CN220845888U - Sludge dewatering treatment system - Google Patents
Sludge dewatering treatment system Download PDFInfo
- Publication number
- CN220845888U CN220845888U CN202322667516.9U CN202322667516U CN220845888U CN 220845888 U CN220845888 U CN 220845888U CN 202322667516 U CN202322667516 U CN 202322667516U CN 220845888 U CN220845888 U CN 220845888U
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- sludge
- dewatering
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- filter
- press
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- 239000010802 sludge Substances 0.000 title claims abstract description 122
- 230000003750 conditioning effect Effects 0.000 claims abstract description 46
- 102000004190 Enzymes Human genes 0.000 claims abstract description 34
- 108090000790 Enzymes Proteins 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 239000003814 drug Substances 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 29
- 238000001914 filtration Methods 0.000 abstract description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 6
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 6
- 239000004571 lime Substances 0.000 abstract description 6
- 239000012065 filter cake Substances 0.000 abstract description 5
- 230000001143 conditioned effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract 3
- 230000018044 dehydration Effects 0.000 description 16
- 238000006297 dehydration reaction Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000004744 fabric Substances 0.000 description 8
- 238000004064 recycling Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a sludge dewatering treatment system, which belongs to the technical field of sludge treatment and comprises a sludge conditioning unit and a filter pressing dewatering unit which are sequentially connected, wherein the sludge conditioning unit comprises a conditioning tank, the conditioning tank is connected with a biological enzyme reagent adding unit, and the biological enzyme reagent adding unit is used for adding biological enzyme reagents into the conditioning tank. According to the sludge dewatering treatment system provided by the utility model, sludge is sent into the filter chamber of the diaphragm plate-and-frame filter press after being modified and conditioned, the first press filtration and dewatering are realized under the action of the feeding pressure, after the first press filtration and dewatering are finished, the press cavity is inflated by introducing high-pressure fluid into the press cavity through the press pump, the filter cake is subjected to secondary press and deep dewatering, the dewatering period of 1 batch of sludge is about 60 minutes, and the water content of sludge is reduced to below 60% under the condition that no lime is added and biological enzyme agents are adopted, so that the sludge dewatering treatment system is efficient and rapid.
Description
Technical Field
The utility model relates to a sludge dewatering treatment system, and belongs to the technical field of sludge treatment.
Background
Currently, in the treatment of municipal sludge, it is common to utilize flocculants to agglomerate particulate matter in the sludge for easier treatment or separation, and then to perform solid-liquid separation by a dewatering system. The municipal sludge has the characteristics of high organic matter content, strong hydrophilicity and colloid adhesion, and the traditional method for treating the municipal sludge mainly comprises the steps of adding a traditional flocculant for flocculation treatment, then sending the municipal sludge into a filter press for dewatering for 3-4 hours, and obtaining sludge with the water content of more than 65% after the treatment; and the other is that alkaline lime agent is added into the sludge and then the sludge is sent into a filter press for dehydration, so that the reduction target that the water content of municipal sludge is reduced to below 60% can be met. However, the first treatment mode adopts the treatment time of traditional flocculant to be long, the water content is difficult to meet the municipal sludge reduction target, and the second treatment mode adopts the alkaline lime agent to treat municipal sludge, so that the problems of increasing the treatment amount, releasing ammonia nitrogen and being unfavorable for sludge recycling treatment exist.
The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.
Disclosure of utility model
The utility model aims to solve the problems in the prior art, and provides a sludge dewatering treatment system, wherein the water content of sludge after entering a filter press for dewatering is lower than 60%, the water content of sludge is low, the total amount of single-batch sludge is reduced, the dewatering effect is good, and the daily-batch sludge treatment capacity is increased.
The utility model realizes the aim by adopting the following technical scheme:
The sludge dewatering treatment system comprises a sludge conditioning unit and a filter pressing dewatering unit which are sequentially connected, wherein the sludge conditioning unit comprises a conditioning tank, the conditioning tank is connected with a biological enzyme agent adding unit, the biological enzyme agent adding unit is used for adding biological enzyme agents into the conditioning tank, sludge in the conditioning tank is mixed with the biological enzyme agents to carry out modified conditioning on the sludge, and the modified sludge is sent to the filter pressing dewatering unit to carry out dewatering, so that solid-liquid separation of sludge and water is realized.
Optionally, the filter pressing dehydration unit adopts a diaphragm plate-and-frame filter press.
Specifically, filter chambers and squeezing chambers are alternately arranged in the diaphragm plate-and-frame filter press, and the depth of each filter chamber is 18-22mm; the filter chamber is connected with the conditioning tank through the feed pump, and the squeezing cavity is connected with the squeezing pump.
Further, the sludge conditioning unit further comprises an inorganic flocculant adding unit, and the inorganic flocculant adding unit is used for adding an inorganic flocculant into the conditioning tank.
Optionally, the inorganic flocculant is polyaluminum chloride or polyaluminum ferric chloride.
Further, the sludge dewatering treatment system provided by the utility model further comprises a sludge collecting unit, wherein the sludge collecting unit is used for collecting sludge discharged by the filter pressing dewatering unit.
The beneficial effects of the application include, but are not limited to:
According to the sludge dewatering treatment system provided by the utility model, the biological enzyme agent is adopted to carry out modified conditioning on sludge, and an alkaline agent or an oxidant is not required to be added, so that the problems that the alkaline agent or the oxidant increases the treatment amount, releases ammonia nitrogen and is not beneficial to sludge recycling treatment are solved; and after modification and conditioning by adopting biological enzyme agents, the quality of water filtered by the sludge is consistent with the physical and chemical properties of the raw sewage, and the treatment difficulty of the filter-pressed water is small and the investment is low. In addition, the biological enzyme agent has small adding proportion, good dehydration effect, reduced water content of the sludge, less total amount of the corresponding sludge and low sludge disposal cost. The biological enzyme medicament has obvious dewatering effect on industrial sludge of municipal administration, printing and dyeing, electroplating, papermaking, chemical industry and the like, and chemical sludge of petroleum exploitation, petroleum processing and the like, and has wide adaptability.
The sludge is sent into a filter chamber of a diaphragm plate-and-frame filter press after modified conditioning, and is subjected to primary filter pressing dehydration under the action of feed pressure, wherein the pressing time is about 20 minutes, and in order to reduce the water content of sludge, the cavity depth of the filter chamber of the diaphragm plate-and-frame filter press is reduced. After the first press filtration and dehydration are completed, high-pressure fluid is introduced into the press cavity through the press pump to expand the press cavity, the filter cake is subjected to secondary press and deep dehydration, and the second press time is about 35 minutes. The dehydration period of 1 batch of sludge is about 60 minutes, and the water content of sludge is reduced to below 60% under the condition that lime is not added and a biological enzyme medicament is adopted, so that the method is efficient and quick.
The sludge dewatering treatment system provided by the utility model has the advantages that the sludge formed by modifying and conditioning sludge through the biological enzyme agent and press-filtering is good in loosening effect and solubility, the filter cloth is not easy to adhere, the sludge recycling is facilitated, and the filter cloth has a longer service cycle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a sludge dewatering treatment system provided by the utility model;
FIG. 2 is a schematic diagram of the present filter press dewatering unit;
In the figure, 100, a sludge conditioning unit; 110. a conditioning pool; 120. a biological enzyme agent adding unit; 130. an inorganic flocculant adding unit; 200. a filter pressing dehydration unit; 210. a diaphragm plate-and-frame filter press; 220. a feed pump; 230. a squeeze pump; 300. and a sludge collection unit.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but that the present utility model may be practiced otherwise than as described herein. Therefore, the scope of the utility model is not limited by the specific embodiments disclosed below.
As shown in fig. 1 and 2, the sludge dewatering treatment system provided by the present utility model includes a sludge conditioning unit 100 and a filter-press dewatering unit 200 connected in sequence.
The sludge conditioning unit 100 comprises a conditioning tank 110, the conditioning tank 110 is connected with a biological enzyme medicament adding unit 120, and the biological enzyme medicament adding unit 120 is used for adding biological enzyme medicaments into the conditioning tank 110. In the bio-enzyme agent adding unit 120, a powdered or liquid bio-enzyme agent is weighed or is added to the conditioning tank 110 through a metering pump.
The sludge in the conditioning tank 110 is stirred and mixed with the biological enzyme agent to carry out modified conditioning on the sludge, and the modified and conditioned sludge is sent into the filter pressing dehydration unit 200 to be dehydrated, so that the solid-liquid separation of sludge and water is realized.
In practical application, the biological enzyme agent is proportionally added into the conditioning tank 110 to be mixed with the sludge for a certain time, for example, 3-15 minutes, so that the sludge is modified and conditioned by the biological enzyme agent. The bio-enzyme agent of the present utility model is commercially available, for example, a concentrated powder bio-enzyme available from the environmental engineering company of the middle-large Bei Laite (Shandong).
The biological enzyme agent is usually polymerized by small peptide molecules with different surface activities, can penetrate a cell wall membrane structure through enzymolysis, can release intracellular water, can reduce the adhesiveness and interfacial tension between different components of sludge, break the aggregation structure of Extracellular Polymers (EPS) of the sludge, construct a high-pass infiltration channel, effectively mobilize and strip bound water in a sludge body, fully remove the water of the sludge, and combine charged functional groups in the material with Suspended particles (SS) in the sewage to flocculate through charge adsorption aggregation.
In the utility model, biological enzyme agents are adopted to modify and condition the sludge, and alkaline agents or oxidants are not needed to be added, so that the problems that the alkaline agents or oxidants increase the treatment amount, release ammonia nitrogen and are not beneficial to the recycling treatment of the sludge are solved; and after modification and conditioning by adopting biological enzyme agents, the quality of water filtered by the sludge is consistent with the physical and chemical properties of the raw sewage, and the treatment difficulty of the filter-pressed water is small and the investment is low. In addition, the biological enzyme agent has small adding proportion, good dehydration effect, low water content of sludge, less total amount of corresponding sludge and low sludge disposal cost. The biological enzyme medicament has obvious dewatering effect on industrial sludge of municipal administration, printing and dyeing, electroplating, papermaking, chemical industry and the like, and chemical sludge of petroleum exploitation, petroleum processing and the like, and has wide adaptability.
After the modification treatment, the sludge can be conveyed to filter-pressing dehydration equipment for filter pressing by adopting a feed pump 220 such as a screw pump or a plunger pump.
In a preferred embodiment, the filter-press dehydration unit 200 employs a membrane plate-and-frame filter press 210, and filter chambers and press chambers are alternately arranged in the membrane plate-and-frame filter press 210, and the structure is the same as that of a conventional membrane plate-and-frame filter press 210. The filter chamber is connected to the conditioning tank 110 by a feed pump 220 and the press chamber is connected to a press pump 230.
The sludge with the water content of about 95% is modified and conditioned and then is sent into a filter chamber, the filtrate is discharged outside by penetrating filter cloth under the action of feeding pressure (filter pressing pressure is 1.0-3.0 MPa), the filter residue is intercepted by the filter cloth wrapped outside the filter chamber, the first filter pressing dehydration is realized, and the pressing time is about 20 minutes. In order to reduce the moisture content of the sludge, the utility model reduces the cavity depth of the filter chamber to 18-22mm, for example, 20mm can be adopted. After the first press filtration and dehydration are completed, high-pressure fluid is introduced into the press cavity through the press pump 230 to expand the press cavity, the filter cake is subjected to secondary press and deep dehydration, and the second press time is about 35 minutes.
Further, the membrane plate-frame filter press 210 is formed by sequentially extruding and arranging a plurality of box-type filter plates and membrane filter plates, wherein a squeezing cavity is formed in each membrane filter plate, and optionally, the plurality of filter plates are connected through chains, and after the filter pressing is finished, the filter plates are pulled by the chains and pulled by an oil cylinder and a reducing motor for two times respectively. The connection mode of the filter plate and the chain is realized by adopting a conventional structure. Furthermore, a vibrating mechanism can be arranged on the diaphragm plate-and-frame filter press 210, and the filter plate is vibrated by the vibrating mechanism after the filter plate is pulled open, so that the filter cake in the filter cavity can be fully separated.
In practical application, the dehydration period of 1 batch of sludge is about 60 minutes, and the water content of sludge is reduced to below 60% under the premise of adopting biological enzyme agents without lime, thereby being efficient and rapid.
Further, the sludge conditioning unit further includes an inorganic flocculant adding unit 130, and the inorganic flocculant adding unit 130 is used to add an inorganic flocculant into the conditioning tank 110. Wherein the inorganic flocculant is polyaluminum chloride or polyaluminum ferric chloride.
The sludge dewatering treatment system provided by the utility model further comprises a sludge collecting unit 300, wherein the sludge collecting unit 300 is used for collecting sludge discharged by the filter pressing dewatering unit 200. Typically, a sludge collection hopper is provided below the filter plates of the membrane frame filter press 210.
The sludge dewatering treatment system provided by the utility model has the advantages that the sludge formed by modifying and conditioning sludge through the biological enzyme agent and press-filtering is good in loosening effect and solubility, the filter cloth is not easy to adhere, the sludge recycling is facilitated, and the filter cloth has a longer service cycle.
In one specific application example, the sludge dewatering treatment system provided by the utility model is applied to municipal sludge dewatering treatment, and the mixing modification conditioning time is 3-5 minutes after the biological enzyme agent is added, so that other chemical products such as ferric salt, chloride salt, hydrogen peroxide, PM, PAC, lime and the like are not needed to be added; the water content of municipal sludge is 99% -92%, and the filtration pressure of the diaphragm plate-and-frame filter press is not more than 3.0MPa. In this application example, the ratio of the amount of the bio-enzyme chemical to be added is small, and usually about 0.2kg of the bio-enzyme chemical is only required to be added to 1 ton of the anhydrous sludge. After the biological enzyme promoter conditioning and the plate-and-frame filter press filtering treatment, the water content of the sludge is reduced to below 60%, the water content of the sludge is low, the total amount of the sludge in a single batch is reduced by 1 half, the daily batch sludge treatment capacity is increased by 3-4 times, and the daily treatment increment is compared with that of a filter press of the same type. In addition, the filter cake after solid-liquid separation of the filter press has good loosening effect and solubility, is not easy to adhere to the filter cloth, ensures that the filter cloth has longer service cycle, and is beneficial to recycling of sludge.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (6)
1. The sludge dewatering treatment system is characterized by comprising a sludge conditioning unit and a filter pressing dewatering unit which are sequentially connected, wherein the sludge conditioning unit comprises a conditioning tank, the conditioning tank is connected with a biological enzyme medicament adding unit, the biological enzyme medicament adding unit is used for adding biological enzyme medicaments into the conditioning tank, sludge in the conditioning tank and the biological enzyme medicaments are stirred and mixed to modify and condition the sludge, and the modified sludge is sent to the filter pressing dewatering unit to be dewatered, so that solid-liquid separation of sludge and water is realized.
2. The sludge dewatering treatment system according to claim 1, wherein the filter press dewatering unit employs a membrane plate and frame filter press.
3. The sludge dewatering treatment system according to claim 2, wherein filter chambers and pressing chambers are alternately arranged in the diaphragm plate-and-frame filter press, and the depth of the filter chambers is 18-22mm; the filter chamber is connected with the conditioning tank through the feed pump, and the squeezing cavity is connected with the squeezing pump.
4. The sludge dewatering treatment system of claim 1, wherein the sludge conditioning unit further comprises an inorganic flocculant addition unit for adding an inorganic flocculant into the conditioning tank.
5. The sludge dewatering treatment system according to claim 4, wherein the inorganic flocculant is polyaluminum chloride or polyaluminum ferric chloride.
6. The sludge dewatering treatment system of claim 1, further comprising a sludge collection unit for collecting sludge discharged from the press dewatering unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322667516.9U CN220845888U (en) | 2023-09-28 | 2023-09-28 | Sludge dewatering treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322667516.9U CN220845888U (en) | 2023-09-28 | 2023-09-28 | Sludge dewatering treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220845888U true CN220845888U (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322667516.9U Active CN220845888U (en) | 2023-09-28 | 2023-09-28 | Sludge dewatering treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220845888U (en) |
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- 2023-09-28 CN CN202322667516.9U patent/CN220845888U/en active Active
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