CN213623781U - Low-energy-consumption sludge reduction harmless treatment device - Google Patents
Low-energy-consumption sludge reduction harmless treatment device Download PDFInfo
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- CN213623781U CN213623781U CN202022706395.0U CN202022706395U CN213623781U CN 213623781 U CN213623781 U CN 213623781U CN 202022706395 U CN202022706395 U CN 202022706395U CN 213623781 U CN213623781 U CN 213623781U
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 18
- 230000009467 reduction Effects 0.000 title claims abstract description 16
- 239000006228 supernatant Substances 0.000 claims abstract description 32
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 26
- 239000002101 nanobubble Substances 0.000 claims abstract description 23
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 17
- 230000001954 sterilising effect Effects 0.000 claims abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 10
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- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 239000002912 waste gas Substances 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 4
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- 230000000694 effects Effects 0.000 abstract description 6
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a low energy consumption sludge reduction harmless treatment device, which comprises a reactor; a supernatant storage area, a sterilization wall-breaking area and a concentration area are sequentially arranged in the reactor from top to bottom; a sludge pipeline is arranged above the supernatant storage area and is connected with a sludge delivery pump, and a supernatant pipeline is arranged on one side of the supernatant storage area and is connected with a supernatant reflux pump; electrode plates are symmetrically arranged on two sides of the sterilization wall breaking area, and a plurality of wire mesh catalysts are uniformly distributed in the middle of the electrode plates; a precise aeration pipeline is arranged between the sterilization wall-breaking area and the concentration area; an ozone micro-nano bubble generator is connected outside the precise aeration pipeline; one side of the concentration zone is provided with a drying zone; a spiral shoveling plate type conveying belt is arranged in the drying area, and a sludge outlet is arranged at the outer end of the drying area. Compared with the prior art, the beneficial effects of the utility model are that: can realize continuous automatic operation, has good sludge reduction effect, small system occupation area, and has the devices with low operation energy consumption and good disinfection effect.
Description
Technical Field
The utility model relates to a sludge treatment field, concretely relates to low energy consumption mud minimizing innocent treatment device.
Background
Biological sewage treatment technologies represented by an activated sludge process are well established and are now widely used in municipal and industrial wastewater treatment. But one of its own major problems is the production of large amounts of excess sludge. The capital required by various sludge treatment and disposal methods is huge, the investment and the operating cost of the residual sludge treatment device account for about 25 to 65 percent of the investment and the operating cost of the whole sewage treatment plant, and the huge sludge disposal cost becomes a serious problem faced by the sewage treatment technology. At present, sewage treatment plants generally adopt landfill and composting methods to treat sludge, however, the two methods can cause the content of heavy metal in soil to exceed standard, and seriously threaten human living environment.
With the increasingly strict environmental protection requirements of our country and the enhancement of the environmental awareness of people, the sludge disposal problem is receiving more and more social attention, so that the development of sludge reduction and harmless treatment equipment specially designed for the characteristics of sludge is urgent.
Conventional treatment measures for sludge include landfilling, incineration, brick making, composting and the like. At present, most of refuse landfills aim at receiving municipal refuse, and continuously increased sludge is not received any more, and percolate generated by the sludge seriously pollutes the surrounding environment; in a garbage incineration plant or a professional sludge incineration plant, the sludge treatment capacity is limited, the treatment of municipal sludge is mainly used, and industrial sludge is not generally treated; the number of brick making plants is less and less, and the amount of sludge which can be treated is very limited; the conventional sludge composting process has large odor and the product is in a problem. With the implementation of a new 'solid waste pollution environment prevention and control law', non-waste cities are actively established all over the country, industrial organic sludge is used as an important component of industrial solid waste, and the way of coming out of the cities is bound to become a problem needing to be mainly solved. Therefore, it is highly desirable to find an additional way for sludge.
The micro-nano bubble technology is one of the novel physical technologies which are developed most rapidly in the last 30 years, can generate a large amount of micro-nano bubbles by utilizing principles such as rotational flow, shearing, spraying and the like, has the characteristics of long retention time and high internal pressure in water, and can be effectively applied to the fields of mineral flotation, biochemical system aeration, industrialized high-density culture, farmland irrigation, medical disinfection, wastewater treatment, waste gas treatment and the like by matching with ozone, pure oxygen and the like.
Chinese patent publication No.: CN1765771A, published: 2006.05.03 discloses a process for realizing sludge reduction by using two-stage bioreactor, which comprises two bioreactors, namely a sequencing batch aerobic granular sludge bioreactor and a membrane bioreactor, wherein sewage is treated in the sequencing batch aerobic granular sludge bioreactor in the first stage, the high-efficiency removal of organic matters is realized by the culture of the aerobic granular sludge, a small amount of residual sludge is generated in the process, and meanwhile, dispersed bacteria washed along with the effluent are used as nutrients of primary and secondary animals in the second stage; in the second stage, sewage is further treated in the membrane bioreactor, so that the organic matters in the first stage are further degraded, the quality of effluent water is improved, and meanwhile, a large amount of predatory bacteria of primary and secondary animals are used for reducing the excess sludge.
Chinese patent publication No.: CN1765780A, published: 2006.05.03, discloses a method for reducing sludge by treating sludge with ultrasonic waves, comprising the following steps: the biochemical unit is arranged in the biochemical pool, and effectively removes organic pollutants through microorganisms contained in sewage to convert organic compounds into inorganic micromolecular substances; the sedimentation unit is used for leading the wastewater after biochemical treatment to enter a secondary sedimentation tank for sedimentation treatment to separate mud from water and concentrate sludge; the sludge anaerobic digestion unit is used for inputting the sludge from the secondary sedimentation tank into a sealed tank, continuously breeding and domesticating anaerobic bacteria and facultative bacteria under a closed anoxic state and carrying out anaerobic digestion; the ultrasonic treatment unit is used for treating the sludge treated by the digestion unit by adopting sound waves with an ultrasonic wave band of 20 kHz-100 kHz; the sludge dewatering unit adopts centrifugal dewatering to carry out solid-liquid separation. The method greatly improves the methane generation amount, enhances the degradation capability to organic matters, improves the sludge dewatering capability, destroys and decomposes filamentous bacteria in the sludge, and reduces the residual sludge of the whole biochemical treatment system.
Chinese patent publication No.: CN107324626A, published: 2017.11.07, discloses a sludge reduction reaction system and a sludge treatment method using ozone, which comprises a reaction tank, an ejector connected with the reaction tank, an ozone generator for providing ozone to the ejector and a nozzle communicated with the ejector; the ejector is connected with the sprayer through a booster pump, a mixing tank for receiving the ejected materials is arranged below the sprayer nozzle, and a sludge outlet of the mixing tank is communicated with the reaction tank to form a circulating channel. The method has the advantages of simple system structure, small occupied area, high reaction efficiency, full utilization of ozone and avoidance of the use of an ozone decomposer. The sludge reduction effect is obvious, the sludge can be reduced by more than 50-90%, the compatibility with the existing sludge process is good, and the sludge reduction method can be widely applied to sludge reduction of sewage treatment plants.
The treatment processes described in the above patents one and two mainly focus on the improvement of the biochemical treatment section, and the cooperation with aerobic granular sludge or ultrasonic waves can improve the biochemical treatment effect, reduce the sludge generation, or improve the biogas generation amount, and obtain better economic benefits, but the process steps are complicated, the equipment is complex, and the cost is high; patent three processing technology adopted the combination of jet nozzle and ozone, formed airtight space, improved the utilization efficiency of ozone, avoided the use of ozone decomposer, but the technology is more single, leans on ozone alone, and the operation energy consumption is high, invests in height, and the operation maintenance lacks the flexibility.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low energy consumption sludge decrement innocent treatment device, its characteristics are overcome and are thrown in traditional sludge treatment process and throw a large amount of medicaments and produce secondary pollution, ozone operation energy consumption is higher, sludge drying means is single, need secondary disinfection after handling, defects such as organic matter can't effectively be retrieved, and provide one kind and mainly use micro-nano bubble technique as leading, assist electrochemistry, microwave, technologies such as infrared ray can realize serialization automatic operation, sludge decrement is effectual, the system takes up an area of for a short time, it is low to have the operation energy consumption simultaneously again, the effectual device of disinfection.
In order to achieve the above object, the utility model provides a following technical scheme: a low-energy consumption sludge reduction harmless treatment device comprises a reactor; a supernatant storage area, a sterilization wall breaking area and a concentration area are sequentially arranged in the reactor from top to bottom; a sludge pipeline is arranged above the supernatant storage area and connected with a sludge delivery pump, and a supernatant pipeline is arranged on one side of the supernatant storage area and connected with a supernatant reflux pump; electrode plates are symmetrically arranged on two sides of the sterilization wall breaking area, and a plurality of wire mesh catalysts are uniformly distributed in the middle of each electrode plate; a precise aeration pipeline is arranged between the sterilization wall-breaking area and the concentration area; the precise aeration pipeline is externally connected with an ozone micro-nano bubble generator; a drying area is arranged on one side of the concentration area; a spiral shoveling plate type conveying belt is arranged in the drying area, and a sludge outlet is formed in the outer end of the drying area.
As optimization, an electromagnetic wave generator is arranged on the outer side of the drying area; the electromagnetic wave generator is a microwave generator or an infrared generator.
As optimization, an exhaust gas treatment unit is arranged outside the reactor; the air inlet end of the waste gas treatment unit is respectively communicated with the top ends of the supernatant storage area and the drying area through a waste gas collecting pipeline; and a waste gas pipeline is arranged outside the gas outlet end of the waste gas treatment unit and is connected with a fan.
And optimally, a bypass is arranged between the fan and the air inlet end of the waste gas treatment unit, and a switching valve is arranged on the bypass.
As optimization, the particle size of bubbles generated by the ozone micro-nano bubble generator is 0.01-100 mu m, and the ozone concentration is 0.5-100 mg/L.
As optimization, the system also comprises a PLC automatic control unit; the PLC automatic control unit is respectively connected with the sludge delivery pump, the supernatant reflux pump, the electrode plate, the ozone micro-nano bubble generator, the electromagnetic wave generator, the spiral shoveling plate type conveying belt, the switching valve and the fan.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the technology of micro-nano bubbles is adopted as a carrier for adding ozone, the utilization efficiency of the ozone is obviously improved, the operation energy consumption is reduced, and preferably, the bubble particle size of the micro-nano bubble generator adopted by the patent is in the range of 0.01-100 mu m, the ozone concentration is in the range of 0.5-100mg/L, and the reaction time is in the range of 1-60 min;
2. an electrochemical technology is selected to assist cell walls to break the walls, and a silk-screen catalyst is designed to improve the effect of electrochemical oxidation, and the current adopted by the patent is in the range of 10-1000A as the optimization;
3. organic matters after cell wall breaking are recycled and returned to a wastewater treatment system as high-quality carbon sources, so that resource recovery is realized, and the operating cost is saved;
4. the equipment is provided with a waste gas treatment unit and a bypass switching valve, and the change of a treatment flow can be flexibly realized according to the waste gas condition generated by different sludge properties so as to save the operating cost;
5. the equipment takes the micro-nano bubble technology as a core, so that the equipment is more compact and occupies less space;
6. a large amount of medicament is not required to be added, and the operation and maintenance are friendly;
7. the whole equipment can be built on a vehicle-mounted skid-mounted frame, the mobility is strong, and a plurality of garbage disposal projects can share one set of equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The system comprises a sludge delivery pump 01, a supernatant storage area 02, a sterilization wall breaking area 03, a concentration area 04, an ozone micro-nano bubble generator 05, a precision aeration pipeline 06, micro-nano bubbles 07, a silk-screen catalyst 08, an electrode plate 09, a drying area 10, a sludge outlet 11, an electromagnetic wave generator 12, a spiral shoveling plate type conveying belt 13, a waste gas collecting pipeline 14, a waste gas treatment unit 15, a fan 16, a supernatant reflux pump 17, a PLC automatic control unit 18, a waste gas pipeline 19, a sludge pipeline 20, a supernatant pipeline 21, a switching valve 22 and a bypass 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A low-energy consumption sludge reduction harmless treatment device comprises a reactor; a supernatant storage area 02, a sterilization wall breaking area 03 and a concentration area 04 are sequentially arranged in the reactor from top to bottom; a sludge pipeline 20 is arranged above the supernatant storage area 02 and connected with a sludge delivery pump 01, and a supernatant pipeline 21 is arranged on one side of the supernatant storage area 02 and connected with a supernatant reflux pump 17; electrode plates 09 are symmetrically arranged on two sides of the sterilization wall-breaking region 03, and a plurality of wire-mesh catalysts 08 are uniformly distributed in the middle of the electrode plates 09; a precise aeration pipeline 06 is arranged between the sterilization wall-breaking area 03 and the concentration area 04; the precise aeration pipeline 06 is externally connected with an ozone micro-nano bubble generator 05; a drying area 10 is arranged on one side of the concentration area 04; a spiral shoveling plate type conveying belt 13 is arranged in the drying area 10, and a sludge outlet 11 is arranged at the outer end of the drying area 10.
As optimization, an electromagnetic wave generator 12 is arranged outside the drying zone 10; the electromagnetic wave generator 12 is a microwave generator or an infrared generator.
As optimization, an exhaust gas treatment unit 15 is arranged outside the reactor; the gas inlet end of the waste gas treatment unit 15 is respectively communicated with the top ends of the supernatant storage area 02 and the drying area 10 through a waste gas collecting pipeline 14; and an exhaust gas pipeline 19 is arranged outside the air outlet end of the exhaust gas treatment unit 15 and is connected with a fan 16.
Preferably, a bypass 23 is provided between the blower 16 and the inlet end of the exhaust gas treatment unit 15, and a switching valve 22 is provided on the bypass 23.
As optimization, the particle size of bubbles generated by the ozone micro-nano bubble generator 05 is 0.01-100 mu m, and the ozone concentration is 0.5-100 mg/L.
As optimization, a PLC automatic control unit 18 is also included; the PLC automatic control unit 18 is respectively connected with a sludge delivery pump 01, a supernatant liquid reflux pump 17, an electrode plate 09, an ozone micro-nano bubble generator 05, an electromagnetic wave generator 12, a spiral shoveling plate type conveying belt 13, a switching valve 22 and a fan 16.
The working principle is as follows:
sludge to be treated enters the reactor through a sludge pipeline 20 by a sludge delivery pump 01, the sludge to be treated is fully combined and reacted with micro-nano bubbles 07 generated by an ozone micro-nano bubble generator 05 in a sterilization wall breaking area 03, cell walls in the sludge are broken under the action of the micro-nano bubbles 07, organic matters in the cells enter a supernatant storage area 02, and flow back to a biochemical unit of a wastewater treatment system through a supernatant pipeline 21 by a supernatant reflux pump 17, so that organic resource recovery is realized.
Meanwhile, under the action of the electrode plate 09 and the silk-screen catalyst 08, the effect of sterilizing and wall breaking of sludge cells is more remarkable, the wall-broken sludge falls into the concentration zone 04 and enters the drying zone 10 to realize further dehydration and drying, a spiral shoveling plate type conveying belt 13 is designed in the drying zone 10, a microwave generator or an infrared generator is designed outside the drying zone 10 to deeply dehydrate and dry the sludge, and finally the dried sludge is discharged from a sludge outlet 11.
Waste gas generated in the equipment enters the waste gas treatment unit 15 from the waste gas collecting pipeline 14 under the suction action of the fan 16 for treatment, and for sludge which does not need waste gas treatment, the waste gas is directly discharged into air or enters the original waste gas treatment unit by opening the switching valve 22 and utilizing the bypass 23, so that the running cost of the equipment can be reduced. The complete equipment realizes full-automatic operation under the control of the PLC automatic control unit 18.
Experimental example 1:
the sludge is taken from domestic sewage treatment stations in certain colleges and universities after preliminary dehydration through a plate-and-frame filter press, the water content is 81%, 20mg/L ozone micro-nano bubbles are adopted for treatment, the reaction time is 10min, the electrochemical oxidation of 100A current is matched, the wall breaking is carried out on the sludge, organic matters flow back to a front-end wastewater treatment biochemical unit, a sludge drying section is heated by far infrared rays, the water content of the sludge after treatment through the device is reduced to 32%, and the volume reduction of the sludge reaches 72%.
Experimental example 2:
the sludge is taken from a sewage treatment station of a pharmaceutical factory after preliminary dehydration through spiral folding, the water content is 78%, 50mg/L ozone micro-nano bubbles are adopted for treatment, the reaction time is 20min, the electrochemical oxidation of 300A current is matched, the wall breaking is carried out on the sludge, organic matters flow back to a front end wastewater treatment biochemical unit, a sludge drying section is heated by microwaves and far infrared rays in a double-frequency mode, the water content of the sludge after the treatment of the equipment is reduced to 28%, and the volume reduction of the sludge reaches 69.4%.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a low energy consumption mud minimizing innocent treatment device which characterized in that: comprises a reactor; a supernatant storage area (02), a sterilization wall breaking area (03) and a concentration area (04) are sequentially arranged in the reactor from top to bottom; a sludge pipeline (20) is arranged above the supernatant storage area (02) and is connected with a sludge delivery pump (01), and a supernatant pipeline (21) is arranged on one side of the supernatant storage area (02) and is connected with a supernatant reflux pump (17); electrode plates (09) are symmetrically arranged on two sides of the sterilization wall breaking region (03), and a plurality of screen catalysts (08) are uniformly distributed in the middle of the electrode plates (09); a precise aeration pipeline (06) is arranged between the sterilization wall-breaking area (03) and the concentration area (04); the precise aeration pipeline (06) is externally connected with an ozone micro-nano bubble generator (05); a drying area (10) is arranged on one side of the concentration area (04); a spiral shoveling plate type conveying belt (13) is arranged in the drying area (10), and a sludge outlet (11) is arranged at the outer end of the drying area (10).
2. The low-energy consumption sludge reduction and harmless treatment device according to claim 1, which is characterized in that: an electromagnetic wave generator (12) is arranged on the outer side of the drying area (10); the electromagnetic wave generator (12) is a microwave generator or an infrared generator.
3. The low-energy consumption sludge reduction and harmless treatment device according to claim 1, which is characterized in that: an exhaust gas treatment unit (15) is arranged outside the reactor; the air inlet end of the waste gas treatment unit (15) is respectively communicated with the top ends of the supernatant storage area (02) and the drying area (10) through a waste gas collecting pipeline (14); and a waste gas pipeline (19) is arranged outside the gas outlet end of the waste gas treatment unit (15) and is connected with a fan (16).
4. The low-energy consumption sludge reduction and harmless treatment device according to claim 3, characterized in that: a bypass (23) is arranged between the air inlet end of the fan (16) and the air inlet end of the waste gas treatment unit (15), and a switching valve (22) is arranged on the bypass (23).
5. The low-energy consumption sludge reduction and harmless treatment device according to claim 1, which is characterized in that: the particle size of bubbles generated by the ozone micro-nano bubble generator (05) is 0.01-100 mu m, and the ozone concentration is 0.5-100 mg/L.
6. The low-energy consumption sludge reduction and harmless treatment device according to claim 1, which is characterized in that: also comprises a PLC automatic control unit (18); the PLC automatic control unit (18) is respectively connected with a sludge delivery pump (01), a supernatant liquid reflux pump (17), an electrode plate (09), an ozone micro-nano bubble generator (05), an electromagnetic wave generator (12), a spiral shoveling plate type conveying belt (13), a switching valve (22) and a fan (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022706395.0U CN213623781U (en) | 2020-11-20 | 2020-11-20 | Low-energy-consumption sludge reduction harmless treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022706395.0U CN213623781U (en) | 2020-11-20 | 2020-11-20 | Low-energy-consumption sludge reduction harmless treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118239596A (en) * | 2024-05-28 | 2024-06-25 | 济南智泽德源环保科技有限公司 | Aerobic sludge rapid granulating equipment and treatment process thereof |
| CN119683830A (en) * | 2024-12-30 | 2025-03-25 | 广州市净水有限公司 | Electrochemical reinforced sludge cracking method and device |
-
2020
- 2020-11-20 CN CN202022706395.0U patent/CN213623781U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118239596A (en) * | 2024-05-28 | 2024-06-25 | 济南智泽德源环保科技有限公司 | Aerobic sludge rapid granulating equipment and treatment process thereof |
| CN119683830A (en) * | 2024-12-30 | 2025-03-25 | 广州市净水有限公司 | Electrochemical reinforced sludge cracking method and device |
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