CN214192806U - Kitchen waste extrusion wastewater pretreatment device - Google Patents
Kitchen waste extrusion wastewater pretreatment device Download PDFInfo
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- CN214192806U CN214192806U CN202022217568.2U CN202022217568U CN214192806U CN 214192806 U CN214192806 U CN 214192806U CN 202022217568 U CN202022217568 U CN 202022217568U CN 214192806 U CN214192806 U CN 214192806U
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Abstract
The utility model provides a surplus extrusion waste water pretreatment device in kitchen, including the former pond that is used for holding surplus extrusion waste water in kitchen, still include: the adjusting tank is connected with the raw water tank through a lifting pump; the microfiltration equipment is connected with the adjusting tank through a water inlet pipe, and the other end of the microfiltration equipment is provided with a water outlet pipe; one end of the flocculation separation equipment is connected with the microfiltration equipment through a water outlet pipe, and the other end of the flocculation separation equipment is provided with a drain pipe for discharging the sewage after flocculation separation; the adjusting tank top is equipped with the medicine system A that can add different medicaments to the adjusting tank and adjust sewage pH value, medicine system A includes the NaOH solution of 10% concentration that can adjust the PH of waste water to 8. The utility model discloses can solve the waste water slag content height that perishable rubbish such as meal kitchen, kitchen are surplus produces in extrusion process, problem that pollutant concentration is high reduces SS in the waste water, reduces the treatment cost, is favorable to effectively going on of follow-up sewage treatment.
Description
Technical Field
The utility model belongs to the technical field of meal kitchen waste water treatment, a surplus extrusion waste water pretreatment device in kitchen is related to.
Background
In the face of increasing garbage yield and environment condition deterioration, garbage classification management is adopted to reduce garbage disposal quantity to the maximum extent, realize garbage resource utilization and improve living environment quality. Under the background of classifying the basic types of the domestic wastes by 'harmful wastes, dry wastes, wet wastes and recyclables', a large amount of kitchen wastes and kitchen wastes are not mixed with other domestic wastes any more and need to be treated separately.
At present, kitchen waste is generally subjected to dehydration treatment on the waste, and the content of suspended matters in wastewater generated in the process of treating and extruding the perishable waste such as kitchen waste and kitchen waste is high. Suspended solids (suspended solids) refer to solid matter suspended in water, including inorganic matter, organic matter, and silt, clay, microorganisms, etc., which are insoluble in water. The content of suspended matters in water is one of indexes for measuring the water pollution degree, the suspended matters are the main reasons for causing water turbidity, and the organic suspended matters are easy to ferment anaerobically after being precipitated, so that the water quality is deteriorated. The comprehensive discharge standard of the Chinese sewage is classified into 3 grades, the highest allowable discharge concentration of suspended matters in the sewage and the wastewater is specified, and the turbidity of the suspended matters in the water is specified by the Chinese underground water quality standard and the domestic drinking water sanitation standard.
The main methods of the existing common dehydration treatment include high-pressure extrusion, screw extrusion, centrifugal dehydration and the like. When the dehydration technology is adopted for treatment, the solid slag content in water is generally higher, the granularity is small, the pollutant concentration is high, and the sewage treatment is difficult.
In the prior art, the waste water after tax refunding treatment has high slag content and small granularity, and can cause the problems of pump body blockage, too large pressure loss along the way and the like in the sewage conveying process. The high suspended matter content causes the high concentration of sewage pollutants, the high treatment load, the high investment of sewage treatment facilities, large occupied area, high treatment cost and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide a surplus extrusion waste water pretreatment device in kitchen can get rid of the solid phase in the kitchen garbage dehydration back waste water, realizes the deoiling of kitchen waste water and takes off sediment preliminary treatment, reduces SS and pollutant concentration in the sewage, reduce cost.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a surplus extrusion waste water pretreatment device in kitchen, still includes including the former pond that is used for holding surplus extrusion waste water in kitchen: the adjusting tank is connected with the raw water tank through a lifting pump; the microfiltration equipment is connected with the adjusting tank through a water inlet pipe, and the other end of the microfiltration equipment is provided with a water outlet pipe; one end of the flocculation separation equipment is connected with the microfiltration equipment through a water outlet pipe, and the other end of the flocculation separation equipment is provided with a drain pipe for discharging the sewage after flocculation separation; the adjusting tank top is equipped with the medicine system A that can add different medicaments to the adjusting tank and adjust sewage pH value, medicine system A includes the NaOH solution of 10% concentration that can adjust the PH of waste water to 8.
In the adjusting tank, indexes such as pH and sedimentation performance of the sewage are adjusted by adding different agents. The sewage in the adjusting tank enters a microfiltration device to realize the primary separation of scum in the sewage; scum with larger particles which can be separated by 30 to 40 percent and more than 0.1mm in the kitchen sewage can be removed; the water content of the slag is about 80 percent. The sewage after primary separation by the microfiltration equipment enters flocculation separation equipment; in the flocculation separation stage, the separation of water and slag is realized after the addition, stirring and flocculation of the flocculating agent, SS in the water can reach below 2000mg/L, and the water content of the separated slag can reach 70-80%.
Furthermore, the upper part of the flocculation separation equipment is provided with a dosing system B which can add a flocculating agent into the flocculation separation equipment. The utility model discloses at the flocculation separation stage, add stirring behind the flocculating agent PAM, make the aggregation of suspended solid in the sewage, form great wadding group, the wadding group of being convenient for and water realize solid-liquid separation through splitter.
Further, the flocculation separation equipment discharges the pretreated sewage into a sewage treatment system through a drain pipe, and the sewage is discharged after being treated by the sewage treatment system and reaching the standard.
Further, the dosing system B comprises a flocculant PAM. Compared with other flocculating agents, the PAM flocculating agent has the advantages of small using amount, strong flocculation capacity, high flocculation speed, high efficiency, small environmental influence, less generated sludge, easy treatment and the like, and plays an important role in saving water, strengthening wastewater treatment and recycling.
Further, the microfiltration equipment is one of an elliptical folding machine, a bag type microfiltration machine and a drum type microfiltration machine. The utility model discloses a micro-filtration equipment realizes holding back of small dross. The secondary extrusion dehydration of the micro scum can be realized through a 0.1mm grid gap elliptical folding machine and a pressure backflow plate; and primary filtration can also be realized by bag type microfiltration equipment.
Further, the flocculation separation equipment is one of a screw stacking machine, a screw stringing machine, a centrifugal machine, a plate and frame filter press and a belt filter. The utility model discloses a flocculation separation equipment carries out solid-liquid separation, realizes getting rid of SS.
Furthermore, one end of the top of the microfiltration equipment and/or the flocculation separation equipment is provided with a sludge outlet. The scum in the microfiltration equipment can conveniently enter the flocculation separation equipment through the scum outlet, the sludge separated from the flocculation separation equipment can conveniently enter the sludge tank, and the scum can be secondarily utilized, buried or incinerated after being treated in modes of composting, deep dehydration, drying and the like.
Compared with the prior art, the utility model has the advantages of:
1. the utility model relates to a surplus extrusion waste water pretreatment of kitchen device is high to the waste water slag content that perishable rubbish such as meal kitchen, kitchen are remained produces in the extrusion process, and characteristics that pollutant concentration is high through the desliming in advance of waste water desliming processing, SS in the reduction waste water is favorable to effectively going on of follow-up sewage treatment.
2. The utility model discloses a mode of two-stage processing realizes that the solid phase in the kitchen garbage dehydration preliminary treatment back waste water gets rid of, realizes the deoiling and the deslag preliminary treatment of kitchen waste water, reduces SS and pollutant concentration in the sewage, reduces treatment cost.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure, a kitchen waste extrusion wastewater pretreatment device 1, a raw water tank 2, an adjusting tank 3, a lifting pump 4, a microfiltration device 5, a flocculation separation device 6, a dosing system A7, a dosing system B8, a sewage treatment system 9 and a sludge outlet 10.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-3, the utility model relates to a kitchen waste extrusion wastewater pretreatment device 1, including being used for holding kitchen waste extrusion wastewater's former pond 2, still include: the adjusting tank 3 is connected with the raw water pool 2 through a lifting pump 4; the microfiltration device 5 is connected with the adjusting tank 3 through a water inlet pipe, and the other end of the microfiltration device 5 is provided with a water outlet pipe; one end of the flocculation separation equipment 6 is connected with the microfiltration equipment 5 through a water outlet pipe, and the other end of the flocculation separation equipment 6 is provided with a drain pipe for discharging the sewage after flocculation separation; the upper part of the adjusting tank 3 is provided with a dosing system A7 which can add different agents into the adjusting tank 3 to adjust the PH value of the sewage, and the dosing system A7 comprises a 10% NaOH solution which can adjust the PH value of the wastewater to 8.
The utility model discloses 6 upper portions of flocculation separation equipment are equipped with the medicine system B8 that can add the flocculating agent to 6 of flocculation separation equipment. The flocculation separation equipment 6 discharges the pretreated sewage into a sewage treatment system 9 through a drain pipe. And one end of the top of the microfiltration device 5 and/or the flocculation separation device 6 is provided with a sludge outlet 10.
The microfiltration equipment 5 of the utility model can adopt but not limited to equipment such as an elliptical folding machine, a bag type microfiltration machine, a drum type microfiltration machine and the like; the flocculation separation equipment 6 can adopt but is not limited to a stacked screw machine, a screw stringing machine, a centrifuge, a plate and frame filter press, a belt filter and the like.
As shown in fig. 2, in the present embodiment, the microfiltration device 5 adopts an elliptical stack machine, and the flocculation separation device 6 adopts a stack screw machine system.
The sewage that this embodiment kitchen discarded object produced after pretreatment such as extrusion dehydration gets into former pond 2, gets into adjustment tank 3 through elevator pump 4 with certain velocity of flow. In the adjusting tank 3), NaOH solution with the concentration of 10% is added according to a certain proportion through a dosing system, and the pH value of the sewage is adjusted to 8.
The sewage passing through the adjusting tank 3 automatically flows into the micro-filtration device 5 through the water inlet pipe to realize the primary separation of scum in the sewage. The slag body with the thickness of more than 0.1mm is continuously pushed forwards at the upper part of the elliptical folding machine through the rotation of the lamination, and enters a mud bucket after being filter-pressed by a filter press plate at the tail end, and the water content of the obtained solid slag can reach about 80 percent. The suspension containing suspended matters with the particle size of less than 0.1mm enters the next stage of treatment process through the lamination filter seam of the elliptical folding machine, namely the suspension is treated in the flocculation separation equipment 6, and 30-40% of solid slag in the kitchen sewage can be removed through the treatment of the elliptical folding machine.
And (4) feeding the sewage subjected to primary separation by the elliptical folding machine into a spiral folding machine system for flocculation and solid-liquid separation. In the flocculation separation stage, a flocculating agent is added and stirred to aggregate suspended matters in the sewage to form a large floc, and the floc and water are subjected to solid-liquid separation through a screw stacking machine. SS in the separated water can reach below 2000mg/L, and the water content of the separated slag can reach 70-80% through a screw stacking machine.
The effluent water separated by the screw stacking machine can enter a subsequent sewage treatment system 9 and is discharged after reaching the standard after being treated. The slag can be treated by composting, deep dehydration, drying and the like, and then is recycled, buried or incinerated.
Example 2
As shown in fig. 3, sewage generated by the kitchen waste after being pretreated by extrusion dehydration enters a raw water tank 2 and enters an adjusting tank 3 at a certain flow rate through a lift pump 4.
In the adjusting tank 3, NaOH solution with the concentration of 10% is added according to a certain proportion through a dosing system, and the pH value of the sewage is adjusted to 8.
The sewage flows into the micro-filtration equipment 5 through the adjusting tank 3, and the flocculation aid PAC is added to realize the one-time separation of the scum in the sewage. The slag body with the thickness of more than 0.1mm is continuously pushed forwards at the upper part of the elliptical folding machine through the rotation of the lamination, and enters a mud bucket after being filter-pressed by a filter press plate at the tail end, and the water content of the obtained solid slag can reach about 80 percent. The suspension containing suspended matters below 0.1mm enters the flocculation separation equipment 6 through the lamination filter slot of the elliptical folding machine. 30-40% of solid slag in the kitchen sewage can be removed through the treatment of the elliptical folding machine.
And (4) feeding the sewage subjected to primary separation by the elliptical folding machine into a centrifugal machine system for flocculation and solid-liquid separation. In the flocculation separation stage, a flocculating agent PAM is added and stirred to aggregate suspended matters in the sewage to form larger flocs, and the flocs and water are subjected to solid-liquid separation through a two-phase horizontal spiral centrifuge. SS in the separated water can reach below 2000mg/L, and the water content of the separated slag can reach 75-80% through a screw stacking machine.
The effluent separated by the centrifuge can enter a subsequent sewage treatment system 9 and is discharged after reaching the standard after being treated. The slag can be treated by composting, deep dehydration, drying and the like, and then is recycled, buried or incinerated.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a surplus extrusion waste water pretreatment device in kitchen, is including being used for holding surplus extrusion waste water's former pond (2) in kitchen, its characterized in that still includes:
the adjusting tank (3) is connected with the raw water pool (2) through a lifting pump (4);
the microfiltration device (5) is connected with the adjusting tank (3) through a water inlet pipe, and a water outlet pipe is arranged at the other end of the microfiltration device (5);
one end of the flocculation separation equipment (6) is connected with the microfiltration equipment (5) through a water outlet pipe, and the other end of the flocculation separation equipment (6) is provided with a drain pipe for discharging the sewage after flocculation separation;
the sewage treatment device is characterized in that a dosing system A (7) capable of adding different agents into the adjusting tank (3) to adjust the PH value of the sewage is arranged above the adjusting tank (3), and a NaOH solution with the concentration of 10% capable of adjusting the PH value of the wastewater to 8 is arranged in the dosing system A (7).
2. The kitchen waste squeezing water pretreatment device according to claim 1, wherein a chemical feeding system B (8) capable of adding a flocculating agent into the flocculation separation equipment (6) is arranged at the upper part of the flocculation separation equipment (6).
3. The kitchen waste pressing pretreatment device according to claim 1, wherein said flocculation separation equipment (6) discharges pretreated sewage into a sewage treatment system (9) through a drain pipe.
4. The kitchen waste pretreatment device of claim 2, wherein the dosing system B (8) comprises a flocculant PAM.
5. The kitchen waste pressing wastewater pretreatment device according to claim 1, wherein the micro-filtration equipment (5) is one of an elliptical stack machine, a bag micro-filtration machine and a drum micro-filtration machine.
6. The kitchen waste pressing wastewater pretreatment device according to claim 1, wherein the flocculation separation equipment (6) is one of a stacked screw machine, a tandem screw machine, a centrifuge, a plate and frame filter press, and a belt filter.
7. The kitchen waste pressing pretreatment device of claim 1, wherein one end of the top of the micro-filtration device (5) and/or the flocculation separation device (6) is provided with a sludge outlet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022217568.2U CN214192806U (en) | 2020-09-30 | 2020-09-30 | Kitchen waste extrusion wastewater pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022217568.2U CN214192806U (en) | 2020-09-30 | 2020-09-30 | Kitchen waste extrusion wastewater pretreatment device |
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| Publication Number | Publication Date |
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| CN214192806U true CN214192806U (en) | 2021-09-14 |
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| CN202022217568.2U Active CN214192806U (en) | 2020-09-30 | 2020-09-30 | Kitchen waste extrusion wastewater pretreatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116655154A (en) * | 2023-06-08 | 2023-08-29 | 江苏泰源环保科技股份有限公司 | Treatment method of high-concentration capsicum wastewater |
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2020
- 2020-09-30 CN CN202022217568.2U patent/CN214192806U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116655154A (en) * | 2023-06-08 | 2023-08-29 | 江苏泰源环保科技股份有限公司 | Treatment method of high-concentration capsicum wastewater |
| CN116655154B (en) * | 2023-06-08 | 2024-02-06 | 江苏泰源环保科技股份有限公司 | Treatment method of high-concentration capsicum wastewater |
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