Method for plant arrangement of vertical flow and horizontal subsurface flow combined artificial wetland

A technology of vertical flow wetland and horizontal subsurface flow, applied in the field of plant configuration of vertical flow-horizontal subsurface flow composite constructed wetland, can solve the problems of poor landscape effect, single treatment effect, limited adsorption and purification effect, etc., and achieve low cost and good landscape effect. , the effect of fast plant growth

Inactive Publication Date: 2010-07-21
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These plants have limited adsorption and purification effects on industrial wastewater, especially wastewater with a high content of heavy metal ions, and in practical applications, they are often planted in plots with a certain plant as the unit, with single treatment effect and poor landscape effect

Method used

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  • Method for plant arrangement of vertical flow and horizontal subsurface flow combined artificial wetland
  • Method for plant arrangement of vertical flow and horizontal subsurface flow combined artificial wetland
  • Method for plant arrangement of vertical flow and horizontal subsurface flow combined artificial wetland

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Aiming at the industrial wastewater treatment of an electroplating factory in Baoding, in the existing ordinary vertical flow-horizontal subsurface flow composite artificial wetland, reeds were selected to be planted in the horizontal subsurface flow wetland pool, and chrysanthemum, centipede grass, and Sedum sedum were planted in the vertical flow In the wetland pool, the ratio of the planting quantity of plants in the horizontal subsurface flow wetland pool to the vertical flow wetland pool is 1:1.5. After the preparation of the plant bed is completed, some water hyacinths will be added after the water is stored. For COD, Cr, Zn, Fe, Mn removal efficiency reached 76%, 80%, 81%, 76%, 86%.

Embodiment 2

[0027] For the treatment of industrial wastewater in an electroplating factory in Baoding, in the existing common vertical flow-horizontal subsurface flow composite artificial wetland, reeds and cannas were selected to be planted in the horizontal subsurface flow wetland pool, and azulene, Indian mustard, windmill grass, and millet were selected. Echinacea was planted in the vertical flow wetland pool, and the planting ratio of the plants in the horizontal subsurface flow wetland pool and the vertical flow wetland pool was 1:2. The plant bed preparation was completed, and some water hyacinths were added after the water was stored. For COD, Cr, Zn, Fe, Mn removal efficiency reached 71%, 83%, 76%, 80%, 72%.

Embodiment 3

[0029] For the treatment of industrial wastewater in a certain electroplating factory in Baoding, in the vertical flow-horizontal subsurface flow composite artificial wetland provided by the present invention, reeds are selected to be planted in the horizontal subsurface flow wetland pool, and chrysanthemum, centipede grass, and Sedum sedum are selected to be planted in the vertical flow In the wetland pool, the ratio of the planting quantity of plants in the horizontal subsurface flow wetland pool to the vertical flow wetland pool is 1:1.5. After the preparation of the plant bed is completed, some water hyacinths will be added after the water is stored. For COD, Cr, Zn, Fe, Mn removal efficiency reached 85%, 90%, 92%, 82%, 94%.

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Abstract

The invention discloses a method for the plant arrangement of a vertical flow and horizontal subsurface flow combined artificial wetland. By adopting the method, good landscape effect and good sewage treatment effect are obtained. The horizontal subsurface flow wetland pool of the vertical flow and horizontal subsurface flow combined artificial wetland can be used for planting any one or more of the following plants: reeds, Cannan indiea, myrtles, ciliate desert grass, pokeberry, Leersia hexandra, Cyperusalternifolius and Indian mustard plants; the vertical flow wetland pool of the vertical flow and horizontal subsurface flow combined artificial wetland can be used for planting any one or more of the following plants: Juncus bufonius, willow herb, Sedum alfredii Hance, Thlaspi caerulescens, ryegrass, myrtle, ciliate desert grass, pokeberry, Leersia hexandra, Cyperusalternifolius and Indian mustard plants; the ratio of the number of plants of the vertical flow wetland pool to the number of plants of the horizontal subsurface flow wetland pool is 1:1.5-2, and after water is impounded, floating plants such as water lily and / or water hyacinth are planted on the water surface of the vertical flow wetland pool. The invention has the advantages of low cost, high treatment efficiency, easy growth and good landscape effect.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a plant configuration method applied to vertical flow-horizontal subsurface flow composite constructed wetlands. Background technique [0002] With the rapid development of my country's social economy and the acceleration of urbanization, on the one hand, the contradiction between urban water supply and demand has become increasingly prominent; Constructed wetland technology is an ecological sewage treatment technology developed in the 1970s, which uses engineering measures to simulate the ecosystem built by natural wetlands. Constructed wetlands are mainly composed of substrates, plants, and microorganisms. It mainly uses the physical, chemical, and biological triple synergies of substrate-aquatic plants-microbes in the system to achieve filtration, adsorption, ion exchange, plant absorption, and microbial decomposition. Efficient purification of sewage....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/34
Inventor 王崇宇贾柠宁卢丽杰李楠苏航吕康乐邢文超王寅陈寅嵩沈文佳路雯潇
Owner HEBEI AGRICULTURAL UNIV.
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