Method for strengthening phosphorus removal efficiency of constructed wetlands on basis of plant root system

A technology for artificial wetlands and plant roots, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of the small number and types of microorganisms in the root system, and poor plant absorption and transformation effects , to achieve the effect of improving the richness and diversity of microorganisms, good landscape effects, and shortening the adaptation period

Inactive Publication Date: 2019-03-08
北京东方利禾景观设计有限公司
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of poor plant absorption and transformation effect in the existing artificial wetland technology, less types and quantities of microorganisms in the root system, and matrix saturation mainly relying on matrix for phosphorus removal, and provide a plant with strong pollution resistance and The root system microbial richness and diversity are improved, the water body restoration effect is good, the cost is low, and the ecological environment is based on the method of plant root system to strengthen the phosphorus removal of artificial wetland, and it also provides a plant root system with simple steps, convenient operation and low production cost A Combined Approach to Systematic Expansion and Induced Iron Mantle Formation on Root Surfaces

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  • Method for strengthening phosphorus removal efficiency of constructed wetlands on basis of plant root system
  • Method for strengthening phosphorus removal efficiency of constructed wetlands on basis of plant root system
  • Method for strengthening phosphorus removal efficiency of constructed wetlands on basis of plant root system

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Embodiment 1

[0059] In this embodiment, first, the expansion of the plant root system and the rejuvenation of the damaged root system are carried out through the hairy root induction solution containing rooting powder, so as to produce a root system with well-developed root system, abundant quantity, and good root system; The system induces the iron film on the surface of the root system.

[0060] In this embodiment, the steps of expanding the plant root system and inducing the formation of an iron film on the surface of the root system are as follows:

[0061](1) Root system expansion: carried out in a PVC constructed wetland bed of 1.5m×1.5m×0.5m, planting 20 plants in the constructed wetland bed (the planting density is 16 plants / m 2 ) Bulbous rushes, gravels with a particle size of 3-5 cm are filled into the 15 cm at both ends of the bed as the water distribution and water collection areas, and the middle part is filled with zeolite and ceramsite as the matrix, with a height of 45 cm; ...

Embodiment 2

[0072] In this embodiment, first, the expansion of the plant root system and the rejuvenation of the damaged root system are carried out through the hairy root induction solution containing rooting powder, so as to produce a root system with well-developed root system, abundant quantity, and good root system; The system induces the iron film on the surface of the root system.

[0073] In this embodiment, the steps of expanding the plant root system and inducing the formation of an iron film on the surface of the root system are as follows:

[0074] (1) Root system expansion: carried out in a PVC constructed wetland bed of 1.5m×1.5m×0.5m, planting 20 plants in the constructed wetland bed (the planting density is 16 plants / m 2 ) Bulbous rushes, gravels with a particle size of 3-5 cm are filled into the 15 cm at both ends of the bed as the water distribution and water collection areas, and the middle part is filled with zeolite and ceramsite as the matrix, with a height of 45 cm;...

Embodiment 3

[0082] In this embodiment, first, the expansion of the plant root system and the rejuvenation of the damaged root system are carried out through the hairy root induction solution containing rooting powder, so as to produce a root system with well-developed root system, abundant quantity, and good root system; The system induces the iron film on the surface of the root system.

[0083] In this embodiment, the steps of expanding the plant root system and inducing the formation of an iron film on the surface of the root system are as follows:

[0084] (1) Root system expansion: carried out in a PVC constructed wetland bed of 1.5m×1.5m×0.5m, planting 20 plants in the constructed wetland bed (the planting density is 16 plants / m 2 ) Bulbous rushes, gravels with a particle size of 3-5 cm are filled into the 15 cm at both ends of the bed as the water distribution and water collection areas, and the middle part is filled with zeolite and ceramsite as the matrix, with a height of 45 cm;...

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Abstract

The invention relates to a method for strengthening phosphorus removal efficiency of constructed wetlands on the basis of a plant root system. Firstly, amplification of a plant root system and rejuvenation of damaged roots of the plant root system are carried out by hair root induction liquid containing rooting powder so as to generate a root system which is developed in root, rich in root numberand excellent in root, then the amplified root system is subjected to induction of a root surface iron film, and bulbiform junci medulla cultured and treated in the constructed wetlands are used for sewage treatment, so that phosphorus removal efficiency can be strengthened. According to the invention, microorganism richness and diversity of the plant root system can be promoted; performance of aphosphorus removal biochemical reaction is promoted; the root surface iron film can be used as a storage library of plant nutrient elements so as to improve stress resistance and environmental adaptability of plants; the method not only is simple in process, simple to operate, low in cost and convenient to carry out large-scale popularization and application and has excellent economic, environmental and ecological benefits, but also can obtain an excellent landscape effect.

Description

technical field [0001] The invention relates to the field of ecological treatment of polluted water bodies, in particular to a method for enhancing the phosphorus removal efficiency of constructed wetlands based on plant root system, especially a method for inducing the formation of iron film on the surface of bulbous rush root system and enhancing the phosphorus removal efficiency of artificial wetlands method. Background technique [0002] Constructed wetlands are mainly composed of aquatic plant combinations and matrix materials, and purify water quality through the synergy of physics, chemistry and microorganisms. At present, there are many types of pollutants that can be removed by using the constructed wetland system. It can not only remove conventional pollutants in general urban domestic sewage, but also remove some refractory organic pollutants, including phenolic wastewater, polycyclic aromatic hydrocarbons, etc. , petroleum alkanes and other toxic and harmful sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34
CPCC02F3/32C02F3/34
Inventor 陈国敏樊蓓莉张凯
Owner 北京东方利禾景观设计有限公司
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