CN210764849U - Mine water ammonia nitrogen removal equipment - Google Patents
Mine water ammonia nitrogen removal equipment Download PDFInfo
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- CN210764849U CN210764849U CN201921052965.XU CN201921052965U CN210764849U CN 210764849 U CN210764849 U CN 210764849U CN 201921052965 U CN201921052965 U CN 201921052965U CN 210764849 U CN210764849 U CN 210764849U
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Abstract
A mine water ammonia nitrogen removing device belongs to the technical field of sewage treatment equipment. The utility model discloses mainly overcome traditional breakpoint chlorination method and get rid of mine aquatic ammonia nitrogen technology and have disadvantages such as the working costs height, play water chlorine residue index control difficulty. The technical scheme of the utility model is that: a mine water ammonia nitrogen removal device comprises an anti-corrosion box body, a water inlet pipe, a water outlet pipe, a backwashing water inlet pipe, a backwashing water outlet pipe, a backwashing air inlet pipe, a water outlet pipe, a backwashing fan, an aeration fan and a backwashing water pump; the bottom of the inner cavity of the anti-corrosion box body is a cavity, a plurality of long-handle filter heads are arranged above the cavity, a bearing layer, a zeolite filter material layer and an active carbon filter material layer are sequentially arranged above the long-handle filter heads in the inner cavity of the anti-corrosion box body from bottom to top, and a stainless steel blocking net is arranged above the active carbon filter material layer. The utility model discloses compare with breakpoint chlorination method ammonia nitrogen removal technique, have that the operation is reliable, the equipment operation front and back phase removes that the ammonia nitrogen effect is stable, the working costs is low, degree of automation is high, the energy consumption is low grade advantage.
Description
Technical Field
The utility model discloses a mine water ammonia nitrogen removal equipment belongs to sewage treatment device technical field.
Background
Mine water pollutants discharged in coal mine production contain certain ammonia nitrogen indexes, wherein the ammonia nitrogen indexes are generally 1-5mg/L, but with the increasing strictness of environmental protection policies, water quality indexes after mine water treatment are required to reach class III water standards in surface water environmental quality standards GB3838-2002 by some provinces and cities, so that the ammonia nitrogen pollutants in mine water need to be treated to be less than 1mg/L (ammonia nitrogen is less than or equal to 1 mg/L). At present, the mine water treatment is usually carried out by adopting a 'coagulation + precipitation + filtration' process, the process can remove COD (chemical oxygen demand), SS (suspended solids) and part of petroleum indexes in the mine water, but the process has no removing effect on soluble ammonia nitrogen, so that the ammonia nitrogen index in the mine water outlet water is more than 1 mg/L. The method is a breakpoint chlorination method aiming at a common method in the engineering for removing ammonia nitrogen in mine water, has the advantages of low investment, stable treatment effect and the like, but has the defects of high operating cost and difficult control of residual chlorine index of effluent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a novel mine water ammonia nitrogen removal equipment, solve the high, the play water chlorine residue index control difficulty class of working costs that current mine water ammonia nitrogen gets rid of technology existence technical problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a mine water ammonia nitrogen removal device comprises an anti-corrosion box body, a water inlet pipe, a water outlet pipe, a backwashing water inlet pipe, a backwashing water drain pipe, a backwashing air inlet pipe, an aeration air inlet pipe, a water drain pipe, a backwashing fan, an aeration fan and a backwashing water pump; control valves are arranged on the water inlet pipe, the water outlet pipe, the backwashing water inlet pipe, the backwashing water outlet pipe, the aeration air inlet pipe, the backwashing air inlet pipe and the water outlet pipe;
the bottom of the inner cavity of the anti-corrosion box body is a cavity, a plurality of long-handle filter heads are arranged above the cavity, a bearing layer, a zeolite filter material layer and an active carbon filter material layer are sequentially arranged above the long-handle filter heads in the inner cavity of the anti-corrosion box body from bottom to top, and a stainless steel blocking net is arranged above the active carbon filter material layer; a single-hole membrane aerator is arranged in the supporting layer and is communicated with an aeration fan through an aeration air inlet pipe;
a backwashing drainage channel is arranged on one side of the upper part of the anti-corrosion box body, a filtered water outlet channel is arranged on the outer side of the backwashing drainage channel, the upper part of the backwashing drainage channel and the upper part of the filtered water outlet channel are communicated with the upper part of the inner cavity of the anti-corrosion box body, a backwashing drainage weir is arranged between the upper part of the backwashing drainage channel and the inner cavity of the anti-corrosion box body, a filtered water outlet weir is arranged between the backwashing drainage channel and the filtered water outlet channel, and the height of the filtered water outlet weir is higher than that; a backwashing water outlet is formed in the bottom of the backwashing water outlet channel and is connected with a backwashing water outlet pipe, a water outlet hole is formed in the bottom of the filtering water outlet channel and is connected with a water outlet pipe;
two normally closed maintenance manholes are arranged on the side wall of the bottom of the inner cavity of the anti-corrosion box body, a water inlet hole, a backwashing air inlet hole and an aeration air inlet hole are arranged at the bottom of the side wall of one side of the anti-corrosion box body, and a backwashing water inlet hole and a water outlet hole are arranged at the bottom of the side wall of the other side of the anti-corrosion box body; the water inlet hole is connected with a water inlet pipe; one end of the backwashing air inlet pipe extends into a cavity at the bottom of the inner cavity of the anti-corrosion box body from the backwashing air inlet hole, and the other end of the backwashing air inlet pipe is connected with a backwashing fan; one end of the aeration air inlet pipe extends into the anti-corrosion box body from the aeration air inlet hole and is connected with the single-hole membrane aerator, and the other end of the aeration air inlet pipe is connected with the aeration fan; one end of the backwashing water inlet pipe extends into a cavity at the bottom of the inner cavity of the anti-corrosion box body from a backwashing water inlet hole, and the other end of the backwashing water inlet pipe is connected with a backwashing water pump; the drain pipe is connected with the drain hole;
and a plurality of air distribution branch pipes are arranged on two sides of the pipe body of the backwashing air inlet pipe extending into the cavity at the bottom of the inner cavity of the anti-corrosion box body, and a plurality of air distribution holes are arranged on the air distribution branch pipes.
Further, the thickness of the bearing layer is 300-400 mm; the thickness of the zeolite filter material layer is 1.5-2.5m, the particle size of the zeolite filter material is 2-6mm, and the indexes of the zeolite filter material are as follows: II grade products (environment-friendly light industrial grade) or NH4+ exchange capacity is more than or equal to 100-140mmol/100g + - (-, the total amount of the zeolite is 46-65%); the active carbon filter material layer is columnar coal active carbon, the thickness of the active carbon filter material layer is 1-1.5m, and the diameter of the columnar coal active carbon is as follows: 4-6mm, length: 4-10mm, iodine adsorption value more than or equal to 900mg/g, specific surface area as follows: 900-1100m2Per g, less than 10% of water, more than 90% of strength and 0.35-0.55g/cm of packing density3。
Further, the filtration speed of the equipment is designed to be 5m/h-6 m/h; designing the empty bed residence time to be 20-30 min; the aeration steam-water ratio is controlled to be 0.5: 1-1.5: 1.
The utility model discloses the setting on well zeolite filter bed and active carbon filter bed merges zeolite filler and active carbon in same reactor to two kinds of treatment process of selective ion adsorption exchange and biodegradation of ammonia nitrogen, carries out micro-aeration in the filtering pond in the operation process, makes zeolite and the large amount of biomembranes of active carbon filter material surface growth that load in the equipment. The characteristics that the zeolite filter material has strong selective ion adsorption and exchange capacity on ammonia nitrogen are fully utilized at the initial operation stage of the equipment, so that the ammonia nitrogen in the mine water can be removed, and the problems that the biological membrane is not successfully cultured at the initial operation stage of the equipment and the ammonia nitrogen index is difficult to remove are solved; after the biological membrane in the equipment is successfully cultured, when water flows through, the characteristics of oxidative decomposition of high-concentration active microorganisms in the biological membrane attached to the filter material and small particle size of the filter material are utilized, so that the biological metabolism, biological flocculation, physical adsorption and interception of the biological membrane and the filler and the graded predation effect of a food chain in the reactor along the water flow direction are fully exerted, and the pollutants are efficiently removed. Compared with the ammonia nitrogen removal technology by the breakpoint chlorination method, the utility model has the advantages of reliable operation, stable ammonia nitrogen removal effect in the front and back phases of the equipment operation, low operation cost, high automation degree, low energy consumption and the like.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the mine water ammonia nitrogen removal device in the embodiment comprises an anti-corrosion box body 1, a water inlet pipe 2, a water outlet pipe 3, a backwashing water inlet pipe 4, a backwashing water outlet pipe 5, a backwashing air inlet pipe 6, an aeration air inlet pipe 17, a water outlet pipe 7, a backwashing fan 8, an aeration fan 9 and a backwashing water pump 10; control valves are arranged on the water inlet pipe 2, the water outlet pipe 3, the backwashing water inlet pipe 4, the backwashing water outlet pipe 5, the aeration air inlet pipe 17, the backwashing air inlet pipe 6 and the water outlet pipe 7;
the bottom of the inner cavity of the anticorrosion box body 1 is a cavity, a plurality of long-handle filter heads 11 are arranged above the cavity, a bearing layer 12, a zeolite filter material layer 13 and an active carbon filter material layer 14 are sequentially arranged above the long-handle filter heads 11 in the inner cavity of the anticorrosion box body 1 from bottom to top, and a stainless steel barrier net 15 is arranged above the active carbon filter material layer 14; a single-hole membrane aerator 16 is arranged in the supporting layer 12, and the single-hole membrane aerator 16 is communicated with the aeration fan 9 through an aeration air inlet pipe 17;
a backwashing water outlet channel 18 is arranged on one side of the upper part of the anti-corrosion box body 1, a filtered water outlet channel 19 is arranged on the outer side of the backwashing water outlet channel 18, the upper part of the backwashing water outlet channel 18 and the upper part of the filtered water outlet channel 19 are communicated with the upper part of the inner cavity of the anti-corrosion box body 1, a backwashing water outlet weir 20 is arranged between the upper part of the backwashing water outlet channel 18 and the inner cavity of the anti-corrosion box body 1, a filtered water outlet weir 21 is arranged between the backwashing water outlet channel 18 and the filtered water outlet channel 19, and the height of the filtered water; a backwashing water drain hole 22 is formed in the bottom of the backwashing water drain channel 18, the backwashing water drain hole 22 is connected with a backwashing water drain pipe 5, a water outlet hole 23 is formed in the bottom of the filtered water outlet channel 19, and the water outlet hole 23 is connected with the water outlet pipe 3;
two normally closed type inspection manholes 24 are arranged on the side wall of the bottom of the inner cavity of the anticorrosion box body 1, a water inlet 25, a backwashing air inlet 26 and an aeration air inlet 30 are arranged at the bottom of the side wall of one side of the anticorrosion box body 1, and a backwashing water inlet 27 and a water outlet 28 are arranged at the bottom of the side wall of the other side of the anticorrosion box body 1; the water inlet hole 25 is connected with the water inlet pipe 2; one end of the backwashing air inlet pipe 6 extends into a cavity at the bottom of the inner cavity of the anti-corrosion box body 1 through a backwashing air inlet hole 26, and the other end of the backwashing air inlet pipe 6 is connected with a backwashing fan 8; one end of the aeration air inlet pipe 17 extends into the anticorrosive box body 1 from an aeration air inlet hole 30 to be connected with the single-hole membrane aerator 16, and the other end of the aeration air inlet pipe 17 is connected with the aeration fan 9; one end of the backwashing water inlet pipe 4 extends into a cavity at the bottom of the inner cavity of the anti-corrosion box body 1 through a backwashing water inlet hole 27, and the other end of the backwashing water inlet pipe 4 is connected with a backwashing water pump 10; the drain pipe 7 is connected with the drain hole 28;
and a plurality of air distribution branch pipes 29 are arranged on two sides of the pipe body of the backwashing air inlet pipe 6 extending into the cavity at the bottom of the inner cavity of the anti-corrosion box body 1, and a plurality of air distribution holes are arranged on the air distribution branch pipes 29.
Further, the thickness of the supporting layer 12 is 300-400 mm; the thickness of the zeolite filter material layer 13 is 1.5-2.5m, the particle size of the zeolite filter material is 2-6mm, and the indexes of the zeolite filter material are as follows: II grade products (environment-friendly light industrial grade) or NH4+ exchange capacity is more than or equal to 100-140mmol/100g + - (-, the total amount of the zeolite is 46-65%); the activated carbon filter material layer 14 is columnar coal activated carbon, the thickness of the activated carbon filter material layer 14 is 1-1.5m, and the diameter of the columnar coal activated carbon is as follows: 4-6mm, length: 4-10mm, iodine adsorption value more than or equal to 900mg/g, specific surface area as follows: 900-1100m2Per g, less than 10% of water, more than 90% of strength and 0.35-0.55g/cm of packing density3。
Further, the filtration speed of the equipment is designed to be 5m/h-6 m/h; designing the empty bed residence time to be 20-30 min; the aeration steam-water ratio is controlled to be 0.5: 1-1.5: 1.
The utility model discloses a working process:
when the equipment normally operates, mine water enters a cavity at the bottom of an inner cavity of the anti-corrosion box body 1 through the water inlet pipe 2, is distributed by the long-handle filter head 11 and then is discharged after sequentially passing through the supporting layer 12, the zeolite filter material layer 13, the activated carbon filter material layer 14, the stainless steel barrier net 15, the filtering water outlet weir 21, the filtering water outlet channel 19 and the water outlet pipe 3, and when the mine water flows through the equipment, the aeration fan 9 performs micro-aeration through the aeration air inlet pipe 17 and the single-hole membrane aerator 16 according to air demand, so that the air demand required by the normal operation of the system is met. And control valves arranged on the backwashing air inlet pipe 6, the backwashing water outlet pipe 5 and the backwashing water inlet pipe 4 are in a closed state during normal operation.
The backwashing adopts gas-water combined backwashing, namely gas washing, gas-water combined washing and rinsing with clear water. During air washing, control valves arranged on the water inlet pipe 2, the water outlet pipe 3, the backwashing water inlet pipe 4 and the backwashing water outlet pipe 5 are in a closed state, valves on the backwashing air inlet pipe 6 are in an open state, and a backwashing fan 8 is started to supply air to the equipment for air washing; after air washing for 3-4min, the backwashing water is startedControl valves arranged at the pump 10, the backwashing water inlet pipe 4 and the backwashing water outlet pipe 5 carry out air-water combined backwashing on the equipment for 4-5 min; after the air-water combined backwashing is finished, a valve at the backwashing air inlet pipe 6 and a backwashing fan 8 are closed, the equipment is rinsed by clear water for 6-8min, finally, a backwashing water pump 10 and related valves are closed, and valves arranged at the water inlet pipe 2 and the water outlet pipe 3 are opened simultaneously, so that the equipment enters a normal filtering state. The air washing strength is 12-15L/m2S, washing intensity of 4-6L/m2.s。
As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (2)
1. The utility model provides a mine water ammonia nitrogen removal equipment which characterized in that: comprises an anti-corrosion box body (1), a water inlet pipe (2), a water outlet pipe (3), a backwashing water inlet pipe (4), a backwashing water outlet pipe (5), a backwashing air inlet pipe (6), an aeration air inlet pipe (17), a water outlet pipe (7), a backwashing fan (8), an aeration fan (9) and a backwashing water pump (10); control valves are arranged on the water inlet pipe (2), the water outlet pipe (3), the backwashing water inlet pipe (4), the backwashing water outlet pipe (5), the aeration air inlet pipe (17), the backwashing air inlet pipe (6) and the water outlet pipe (7);
the bottom of the inner cavity of the anti-corrosion box body (1) is a cavity, a plurality of long-handle filter heads (11) are arranged above the cavity, a bearing layer (12), a zeolite filter material layer (13) and an active carbon filter material layer (14) are sequentially arranged above the long-handle filter heads (11) in the inner cavity of the anti-corrosion box body (1) from bottom to top, and a stainless steel barrier net (15) is arranged above the active carbon filter material layer (14); a single-hole membrane aerator (16) is arranged in the supporting layer (12), and the single-hole membrane aerator (16) is communicated with an aeration fan (9) through an aeration air inlet pipe (17);
a backwashing water outlet channel (18) is arranged on one side of the upper part of the anti-corrosion box body (1), a filtered water outlet channel (19) is arranged on the outer side of the backwashing water outlet channel (18), the upper part of the backwashing water outlet channel (18) and the upper part of the filtered water outlet channel (19) are communicated with the upper part of the inner cavity of the anti-corrosion box body (1), a backwashing water outlet weir (20) is arranged between the upper part of the backwashing water outlet channel (18) and the inner cavity of the anti-corrosion box body (1), a filtered water outlet weir (21) is arranged between the backwashing water outlet channel (18) and the filtered water outlet channel (19), and the height of the filtered water outlet weir (21); a backwashing drain hole (22) is formed in the bottom of the backwashing drain channel (18), the backwashing drain hole (22) is connected with a backwashing drain pipe (5), a water outlet hole (23) is formed in the bottom of the filtered water outlet channel (19), and the water outlet hole (23) is connected with a water outlet pipe (3);
two normally closed type inspection manholes (24) are arranged on the side wall of the bottom of the inner cavity of the anti-corrosion box body (1), a water inlet hole (25), a backwashing air inlet hole (26) and an aeration air inlet hole (30) are arranged at the bottom of the side wall of one side of the anti-corrosion box body (1), and a backwashing water inlet hole (27) and a water outlet hole (28) are arranged at the bottom of the side wall of the other side of the anti-corrosion box body (; the water inlet hole (25) is connected with the water inlet pipe (2); one end of the backwashing air inlet pipe (6) extends into a cavity at the bottom of the inner cavity of the anti-corrosion box body (1) through a backwashing air inlet hole (26), and the other end of the backwashing air inlet pipe (6) is connected with a backwashing fan (8); one end of the aeration air inlet pipe (17) extends into the anticorrosive box body (1) from an aeration air inlet hole (30) to be connected with the single-hole film aerator (16), and the other end of the aeration air inlet pipe (17) is connected with the aeration fan (9); one end of the backwashing water inlet pipe (4) extends into a cavity at the bottom of the inner cavity of the anti-corrosion box body (1) through a backwashing water inlet hole (27), and the other end of the backwashing water inlet pipe (4) is connected with a backwashing water pump (10); the drain pipe (7) is connected with the drain hole (28);
and a plurality of air distribution branch pipes (29) are arranged on two sides of the pipe body of the backwashing air inlet pipe (6) extending into the cavity at the bottom of the inner cavity of the anti-corrosion box body (1), and a plurality of air distribution holes are arranged on the air distribution branch pipes (29).
2. The ammonia nitrogen removal equipment for mine water according to claim 1, characterized in that: the thickness of the bearing layer (12) is 300-400 mm; the thickness of the zeolite filter material layer (13) is 1.5-2.5m, and the particle size of the zeolite filter material is 2-6 mm; the activated carbon filter material layer (14) is columnar coal activated carbon, the thickness of the activated carbon filter material layer (14) is 1-1.5m, and the diameter of the columnar coal activated carbon is as follows: 4-6mm, length: 4-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921052965.XU CN210764849U (en) | 2019-07-03 | 2019-07-03 | Mine water ammonia nitrogen removal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921052965.XU CN210764849U (en) | 2019-07-03 | 2019-07-03 | Mine water ammonia nitrogen removal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210764849U true CN210764849U (en) | 2020-06-16 |
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ID=71033120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921052965.XU Active CN210764849U (en) | 2019-07-03 | 2019-07-03 | Mine water ammonia nitrogen removal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210764849U (en) |
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2019
- 2019-07-03 CN CN201921052965.XU patent/CN210764849U/en active Active
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