CN211134924U

CN211134924U - Multidimensional three-dimensional reinforced constructed wetland type solid waste treatment landfill

Info

Publication number: CN211134924U
Application number: CN201921611885.3U
Authority: CN
Inventors: 谢天宇; 谢宁汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-31
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a landfill yard is handled to three-dimensional artifical wetland formula of reinforceing admittedly of multidimension is including the landfill hole, the bottom and the lateral wall of landfill hole all set up the barrier layer, set gradually many perforation according to solid useless landfill progress in the landfill hole and annotate liquid pipe and perforation pipette, perforation is annotated the liquid pipe and is annotated liquid pipe and vertical perforation including horizontal perforation, the perforation pipette includes horizontal perforation pipette and vertical perforation pipette, solid useless adoption filter material of landfill hole separates, form solid useless landfill layer and middle processing filter material layer, horizontal perforation is annotated the liquid pipe and is set up on every layer of solid useless landfill layer, horizontal perforation pipette sets up below every layer of solid useless landfill layer. The solid waste landfill site realizes the harmless treatment of solid waste while landfill by utilizing the artificial wetland technology, and realizes the purpose of safe landfill of the solid waste.

Description

Multidimensional three-dimensional reinforced constructed wetland type solid waste treatment landfill

Technical Field

The utility model relates to a gu useless processing technology field especially relates to a constructed wetland formula is reinforceed to multidimension solid useless landfill site of handling.

Background

Under the current economic and technical conditions, because the garbage and general solid wastes are low in price and simple and convenient to treat by adopting a landfill method, the phenomenon that the solid wastes are treated by adopting the landfill method is still rare, and the solid wastes are directly buried without any harmless treatment (or only simple treatment) during landfill, but the treatment method has some problems: firstly, the risk of environmental pollution is extremely high; secondly, the continuous adverse effect on the environment around the landfill site can be caused in the landfill process and after the landfill site is sealed; thirdly, the landfill is difficult to repair after being sealed, the repair period is long, and the development and utilization of the land of the landfill are influenced.

Disclosure of Invention

In order to solve the problems existing in the prior art, the utility model provides a multidimensional three-dimensional reinforced constructed wetland type solid waste treatment landfill site, which is based on the existing solid waste landfill site technology, constructs a multidimensional three-dimensional reinforced constructed wetland and utilizes the constructed wetland technology to carry out harmless treatment while landfill on the solid waste buried in the field.

In order to realize the above-mentioned purpose, the utility model discloses a landfill is handled to three-dimensional artifical wetland formula of reinforceing admittedly useless of multidimension includes the landfill hole, the bottom and the lateral wall of landfill hole all set up the barrier layer, set gradually many perforation according to solid useless landfill progress in the landfill hole and annotate liquid pipe and perforation pipette, perforation pipette is including horizontal perforation notes liquid pipe and vertical perforation notes liquid pipe, perforation pipette is including horizontal perforation pipette and vertical perforation pipette, solid useless adoption filter material of going up in the landfill hole separates, form solid useless landfill layer and middle processing filter material layer, horizontal perforation notes liquid pipe sets up on every layer of solid useless landfill layer, horizontal perforation pipette sets up below every layer of solid useless landfill layer.

Further, a plurality of bottom portion perforating pipette and side wall perforating pipette are respectively disposed on the bottom portion and side wall of the landfill pit, and the bottom portion perforating pipette and side wall perforating pipette are communicated with the perforating pipette in the landfill pit and with the bottom portion horizontal collecting pipe.

And furthermore, a grading treatment filter material and long fiber filter cloth are arranged on the outer sides of the bottom perforating pipette, the side wall perforating pipette, the perforating pipette in the landfill pit and the perforating and liquid injecting pipe.

Further, a bottom treatment frit layer was placed on top of the bottom perforation pipette.

Further, the bottom horizontal liquid collecting pipe is arranged between the bottom impermeable layer and the bottom treatment filter material layer.

Further, the thickness of the bottom treatment filter material layer is larger than that of the middle treatment filter material layer.

Further, the thickness of each solid waste filling layer is not more than 3 m.

The utility model discloses construct the three-dimensional artificial wetland that reinforces of multidimension on current solid useless landfill site basis, utilize the constructed wetland technique to carry out landfill while innocent treatment to solid waste, solved the various problems that current landfill site direct landfill exists, realized the purpose of solid waste safe landfill.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

Fig. 1 is a cross-sectional view of a landfill site for multi-dimensional reinforced artificial wetland solid waste disposal according to a preferred embodiment of the present invention.

Fig. 2 is a top view of the buried pit of fig. 1.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, the multi-dimensional reinforced artificial wetland solid waste disposal landfill according to the preferred embodiment of the present invention includes a landfill pit 1, wherein a pit opening 1a of the landfill pit 1 is larger than a pit bottom 1b, and has a trapezoidal longitudinal cross-sectional shape. The bottom and the side wall of the landfill pit 1 are provided with impermeable layers 10 for preventing the filtrate from permeating into the soil. The impervious layer 10 can be made of reinforced concrete material, masonry concrete material, modified fly ash reinforced coating material, modified fly ash coating material, fly ash (fly ash and quicklime) stone material or other impervious materials. Preferably, the landfill pit is also provided with a measure for preventing rainwater from entering the pit in a large quantity and draining a large quantity of accumulated water in the pit.

A plurality of bottom perforating pipettes 11 and side wall perforating pipettes 12 are respectively arranged on the bottom and side walls of the landfill pit 1, and the bottom perforating pipettes 11 and the side wall perforating pipettes 12 are arranged at equal intervals on the bottom and the peripheral side walls of the landfill pit.

A plurality of perforation liquid injection pipes 2 and perforation liquid suction pipes 3 are sequentially arranged in the landfill pit according to the solid waste landfill progress, and a plurality of holes are formed in the perforation liquid injection pipes 2 and the perforation liquid suction pipes 3. The perforated-hole-filling spout 2 includes a horizontal perforated-hole-filling spout 21 and a vertical perforated-hole-filling spout 22, which are in communication with each other. The pipette includes a horizontal pipette 31 and a vertical pipette 32, which are in communication with each other. The vertical-perforation-pouring spout 22 and the vertical-perforation pipette 32 are vertically disposed in the landfill 1. The horizontal perforation liquid pouring spout 21 and the horizontal perforation liquid suction tube 31 are horizontally disposed in the landfill 1. The landfill bottom portion boring pipette 11 and the side wall boring pipette 12 communicate with the boring pipette 3 in the landfill. The bottom of the landfill pit is also provided with a bottom horizontal liquid collecting pipe 6 which is horizontally arranged on the bottom impermeable layer 10, the perforating pipette 3 and the bottom perforating pipette 11 are connected with the bottom horizontal liquid collecting pipe 6, and leachate is intensively discharged for recycling after treatment or discharged after harmless treatment.

The perforated liquid injection pipe 2 and the perforated liquid suction pipe 3 in the landfill pit, the bottom perforated liquid suction pipe 11 and the side wall perforated liquid suction pipe 12 are coated by graded treatment filter materials and long fiber filter cloth, and the liquid injection pipe and the liquid suction pipe are prevented from being blocked during solid waste landfill while the effective biochemical treatment is carried out on the solid waste in the landfill. Preferably, the thickness of the graded filter material is 200-300 mm.

Each layer of landfill solid waste in the landfill pit is separated by the treatment filter material to form a solid waste landfill layer 4 and an intermediate treatment filter material layer 5, namely, the adjacent two solid waste landfill layers 4 are separated by the intermediate treatment filter material layer 5. The horizontal perforation liquid injection pipe 21 is arranged on each layer of solid waste buried layer 4, and injects biochemical treatment agent containing a certain amount of gas treatment agent such as water (or recycled leachate), biochemical agent, biological treatment strain liquid or ozone into the solid waste buried layer 4. The horizontal perforation pipette 31 is arranged below each solid waste burying layer 4 and is used for sucking away and discharging percolate of the solid waste burying layer 4. Preferably, the thickness of each solid waste buried layer 4 is not more than 3m, and the thickness of the intermediate treatment filter material layer 5 is 200-300 mm.

The intermediate treatment filter material layer 5 can be one of modified fly ash, furnace slag, organic biochemical solid waste (straw, garden waste, deoiled kitchen waste, food processing waste and the like) and brown peat, or any combination of the above materials. Under the independent or combined action of the filter materials, the leachate of the solid waste filling layer 4 is simply pretreated, and various harmful substances such as harmful heavy metal ions and the like transmitted by the leachate are removed through biochemical actions such as adsorption, filtration, complexation and the like.

The bottom of the landfill 1 is provided with a bottom treatment frit layer 13, which bottom treatment frit layer 13 is laid on the bottom perforation pipette 11. The bottom treatment filter bed 13 is made of the same material as the intermediate treatment filter bed 5. Preferably, the thickness of the bottom treatment filter material layer 13 is 400-600 mm.

The upper end of the perforation liquid injection pipe 2 is connected with a water pump and is used for pumping biochemical agents into the pipe. The upper end of the perforation pipette 3 is connected with a fan which generates negative pressure for sucking the percolate inside the landfill. The top of the perforation liquid injection pipe 2 and the perforation liquid suction pipe 3 are sealed to prevent the harmful gas from leaking.

The utility model discloses a solid waste landfill should adopt to remove closed conveyer wet process landfill in order to prevent that raise dust and harmful gas from leaking when landfill is useless admittedly. And (3) paving the intermediate treatment filter material after finishing the landfill of each layer of solid waste, and uniformly irrigating with water (or leachate for recycling) after finishing paving the intermediate treatment filter material. After the water level is equal to (or slightly higher than) the water level of the intermediate treatment filter material, the filter material is covered by a mulching film (the mulching film can be removed or broken during solid waste landfill), and the semi-anaerobic fermentation process is controlled by injecting air into a liquid suction pipe and removing the mulching film. And injecting a biochemical treatment agent into the solid waste landfill layer through the perforated liquid injection pipe, and continuously performing long-acting harmless treatment on the solid waste. And the perforating pipette concentrates and recycles the percolate of each layer of solid waste filling layer or discharges the percolate after harmless treatment.

In order to ensure the normal work of the liquid suction pipe, the filtering layer on the outer side of the liquid suction pipe can be regularly subjected to pressure backwashing, and pressure backwashing water is discharged from the liquid injection pipe. Preferably, the upper part of the liquid injection pipe is provided with a gas collecting and treating device which collects the reaction gas in the solid waste filling layer and carries out innocent treatment and utilization.

The utility model is suitable for a municipal solid waste landfill, municipal sewage plant sludge (or mummification mud) landfill, various incineration fly ash landfill, various tailings landfill, industrial waste landfill, the landfill after river pond desilting mud mummification etc..

The utility model discloses a solid useless landfill yard is to the requirement of solid useless landfill: before the domestic garbage is buried, materials (such as waste metal, plastic and the like) which are not biochemical or difficult to biochemical are sorted to the maximum extent, and oil removal and salt and alkali removal pretreatment are carried out; before landfill, various incineration fly ashes are preferably subjected to harm reduction pretreatment to reduce the harm of heavy metal ions in the incineration fly ashes, the incineration fly ashes are preferably subjected to wet method and uniformly mixed with a certain amount of biochemical organic waste for landfill, and the mixed biochemical organic waste can be crops, plant straws, garden garbage and the like; simple harm reduction pretreatment is carried out when the tailings are buried, so that the harm of acid, alkali and heavy metal ions in the tailings is reduced. According to the situation, the tailings are preferably buried by adopting a wet method and uniformly mixing a certain amount of biochemical organic waste materials, and the mixed biochemical organic materials can be crops, plant straws, garden garbage and the like.

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The utility model provides a landfill yard is handled to three-dimensional artifical wetland formula of reinforceing admittedly of multidimension, the bottom and the lateral wall of landfill all set up the barrier layer, its characterized in that, set gradually many perforation according to the landfill progress admittedly in the landfill and annotate liquid pipe and perforation pipette, the perforation is annotated the liquid pipe and is annotated the liquid pipe including horizontal perforation and vertical perforation, the perforation pipette includes horizontal perforation pipette and vertical perforation pipette, each layer solid useless adoption of landfill incasement is separated by handling the filter material, forms solid useless landfill layer and middle processing filter material layer, horizontal perforation is annotated the liquid pipe and is set up every layer gu useless the higher authority of landfill layer, horizontal perforation pipette sets up every layer gu useless below the landfill layer.

2. The multi-dimensional reinforced artificial wetland solid waste disposal landfill site of claim 1, wherein a plurality of bottom and side wall perforating pipettes are disposed at the bottom and side walls of the landfill pit, respectively, the bottom and side wall perforating pipettes communicating with the perforating pipette within the landfill pit and with a bottom horizontal collection tube.

3. The multi-dimensional reinforced artificial wetland solid waste treatment landfill as claimed in claim 2, wherein the bottom perforated pipette, the side wall perforated pipette, and the perforated pipette and the perforated liquid injection pipe in the landfill pit are provided with graded treatment filter materials and long fiber filter cloth on the outer sides.

4. The multi-dimensional reinforced artificial wetland solid waste treatment landfill as claimed in claim 2, wherein a bottom treatment filter layer is arranged on the bottom perforation pipette.

5. The multi-dimensional reinforced artificial wetland solid waste treatment landfill according to claim 4, wherein the bottom horizontal liquid collecting pipe is arranged between the anti-seepage layer at the bottom and the bottom treatment filter material layer.

6. The multi-dimensional reinforced artificial wetland solid waste treatment landfill according to claim 4, wherein the thickness of the bottom treatment filter layer is greater than the thickness of the middle treatment filter layer.

7. The multi-dimensional reinforced artificial wetland solid waste disposal landfill site of claim 1, wherein the thickness of each layer of the solid waste landfill layer is not more than 3 m.