CN211141756U - Portable garbage transfer station sewage treatment and recycling system - Google Patents
Portable garbage transfer station sewage treatment and recycling system Download PDFInfo
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- CN211141756U CN211141756U CN201922081016.0U CN201922081016U CN211141756U CN 211141756 U CN211141756 U CN 211141756U CN 201922081016 U CN201922081016 U CN 201922081016U CN 211141756 U CN211141756 U CN 211141756U
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Abstract
The application discloses portable rubbish transfer station sewage treatment and recycling system, sewage loop through following equipment processing: the sewage adjusting tank is used for storing sewage and stabilizing water quality; the neutralization, coagulation and stirring integrated device is connected with a dosing device; a mud-water separation device adopts a plate-and-frame filter press; the multi-phase air flotation device is connected with the dosing device and comprises a pressure air dissolving system, an air dissolving and releasing system and an air flotation separation system, the pressure air dissolving system comprises a multi-phase flow air dissolving water pump and an air water buffer tank, and the air dissolving and releasing system comprises a pressure regulating valve and an air dissolving water pipeline; the ozone oxidation tower is connected with an ozone generator; a cloth bag filter. The utility model discloses use the actual water condition of satisfying the rubbish transfer station as the purpose.
Description
Technical Field
The application relates to sewage treatment, in particular to a portable garbage transfer station sewage treatment and recycling system.
Background
The average production amount of the sewage of the domestic garbage transfer station is about 5.1 percent of the garbage amount, the sewage is weakly acidic, the PH change range is 3.0-6.5, the change ranges of SS and TP are 630-800000 mg/L and 8-260 mg/L respectively, the sewage has the characteristics of high season in summer and autumn and low season in winter and spring, BOD, COD and ammonia nitrogen respectively change in the ranges of 2250-35200 mg/L, 150-80000 mg/L and 70-1050 mg/L, the water quality indexes reach the maximum concentration in 9 months, and related researches show that the content of heavy metals in the sewage of the domestic garbage transfer station basically cannot exceed the maximum concentration specified by the water quality standard for discharging the sewage into town sewers.
The sewage that rubbish compression produced belongs to native landfill leachate, mostly produces the day, because stack and fermentation time are shorter, has obvious difference with the quality of water of the landfill leachate of landfill yard.
The prior treatment technology has the following defects: 1. the method adopts nanofiltration or reverse osmosis, has low recovery rate, high concentration of the produced concentrated water pollutants, large treatment difficulty, complex process, high treatment cost and low water utilization rate; 2. a large number of structures need to be built, the occupied area is large, and the investment of civil engineering is large; 3. when the biochemical abnormality occurs, the effluent is unstable, the membrane fouling is serious, the membrane consumption is high, and the operation cost is high; 4. the building and the structure are scattered, so that the later expansion is inconvenient; 5. the conventional anaerobic and aerobic biological treatment technology has the advantages of long sewage retention time, large equipment quantity, high required automation degree, complex operation and high requirement on operation and use personnel.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable rubbish transfer station sewage treatment and recycling system to satisfy the rubbish transfer station actual water condition and aim at.
In order to achieve the above object, the present invention provides the following technical solutions.
The embodiment of the application discloses portable rubbish transfer station sewage treatment and recycling system, sewage loop through following equipment and handle:
the sewage adjusting tank is used for storing sewage and stabilizing water quality;
the neutralization, coagulation and stirring integrated device is connected with a dosing device;
a mud-water separation device adopts a plate-and-frame filter press;
the multi-phase air flotation device is connected with the dosing device and comprises a pressure air dissolving system, an air dissolving and releasing system and an air flotation separation system, the pressure air dissolving system comprises a multi-phase flow air dissolving water pump and an air water buffer tank, and the air dissolving and releasing system comprises a pressure regulating valve and an air dissolving water pipeline;
the ozone oxidation tower is connected with an ozone generator;
a cloth bag filter.
Preferably, in the above sewage treatment and recycling system of the portable garbage transfer station, the air flotation separation system adopts a horizontal flow type.
Preferably, in the above-mentioned portable garbage transfer station sewage treatment and recycling system, the chemical feeding device includes an acid storage tank, an alkali storage tank, a flocculant storage tank, and a coagulant aid storage tank.
Compared with the prior art, the utility model has the advantages that 1, under the condition of lower cost (membrane systems such as nanofiltration/reverse osmosis and the like are not needed), a water circulation system is formed, and the purpose of saving water is achieved; 2. the occupied area is small; 3. the quality of the effluent is stable; 4. the highly integrated modular design is convenient for the capacity-increasing and expansion of the transfer station; 5. greatly reducing the retention time of the sewage in the system and simplifying the water treatment system.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of a method for treating and recycling sewage from a portable garbage transfer station according to an embodiment of the present invention;
FIG. 2 is a flow chart of a production process of a portable garbage transfer station sewage treatment and recycling method according to an embodiment of the present invention;
fig. 3 is a diagram of a complete equipment of the sewage treatment and recycling system of the portable garbage transfer station in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the 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 efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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.
As shown in fig. 1-3, the portable garbage transfer station sewage treatment and recycling system adopts the processes of dosing, physicochemical separation and oxidation decoloration for the purpose of meeting the actual water consumption condition of the garbage transfer station, and each link is described as follows:
1. waste water regulating tank
The water quantity and water quality of all sewage entering the sewage treatment system can change at any time, which is very unfavorable for the normal operation of a sewage treatment structure. The larger the fluctuation of water quantity and water quality, the more unstable the treatment effect is, and even the sewage treatment process is seriously damaged. In order to reduce the influence of water quantity and water quality change on the sewage treatment process, a regulating tank is arranged in front of a sewage treatment system to equalize water quality and make up for defects, so that subsequent treatment structures can obtain balanced water inflow and stable water quality during the operation period, and an ideal treatment effect is achieved.
2. Neutralization, coagulation and stirring integrated device
The process includes three steps of acid-base neutralization, coagulation (flocculation) and slow stirring and mixing.
When a neutralizing agent or coagulant (electrolyte) is added to the wastewater to increase the ion concentration in the solution, the thickness of the diffusion layer decreases. When two colloidal particles approach each other, the zeta potential decreases due to the decrease in the thickness of the diffusion layer, so that their mutual repulsive force decreases and the colloidal particles are rapidly aggregated. Through the action of adsorption and electric neutralization, colloidal particles are easy to approach other particles and mutually adsorb, and are condensed into large floccules. The aim of pretreatment can be achieved after the flocculating constituent is formed, and in order to prevent the flocculating constituent from quickly precipitating, a slow mixer is adopted for mixing and stirring, so that the flocculating constituent is kept in a suspension state.
3. Mud-water separation device
Because the wastewater has obvious periodic discharge characteristic, the sludge-water separation can meet the filtering effect by adopting a plate-and-frame filter press which operates intermittently. The filtered clear liquid enters a subsequent environment after being lifted, and the dried sludge and other garbage are compressed and reduced together and then are transported.
4. Multiphase air flotation device
The air-float water-purifying method is characterized by that it adopts multiphase flow pump to directly make air-dissolving and pressure-reducing release so as to make the water-dissolved large quantity of gas be used as working liquid, and when the pressure is suddenly reduced, the countless fine bubbles are released and adhered together with the impurities in the water undergone the process of mixing reaction, and the specific gravity of its flocculated body is less than 1, i.e. its density is less than 1g/cm3So as to float on the liquid surface to form a three-phase mixture of foam (namely air, water and particles), thereby separating pollutants from the wastewater and achieving the purpose of purification.
The waste water added with coagulant and coagulant aid and the gas-dissolving water react and coagulate in the reaction area of the air floating tank, and the coagulation of the original colloid into flocs is the working process of the machine. The whole reaction principle is that medicament diffusion, coagulation hydrolysis, impurity colloid destabilization colloid aggregation and micro-floc aggregation are carried out, so that the particle size of colloid particles is condensed into 2 mm flocs from 0.001 micron, the flocs quickly float upwards, the discharged water is scraped at regular time by a slag scraper, and the discharged water after reaction flotation automatically flows out from a water collecting tank.
Brief introduction of the structure:
the pressure dissolved air floatation process mainly comprises four parts, namely a pressure dissolved air system, a dissolved air release system, an air floatation separation system and an electric control system.
1) Pressure air dissolving system
Comprises a multiphase flow dissolved air water pump, a small air water buffer tank, a pressure detecting instrument and other accessory equipment.
2) Dissolved air release system
Is composed of pressure regulating valve and dissolved-air water pipeline.
In order to reduce corrosion, the pressure regulating valve and the gas dissolving water pipeline are made of stainless steel.
3) Air floatation separation system
The air floatation separation system adopts a horizontal flow type. The function is to ensure a certain volume and surface area of the pool, so that the micro-bubble groups are fully mixed, contacted and adhered with the flocculating constituents in water, and the flocculating constituents with gas are separated from clear water.
After the sewage is reacted in the coagulation reaction tank, the water flow is guided to the bottom so as to enter the air floatation contact chamber from the lower part, the contact time of flocs and bubbles is prolonged, scum on the tank surface is scraped into a scum collecting tank, and clear water is collected by a water collecting pipe at the bottom. The advantages of this form are shallow pool body, low cost, simple structure and convenient management.
5. Medicine adding device
The dosing equipment can be used for dosing acid, alkali, flocculating agent (PAC), coagulant aid (PAM) and other medicaments in the sewage treatment system. The dosing device has the characteristics of compact structure, complete preparation, rapid installation, simple operation and convenient maintenance.
The device can be used for preparing solution and quantitatively and regularly adding medicament. It is composed of the following parts: (1) a stirrer and a stirring drum; (2) adding a liquid medicine metering pump; (3) y-type filter, safety valve, pipeline system;
the working principle of the device is as follows: certain medicament is put into the stirring solution box according to the requirement for stirring, after the dissolution is finished, the control system controls the metering pump to deliver the medicament to the working process of a medicament adding point, and the size of the medicament adding amount can be freely adjusted to meet the requirements of different medicament adding places.
6. Ozone oxidation
The ozone has strong oxidizing power, the oxidation-reduction potential of the ozone is second to that of fluorine, the ozone can be used for quickly oxidizing and decomposing organic matters in wastewater in application, the COD and the chroma are reduced, and the ozone enters an adding pipeline after a manual valve, flow, pressure and temperature are displayed on site, flow monitoring and pressure monitoring. The feeding pipeline is provided with a pressure on-site display and a check valve, ozone gas is mixed with water in a micropore aeration mode, and residual ozone tail gas is discharged into the atmosphere after passing through the tail gas destruction device.
The ozone generator used by the company is a high-frequency ozone generator controlled by a microcomputer. Because a series of new products and new technologies such as a variable frequency variable voltage (VVVF) power circuit, Pulse Width Modulation (PWM) control, DSP digital processing control and the like which are formed by the current latest power electronic module are adopted, and the products are assisted by elaborate design, strict management and careful process control, the products have the advantages of simple operation, flexible control, compact structure, small volume, light weight and the like. Meanwhile, the soft start and soft unloading functions are designed, and the adding power of the ozone generator can be smoothly adjusted to reach the rated ozone output from 10 percent, so that the operation cost is reduced to the maximum extent.
7. Filtering and recycling
The water after oxidation and decoloration is filtered by a cloth bag filter and then is reused for ground cleaning of a transfer station, tire cleaning of a transport vehicle and dust suppression by road spraying.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (3)
1. The utility model provides a portable rubbish transfer station sewage treatment and recycling system which characterized in that, sewage loops through following equipment and handles:
the sewage adjusting tank is used for storing sewage and stabilizing water quality;
the neutralization, coagulation and stirring integrated device is connected with a dosing device;
a mud-water separation device adopts a plate-and-frame filter press;
the multi-phase air flotation device is connected with the dosing device and comprises a pressure air dissolving system, an air dissolving and releasing system and an air flotation separation system, the pressure air dissolving system comprises a multi-phase flow air dissolving water pump and an air water buffer tank, and the air dissolving and releasing system comprises a pressure regulating valve and an air dissolving water pipeline;
the ozone oxidation tower is connected with an ozone generator;
a cloth bag filter.
2. The portable waste transfer station sewage treatment and recycling system of claim 1, wherein the air flotation separation system is of advection type.
3. The portable waste transfer station sewage treatment and recycling system according to claim 1, wherein the dosing device comprises an acid storage tank, an alkali storage tank, a flocculant storage tank, and a coagulant aid storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081016.0U CN211141756U (en) | 2019-11-27 | 2019-11-27 | Portable garbage transfer station sewage treatment and recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081016.0U CN211141756U (en) | 2019-11-27 | 2019-11-27 | Portable garbage transfer station sewage treatment and recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211141756U true CN211141756U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922081016.0U Expired - Fee Related CN211141756U (en) | 2019-11-27 | 2019-11-27 | Portable garbage transfer station sewage treatment and recycling system |
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| CN (1) | CN211141756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835184A (en) * | 2019-11-27 | 2020-02-25 | 南通汇佰川工程技术有限公司 | Portable garbage transfer station sewage treatment and recycling system and method |
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2019
- 2019-11-27 CN CN201922081016.0U patent/CN211141756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835184A (en) * | 2019-11-27 | 2020-02-25 | 南通汇佰川工程技术有限公司 | Portable garbage transfer station sewage treatment and recycling system and method |
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Granted publication date: 20200731 Termination date: 20211127 |