CN217077288U - Mobile workstation for harmless treatment of sewage and sludge of urban septic tank - Google Patents
Mobile workstation for harmless treatment of sewage and sludge of urban septic tank Download PDFInfo
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- CN217077288U CN217077288U CN202220205252.8U CN202220205252U CN217077288U CN 217077288 U CN217077288 U CN 217077288U CN 202220205252 U CN202220205252 U CN 202220205252U CN 217077288 U CN217077288 U CN 217077288U
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Abstract
The application belongs to the technical field of environmental protection equipment and environmental protection processes, and particularly relates to a mobile workstation for harmless treatment of sewage and sludge of an urban septic tank. The device comprises an A-level biological pond, an O-level biological pond, a sedimentation pond and a clean water pond which are sequentially connected in a process manner. The A-level biological tank is used for hydrolyzing and acidifying septic tank sewage and sludge, the O-level biological tank is used for performing aerobic bacteria decomposition on the septic tank sewage and sludge subjected to hydrolysis and acidification treatment in the A-level biological tank, the sedimentation tank is used for precipitating the septic tank sewage and sludge subjected to decomposition in the O-level biological tank to form sludge and sedimentation tank supernatant, and the clean water tank is used for storing the sedimentation tank supernatant from the sedimentation tank. The movable workstation for harmless treatment of sewage and sludge in the urban septic tank not only can flexibly adapt to various sewage-removing and pollution-treating applications in social practice, but also has remarkable economic, social and environmental benefits.
Description
Technical Field
The application belongs to the technical field of environmental protection equipment and environmental protection processes, and particularly relates to a mobile workstation for harmless treatment of sewage and sludge of an urban septic tank.
Background
In recent years, with the construction of municipal sewage treatment plants, the popularization of drainage networks and the widespread use of three-grid septic tanks in cities, a large amount of municipal excrement mainly comes from excrement slag sludge (hereinafter referred to as excrement) trapped by the septic tanks. The excrement is an important agricultural fertilizer in rural areas, along with the use of a large amount of chemical fertilizers, the sanitary standard is continuously improved, and the effective nutrient components of the excrement fertilizer are reduced. The agricultural use amount of excrement is also shrinking day by day due to the increase of farmland cost and the like, and how to treat and consume the excrement becomes a social concern. Just how does urban feces need to be treated? How can one achieve the effects of protecting the environment, saving resources and ensuring harmonious coexistence of people and nature? This problem has become a problem that is urgently desired to be solved and avoided in China and even all over the world.
At present, the sewage in the septic tank is pumped up and is pulled to a designated place to be poured off by mainly adopting a traditional excrement suction vehicle in various large and medium cities. The traditional dung suction truck has the following technical problems:
1. the traditional dung suction truck adopts simple vacuum pumping, and the cleaning of the sewage is discontinuous;
2. the power of the traditional dung suction truck completely depends on the automobile, and the dung suction truck cannot work if the automobile breaks down;
the treatment discontinuity of the traditional dung suction truck determines that the transportation time is far longer than the extraction and discharge time in the process of cleaning;
3. the construction of the traditional dung suction truck is not standard, and a manufacturer does not have any technical training, so that the traditional dung suction truck belongs to the nature of a touring team.
4. The transportation performance of the fecal collecting truck determines the cost factor, so the fecal collecting truck is difficult to treat in place, bad air which is discharged randomly is easy to form, the load of municipal pipe networks and sewage treatment plants is increased, secondary pollution is formed, and the urban environment is seriously polluted.
5. The integral dung suction truck has great noise and great odor in the operation process, and influences the normal life of surrounding residents;
6. the traditional dung suction truck, the sewage suction truck and the dredging truck have single functions and less selectivity, different trucks need to be replaced according to different requirements, and even if the traditional dung suction truck, the dredging truck and the dredging truck are individually refitted to be used for multiple purposes, the effect is not obvious and the dung suction truck is primary and secondary.
7. After the sewage is extracted by the conventional dung suction truck, the extracted sewage is directly discharged, so that the environment is not protected, and a large amount of excrement can not be recycled after being used up.
8. The oil cost of the traditional dung suction truck is one of the most important costs, corresponding transportation cost is accumulated when one vehicle is pumped, and the profit margin is smaller because the time consumed in the transportation process reduces the actual pumping quantity.
SUMMERY OF THE UTILITY MODEL
In view of this, this application provides city septic tank sewage mud innocent treatment portable workstation to solve the technical problem that exists among the prior art.
The solution provided by the application for solving the technical problem is as follows:
the utility model provides a portable workstation of city septic tank sewage mud innocent treatment which characterized in that: the device comprises an A-level biological pond, an O-level biological pond, a sedimentation pond and a clean water pond, wherein the A-level biological pond, the O-level biological pond, the sedimentation pond and the clean water pond are sequentially connected in a process manner; the A-level biological tank is used for hydrolyzing and acidifying septic tank sewage and sludge, the O-level biological tank is used for performing aerobic bacteria decomposition on the septic tank sewage and sludge subjected to hydrolysis and acidification treatment in the A-level biological tank, the sedimentation tank is used for precipitating the septic tank sewage and sludge subjected to decomposition in the O-level biological tank to form sludge and sedimentation tank supernatant, and the clean water tank is used for storing the sedimentation tank supernatant from the sedimentation tank.
Preferably, the mobile workstation for harmless treatment of sewage and sludge in the urban septic tank further comprises a concentration tank, wherein the concentration tank is used for performing concentration, sedimentation and oxidation treatment on the sludge generated by the sedimentation tank to form concentrated sludge and concentrated tank supernatant, and the concentrated tank supernatant is returned to the class A biological tank.
Preferably, the O-grade biological pond comprises an aeration system, an aeration fan and a plurality of aerators, wherein the aeration system comprises a plurality of aeration pipelines, the aerators are arranged on the aeration pipelines, and the aeration fan is used for forming an air source of the aeration system.
Preferably, the sedimentation tank comprises an effluent weir for forming supernatant of the sedimentation tank, a conical sedimentation zone for forming sludge, and a sludge gas stripping device for delivering the sludge formed in the conical sedimentation zone to the thickening tank.
Preferably, the concentration tank comprises a reflux device and a sludge aeration device, wherein the sludge aeration device is used for oxidizing the sludge to reduce the total amount of the sludge and simultaneously preventing the sludge from generating methane through anaerobic digestion; the reflux device is used for overflowing the supernatant of the concentration tank to the A-level biological tank.
Preferably, the mobile workstation for harmless treatment of sewage and sludge in the urban septic tank further comprises a filtering device for filtering supernatant liquid in the sedimentation tank, and the filtering device comprises a quartz sand filter and an activated carbon filter.
Preferably, the mobile workstation for harmless treatment of sewage and sludge of the urban septic tank further comprises an electric control system, and the electric control system is used for realizing the system control function of the mobile workstation for harmless treatment of sewage and sludge of the urban septic tank.
Preferably, the mobile workstation for harmless treatment of sewage and sludge in the urban septic tank further comprises an integrated main box, wherein the A-level biological tank, the O-level biological tank, the sedimentation tank and the clean water tank are all arranged in the integrated main box.
Preferably, the mobile workstation for harmless treatment of sewage sludge of the urban septic tank also comprises a grating tank, and the grating tank is used for removing large-particle suspended substances and floating impurities in the sewage sludge of the septic tank.
Preferably, the mobile workstation for harmless treatment of sewage and sludge in the urban septic tank further comprises an adjusting tank, and the adjusting tank is used for keeping the water quality and water quantity entering the A-level biological tank stable.
The beneficial technical effects are as follows:
the application provides a portable workstation of municipal septic tank sewage mud innocent treatment through adopting integration sewage treatment device, not only can adapt to various clean-up in the social practice and treat dirty application in a flexible way, still has the operation continuous, power is self-supporting, work efficiency is high, degree of automation is high, economic performance is good, the security performance is high and investment is low, technical advantage such as noise is little.
The technical solutions and technical effects of the present application will be described in detail below with reference to the drawings and the detailed description of the present application.
Drawings
FIG. 1: a mobile workstation for harmless treatment of sewage and sludge in an urban septic tank.
Detailed Description
The technical principle is as follows: the domestic sewage contains more organic impurities, CODcr and BOD5 are both high, and the BOD5/CODcr value is more than 0.4, so the biochemical performance is good. Therefore, a process treatment flow mainly based on the biochemical treatment is adopted, and the biochemical treatment adopts integrated domestic sewage treatment equipment as a stable process technical index in consideration of large sewage quantity. Before entering the biochemical device, floating and large-particle suspended impurities in the domestic sewage are removed in a pretreatment stage (a grating tank) as much as possible and then enter a regulating tank so as to prevent the sewage lift pump from being adversely affected. After sewage enters the integrated domestic sewage treatment equipment and is subjected to hydrolytic acidification, contact oxidation, precipitation and filtration, the effluent reaches the standard and is discharged into a municipal sewer. The sludge is concentrated, settled and digested in the concentration tank, the supernatant liquid flows back to the regulating tank to be reprocessed together with the original wastewater, and the concentrated sludge is pumped by a dung truck and transported outwards.
Referring to fig. 1, the mobile workstation for harmless treatment of sewage and sludge in an urban septic tank adopts integrated domestic sewage treatment equipment (part of a chain line in the drawing in fig. 1), wherein the integrated domestic sewage treatment equipment comprises an A-level biological tank, an O-level biological tank, a sedimentation tank and a clean water tank, and the A-level biological tank, the O-level biological tank, the sedimentation tank and the clean water tank are sequentially connected in a process manner; the A-level biological tank is used for hydrolyzing and acidifying septic tank sewage and sludge, the O-level biological tank is used for performing aerobic bacteria decomposition on the septic tank sewage and sludge subjected to hydrolysis and acidification treatment in the A-level biological tank, the sedimentation tank is used for precipitating the septic tank sewage and sludge subjected to decomposition in the O-level biological tank to form sludge and sedimentation tank supernatant, and the clean water tank is used for storing the sedimentation tank supernatant from the sedimentation tank.
The combined filler is arranged in the A-level biological tank, and under the action of hydrolytic acidification microorganisms, macromolecular organic impurities are hydrolyzed and acidified into micromolecular substances in the wastewater in the A-level biological tank, so that the decomposition of aerobic bacteria in the contact oxidation tank is facilitated.
The O-grade biological pond is provided with an aeration system, an aeration fan and a plurality of aerators, wherein the aeration system comprises a plurality of aeration pipelines, the aerators are arranged on the aeration pipelines and positioned at the lower part of the O-grade biological pond, and the aeration fan is used for forming an air source of the aeration system. The O-level biological tank is internally provided with a filler for aerobic bacteria decomposition of the septic tank sewage sludge after hydrolysis acidification treatment of the A-level biological tank.
The sedimentation tank comprises an effluent weir, a conical sedimentation zone and a sludge gas stripping device, wherein the effluent weir is used for forming supernatant of the sedimentation tank, the conical sedimentation zone is used for forming sludge, and the sludge gas stripping device is used for conveying the sludge formed in the conical sedimentation zone to the concentration tank. The air source of the sludge air device is provided by a fan. The effluent weir preferably adopts an adjustable effluent weir to adjust the effluent water level. The supernatant in the sedimentation tank directly enters a clean water tank or enters the clean water tank after being filtered by a filtering device. The filter means preferably comprises a quartz sand filter and an activated carbon filter. According to the specific situation of the site, a disinfection tank procedure can be additionally arranged behind the clean water tank, and the clean water is discharged after further sterilization and disinfection treatment by means of adding disinfectants and the like.
The A-level biological tank, the O-level biological tank, the sedimentation tank and the clean water tank are packaged into integrated domestic sewage treatment equipment through an integrated main box.
The sewage sludge to be treated firstly passes through the grid tank to remove floating and large-particle suspended impurities in the domestic sewage, then enters the regulating tank and is conveyed to the integrated domestic sewage treatment equipment through the submersible sewage pump, and the regulating tank is simultaneously used for keeping the stability of the water quality and the water quantity entering the A-level biological tank.
The concentration tank is used for carrying out concentration, sedimentation and oxidation treatment on the sludge generated by the sedimentation tank to form concentrated sludge and concentrated tank supernatant, and the concentrated tank supernatant is returned to the A-grade biological tank. The concentration tank is provided with a reflux device and a sludge aeration device, and the sludge aeration device is used for oxidizing the sludge to reduce the total amount of the sludge and simultaneously preventing the sludge from generating methane through anaerobic digestion; the reflux device is used for overflowing the supernatant of the concentration tank to the A-level biological tank.
The mobile workstation for harmless treatment of sewage and sludge of the urban septic tank further comprises an electric control system, and the electric control system is used for realizing the system control function of the mobile workstation for harmless treatment of sewage and sludge of the urban septic tank.
The technical effects are as follows: table 1 and table 2 are water inlet and outlet indexes of the technical scheme disclosed in the present application in an actual engineering project, respectively.
Table 1: water inlet index of sewage station in certain community
| Serial number | Item | Numerical value |
| 1 | CODcr | 400mg/L |
| 2 | BOD5 | 200mg/L |
| 3 | Ammonia nitrogen | 10mg/L |
| 4 | SS | 50mg/L |
| 5 | pH | 6～9 |
Table 2: effluent index of sewage station in certain community
| Serial number | Item | Numerical value |
| 1 | CODcr | ≤60mg/L |
| 2 | Suspended matter | ≤10mg/L |
| 3 | pH | 6～9 |
| 4 | Chroma (dilution multiple) | 30 |
| 5 | Fecal coliform population | 103/L |
From data comparison, the solution disclosed by the application can obtain more ideal technical indexes in practice. Simultaneously, the portable workstation of municipal septic tank sewage mud innocent treatment that this application provided still has following various beneficial effect:
1. and continuous operation is carried out continuously. The sewage suction truck of the traditional dung suction truck adopts a simple vacuum suction mode, and the sewage and sludge which are sucked need to be conveyed to a treatment system, so that the cleaning of the sewage is intermittent; the mobile workstation provided by the application integrates physical and/or chemical treatment equipment besides vacuum extraction, so that the extracted substance is subjected to solid-liquid-gas three-state separation and can be discharged on site.
2. Can realize self-supply of power. The power of the traditional dung suction truck completely depends on the automobile, and the dung suction truck cannot work if the automobile breaks down; the application provides a portable workstation and car's dependence is very weak, and power and car are irrelevant, except directly inserting the electricity, can also take generating set or drive with the battery certainly, and convenient and practical is more cost-effective than the oil-fired.
3. Time benefit. The handling discontinuity of the traditional dung suction truck determines that the transportation time in the sewage disposal process is far longer than the extraction and discharge time per se; the mobile workstation provided by the application is just opposite, the dirt cleaning process is continuous, the dirt is discharged along with the pumping and the processing, 3/4 time can be saved in the lowest energy of each processing vehicle, and the working efficiency can be improved by at least 3 times and 4 times. In long-time work, one device can replace the workload of 5-8 traditional dung suction trucks.
4. And (4) safety benefits. The mobile workstation machine is simple to operate, the construction process and the operation management are standardized, and a great number of potential safety hazards are avoided to a great extent.
5. And (5) treatment effect. The transportation performance of the traditional dung suction truck determines a cost factor, so that the dung suction truck is difficult to treat in place, bad air which is discharged randomly is easy to form, the load of a municipal pipe network and a sewage treatment plant is increased, secondary pollution is formed, and the urban environment is seriously polluted. The application provides a portable workstation can satisfy customer's demand by the biggest. By adopting the vehicle-mounted on-site treatment mode, the secondary pollution in the process of transporting the liquid dung of the manure residues is reduced, the resource utilization is realized, the liquid dung flows back to the septic tank after being disinfected, the discharge of organic pollutants such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and the like is greatly reduced, and the load of a sewage pipe network is reduced.
6. And (4) environmental benefits. The traditional dung suction truck has great noise and large odor in the operation process, and influences the normal life of surrounding residents; the application provides a portable workstation handles sound and taste, receives high-grade district especially, the favor of big hotel. And the effects of retreatment of the liquid dung, extraction of organic fertilizer raw materials and sewage evolution are obviously superior to those of the traditional excrement suction and sewage suction truck.
7. And the benefit is expanded. The traditional dung suction truck, the sewage suction truck and the dredging truck have single function, less selectivity and unobvious effect. The application provides a portable workstation has integrated soil pick-up, rubbish separation, water treatment, each item function such as, and the flush is gone on. Meanwhile, the method has various choices and different levels of processing equipment, and meets different requirements of various mechanisms in large, medium and small cities.
8. The waste recycling benefit. After the sewage is extracted by the conventional dung suction truck, the extracted sewage is directly discharged, so that the environment is not protected, and a large amount of excrement can not be recycled after being used up. The application provides a portable workstation not only can come out to rubbish ability flash separation in the septic tank, can also draw alone excrement and urine in the excrement and urine, can regard as the fertilizer through appropriate fermentation, can directly be used for the green excrement and urine in city, and economy is practical again.
9. The profit margin. The oil cost of the traditional dung suction truck is one of the most important costs, corresponding transportation cost is accumulated when one vehicle is pumped, and the profit margin is smaller because the time consumed in the transportation process reduces the actual pumping quantity. The application provides a portable workstation for cost greatly increased several times because efficient work, zero transportation expense.
10. The application provides a portable workstation except fixing and using in the fecal treatment factory, can also shuttle through in the street alley in city, and the most main advantage of this kind of mobility is exactly, and convenience, input cost are low, take up an area of fewly. For example, the area of a feces treatment plant with 300 tons of daily treatment capacity is more than 20 mu, and the investment cost is billion, while the mobile workstation provided by the application has 300 tons of daily treatment capacity and only needs 4 standard-size devices (the treatment capacity per hour is 10-15 cubic), and the total price of the 4 devices is about 600 ten thousand. Directly entering the subsequent organic fertilizer processing procedure.
The application provides a portable workstation has solved the fecal treatment problem from the source for city septic tank is clearly drawn and is obtained orderly management, has really realized becoming the excrement for the treasured.
While the technical solutions and technical effects of the present application have been described in detail with reference to the drawings and the specific embodiments of the present application, it should be noted that the specific embodiments disclosed in the specification are only preferred embodiments of the present application, and other embodiments may be developed by those skilled in the art based on the specific embodiments; any simple modifications and equivalents which do not depart from the innovative concepts of the present application are intended to be included within the scope of the present patent.
Claims (7)
1. Municipal septic tank sewage mud innocent treatment portable workstation, its characterized in that:
the device comprises an A-level biological pond, an O-level biological pond, a sedimentation pond and a clean water pond, wherein the A-level biological pond, the O-level biological pond, the sedimentation pond and the clean water pond are sequentially connected in a process manner;
the A-stage biological tank is used for hydrolyzing and acidifying septic tank sewage sludge, the O-stage biological tank is used for performing aerobic bacteria decomposition on the septic tank sewage sludge subjected to hydrolysis and acidification treatment in the A-stage biological tank, the sedimentation tank is used for settling the septic tank sewage sludge subjected to decomposition in the O-stage biological tank to form sludge and sedimentation tank supernatant, and the clean water tank is used for storing sedimentation tank supernatant from the sedimentation tank;
the sedimentation tank comprises an effluent weir, a conical sedimentation zone and a sludge gas stripping device, wherein the effluent weir is used for forming supernatant of the sedimentation tank, the conical sedimentation zone is used for forming sludge, and the sludge gas stripping device is used for conveying the sludge formed in the conical sedimentation zone to the concentration tank;
the mobile workstation for harmless treatment of sewage and sludge of the urban septic tank also comprises a concentration tank, wherein the concentration tank is used for carrying out concentration, sedimentation and oxidation treatment on the sludge generated by the sedimentation tank to form concentrated sludge and concentrated tank supernatant, and the concentrated tank supernatant returns to the A-level biological tank;
the concentration tank comprises a reflux device and a sludge aeration device, wherein the sludge aeration device is used for oxidizing sludge to reduce the total amount of the sludge and simultaneously preventing the sludge from generating methane through anaerobic digestion; the reflux device is used for overflowing the supernatant of the concentration tank to the A-level biological tank.
2. The mobile workstation for harmless treatment of sewage and sludge in a municipal septic tank according to claim 1, characterized in that:
the O-grade biological pond comprises an aeration system, an aeration fan and a plurality of aerators, wherein the aeration system comprises a plurality of aeration pipelines, the aerators are arranged on the aeration pipelines, and the aeration fan is used for forming an air source of the aeration system.
3. The mobile workstation for harmless treatment of sewage and sludge in a municipal septic tank according to claim 1, characterized in that:
this portable workstation of municipal septic tank sewage mud innocent treatment still includes the filter equipment who is used for filtering the sedimentation tank supernatant, filter equipment includes quartz sand filter and active carbon filter.
4. The mobile workstation for harmless treatment of sewage and sludge in a municipal septic tank according to claim 1, characterized in that:
this portable workstation of municipal septic tank sewage mud innocent treatment still includes electrical system, electrical system is used for realizing the system control function of portable workstation of municipal septic tank sewage mud innocent treatment.
5. The mobile workstation for harmless treatment of sewage and sludge in a municipal septic tank according to claim 1, characterized in that:
this portable workstation of municipal septic tank sewage mud innocent treatment still includes integration main part case, biological pond of A level, biological pond of O level, sedimentation tank and clean water basin all set up in the integration main part incasement.
6. The mobile workstation for harmless treatment of sewage and sludge in a municipal septic tank according to claim 1, characterized in that:
the mobile workstation for harmless treatment of sewage and sludge of the urban septic tank further comprises a grating tank, wherein the grating tank is used for removing large-particle suspended substances and floating impurities in sewage and sludge of the septic tank.
7. The mobile workstation for harmless treatment of sewage and sludge in a municipal septic tank according to claim 1, characterized in that:
the mobile workstation for harmless treatment of sewage and sludge of the urban septic tank further comprises an adjusting tank, wherein the adjusting tank is used for keeping the water quality and the water quantity entering the A-level biological tank stable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220205252.8U CN217077288U (en) | 2022-01-25 | 2022-01-25 | Mobile workstation for harmless treatment of sewage and sludge of urban septic tank |
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|---|---|---|---|
| CN202220205252.8U CN217077288U (en) | 2022-01-25 | 2022-01-25 | Mobile workstation for harmless treatment of sewage and sludge of urban septic tank |
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| CN217077288U true CN217077288U (en) | 2022-07-29 |
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| CN202220205252.8U Active CN217077288U (en) | 2022-01-25 | 2022-01-25 | Mobile workstation for harmless treatment of sewage and sludge of urban septic tank |
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