Light conduction biological filler unit for water treatment

Abstract

The invention discloses a light conduction biological filler unit for water treatment, and relates to the technical field of sewage treatment.The light conduction biological filler unit comprises a light guiding component, a light shading component, light guiding components and biological attachments, the light shading component is installed at the bottom of the light guiding component, the light guiding components are arranged in the light shading component and inserted into water, and the biological attachments are arranged on the light guiding components. Biological attachments are attached to the surface of the light guide part, and the shading part is fixed to the water surface. According to the invention, light is input into water along with the light guide body, and the directions of nitrification and denitrification reactions are controlled by utilizing the promotion or inhibition effects of nitrifying bacteria and denitrifying bacteria under different illumination, so that the dependence on mechanical aeration is reduced, and pollutants in sewage are removed. Meanwhile, the thin optical fiber can also be used as a biological bed, photophilous microorganisms can grow on the surface of the optical fiber, and photosynthesis can also be realized in a deep water area in a biochemical pool, so that the removal rate of pollutants in sewage is further accelerated, the metabolic activity of algae can be improved, and an energy-saving effect is realized.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a light-conducting biological filler unit for water treatment. Background Art

[0002] ‌Microbial wastewater treatment refers to a method of using the life activities of microorganisms to remove organic pollutants in wastewater and purify the water. This method mainly degrades organic matter in wastewater and converts it into harmless substances through the metabolic function of microorganisms. Microbial wastewater treatment technology is highly favored due to its advantages such as low consumption, high efficiency, low cost, easy operation and management, and no secondary pollution.‌ At present, the main principle of sewage treatment is to use the amount of oxygen to adjust the living environment of microorganisms in the water, so as to inhibit or promote the activity of nitrifying bacteria under different oxygen contents, thereby carrying out nitrification and denitrification reactions to remove pollutants in sewage.

[0003] However, this method consumes a lot of energy in the aerobic stage to inject a large amount of air to increase the oxygen content in the water, and builds a larger reaction tank in the denitrification stage at the end to achieve a higher residence time to achieve oxygen removal, thereby inhibiting nitrification reaction and achieving denitrification reaction. Summary of the invention

[0004] The purpose of the present invention is to provide a light-conducting biological filler unit for water treatment, which can remove pollutants in sewage by nitrification and denitrification reactions by inputting light into water along with a light guide and utilizing the promotion or inhibition effect of nitrifying bacteria and denitrifying bacteria under different light illumination. At the same time, the thin optical fiber can also be used as a biological bed, and light-loving microorganisms can grow on the surface of the optical fiber. Under photosynthesis, the removal rate of pollutants in sewage is further accelerated, so as to solve the problems of low efficiency of existing sewage treatment and high aeration energy consumption proposed in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A light-conducting biological filler unit for water treatment comprises a light-guiding component, a light-shielding component, a light-guiding component and biological attachments. A light-shielding component is installed at the bottom of the light-guiding component, a plurality of light-guiding components are arranged inside the light-shielding component, the light-guiding component is inserted into water, biological attachments are attached to the surface of the light-guiding component, and the light-shielding component floats on the water surface.

[0006] As a further solution of the present invention: the light guide component is made of quartz glass material or PC or PMMA or ABS light guide material mixed with 0.5%-0.8% organic silicon to produce a light guide fiber with a diameter between 0.01-2.5 mm and uniform light diffusion.

[0007] As a further solution of the present invention: the shading component uses epoxy resin to orient and fix the light-guiding fiber.

[0008] As a further solution of the present invention: the length and distribution of the light-guiding component can be adjusted to H-1m according to the pool depth H and the state of the microorganisms.

[0009] As a further solution of the present invention: the light-guiding component introduces light with a light radiation of 100-2000 μmol·m-2·s-1 into the water.

[0010] As a further solution of the present invention: the light-guiding component is a convex lens.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the thin diameter (large surface area), high tensile strength and light-guiding properties of the light-guiding material to increase the biobed in water treatment, which can increase the bioload of the biochemical pool by more than 2 times, regulate the activity of microorganisms in the biochemical section, and save more than 30% of aeration energy consumption.

[0012] The present invention can also introduce new light-loving microorganisms to grow on the surface of the light-guiding material, further promoting the sewage treatment efficiency, from relying solely on aeration to cultivate microorganisms to using light energy to further accelerate the degradation of pollutants in the water.

[0013] 3. When biological attachments grow more on the light-guiding component of the present invention, resulting in an increase in the weight of the light-guiding component and the light-guiding component cannot float, a large amount of ultraviolet light can be introduced through the light-guiding component to inhibit or remove surface microorganisms. At the same time, it can also be used for terminal sewage disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the overall structure of the light-conducting biological filler unit for water treatment.

[0015] Figure 2 This is a cross-sectional view of the light-guiding component structure of a light-conducting biological filler unit for water treatment.

[0016] 1. Light-guiding component; 2. Light-shielding component; 3. Light-guiding component; 4. Biological attachments. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-2 In an embodiment of the present invention, the light-conducting biological filler unit for water treatment includes a light-guiding component 1, a light-shielding component 2, a light-guiding component 3 and biological attachments 4. The light-guiding component 1 is installed with a light-shielding component 2 at the bottom. The light-shielding component 2 is made of polyethylene or PVC that can float on the water surface. A plurality of light-guiding components 3 are arranged in the light-shielding component 2. The light-guiding component 3 is inserted into the water. The biological attachments 4 are attached to the surface of the light-guiding component 3. The light-shielding component 2 floats on the water surface. The present invention has evolved from relying solely on aeration to cultivate microorganisms to using light energy to further accelerate the degradation of pollutants in the water.

[0019] The light guide component 3 is made of quartz glass material or PC, PMMA, ABS light guide material mixed with 0.5%-0.8% silicone (0.5%-0.8% is the mass fraction ratio: that is, the ratio of the mass of silicone to the mass of the light guide material, and the silicone and the light guide material are mixed evenly), and is made into a light guide fiber with a diameter between 0.01-2.5mm and uniform light diffusion.

[0020] The light-shielding component 2 uses epoxy resin to orient and fix the light-guiding fiber, so as to ensure that the light introduced from the light-guiding component 1 can be directed to the light-guiding component 3 and evenly scattered in the water.

[0021] The length and distribution of the light-guiding component 3 can be adjusted to H-1m according to the pool depth H and the state of the microorganisms. The pool depth H is the depth of the biochemical pool / reaction pool (the maximum height of the water surface of the sewage contained in the biochemical pool / reaction pool from the bottom of the biochemical pool / reaction pool, 0<H<1m). This can reduce wear and reduce entanglement.

[0022] The light guide component 3 introduces 100-2000 μmol·m−2·s−1 light radiation into the water, achieving the inhibitory effect on nitrifying bacteria or denitrifying bacteria, while stimulating the growth of AOB in attached microorganisms and improving the metabolic activity of algae, thereby reducing dependence on mechanical aeration and achieving energy saving effects.

[0023] The light-guiding component 1 is a convex lens, through which sunlight or light emitted by a luminous body can be gathered onto the light-guiding component 3 .

[0024] The working principle of the present invention is: when light is irradiated onto the light-guiding component 1, the light-guiding component 1 gathers the light onto the light-guiding component 3 in the light-shielding component 2, and then introduces 100-2000 μmol·m−2·s−1 of light radiation into the water through the light-guiding component 3, and introduces the radiation light into the water through the light-guiding component 3 to achieve the inhibition effect on nitrifying bacteria or denitrifying bacteria, and perform nitrification and denitrification reactions to remove pollutants in sewage, and emit them on the surface of the light-guiding fiber. After being irradiated with light, the microorganisms in the water attach and grow on the surface of the optical fiber, and can improve the metabolic activity of algae, thereby reducing the dependence on mechanical aeration and achieving energy-saving effects. When the biological attachments 4 on the light-guiding component 3 grow more, resulting in an increase in the weight of the light-guiding component 3 and the inability to float, a large amount of ultraviolet light can be introduced through the light-guiding component 1, thereby achieving the inhibition or removal of surface microorganisms. At the same time, it can also be used for terminal sewage disinfection.

[0025] In summary, the present invention controls the direction of nitrification and denitrification reactions by inputting light into the water along with the light guide, utilizing the promotion or inhibition effect of nitrifying bacteria and denitrifying bacteria under different light illumination, thereby reducing the reliance on mechanical aeration and achieving the removal of pollutants in sewage. At the same time, the thin optical fiber can also be used as a biological bed, and light-loving microorganisms can grow on the surface of the optical fiber, and photosynthesis can also be achieved in the deep water area of ​​the biochemical pool, thereby further accelerating the removal rate of pollutants in sewage, improving the metabolic activity of algae, and achieving energy-saving effects.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A light-conducting biological filler unit for water treatment, comprising a light-guiding component (1), a light-shielding component (2), a light-guiding component (3) and biological attachments (4), characterized in that: A light shielding component (2) is installed at the bottom of the light-guiding component (1), a plurality of light-guiding components (3) are arranged inside the light-guiding component (2), the light-guiding component (3) is inserted into the water, biological attachments (4) are attached to the surface of the light-guiding component (3), and the light-shielding component (2) floats on the water surface.

2. The light-conducting biological filler unit for water treatment according to claim 1, characterized in that: The light guide component (3) is made of quartz glass material or PC or PMMA or ABS light guide material mixed with 0.5%-0.8% organic silicon, and is made into a light guide fiber with a diameter between 0.01 and 2.5 mm and uniform light diffusion.

3. The light-conducting biological filler unit for water treatment according to claim 1, characterized in that: The shading component (2) uses epoxy resin to orient and fix the light-guiding fiber.

4. The light-conducting biological filler unit for water treatment according to claim 1, characterized in that: The length and distribution of the light guide component (3) can be adjusted to H-1m according to the pool depth H and the state of the microorganisms.

5. The light-conducting biological filler unit for water treatment according to claim 1, characterized in that: The light guide component (3) guides light having a light radiation of 100-2000 μmol·m-2·s-1 into water.

6. The light-conducting biological filler unit for water treatment according to claim 1, characterized in that: The light-guiding component (1) is a convex lens.

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