CN109444001B - Granular sludge bed device and method for observing influence factors of rising water flow velocity - Google Patents
Granular sludge bed device and method for observing influence factors of rising water flow velocity Download PDFInfo
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- CN109444001B CN109444001B CN201811341254.4A CN201811341254A CN109444001B CN 109444001 B CN109444001 B CN 109444001B CN 201811341254 A CN201811341254 A CN 201811341254A CN 109444001 B CN109444001 B CN 109444001B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
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- 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
Abstract
The invention discloses a granular sludge bed device and a method for observing influence factors of rising water flow velocity. The device comprises a measuring water supply area, a measuring device main body and a water collecting device; the main body of the measuring device is cylindrical and is sequentially divided into a water distribution area, a granular sludge filling area and a water outlet area from bottom to top. The device is supplied with water from a water supply area, and the water flows through the water distribution area to distribute water uniformly and then ascend through a granular sludge filling area. Water overflows from the water outlet area and is collected by the water collecting device. Measuring the water outlet flow in the water collecting device by using a flowmeter; calculating the average speed of clean water flowing through the granular sludge bed according to the water outlet flow meter; then, the influence of the water head on the average flow speed is observed by adjusting the height of the constant-current water tank; finally, the influence of the height of the sludge bed on the average flow velocity is observed by adjusting the filling quantity of the granular sludge.
Description
Technical Field
The invention belongs to the field of environmental protection equipment, and particularly relates to a granular sludge bed device and method for observing influence factors of rising water flow velocity.
Background
The activities of human life and production discharge a large amount of wastewater, which causes serious pollution to the surface and underground water bodies of China, influences the sustainable development of socioeconomic performance, and wastewater treatment has become a common knowledge for people. The granular sludge bed technology has outstanding advantages in wastewater treatment and is widely focused. Typical examples are anaerobic granular sludge bed, aerobic granular sludge bed, and anaerobic ammoxidation granular sludge bed technologies. The granular sludge can naturally fix microorganisms in the granular sludge, optimize microbial communities, promote weight sedimentation of the microorganisms and reduce loss of functional bacteria, so that high running efficiency and running stability are realized. As a low energy consumption, high efficiency wastewater treatment technology, granular sludge bed technology has formed a series of products such as UASB, EGSB and IC reactors.
In granular sludge beds, the rising water flow rate is related to the contaminant reaction time and its removal efficiency, as well as to the retention of the granular sludge in the reaction system and its support to the reactor function. It is therefore an important parameter for the reactor design and operation. However, no device and method for measuring the rising water flow speed of the granular sludge bed are known so far. The device and the method for measuring the rising water flow speed of the granular sludge bed are established, and have important practical significance for deepening understanding of the working mechanism of the granular sludge bed, improving the configuration of the reactor and optimizing the operation of the reactor.
The invention provides a device for measuring the rising water flow speed of a granular sludge bed, which can flexibly adjust a water head through the lifting of a constant-current water tank; the height of the sludge bed can be flexibly adjusted through the filling amount of the granular sludge; the water flow can be uniformly distributed from bottom to top by arranging the central water inlet pipe and the water distribution chamber; through setting up the lateral wall water tank that goes out, can guarantee that the water flow is stable. The device is simple and convenient to operate, reliable and effective in result and has good application prospect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device for measuring the rising water flow speed of a granular sludge bed.
The specific technical scheme adopted by the invention is as follows:
a granular sludge bed device for observing influence factors of rising water flow velocity comprises a water supply section (I), a measuring device main body and a water collecting device; the main body of the measuring device is a cylindrical barrel which is vertically arranged and is sequentially divided into a water distribution area, a granular sludge filling area and a water outlet area from bottom to top;
the water supply area comprises a water supply storage tank, a lifting water pump and a constant-current water tank; the top of the constant-current water tank is connected with an outlet of a lifting water pipe; the upper part of the constant-current water tank is provided with an overflow pipe; a water supply pipe is arranged at the lower part of the constant-current water tank; the inlet of the lifting water pipe is connected with the outlet of the lifting water pump, and the inlet of the lifting water pump is connected with the water supply storage tank; an overflow connecting pipe is arranged at the bottom of the overflow pipe, and the overflow connecting pipe is communicated with a water supply storage tank and is used for refluxing overflow water of the constant-flow water tank; the water supply pipe is connected with the water inlet pipe of the main body of the measuring device through a connecting hose;
a supporting plate is arranged in the measuring device main body; the supporting plate is arranged in parallel with the bottom surface of the main body of the measuring device and separates the water distribution area from the granular sludge filling area; the supporting plate is provided with holes for water to pass through; the water distribution area comprises a water distribution chamber and a water inlet pipe; the water distribution chamber is communicated with a water supply area through a water inlet pipe; the water inlet pipe is used as a water inlet of the main body of the measuring device; the granular sludge filling area comprises a granular sludge filling chamber; filling granular sludge in the granular sludge filling chamber to form a granular sludge bed; the water outlet area is connected with the water collecting device;
the water collecting device comprises a water outlet tank, a flowmeter and a water collecting storage tank; the water outlet tank is connected with the water outlet area; the water outlet tank is also connected with a water collecting storage tank through a water outlet pipe; the flowmeter is arranged on the water outlet pipe and used for measuring the water outlet flow.
Preferably, the volume ratio of the water distribution area to the granular sludge filling area to the water outlet area is 1: 8-10: 1.5 to 2.
Preferably, the water inlet pipe is a long straight thin pipe with the pipe diameter of 1-2 cm; the water inlet pipe is vertically arranged in the main body of the measuring device; the bottom end of the water inlet pipe is fixed on a spiral fixing pile which is arranged at the center of the bottom of the water distribution chamber; the top end of the water inlet pipe extends out of the cylinder main body by 2-3 cm; two symmetrical water outlet holes are drilled at the position of the water inlet pipe, which is 0.5 cm to 1cm away from the bottom, for water supply. The clean water enters the water distribution chamber through the water outlet at the bottom end of the water inlet pipe, and flows upwards through the supporting plate after being uniformly mixed. Further preferably, the water inlet pipe is vertically fixed with the spiral fixing pile of the water distribution area through the detachable semicircular cover of the measuring device main body.
Preferably, the inlet of the lifting water pump is connected with the side wall of the water supply storage tank, and the connection position is 1-2 cm away from the bottom of the water supply storage tank; the outlet of the lifting water pipe is arranged at a position 1-2 cm above the overflow pipe; the water supply pipe is arranged on the side wall of the constant-current water tank and is 1-2 cm away from the bottom of the constant-current water tank.
Preferably, the supporting plate is composed of a bracket and an iron wire net, the bracket is fixed at the bottom of the granular sludge filling chamber, and the iron wire net is placed on the bracket.
Preferably, the measuring device body further includes a detachable semicircular cap; the detachable semicircular cover is arranged at the top of the main body of the measuring device, the two detachable semicircular covers form a circular cover, and a mud adding hole is formed in the detachable semicircular cover and is used for adding granular mud.
Preferably, the water outlet area is provided with a slit which is used as a water outlet of the main body of the measuring device; the semi-cylindrical water outlet tank is connected with the water outlet area through a slit.
The invention also provides a method for observing the influence factors of the rising water flow velocity, which comprises the following steps:
firstly, respectively filling a water supply storage tank and a constant-current water tank with clean water in a water supply area; pumping the cleaning water in the water supply storage tank into the constant-current water tank by using the lifting water pump; after the liquid level of the constant-current water tank rises to the overflow pipe, clean water returns to the water supply storage tank through the overflow connecting pipe, so that the stability of the water head of the constant-current water tank is ensured; the constant-current water tank supplies water to the water inlet pipe through a water inlet connecting hose; clean water flows into a water distribution chamber in the water distribution area through a water inlet pipe; in the water distribution area, water flows are uniformly mixed under the action of the resistances of the bottom and the side walls of the water distribution chamber; then, the waste water rises to enter a granular sludge filling chamber of the granular sludge filling area through a supporting plate; in the granular sludge filling area, a certain amount of granular sludge is filled in the granular sludge filling chamber to form a granular sludge bed; the water flow passes through gaps among the granular sludge, flows through the granular sludge bed and enters the water outlet area; the water flow flows into the water outlet tank through the water outlet area, flows into the water collecting storage tank through the water outlet pipe, and the water flow is measured by the flowmeter; calculating the average speed of clean water flowing through the granular sludge bed according to the water outlet flow meter; then, the influence of the water head on the average flow speed is observed by adjusting the height of the constant-current water tank; finally, the influence of the height of the sludge bed on the average flow velocity is observed by adjusting the filling quantity of the granular sludge.
The invention has the advantages that: 1. the water head can be flexibly adjusted through the lifting of the constant-current water tank; 2. the height of the sludge bed can be flexibly adjusted through the filling amount of the granular sludge; 3. the water flow can be uniformly distributed from bottom to top by arranging the central water inlet pipe and the water distribution chamber; 4. through setting up the lateral wall water tank that goes out, can guarantee that the water flow is stable. 5. The device is simple and convenient to operate, reliable and effective in result and has good application prospect.
Drawings
FIG. 1 is a block diagram of a device for measuring the rising water flow rate of a granular sludge bed;
FIG. 2 is a schematic view of a support plate structure;
FIG. 3 is a schematic view of the structure of the water outlet hole of the water inlet pipe;
fig. 4 is a top view of the device body.
In the figure: the water supply area I, the water distribution area II, the granular sludge filling area III, the water outlet area IV, the water supply storage tank 1, the lifting water pump 2, the lifting water pipe 3, the constant-current water tank 4, the overflow pipe 5, the overflow connecting pipe 6, the connecting hose 7, the water inlet pipe 8, the water distribution chamber 9, the mud adding hole 10, the granular sludge filling chamber 11, the granular sludge bed 12, the detachable semicircular cover 13, the slit 14, the water outlet tank 15, the water stop clamp 16, the water outlet pipe 17, the flowmeter 18, the water collecting storage tank 19, the supporting plate 20, the granular sludge 21, the bracket 22, the wire netting 23, the water outlet hole 24, the spiral fixing pile 25 and the water supply pipe 26.
Detailed Description
The invention is further illustrated and described below with reference to the drawings and specific embodiments.
As shown in FIG. 1, the granular sludge bed device for observing the influence factors of the rising water flow velocity comprises a water supply area I, a measuring device main body and a water collecting device.
The water supply area I is independent of the main body of the measuring device and is communicated with the water distribution area II through a water inlet pipe 8; the water supply area I is provided with a water supply storage tank 1, a lifting water pump 2, a lifting water pipe 3, a constant-current water tank 4, an overflow pipe 5, an overflow connecting pipe 6 and a connecting hose 7. In the water supply area I, an overflow pipe 5 is positioned on the side wall of the constant-current water tank 4, an overflow connecting pipe 6 is arranged at the bottom of the overflow pipe 5, and the overflow connecting pipe 6 is communicated with the water supply storage tank 1 and is used for refluxing overflow water of the constant-current water tank 4. One end inlet of the lifting water pipe 3 is connected with the outlet of the lifting water pump 2; an inlet of the lifting water pump 2 is connected with the side wall of the water supply storage tank 1 at a position 1-2 cm away from the bottom; the outlet of the lifting water pipe 3 is arranged at a position 1-2 cm above the water surface of the side wall of the constant-current water tank 4; a water supply pipe 26 is arranged at the lower part of the side wall of the constant-current water tank 4, and the water supply pipe 26 is 1cm to 2cm away from the bottom of the constant-current water tank 4; one end of the connection hose 7 is connected to the water supply pipe 26, and the other end is connected to the water distribution chamber 9 of the measuring device main body.
The main body of the measuring device is cylindrical and is sequentially divided into a water distribution area II, a granular sludge filling area III and a water outlet area IV from bottom to top; the supporting plate 20 is separated between the granular sludge filling area III and the water distribution area II; the top of the main body of the measuring device is provided with a detachable semicircular cover 13. The water distribution area II is positioned at the bottom of the device main body. The water distribution area II comprises a water distribution chamber 9 and a water inlet pipe 8; the water distribution chamber 9 is communicated with the water supply area I through a water inlet pipe 8; the water inlet pipe 8 is used as a water inlet of the main body of the measuring device. The granular sludge filling area III comprises a granular sludge filling chamber 11, granular sludge 21 is filled in the granular sludge filling chamber 11, and the granular sludge 21 is uniformly stacked on a supporting plate 20 to form a granular sludge bed 12. The water outlet area IV is connected with a water collecting device, and water is discharged through overflow, and other general methods can be used. In addition, the volume ratio of the water distribution chamber 9 to the granular sludge filling chamber 11 to the water outlet area IV is 1: 8-10: 1.5 to 2. But the volume ratio can be changed correspondingly according to different requirements.
In this embodiment, the water inlet pipe 8 is a long straight thin pipe with a pipe diameter of 1-2 cm and is positioned in the main body of the measuring device. The implementation mode is various, and the adjustment can be carried out according to different requirements. The bottom end of the water inlet pipe 8 is fixed on a spiral fixing pile 25, and the spiral fixing pile 25 is arranged at the center of the bottom of the water distribution chamber 9. Two symmetrical water outlet holes 24 are drilled at the position of the water inlet pipe, which is 0.5 cm to 1cm away from the bottom. The upper end of the water inlet pipe 8 is communicated with a water supply pipe 26 of the constant-current water tank 4 through a connecting hose 7. The upper end of the water inlet pipe 8 extends out of the cylinder body by 2-3 cm as shown in figure 3. The water inlet pipe 8 is vertically fixed with a spiral fixing pile 25 of the water distribution chamber 9 through a detachable semicircular cover 13 of the measuring device main body; during testing, clean water enters the water distribution chamber 9 through the water outlet 24 at the bottom end of the water inlet pipe 8, and flows upwards through the support plate 20 after being uniformly mixed.
As shown in fig. 2, the support plate 20 at the bottom of the granular sludge packing chamber 11 is composed of a bracket 22 and a wire net 23, the bracket 22 is fixed to the bottom of the granular sludge packing chamber 11, and the wire net 23 is placed on the bracket 22. The height of the sludge bed 12 is determined by the filling amount of the granular sludge.
The water collecting device is provided with a water outlet tank 15, a water outlet pipe 17, a flowmeter 18 and a water collecting storage tank 19. The water outlet tank 15 is provided outside the main body of the measuring apparatus and has a semi-cylindrical structure. The bottom of the water outlet tank 15 communicates with the inside of the apparatus main body through the slit 14. One end of the water outlet pipe 17 is connected with the water outlet tank 15, and the other end is connected with the water collecting storage tank 19. A flow meter 18 is mounted on the outlet pipe 17 for measuring the flow of the outlet water. A water stop clamp 16 is also located on the outlet pipe 17 upstream of the flow meter 18. As shown in fig. 4, in this embodiment, a detachable semicircular cover 13 is disposed at the top of the main body of the measuring device, two detachable semicircular covers 13 form a circular cover, and a mud adding hole 10 is formed in the detachable semicircular cover 13 for adding granular mud 21.
The method for observing the influence factors of the velocity of the rising water flow based on the device comprises the following steps:
firstly, respectively filling a water supply storage tank 1 and a constant flow water tank 4 with clean water in a water supply area I; pumping the cleaning water in the water supply storage tank 1 into a constant-current water tank 4 by using a lifting water pump 2; after the liquid level of the constant-current water tank 4 rises to the overflow pipe 5, clean water returns to the water supply tank 1 through the overflow connecting pipe 6, so that the water head of the constant-current water tank 4 is ensured to be stable; the constant-current water tank 4 supplies water to the water inlet pipe 8 through the water inlet connecting hose 7; clean water flows into a water distribution chamber 9 in a water distribution area II through a water inlet pipe 8; in the water distribution area II, water flows are uniformly mixed under the action of the resistances of the bottom and the side walls of the water distribution chamber 9; then rises through the support plate 20 into the granular sludge packing chamber 11 of the granular sludge packing region iii; in the granular sludge filling area III, a certain amount of granular sludge 21 is filled in the granular sludge filling chamber 11 to form a granular sludge bed 12; the water flow passes through the gaps between the granular sludge 21, flows through the granular sludge bed 12 and enters the water outlet area IV; the water flow flows into the water outlet tank 15 through the water outlet area IV, flows into the water collecting storage tank 19 through the water outlet pipe 17, and the water outlet flow is measured by the flowmeter 18; calculating the average speed of clean water flowing through the granular sludge bed 12 according to the effluent flow meter; then, the influence of the water head on the average flow speed is observed by adjusting the height of the constant-current water tank 4; finally, the influence of the height of the sludge bed on the average flow velocity is observed by adjusting the filling quantity of the granular sludge.
The above embodiment is only a preferred embodiment of the present invention, but it is not intended to limit the present invention. Various changes and modifications may be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, all the technical schemes obtained by adopting the equivalent substitution or equivalent transformation are within the protection scope of the invention.
Claims (6)
1. The utility model provides an survey granule mud bed device of rising velocity of water influence factor which characterized in that: the device comprises a water supply area (I), a measuring device main body and a water collecting device; the main body of the measuring device is a cylindrical barrel which is vertically arranged and is sequentially divided into a water distribution area (II), a granular sludge filling area (III) and a water outlet area (IV) from bottom to top;
the water supply area (I) comprises a water supply storage tank (1), a lifting water pump (2) and a constant-current water tank (4); the top of the constant-current water tank (4) is connected with an outlet of the lifting water pipe (3); an overflow pipe (5) is arranged at the upper part of the constant-current water tank (4); a water supply pipe (26) is arranged at the lower part of the constant-current water tank (4); an inlet of the lifting water pipe (3) is connected with an outlet of the lifting water pump (2), and an inlet of the lifting water pump (2) is connected with the water supply storage tank (1); an overflow connecting pipe (6) is arranged at the bottom of the overflow pipe (5), and the overflow connecting pipe (6) is communicated with a water supply storage tank (1) and is used for refluxing overflow water of the constant-flow water tank (4); the water supply pipe (26) is connected with the water inlet pipe (8) of the main body of the measuring device through the connecting hose (7);
a supporting plate (20) is arranged in the measuring device main body; the supporting plate (20) is arranged in parallel with the bottom surface of the main body of the measuring device and separates the water distribution area (II) from the granular sludge filling area (III); the supporting plate (20) is provided with holes for water to pass through; the water distribution area (II) comprises a water distribution chamber (9) and a water inlet pipe (8); the water distribution chamber (9) is communicated with the water supply area (I) through a water inlet pipe (8); the water inlet pipe (8) is used as a water inlet of the main body of the measuring device; the granular sludge filling zone (III) comprises a granular sludge filling chamber (11); the granular sludge filling chamber (11) is filled with granular sludge (21) to form a granular sludge bed (12); the water outlet area (IV) is connected with the water collecting device;
the water collecting device comprises a water outlet tank (15), a flowmeter (18) and a water collecting storage tank (19); the water outlet tank (15) is connected with the water outlet area (IV); the water outlet tank (15) is also connected with a water collecting storage tank (19) through a water outlet pipe (17); the flowmeter (18) is arranged on the water outlet pipe (17) and is used for measuring the water outlet flow;
the volume ratio of the water distribution area (II), the granular sludge filling area (III) to the water outlet area (IV) is 1: 8-10: 1.5-2;
the water inlet pipe (8) is a long straight thin pipe with the pipe diameter of 1-2 cm; the water inlet pipe (8) is vertically arranged in the main body of the measuring device; the bottom end of the water inlet pipe (8) is fixed on a spiral fixing pile (25), and the spiral fixing pile (25) is arranged at the center of the bottom of the water distribution chamber (9); the top end of the water inlet pipe (8) extends out of the cylinder main body for 2-3 cm; two symmetrical water outlet holes (24) are drilled at the position, which is 0.5 cm to 1cm away from the bottom, of the water inlet pipe and are used for water supply.
2. A granular sludge bed apparatus as claimed in claim 1 for observing a rising water flow rate influencing factor, wherein: an inlet of the lifting water pump (2) is connected with the side wall of the water supply storage tank (1), and the connection position is 1-2 cm away from the bottom of the water supply storage tank (1); the outlet of the lifting water pipe (3) is arranged at a position 1-2 cm above the overflow pipe (5); the water supply pipe (26) is arranged on the side wall of the constant-current water tank (4) and is 1-2 cm away from the bottom of the constant-current water tank (4).
3. A granular sludge bed apparatus as claimed in claim 1 for observing a rising water flow rate influencing factor, wherein: the supporting plate (20) consists of a bracket (22) and an iron wire net (23), wherein the bracket (22) is fixed at the bottom of the granular sludge filling chamber (11), and the iron wire net (23) is arranged on the bracket (22).
4. A granular sludge bed apparatus as claimed in claim 1 for observing a rising water flow rate influencing factor, wherein: the measuring device main body also comprises a detachable semicircular cover (13); the detachable semicircular cover (13) is arranged at the top of the main body of the measuring device, the two detachable semicircular covers (13) form a circular cover, and a mud adding hole (10) is formed in the detachable semicircular cover (13) and is used for adding granular mud (21).
5. A granular sludge bed apparatus as claimed in claim 1 for observing a rising water flow rate influencing factor, wherein: the water outlet area (IV) is provided with a slit (14) which is used as a water outlet of the main body of the measuring device; the semi-cylindrical water outlet tank (15) is connected with the water outlet area (IV) through a slit.
6. A method for observing a rising water flow velocity influence factor by using the apparatus of claim 1, comprising the steps of:
firstly, respectively filling a water supply storage tank (1) and a constant-current water tank (4) with clean water in a water supply area (I); pumping the cleaning water in the water supply storage tank (1) into the constant-current water tank (4) by using the lifting water pump (2); after the liquid level of the constant-current water tank (4) rises to the overflow pipe (5), clean water returns to the water supply storage tank (1) through the overflow connecting pipe (6), so that the water head stability of the constant-current water tank (4) is ensured; the constant-current water tank (4) supplies water to the water inlet pipe (8) through the water inlet connecting hose (7); clean water flows into a water distribution chamber (9) in the water distribution area (II) through a water inlet pipe (8); in the water distribution area (II), water flows are uniformly mixed under the action of the resistances of the bottom and the side walls of the water distribution chamber (9); then rising through the support plate (20) into the granular sludge filling chamber (11) of the granular sludge filling zone (iii); in the granular sludge filling area (III), a certain amount of granular sludge (21) is filled in the granular sludge filling chamber (11) to form a granular sludge bed (12); the water flow passes through gaps among the granular sludge (21), flows through the granular sludge bed (12) and enters the water outlet area (IV); the water flow flows into the water outlet tank (15) through the water outlet area (IV), then flows into the water collecting storage tank (19) through the water outlet pipe (17), and the water flow is measured by the flowmeter (18); calculating an average velocity of clean water flowing through the granular sludge bed (12) from the effluent flow meter; then, the influence of the water head on the average flow speed is observed by adjusting the height of the constant-current water tank (4); finally, the influence of the height of the sludge bed on the average flow velocity is observed by adjusting the filling quantity of the granular sludge.
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| CN201811341254.4A CN109444001B (en) | 2018-11-12 | 2018-11-12 | Granular sludge bed device and method for observing influence factors of rising water flow velocity |
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| CN209432663U (en) * | 2018-11-12 | 2019-09-24 | 浙江大学 | Observe the granule sludge bed apparatus of ascending current speed influence factor |
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| CN204116175U (en) * | 2014-11-10 | 2015-01-21 | 中国石油天然气股份有限公司 | A kind of flexible particle strength detection device |
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