CN210085228U - Movable integrated device for plate-and-frame filter-pressing, dewatering and cleaning of sludge - Google Patents
Movable integrated device for plate-and-frame filter-pressing, dewatering and cleaning of sludge Download PDFInfo
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- CN210085228U CN210085228U CN201920265603.2U CN201920265603U CN210085228U CN 210085228 U CN210085228 U CN 210085228U CN 201920265603 U CN201920265603 U CN 201920265603U CN 210085228 U CN210085228 U CN 210085228U
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Abstract
The utility model discloses a portable mud sheet frame filter-pressing dehydration and washing integrated device belongs to environmental engineering technical field. The device of the utility model mainly comprises a conditioning tank 1, a plate and frame filter press 2, a pH adjusting tank 4, an active coke adsorption tank 5, an aeration tank 6, a coagulation tank 7, a sedimentation tank 8, a first-level reverse osmosis device 9 and a second-level reverse osmosis device 10. The utility model integrates the sludge treatment system, is suitable for the conditions of small sludge yield, emergency sludge treatment and the like, and the treated filter pressing liquid can reach the B-level standard of the wastewater discharge town sewer water quality standard (CJ 343-2010); furthermore, the utility model discloses focus on retrieving phosphorus, embodied the theory of resource recycling.
Description
Technical Field
The utility model relates to a portable mud sheet frame filter-pressing dehydration and washing integrated device belongs to environmental engineering technical field.
Background
With the development of water treatment engineering in China, the amount of sludge generated by sewage treatment plants is increasing day by day. The water content of the residual sludge is high, organic matters are easy to rot, odor is foul, and the residual sludge contains a large amount of toxic and harmful substances such as heavy metals, germs and the like, the water content standard of the sludge is strictly limited by the nation for the treatment of the sludge, and the water content of the sludge of the urban sewage treatment plant is less than 60 percent after the sludge is treated, so that the sludge can be mixed with garbage for landfill treatment. However, at present, domestic sewage treatment systems of small sewage treatment plants and rural areas in China are not specially provided with sludge treatment systems due to small treatment capacity; the sludge produced in artificial lakes and landscape water bodies also contains a large amount of organic matters, and N, P in the sludge is easily released by stirring to cause eutrophication of the water bodies; rainwater pipelines and the bottom of a river channel can deposit a large amount of sludge, and if the sludge is not cleaned in time, drainage is unsmooth in rainy seasons, so that water trouble is caused. The sludge treatment in the places needs to be regularly, timely and quickly treated, and the treatment scale is not suitable to be too large. However, the existing sludge treatment equipment is large and is not easy to move, so that the sludge treatment equipment cannot be flexibly applied to the scenes.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a portable mud sheet frame filter-pressing dehydration and washing integrated device handles to the mud that output is less, needs regular or emergency treatment, has avoided its secondary pollution to the environment, and the secondary utilization can be retrieved to the accessory substance that produces in the operation process simultaneously, has alleviated ambient pressure.
The utility model relates to a movable integrated device for plate-frame filter-pressing dehydration and cleaning of sludge, which comprises a deep sludge dehydration system, a cleaning system, a resource recovery system and a transportation device,
the sludge dewatering system comprises a conditioning tank (1), a plate-and-frame filter press (2), a pH adjusting tank (4), an activated coke adsorption tank (5), an aeration tank (6), a coagulation tank (7), a sedimentation tank (8), a primary reverse osmosis device (9) and a secondary reverse osmosis device (10);
the resource recovery system comprises a sludge collection device (3), a phosphorus precipitation collection device (11) and a concentrated water collection device (12);
the transportation device is a transportation vehicle (29);
specifically, the sludge outlet end of a conditioning tank (1) is connected with a plate-and-frame filter press (2) through a screw pump (16), the plate-and-frame filter press (2) is externally connected with a sludge collection device (3), the water outlet pipe of the plate-and-frame filter press (2) is connected with a pH adjusting tank (4), the water outlet pipe of the pH adjusting tank (4) is connected with an active coke adsorption tank (5), the water outlet pipe at the upper part of the active coke adsorption tank (5) is connected with an aeration tank (6) through a delivery pump (23), the aeration tank (6), a coagulation tank (7) and a sedimentation tank (8) are sequentially separated by a baffle plate, a phosphorus precipitation collection device (11) is connected with the bottom of the sedimentation tank (8), the water outlet of the sedimentation tank (8) is connected with a primary reverse osmosis device (9), the primary reverse osmosis device (9) is connected with a secondary reverse osmosis device (10), the primary reverse osmosis device (9) and the secondary, one of the water outlets of the secondary reverse osmosis device (10) is connected with the outside, and the other water outlet is connected with the plate-and-frame filter press (2).
In an embodiment of the present invention, the cleaning system is: the water outlet of the secondary reverse osmosis device 10 is connected with the plate-and-frame filter press 2 through a delivery pump 28 and is used for cleaning the plate-and-frame filter press 2.
In one embodiment of the present invention, specifically, the sludge outlet end of the conditioning tank 1 is connected to the plate-and-frame filter press 2 through a screw pump 16, the plate-and-frame filter press 2 is externally connected to a sludge collection device 3, the water outlet pipe of the plate-and-frame filter press 2 is connected to the pH adjusting tank 4 through a transfer pump 17, the pH adjusting tank 4 is externally provided with a No. 2 medicament storage tank 19 for adjusting pH, the water outlet pipe of the pH adjusting tank 4 is connected to the active coke adsorption tank 5 through a transfer pump 20, the water outlet pipe at the upper part of the active coke adsorption tank 5 is connected to the aeration tank 6 through a transfer pump 23, the aeration tank 6, the coagulation tank 7, the sedimentation tank 8 are sequentially separated by a baffle, the phosphorus-containing precipitation collection device 11 is connected to the bottom of the sedimentation tank 8, the water outlet of the sedimentation tank 8 is connected to the primary reverse osmosis device 9 through a transfer pump 27, the primary reverse osmosis device 9 is connected to the secondary, one of the water outlets of the secondary reverse osmosis device 10 is connected with the outside, and the other water outlet is connected with the plate-and-frame filter press 2 through a delivery pump 28.
In one embodiment of the utility model, the No. 1 medicament storage tank (13) is connected with the conditioning pool (1) through a medicament conveying control box (14).
In an embodiment of the present invention, the No. 1 chemical storage tank 13 controls the chemical feeding amount through the chemical delivery control box 14 for conditioning sludge.
In an embodiment of the present invention, a stirrer 18 is disposed inside the pH adjusting tank 4.
In one embodiment of the present invention, the active coke adsorption tank 5 is provided with active coke filler 21 and stone supporting layer 22.
In one embodiment of the present invention, the pH adjusting tank 4 is connected to the bottom of the activated coke adsorption tank 5.
In an embodiment of the present invention, the height of the baffle plate enables the mixed liquid to sequentially pass through the aeration tank 6, the coagulation tank 7 and the sedimentation tank 8 by gravity.
In one embodiment of the present invention, an aeration system 24 is provided at the bottom of the aeration tank 6, and a No. 3 chemical storage tank 26 is provided outside the coagulation tank 7, and a stirrer 25 is provided inside; and the bottom of the sedimentation tank 8 is externally connected with a phosphorus-containing sediment collecting device 11 for collecting sediment and recycling phosphorus resources.
In an embodiment of the present invention, the conditioning agent in the agent storage tank 13 of number 1 is FeCl3The mass ratio of lime to Polyacrylamide (PAM) is 3:15: 0.7. Wherein FeCl3Lime can change the binding force between particles in the sludge and water, and the sludge dewatering performance is improved; PAM can make suspended particles flocculate through the action of electric neutralization and adsorption bridging.
In one embodiment of the present invention, the pH in the pH adjusting tank 4 is 7.0 to 8.0.
In an embodiment of the present invention, the chemical added in the coagulation tank 7 is polyaluminium chloride (PAC) for chemical phosphorus removal.
The utility model discloses the beneficial effect who gains:
(1) firstly, adding a conditioning agent FeCl into a conditioning tank in a deep dehydration system3Lime, PAM, FeCl3Lime can change the binding force between particles in the sludge and water, and the sludge dewatering performance is improved; PAM can make suspended particles flocculate through the action of electric neutralization and adsorption bridging.
(2) The surface of the active coke in the active coke adsorption tank is rich in functional groups such as hydroxyl, carbonyl and the like, and can adsorb refractory organic matters and nitrogen and phosphorus pollutants in water through van der Waals force, electrostatic interaction, complex reaction and the like. After treatment, the chroma of the press filtrate is reduced, the nondegradable COD is changed into the nondegradable COD, and the biodegradability of the press filtrate is improved.
(3) Converting organic phosphorus in the filtrate into inorganic phosphorus by aeration, and adding a certain amount of polyaluminium chloride (PAC) for chemical phosphorus removal; and finally, the mixed solution enters a sedimentation tank for sedimentation and layering, the formed sediment is treated in a centralized manner and is used for resource recovery, and the effluent is conveyed to the next stage of treatment.
(4) The effluent after dephosphorization sequentially passes through two stages of reverse osmosis devices, impurities such as ions, organic matters, bacteria, viruses and the like in the water can be removed, the generated concentrated water enters a collecting device, wherein the concentrated water contains COD with higher concentration, and the product of the concentrated water can generate resource gas methane or be used as a supplementary carbon source of a sewage treatment plant after anaerobic fermentation; the produced effluent can be used as the cleaning water of the plate-and-frame filter press.
(5) The utility model discloses with sludge treatment system integration, set up mud deep dehydration system, cleaning system and resource recovery system, be applicable to sewage treatment plant, river course and the artificial water body etc. that sludge production is lower, also can regard as the necessary replenishment of sewage treatment plant sludge treatment processing facility simultaneously, and above-mentioned device can be transported by carrier, carrier includes flat carrier, semitrailer, trailer, or freight train to the mud volume is little, the condition such as mud emergency treatment, and the filter-pressing liquid after the processing can reach "sewage discharge cities and towns sewer water quality standard" (CJ343-2010) B level standard; furthermore, the utility model discloses focus on retrieving phosphorus, embodied the theory of resource recycling.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention; wherein, 1, a conditioning pool; 2, a plate-and-frame filter press; 4, a pH adjusting tank; 5, an active coke adsorption tank; 6, an aeration tank; 7, a coagulation tank; 8, a sedimentation tank; 9, a first-stage reverse osmosis device; 10, a secondary reverse osmosis device; 13, medicament storage tank No. 1; 26, 3 medicament storage tanks; 29, transport vehicle.
FIG. 2 is a schematic view of a process flow of the apparatus provided by the present invention; wherein 1, a conditioning pool; 2, a plate-and-frame filter press; 3, a sludge collecting device; 4, a pH adjusting tank; 5, an active coke adsorption tank; 6, an aeration tank; 7, a coagulation tank; 8, a sedimentation tank; 9, a first-stage reverse osmosis device; 10, a secondary reverse osmosis device; 11, a phosphorus-containing precipitate collecting device; 12, a concentrated water collecting device; 13, medicament storage tank No. 1; 14, a medicament delivery control box; 15, a stirrer; 16, a screw pump; 17, a delivery pump; 18, a stirrer; 19, 2 medicament storage tank; 20, a delivery pump; 21, active coke filler; 22, a stone bearing layer; 23, a delivery pump; 24, an aeration system; 25, a stirrer; 26, 3 medicament storage tanks; 27, a delivery pump; and 28, a delivery pump.
Detailed Description
To achieve the above objects, features and advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, the present invention will be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 2, the device of the present invention comprises a sludge deep dehydration system, a cleaning system, a resource recovery system and a transportation device, wherein the sludge deep dehydration system comprises a conditioning tank 1, a plate-and-frame filter press 2, a pH adjusting tank 4, an activated coke adsorption tank 5, an aeration tank 6, a coagulation tank 7, a sedimentation tank 8, a primary reverse osmosis device 9 and a secondary reverse osmosis device 10; the resource recovery system comprises a sludge collection device 3, a phosphorus precipitation collection device 11 and a concentrated water collection device 12; the transport device is a transport vehicle 29 (see fig. 1). Specifically, a conditioning tank 1, a plate and frame filter press 2, a pH adjusting tank 4, an activated coke adsorption tank 5, an aeration tank 6, a coagulation tank 7, a sedimentation tank 8, a primary reverse osmosis device 9 and a secondary reverse osmosis device 10 are connected sequentially through a pipeline and/or a pump: wherein the conditioning pool 1 is internally provided with a stirrer 15, a No. 1 medicament storage tank 13 which is arranged outside controls the dosage of medicament through a medicament conveying control box 14 and is used for conditioning sludge, a sludge outlet end is connected with the plate-and-frame filter press 2 through a screw pump 16, the plate-and-frame filter press 2 is externally connected with a sludge collecting device 3, a water outlet pipe is connected with the pH adjusting pool 4 through a conveying pump 17, the pH adjusting pool 4 is internally provided with a stirrer 18, the outside is provided with a No. 2 medicament storage tank 19 for adjusting pH, a water outlet pipe is connected with the active coke adsorption pool 5 through a conveying pump 20, the active coke adsorption pool 5 is internally provided with active coke filler 21 and a stone supporting layer 22, the water outlet pipe is connected with the aeration pool 6 through a conveying pump 23, the bottom of the aeration pool 6 is provided with an aeration system 24, the mixed liquid flows into the coagulation pool 7 to be mixed with the medicament, the coagulation pool 7 is externally provided with a No. 3, the effluent enters a first-stage reverse osmosis device 9 through a delivery pump 27, the bottom of the first-stage reverse osmosis device is externally connected with a phosphorus-containing sediment collecting device 11 for collecting sediment for phosphorus resource recovery, the effluent of the first-stage reverse osmosis device 9 flows into a second-stage reverse osmosis device 10, the concentrated water formed by the first-stage reverse osmosis device 9 and the second-stage reverse osmosis device 10 flows into an externally connected concentrated water collecting device 12, a part of the effluent of the second-stage reverse osmosis device 10 is directly discharged, and a part of the effluent enters a plate and frame filter press 2 through a delivery pump 28 for cleaning the plate.
The utility model discloses the operation flow of device does: FeCl is filled in the No. 1 medicament storage tank 133The solution, the PAM solution and the lime are controlled to enter the conditioning pool 1 through a medicament delivery control box 14 on the delivery pipe; after entering the conditioning tank 1, the sludge is fully mixed with the medicament under the action of the stirrer 15; sludge conditioned by the medicament enters from a feeding hole of a plate-and-frame filter press 2 through a screw pump 16, the sludge squeezed by a plate-and-frame filter press enters a sludge collecting device 3 for incineration, and filtrate generated by filter pressing of the plate-and-frame filter press 2 enters a pH adjusting tank 4 through a delivery pump 17; controlling the hydrochloric acid solution in the No. 2 medicament storage tank 19 to enter a pH adjusting tank 4 through a valve, and uniformly mixing the medicament and the press filtrate by using a stirrer 18; the pressure filtrate after pH adjustment enters from the bottom of the active coke adsorption tank 5 through a delivery pump 20, and the effluent after being adsorbed by the built-in active coke filler 21 (the stone bearing layer 22 plays a role of supporting the active coke filler 21) enters into the aeration tank 6 through a delivery pump 23; after an aeration system 24 at the bottom of the aeration tank 6 is started, the filter pressing liquid and the sludge are uniformly mixed, and the effluent flows into the coagulation tank 7; controlling polyaluminium chloride (PAC) in a No. 3 medicament storage tank 26 to enter a coagulation tank 7 through a valve, uniformly mixing the medicament and the filtrate by using a stirrer 25, and allowing the upper-layer mixed solution to flow into a sedimentation tank 8 for sedimentation; the supernatant enters a first-stage reverse osmosis device 9 through a delivery pump 27, and the formed precipitate can enter a phosphorus-containing precipitate collecting device 11 for recycling, so that the purpose of recycling is synchronously realized; the effluent filtered by the primary reverse osmosis device 9 flows into a secondary reverse osmosis device 10, the concentrated water formed by the primary reverse osmosis device 9 and the secondary reverse osmosis device 10 flows into an external concentrated water collecting device 12, and because the COD concentration in the concentrated water is higher, the product of the anaerobic fermentation can generate resource gas methane or be used as a supplementary carbon source of a sewage treatment plant and the like; and part of the effluent of the secondary reverse osmosis device 10 is directly discharged, and part of the effluent enters the plate-and-frame filter press 2 through the delivery pump 28 and is used for cleaning the plate-and-frame filter press 2, so that the cyclic utilization is realized.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A movable integrated device for filter-pressing, dewatering and cleaning of a sludge plate frame is characterized by comprising a sludge deep dewatering system, a cleaning system, a resource recovery system and a transportation device,
the sludge deep dehydration system comprises a conditioning tank (1), a plate-and-frame filter press (2), a pH adjusting tank (4), an active coke adsorption tank (5), an aeration tank (6), a coagulation tank (7), a sedimentation tank (8), a primary reverse osmosis device (9) and a secondary reverse osmosis device (10);
the resource recovery system comprises a sludge collection device (3), a phosphorus precipitation collection device (11) and a concentrated water collection device (12);
the transportation device is a transportation vehicle (29);
specifically, the sludge outlet end of a conditioning tank (1) is connected with a plate-and-frame filter press (2) through a screw pump (16), the plate-and-frame filter press (2) is externally connected with a sludge collection device (3), the water outlet pipe of the plate-and-frame filter press (2) is connected with a pH adjusting tank (4), the water outlet pipe of the pH adjusting tank (4) is connected with an active coke adsorption tank (5), the water outlet pipe at the upper part of the active coke adsorption tank (5) is connected with an aeration tank (6) through a delivery pump (23), the aeration tank (6), a coagulation tank (7) and a sedimentation tank (8) are sequentially separated by a baffle plate, a phosphorus precipitation collection device (11) is connected with the bottom of the sedimentation tank (8), the water outlet of the sedimentation tank (8) is connected with a primary reverse osmosis device (9), the primary reverse osmosis device (9) is connected with a secondary reverse osmosis device (10), the primary reverse osmosis device (9) and the secondary, one of the water outlets of the secondary reverse osmosis device (10) is connected with the outside, and the other water outlet is connected with the plate-and-frame filter press (2).
2. The movable integrated filter-pressing, dewatering and cleaning device for sludge plates and frames as claimed in claim 1, wherein the conditioning tank (1) is internally provided with a stirrer (15) and externally provided with a No. 1 medicament storage tank (13).
3. The movable integrated filter-pressing, dewatering and cleaning device for the sludge plate and frame according to claim 2, wherein the No. 1 medicament storage tank (13) is connected with the conditioning tank (1) through a medicament conveying control box (14).
4. The integrated filter-press dewatering and cleaning device for the movable sludge plate frame according to claim 1, wherein the activated coke adsorption tank (5) is internally provided with activated coke fillers (21) and a stone supporting layer (22), and the stone supporting layer (22) is positioned at the bottom layer.
5. The integrated device for filter-pressing, dewatering and cleaning of the movable sludge plate frame according to claim 1, characterized in that a No. 2 medicament storage tank (19) is arranged outside the pH adjusting tank (4) for adjusting pH.
6. The integrated filter-press dewatering and cleaning device for the movable sludge plate and frame according to claim 1, wherein the height of the baffle is such that the mixed liquor can pass through the aeration tank (6), the coagulation tank (7) and the sedimentation tank (8) in sequence by gravity.
7. The integrated device for filter-press dewatering and cleaning of mobile sludge plate and frame according to claim 1, characterized in that an aeration system (24) is arranged at the bottom of the aeration tank (6).
8. The integrated device for filter-pressing, dewatering and cleaning of mobile sludge plate and frame according to claim 1, characterized in that a No. 3 medicament storage tank (26) is arranged outside the coagulation tank (7) and a stirrer (25) is arranged inside.
9. The movable integrated filter-press dewatering and cleaning device for sludge with plate and frame filter-press according to claim 1, wherein the secondary reverse osmosis device (10) is connected with the plate and frame filter-press (2) for cleaning the plate and frame filter-press (2).
10. The movable integrated filter-pressing, dewatering and cleaning device for sludge plates and frames as claimed in claim 1, wherein the bottom of the sedimentation tank (8) is externally connected with a phosphorus-containing sediment collecting device (11) for collecting sediment for phosphorus resource recovery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920265603.2U CN210085228U (en) | 2019-03-01 | 2019-03-01 | Movable integrated device for plate-and-frame filter-pressing, dewatering and cleaning of sludge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920265603.2U CN210085228U (en) | 2019-03-01 | 2019-03-01 | Movable integrated device for plate-and-frame filter-pressing, dewatering and cleaning of sludge |
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| CN210085228U true CN210085228U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794618A (en) * | 2020-12-18 | 2021-05-14 | 中交（天津）生态环保设计研究院有限公司 | River, lake and pond polluted sediment modular dehydration method and dehydration system thereof |
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2019
- 2019-03-01 CN CN201920265603.2U patent/CN210085228U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794618A (en) * | 2020-12-18 | 2021-05-14 | 中交（天津）生态环保设计研究院有限公司 | River, lake and pond polluted sediment modular dehydration method and dehydration system thereof |
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