CN214360750U

CN214360750U - Leachate treatment system for garbage transfer station

Info

Publication number: CN214360750U
Application number: CN202120125253.7U
Authority: CN
Inventors: 王静; 王怡玥; 王光; 刘海龙
Original assignee: Liaoning Zhongzhou Deshui Environmental Protection Technology Co ltd
Current assignee: Liaoning Zhongzhou Deshui Environmental Protection Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-10-08
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses a rubbish transfer station filtration liquid processing system belongs to waste water treatment technical field. The utility model discloses a garbage transfer station leachate treatment system which mainly comprises a filter pressing device, an electrolytic air flotation device and a disc tube type reverse osmosis device; the water outlet of the filter pressing device is connected with the water inlet of the electrolytic air flotation device through a stainless steel pipeline, the water outlet of the electrolytic air flotation device is connected with the inlet of the disc tube type reverse osmosis device through a high-pressure plunger pump, and sludge generated by the electrolytic air flotation device is dehydrated and then packaged and buried. The utility model discloses a refuse transfer station filtration liquid processing system can high-efficiently get rid of pollutants such as high concentration organic matter, nitrogen, phosphorus and oils in the landfill leachate to realized the water purification retrieval and utilization after handling, avoided the pollution risk of landfill leachate to the environment.

Description

Leachate treatment system for garbage transfer station

Technical Field

The utility model relates to a waste water treatment technical field, concretely relates to rubbish transfer station filtration liquid processing system.

Background

The garbage transfer station needs to compress a large amount of domestic garbage every day, and the domestic garbage is mainly perishable organic matter with high water content, and is easy to generate garbage leachate. The leachate is directly discharged into the outside water body, so that great pollution is caused to the environment, for example, pollutants such as organic matters, nitrogen, phosphorus, oil and the like in the leachate are directly discharged into a river channel, so that a large amount of dissolved oxygen in the water body is consumed, the transparency of the water body is reduced, the water quality of the water body in the river channel is blackened and smelled, and the eutrophication of the water body is generated; a large amount of suspended solids can block pipelines and the like at the same time, and the ecological environment of the water body is seriously damaged, so that the leachate of the garbage transfer station is treated to reach the standard and then discharged into the external water body.

At present, a biological treatment method, a physical treatment method and the like are generally adopted by a treatment device of percolate of a refuse transfer station, and the defects of complex treatment process, large occupied area, low efficiency, high cost and even incapability of reaching the standard exist in the prior art, so that the standard discharge of the percolate of the refuse transfer station is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a rubbish transfer station filtration liquid processing system can effectively get rid of pollutants such as high concentration organic matter, nitrogen, phosphorus and oils in the rubbish filtration liquid to realized filtering water retrieval and utilization after the processing, avoided the pollution risk of rubbish transfer station filtration liquid to the environment.

The utility model discloses technical scheme as follows:

the utility model provides a leachate treatment system for a garbage transfer station, which mainly comprises a filter pressing device, an electrolytic air flotation device and a disc tube type reverse osmosis device; the water outlet of the filter pressing device is connected with the water inlet of the electrolytic air flotation device through a stainless steel pipeline, the water outlet of the electrolytic air flotation device is connected with the inlet of the disc tube type reverse osmosis device through a high-pressure plunger pump, and sludge generated by the electrolytic air flotation device is dehydrated and then packaged and buried.

Further, the filter pressing device is a filter press which performs solid-liquid separation on the household garbage.

Further, the filter press is a plate and frame filter press, a vertical filter press or a belt filter press.

Furthermore, the electrolytic air flotation device mainly comprises a shell, an electrolysis device, a sludge discharge device, a slag scraping device, a slag collecting device and the like, wherein the electrolysis device is positioned in the middle of the shell and comprises more than 2 groups of anode electrodes and cathode electrodes which are arranged in a staggered mode; the sludge discharge device is positioned at the bottom of the shell and is communicated with the reaction cavity of the electrolysis device, the inner wall of the sludge discharge device is an inclined plane, and the bottom of the sludge discharge device is provided with a sludge discharge hole; the slag scraping device is arranged on the upper portion of the shell and comprises two bearing seats, a transmission hinge arranged on the bearing seats, a plurality of arc-shaped scraping plates arranged on the transmission hinge and a driving motor connected with the bearing seat on one side, the slag collecting device is arranged on the inner side wall of the shell and comprises an inclined mud collecting plate and a groove body.

Furthermore, the electrolytic air flotation device also comprises a flocculating agent putting device which is arranged at the upper part of the shell and adds the flocculating agent solution in the storage tank into the landfill leachate to be treated through a peristaltic pump.

Further, the material of the anode electrode and the cathode electrode is titanium or platinum.

Further, the anode electrode and the cathode electrode are of a net structure and are bent into a cylinder shape.

Furthermore, the length of the scraper on the slag scraping device can be extended or shortened, and the scum at different liquid levels can be cleaned.

Furthermore, the water outlet of the electrolytic air flotation device is connected with the inlet of the disc tube type reverse osmosis device through a high-pressure plunger pump.

Furthermore, the disc tube type reverse osmosis device mainly comprises a DTRO membrane, a pressure-resistant sleeve, a flow guide disc, a sealing ring, a central pull rod and other devices, under the driving of the high-pressure plunger pump, condensed water which can pass through the DTRO membrane enters a water production pipeline and is recycled as purified water, and trapped liquid which cannot pass through the DTRO membrane enters a concentrated water pipeline and returns to the electrolytic air flotation device.

Further, dish tubular reverse osmosis unit's DTRO diaphragm has first inclined plane and second inclined plane, and the inclination on first inclined plane and second inclined plane is opposite, and the inclination on first inclined plane and second inclined plane is 10 ~ 20, avoids dirty the stop on the membrane surface, causes the diaphragm to block up.

Furthermore, the disc-tube type reverse osmosis device is formed by connecting more than 2 groups of disc-tube type reverse osmosis components in series.

Furthermore, the trapped liquid of the disc-tube type reverse osmosis device returns to the inlet of the electrolytic flotation device through a pipeline.

Further, the sludge generated by the electrolytic air flotation device is dehydrated by a centrifuge and then packaged and buried.

Compared with the prior art, the utility model discloses gain following beneficial effect:

1. the utility model discloses a landfill leachate treatment system simple structure, durable, easy to maintain.

2. The utility model discloses a landfill leachate processing system can effectively get rid of pollutants such as high concentration organic matter, nitrogen, phosphorus and oils in the landfill leachate to realized the water purification retrieval and utilization after handling, avoided the pollution to the environment, reduced the cost that the penetrant was handled.

3. The utility model discloses an electrolysis air supporting device of landfill leachate processing system uses insoluble anode and negative pole, and is network structure, switches on direct current, with waste water electrolysis, positive pole and negative pole produce small hydrogen and oxygen bubble, and is great with the area of contact of impurity in the waste water, can with pollutant particle in the waste water or earlier through coagulating the flocculating constituent adhesion that the processing formed and come up to the surface of water, generate the foam blanket, then strike off the foam, realize the separation of pollutants.

4. The utility model discloses a landfill leachate processing system's electrolysis air supporting device's positive pole has great specific surface area, and the positive pole produces chlorine and has the oxidation when having chloride ion to exist, and chlorine is hydrolysised and is produced hypochlorite root and also have the oxidation to organic matter in the water has stronger degradation, has improved the efficiency of getting rid of COD in the sewage.

5. The utility model discloses a landfill leachate processing system's electrolysis air supporting device's scraper blade has the advantage that can clear up the dross to the not co-altitude liquid level, can effectively avoid thoroughly striking off the dross on surface because the indefinite scraper blade of height of liquid level can't be abundant for waste water treatment's effect is more excellent.

Drawings

In order to clearly illustrate the embodiments of the present invention, the drawings to which the embodiments relate will be briefly described below.

Fig. 1 is the structure schematic diagram of the landfill leachate treatment system of the utility model.

Fig. 2 is the structure schematic diagram of the electrolytic air flotation device of the landfill leachate treatment system of the utility model, wherein, 1, the casing, 2, the electrolysis unit, 3, the sludge discharge device, 4, the slag scraping device, 5, the slag collecting device.

Fig. 3 is the structural schematic diagram of the disc tube type reverse osmosis membrane of the landfill leachate treatment system of the utility model, wherein, 1, membrane.

Detailed Description

The present invention is described in detail with reference to the following embodiments, but the embodiments of the present invention are not limited thereto, and obviously, the embodiments in the following description are only some embodiments of the present invention, and for those skilled in the art, other similar embodiments may be obtained without inventive skill, and all fall within the protection scope of the present invention.

Example 1

The utility model provides a leachate treatment system for a garbage transfer station, which mainly comprises a filter pressing device, an electrolytic air flotation device and a disc tube type reverse osmosis device as shown in figure 1; the water outlet of the filter pressing device is connected with the water inlet of the electrolytic air flotation device through a stainless steel pipeline, the water outlet of the electrolytic air flotation device is connected with the inlet of the disc tube type reverse osmosis device through a high-pressure plunger pump, wherein the filter press is a belt filter press and is used for carrying out solid-liquid separation on the domestic garbage; the electrolytic flotation device mainly comprises a shell, an electrolytic device, a sludge discharge device, a slag scraping device, a slag collecting device, a flocculating agent feeding device and the like, wherein the electrolytic device is positioned in the middle of the shell and comprises 3 groups of anode electrodes and cathode electrodes which are arranged in a staggered mode, the anode electrodes and the cathode electrodes are of net structures and are bent into a cylindrical shape, and the anode electrodes and the cathode electrodes are made of titanium or platinum; the sludge discharge device is positioned at the bottom of the shell and is communicated with the reaction cavity of the electrolysis device, the inner wall of the sludge discharge device is an inclined plane, and the bottom of the sludge discharge device is provided with a sludge discharge hole; the scum scraping device is arranged at the upper part of the shell and comprises two bearing seats, a transmission hinge arranged on the bearing seats, a plurality of arc-shaped scraping plates arranged on the transmission hinge and a driving motor connected with the bearing seats on one side, and the length of each scraping plate can be extended or shortened to clean scum on liquid levels with different heights; the slag collecting device is arranged on the inner side wall of the shell and comprises an inclined mud collecting plate and a groove body; the flocculating agent feeding device is arranged at the upper part of the shell and is used for adding a flocculating agent solution in the storage tank into the landfill leachate to be treated through a peristaltic pump; the water outlet of the electrolytic air flotation device is connected with the inlet of the disc tube type reverse osmosis device through a high-pressure plunger pump, the disc tube type reverse osmosis device mainly comprises a DTRO membrane, a pressure-resistant sleeve, a flow guide disc, a sealing ring, a central pull rod and the like, the DTRO membrane of the disc tube type reverse osmosis device is provided with a first inclined plane and a second inclined plane, the inclination angles of the first inclined plane and the second inclined plane are opposite, and the inclination angles of the first inclined plane and the second inclined plane are 15 degrees, so that the membrane blockage caused by the fact that dirt stays on the surface of the membrane is avoided; under the drive of the high-pressure plunger pump, clear water generated by the electrolytic air flotation device can enter a water production pipeline through the DTRO membrane to be reused as purified water, trapped liquid which cannot pass through the DTRO membrane enters a concentrated water pipeline and returns to an inlet of the electrolytic air flotation device to continue electrolytic air flotation treatment, and sludge generated by the electrolytic air flotation device is dehydrated and then packaged and buried.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A garbage transfer station percolate treatment system is characterized by mainly comprising a filter pressing device, an electrolytic air flotation device and a disc tube type reverse osmosis device, wherein a water outlet of the filter pressing device is connected with a water inlet of the electrolytic air flotation device through a stainless steel pipeline;

the filter pressing device is a plate and frame filter press, a vertical filter press or a belt filter press;

the electrolytic air flotation device mainly comprises a shell, an electrolytic device, a sludge discharge device, a slag scraping device and a slag collecting device, wherein the electrolytic device is positioned in the shell and comprises more than 2 groups of anode electrodes and cathode electrodes which are arranged in a staggered manner; the sludge discharge device is positioned at the bottom of the shell and is communicated with the cavity of the electrolysis device, the inner wall of the sludge discharge device is an inclined plane, and the bottom of the sludge discharge device is provided with a sludge discharge hole; the slag scraping device is arranged at the top of the shell and comprises two bearing seats, a transmission hinge arranged on the bearing seats, more than 2 arc-shaped scraping plates arranged on the transmission hinge and a driving motor connected with the bearing seat on one side; the slag collecting device is arranged on the inner side wall of the shell and comprises an inclined mud collecting plate and a groove body;

the disc tube type reverse osmosis device mainly comprises a DTRO membrane, a pressure-resistant sleeve, a flow guide disc, a sealing ring and a central pull rod, wherein the DTRO membrane is provided with a first inclined plane and a second inclined plane, the inclination angles of the first inclined plane and the second inclined plane are opposite, and the inclination angles of the first inclined plane and the second inclined plane are 10-20 degrees.

2. The landfill leachate treatment system of claim 1, wherein the electrolytic flotation device further comprises a flocculant feeding device installed at the top of the housing, and the flocculant solution in the storage tank is added to the landfill leachate to be treated by a peristaltic pump.

3. The landfill leachate treatment system of claim 1, wherein the material of the anode electrode and the cathode electrode of the electrolytic gas floating device is titanium or platinum.

4. The leachate treatment system of claim 1, wherein the anode and cathode of the electro-flotation device are both in a net structure and are bent into a cylindrical shape.

5. The leachate treatment system of claim 1, wherein the length of the scraper on the slag scraping device of the electrolytic flotation device can be extended or shortened.

6. The landfill leachate treatment system of claim 1, wherein the disc-type reverse osmosis unit comprises more than 2 sets of disc-type reverse osmosis modules connected in series.

7. The landfill leachate treatment system of claim 1, wherein the retentate of the disc-tube reverse osmosis unit is returned to the electrolytic flotation unit through a pipeline.