Permeable paving system and paving method for removing oil stain in runoff rainwater

A permeable pavement, rainwater technology, applied in the direction of runoff/rainwater treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve environmental pollution, has not been effectively solved, has not considered road runoff oil pollution, etc. problems, to achieve the effect of easy-to-hang biomass, prevent loss, and enrich micropores

Inactive Publication Date: 2017-05-10
LINGNAN LANDSCAPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing permeable pavement pavement has not considered the large amount of oil in the runoff of the pavement, and the oil seeps into the ground...

Method used

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  • Permeable paving system and paving method for removing oil stain in runoff rainwater
  • Permeable paving system and paving method for removing oil stain in runoff rainwater
  • Permeable paving system and paving method for removing oil stain in runoff rainwater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] Embodiment 1, permeable pavement system

[0111] The structure of the permeable pavement system is divided into permeable brick layer, microbial layer, permeable geotextile layer and permeable base layer from top to bottom.

[0112] 1) Permeable layer

[0113] The permeable layer is composed of permeable bricks with a thickness of 40-80mm and a porosity of 15%-20%. The main function is to quickly infiltrate the rainwater from the road surface into the ground, and complete the primary filtration of the road runoff to prevent some large particles from entering the ground.

[0114] The permeable brick can be a common type of permeable brick on the market, and the corner of the permeable brick is 4-6mm (or the radius of the inverted arc is 4-6mm). The gaps at the corners of the permeable pavement are microbial channels for microbial addition.

[0115] 2) Leveling layer

[0116] A leveling layer is set under the permeable brick, which is a structural layer for leveling and...

Embodiment 2

[0123] Embodiment 2, microorganism injector

[0124] 1) The types of microorganisms are mainly hydrocarbon oxidizing bacteria, hydrocarbon degrading bacteria and petroleum degrading bacteria. This type of microorganism uses petroleum hydrocarbons as a carbon source for assimilation and degradation, and finally completely mineralizes and transforms them into harmless inorganic substances, thereby reducing oil pollution.

[0125] 2) The added microorganisms are prepared microbial bacterial liquids, which contain the nutrients required by the microorganisms.

[0126] 3) Microorganisms are added using matching microbial syringes. The main material of the syringe is PVC.

[0127] The microbial syringe includes a handle, a nozzle, a connecting rod, a hollow tube, a piston, an injection tube, an injection port, an upper baffle, and a lower baffle; an injection tube is provided at the front end of the hollow tube, and a connecting rod is provided in the hollow tube , one end of the...

Embodiment 3

[0130] Embodiment 3, permeable pavement method

[0131] 1. Construction of each layer of permeable pavement

[0132] 1) Excavation of the subgrade: according to the design requirements, excavate the roadbed, clear the earthwork, and reach the design elevation; check whether the longitudinal slope, transverse slope and sideline meet the design requirements; repair the subgrade, level and compact it, and the compaction coefficient Up to 95% or more.

[0133] 2) Laying of permeable base: Lay 80-120mm thick natural graded gravel material and sand-free concrete, and level and compact, with a compaction coefficient of more than 95%.

[0134] 3) Laying of permeable geotextile: laying 300g / m 2 Permeable geotextile.

[0135] 4) Laying of the microbial reaction layer: first place the biological ceramsite in the plastic mesh (the plastic mesh diameter is smaller than the ceramsite particle size to avoid the loss of the ceramsite), then immerse it in the prefabricated microbial bacteri...

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Abstract

The invention belongs to the technical field of permeable paving, and particularly discloses a permeable paving system and a paving method for removing oil stain in runoff rainwater. The permeable paving system structurally comprises a permeable layer, a leveling layer, a microorganism layer, a permeable geotextile layer and a permeable base layer from top to bottom. The permeable layer is used for quickly permeating the rainwater and primarily filtering the rainwater; the leveling layer is used for cushioning and permeating water; the microorganism layer is used for adsorbing and removing the oil stain in runoff, so that permeable channels can be prevented from being blocked by the oil stain, or the oil stain can be prevented from being permeated into underground water; the permeable geotextile layer is used for permeating the permeated water of the system and preventing loss of microorganisms; the permeable base layer is used for isolating natural soil from the permeable paving system and preventing the natural soil from being spread in the microorganism layer. The paving method includes excavating roadbeds; sequentially laying the permeable base layer, the permeable geotextile layer, the microorganism layer, the leveling layer and the permeable layer. The permeable paving system and the paving method have the advantages that the microorganisms can be regularly added into the permeable paving system, so that the content of the microorganisms can be guaranteed; the oil stain in the runoff rainwater can be effectively removed, the permeable paving system and the paving method are low-carbon, green and environmentally friendly and are wide in applicability, and energy can be saved.

Description

technical field [0001] The invention belongs to the technical field of permeable pavement, and in particular relates to a permeable pavement system and a pavement method for removing oil stains in runoff rainwater. Background technique [0002] In the process of urbanization, the surface of modern cities is gradually hardened and covered by water-blocking materials such as buildings and concrete, forming an ecological "artificial desert". While convenient transportation facilities and paved roads bring great convenience to people's travel, these impermeable roads also have a great negative impact on the ecological environment of the city. Therefore, in the construction of urban ground, it is necessary to follow the laws of nature, coordinate the city with nature as much as possible, achieve the combination of ground hardening and ground "softening", and strengthen the "softening" construction of urban ground while satisfying urban functions . [0003] Use materials with go...

Claims

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Application Information

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IPC IPC(8): E01C11/22E01C5/04C02F3/34
CPCE01C11/225C02F3/348C02F2103/001Y02A10/30Y02A30/60
Inventor 于田田高文卉高彦波佘建云林子明李佳润孙经纬何桢魏一璇崔卓迩
Owner LINGNAN LANDSCAPE
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