CN215855213U - Garbage leachate treatment device - Google Patents

Garbage leachate treatment device Download PDF

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Publication number
CN215855213U
CN215855213U CN202122392519.7U CN202122392519U CN215855213U CN 215855213 U CN215855213 U CN 215855213U CN 202122392519 U CN202122392519 U CN 202122392519U CN 215855213 U CN215855213 U CN 215855213U
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China
Prior art keywords
light
reservoir
landfill leachate
condenser
water
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CN202122392519.7U
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Chinese (zh)
Inventor
朱嘉
徐炜超
张勇
惠志朋
葛灵杰
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Nanjing University Environmental Planning And Design Institute Jiangsu Co ltd
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Nanjing Ningzhi High New Material Research Institute Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation

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  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The utility model discloses a landfill leachate treatment device which comprises a reservoir, a photo-thermal evaporation ball and a light-transmitting cover, wherein the light-transmitting cover covers the reservoir, the photo-thermal evaporation ball is laid in the reservoir, a steam flow fan is correspondingly arranged on the upper side of the photo-thermal evaporation ball, fresh water tanks are arranged on the periphery of the reservoir, a condenser is further arranged in the light-transmitting cover, a water outlet pipe of the condenser is communicated with a water pump, and a water outlet pipe of the condenser is communicated with the reservoir. The method adopts the photothermal evaporation ball to heat and evaporate the leachate by utilizing illumination energy and converting the illumination energy into heat energy, separates water, volatile micromolecule substances, salt, heavy metals, suspended matter bacteria and the like in the landfill leachate, has low operation energy consumption, and is simple to treat because the distilled water obtained by separation does not contain the salt, the heavy metals and other substances; stable structure, low energy consumption and long service life.

Description

Garbage leachate treatment device
Technical Field
The utility model relates to a leachate treatment device, in particular to a landfill leachate treatment device.
Background
The landfill leachate is a mixed liquid which is formed by high-salt and high-COD organic wastewater generated when the garbage is placed or buried under the runoff effect of surface water and underground water. The landfill leachate has the characteristics of complex components, high ammonia nitrogen content, high heavy metal concentration and the like. The treatment difficulty is large, and the treatment difficulty is always the key point and the difficulty of industrial research.
At present, the main treatment process of the landfill leachate comprises a biological method, a physical and chemical method, an advanced oxidation method, a membrane method, a combination of a plurality of methods and the like. The biological method is adopted for treatment, and the high-concentration salt substance has an inhibiting effect on microorganisms. The physicochemical treatment has large investment and high operating cost, and the expected treatment effect is difficult to achieve. The advanced oxidation technology has the advantages of rapidness, high efficiency, no secondary pollution and the like, but the problems of corrosion, salt deposition, high energy consumption and the like all hinder the industrial development of the advanced oxidation technology. Although the membrane treatment can partially recycle the organic substances, the high organic substances accelerate the pollution blockage and pollution of the membrane, thereby not only increasing the operating cost, but also greatly shortening the service life of the membrane.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a landfill leachate treatment device, which solves the problems of high energy consumption, environmental pollution and high impurity content of separated products in the existing treatment operation.
The technical scheme is as follows: the landfill leachate treatment device comprises a reservoir, a photo-thermal evaporation ball and a light-transmitting cover, wherein the light-transmitting cover covers the reservoir, the photo-thermal evaporation ball is laid in the reservoir, a steam flow fan is correspondingly arranged on the upper side of the photo-thermal evaporation ball, fresh water tanks are arranged on the periphery of the reservoir, a condenser is further arranged in the light-transmitting cover, a water outlet pipe of the condenser is communicated with a water pump, and a water outlet pipe of the condenser is communicated with the reservoir.
In order to facilitate the removal of water in the reservoir, the reservoir is formed by concrete placement, and the pre-buried filtration liquid drain pipe of reservoir lower is punched and is communicated with the reservoir at intervals on the drain pipe, sets up the valve that drains on the drain pipe.
In order to discharge fresh water conveniently, a fresh water pipeline is arranged on one side of the fresh water tank.
The stability is guaranteed, the printing opacity cover comprises support, two rectangle printing opacity faces and two right angled triangle printing opacity faces, and the side is 25 right angled triangle.
The energy consumption is saved, the water pump is connected with the photovoltaic board and is supplied power by the photovoltaic board.
In order to realize college interface heating of penetrating fluid and avoid hardening of salt, the photothermal evaporation ball is in a structure that a flexible nano black gold material wraps a spherical floater.
Preferably, the condenser is composed of a condensate pipe and a condensing plate.
The light-transmitting cover is convenient to fix, and the bottom of the light-transmitting cover is connected and sealed with the outer wall of the fresh water tank.
Has the advantages that: the method adopts the photothermal evaporation ball to heat and evaporate the leachate by utilizing illumination energy and converting the illumination energy into heat energy, separates water, volatile micromolecule substances, salt, heavy metals, suspended matter bacteria and the like in the landfill leachate, has low operation energy consumption, and is simple to treat because the distilled water obtained by separation does not contain the salt, the heavy metals and other substances; the filter liquor can completely tolerate silt, particle suspended matters, colloid, bacteria, salt, heavy metals and the like in the filter liquor, and has stable water quality and long operation life; the interface heating of the percolate can be realized by adopting a structural scheme that the spherical floater is wrapped by the flexible nano black gold material, the photo-thermal conversion efficiency is high, the evaporation effect is good, and the distillation speed is high; the bottom of the water tank is designed to be inclined, so that concentrated water is conveniently discharged; the light-transmitting surface is subjected to super-hydrophilic treatment, so that water vapor is prevented from being condensed into fog, and the light transmittance is reduced; the photovoltaic water pump and the fan are driven to operate, fossil fuel is not consumed, and the photovoltaic water pump and the fan are driven to operate automatically; the steel frame and the double-layer toughened glass have the advantages of high strength, good stability and long service life.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a left side view of the structure of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in figures 1 and 2, the utility model discloses a landfill leachate treatment device, which mainly comprises a water storage tank 4, a photothermal evaporation ball 6, a light-transmitting cover and a condenser. Wherein the water reservoir 4 is cast by concrete, and the inner wall and the outer wall are subjected to waterproof, salt-proof and corrosion-proof treatment. The bottom of the pool is concave downwards to the centre, and the pre-buried filtration liquid drain pipe 5 of minimum department, 5 upper portions of drain pipe punch at regular intervals, communicate with cistern 4. The water discharge pipe 5 is provided with a water discharge valve 13. The photo-thermal evaporation ball 6 is laid in the reservoir 4, the steam flow fan 7 is arranged on the photo-thermal evaporation ball, the steam flow fan 7 is suspended by a cross rod with two ends fixed on the inner side of the fresh water tank, and the fresh water tank 2 is fixed on the four walls of the reservoir 4. The fresh water tank 2 is formed by connecting a circle of 316L stainless steel water tanks, and a fresh water pipeline 3 is arranged on one side of the fresh water tank. The light-transmitting cover is composed of a stainless steel bracket made of 316L material, two rectangular light-transmitting surfaces 1 and two right-angled triangle light-transmitting surfaces 1, and the side surfaces of the light-transmitting cover are in a right-angled triangle shape of 25 degrees. The largest area of the rectangular light-transmitting surface 1 is placed facing south. The light-transmitting surface 1 is made of double-layer toughened glass, and the inner wall of the light-transmitting surface is subjected to super-hydrophilic treatment. The bottom of the light-transmitting cover is connected and sealed with the outer wall of the fresh water tank 2. The condenser consists of a condensate pipe 8 and a condensing plate 9, which are both made of 316L stainless steel. A percolate water inlet pipe 10 is arranged below the condenser, penetrates through the outer wall of the fresh water tank, is connected to the outside of the device and is connected with a water pump 14. The water pump 14 is powered by a photovoltaic panel 15. A percolate drain pipe 11 is arranged above the condenser and is connected downwards to the water reservoir 4.
When the device is operated, the photovoltaic panel 15 supplies power to the water pump 14 to convey the percolate stock solution to enter the percolate inlet pipe 10 of the condenser. The percolate fills the condensate pipe 8 and then enters the reservoir 4 through a percolate drain pipe 11. The photothermal evaporation bulb 6 sucks up the percolate and wets the surface. Meanwhile, the photo-thermal evaporation ball 6 absorbs illumination energy and converts the illumination energy into heat energy, and the surface layer percolate is heated and evaporated to generate steam. The water vapor is blown by the vapor flowing fan 7 to be rapidly gathered upwards, and a small amount of water vapor is condensed on the inner wall of the light transmitting surface to flow downwards and is gathered in the fresh water tank 2. Part of the vapor is condensed on the surface of the condenser facing the reservoir 4 and flows downwards into the fresh water tank 2. The condensing fan 12 blows the water vapor to flow into the space between the light-transmitting surface and the condenser, and condenses into water on the inner wall of the condenser, and flows down into the fresh water tank 2. The fresh water is collected and finally flows out through the fresh water pipe 3.
The working principle is as follows: when the leachate distillation treatment device is used, the surface layer of the photothermal evaporation ball 6 is made of black flexible nano black gold material. The material is designed by a zhujia professor team of Nanjing university, has hydrophilicity, has broadband, high-efficiency light absorption and high-efficiency photo-thermal conversion capability on sunlight, and can realize interface heating of leachate. Interfacial heating is a novel form of solar steam generation. Conventional solar distillers absorb sunlight and convert it to heat energy by blacking the bottom of the reservoir, similar to "boil water → evaporate". Because the specific heat capacity of water is great, most of heat is used for heating water and raising the temperature, and the photo-thermal energy is greatly wasted. And interface heating only heats surface water through certain material design, and the conduction of heat to lower part water is low to use the light heat energy all for the evaporation of water, obtain hot steam fast, improved the light and heat utilization efficiency. When the device operates, the photothermal evaporation ball floats on the liquid level of the percolate, only the lower end contacts and absorbs the percolate, the upper part carries out photothermal evaporation, the heat is blocked from being conducted downwards, and the percolate in the water storage tank only has small temperature rise. Simultaneously, in the in-process that the filtration liquid evaporates, the top salt concentration of light and heat evaporation ball constantly promotes, and under the drive of salinity gradient, filtration liquid stoste is constantly upwards replenished to transport salt downwards, reduce concentration, avoided the hardening of salt. The temperature of the percolate in summer is within 30-35 ℃, and the temperature of the internal water vapor can reach more than 60 ℃ when the device runs. Therefore, the leachate is injected into the condenser, and the large temperature difference can accelerate the condensation of the water vapor. The water vapor is condensed on the condensate pipe and the condensing plate, the released condensation latent heat is absorbed by the percolate in the condensate pipe, and the temperature of the percolate is increased. The high-temperature percolate is injected into the water storage tank, so that the generation of steam can be accelerated, and the steam can be continuously evaporated and generated even at night. More importantly, the recovery of the latent heat of condensation can greatly improve the utilization rate of the photo-thermal energy, improve the water yield and accelerate the distillation treatment of the percolate.

Claims (8)

1. The utility model provides a landfill leachate processing apparatus, its characterized in that evaporates ball and printing opacity cover including cistern, light and heat, the printing opacity covers outside the cistern, light and heat evaporation ball lays in the cistern, light and heat evaporation ball upside correspondence is provided with the steam flow fan, the cistern is provided with fresh water groove all around, still be provided with the condenser in the printing opacity cover, condenser outlet pipe intercommunication water pump, condenser outlet pipe and cistern intercommunication.
2. The landfill leachate treatment device according to claim 1, wherein the reservoir is formed by casting concrete, the leachate drain pipe (5) is embedded at the lowest part of the reservoir, the leachate drain pipe (5) is perforated at intervals and communicated with the reservoir (4), and a drain valve (13) is arranged on the leachate drain pipe (5).
3. The landfill leachate treatment plant of claim 1, wherein a fresh water pipeline is provided at one side of the fresh water tank.
4. The landfill leachate treatment plant of claim 1, wherein the light transparent cover comprises a bracket, two rectangular light transparent surfaces and two right triangle light transparent surfaces, the sides of the light transparent cover are in a right triangle shape of 25 °.
5. The landfill leachate treatment plant of claim 1, wherein the water pump is connected to the photovoltaic panel and powered by the photovoltaic panel.
6. The landfill leachate treatment plant of claim 1, wherein the photothermal evaporation ball is a flexible nano black gold material wrapped spherical floater structure.
7. The landfill leachate treatment plant according to claim 1, wherein the condenser is composed of a condensate pipe (8) and a condensation plate (9).
8. The landfill leachate treatment plant according to claim 1, wherein the light-transmitting cover bottom is hermetically connected to the outer wall of the fresh water tank (2).
CN202122392519.7U 2021-09-30 2021-09-30 Garbage leachate treatment device Active CN215855213U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122392519.7U CN215855213U (en) 2021-09-30 2021-09-30 Garbage leachate treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122392519.7U CN215855213U (en) 2021-09-30 2021-09-30 Garbage leachate treatment device

Publications (1)

Publication Number Publication Date
CN215855213U true CN215855213U (en) 2022-02-18

Family

ID=80262234

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122392519.7U Active CN215855213U (en) 2021-09-30 2021-09-30 Garbage leachate treatment device

Country Status (1)

Country Link
CN (1) CN215855213U (en)

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GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Xu Weichao

Inventor after: Hui Zhipeng

Inventor before: Zhu Jia

Inventor before: Xu Weichao

Inventor before: Zhang Yong

Inventor before: Hui Zhipeng

Inventor before: Ge Lingjie

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20240105

Address after: 14/F, Yifu Management Science Building, No. 22 Hankou Road, Gulou Street, Gulou District, Nanjing City, Jiangsu Province, 210009

Patentee after: Nanjing University environmental planning and Design Institute (Jiangsu) Co.,Ltd.

Address before: 211100 No. 6 Donglu Road, Dongshan International Enterprise Headquarters Park, Jiangning District, Nanjing City, Jiangsu Province

Patentee before: NANJING NINGZHI HIGH-NEW MATERIAL RESEARCH INSTITUTE Co.,Ltd.