A three-dimensional artificial sewage purification floating island

A kind of sewage purification and artificial technology, applied in the field of water treatment, can solve the problems of low decontamination efficiency, difficult to move, difficult for plants to be in good condition, etc., achieve good adsorption effect, good air permeability and water permeability, and conducive to plant growth Effect

Active Publication Date: 2021-06-25
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in traditional artificial wetland systems, it is difficult for plants to grow in good condition; wetland systems are generally placed in a certain position and difficult to move; and most of the plants grow because plant roots directly absorb nutrients from the water to decontaminate, and the decontamination efficiency is not high.

Method used

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  • A three-dimensional artificial sewage purification floating island
  • A three-dimensional artificial sewage purification floating island
  • A three-dimensional artificial sewage purification floating island

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A three-dimensional artificial sewage purification floating island, including a wetland main body 1 arranged on a water body, the wetland main body includes a base 2, and the base 2 is composed of several modules, which can be assembled, replaced, disassembled or Maintenance, etc. Emergent plants 3 are planted on the base 2, and the first non-woven fabric layer, the matrix material layer and the second non-woven fabric layer are laid sequentially from top to bottom in the base without intervals. The three-dimensional artificial sewage purification floating island also includes a motor 4, the motor 4 is connected to the wetland main body 1 to drive the artificial wetland to move, and the wetland main body 1 is provided with a solar photovoltaic panel 5 and a storage battery (not shown in the figure) , the solar photovoltaic panel 5 is arranged on a corner of the main body of the wetland through a bracket 7, the solar photovoltaic panel 5 is electrically connected to the i...

Embodiment 2

[0036] This example is used to illustrate the preparation of the self-made matrix of the present invention.

[0037] The matrix of the matrix material layer is obtained by the following method, and the specific preparation steps include:

[0038] 1) Prepare a calcium chloride solution with a concentration of 0.01-0.02mol / L, add activated alumina to the calcium chloride solution and impregnate it for the first time;

[0039]2) filtering off the calcium chloride solution to obtain the activated alumina impregnated for the first time, drying for the first time and calcining for the first time to obtain the activated alumina calcined for the first time;

[0040] 3) preparing an aluminum nitrate solution with a concentration of 0.03-1.0 mol / L, adding the activated alumina calcined for the first time and impregnating it for the second time;

[0041] d) filtering off the aluminum nitrate solution to obtain secondary impregnated activated alumina, drying and calcining the secondary i...

Embodiment 3

[0068] A rectangular FRP (length 50cm, width 30cm, height 20cm) device was used to simulate the artificial sewage purification floating island, and the temperature and light were basically the same as the natural environment during the test. The wetland plants used reeds and planted 10 to 12 plants.

[0069] The bottom of the FRP device is laid with the first non-woven fabric layer (thickness about 10mm), matrix material layer (thickness 10-15mm) and second non-woven fabric layer (thickness about 10mm) without intervals from top to bottom.

[0070] The pH of the raw water body is 9, the total phosphorus content is 3.12mg / L, intermittent water intake is adopted, the water intake is 7L, and the system has been running for 1 month and 2 months. The results are shown in the following table:

[0071] matrix 1 month total phosphorus removal rate (%) 2-month total phosphorus removal rate (%) Substrate 1 (from Example 2) 92.3 92 Substrate 2 (from Example 2) 9...

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Abstract

The application relates to the technical field of water treatment, and discloses a three-dimensional artificial sewage purification floating island, which includes a wetland main body arranged on a water body, and the wetland main body includes a base composed of several modules, on which there are planted For water plants, a first non-woven fabric layer, a matrix material layer and a second non-woven fabric layer are sequentially laid in the base from top to bottom without intervals. In this application, non-woven fabric layers are respectively arranged on the upper and lower sides of the matrix material layer. The non-woven fabric has good air permeability and water permeability, and has a certain heat preservation effect, which can better maintain the good breathing of the plant root system and is beneficial to plant growth. ; This application also provides electric energy for the motor by setting solar photovoltaic panels, which is clean and environmentally friendly, and it is more convenient and quick to move the artificial wetland through the motor. In particular, the use of self-made substrates has high phosphorus removal efficiency and wide application range.

Description

technical field [0001] The application relates to the technical field of water treatment, in particular to a three-dimensional artificial sewage purification floating island. Background technique [0002] Constructed wetland systems have been widely used in sewage treatment, especially in the restoration of polluted surface water such as rivers, lakes and other water environments, due to their advantages in water quality purification, landscape improvement, biological habitat acceptance, and wave absorption and revetment. . After decades of research and development, the technology of how to build artificial floating islands is relatively mature. For example, Chinese patent CN1620862A discloses a method for building plant floating islands. First, a flat-bottomed pool-shaped production site of a certain specification is established outside the construction area. The floating island skeleton is erected in the production site, and the plant growth substrate is filled in it, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCC02F3/32
Inventor 陈俊金杰卫新来王磊张勇鲍腾吴克俞志敏
Owner HEFEI UNIV
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