CN210620387U

CN210620387U - Double-effect nitrogen and phosphorus removal device

Info

Publication number: CN210620387U
Application number: CN201921456748.7U
Authority: CN
Inventors: 刘丹丹; 梅媛; 赵利娟
Original assignee: Hezheng Environmental Protection Engineering Co ltd
Current assignee: Hezheng Environmental Protection Engineering Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-26
Anticipated expiration: 2029-09-04

Abstract

The utility model relates to a sewage treatment field just discloses a economic benefits and social benefits nitrogen and phosphorus removal device, including the anaerobism pond, anaerobism pond left side fixed connection inlet tube, the inlet tube is the cylinder type hollow tube, and advances water piping connection to the inside in anaerobism pond, the perpendicular fixed mounting of anaerobism pond inner chamber equidistance has backup pad and backup pad to have four groups, the backup pad is the rectangular shaped plate of intermediate position fretwork, fixed mounting has the filter screen in the backup pad, and the mesh diameter of filter screen reduces by the left right side in proper order, anaerobism pond right side fixed mounting has the oxygen deficiency pond, through the connecting pipe intercommunication between anaerobism pond and the oxygen deficiency pond, the anaerobism pond is the hollow box of cuboid. The utility model discloses in, adopt economic benefits and social benefits nitrogen and phosphorus removal technology and cooperation materialization dephosphorization, can ensure that play water TN and is less than or equal to 15mg/L, TP is less than or equal to 0.5mg/L, has improved the efficiency of getting rid of nitrogen, phosphorus greatly, and the while alkalinity in this technology reducible system, the consumption of carbon source reduce plus alkalinity and carbon source to reduce system's working costs.

Description

Double-effect nitrogen and phosphorus removal device

Technical Field

The utility model relates to a sewage treatment field especially relates to a economic benefits and social benefits nitrogen and phosphorus removal device.

Background

The sewage station can emit odor in the operation process, gaseous pollutants mainly comprise ammonia, hydrogen sulfide, organic waste gas and the like, strong odor threatens the health and safety of field workers, and the pollution to the surrounding environment is caused, so that the sewage station is dismantled.

The deodorization technology has decades of operation experience abroad, and with the improvement of domestic economic level and the enhancement of environmental awareness, the deodorization technology is also beginning to be prosperous and has a vigorous trend in China. At present, the main sewage odor deodorization technologies at home and abroad mainly include an activated carbon adsorption method, a thermal oxidation method, a deodorization solution deodorization method, an oxygen ion group deodorization method, a chemical washing method, a biological filtration method and the like. Each method has the advantages and disadvantages, such as an activated carbon adsorption method, mainly utilizes the physical adsorption effect of activated carbon on odor to deodorize, has the advantages of simple method and structure, is only suitable for low-concentration odor and is suitable for treating low-gas-volume odor, and is not generally used as a first-stage main deodorization device but used as a subsequent fine treatment device; the chemical deodorizing method utilizes the irreversible chemical reaction between the odor components and the main components of chemical liquid medicine to produce new odorless substance so as to attain the goal of deodorization. Harm, the foul smell material that the sewage treatment station produced are of a great variety, and the source is extensive, all can cause the poison of different degree to human breathing, digestion, cardiovascular, endocrine and nervous system, but present deodorization technology is more, but many to single composition processing, do not form unified deodorization system, the utility model provides a novel foul smell pollutant processing system that reasonable in design, pertinence are extensive, the treatment effect is good solves above-mentioned defect. Therefore, a double-effect nitrogen and phosphorus removal device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems existing in the prior art and provides a double-effect nitrogen and phosphorus removal device.

In order to realize the above-mentioned purpose, the utility model discloses a following technical scheme, a economic benefits and social benefits nitrogen and phosphorus removal device, including the anaerobism pond, anaerobism pond left side fixed connection inlet tube, the inlet tube is cylinder type hollow tube, and advances water piping connection to the inside in anaerobism pond, the perpendicular fixed mounting of anaerobism pond inner chamber equidistance has backup pad and backup pad to have four groups, the backup pad is the rectangular plate of intermediate position fretwork, fixed mounting has the filter screen in the backup pad, and the mesh diameter of filter screen reduces by the left side to the right side in proper order.

Anaerobic tank right side fixed mounting has the oxygen deficiency pond, through the connecting pipe intercommunication between anaerobic pond and the oxygen deficiency pond, the anaerobic pond is the hollow box of cuboid, oxygen deficiency pond inner chamber fixed mounting has nitrobacteria board, nitrobacteria board is the rectangular plate of arcwall face, and nitrobacteria board slope fixed mounting is in the inside in anaerobic pond.

Preferably, the right side of the anoxic tank is fixedly provided with the aeration tank, the anoxic tank is communicated with the aeration tank through a connecting pipe, the aeration tank is a cuboid hollow box body, the middle part of the inner cavity of the aeration tank is fixedly provided with the aeration tank, the upper side of the aeration tank is fixedly provided with an air inlet pipe, the lower side of the aeration tank is fixedly provided with an air outlet pipe, and the outer wall of the aeration tank is provided with a plurality of groups of one-way holes.

Preferably, an ecological tank is fixedly installed on the right side of the aeration tank, the ecological tank is communicated with the aeration tank through a connecting pipe, the ecological tank is a cuboid hollow box body, and an artificial ecological floating bed is fixedly installed in the middle of the ecological tank.

Preferably, a mud-water separation tank is fixedly mounted on the right side of the ecological tank, and a mud-water separator is fixedly mounted at the bottom of the mud-water separation tank.

Preferably, the step of mud-water separator and dam type, mud-water separator right side fixed mounting purification tank, the inside perpendicular fixed mounting of purification tank has the carbon net, purification tank right side fixed mounting delivery port.

A double-effect nitrogen and phosphorus removal process comprises the following steps:

the first step is as follows: the malodorous gas generated in each treatment structure is sent to a spray tower for primary treatment under the action of a suction opening, a conveying air pipe and a fan. The odorous gas is sufficiently contacted with water, and the odorous particles in the air are absorbed and removed by the water. A present-level processing system;

the second step is that: the waste gas treated by the spray tower is treated by a dryer;

the third step: and (3) fully removing moisture in the waste gas through a dryer, and treating the waste gas through a UV photolysis device. Under the irradiation of a C-band ultraviolet lamp, sending the mixture to a composite photocatalytic metal nickel net unit, and under the irradiation of the C-band ultraviolet lamp, forming TiO2 photocatalytic oxidation which is the result of the combined action of active hydroxyl (. OH) and other active oxidation substances (. O2-,. OOH, H2O 2). The OH group generated on the surface of TiO2 has high reaction activity and reaction energy higher than that of various chemical bond energies in organic matters, and can quickly and effectively decompose the organic matters by the synergistic effect of O2-,. OOH and H2O2 active oxidation substances.

The fourth step: and the waste gas decomposed by the UV photolyzer enters a biological deodorization filter for further absorbing and removing organic molecules in the waste gas. The odor passes through a wet, porous and active microorganism-filled filter layer, and the odor is absorbed and decomposed into simple inorganic substances such as CO2, H2O and the like by utilizing the functions of adsorption, absorption and degradation of the odor substances by microbial cells.

The fifth step: the treated waste gas reaching the standard is led to be high through a chimney and discharged (the height is more than 15 m).

Advantageous effects

The utility model provides a double-effect nitrogen and phosphorus removal device. The method has the following beneficial effects:

(1) the double-effect nitrogen and phosphorus removal device adopts a double-effect nitrogen and phosphorus removal process and is matched with physical and chemical phosphorus removal, the TN of discharged water is less than or equal to 15mg/L, and TP of discharged water is less than or equal to 0.5mg/L, the nitrogen and phosphorus removal efficiency is greatly improved, and meanwhile, the process can reduce the consumption of alkalinity and carbon sources in a system and reduce the external alkalinity and carbon sources, so that the operation cost of the system is reduced.

(2) This economic benefits and social benefits nitrogen and phosphorus removal device, fixed mounting has the filter screen in the backup pad, and the mesh diameter of filter screen reduces by the left hand right side in proper order, and inside sewage got into the anaerobism pond through the inlet tube, sewage loops through four group's filter screens, and the filter screen can progressively get rid of the great debris of volume in the sewage, reaches preliminary purification's effect.

(3) This economic benefits and social benefits nitrogen and phosphorus removal device sets up the nitrobacteria version into the area of contact that curved face can increase nitrobacteria board and sewage, sets up the whole area that can increase the nitrobacteria board with the slope of nitrobacteria board, through the area of contact who increases nitrobacteria board and sewage, improves the treatment effeciency of this reaction tank.

(4) This economic and social benefits nitrogen and phosphorus removal device, ecological pond middle part fixed mounting artificial ecology float the bed, and artificial ecology floats the bed and utilizes the nitrogen ion of root of plant absorption sewage.

(5) This economic benefits and social benefits nitrogen and phosphorus removal device, the step of mud-water separator and dam type, mud-water separator filter the earth granule in with sewage, and water can flow through in mud-water separator's upper end, and granule such as earth silt can deposit in mud-water separator's bottom under the gravity of self, and mud-water separation pond right side fixed mounting purifying tank, the inside perpendicular fixed mounting of purifying tank has the carbon net, utilizes the adhesion of carbon to purify the tiny particle in the sewage.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of the inside of the anaerobic tank of the present invention;

FIG. 3 is a schematic view of the interior of the anoxic tank of the present invention;

FIG. 4 is a schematic view of the inside of an aeration tank according to the present invention;

fig. 5 is a schematic view of the interior of the ecological pool of the present invention;

FIG. 6 is a schematic view of the inside of the mud-water separation tank of the present invention;

fig. 7 is a schematic view of the inside of the purification tank of the present invention.

Illustration of the drawings:

1 anaerobic tank, 2 water inlet pipes, 3 supporting plates, 4 filter screens, 5 anoxic tanks, 6 nitrobacteria plates, 7 aeration tanks, 8 aeration tanks, 9 air inlet pipes, 10 air outlet pipes, 11 ecological tanks, 12 artificial ecological floating beds, 13 mud-water separation tanks, 14 mud-water separators, 15 purification tanks, 16 carbon nets and 17 water outlets.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the utility model provides a economic benefits and social benefits nitrogen and phosphorus removal device, as shown in fig. 1-7, including

anaerobism pond

1, 1 left side fixed connection inlet tube 2 in anaerobism pond, inlet tube 2 is the cylinder type hollow tube, and inlet tube 2 is connected to the inside in

anaerobism pond

1, 1 inner chamber equidistance vertical fixation in anaerobism pond installs backup pad 3 and backup pad 3 has four groups, backup pad 3 is the rectangular shaped plate of intermediate position fretwork, fixed mounting has filter screen 4 in the backup pad 3, and filter screen 4's mesh diameter reduces by left right side in proper order, and sewage is getting into anaerobism pond 1 through inlet tube 2 inside, and sewage loops through four groups of filter screens 4, and filter screen 4 can progressively get rid of the great debris of volume in the sewage, reaches preliminary purification.

1 right side fixed mounting in anaerobism pond has oxygen deficiency pond 5, communicate through the connecting pipe between anaerobism pond 1 and the oxygen deficiency pond 5, anaerobism pond 5 is the hollow box of cuboid, 5 inner chamber fixed mounting in oxygen deficiency pond have nitrobacteria board 6, nitrobacteria board 6 is the rectangular plate of arcwall face, and nitrobacteria board 6 slope fixed mounting in the inside of anaerobism pond 5, sets up nitrobacteria board 6 to the curved face and can increase the area of contact of nitrobacteria board 6 and sewage, and the setting of the slope of nitrobacteria board 6 can increase the whole area of nitrobacteria board 6, through the area of contact that increases nitrobacteria board 6 and sewage, improves the treatment effeciency of this reaction tank.

5 right sides fixed mounting aeration tank 7 in oxygen deficiency pond, communicate through the connecting pipe between oxygen deficiency pond 5 and the aeration tank 7, aeration tank 7 is the hollow box of cuboid, 7 inner chamber middle parts fixed mounting in aeration tank have

aeration tank

8, 8 upside fixed mounting in aeration tank have

intake pipe

9, 8 downside fixed mounting in aeration tank have outlet duct 10, it has the one-way hole of multiunit to open on aeration tank 8's the outer wall, blows to 8 insides in aeration tank through intake pipe 9 when using, carries out aeration treatment to the water of aeration tank 7 inside.

Aeration tank 7 right side fixed mounting has ecological pond 11, communicate through the connecting pipe between ecological pond 11 and the aeration tank 7, ecological pond 11 is the hollow box of cuboid, 11 middle part fixed mounting artificial ecology of ecological pond floats bed 12, and artificial ecology floats bed 12 and utilizes the plant root to absorb the nitrogen ion in the sewage. Ecological pond 11 right side fixed mounting mud-water separation tank 13, mud-water separation tank 13 bottom fixed mounting has mud-water separator 14, the step of mud-water separator 14 and dam type, mud-water separator 14 filters earth granule in with sewage, and water can flow through in mud-water separator 14's upper end, and granule such as earth silt can deposit in mud-water separator 14's bottom under the gravity of self, mud-water separation tank 13 right side fixed mounting purification tank 15, the inside perpendicular fixed mounting of purification tank 15 has carbon net 16, utilizes the adhesion of carbon to purify the tiny particle in the sewage, purification tank 15 right side fixed mounting delivery port 17.

the first step is as follows: the malodorous gas generated in each treatment structure is sent to a spray tower for primary treatment under the action of a suction opening, a conveying air pipe and a fan. The odorous gas is sufficiently contacted with water, and the odorous particles in the air are absorbed and removed by the water. The treatment system at the stage (mainly used for treating particulate matters, floccules, hydrogen sulfide, ammonia, acidic waste gas and components which are easy to dissolve in an aqueous solution in the malodorous gas);

the second step is that: the waste gas treated by the spray tower is treated by a dryer (the main function is to intercept floccules in the waste gas and remove the water content in the waste gas to below 85 percent so as to ensure the normal operation of the next treatment procedure);

the third step: and (3) fully removing moisture in the waste gas through a dryer, and treating the waste gas through a UV photolysis device. Under the irradiation of a C-band ultraviolet lamp, sending the mixture to a composite photocatalytic metal nickel net unit, and under the irradiation of the C-band ultraviolet lamp, forming TiO2 photocatalytic oxidation which is the result of the combined action of active hydroxyl (. OH) and other active oxidation substances (. O2-,. OOH, H2O 2). The OH group generated on the surface of TiO2 has high reaction activity and reaction energy higher than that of various chemical bond energies in organic matters, and can quickly and effectively decompose the organic matters by the synergistic effect of O2-,. OOH and H2O2 active oxidation substances. (main function: removing benzene, toluene, xylene, non-methane total hydrocarbons and VOCs from a part of the exhaust gas, and decomposing unstable organic components)

The fourth step: and the waste gas decomposed by the UV photolyzer enters a biological deodorization filter for further absorbing and removing organic molecules in the waste gas. The odor passes through a wet, porous and active microorganism-filled filter layer, and the odor is absorbed and decomposed into simple inorganic substances such as CO2, H2O and the like by utilizing the functions of adsorption, absorption and degradation of the odor substances by microbial cells. (mainly has the functions of further removing organic components in the waste gas and ensuring that VOCs reach the standard and are discharged).

The utility model discloses a theory of operation:

during the use, be connected sewage delivery port and oxidation ditch anaerobism pond 1, make sewage get into inlet tube 2, under the anaerobic condition that does not have dissolved oxygen and nitrate nitrogen to exist, the organic matter in the sewage is decomposed, is metabolized, is digested by anaerobic bacteria for organic matter content in the sewage reduces by a wide margin, and is equipped with a plurality of biofilm carrier filter screens 4 in the inlet tube 2, and network structure can increase the area of contact of water and anaerobe, increases anaerobic treatment efficiency. Then the sewage enters an anoxic tank 5, and nitrate and organic matters are removed by denitrification with denitrifying bacteria in the anoxic tank 5, thereby achieving the dual purposes of denitrification and COD removal, sewage enters the aerobic tank 7 after passing through the anoxic tank 5, the sewage is circularly treated in the aeration tank 8 of the aeration zone, organic matters in the sewage are oxidized and decomposed into more stable inorganic matters through aerobic bacteria, then the stable inorganic matters enter an ecological pool 11, an artificial ecological floating bed 12 is arranged on the water surface of the ecological pool 11, elements such as nitrogen, phosphorus and the like are absorbed by aquatic plants, and the root system of the plant has huge specific surface area, provides good carrier for the microorganism in the water body, plays the role of biomembrane carrier, can well adsorb suspended substances, moreover, the plant root system can also enrich a series of heavy metal elements and organic pollutants in the water body, so that the aim of purifying the water quality is fulfilled; then the sewage enters a mud-water separation tank 13 to further separate sludge impurities in the sewage, finally enters a purification tank 15, is filtered for the last time by a carbon net 16 and is discharged from a water outlet 17.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. The utility model provides a double-effect nitrogen and phosphorus removal device, includes anaerobism pond (1), anaerobism pond (1) left side fixed connection inlet tube (2), inlet tube (2) are the cylinder type hollow tube, and inlet tube (2) are connected to the inside in anaerobism pond (1), its characterized in that: the anaerobic tank (1) is characterized in that supporting plates (3) are vertically and fixedly arranged in the inner cavity of the anaerobic tank (1) at equal intervals, four groups of supporting plates (3) are arranged, and the supporting plates (3) are rectangular plates with hollow middle positions;

an anoxic tank (5) is fixedly installed on the right side of the anaerobic tank (1), the anaerobic tank (1) is communicated with the anoxic tank (5) through a connecting pipe, and the anaerobic tank (1) is a cuboid hollow box body;

an aeration tank (7) is fixedly arranged on the right side of the anoxic tank (5), the anoxic tank (5) is communicated with the aeration tank (7) through a connecting pipe, the aeration tank (7) is a cuboid hollow box body, and an aeration tank (8) is fixedly arranged in the middle of an inner cavity of the aeration tank (7);

aeration tank (7) right side fixed mounting has ecological tank (11), communicate through the connecting pipe between ecological tank (11) and aeration tank (7), ecological tank (11) right side fixed mounting mud-water separation tank (13), mud-water separation tank (13) right side fixed mounting purifying tank (15), the inside perpendicular fixed mounting of purifying tank (15) has carbon net (16), purifying tank (15) right side fixed mounting delivery port (17).

2. The double-effect nitrogen and phosphorus removal device of claim 1, which is characterized in that: oxygen deficiency pond (5) inner chamber fixed mounting has nitrobacteria board (6), nitrobacteria board (6) are the rectangular plate of arcwall face, and nitrobacteria board (6) slope fixed mounting is in the inside of oxygen deficiency pond (5).

3. The double-effect nitrogen and phosphorus removal device of claim 1, which is characterized in that: aeration tank (8) upside fixed mounting has intake pipe (9), aeration tank (8) downside fixed mounting has outlet duct (10), it has the one-way hole of multiunit to open on the outer wall of aeration tank (8).

4. The double-effect nitrogen and phosphorus removal device of claim 1, which is characterized in that: ecological pond (11) are the hollow box of cuboid, ecological pond (11) middle part fixed mounting artificial ecology floats bed (12).

5. The double-effect nitrogen and phosphorus removal device of claim 1, which is characterized in that: fixed mounting has filter screen (4) on backup pad (3), and the mesh diameter of filter screen (4) reduces from left to right in proper order.

6. The double-effect nitrogen and phosphorus removal device of claim 5, wherein: the mesh diameters of the filter screens (4) are reduced from left to right in sequence.