CN212334917U

CN212334917U - Small-sized garbage transfer station leachate treatment integrated device

Info

Publication number: CN212334917U
Application number: CN201920924880.XU
Authority: CN
Inventors: 邹巍; 邓芳; 刘密
Original assignee: Wuhan Shangshan Qingyuan Environmental Protection Technology Co ltd
Current assignee: Wuhan Shangshan Qingyuan Environmental Protection Technology Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2021-01-12
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a small and miniature rubbish transfer station filtration liquid handles integrated device, this integrated device include homogeneity pond, preliminary treatment air supporting deoiling device, denitrification/nitrify inside and outside canister, built-in UF membrane-multiple effect membrane catalytic oxidation (MFR) integrated device. The utility model discloses whole area is little, and the device integrates the degree height, and construction installation cycle is short, and the treatment effeciency is high, and investment cost is low, realizes rubbish transfer station sewage full-scale processing, and no concentrate produces, handles the effluent and can reach "sewage discharge into cities and towns sewer water quality standard" (CJ343-2010) A grade standard.

Description

Small-sized garbage transfer station leachate treatment integrated device

Technical Field

The utility model relates to a landfill leachate handles technical field, in particular to little miniature refuse transfer station filtration liquid handles integrated device.

Background

The leachate of the garbage transfer station belongs to a stage of garbage treatment, the water quantity is small, the leachate is dispersed in all corners of a city, and the treatment equipment has high requirements on space, namely the volume of garbage treatment equipment facilities is reduced as much as possible, and the surrounding landscape environment is protected. The garbage leachate is generated in the garbage compression and volume reduction process of the garbage transfer station, and has the characteristics of complex components, toxic and harmful substances, heavy odor, strong corrosivity, serious environmental pollution, sanitation and the like. Particularly, the chromaticity and the unpleasant odor of the landfill leachate sewage are difficult to solve by a common method, the urban sanitary environment is seriously influenced, and great harm is brought to urban residents.

The traditional landfill leachate treatment process generally adopts biochemistry and membrane treatment, and although the treatment effect is still good, the process has many disadvantages: larger occupied area, higher operating cost, higher process operating requirement and unsuitability for the garbage of the transfer station.

The invention discloses a garbage leachate collection and treatment system with an authorization publication number of CN205917126U, and the garbage leachate collection and treatment system adopts a membrane separation mechanism and a Fenton oxidation process to treat leachate, so that the quality of treated effluent is improved. There are certain drawbacks, however, including: the chroma of the effluent of the Fenton reaction is unstable, and the effluent contains certain suspended matters and other common engineering operation problems; because of the adoption of reverse osmosis equipment, certain concentrated solution is necessarily generated and needs to be collected and treated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a little miniature transfer station filtration liquid treatment integrated device is provided, effectively solved the difficult problem of rubbish transfer station filtration liquid treatment on a small scale, reduce the running cost.

In order to solve the technical problem, the utility model provides a small and miniature transfer station filtration liquid handles integrated device, including the homogeneity pond, the inner and outer cylindrical can, built-in UF membrane-multiple-effect membrane catalytic oxidation (MFR) integrated device in preliminary treatment air supporting deoiling device, denitrification/nitration.

The water outlet of the homogenizing tank is connected with the water inlet of the pretreatment air-flotation oil removal device, the water outlet of the pretreatment air-flotation oil removal device is connected with the water inlet of the denitrification/nitrification inner and outer cylinder tanks, the water outlet of the denitrification/nitrification inner and outer cylinder tanks is connected with the water inlet of the built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) integrated device, and the water outlet of the built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) integrated device discharges final effluent.

The homogenizing tank adopts a tank body with a closed reinforced concrete structure or a steel anti-corrosion tank body and is in a full-underground or semi-underground form.

The pretreatment air-flotation oil removal device adopts a combined type dissolved air flotation machine, comprises a container body, a dissolved air pump, an air compressor, a slag scraping machine and a stirring machine device, and also comprises a dissolved air flotation dosing device.

The denitrification/nitrification inner and outer cylinder tanks adopt a closed carbon steel anti-corrosion tank body structure, the tank body is divided into an inner cylinder and an outer cylinder by a carbon steel partition plate, the inner cylinder 31 is an anaerobic denitrification area, and the outer cylinder 32 is an aerobic nitrification area.

The integrated device with the built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) is an integrated steel anti-corrosion box structure device and comprises a built-in UF membrane area, an acid adding area, and an H₂O₂A dosing zone, a fixed bed oxidation reaction zone, an alkali adding zone, a coagulation flocculation dosing zone, a settling zone, an MFR water outlet membrane pool and a device room.

And the aerobic nitrification area of the outer cylinder is provided with a jet flow blast aeration device.

The built-in UF membrane area is provided with a hollow fiber ultrafiltration membrane component and is provided with an automatic cleaning device.

The fixed bed oxidation reaction zone is filled with SSQY-MFR-A type solid supported catalyst, and is matched with SSQY-MFR-B type liquid catalyst to form A combined catalytic system. The method is used for improving the generation rate of hydroxyl free radicals, simultaneously forming multi-metal high-low valence state cycle conversion and limiting the generation amount of chemical sludge in the reaction process.

The MFR goes out the membrane tank and uses built-in ultrafiltration membrane system to replace the sedimentation tank in traditional fenton reaction to solve fenton reaction effluent chromaticity unstability, contain common engineering operation problems such as certain suspended solid. Meanwhile, part of chemical sludge intercepted by the membrane flows back to the aerobic nitrification area, so that the catalyst and the oxidation medicament which are not fully reacted can be secondarily utilized, the concentration values of the catalyst and the oxidation medicament in the reaction area are maintained, and the overall reaction efficiency is further improved.

The equipment room comprises water pump fan equipment and an electric control system required by the process section.

The utility model has the advantages that: MBR biological treatment and Fenton-like advanced oxidation technology are combined, and long-chain organic matters are subjected to chain scission, mineralization and degradation by physical and chemical modes and chemical groups with strong oxidizing property. Compared with the traditional Fenton oxidation reaction, the SSQY-MFR system can accelerate the free generation rate of hydroxyl, improve the oxidation efficiency, widen the pH application range of the reaction, reduce the dosage of agents such as acid ferrous iron, alkali ferrous iron and the like, and reduce the chemical sludge generated at the same time by 60-70%. The utility model discloses whole area is little, and the device integrates the degree height, and construction installation cycle is short, and the treatment effeciency is high, and investment cost is low, realizes rubbish transfer station sewage full-scale processing, and no concentrate produces, and whole water yield is greater than or equal to 95%. The treated effluent reaches the A grade standard of 'water quality standard of sewage discharged into town sewers' (CJ 343-2010).

Drawings

The technical solution of the present invention will be further specifically described below with reference to the accompanying drawings and the detailed description.

Fig. 1 is the utility model discloses a little miniature refuse transfer station filtration liquid handles integrated equipment principle elevation.

Fig. 2 is the utility model discloses a little miniature refuse transfer station filtration liquid handles integrated equipment principle top view.

Detailed Description

Referring to fig. 1 and 2, the integrated percolate treatment device for the small and micro transfer station comprises four large parts, namely a homogenizing tank 1, a pretreatment air floatation oil removal device 2, a denitrification/nitrification inner and outer cylinder tank 3 and a built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) integrated device 4 which are sequentially arranged according to a process route. The water outlet of the homogenizing tank 1 is connected with the water inlet of a pretreatment air-flotation oil removal device 2, the water outlet of the pretreatment air-flotation oil removal device 2 is connected with the water inlet of a denitrification/nitrification inner and outer cylinder tank 3, the water outlet of the denitrification/nitrification inner and outer cylinder tank 3 is connected with the water inlet of a built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) integrated device 4, and the water outlet of the built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) integrated device 4 discharges final effluent.

More specifically, the homogenizing tank 1 adopts a tank body with a closed reinforced concrete structure or a steel anti-corrosion tank body, and is in a full underground or semi-underground form. The pretreatment air-flotation oil removal device 2 adopts a combined dissolved air flotation machine, which comprises a container body, a dissolved air pump, an air compressor, a slag scraping machine and a stirrer device, and also comprises a dissolved air flotation dosing device. The denitrification/nitrification inner and outer cylinder tanks 3 adopt a closed carbon steel anti-corrosion tank body structure, the tank body is divided into an inner cylinder and an outer cylinder by a carbon steel clapboard, the inner cylinder 31 is an anaerobic denitrification area, and the outer cylinder 32 is an aerobic nitrification area. The hydraulic retention time of the area of the inner cylinder 31 is 0.5-1 d, and the hydraulic retention time of the area of the outer cylinder 32 is 3-5 d. The aerobic nitrification area of the outer cylinder 32 is provided with a jet flow blast aeration device.

The integrated device 4 with built-in UF membrane-multi-effect membrane catalytic oxidation (MFR) is an integrated steel anti-corrosion box structure device, and comprises a built-in UF membrane region 41, an acid adding region 42 and H₂O₂ A dosing zone 43, a fixed bed oxidation reaction zone 44, an alkali addition zone 45, a coagulation flocculation dosing zone 46, a settling zone 47, an MFR effluent membrane pond 48, and an equipment room 49. The built-in UF membrane region 41 is provided with a hollow fiber ultrafiltration membrane module and is equipped with an automatic cleaning device. And adding an acid solution into the acid adding area 42 to adjust the pH value to 2-5. The fixed bed oxidation reaction zone 44 is filled with SSQY-MFR-A type solid supported catalyst, the high-nuclear polyoxometallate compound is used as A matrix and is loaded on A solid adsorption medium to prepare the catalyst, and the SSQY-MFR-B type liquid catalyst is matched to form A combined catalytic system, so that the generation rate of hydroxyl free radicals is increased, the multi-metal high-low valence state cyclic conversion is formed, and the generation amount of chemical sludge in the reaction process is limited. The MFR effluent membrane pool 48 uses a built-in ultrafiltration membrane system to replace a sedimentation tank in the traditional fenton reaction, so as to solve the common engineering operation problems of unstable chromaticity of effluent of the fenton reaction, certain suspended matters and the like. Meanwhile, part of chemical sludge intercepted by the membrane flows back to the aerobic nitrification area, so that the catalyst and the oxidation medicament which can not fully react are secondarily utilized, concentration values of the catalyst and the oxidation medicament in the reaction area are maintained, and the overall reaction efficiency is further improved. The equipment room 4 comprises water pump fan equipment and an electric control system required by the workshop section.

The utility model discloses whole area is little, and investment cost is low, realizes rubbish transfer station sewage full quantization, and no concentrate produces, and whole water yield is greater than or equal to 95%.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A small and miniature integrated device for treating percolate from a refuse transfer station is characterized by comprising a homogenizing tank, a pretreatment air floatation oil removal device, a denitrification/nitrification inner and outer cylinder tank and a built-in UF membrane-multi-effect membrane catalytic oxidation integrated device;

the water outlet of the homogenizing tank is connected with the water inlet of the pretreatment air flotation oil removal device, the water outlet of the pretreatment air flotation oil removal device is connected with the water inlet of the denitrification/nitrification inner and outer cylinder tanks, the water outlet of the denitrification/nitrification inner and outer cylinder tanks is connected with the water inlet of the built-in UF membrane-multi-effect membrane catalytic oxidation integrated device, and the water outlet of the built-in UF membrane-multi-effect membrane catalytic oxidation integrated device discharges final effluent.

2. The integrated device for treating percolate at a small and miniature refuse transfer station according to claim 1, wherein the homogenizing tank is a tank body of a closed reinforced concrete structure or a steel anticorrosion tank body and is installed in a full underground or semi-underground manner.

3. The integrated device for treating percolate at a small and miniature refuse transfer station according to claim 1, wherein the pre-treatment air-flotation oil removal device adopts a combined type dissolved air flotation machine, which comprises a container body, a dissolved air pump, an air compressor, a residue scraper, a stirrer device and a dissolved air flotation dosing device.

4. The integrated device for treating percolate at a small and miniature refuse transfer station according to claim 1, wherein the inner and outer denitrification/nitrification cylinder tanks are of a closed type anti-corrosion tank structure, and are divided into two areas, namely an inner cylinder and an outer cylinder, by using a partition plate, wherein the inner cylinder is an anaerobic denitrification area, and the outer cylinder is an aerobic nitrification area.

5. The integrated device for treating percolate at small and miniature refuse transfer station according to claim 4, wherein the integrated device for catalytic oxidation of built-in UF membrane-multi-effect membrane is an integrated steel anti-corrosion box structure device comprising a built-in UF membrane region, an acid adding region, and H₂O₂A dosing zone, a fixed bed oxidation reaction zone, an alkali adding zone, a coagulation flocculation dosing zone, a settling zone, an MFR water outlet membrane pool and a device room.

6. The integrated small and micro landfill transfer station leachate treatment plant according to claim 4, wherein the aerobic nitrification zone is provided with a jet blast aeration device.

7. The integrated device for treating percolate at a small and miniature refuse transfer station according to claim 5, wherein the built-in UF membrane region is provided with a hollow fiber ultrafiltration membrane module and is provided with an automatic cleaning device.

8. The integrated device for treating percolate at A small and miniature refuse transfer station according to claim 5, wherein the fixed bed oxidation reaction zone is filled with SSQY-MFR-A type solid supported catalyst, and is matched with SSQY-MFR-B type liquid catalyst to form A combined catalytic system.

9. The integrated small and micro landfill transfer station leachate treatment device according to claim 5, wherein the MFR effluent membrane tank uses a built-in ultrafiltration membrane system; and the MFR water outlet membrane tank is connected with the aerobic nitrification area through sludge.

10. The small and micro integrated device for treating percolate at a refuse transfer station according to claim 5, wherein a water pump fan device and an electric control system required by a process section are arranged in the equipment room.