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Runoff water quality-improving vertical greening and water-retention matrix and preparation method thereof

A technology for improving water quality and vertical greening, applied in the field of urban vertical greening

Pending Publication Date: 2021-05-18
江苏省安全生产科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main functional characteristics of the existing vertical greening substrates are light weight and providing a carrier for plant growth, but the water retention substrate for purifying runoff rainwater on the vertical facade of buildings and improving water quality has not yet been involved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In a vertical greening project, 0.5 part of curing agent is dissolved in 1 part of solvent in parts by weight and used as curing agent solution, and sludge-based charcoal 20, perlite 15, crude fiber humus 40, ceramsite 15 and Attapulgite 5 is mixed in proportion and stirred evenly as a nutrient component for use, then 6 parts of nutrient components and 2.5 parts of binder are fully mixed by weight fraction and then added to the curing agent solution, and then insecticide is added to smell Die, the dosage is 1.5g / m3; Shi Kefeng long-acting slow-release compound fertilizer (fertility slow-release agent), the dosage is 30g / m3, mix evenly and pour into the mold, heat curing, compression molding. Under these conditions, the organic pollutants in the runoff rainwater on the vertical facade of the building can be reduced by 15-30%, the SS can be reduced by 20-40%, and the nutrients can be reduced by 12-16%.

Embodiment 2

[0023] In a vertical greening project, 0.5 part of solidifying agent is dissolved in 1 part of solvent by weight for use as a solidifying agent solution, and sludge-based charcoal 30, perlite 10, crude fiber humus 30, ceramsite 15 and Attapulgite 10 is mixed in proportion and stirred evenly as a nutrient component for use, then 6 parts of nutrient components and 2.5 parts of binder are thoroughly mixed by weight fraction and then added to the curing agent solution, and then insecticide is added to smell Dead, dosage 2.5g / m3; Shi Kefeng long-acting slow-release compound fertilizer (fertility slow-release agent), dosage 35g / m3, mix evenly, pour into the mold, heat curing, compression molding. Under these conditions, the organic pollutants in the runoff rainwater on the vertical facade of the building can be reduced by 30-40%, the SS can be reduced by 25-40%, and the nutrients can be reduced by 15-18%.

Embodiment 3

[0025] In a vertical greening project, 0.5 part of curing agent is dissolved in 1 part of solvent in parts by weight and used as curing agent solution, sludge base charcoal 30, perlite 10, crude fiber humus 40, ceramsite 5 and Attapulgite 10 is mixed in proportion and stirred evenly as a nutrient component for use, then 6 parts of nutrient components and 2.5 parts of binder are thoroughly mixed by weight fraction and then added to the curing agent solution, and then insecticide is added to smell Die, dosage 3.5g / m3; Shi Kefeng long-acting slow-release compound fertilizer (fertility slow-release agent), dosage 30g / m3, mix evenly, pour into mold, heat and solidify, compression molding. Under these conditions, the organic pollutants in the runoff rainwater on the vertical facade of the building can be reduced by 28-35%, the SS can be reduced by 30-40%, and the nutrients can be reduced by 12-16%.

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PUM

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Abstract

The invention discloses a runoff water quality-improving vertical greening and water-retention matrix and a preparation method thereof, and belongs to the technical field of urban vertical greening. Matrix raw materials are easy to obtain, price is low, and sludge recycling can be achieved. The matrix comprises the following components in parts by weight: 5.5-6 parts of nutrient components, 1.5-2.5 parts of thermoplastic phenolic resin serving as an adhesive, 0.5-1 part of thermosetting phenolic resin serving as a curing agent and 1-1.5 parts of ethanol aqueous solution serving as a solvent. The nutrient components comprise the following components in parts by weight: 20-30 parts of sludge-based carbide, 10-15 parts of perlite, 30-45 parts of crude fiber humus, 15-20 parts of ceramsite and 5-10 parts of attapulgite. The preparation method of the matrix comprises the following steps: dissolving the quantitative curing agent into the ethanol aqueous solution serving as the solvent; and mixing the nutrient components and the adhesive in a proportion and adding an obtained mixture into the quantitative curing agent solution, stirring the mixture evenly, pouring the mixture into a mold, and conducting heating, curing and compression molding. The used matrix can effectively improve runoff water quality, and reduce organic pollutants by 15-40%, SS by 20-40% and nutrient substances by 12-18%.

Description

technical field [0001] The invention belongs to the technical field of urban vertical greening, and in particular relates to a runoff water quality-improving vertical greening water retention matrix and a preparation method thereof. Background technique [0002] During the rapid development of the city, more and more reinforced concrete high-rise buildings are built, and the population density increases, which makes the green land shortage. At the same time, the air pollution intensifies, the heat island effect is significant, and the ecological environment is destroyed. This series of problems can be alleviated by maximizing the expansion of urban green living space and increasing the urban greening rate. [0003] Vertical greening technology, also known as three-dimensional greening technology and plant wall technology, is developed from the extension of roof greening technology. Planting plants on vertical facades and arbitrary planes through specific counting methods is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/10A01G24/15A01G24/12A01G24/30A01G24/20C05G3/00C05G3/40C05G3/60C05G5/40
CPCA01G24/10A01G24/15A01G24/12A01G24/30A01G24/20C05D9/00C05G3/00C05G3/40C05G3/60C05G5/40
Inventor 于学珍郁颖蕾孙佳佳李忠慧韩辉荣铁渝周薇薇朱芳艳项璐肖丹丹
Owner 江苏省安全生产科学研究院
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