Printing and dyeing wastewater treatment device and treatment method

Abstract

The invention discloses a printing and dyeing wastewater treatment device and treatment method, and belongs to the field of wastewater treatment. The printing and dyeing wastewater treatment device comprises an aquatic plant reactor and a soil plant reactor. The biological repair and purification functions of aquatic plants and seedling nursery plants on a water body are organically combined; themicroflora and metabolic function level in a system can be improved; the combined action of plants, plant rhizospheric microorganisms and filter materials is synthesized; the synergistic effects of plants, microorganisms and environment are fully exerted; in the operation process, denitrification flora and electrogenesis flora simultaneously exist; the dye and other contaminants in the printing and dyeing wastewater are synergistically degraded; on the basis, the indexes such as printing and dyeing wastewater chroma are reduced; the goal of purifying the water body is realized. The treatment device and the treatment method have the advantages that the structure is simple; the design is reasonable; the operation is easy; the purification effect is good.

Description

technical field

[0001] The invention belongs to the field of wastewater treatment. More specifically, it relates to a printing and dyeing wastewater treatment device and treatment method. Background technique

[0002] The wastewater discharged by the printing and dyeing industry is one of the pollution sources of water resources. It contains high content of refractory organic matter and inorganic salts, high chromaticity value, and poor biodegradability, which will aggravate the pollution of water and soil. Especially in recent years, due to the needs of the printing and dyeing industry, dyes are developing in the direction of anti-photolysis, anti-oxidation, and anti-degradation, which has led to a sharp increase in the chemical oxygen demand (COD) value of printing and dyeing wastewater, making treatment more difficult. What's more serious is that the nitrogen dyes, anthraquinone dyes, and triphenylmethane dyes involved in the printing and dyeing industry have all been fo...

Examples

Embodiment 1

[0039] Such as figure 1 and figure 2 As shown, a printing and dyeing wastewater treatment device includes an aquatic plant reactor 1, a circulating water pipe, and a soil plant reactor 13; the lower part of the aquatic plant reactor 1 is provided with a primary water outlet 19 and a water return port 20; the soil The bottom of the plant reactor 13 is provided with a secondary water outlet 21; the circulating water pipe includes a water inlet pipe 18 and a water return pipe 16; the water inlet pipe 18 is connected with the primary water outlet 19 and the soil plant reactor 13; The water return pipe 16 is connected with the secondary water outlet 21 and the water return port 20; the water inlet pipe 18 is provided with a peristaltic pump 15; the return pipe 16 is provided with a return pump 14. The aquatic plant reactor 1 and the soil plant reactor 13 are the cores to realize water body purification, and the return pump 15 and the peristaltic pump 14 are the driving components...

Embodiment 2

[0051] The difference between this embodiment and Example 1 is that the aquatic plant reactor 1 is a plexiglass cuboid, and the aquatic plants in it are selected from water hyacinth, and its surface coverage area is 75%, which is used for hanging water hyacinth. The wire mesh is located at 4cm below the water inlet 3 of the aquatic plant reactor, and the mesh aperture is 0.1cm. The soil plant reactor 13 is a plexiglass cuboid, and the drip irrigation pipeline 5 provided on the soil plant reactor 13 is an inlaid drip irrigation with a pipe diameter of 12mm, and drip holes are set every 30cm on the drip irrigation; sweet potatoes, high-quality coconut palms are planted in the plant layer 6 The shell activated carbon layer 8 is filled with high-quality coconut shell activated carbon with a particle size of 4-12 mm, the gravel filler layer 9 is filled with small gravel with a particle size of 10-25 mm, and the gravel filler layer 2 10 is filled with small gravel with a particle siz...

Embodiment 3

[0062] This embodiment has been further optimized on the basis of Example 2. The aquatic plants in the aquatic plant reactor 1 are Elodea and reeds, and the surface coverage of the plants is 80%. The barbed wire for hanging plants is located in the aquatic plant reactor. 5cm below the device water inlet 3, the mesh aperture is 1cm. The drip irrigation pipeline 5 provided on the soil plant reactor 13 is an inlaid drip irrigation with a pipe diameter of 16 mm, drip holes are set every 70 cm on the drip irrigation, potatoes and sweet potatoes are planted in the plant layer 6, and grains are filled in the high-quality coconut shell activated carbon layer 8. High-quality coconut shell activated carbon with a diameter of 6-10mm, gravel filler layer 1 9 is filled with small gravels with a particle size of 15-20mm, gravel filler layer 2 10 is filled with large gravels with a particle size of 25-35mm; iron grid The bar spacing is 20mm.

[0063] The purification method of printing and ...

technical field

[0001] The invention belongs to the field of wastewater treatment. More specifically, it relates to a printing and dyeing wastewater treatment device and treatment method. Background technique

[0002] The wastewater discharged by the printing and dyeing industry is one of the pollution sources of water resources. It contains high content of refractory organic matter and inorganic salts, high chromaticity value, and poor biodegradability, which will aggravate the pollution of water and soil. Especially in recent years, due to the needs of the printing and dyeing industry, dyes are developing in the direction of anti-photolysis, anti-oxidation, and anti-degradation, which has led to a sharp increase in the chemical oxygen demand (COD) value of printing and dyeing wastewater, making treatment more difficult. What's more serious is that the nitrogen dyes, anthraquinone dyes, and triphenylmethane dyes involved in the printing and dyeing industry have all been fo...

Examples

Embodiment 1

[0039] Such as figure 1 and figure 2 As shown, a printing and dyeing wastewater treatment device includes an aquatic plant reactor 1, a circulating water pipe, and a soil plant reactor 13; the lower part of the aquatic plant reactor 1 is provided with a primary water outlet 19 and a water return port 20; the soil The bottom of the plant reactor 13 is provided with a secondary water outlet 21; the circulating water pipe includes a water inlet pipe 18 and a water return pipe 16; the water inlet pipe 18 is connected with the primary water outlet 19 and the soil plant reactor 13; The water return pipe 16 is connected with the secondary water outlet 21 and the water return port 20; the water inlet pipe 18 is provided with a peristaltic pump 15; the return pipe 16 is provided with a return pump 14. The aquatic plant reactor 1 and the soil plant reactor 13 are the cores to realize water body purification, and the return pump 15 and the peristaltic pump 14 are the driving components...

Embodiment 2

[0051] The difference between this embodiment and Example 1 is that the aquatic plant reactor 1 is a plexiglass cuboid, and the aquatic plants in it are selected from water hyacinth, and its surface coverage area is 75%, which is used for hanging water hyacinth. The wire mesh is located at 4cm below the water inlet 3 of the aquatic plant reactor, and the mesh aperture is 0.1cm. The soil plant reactor 13 is a plexiglass cuboid, and the drip irrigation pipeline 5 provided on the soil plant reactor 13 is an inlaid drip irrigation with a pipe diameter of 12mm, and drip holes are set every 30cm on the drip irrigation; sweet potatoes, high-quality coconut palms are planted in the plant layer 6 The shell activated carbon layer 8 is filled with high-quality coconut shell activated carbon with a particle size of 4-12 mm, the gravel filler layer 9 is filled with small gravel with a particle size of 10-25 mm, and the gravel filler layer 2 10 is filled with small gravel with a particle siz...

Embodiment 3

[0062] This embodiment has been further optimized on the basis of Example 2. The aquatic plants in the aquatic plant reactor 1 are Elodea and reeds, and the surface coverage of the plants is 80%. The barbed wire for hanging plants is located in the aquatic plant reactor. 5cm below the device water inlet 3, the mesh aperture is 1cm. The drip irrigation pipeline 5 provided on the soil plant reactor 13 is an inlaid drip irrigation with a pipe diameter of 16 mm, drip holes are set every 70 cm on the drip irrigation, potatoes and sweet potatoes are planted in the plant layer 6, and grains are filled in the high-quality coconut shell activated carbon layer 8. High-quality coconut shell activated carbon with a diameter of 6-10mm, gravel filler layer 1 9 is filled with small gravels with a particle size of 15-20mm, gravel filler layer 2 10 is filled with large gravels with a particle size of 25-35mm; iron grid The bar spacing is 20mm.

[0063] The purification method of printing and ...

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