CN222389681U - Cultivation wastewater up-to-standard discharge treatment device - Google Patents
Cultivation wastewater up-to-standard discharge treatment device Download PDFInfo
- Publication number
- CN222389681U CN222389681U CN202420823670.2U CN202420823670U CN222389681U CN 222389681 U CN222389681 U CN 222389681U CN 202420823670 U CN202420823670 U CN 202420823670U CN 222389681 U CN222389681 U CN 222389681U
- Authority
- CN
- China
- Prior art keywords
- treatment unit
- sludge
- tank
- water
- oxidation treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a standard discharge treatment device for cultivation wastewater, which comprises a mud storage tank, a solid-liquid separator, a raw material tank, an adjusting tank and an integrated cultivation wastewater treatment device, wherein the integrated cultivation wastewater treatment device comprises an up-flow anaerobic granular sludge treatment unit, an activated sludge treatment unit, a short-cut nitrification-anaerobic ammonia oxidation treatment unit and a contact oxidation treatment unit, and the short-cut nitrification-anaerobic ammonia oxidation treatment unit improves the activity of the mud by forming hydroxyapatite carrier type anaerobic ammonia oxidation granular sludge and realizes synchronous denitrification and phosphorus recovery. According to the utility model, the inclined tube assemblies and the hollow folded plate type precipitators are arranged in each unit of the integrated treatment device, so that the water conservancy precipitating conditions are improved, the precipitating effect is improved, and the effluent can meet the pollutant emission standard of livestock and poultry farming. The integrated device has the advantages of compact structure, small occupied area, small aeration quantity, low sludge yield and synchronous phosphorus resource recovery of low-carbon denitrification.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a device for treating standard discharge of aquaculture wastewater.
Background
The intensive cultivation produces a great amount of livestock and poultry manure. In the areas with insufficient matched land, the cultivation wastewater is reasonably treated and disposed to reach the pollutant emission standard of livestock and poultry cultivation industry, and then is discharged.
The cultivation wastewater is different from other types of wastewater, and has typical three-high characteristics of high suspended solids (3000-10000 mg/L), high organic matters (10000-20000 mg/L) and high ammonia nitrogen (300-1000 mg/L). The discharge standard of the cultivation wastewater requires that the cultivation wastewater is treated to obtain water organic matters (COD) of <400mg/L, suspended Solids (SS) of <200mg/L, ammonia nitrogen (NH 4 + -N) of <80mg/L and Total Phosphorus (TP) of <8mg/L. Therefore, the developed standard emission treatment process can remove COD, SS, NH 4 + -N and TP simultaneously, and all indexes reach higher removal rate. Meanwhile, the developed process can meet the practical requirements of energy conservation, low carbon, convenient operation and occupation area saving.
At present, the traditional treatment method generally refers to the urban sewage treatment process, and adopts the process mainly comprising anaerobic-aerobic alternating-biochemical pond treatment, and the process has the defects of more treatment units, long flow, large occupied area, large aeration amount, high energy consumption and high sludge yield. In addition, some of the prior art adopts anaerobic membrane treatment processes, the process operation management is difficult due to easy blockage of the membrane, and in addition, the membrane belongs to consumable materials and needs to be replaced periodically, so that the operation cost is increased.
In view of this, the present utility model has been made.
Disclosure of utility model
The utility model aims to provide a device for treating the standard discharge of cultivation wastewater, and the effluent can meet the emission standard of pollutants in livestock and poultry cultivation industry (GB 18596-2001) and the water quality standard of farm irrigation (GB 5084-2021). The integrated treatment device has the advantages of compact structure, small occupied area, small required aeration amount, low energy consumption, small mud yield, low carbon denitrification and phosphorus recovery.
In order to achieve the above object of the present utility model, the following technical solutions are specifically adopted:
The utility model provides a standard discharge treatment device for cultivation wastewater, which comprises a sludge storage tank, a solid-liquid separator, a raw liquid tank, an adjusting tank and an integrated cultivation wastewater treatment device, wherein the integrated cultivation wastewater treatment device comprises an up-flow anaerobic granular sludge treatment unit, an activated sludge treatment unit, a short-cut nitrification-anaerobic ammonia oxidation treatment unit and a contact oxidation treatment unit;
the bottom of the mud storage tank is provided with a first submersible sewage pump, and an outlet of the first submersible sewage pump is connected with the solid-liquid separator;
the bottom of the raw liquid pool is provided with a second submersible sewage pump, an outlet of the second submersible sewage pump is connected with the regulating pool, the regulating pool is communicated with the upflow anaerobic granular sludge treatment unit, and a baffle plate and a heating rod are arranged inside the regulating pool;
The upflow anaerobic granular sludge treatment unit is provided with a first water inlet, a first emptying port and a first sludge discharge port at the bottom, a three-phase separator and a first inclined tube component above the three-phase separator are arranged in the middle, an exhaust hole, a water collecting tank and a first drainage tank communicated with the water collecting tank are arranged at the upper part, the top of the upflow anaerobic granular sludge treatment unit is provided with an exhaust pipe, the first water inlet is communicated with the regulating tank through a water inlet pipe, the first sludge discharge port is communicated with the sludge storage tank, and the first drainage tank is communicated with the activated sludge treatment unit through a water pipe;
the bottom of the activated sludge treatment unit is provided with a first group of aeration openings, a second emptying opening and a second sludge discharge opening, one side of the middle part is provided with a first inclined plate, the upper part is provided with a first hollow folded plate which extends downwards, the first hollow folded plate, the first inclined plate and the inner wall of the activated sludge treatment unit form a first closed space, the outer wall of the upper part of the first hollow folded plate is provided with a second water inlet, the lower part is open and a first opening is arranged between the lower part and the first inclined plate;
The bottom of the short-cut nitrification-anaerobic ammonia oxidation treatment unit is provided with a second group of aeration openings, a third emptying opening and a fourth sludge discharge opening, one side of the middle part is provided with a second inclined plate, the upper part is provided with a second hollow folded plate which extends downwards, the second hollow folded plate, the second inclined plate and the inner wall of the short-cut nitrification-anaerobic ammonia oxidation treatment unit form a second closed space, the outer wall of the upper part of the second hollow folded plate is provided with a third water inlet, the lower part is open and a second opening is arranged between the lower part and the second inclined plate, the side wall of the bottom of the second closed space is provided with a fifth sludge discharge opening, the upper part is provided with a third water discharge groove, and the third water discharge groove is communicated with the contact oxidation treatment unit through a water pipe;
The bottom of the contact oxidation treatment unit is provided with a third group of aeration openings, a fourth emptying opening and a sixth sludge discharge opening, one side of the middle part is provided with a third inclined plate, the upper part is provided with a third hollow folded plate extending downwards, the third hollow folded plate, the third inclined plate and the inner wall of the contact oxidation treatment unit form a third closed space, the outer wall of the upper part of the third hollow folded plate is provided with a fourth water inlet, the lower part is open and a third opening is arranged between the lower part and the third inclined plate, the side wall of the bottom of the third closed space is provided with a seventh sludge discharge opening, and the upper part is provided with a fourth water discharge groove.
Preferably, the integrated cultivation wastewater treatment device further comprises a circulating pump, wherein an inlet of the circulating pump is communicated with the outer wall above the three-phase separator in the upflow anaerobic granular sludge treatment unit through a water pipe, and an outlet of the circulating pump is communicated with the water inlet pipe.
Preferably, a packing is further arranged in the contact oxidation treatment unit, and the packing is located in the middle of the contact oxidation treatment unit and located on one side of the third enclosed space.
Preferably, the second sludge discharge port, the third sludge discharge port, the fourth sludge discharge port, the fifth sludge discharge port, the sixth sludge discharge port and the seventh sludge discharge port are respectively communicated with the water inlet pipe through a first sludge discharge pump.
Preferably, the culture wastewater standard discharge treatment device further comprises a first dosing tank and a second dosing tank, wherein the first dosing tank is connected with the short-cut nitrification-anaerobic ammonia oxidation treatment unit, and the second dosing tank is connected with the solid-liquid separator.
The second aspect of the utility model provides a cultivation wastewater treatment method based on the cultivation wastewater standard discharge treatment device, which comprises the following steps:
(a) Discharging the culture manure into a mud storage pond, pumping the culture manure into a solid-liquid separator for solid-liquid separation, and separating culture wastewater into a raw liquid pond for storage;
(b) Pumping the culture wastewater in the raw material pond into an adjusting pond, inoculating anaerobic granular sludge at the bottom of an up-flow anaerobic granular sludge treatment unit, heating and then pumping into the up-flow anaerobic granular sludge treatment unit for anaerobic treatment if the temperature of the culture wastewater in the adjusting pond is lower than 10 ℃, intermittently starting a circulating pump, keeping the anaerobic granular sludge in a fluid state, preventing the anaerobic granular sludge from hardening, and affecting the anaerobic treatment effect;
(c) Inoculating first activated sludge at the bottom of the activated sludge treatment unit, discharging effluent in the upflow anaerobic granular sludge treatment unit into the activated sludge treatment unit through a water pipe communicated with a first drainage tank for treatment, and simultaneously aerating through a first group of aeration ports;
(d) Inoculating nitrified sludge and anaerobic ammonia oxidation granular sludge at the bottom of the short-cut nitrified-anaerobic ammonia oxidation treatment unit, discharging effluent in the activated sludge treatment unit into the short-cut nitrified-anaerobic ammonia oxidation treatment unit for treatment through a water pipe communicated with a second drainage tank, and simultaneously adding calcium chloride through a first dosing tank and aerating through a second group of aeration ports;
(e) Inoculating second activated sludge at the bottom of the contact oxidation treatment unit, discharging the effluent in the short-cut nitrification-anaerobic ammonia oxidation treatment unit into the contact oxidation treatment unit for treatment through a water pipe communicated with a third water drainage tank, aerating through a third group of aeration ports, and finally discharging the treated water through a fourth water drainage tank.
Preferably, in the step (b), the inoculation amount of the anaerobic granular sludge is half of the volume below the three-phase separator in the upflow anaerobic granular sludge treatment unit;
The hydraulic retention time in the upflow anaerobic granular sludge treatment unit is 2d.
Preferably, in the step (c), the first activated sludge is activated sludge of a municipal sewage plant, and the inoculation amount of the first activated sludge is half of the effective volume inside the activated sludge treatment unit;
the hydraulic retention time in the activated sludge treatment unit is 2d;
the aeration rate of the wastewater per cubic meter is 20-202 m 3.
Preferably, in the step (d), nitrified sludge is nitrified Chi Wuni of an urban sewage treatment plant, the inoculation amount is 0.2-0.3 times of the effective volume of a biological reaction zone of a short-cut nitrifying-anaerobic ammonia oxidation unit, the inoculation amount of anaerobic ammonia oxidation granular sludge is=Q (C Feeding in －C out of )/1000S, wherein Q is the treated water amount, m 3/d,CFeeding in is the inlet ammonia nitrogen concentration, C out of is the outlet ammonia nitrogen concentration required by outlet water, mg/L, S is the activity of inoculated anaerobic ammonia oxidation granular sludge, kg N/Kg VSS.d, the addition amount of calcium chloride is not more than 100mg/L, and the granular sludge obtained by the short-cut nitrifying-anaerobic ammonia oxidation unit is anaerobic ammonia oxidation granular sludge generated based on hydroxyapatite and can be recycled as phosphate fertilizer;
DO in the short-cut nitrification-anaerobic ammonia oxidation treatment unit is not more than 0.5mg/L;
the hydraulic retention time of the short-cut nitrification-anaerobic ammonia oxidation treatment unit is 1d;
The aeration rate of the wastewater per cubic meter is 5.52-91.2 m 3.
Preferably, in the step (e), the second activated sludge is activated sludge of an urban domestic sewage treatment plant, and the inoculation amount of the second activated sludge is 0.4-0.6 times of the effective volume of a reaction zone of a contact oxidation unit;
the hydraulic retention time in the contact oxidation treatment unit is 1d;
The aeration rate of wastewater per cubic unit is 2.7-20.4m 3.
Compared with the prior art, the utility model has the beneficial effects that at least:
The utility model firstly adopts the inclined tube component arranged on the upflow anaerobic granular sludge treatment unit to strengthen removal of COD and SS, and lightens the organic load in the inflow water entering the activated sludge treatment unit, thereby improving the quality of the outflow water of the activated sludge treatment unit and being beneficial to improving the denitrification efficiency of the short-cut nitrification-anaerobic ammonia oxidation unit. The integrated treatment device for the cultivation wastewater realizes synchronous denitrification and phosphorus recovery through the hydroxyapatite carrier type anaerobic ammonia oxidation granular sludge formed by the short-cut nitrification-anaerobic ammonia oxidation treatment unit, and meanwhile, the hydroxyapatite carrier type anaerobic ammonia oxidation granular sludge has the characteristic of high precipitation efficiency, and can prevent the loss of the anaerobic ammonia oxidation granular sludge with slow increment, thereby improving the anaerobic ammonia oxidation denitrification effect and finally realizing the aim of up-to-standard emission. Finally, in the integrated treatment device for the aquaculture wastewater, the inclined tube assembly and the hollow folded plate type precipitator are arranged on the upflow anaerobic granular sludge treatment unit, the activated sludge treatment unit, the short-cut nitrification-anaerobic ammonia oxidation treatment unit and the contact oxidation treatment unit, so that the hydraulic condition of precipitation is improved, and the precipitation effect is improved. Specifically, in the integrated treatment device for the aquaculture wastewater, the hollow folded plates of the activated sludge unit, the short-cut nitrification-anaerobic ammonia oxidation treatment unit and the contact oxidation treatment unit are of a double-layer structure with the inner part high and the outer part low, and the inlet water of the precipitator enters from the bottom of the precipitator through the water inlet holes of the outer wall along the interlayer of the inner wall and the outer wall, so that the disturbance effect of water flow in the precipitation process is reduced, the precipitation hydraulic condition is improved, and the precipitation effect is improved. In addition, in the integrated treatment device for the aquaculture wastewater, the water outlet effect is enhanced by arranging the inclined plate component in the upflow anaerobic granular sludge treatment unit and the activated sludge treatment unit precipitator. The integrated treatment device has the advantages of compact structure, small occupied area, synchronous denitrification and phosphorus recovery, small aeration amount and small sludge yield. The effluent can reach the emission standard of pollutants in livestock and poultry industry (GB 18596-2001) and the water quality standard of farm irrigation (GB 5084-2021).
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a device for treating standard discharge of cultivation wastewater in an embodiment of the utility model.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the embodiments. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
The following examples used the following raw materials:
Anaerobic granular sludge which is derived from a UASB biogas engineering reactor with stable operation;
the first activated sludge and the second activated sludge are sourced from a Yang Lingwu water treatment plant secondary sedimentation tank;
nitrified sludge is sourced from a Yang Lingwu water treatment plant nitrifying pond;
The activity of the anaerobic ammonia oxidation granular sludge is 0.3kg N/kg VSS.d, and the anaerobic ammonia oxidation granular sludge is derived from a stably-running anaerobic ammonia oxidation reactor.
The embodiment of the utility model provides a device for treating standard discharge of cultivation wastewater, which is shown in fig. 1, and comprises a mud storage tank 1, a solid-liquid separator 2, a stock solution tank 3, an adjusting tank 4 and an integrated cultivation wastewater treatment device, wherein the integrated cultivation wastewater treatment device comprises an up-flow anaerobic granular mud treatment unit 5, an activated sludge treatment unit 6, a short-cut nitrification-anaerobic ammonia oxidation treatment unit 7, a contact oxidation treatment unit 8, a first dosing tank 9 and a second dosing tank 10;
The bottom of the sludge storage tank 1 is provided with a first submersible sewage pump 11, and an outlet of the first submersible sewage pump 11 is connected with a sludge outlet pipe which is connected with a sludge inlet of the solid-liquid separator 2;
The outlet of the second dosing tank 10 is connected with the inlet of the first dosing pump 101, the outlet of the first dosing pump 101 is connected with the solid-liquid separator 2 through a water pipe, and the liquid outlet of the solid-liquid separator 2 is communicated with the raw liquid pool 3 through a pipeline;
The bottom of the raw liquid pool 3 is provided with a second submersible sewage pump 31, the outlet of the second submersible sewage pump 31 is connected with a water outlet pipe, the other end of the water outlet pipe is connected with a first water inlet pump 32, a valve is arranged on the water outlet pipe, the water outlet of the first water inlet pump 32 is connected with the regulating pool 4 through a water pipe, and the water pipe is provided with a valve;
The regulating tank 4 is communicated with the upflow anaerobic granular sludge treatment unit 5 through a water pipe, a second water inlet pump 41 and a first flowmeter 42 are arranged between the two, and a baffle (not shown) and a heating rod 43 are arranged inside the regulating tank 4;
The bottom of the upflow anaerobic granular sludge treatment unit 5 is provided with a first water inlet 51, a first emptying port 52 and a first sludge discharge port 53, the middle part is provided with a three-phase separator 54 and a first inclined pipe assembly 55 above the three-phase separator 54, the upper part is provided with an air discharge hole 56, a water collecting tank 57 and a first drainage tank 58 communicated with the water collecting tank 57, the top of the upflow anaerobic granular sludge treatment unit 5 is provided with an exhaust pipe which is used for being connected with the air discharge hole 56 (not shown), the first water inlet 51 is communicated with the regulating tank 4 through an inlet pipe 59, the first sludge discharge port 53 is communicated with the sludge storage tank 1, a second sludge pump 12 and a second flowmeter 13 are arranged between the first sludge discharge port 53 and the sludge storage tank 1, the first drainage tank 58 is communicated with the activated sludge treatment unit 6 through a water pipe, and the air outlet of the three-phase separator 54 is communicated with the air discharge hole 56;
The bottom of the activated sludge treatment unit 6 is provided with a first group of aeration openings 61, a second emptying opening 62 and a second sludge discharge opening 63, one side of the middle part is provided with a first inclined plate 64, the upper part is provided with a first hollow folded plate 65 which extends downwards, the first hollow folded plate 65, the first inclined plate 64 and the inner wall of the activated sludge treatment unit 6 form a first closed space 66, the outer wall of the upper part of the first hollow folded plate 65 is provided with a second water inlet 67, the lower part is open and a first opening 68 is arranged between the lower part and the first inclined plate 64, the middle part in the first closed space 66 is provided with a second inclined tube assembly 69, the side wall of the bottom is provided with a third sludge discharge opening 610, the upper part is provided with a second water discharge groove 611, and the second water discharge groove 611 is communicated with the short-cut nitrification-anaerobic ammonia oxidation treatment unit 7 through a water tube;
The bottom of the short-cut nitrification-anaerobic ammonia oxidation treatment unit 7 is provided with a second group of aeration openings 71, a third emptying opening 72 and a fourth sludge discharge opening 73, one side of the middle part is provided with a second inclined plate 74, the upper part is provided with a second hollow folded plate 75 which extends downwards, the second hollow folded plate 75, the second inclined plate 74 and the inner wall of the short-cut nitrification-anaerobic ammonia oxidation treatment unit 7 form a second closed space 76, the outer wall of the upper part of the second hollow folded plate is provided with a third water inlet 77, the lower part is open and a second opening 78 is arranged between the lower part and the second inclined plate 74, the side wall of the bottom of the second closed space 76 is provided with a fifth sludge discharge opening 710, the upper part is provided with a third water discharge groove 711, and the third water discharge groove 711 is communicated with the contact oxidation treatment unit 8 through a water pipe;
The outlet of the first dosing tank 9 is connected with the inlet of the second dosing pump 91, and the outlet of the second dosing pump 91 is connected with the short-cut nitrification-anaerobic ammonia oxidation treatment unit 7 through a water pipe;
The bottom of the contact oxidation treatment unit 8 is provided with a third group of aeration openings 81, a fourth emptying opening 82 and a sixth sludge discharge opening 83, one side of the middle part is provided with a third inclined plate 84, the upper part is provided with a third hollow folded plate 85 extending downwards, a third closed space 86 is formed by the third hollow folded plate 85, the third inclined plate 84 and the inner wall of the contact oxidation treatment unit 8, the outer wall of the upper part of the third hollow folded plate 85 is provided with a fourth water inlet 87, the lower part is open and a third opening 88 is arranged between the lower part and the third inclined plate 84, the side wall of the bottom of the third closed space is provided with a seventh sludge discharge opening 810, and the upper part is provided with a fourth water discharge groove 811.
In one embodiment, the integrated aquaculture wastewater treatment apparatus further comprises a circulation pump 10, wherein the inlet of the circulation pump 10 is communicated with the outer wall above the three-phase separator 54 in the upflow anaerobic granular sludge treatment unit 5 through a water pipe, and the outlet is communicated with a water inlet pipe 59 with a third flowmeter 14 arranged therebetween. By the arrangement of the circulating pump 10, internal circulation can be realized, so that sludge can be in a fluidized state, and anaerobic treatment can be better promoted.
In one embodiment, a packing 812 is further disposed in the contact oxidation treatment unit 8, and the packing 812 is located in the middle of the contact oxidation treatment unit 8 and located at one side of the third enclosed space 86. By arranging the filler 812, an immobilization carrier can be provided for microorganisms, which is beneficial to improving the microorganism treatment effect.
In an embodiment, the second, third, fourth, fifth, sixth and seventh sludge discharge ports 63, 610, 73, 710, 83 and 810 are respectively in communication with the water inlet pipe 59 through the first sludge pump 16 and a fourth flow meter 15 is provided between the first sludge pump 16 and the water inlet pipe 59.
In one embodiment, the first water inlet 51 at the bottom of the upflow anaerobic granular sludge treatment unit 5 is connected to a plurality of water distribution branch pipes (not shown in the figure), each water distribution branch pipe is provided with a separate valve, each water distribution branch pipe corresponds to one water distribution port, and the water distribution area of each water distribution port is calculated according to 1m 2. The water distribution ports face downwards, so that the sludge particles are stirred firstly, and then when the jet flow is blocked and returns upwards, a large amount of stirred sludge particles are driven to float upwards, sewage can flow upwards or float in the sewage at a constant speed, fermentation and treatment conditions are improved, the smaller the pipe diameter of the spray nozzle, the higher the flow speed, the more obvious the stirring effect on the granular sludge is, but the smaller the pipe diameter is, and the larger the system resistance is.
In one embodiment, the first chute assembly 55 has a chute aperture of 100 to 120mm.
In one embodiment, microporous aerators (disk or corundum) can be adopted in the aeration process, the service area is 0.25-0.55m 2/aerator, and the number of the aerators is set according to the unit area of the activated sludge.
In one embodiment, the inner walls of the first hollow flap 65, the second hollow flap 75, and the third hollow flap 85 are higher than the outer walls. The utility model also provides a cultivation wastewater treatment method based on the cultivation wastewater standard discharge treatment device, which comprises the following steps:
(a) Discharging the culture manure into a mud storage tank 1, pumping the culture manure into a solid-liquid separator 2 for solid-liquid separation, adding polyacrylamide into the solid-liquid separator 2 through a second dosing tank 9, and separating culture wastewater into a raw material pond 3 for storage, wherein the addition amount of the polyacrylamide is 0.5% (based on the solid content of the manure);
(b) Pumping the culture wastewater in the raw material pond 3 into a regulating pond 4, inoculating anaerobic granular sludge at the bottom of an up-flow anaerobic granular sludge treatment unit 5, and then pumping the culture wastewater into the up-flow anaerobic granular sludge treatment unit 5 for anaerobic treatment after heating if the temperature of the culture wastewater in the regulating pond 4 is lower than 10 ℃ and heating is not needed if the temperature of the culture wastewater is higher than 10 ℃, wherein a circulating pump is intermittently started for circulating the culture wastewater so as to keep the anaerobic granular sludge in a fluid state, wherein the inoculation amount of the anaerobic granular sludge is half of the volume below a three-phase separator in the up-flow anaerobic granular sludge treatment unit, and the hydraulic retention time is 2d;
(c) Inoculating first activated sludge at the bottom of an activated sludge treatment unit 6, discharging effluent in an upflow anaerobic granular sludge treatment unit 5 into the activated sludge treatment unit 6 through a water pipe communicated with a first water discharge groove 58 for treatment, and simultaneously aerating through a first group of aeration openings 61, wherein the first activated sludge is activated sludge of a municipal sewage treatment plant, the inoculation amount of the first activated sludge is half of the effective volume inside the activated sludge treatment unit, the hydraulic retention time is 2d, and the aeration amount of wastewater per cubic unit is 100m 3;
(d) Inoculating nitrified sludge and anaerobic ammonia oxidation granular sludge at the bottom of a short-cut nitrifying-anaerobic ammonia oxidation treatment unit 7, discharging effluent in an activated sludge treatment unit 6 into the short-cut nitrifying-anaerobic ammonia oxidation treatment unit 7 through a water pipe communicated with a second water discharge groove 611 for treatment, adding calcium chloride into the short-cut nitrifying-anaerobic ammonia oxidation treatment unit 7 through a first dosing tank 10 and aerating the short-cut nitrifying-anaerobic ammonia oxidation treatment unit through a second group of aeration ports, wherein the nitrified sludge inoculation amount is 0.25 times of the effective volume of a biological reaction zone of the short-cut nitrifying-anaerobic ammonia oxidation treatment unit, the anaerobic ammonia oxidation granular sludge inoculation amount=Q (C Feeding in －C out of )/1000S, wherein Q is the treatment water amount, m3/d, C Feeding in is the inlet ammonia nitrogen concentration, C out of is the outlet water concentration required by the effluent, mg/L, S is the activity of the inoculated anaerobic ammonia nitrogen oxidation granular sludge, N/VSS is 1d, the aeration amount of each cubic waste water is 3, the calcium chloride is added to the calcium ion concentration is 80 mg/Kg, and the short-cut nitrifying-anaerobic ammonia oxidation treatment unit does not exceed 0.5mg/L;
(e) The bottom of the contact oxidation treatment unit 8 is inoculated with second activated sludge, then effluent water in the short-cut nitrification-anaerobic ammonia oxidation treatment unit 7 is discharged into the contact oxidation treatment unit 8 for treatment through a water pipe communicated with a third water discharge groove 711, aeration is carried out through a third group of aeration openings, and finally the treated water is discharged through a fourth water discharge groove 811, wherein the inoculation amount of the second activated sludge is 0.5 times of the effective volume of a reaction zone of the contact oxidation unit, the hydraulic retention time is 1d, and the aeration amount of wastewater per cubic unit is 10m 3.
Adopting the cultivation wastewater treatment method of the cultivation wastewater standard discharge treatment device to treat the pig cultivation wastewater;
the indices of the pig breeding sewage before treatment and the indices of the effluent after treatment by each unit are shown in table 1:
TABLE 1
Therefore, COD, SS, TN and NH 4 + -N in the culture wastewater can be efficiently removed by the treatment method.
It should be noted that the above embodiments are only used to illustrate the technical solution of the present utility model, but not to limit the technical solution of the present utility model, and although the detailed description of the present utility model is given with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present utility model, and all the modifications or substitutions are included in the scope of the claims and the specification of the present utility model.
Claims (5)
1. The device is characterized by comprising a mud storage tank, a solid-liquid separator, a raw liquid tank, an adjusting tank and an integrated cultivation wastewater treatment device, wherein the integrated cultivation wastewater treatment device comprises an up-flow anaerobic granular sludge treatment unit, an activated sludge treatment unit, a short-cut nitrification-anaerobic ammonia oxidation treatment unit and a contact oxidation treatment unit;
the bottom of the mud storage tank is provided with a first submersible sewage pump, and an outlet of the first submersible sewage pump is connected with the solid-liquid separator;
the bottom of the raw liquid pool is provided with a second submersible sewage pump, an outlet of the second submersible sewage pump is connected with the regulating pool, the regulating pool is communicated with the upflow anaerobic granular sludge treatment unit, and a baffle plate and a heating rod are arranged inside the regulating pool;
The upflow anaerobic granular sludge treatment unit is provided with a first water inlet, a first emptying port and a first sludge discharge port at the bottom, a three-phase separator and a first inclined tube component above the three-phase separator are arranged in the middle, an exhaust hole, a water collecting tank and a first drainage tank communicated with the water collecting tank are arranged at the upper part, the top of the upflow anaerobic granular sludge treatment unit is provided with an exhaust pipe, the first water inlet is communicated with the regulating tank through a water inlet pipe, the first sludge discharge port is communicated with the sludge storage tank, and the first drainage tank is communicated with the activated sludge treatment unit through a water pipe;
the bottom of the activated sludge treatment unit is provided with a first group of aeration openings, a second emptying opening and a second sludge discharge opening, one side of the middle part is provided with a first inclined plate, the upper part is provided with a first hollow folded plate which extends downwards, the first hollow folded plate, the first inclined plate and the inner wall of the activated sludge treatment unit form a first closed space, the outer wall of the upper part of the first hollow folded plate is provided with a second water inlet, the lower part is open and a first opening is arranged between the lower part and the first inclined plate;
The bottom of the short-cut nitrification-anaerobic ammonia oxidation treatment unit is provided with a second group of aeration openings, a third emptying opening and a fourth sludge discharge opening, one side of the middle part is provided with a second inclined plate, the upper part is provided with a second hollow folded plate which extends downwards, the second hollow folded plate, the second inclined plate and the inner wall of the short-cut nitrification-anaerobic ammonia oxidation treatment unit form a second closed space, the outer wall of the upper part of the second hollow folded plate is provided with a third water inlet, the lower part is open and a second opening is arranged between the lower part and the second inclined plate, the side wall of the bottom of the second closed space is provided with a fifth sludge discharge opening, the upper part is provided with a third water discharge groove, and the third water discharge groove is communicated with the contact oxidation treatment unit through a water pipe;
The bottom of the contact oxidation treatment unit is provided with a third group of aeration openings, a fourth emptying opening and a sixth sludge discharge opening, one side of the middle part is provided with a third inclined plate, the upper part is provided with a third hollow folded plate extending downwards, the third hollow folded plate, the third inclined plate and the inner wall of the contact oxidation treatment unit form a third closed space, the outer wall of the upper part of the third hollow folded plate is provided with a fourth water inlet, the lower part is open and a third opening is arranged between the lower part and the third inclined plate, the side wall of the bottom of the third closed space is provided with a seventh sludge discharge opening, and the upper part is provided with a fourth water discharge groove.
2. The device for treating the standard discharge of the aquaculture wastewater according to claim 1, wherein the integrated aquaculture wastewater treatment device further comprises a circulating pump, an inlet of the circulating pump is communicated with an outer wall above a three-phase separator in the upflow anaerobic granular sludge treatment unit through a water pipe, and an outlet of the circulating pump is communicated with the water inlet pipe.
3. The device for treating the standard-reaching discharge of the aquaculture wastewater according to claim 1, wherein a filler is further arranged in the contact oxidation treatment unit, and the filler is positioned in the middle of the contact oxidation treatment unit and at one side of the third enclosed space.
4. The device for treating the standard discharge of the aquaculture wastewater according to claim 1, wherein the second sludge discharge port, the third sludge discharge port, the fourth sludge discharge port, the fifth sludge discharge port, the sixth sludge discharge port and the seventh sludge discharge port are respectively communicated with the water inlet pipe through a first sludge discharge pump.
5. The standard discharge treatment device for the aquaculture wastewater according to claim 1, further comprising a first dosing tank and a second dosing tank, wherein the first dosing tank is connected with the short-cut nitrification-anaerobic ammonia oxidation treatment unit, and the second dosing tank is connected with the solid-liquid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420823670.2U CN222389681U (en) | 2024-04-19 | 2024-04-19 | Cultivation wastewater up-to-standard discharge treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420823670.2U CN222389681U (en) | 2024-04-19 | 2024-04-19 | Cultivation wastewater up-to-standard discharge treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222389681U true CN222389681U (en) | 2025-01-24 |
Family
ID=94289925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420823670.2U Active CN222389681U (en) | 2024-04-19 | 2024-04-19 | Cultivation wastewater up-to-standard discharge treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222389681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118324338A (en) * | 2024-04-19 | 2024-07-12 | 西北农林科技大学 | Aquaculture wastewater discharge treatment device and treatment method |
-
2024
- 2024-04-19 CN CN202420823670.2U patent/CN222389681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118324338A (en) * | 2024-04-19 | 2024-07-12 | 西北农林科技大学 | Aquaculture wastewater discharge treatment device and treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101475284B (en) | Domestic sewage treatment process and apparatus | |
| CN103435232B (en) | AABR (Anaerobic Baffled Reactor)-compound type MBR (Membrane Biological Reactor) integrated device and method for treating organic wastewater | |
| CN104528932A (en) | Advanced wastewater treatment denitrification biological filter device system and treatment process | |
| CN207243560U (en) | Self-circulating anaerobic reactor | |
| CN107265802A (en) | The treatment for cow manure system and processing method of a kind of dairy cow farm | |
| CN101698556A (en) | Treatment method and treatment device of wastewater from middle stage of wheat straw pulp paper-making | |
| CN101817615A (en) | Anaerobic-sequencing batch biofilm reactor-artificial wetland method for treating piggery wastewater | |
| CN216687842U (en) | Integrated device for deep total nitrogen removal treatment of high ammonia nitrogen sewage | |
| CN115028264A (en) | Preposed anoxic sludge film composite biological nitrogen and phosphorus removal reactor and sewage treatment method | |
| CN201395547Y (en) | A sewage treatment device | |
| CN114477450B (en) | Enhanced domestic sewage denitrification and dephosphorization treatment device and treatment method | |
| CN222389681U (en) | Cultivation wastewater up-to-standard discharge treatment device | |
| CN110697897A (en) | Sewage treatment device and treatment process based on suspended filler biofilm technology | |
| CN117566939A (en) | A fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system | |
| CN102659284B (en) | Regenerated papermaking wastewater treatment system and process | |
| CN111592104A (en) | A short-range high-efficiency biological treatment device and treatment method for food waste digestive juice | |
| CN105198080A (en) | Anaerobic particle sludge rapid culture method suitable for oil refining and chemical engineering wastewater treatment | |
| CN202046974U (en) | Highly efficient treatment system for denitrification and dephosphorization of urban sewage | |
| CN118145831B (en) | Low-carbon co-processing system and method for high-efficiency denitrification and dephosphorization of livestock and poultry breeding wastewater | |
| CN222250276U (en) | Reactor for degrading organic matters in sewage treatment | |
| CN205347142U (en) | Aquaculture wastewater treatment system | |
| CN201971710U (en) | Municipal wastewater treatment biochemical reaction tank | |
| CN105174449A (en) | Up-flow anaerobic sludge blanket reactor of improved structure | |
| CN212712932U (en) | Short-range efficient biological treatment device for kitchen waste digestive juice | |
| CN112794438B (en) | A multi-stage anoxic-aerobic process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |