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Multi-functional electrochemical coupling ecological floating bed

An ecological floating bed and electrochemical technology, which is applied in the direction of electrochemical and biological combination treatment, chemical instruments and methods, multi-stage water treatment, etc., can solve the problems of poor turbidity control effect, low removal rate and odor in the ecological floating bed system. The problem of low material removal efficiency can be achieved to improve the effect of purifying pollutants, reduce the degree of eutrophication, and improve the effect of transparency and turbidity

Pending Publication Date: 2021-12-31
GUOHE ENVIRONMENTAL RES INST (NANJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ecological floating bed mainly realizes the removal of conventional pollutants through the root adsorption of aquatic plants, plant absorption, and plant surface biofilm attachment, but the removal efficiency of typical odor substances in water is very low.
Moreover, restricted by factors such as floating bed structure and plant function, the ecological floating bed system is not effective in controlling turbidity in water, and the removal rate of conventional pollutants such as COD, nitrogen, and phosphorus is not high.

Method used

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  • Multi-functional electrochemical coupling ecological floating bed
  • Multi-functional electrochemical coupling ecological floating bed
  • Multi-functional electrochemical coupling ecological floating bed

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Effect test

Embodiment 1

[0034] Figure 1~2 It is a schematic structural view and a schematic sectional view of the ecological floating bed of the present invention, image 3 It is a schematic diagram of the water flow direction of the right half of the ecological floating bed of the present invention, and the water flow direction of the left half is the same as that of the right half. As can be seen from the figure, the multifunctional electrochemically coupled ecological floating bed for eliminating black and odorous water bodies according to the present invention is in a gyroscope structure, and a cylindrical aerobic bed and an anoxic bed are arranged around the central axis 6 from top to bottom. 2 and the cavity 4, the anoxic bed 2 and the periphery of the cavity 4 are respectively provided with a filter tank 3 and a sedimentation tank 5 which communicate with each other.

[0035] The cavity 4 of the ecological floating bed is located at the center of the bottom, and the inside is closed and dry,...

Embodiment 2

[0040] This embodiment further illustrates the ecological floating bed of the present invention from the perspective of eliminating black and odorous water bodies:

[0041]The water pump 16 transports the sewage in the river water to the top aerobic bed 1a, and then the sewage enters the second aerobic bed 1b and the third aerobic bed 1c through the diversion wall. In an aerobic environment, a large number of biofilms were attached to the surface of the mixed filler A and the roots of aquatic plants 7 in the aerobic bed, and nitrifying bacteria could convert ammonia nitrogen into nitrate nitrogen. In addition, the iron in the mixed filler A is the anode, and the carbon is the cathode to form a primary battery, which generates a micro-current to stimulate the metabolic activities of good microorganisms, and uses the life activities of microorganisms such as oxidation, reduction and synthesis to degrade the odor and smell substances in the water.

[0042] At the same time, the i...

Embodiment 3

[0048] In the present embodiment, the ecological floating bed adopting common filler is used as a control group, and the multifunctional electrochemical coupling ecological floating bed is a test group in the present invention, and the effect of the multifunctional electrochemical coupling ecological floating bed of the present invention on geosmin and dimethylformamide in water has been investigated. Adsorption and degradation effects of isobutynol, ammonia nitrogen and total phosphorus.

[0049] Water samples from the same river were taken to determine the content of geosmin, dimethylisoalcohol, ammonia nitrogen and total phosphorus in the water samples. Then be about to water sample to use traditional ecological floating bed and ecological floating bed of the present invention to process respectively, the water sample that obtains after processing 24h carries out the mensuration of geosmin, dimethyl isobutyritol, ammonia nitrogen and total phosphorus equally, compares and ca...

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Abstract

The invention provides a multi-functional electrochemical coupling ecological floating bed, and belongs to the field of water pollution control. In the invention, multiple principles in physics, biology, electrochemistry and other subjects are applied to design the multi-functional electrochemical coupling ecological floating bed for eliminating black and odorous water. A combined process flow is formed by coupling iron-carbon micro-electrolysis, bionic oxygenation, activated carbon adsorption, sulfur autotrophic denitrification and inclined tube precipitation process units, and odor substances in the water can be effectively removed. Moreover, as water discharged by the floating bed is falling water, the dissolved oxygen concentration of river water is increased, the subsequent self-cleaning capacity of the river is improved, and meanwhile, a small waterfall landscape is formed.

Description

technical field [0001] The invention belongs to the field of water pollution control, and in particular relates to a multifunctional electrochemical coupling ecological floating bed. Background technique [0002] At present, the treatment of black and odorous water bodies in my country usually adopts methods such as source control, pollution interception and enhanced purification to reduce the concentration of pollutants in water bodies that cause black and odorous water bodies, so as to achieve the effect of eliminating black and odorous water bodies. However, in addition to these conventional pollutants, there are also odor substances such as sulfide and geosmin in the water body, which have a low odor threshold and cause bad sensory experience for residents around the water body. [0003] Because of its convenient use, low cost and good landscape effect, the ecological floating bed has been widely used in surface water purification and ecological restoration projects. Th...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34C02F3/30C02F3/00C02F9/14C02F101/10C02F101/16C02F101/30C02F101/38
CPCC02F3/32C02F3/34C02F3/30C02F3/005C02F9/00C02F2101/105C02F2101/16C02F2101/30C02F2101/38C02F2103/007C02F2301/08C02F2303/02C02F1/283C02F1/001C02F2001/007
Inventor 冯骞佘雨薇薛朝霞操家顺方芳罗景阳李超郑笛
Owner GUOHE ENVIRONMENTAL RES INST (NANJING) CO LTD
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