Sector-shaped multi-dimensional cross-flow type composite terrestrial plant buffer zone and construction method thereof

A plant buffer zone and a construction method technology, which are applied in the field of fan-shaped multi-dimensional cross-flow composite terrestrial plant buffer zone and its construction, can solve the problem of failure to clearly divide different pollutant removal functional areas, less involvement in biodiversity protection and Landscape aesthetics, without considering the establishment of terrestrial vegetation buffer zone and other issues, to achieve the effect of landscape effect and ecological benefits, abundant species, and prolonged hydraulic retention time

Inactive Publication Date: 2015-06-03
BEIJING FORESTRY UNIVERSITY
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also the following defects: the plants used in the patent are mainly aquatic plants with a single type; the water flow that pollutes the incoming water is not designed, the functional division of the system is not clear, and the interception effect and ability are insufficient
[0006]1) The shore buffer zone (water-land ecotone) is used as the only barrier for water body protection, and the establishment of a terrestrial vegetation buffer zone outside the buffer zone is not considered;
[0007]2) In view of the limited land area on the shore of the water body, the des

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sector-shaped multi-dimensional cross-flow type composite terrestrial plant buffer zone and construction method thereof
  • Sector-shaped multi-dimensional cross-flow type composite terrestrial plant buffer zone and construction method thereof
  • Sector-shaped multi-dimensional cross-flow type composite terrestrial plant buffer zone and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Construct a fan-shaped multi-dimensional cross-flow composite terrestrial plant buffer zone on the land on the shore of a lake. The specific construction parameters are as follows:

[0054]

[0055] The farmland runoff is introduced into the system, and the indicators of water inflow and outflow are as follows:

[0056] Detection Indicator SS (mg / L) COD Cr (mg / L) NH 4 + -N (mg / L) TP (mg / L) TN (mg / L) flooded 334 75 6.9 1.3 19 out of water 63 33 1.6 0.4 5.6 Removal rate (%) 91.2 56.0 76.8 69.3 71.5

[0057] Among them, except TN does not reach the surface In addition to the water-like standard, the rest of the indicators have reached the surface Water-like standards. The results prove that this method can effectively reduce the pollution load of low-pollution water entering the ecotone. One year later, the survey of regional plants found that 7 species of herbaceous plants had been added in the area without ...

Embodiment 2

[0059] Construct a fan-shaped multi-dimensional cross-flow composite terrestrial plant buffer zone on the land along the bank of a river. The specific construction parameters are as follows:

[0060]

[0061] The tail water of the urban sewage treatment plant is introduced into the system, and the indicators of the influent and effluent are as follows:

[0062] Detection Indicator SS (mg / L) COD Cr (mg / L) NH 4 + -N (mg / L) TP (mg / L) TN (mg / L) flooded 216 48 6.9 0.6 16 out of water 49 41 2.6 0.3 7.1 Removal rate (%) 87.4 14.6 62.4 50.0 55.7

[0063] Among them, except for TN indicators that do not reach the surface In addition to the water-like standard, the rest of the indicators have basically reached the surface Water-like standards. The results prove that this method can effectively reduce the pollution load of low-pollution water entering the ecotone. One year later, the survey of regional plants found that 1...

Embodiment 3

[0065] A fan-shaped multi-dimensional cross-flow composite terrestrial plant buffer zone is constructed on the land on the bank of a reservoir. The specific construction parameters are as follows:

[0066]

[0067] The low-concentration farmland wastewater is introduced into the system, and the indicators of the influent and effluent are as follows:

[0068] Detection Indicator SS (mg / L) COD Cr (mg / L) NH 4 + -N (mg / L) TP (mg / L) TN (mg / L) flooded 403 52 8.2 0.8 11 out of water 118 37 4.3 0.3 6.2 Removal rate (%) 70.8 28.2 47.6 62.5 43.7

[0069] Except for TN not up to the standard, the rest of the indicators have basically reached the surface Water-like standards. The results prove that this method can effectively reduce the pollution load of low-pollution water entering the ecotone.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a sector-shaped multi-dimensional cross-flow type composite terrestrial plant buffer zone and a construction method thereof. The buffer zone is formed by connecting a sector-shaped transverse-flow herb-biochar zone, a sector-shaped longitudinal-flow denitrification zone, a sector-shaped transverse-circular-flow pollutant enrichment shrub-herb zone, a sector-shaped longitudinal-flow dephosphorization zone, a sector-shaped transverse-circular-flow tree-herb-biochar zone as well as necessary ridges, braiding channels or water-permeable walls in series. Low-concentration wastewater such as tail water of urban sewage treatment plants, agricultural wastewater, surface runoff of villages and small towns and the like sequentially flows through the zones after simple sedimentation, and suspended matters, organic matters, nutrient elements, pesticides and the like in the wastewater are gradually reduced. The vegetation buffer zone is applicable to peripheries of reservoirs, rivers or lakes with limited shore land areas and can effectively prevent water environment pollution; native plants are combined harmoniously, so that the buffer zone has the good treatment effect as well as the good landscape effect, the good ecological benefit and high popularization and application values.

Description

technical field [0001] The invention belongs to the technical field of water pollution control and ecological restoration, and specifically relates to a fan-shaped multi-dimensional cross-flow composite terrestrial plant buffer zone and a construction method thereof. Background technique [0002] As an ecological engineering unit for protecting water bodies, the water-land ecotone can intercept suspended solids entering lakes, reservoirs, rivers and other waters, remove nitrogen and phosphorus nutrients, degrade pesticides, and ensure the quality of the water environment. At the same time, the water-land ecotone is also an important part of regional nutrient management, soil erosion control, and protection of freshwater resources and environments. It plays an important corridor and filter for material circulation, energy flow, information transmission, and biological flow between land and water ecosystems. It plays a decisive role in the stable development of the regional ec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F3/32
CPCC02F3/327C02F2103/007C02F2301/00C02F2303/20C02F2305/00Y02W10/10
Inventor 王毅力斯豪文胡威
Owner BEIJING FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap