CN106812200A - Pollutant isolates roadnet - Google Patents

Abstract

The invention provides a road system for isolating pollutants, which includes three parts: a paving element, a pipe layer and a particle filling layer. The road system is composed of a plurality of paving elements, and the pipe layer and the bottom layer are arranged at the lower part of the paving element. At least one of the packing layers includes a chelating agent and an overflow release mechanism. Chelating agents can remove or concentrate one or more contaminants from a fluid. The overflow release mechanism can extend upwards on the side of the road system to form a reservoir, which can not only temporarily store fluid, but also prevent or reduce the overflow of fluid on the side of the road system. The system can control the fluid permeability and flow in the road system, and reduce the concentration of one or more pollutants in the fluid by controlling the residence time of the fluid and the sequestering agent, so that the fluid can be fully purified.

Description

Contaminant Isolation Road System

technical field

The invention relates to pollutant isolation technology, in particular to a pollutant isolation road system.

Background technique

Pavement systems can be used in roads, pedestrian walkways, parks, etc. In typical installations, pavement systems have an exposed surface layer and a fluid-permeable support base to prevent fluids (such as water) from pooling on the exposed surface. Exposed surfaces may be stone, engineered paving stones, brick, cement, etc., and a permeable fill material such as sand or fine gravel may be provided between paving elements. The support fluid permeable substratum may consist of sand, crushed stone, pebbles, gravel or rock slabs. In many installations, finer granular materials (e.g. sand, gravel) are used in the uppermost subbing and fill to support the paving elements.

At this stage, my country's environmental pollution is serious, and the isolation and purification devices for pollutants in the road system in our country are very lacking, and the isolation effect of pollutants in the road system is not ideal. First of all, the existing technology is too complicated. Secondly, the construction cost of the existing technology is relatively high. In addition, the treatment method of the existing technology is very inappropriate for the pollutants, which is easy to cause the leakage of pollutants, and the purification effect is very unsatisfactory. The environment has caused a lot of pollution.

Contents of the invention

In view of the above problems, the present invention provides a pollutant isolation road system that can fully purify fluids and has low cost.

The technical solution adopted by the present invention is: a pollutant isolation road system, including a road system, paving elements, permeable filling materials, an upper granular filling layer, an upper pipeline layer, a middle granular filling layer containing a chelating agent, and a middle granular filling layer , a middle pipeline layer, a lower particle filling layer containing a chelating agent, a lower particle filling layer, a lower pipeline layer, an overflow release mechanism, a restrictor valve, a fluid discharge pipeline, and a permeable membrane; the cross section of the road system is a rectangular structure , the road system from bottom to top is the lower pipeline layer, the lower granular filling layer, the lower granular filling layer containing chelating agent, the middle pipeline layer, the middle granular filling layer, the middle granular filling layer containing chelating agent, the upper piping layer and the upper granular Filling layer; the upper particle packing layer, the middle particle packing layer and the lower particle packing layer are all gravel, crushed stone or pebble particles with uniform size; the particles of the upper particle packing layer, the middle particle packing layer and the lower particle packing layer The size becomes larger and larger from top to bottom, further increasing the contact time between the fluid and the chelating agent; the bottom of the lower pipeline layer is laid with a permeable membrane; Permeable filling material is filled between adjacent paving elements, and said paving elements are set to be porous; paving elements, permeable filling material and upper granular packing layer simply filter the pollutants in the fluid, and then penetrate into the upper pipeline layer; the overflow release mechanism is vertically arranged on the right side of the road system, and the outlets of each pipeline layer are connected with the overflow release mechanism; the bottom of the right side of the overflow release mechanism is provided with a fluid discharge pipe, and the fluid A restrictor valve is provided at the discharge pipeline; a chelating agent is provided on the upper side of the upper pipeline layer, the middle pipeline layer and the lower pipeline layer, and a hole is provided on the middle and lower side of the pipeline, and a filter screen is provided at the hole, and A permeable membrane is provided at the outlet of each layer of pipeline adjacent to the overflow release mechanism.

As a preferred technical solution: the chelating agent in the middle granular filling layer containing the chelating agent and the lower granular filling layer containing the chelating agent is applied in the form of powder, dry granular or single sheet.

As a preferred technical solution: the pipes in the upper pipe layer, the middle pipe layer and the lower pipe layer are made of steel, concrete, polymer and composite materials, and the pipes are arranged horizontally.

As a preferred technical solution: the permeable membrane can be laid on the bottom of each pipeline layer according to requirements, each permeable membrane selectively permeates different pollutants, filters the fluid to remove pollutants, and simultaneously increases the concentration of pollutants and Chelating agent reaction time.

As a preferred technical solution: the overflow release mechanism extends upward on the side of the road system to form a reservoir, which can not only be used to temporarily store fluid, but also prevent or reduce the overflow of fluid on the side of the road system.

The beneficial effects of the present invention are: (1) The overflow release mechanism can extend upwards on the side of the road system to form a reservoir, which can not only be used to temporarily store fluid, but also prevent or reduce the overflow of fluid on the side of the road system; (2) ) The system can control the fluid permeability and flow in the road system, and reduce the concentration of one or more pollutants in the fluid by increasing the residence time of the fluid and the sequestering agent, so that the fluid can be fully purified; (3 ) The cost of the road system of the present invention is relatively low, and the purification effect on pollutants is significantly improved.

Description of drawings

Figure 1 is a cross-sectional view of the pollutant isolation road system;

Figure 2 is a half-open sectional view of the limiter valve of the pollutant isolation road system;

Fig. 3 is a partially opened sectional view of the limiter valve of the pollutant isolation road system;

Figure 4 is a cross-sectional view of the valve of the limiter of the pollutant isolation road system;

In the figure: 1 road system, 2 paving elements, 3 permeable filling material, 4 upper granular packing layer, 5 upper piping layer, 6 middle granular packing layer containing chelating agent, 7 middle granular packing layer, 8 middle piping layer, 9 lower particle packing layer containing chelating agent, 10 lower particle packing layer, 11 lower piping layer, 12 overflow release mechanism, 13 restrictor valve, 14 fluid discharge pipe, 15 permeable membrane, 16 fluid, a fluid discharge route, b The route of fluid flowing into the road system, c fluid penetration route.

detailed description

In order to further illustrate the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but they should not be construed as limiting the protection scope of the present invention.

Referring to accompanying drawing 1, a kind of pollutant isolation road system, comprises road system 1, paving element 2, permeable filling material 3, upper granular filling layer 4, upper pipeline layer 5, middle granular filling layer 6 containing chelating agent, middle layer Particle packed layer 7, middle tubing layer 8, lower granular packed layer containing chelating agent 9, lower granular packed layer 10, lower tubing layer 11, overflow release mechanism 12, restrictor valve 13, fluid discharge tubing 14, and permeable membrane 15. The section of the road system 1 is a rectangular structure, and the road system 1 is sequentially composed of the lower pipeline layer 11, the lower particle filling layer 10, the lower particle filling layer 9 containing a chelating agent, the middle pipeline layer 8, and the middle particle layer from bottom to top. The filling layer 7, the middle particle filling layer 6 containing a chelating agent, the upper pipeline layer 5 and the upper particle filling layer 4; the upper particle filling layer 4, the middle particle filling layer 7 and the lower particle filling layer 10 are uniform in size gravel, gravel or pebble particles; the particle size of the upper particle packing layer 4, the middle particle packing layer 7 and the lower particle packing layer 10 is increasing from top to bottom, further increasing the contact time of the fluid and the chelating agent; The bottom of the lower pipeline layer 11 is laid with a permeable membrane 15; the upper part of the upper granular filling layer 4 is evenly spaced with paving elements 2, and the adjacent paving elements 2 are filled with permeable filling materials 3, the paving The element 2 is set to be porous; the paving element 2 and the permeable filling material 3 and the upper particle filling layer 4 simply filter the pollutants in the fluid, and then penetrate into the upper pipeline layer 5; the overflow release mechanism 12 is vertical It is directly arranged on the right side of the road system 1, and the outlets of each pipeline layer are connected with the overflow release mechanism 12; the bottom right side of the overflow release mechanism 12 is provided with a fluid discharge pipeline 14, and the fluid discharge pipeline 14 is provided with Restrictor valve 13, the upper side of described upper floor pipe layer 5, middle floor pipe layer 8 and lower floor pipe layer 11 all is provided with chelating agent, and is provided with hole in the middle and lower side of pipe, and hole place is provided with filter screen, and each A permeable membrane 15 is provided at the pipe outlet of the layer pipe adjacent to the overflow release mechanism 12 .

The chelating agent in the middle granular filling layer 6 containing the chelating agent and the lower granular filling layer 9 containing the chelating agent is applied in the form of powder, dry granular or single sheet.

The pipes in the upper pipe layer 5 , the middle pipe layer 8 and the lower pipe layer 11 are made of steel, concrete, polymer and composite materials, and the pipes are arranged horizontally.

The permeable membranes 15 can be laid on the bottom of each pipe layer according to requirements, and each permeable membrane 15 selectively permeates different pollutants, filters fluid to remove pollutants, and increases the reaction time between pollutants and chelating agents.

The overflow release mechanism 12 extends upwards on the side of the road system to form a reservoir, which can not only store fluid temporarily, but also prevent or reduce the overflow of fluid on the side of the road system.

With reference to accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, the specific embodiment of the present invention is described in detail: fluid flows into the route b of road system through fluid, and paving element 2 and permeable filling material 3 infiltrate into upper granular packing layer 4 successively, pass through After simple filtration, the fluid penetrates into the upper pipeline layer 5 and continues to penetrate downwards, and at the same time reacts with the chelating agent to achieve the effect of purification; when the fluid in the road system 1 overflows, it flows into the overflow release mechanism 12, and the overflow release mechanism The fluid in 12 is then opened through the restrictor valve 13 and discharged through the fluid discharge pipe 14; when the restrictor valve 13 is half-opened in Fig. In accompanying drawing 3, when a small part of the limiter valve 13 is opened, the fluid flow rate is small, and the liquid level is placed on the fluid discharge route a to be discharged through the discharge pipe 14; in the accompanying drawing 4, the restrictor valve 13 is in a closed state, and at this time the fluid cannot be discharged through When the pipeline 14 is discharged, it is discharged through the fluid permeation route c; while the gas generated by the chemical reaction between the pollutant and the chelating agent is further filtered through the pipeline layer, the particle filling layer, and the paving element, and then released into the atmosphere through the gas evaporation route.

The above is only a preferred embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the present invention. It should be regarded as the protection scope of the present invention.

Claims (5)

1. a kind of pollutant isolates roadnet, it is characterised in that：Including roadnet（1）, element of paving the way（2）, permeable fill out Fill material（3）, upper strata particle-filled layers（4）, upper strata pipe layers（5）, the middle level particle-filled layers containing chelating agent（6）, middle level Particle-filled layers（7）, middle level pipe layers（8）, the lower floor's particle-filled layers containing chelating agent（9）, lower floor's particle-filled layers（10）、 Lower floor's pipe layers（11）, overflow relieving mechanism（12）, limiter valve（13）, fluid discharge pipe road（14）And permeable membrane （15）；Described roadnet（1）Section be rectangular configuration, roadnet（1）Lower floor's pipe layers are followed successively by from the bottom to top （11）, lower floor's particle-filled layers（10）, the lower floor's particle-filled layers containing chelating agent（9）, middle level pipe layers（8）, middle level particle Packed layer（7）, the middle level particle-filled layers containing chelating agent（6）, upper strata pipe layers（5）And upper strata particle-filled layers（4）；Institute The upper strata particle-filled layers stated（4）, middle level particle-filled layers（7）With lower floor's particle-filled layers（10）, it is the gravel of size uniform Stone, rubble or cobble particle；Upper strata particle-filled layers（4）, middle level particle-filled layers（7）And lower floor's particle-filled layers（10）'s Particle size is increasing from top to bottom, further the time of contact of increase fluid and chelating agent；Described lower floor's pipe layers （11）Bottom be equipped with permeable membrane（15）；Described upper strata particle-filled layers（4）Top uniform intervals are provided with element of paving the way （2）, adjacent element of paving the way（2）Between be filled with permeable packing material（3）, described element of paving the way（2）It is set to porous； Pave the way element（2）With permeable packing material（3）And upper strata particle-filled layers（4）Pollutant in fluid is carried out simply Filtering, is reinfiltrated into upper strata pipe layers（5）；Described overflow relieving mechanism（12）It is vertically arranged in roadnet（1）Right side, The outlet of each pipe layers with overflow relieving mechanism（12）It is connected；Described overflow relieving mechanism（12）Bottom right side be provided with stream Body discharge line（14）, fluid discharge pipe road（14）Place is provided with limiter valve（13）, described upper strata pipe layers（5）, middle level Pipe layers（8）And lower floor's pipe layers（11）Upside be all provided with chelating agent, and downside is provided with hole in the duct, is provided with hole Screen pack, and in each layer pipeline and overflow relieving mechanism（12）Adjacent pipeline exit is provided with permeable membrane（15）.

2. a kind of pollutant according to claim 1 isolates roadnet, it is characterised in that：It is described containing chelating agent Middle level particle-filled layers（6）With the lower floor's particle-filled layers containing chelating agent（9）In chelating agent with powdered, drying granular or Single sheet is administered.

3. a kind of pollutant according to claim 1 isolates roadnet, it is characterised in that：Described upper strata pipe layers （5）, middle level pipe layers（8）And lower floor's pipe layers（11）In pipe material be steel, concrete, polymer and composite, Pipeline is using the arrangement of level.

4. a kind of pollutant according to claim 1 isolates roadnet, it is characterised in that：Described permeable membrane（15） Each pipe layers bottom, each permeable membrane can be according to demand layed in（15）Optionally permeate different pollutants, filtering stream Body is to remove pollutant, while increasing the reaction time of pollutant and chelating agent.

5. a kind of pollutant according to claim 1 isolates roadnet, it is characterised in that：Described overflow relieving mechanism （12）Upwardly extended in the side of roadnet to form holder, holder not only can be used to temporarily store fluid, and can prevent Only or reduce roadnet fluid-side spilling.