Water-permeable brick for pavement

Abstract

The invention discloses a water-permeable brick for a pavement. The water-permeable brick for the pavement comprises a brick body (1) laid on the pavement, a through hole (2) is formed in the brick body (1) in the height direction, a filtering device (3) is arranged in the through hole (2) and is filled with filtering filler containing a microbial agent, and the microbial agent comprises bacillus subtilis, rhodop seudanonas palustris, bacillus lincheniformis and lactobacillus plantarum. When surface water flows into the through hole (2), the microbial agent contained in the filtering filler can degrade nitrogen, phosphorus and organic matters in the surface water, a peculiar smell is avoided, pollution to underground water is reduced, the water quality of the underground water is improved, and the water-permeable brick can be used for building sponge cities.

Description

technical field [0001] The invention relates to the field of road surface purification, in particular to a permeable brick for road surfaces. Background technique [0002] At present, the large amount of hardening of the urban ground prevents surface precipitation from infiltrating the land and isolates the exchange of water vapor and heat energy, resulting in urban waterlogging and heat island effect from time to time. In the prior art, one of the ways to alleviate the above phenomenon is to pave a large number of permeable bricks, and only rely on the water permeability of the gaps between the adjacent bodies of the permeable bricks or the water permeability of the brick structure gaps, so that the dust and road surface pollution caused by wind and sand weather The formed organic matter, oil stains, etc. can easily block the permeable gap, reducing the permeable performance of the permeable brick, or even losing the permeable function; not only that, the surface precipitat...

AI Technical Summary

Problems solved by technology

[0002] At present, the large amount of hardening of the urban ground prevents surface precipitation from infiltrating the land and isolates the exchange of water vapor and heat energy, resulting in urban waterlogging and heat island effect from time to time

In the prior art, one of the ways to alleviate the above phenomenon is to pave a large number of permeable bricks, and only rely on the water permeability of the gaps between the adjacent bodies of the permeable bricks or the water permeability of the brick structure gaps, so that the dust and road surface pollution caused by wind and sand weather The formed organic matter, oil stains, etc. can easily block the permeable gap, reducing the permeable performance of the permeable brick, or even losing the permeable function; not only that, the surface precipitation in the gap of the permeable brick body is repeatedly frozen, thawed and weathered, which makes the strength of the permeable brick body decrease. Causes the surface of the brick body to crack, thereby shortening its service life

[0003] In addition, with the erosion of precipitation, heavy metals from roads, roof sediments, colloids and acidic substances in the atmosphere are integrated into precipitation, which seriously pollutes surface precipitation and groundwater.

For example: CN2011101087899 discloses a permeable brick that can absorb heavy metal ions, but once the absorption is saturated, this kind of permeable brick will lose its effect and cannot be reused and replaced repeatedly. At the same time, it has no obvious removal effect on organic pollution, suspended solids and acid rain.

[0004] The permeable bricks in the prior art cannot realize the functions of high-efficiency water permeability, filtering pollutants in precipitation, and degrading and deodorizing the trapped pollutants, and the existing permeable bricks are not easy to replace and have poor weather resistance

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