Methods 0.000 title claims abstract description 10
- 239000010865 sewage Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002910 solid waste Substances 0.000 claims abstract description 35
- 238000004140 cleaning Methods 0.000 claims abstract description 34
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000012716 precipitator Substances 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 14
- 241000195493 Cryptophyta Species 0.000 claims abstract description 11
- 230000001954 sterilising effect Effects 0.000 claims abstract description 11
- 230000002262 irrigation Effects 0.000 claims abstract description 7
- 238000003973 irrigation Methods 0.000 claims abstract description 7
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 41
- 239000010802 sludge Substances 0.000 claims description 16
- 239000002699 waste material Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 7
- 235000016425 Arthrospira platensis Nutrition 0.000 claims description 6
- 240000002900 Arthrospira platensis Species 0.000 claims description 6
- 241000195663 Scenedesmus Species 0.000 claims description 6
- 229940082787 spirulina Drugs 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000009360 aquaculture Methods 0.000 claims description 3
- 244000144974 aquaculture Species 0.000 claims description 3
- 239000010840 domestic wastewater Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 3
- 241000224474 Nannochloropsis Species 0.000 claims 2
- 241000894006 Bacteria Species 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 9
- 244000005700 microbiome Species 0.000 abstract description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 3
- 241000700605 Viruses Species 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000607598 Vibrio Species 0.000 description 1
- 206010047400 Vibrio infections Diseases 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000010405 clearance mechanism Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
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- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a nursery garden wastewater treatment and recycling method.A cleaning mechanism arranged in a sewage tank can carry out primary filtration treatment on wastewater and solid waste, and the wastewater and the solid waste are separately treated, so that the subsequent filtration effect and the overall treatment efficiency are improved; and the wastewater on the upper layer of the precipitator and the wastewater filtered by the first filter are both conveyed to the second filter for filtration treatment again, then the wastewater is conveyed to the algae purification tank for purification treatment and then conveyed to the disinfection and sterilization tank for sterilization treatment, and the treated water is introduced into the sewage tank for reuse. The method simultaneously treats the wastewater in the sewage tank and the sewage after cleaning the sewage tank, and the treated circulating water does not contain dissolved organic matters, microorganisms and harmful bacteria, so that secondary pollution is avoided, the method can be used for commercial irrigation, and water resources are saved.
Description
Technical Field
The invention relates to the technical field of nurseries, in particular to a method for treating and recycling nursery wastewater.
Background
At present, the amount of waste water discharged by rainwater, aquaculture waste water and domestic water on the ground surface is very large, main pollutants in the waste water comprise ammonia nitrogen, nitrite, organic pollutants, phosphorus and fouling organisms, the ammonia nitrogen and hydrogen sulfide are the most common harmful substances in a seedling raising water body, the concentrations of the ammonia nitrogen and the hydrogen sulfide in the water body can be gradually increased along with the progress of seedling raising, the ammonia nitrogen is the excrement of aquatic organisms and is also the final product of the decomposition of nitrogenous organic matters such as residual feed, excrement and animal and plant corpses, and the hydrogen sulfide is formed by the decomposition of anaerobic bacteria under the anoxic condition of the sulfur-containing organic matters, so that the water quality and the substrate are spoiled to induce the mass propagation of pathogenic bacteria such as vibrios and the like, and diseases are caused. In view of the fact that the waste water contains a lot of dirt, such as solid waste residues like sludge, which can be collected from the ground surface, but contains a lot of solid garbage and solid sludge particles, and cannot be directly used for irrigation of nursery plants, which results in great waste of water resources, there is a need for an improved method for treating and recycling the nursery waste water.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a method for treating and recycling nursery wastewater, which contains no dissolved organic matters, microorganisms and harmful bacteria in treated circulating water.
In order to achieve the above object, the present invention adopts the following technical solutions:
a nursery garden wastewater treatment and reuse method comprises the following steps:
s1, collecting the aquaculture wastewater and the domestic wastewater into a sewage tank through pipelines; the sewage tank is internally provided with a cleaning device, the lower part of the left side wall of the sewage tank is provided with a sludge outlet, the middle part of the bottom of the sewage tank is provided with a water outlet, the interior of the sewage tank is fixedly provided with a filter screen plate with meshes, the cleaning device comprises a supporting mechanism, a stirring mechanism, a sludge scraping mechanism and a controller, the supporting mechanism comprises a left supporting plate and a right supporting plate, the left supporting plate and the right supporting plate are respectively fixed on the upper parts of the left side wall and the right side wall of the sewage tank through bolts, the inner sides of the left supporting plate and the right supporting plate are respectively provided with a corresponding first slide rail, the stirring mechanism comprises a first cross rod, a stirring rod fixed in the middle part of the bottom end of the first cross rod and a stirring motor in transmission connection with the top end of the stirring rod, the two ends of the first cross rod are respectively connected with first pulleys corresponding to the first slide rails, one of, the mud scraping mechanism comprises a second cross rod and a push rod, two ends of the second cross rod are respectively and fixedly arranged at the tops of the left support plate and the right support plate, a second slide rail is arranged at the bottom end of the second cross rod, a push knife is fixedly and vertically arranged at the bottom end of the push rod, a second pulley corresponding to the second slide rail is arranged at the top end of the push rod, the second pulley is connected with a second sliding motor, and the second pulley is slidably connected in the second slide rail so as to drive the push rod to move left and right;
s2, opening a water outlet valve and a water outlet pump at the water outlet, so that the wastewater flows into a wastewater pool from the water outlet;
s3, turning on the first sliding motor to enable the first cross rod to move downwards, turning on the stirring motor to start stirring the solid waste on the filter screen plate, wherein the stirring speed is 200-350 revolutions per minute, and the stirring time is 15-20 minutes;
s4, after stirring is completed, the stirring motor is turned off, the first sliding motor is turned off after the first cross rod is controlled to move upwards to the top end position through the first sliding motor, the second sliding motor is turned on, the push rod starts to move from the right end of the sewage pool to the left end, the push knife at the bottom end pushes solid waste on the filter screen plate to a sludge outlet, then the push rod moves rightwards to the rightmost end initial position, and the second sliding motor is turned off;
s5, enabling the solid waste to enter a waste mud pool through a mud outlet through a pipeline and then conveying the solid waste to a precipitator, wherein the solid waste is precipitated at the bottom of the precipitator, and the waste water floats on the upper layer of the precipitator;
s6, washing the interior of the sewage tank by using clear water, conveying the washed sewage to the sewage tank, mixing the wastewater and the sewage in the sewage tank, conveying the mixture to a first filter, performing solid-liquid separation treatment, and filtering small-particle solid wastes;
s7, conveying the wastewater on the upper layer of the precipitator and the wastewater filtered by the first filter into a second filter, filtering again, conveying the wastewater into an algae purification tank for purification, conveying into a disinfection and sterilization tank for sterilization, and introducing the treated water into a nursery for irrigation.
Preferably, aforementioned filter plate is the slope installation, and inclination is 5 ~ 10 degrees, and its left end is located mud outlet department, and the horizontal plane height of left end is less than the horizontal plane height of right-hand member, and the filter plate that the slope set up can make the solid waste on the top pass through mud outlet entering waste mud pond because of the dead weight more easily, and the bottom of broach and the upper surface in close contact with of filter plate can more effectually push away solid waste to mud outlet department.
Preferably, the aperture size of the mesh on the filter screen plate is 0.2-0.7 mm, so that the wastewater can fall below the filter screen plate, but the solid waste is blocked on the filter screen plate, and a primary filtering effect can be achieved, so that the subsequent filtering efficiency is improved.
More preferably, aforementioned cleaning device is still including being located the clear mud mechanism of filter plate below, clear mud mechanism includes third horizontal pole and clearance pole, the bottom of third horizontal pole is provided with the third slide rail, the both ends of third horizontal pole are fixed in the lower part of effluent water sump left side wall and right side wall respectively, the clearance brush is installed to the bottom of clearance pole, the top is provided with the third pulley, third pulley sliding connection is on the third slide rail, and be connected with third sliding motor, remove about with driving the clearance pole, the clearance brush under the clearance pole can further wash the effluent water sump bottom.
Further preferably, the bottom end of the cleaning rod is in close contact with the bottom end of the sewage pool, so that an effective cleaning effect can be guaranteed.
Preferably, in the step S6, before the step of flushing the wastewater tank with clean water, the method further includes a step of cleaning the bottom of the wastewater tank, wherein the third sliding motor is turned on, and the cleaning rod moves left and right to clean the dirt on the bottom of the wastewater tank.
Specifically, puddler and agitator motor that aforementioned first horizontal pole bottom set up all have a plurality ofly, equidistant evenly distributed each other, can open a plurality of puddlers simultaneously to improve the stirring effect to solid waste, disperse with the bold waste material that will bond together, be convenient for promote and flow from the mud outlet.
Preferably, in the step S7, the activated carbon layer, the microporous filter membrane layer and the ceramsite layer are sequentially arranged in the second filter according to the wastewater flowing direction, and the height of the ceramsite layer is 5-9 cm, so that microorganisms and harmful bacteria in the wastewater can be effectively reduced.
Still preferably, in the step S7, the algae purification pond includes spirulina, chlorella, scenedesmus, and chlorella, and the concentrations of spirulina, chlorella, scenedesmus, and chlorella are 3.2 × 105cells/mL, 4.9 × 105cells/mL, 4.2 × 105cells/mL, and 5.6 × 105cells/mL, respectively, and the algae purification pond can perform a certain disinfection function on the wastewater and reduce escherichia coli and toxic bacteria therein.
More preferably, in step S7, the wastewater is irradiated by ultraviolet rays with a wavelength of 2800 to 2900 angstroms for 15 to 22min, so as to effectively kill harmful bacteria and viruses in the wastewater.
The invention has the advantages that:
(1) according to the invention, the cleaning mechanism arranged in the sewage tank can be used for carrying out primary filtering treatment on the wastewater and the solid waste, so that the wastewater and the solid waste are separately treated, and the subsequent filtering effect and the overall treatment efficiency are improved;
(2) during the working process of the cleaning mechanism, the solid waste is stirred and then pushed down to the sludge outlet by the push rod, so that large waste blocks bonded together can be stirred, the push rod can be pushed and flowed out conveniently, and meshes and the sludge outlet of the filter screen plate are prevented from being blocked;
(3) the second filter can effectively reduce microorganisms and harmful bacteria in the wastewater; the algae purification pool can play a certain role in disinfecting the wastewater and reduce escherichia coli and toxic bacteria in the wastewater; the disinfection and sterilization pool can effectively kill harmful bacteria and viruses in the wastewater;
(4) the invention treats the wastewater in the sewage pool and the sewage after cleaning the sewage pool simultaneously, and the treated circulating water does not contain dissolved organic matters, microorganisms and harmful bacteria, thereby avoiding secondary pollution, being applicable to irrigation of nurseries and saving water resources.
Drawings
FIG. 1 is a schematic diagram of the operative connection of the present invention.
The meaning of the reference symbols in the figures: 1. the sewage pool, 2, filter screen board, 3, left branch fagging, 4, right branch fagging, 5, first horizontal pole, 6, puddler, 7, second horizontal pole, 8, push rod, 9, push-type broach, 10, third horizontal pole, 11, clearance pole, 12, wastewater disposal basin, 13, useless mud pond, 14, precipitator, 15, first filter, 16, second filter, 17, algae purification tank, 18, disinfection and sterilization pond, 101, mud outlet, 102, delivery port.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
Referring to fig. 1, the method for treating and recycling nursery garden wastewater according to the present invention includes installing a cleaning device in a wastewater tank 1, where a sludge outlet 101 is formed in a lower portion of a left side wall of the wastewater tank 1, a water outlet 102 is formed in a middle portion of a bottom end of the wastewater tank, a filter screen plate 2 with meshes is fixedly installed inside the wastewater tank, the cleaning device includes a supporting mechanism, a stirring mechanism, a sludge scraping mechanism and a controller (not shown), the supporting mechanism includes a left supporting plate 3 and a right supporting plate 4, the left supporting plate 3 and the right supporting plate 4 are respectively fixed to upper portions of the left side wall and the right side wall of the wastewater tank 1 by bolts, corresponding first sliding rails (not shown) are respectively installed inside the left supporting plate 3 and the right supporting plate 4, the stirring mechanism includes a first cross bar 5, a stirring bar 6 fixed to the middle portion of the bottom end of the first cross bar 5, and a stirring motor (not shown) drivingly connected to the top end of the stirring bar 6, both ends of the, one of the first pulleys is connected with a first sliding motor (not shown), and the first pulley is connected in the first sliding rail in a sliding manner so as to drive the first cross rod 5 to move up and down.
The filter screen plate 2 is installed in an inclined mode, the inclination angle is 5-10 degrees, the left end of the filter screen plate is located at the sludge outlet 101, the horizontal height of the left end is lower than that of the right end, and the filter screen plate 2 arranged in an inclined mode enables solid waste on the upper side to enter the waste sludge tank through the sludge outlet 101 due to dead weight.
The mud scraping mechanism comprises a second cross rod 7 and a push rod 8, the two ends of the second cross rod 7 are respectively and fixedly arranged at the tops of the left support plate 3 and the right support plate 4, a second slide rail (not shown) is arranged at the bottom end of the second cross rod 7, a push knife 9 is vertically arranged at the bottom end of the push rod 8, a second pulley (not shown) corresponding to the second slide rail is arranged at the top end of the push rod, the second pulley is connected with a second sliding motor (not shown), the second pulley is connected with the second slide rail in a sliding manner, the push rod 8 is driven to move left and right, the bottom end of the push knife 9 is in close contact with the upper surface of the filter screen plate 2, and solid wastes can be more effectively pushed to the. The aperture size of the mesh on the filter screen plate 2 is 0.2-0.7 mm, so that the wastewater can fall below the filter screen plate 2, but the solid waste is blocked on the filter screen plate 2, and a primary filtering effect can be achieved, so that the subsequent filtering efficiency is improved.
Cleaning device is still including being located the mud cleaning mechanism of filter plate 2 below, mud cleaning mechanism includes third horizontal pole 10 and clearance pole 11, the bottom of third horizontal pole 10 is provided with third slide rail (not shown), the both ends of third horizontal pole are fixed in the lower part of 1 left side wall of effluent water sump and right side wall respectively, the clearance brush is installed to the bottom of clearance pole 11, the top is provided with third pulley (not shown), third pulley sliding connection is on the third slide rail, and be connected with third sliding motor (not shown), in order to drive removing about clearance pole 11, the clearance brush under clearance pole 11 can further wash 1 bottom of effluent water sump, the bottom of clearance pole 11 and the bottom in close contact with of effluent water sump 1, can guarantee effectual clearance effect.
The controller is connected with the stirring motor, the first sliding motor, the second sliding motor and the third sliding motor through leads respectively, and can control the work of the supporting mechanism, the stirring mechanism, the mud scraping mechanism and the mud cleaning mechanism respectively.
The treatment of wastewater comprises the following steps:
s1, collecting the culture wastewater and the domestic wastewater into a sewage pool through pipelines, and installing a cleaning device;
s2, opening a water outlet valve and a water outlet pump at the water outlet 102, so that the wastewater flows into the wastewater tank 12 from the water outlet 102;
s3, turning on the first sliding motor to enable the first cross rod 5 to move downwards, turning on the stirring motor to start stirring the solid waste on the filter screen plate 2, wherein the stirring speed is 200-350 revolutions per minute, and the stirring time is 15-20 min;
s4, after stirring is completed, the stirring motor is closed, the first sliding motor is closed after the first cross rod 5 is controlled to move upwards to the top end position through the first sliding motor, the second sliding motor is started, the push rod 8 starts to move from the right end to the left end of the sewage pool 1, the push knife 9 at the bottom end pushes the solid waste on the filter screen plate 2 to the sludge outlet 101, then the push rod 8 moves rightwards to the rightmost end initial position, and the second sliding motor is closed;
s5, enabling the solid waste to enter the waste mud tank 13 through the mud outlet 101 through a pipeline and then conveying the solid waste to the precipitator 14, wherein the solid waste is precipitated at the bottom of the precipitator 14, and the waste water floats on the upper layer of the precipitator 14;
s6, washing the interior of the sewage tank 1 with clear water, conveying the washed sewage to the sewage tank 12, mixing the sewage and the wastewater in the sewage tank 12, conveying the mixture to the first filter 15, performing solid-liquid separation treatment, and filtering out small-particle solid wastes;
s7, the wastewater on the upper layer of the precipitator 14 and the wastewater filtered by the first filter 15 are all conveyed to the second filter 16 for filtration treatment again, then the wastewater is conveyed to the algae purification tank 17 for purification treatment and then conveyed to the disinfection and sterilization tank 18 for sterilization treatment, and the treated water is introduced into a nursery for irrigation.
Specifically, puddler 6 and agitator motor that aforementioned 5 bottom ends of first horizontal pole set up all have a plurality ofly, equidistant evenly distributed each other, can open a plurality of puddlers 6 simultaneously to improve the stirring effect to solid waste, in order to disperse the bold waste material that will bond together, be convenient for promote and flow from mud outlet 101.
Wherein, the second filter 16 is internally provided with an activated carbon layer, a microporous filter membrane layer and a ceramsite layer in sequence according to the flow direction of the wastewater, and the height of the ceramsite layer is 5-9 cm, so that microorganisms and harmful bacteria in the wastewater can be effectively reduced; the algae purifying pond 17 contains Spirulina, Chlorella, Scenedesmus and Chlorococcus, and the concentrations of Spirulina, Chlorella, Scenedesmus and Chlorococcus are 3.2 × 105cells/mL、4.9×105cells/mL、4.2×105cells/mL and 5.6X 105cells/mL, the algae purification tank 17 can play a certain disinfection role on the wastewater and reduce escherichia coli and toxic bacteria in the wastewater; the disinfection and sterilization pool 18 radiates the wastewater by ultraviolet rays with the wavelength of 2800-2900 angstroms for 15-22 min, and can effectively kill harmful bacteria and viruses in the wastewater.
According to the invention, the cleaning mechanism arranged in the sewage tank 1 can be used for carrying out primary filtering treatment on the wastewater and the solid waste, so that the wastewater and the solid waste are separately treated, and the subsequent filtering effect and the overall treatment efficiency are improved; after stirring solid waste earlier in clearance mechanism's working process, reuse push rod 8 pushes away it and goes out mud mouth 101, can stir the bold waste matter that bonds together, and the promotion and the outflow of the push rod 8 of being more convenient for avoid blockking up filter plate 2's mesh and mud mouth 101.
The invention treats the wastewater in the sewage pool 1 and the sewage after cleaning the sewage pool 1 at the same time, the treated circulating water does not contain dissolved organic matters, microorganisms and harmful bacteria, thereby avoiding secondary pollution, and the circulating water can also be introduced into a nursery for irrigation, thereby saving water resources.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. A nursery garden wastewater treatment and reuse method is characterized by comprising the following steps:
s1, collecting the aquaculture wastewater and the domestic wastewater into a sewage tank through pipelines; the sewage tank is internally provided with a cleaning device, the lower part of the left side wall of the sewage tank is provided with a sludge outlet, the middle part of the bottom of the sewage tank is provided with a water outlet, the interior of the sewage tank is fixedly provided with a filter screen plate with meshes, the cleaning device comprises a supporting mechanism, a stirring mechanism, a sludge scraping mechanism and a controller, the supporting mechanism comprises a left supporting plate and a right supporting plate, the left supporting plate and the right supporting plate are respectively fixed on the upper parts of the left side wall and the right side wall of the sewage tank through bolts, the inner sides of the left supporting plate and the right supporting plate are respectively provided with a corresponding first slide rail, the stirring mechanism comprises a first cross rod, a stirring rod fixed in the middle part of the bottom end of the first cross rod and a stirring motor in transmission connection with the top end of the stirring rod, the two ends of the first cross rod are respectively connected with first pulleys corresponding to the first slide rails, one of, the mud scraping mechanism comprises a second cross rod and a push rod, two ends of the second cross rod are respectively and fixedly arranged at the tops of the left support plate and the right support plate, a second slide rail is arranged at the bottom end of the second cross rod, a push knife is fixedly and vertically arranged at the bottom end of the push rod, a second pulley corresponding to the second slide rail is arranged at the top end of the push rod, the second pulley is connected with a second sliding motor, and the second pulley is slidably connected in the second slide rail so as to drive the push rod to move left and right;
s2, opening a water outlet valve and a water outlet pump at the water outlet, so that the wastewater flows into a wastewater pool from the water outlet;
s3, turning on the first sliding motor to enable the first cross rod to move downwards, turning on the stirring motor to start stirring the solid waste on the filter screen plate, wherein the stirring speed is 200-350 revolutions per minute, and the stirring time is 15-20 minutes;
s4, after stirring is completed, the stirring motor is turned off, the first sliding motor is turned off after the first cross rod is controlled to move upwards to the top end position through the first sliding motor, the second sliding motor is turned on, the push rod starts to move from the right end of the sewage pool to the left end, the push knife at the bottom end pushes solid waste on the filter screen plate to a sludge outlet, then the push rod moves rightwards to the rightmost end initial position, and the second sliding motor is turned off;
s5, enabling the solid waste to enter a waste mud pool through a mud outlet through a pipeline and then conveying the solid waste to a precipitator, wherein the solid waste is precipitated at the bottom of the precipitator, and the waste water floats on the upper layer of the precipitator;
s6, washing the interior of the sewage tank by using clear water, conveying the washed sewage to the sewage tank, mixing the wastewater and the sewage in the sewage tank, conveying the mixture to a first filter, performing solid-liquid separation treatment, and filtering small-particle solid wastes;
s7, conveying the wastewater on the upper layer of the precipitator and the wastewater filtered by the first filter into a second filter, filtering again, conveying the wastewater into an algae purification tank for purification, conveying into a disinfection and sterilization tank for sterilization, and introducing the treated water into a nursery for irrigation.
2. The method as claimed in claim 1, wherein the filter screen is installed in an inclined manner at an angle of 5 to 10 degrees, the left end of the filter screen is located at the mud outlet, the horizontal level of the left end is lower than that of the right end, and the bottom end of the push knife is in close contact with the upper surface of the filter screen.
3. The method for treating and recycling nursery garden wastewater as claimed in claim 2, wherein the mesh size of the filter screen plate is 0.2-0.7 mm.
4. The method as claimed in claim 1, wherein the cleaning device further comprises a mud cleaning mechanism located below the filter screen plate, the mud cleaning mechanism comprises a third cross bar and a cleaning rod, a third slide rail is arranged at the bottom end of the third cross bar, two ends of the third cross bar are respectively fixed at the lower parts of the left side wall and the right side wall of the wastewater tank, a cleaning brush is arranged at the bottom end of the cleaning rod, a third pulley is arranged at the top end of the cleaning rod, the third pulley is slidably connected to the third slide rail, and a third sliding motor is connected to the third sliding motor so as to drive the cleaning rod to move left and right.
5. The method of claim 4, wherein the lower end of the cleaning rod is in close contact with the lower end of the wastewater tank.
6. The method of claim 5, wherein the step S6, before the step of flushing the wastewater tank with clean water, further comprises the step of cleaning the bottom of the wastewater tank, turning on the third sliding motor, and moving the cleaning rod to the left or right to clean the dirt on the bottom of the wastewater tank.
7. The method as claimed in claim 1, wherein the stirring rods and the stirring motors are provided at the bottom of the first cross bar and are uniformly distributed at equal intervals.
8. The method of claim 1, wherein in step S7, the second filter comprises an activated carbon layer, a microporous filter membrane layer, and a ceramic layer, the height of the ceramic layer is 5-9 cm, and the activated carbon layer, the microporous filter membrane layer, and the ceramic layer are sequentially disposed in the wastewater flowing direction.
9. A nursery according to claim 1The method for treating and recycling wastewater is characterized in that in step S7, the algae purification pond comprises spirulina, chlorella, scenedesmus and nannochloropsis, and the concentrations of the spirulina, the chlorella, the scenedesmus and the nannochloropsis are respectively 3.2 x 105cells/mL、4.9×105cells/mL、4.2×105cells/mL and 5.6X 105cells/mL。
10. The method for treating and recycling nursery garden wastewater as claimed in claim 1, wherein in step S7, the wastewater is irradiated with ultraviolet rays having a wavelength of 2800 to 2900 angstroms for 15 to 22 min.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5587067A (en) * | 1995-06-21 | 1996-12-24 | Sydlo Inc. | Wastewater treatment apparatus |
| CN105084645A (en) * | 2015-07-17 | 2015-11-25 | 浙江省海洋水产研究所 | Mariculture wastewater treatment process |
| CN206525357U (en) * | 2017-01-12 | 2017-09-29 | 廖秀恒 | A kind of water treatment facilities used for aquiculture |
| CN207153229U (en) * | 2017-07-03 | 2018-03-30 | 天津北方创业市政工程集团有限公司 | A kind of municipal wastewater processing unit |
| CN207192919U (en) * | 2017-08-19 | 2018-04-06 | 珠海恒盛达环保科技有限公司 | A kind of slaughterhouse's sewage treatment equipment |
| CN107915369A (en) * | 2017-09-26 | 2018-04-17 | 朱智慧 | A kind of industrial waste water disposal device |
| CN108328763A (en) * | 2018-02-02 | 2018-07-27 | 李明科 | A kind of sewage-treatment plant |
| CN108341519A (en) * | 2018-03-15 | 2018-07-31 | 铜仁学院 | A kind of device for chemical engineering wastewater treatment |
-
2018
- 2018-08-03 CN CN201810878844.4A patent/CN109111018B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5587067A (en) * | 1995-06-21 | 1996-12-24 | Sydlo Inc. | Wastewater treatment apparatus |
| CN105084645A (en) * | 2015-07-17 | 2015-11-25 | 浙江省海洋水产研究所 | Mariculture wastewater treatment process |
| CN206525357U (en) * | 2017-01-12 | 2017-09-29 | 廖秀恒 | A kind of water treatment facilities used for aquiculture |
| CN207153229U (en) * | 2017-07-03 | 2018-03-30 | 天津北方创业市政工程集团有限公司 | A kind of municipal wastewater processing unit |
| CN207192919U (en) * | 2017-08-19 | 2018-04-06 | 珠海恒盛达环保科技有限公司 | A kind of slaughterhouse's sewage treatment equipment |
| CN107915369A (en) * | 2017-09-26 | 2018-04-17 | 朱智慧 | A kind of industrial waste water disposal device |
| CN108328763A (en) * | 2018-02-02 | 2018-07-27 | 李明科 | A kind of sewage-treatment plant |
| CN108341519A (en) * | 2018-03-15 | 2018-07-31 | 铜仁学院 | A kind of device for chemical engineering wastewater treatment |
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