CN214270515U - Contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system - Google Patents
Contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system Download PDFInfo
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- CN214270515U CN214270515U CN202120097802.4U CN202120097802U CN214270515U CN 214270515 U CN214270515 U CN 214270515U CN 202120097802 U CN202120097802 U CN 202120097802U CN 214270515 U CN214270515 U CN 214270515U
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Abstract
The utility model discloses an contain ammonia nitrogen, phosphorus, fluorine type effluent disposal system, including the preliminary reaction pond that connects gradually through water pipe, one-level reaction tank, second grade reaction tank, deamination tower, quenching and tempering pond and filter, still be equipped with middle pond between second grade reaction tank and the deamination tower, second grade reaction tank and deamination tower lead to pipe respectively and middle pond intercommunication, pending waste water passes through waste water conveyer pipe pump and goes into the water inlet in preliminary reaction pond, the play mud mouth in second grade reaction tank still is connected with the concentrated pond of calcium mud through the mud pipe, the play mud mouth in concentrated pond of calcium mud and the mud mouth of advancing in preliminary reaction pond pass through the mud pipe switch-on. Adopt the utility model discloses an contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system can loop through pre-reaction tank, one-level reaction tank, second grade reaction tank, deamination tower, quenching and tempering pond and filter with waste water, reacts step by step and reduces the pollution factor in the waste water, fully recycles the output of each step in the time to its solid-liquid separation to further handle and utilize its solid that separates.
Description
Technical Field
The utility model relates to a sewage treatment, concretely relates to contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system.
Background
The treatment object of the wastewater treatment process is ammonia nitrogen, phosphorus and fluorine acid wastewater, a wastewater collection reservoir is configured below the device area according to the design specification, the wastewater is acidic, the pH value is 2.5-3.0, and the pollution factors mainly comprise: if the ammonia nitrogen, the phosphorus and the fluorine are directly discharged, huge damage is inevitably brought to local ecological environment, so that the realization of standard discharge is particularly important after the sewage is subjected to harmless treatment in advance.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an contain ammonia nitrogen, phosphorus, fluorine type effluent disposal system can effectively carry out innocent treatment to waste water.
The technical scheme is as follows:
the utility model provides a contain ammonia nitrogen, phosphorus, fluorine type effluent disposal system, its key lies in, includes the preliminary reaction pond, one-level reaction tank, second grade reaction tank, deamination tower, quenching and tempering pond and the filter that connect gradually through the main water pipe, its characterized in that:
an intermediate water tank is also arranged on a main water pipe between the secondary reaction tank and the deamination tower, and the secondary reaction tank and the deamination tower are respectively communicated with the intermediate water tank through water pipes;
wastewater to be treated enters the water inlet of the pre-reaction tank through a wastewater conveying pipe, a sludge outlet of the secondary reaction tank is also connected with a calcium sludge concentration tank through a sludge pipe, a sludge outlet of the calcium sludge concentration tank is communicated with a sludge inlet of the pre-reaction tank through a sludge pipe, and a water outlet of the calcium sludge concentration tank is communicated with a water inlet of the intermediate water tank through a water pipe;
the sludge outlet of the pre-reaction tank is also connected with a pre-reaction concentration tank through a sludge pipe, the sludge inlet of the pre-reaction concentration tank is communicated with the sludge outlet of the pre-reaction tank, and the water outlet of the pre-reaction concentration tank is also communicated with the water inlet of the primary reaction tank through a water pipe;
the mud outlet of the primary reaction tank is connected with a salt mud concentration tank through a mud pipe, the mud inlet of the salt mud concentration tank is communicated with the mud outlet of the primary reaction tank, and the water outlet of the salt mud concentration tank is communicated with the water inlet of the secondary reaction tank through a water pipe.
The effect of adopting above scheme: the utility model discloses take place chemical reaction in the preliminary reaction pond, can loop through preliminary reaction pond, one-level reaction pond, second grade reaction pond, deamination tower, quenching and tempering pond and filter with waste water, react step by step and reduce the pollution factor in the waste water, fully recycle the output of each step in the time to its solid-liquid separation to solid further processing and utilization to its separation out.
And the discharge ports of the liquid sodium hydroxide filling pipe and the magnesium oxide filling pipe are respectively communicated with the feed port of the first-stage reaction tank.
And a lime powder filling pipe is also arranged on the secondary reaction tank, and a discharge port of the lime powder filling pipe extends into the secondary reaction tank.
And a discharge hole of the concentrated sulfuric acid filling pipe is communicated with a feed hole of the conditioning tank.
The sludge treatment system also comprises a calcium sludge stirring tank and a horizontal spiral centrifuge, wherein a sludge outlet of the calcium sludge stirring tank is communicated with a sludge inlet of the horizontal spiral centrifuge through a sludge pipe, and the slurry of the conditioning tank, the slurry of the calcium sludge concentration tank and the slurry of the pre-reaction concentration tank are communicated with the calcium sludge stirring tank through sludge pipes;
and the water outlet of the horizontal spiral centrifuge is communicated with the water inlet of the middle water pool through a water pipe.
The salt mud concentration tank is communicated with a mud inlet of the salt mud stirring tank through a mud pipe, and a water outlet of the pressure bag filter is communicated with a water inlet of the secondary reaction tank.
The thick mud drying tower is characterized by further comprising a thick mud stirring tank, a hot blast stove and a boiling drying tower, wherein the thick mud stirring tank is connected with the boiling drying tower through a pipeline, an air outlet of the hot blast stove is communicated with the boiling drying tower through an air pipe, and a mud inlet of the thick mud stirring tank is communicated with a mud outlet of the pressure bag filter through a mud pipe.
The hot blast stove is also provided with a natural gas inlet pipe and an air inlet pipe, and the natural gas inlet pipe and the air inlet pipe are communicated with the hot blast stove.
And the boiling drying tower is also provided with an air outlet pipe, and the air outlet pipe extends into the primary reaction tank.
The discharge port of the horizontal spiral centrifuge is also provided with a calcium mud hopper, and the technical scheme has the advantages that the main components of the waste gas of the boiling drying tower are air, water vapor and magnesium ammonium phosphate dust, and the temperature of the discharged gas is 70-90 ℃. The main purpose of introducing into the first-stage reaction tank is to wash dust in the waste gas.
And a calcium mud hopper is also arranged at the discharge hole of the horizontal spiral centrifuge.
A flocculant filling pipe is arranged on each of the pre-reaction concentration tank, the salt mud concentration tank and the calcium mud concentration tank, and is communicated with the corresponding pre-reaction concentration tank, the corresponding salt mud concentration tank and the corresponding calcium mud concentration tank respectively;
a second flocculating agent filling pipe is further arranged on a mud pipe between the calcium mud stirring tank and the horizontal spiral centrifugal machine, and a discharge port of the flocculating agent filling pipe is communicated with the mud pipe between the calcium mud stirring tank and the horizontal spiral centrifugal machine
Has the advantages that: the wastewater can sequentially pass through the pre-reaction tank, the primary reaction tank, the secondary reaction tank, the deamination tower, the conditioning tank and the filter, so that the wastewater can be reacted step by step, pollution factors in the wastewater can be reduced, the products in each step can be fully recycled while the wastewater is subjected to solid-liquid separation, and the separated solids can be further treated and utilized.
Drawings
FIG. 1 is a schematic diagram of a PID (piping instrument flow chart) structure of the present invention;
FIG. 2 is a schematic diagram showing the connection relationship of a pre-reaction tank 1, a primary reaction tank 2, a secondary reaction tank 3, a deamination tower 4 and a conditioning tank 5;
fig. 3 is a schematic view showing the connection relationship between the hot blast stove 26 and the boiling drying tower 27.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
As shown in figures 1 to 3, the system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine mainly comprises a main wastewater treatment channel consisting of a pre-reaction tank 1, a primary reaction tank 2, a secondary reaction tank 3, a deamination tower 4, a conditioning tank 5 and a filter 6 which are sequentially connected by water pipes.
An intermediate water tank 14 is also arranged between the secondary reaction tank 3 and the deamination tower 4, and the secondary reaction tank 3 and the deamination tower 4 are respectively communicated with the intermediate water tank 14 through water pipes;
the wastewater to be treated is pumped into the water inlet of the pre-reaction tank 1 through a wastewater conveying pipe 24, and after entering the deamination tower 4 through the process, the ammonia nitrogen in the wastewater is reduced to the qualified discharge standard or below the qualified discharge standard specified by the state, the ammonia nitrogen content is lower than 15mg/l, the sludge outlet of the secondary reaction tank 3 is also connected with a lime sludge concentration tank 13 through a sludge pipe, the sludge outlet of the lime sludge concentration tank 13 is communicated with the sludge inlet of the pre-reaction tank 1 through a sludge pipe, the sediment lime sludge in the lime sludge concentration tank 13 is led into the pre-reaction tank 1 for reaction, the content of fluorine, phosphorus and ammonia nitrogen in the pre-reaction tank 1 is reduced, the pH value is increased to 3-6.5, a calcium mud pump 18 is also arranged on a mud pipe between the calcium mud concentration tank 13 and the pre-reaction tank 1, the water outlet of the calcium sludge concentration tank 13 is communicated with the water inlet of the intermediate water tank 14 through a water pipe;
the sludge outlet of the pre-reaction tank 1 is also connected with a pre-reaction concentration tank 11 through a sludge pipe, the sludge inlet of the pre-reaction concentration tank 11 is communicated with the sludge outlet of the pre-reaction tank 1, and the water outlet of the pre-reaction concentration tank 11 is also communicated with the water inlet of the primary reaction tank 2 through a water pipe;
the mud outlet of the primary reaction tank 2 is also connected with a salt mud concentration tank 12 through a mud pipe, the mud inlet of the salt mud concentration tank 12 is communicated with the mud outlet of the primary reaction tank 2, and the water outlet of the salt mud concentration tank 12 is also communicated with the water inlet of the secondary reaction tank 3 through a water pipe.
Wherein:
the primary reaction tank 2 is also provided with a liquid sodium hydroxide filling pipe 23 and a magnesium oxide filling pipe 22, discharge ports of the liquid sodium hydroxide filling pipe 23 and the magnesium oxide filling pipe 22 are respectively communicated with a feed port of the primary reaction tank 2, and are stirred and reacted with liquid sodium hydroxide and magnesium oxide in the primary reaction tank wastewater to further reduce the content of phosphorus and ammonia nitrogen, wherein the content of ammonia nitrogen is less than 25mg/L, and the pH value is further increased to be within the range of 6-10.
And a lime powder filling pipe 21 is further arranged on the secondary reaction tank 3, a discharge port of the lime powder filling pipe 21 extends into the secondary reaction tank 3 and is stirred with lime powder to accelerate reaction, two pollution factors of phosphorus and fluorine in the wastewater are reduced to be below the national specified discharge standard, the fluorine content is lower than 10mg/l, the phosphorus content is lower than 0.5mg/l, and meanwhile, the pH value is continuously increased to be within the range of 10-14.
Still be equipped with concentrated sulfuric acid filling pipe 20 on the quenching and tempering pond 5, the discharge gate of concentrated sulfuric acid filling pipe 20 with the feed inlet switch-on of quenching and tempering pond 5, under the effect of stirring, take place neutralization reaction fast, regulate and control pH value to 6 ~ 9 scope, filter 6 is the active carbon filter, under the adsorption of active carbon, lets out water quality COD value and reaches below national regulation's emission standard or standard.
The device also comprises a sludge stirring tank 7 and a pressure bag filter 8, wherein the sludge stirring tank 7 is communicated with the pressure bag filter 8 through a sludge pipe, and a water outlet of the pressure bag filter 8 is communicated with a water inlet of the secondary reaction tank 3;
the mud outlet of the salt mud concentration tank 12 is connected with a salt mud pump 17 through a mud pipe, the mud outlet of the salt mud pump 17 is connected with the mud inlet of the thin mud stirring tank 7, the discharge port of the thin mud stirring tank 7 is connected with a thin mud pump through a mud pipe, and the discharge port of the thin mud pump is respectively connected with the pressure bag filter 8 through a mud pipe.
Still include calcium mud stirred tank 15 and horizontal screw centrifuge 9, still be connected with the preliminary reaction thick liquid pump 16 on the preliminary reaction concentration pond 11, still be connected with pH regulation sedimentation tank sludge pump 19 on the quenching and tempering pond 5, preliminary reaction thick liquid pump 16 pH regulation sedimentation tank sludge pump 19 with the mud outlet of calcium mud pump 18 all through the mud pipe with calcium mud stirred tank 15 switch-on forms calcium mud main passage, the mud outlet of calcium mud stirred tank 15 pass through the mud pipe with horizontal screw centrifuge 9's mud inlet switch-on, calcium mud stirred tank 15 with be equipped with calcium mud delivery pump on the mud pipe between the horizontal screw centrifuge 9, horizontal screw centrifuge 9's delivery port lead to pipe with the water inlet switch-on of middle pond 14.
Still include thick mud stirred tank 25, hot-blast furnace 26 and fluidized drying tower 27, thick mud stirred tank 25 with fluidized drying tower 27 passes through the pipe connection, thick mud stirred tank 25 with still be equipped with No. two thick mud pumps on the pipeline between fluidized drying tower 27, thick mud stirred tank 25 advance mud mouth with the mud mouth of pressure bag filter 8 passes through the mud pipe switch-on.
The salt mud concentration tank 12, the slurry stirring tank 7, the pressure bag filter 8, the thick mud stirring tank 25 and the boiling drying tower 27 form a flower fertilizer main channel.
The hot blast stove 26 is further provided with a natural gas inlet pipe 28 and an air inlet pipe, the natural gas inlet pipe 28 and the air inlet pipe are communicated with the hot blast stove 26, and the air outlet of the hot blast stove 26 is communicated with the fluidized drying tower 27 through an air pipe.
The boiling drying tower 27 is also provided with an air outlet pipe, and the air outlet pipe extends into the primary reaction tank 2.
The by-product of the boiling drying tower 27 is magnesium ammonium phosphate, is a good high-phosphorus slow-release fertilizer, and has the advantages of long fertilizer effect, good application, easy dissolution in water after application, easy release of effective components, quick crop absorption and convenient use.
And a calcium mud hopper 10 is also arranged at the discharge hole of the horizontal spiral centrifugal machine 9.
S1 of fig. 2 and 3 represents the same pipeline, s2 of fig. 2 and 3 represents the same pipeline, s3 of fig. 2 and 3 represents the same pipeline, s4 of fig. 2 and 3 represents the same pipeline, s5 of fig. 2 and 3 represents the same pipeline, s6 of fig. 2 and 3 represents the same pipeline, s7 of fig. 2 and 3 represents the same pipeline, s8 of fig. 2 and 3 represents the same pipeline;
flocculating agents are added to the pre-reaction concentration tank 11, the salt mud concentration tank 12, the calcium mud concentration tank 13 and the horizontal spiral centrifugal machine 9 to accelerate the separation speed of the mixture and enable the separated mother liquor to be clearer.
The pre-reaction tank 1, the first-stage reaction tank 2 and the second-stage reaction tank 3 are divided into three parts, the first two parts are reaction zones to ensure more sufficient chemistry, and the third part is a settling zone.
A flocculant filling pipe is respectively arranged on the pre-reaction concentration tank 11, the salt mud concentration tank 12 and the calcium mud concentration tank 13, and is respectively communicated with the corresponding pre-reaction concentration tank 11, the corresponding salt mud concentration tank 12 and the corresponding calcium mud concentration tank 13;
a second flocculating agent filling pipe is further arranged on a mud pipe between the calcium mud stirring tank 15 and the horizontal spiral centrifugal machine 9, and a discharge port of the flocculating agent filling pipe is communicated with the mud pipe between the calcium mud stirring tank 15 and the horizontal spiral centrifugal machine 9.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (10)
1. The utility model provides a contain ammonia nitrogen, phosphorus, fluorine type effluent disposal system, includes pre-reaction tank (1), one-level reaction tank (2), second grade reaction tank (3), deamination tower (4), quenching and tempering pond (5) and filter (6) that connect gradually through the main water pipe, its characterized in that:
an intermediate water tank (14) is further arranged on a main water pipe between the secondary reaction tank (3) and the deamination tower (4), and the secondary reaction tank (3) and the deamination tower (4) are respectively communicated with the intermediate water tank (14) through water pipes;
wastewater to be treated enters a water inlet of the pre-reaction tank (1) through a wastewater conveying pipe (24), a sludge outlet of the secondary reaction tank (3) is also connected with a calcium sludge concentration tank (13) through a sludge pipe, a sludge outlet of the calcium sludge concentration tank (13) is communicated with a sludge inlet of the pre-reaction tank (1) through a sludge pipe, and a water outlet of the calcium sludge concentration tank (13) is communicated with a water inlet of the intermediate water tank (14) through a water pipe;
the sludge outlet of the pre-reaction tank (1) is also connected with a pre-reaction concentration tank (11) through a sludge pipe, the sludge inlet of the pre-reaction concentration tank (11) is communicated with the sludge outlet of the pre-reaction tank (1), and the water outlet of the pre-reaction concentration tank (11) is also communicated with the water inlet of the primary reaction tank (2) through a water pipe;
the mud outlet of the primary reaction tank (2) is connected with a salt mud concentration tank (12) through a mud pipe, the mud inlet of the salt mud concentration tank (12) is communicated with the mud outlet of the primary reaction tank (2), and the water outlet of the salt mud concentration tank (12) is communicated with the water inlet of the secondary reaction tank (3) through a water pipe.
2. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 1, characterized in that: the device is characterized in that a liquid sodium hydroxide filling pipe (23) and a magnesium oxide filling pipe (22) are further arranged on the first-stage reaction tank (2), and discharge ports of the liquid sodium hydroxide filling pipe (23) and the magnesium oxide filling pipe (22) are respectively communicated with a feed port of the first-stage reaction tank (2).
3. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 2, wherein: and a lime powder filling pipe (21) is also arranged on the secondary reaction tank (3), and a discharge hole of the lime powder filling pipe (21) extends into the secondary reaction tank (3).
4. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 3, characterized in that: and a concentrated sulfuric acid filling pipe (20) is also arranged on the hardening and tempering tank (5), and a discharge hole of the concentrated sulfuric acid filling pipe (20) is communicated with a feed inlet of the hardening and tempering tank (5).
5. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 4, characterized in that: the device is characterized by also comprising a calcium mud stirring tank (15) and a horizontal spiral centrifugal machine (9), wherein a mud outlet of the calcium mud stirring tank (15) is communicated with a mud inlet of the horizontal spiral centrifugal machine (9) through a mud pipe, and the mud of the conditioning tank (5), the mud of the calcium mud concentration tank (13) and the mud of the pre-reaction concentration tank (11) are communicated with the calcium mud stirring tank (15) through mud pipes;
the water outlet of the horizontal spiral centrifuge (9) is communicated with the water inlet of the middle water pool (14) through a water pipe.
6. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 5, wherein: the device is characterized by further comprising a sludge stirring tank (7) and a pressure bag filter (8), wherein the sludge stirring tank (7) is communicated with the pressure bag filter (8) through a sludge pipe, the slurry of the salt sludge concentration tank (12) is communicated with a sludge inlet of the sludge stirring tank (7) through a sludge pipe, and a water outlet of the pressure bag filter (8) is communicated with a water inlet of the secondary reaction tank (3).
7. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 6, characterized in that: the device is characterized by further comprising a thick mud stirring tank (25), a hot blast stove (26) and a boiling drying tower (27), wherein the thick mud stirring tank (25) is connected with the boiling drying tower (27) through a pipeline, an air outlet of the hot blast stove (26) is communicated with the boiling drying tower (27) through an air pipe, and a mud inlet of the thick mud stirring tank (25) is communicated with a mud outlet of the pressure bag filter (8) through a mud pipe;
the hot blast stove (26) is further provided with a natural gas inlet pipe (28) and an air inlet pipe, and the natural gas inlet pipe (28) and the air inlet pipe are communicated with the hot blast stove (26).
8. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 7, wherein: the boiling drying tower (27) is also provided with an air outlet pipe, and the air outlet pipe extends into the first-stage reaction tank (2).
9. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 8, wherein: and a calcium mud hopper (10) is also arranged at the discharge hole of the horizontal spiral centrifugal machine (9).
10. The system for treating wastewater containing ammonia nitrogen, phosphorus and fluorine according to claim 9, characterized in that: a flocculant filling pipe is arranged on each of the pre-reaction concentration tank (11), the salt mud concentration tank (12) and the calcium mud concentration tank (13), and is respectively communicated with the corresponding pre-reaction concentration tank (11), the corresponding salt mud concentration tank (12) and the corresponding calcium mud concentration tank (13);
and a second flocculant filling pipe is further arranged on a mud pipe between the calcium mud stirring tank (15) and the horizontal spiral centrifugal machine (9), and a discharge port of the flocculant filling pipe is communicated with the mud pipe between the calcium mud stirring tank (15) and the horizontal spiral centrifugal machine (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120097802.4U CN214270515U (en) | 2021-01-14 | 2021-01-14 | Contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system |
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| CN202120097802.4U CN214270515U (en) | 2021-01-14 | 2021-01-14 | Contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624435A (en) * | 2021-01-14 | 2021-04-09 | 中化重庆涪陵化工有限公司 | Contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624435A (en) * | 2021-01-14 | 2021-04-09 | 中化重庆涪陵化工有限公司 | Contain ammonia nitrogen, phosphorus, fluorine class effluent disposal system |
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