Efficient biofilm process denitrification reactor for treating weaving and dyeing wastewater

Abstract

The utility model discloses an efficient biofilm process denitrification reactor for treating weaving and dyeing wastewater, and relates to the related field of wastewater treatment. Comprising supporting legs, a pretreatment mechanism, a water pipe, an aerobic zone, a third conveying pipe, a second electromagnetic valve, a second water pump, a fourth conveying pipe, a desulfurization and denitrification mechanism, a fifth conveying pipe, a third electromagnetic valve, a third water pump, a sixth conveying pipe and an anoxic zone, the tops of the supporting legs are fixedly connected with the pretreatment mechanism, and the left end of the bottom of the pretreatment mechanism is fixedly connected with the water pipe; the right end of the pretreatment mechanism is fixedly connected with an aerobic zone, the pretreatment mechanism is arranged, cooling liquid and salt are stirred and mixed through two groups of stirring rollers, so that the temperature of weaving and dyeing wastewater in a placement box is reduced, a later biological membrane filler can reach a reaction state more quickly, and the reaction efficiency of the whole biological membrane filler is improved; and then the weaving and dyeing wastewater is purified through the biological membrane filler.

Description

Technical Field

[0001] The utility model relates to the relevant field of wastewater treatment, in particular to a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater. Background Art

[0002] Textile and dyeing wastewater has the characteristics of large water volume, high organic pollution content, high alkalinity, and large water quality changes. It is one of the difficult industrial wastewaters to treat. Conventional wastewater treatment processes, such as activated carbon adsorption, advanced oxidation, membrane separation, etc., can remove some harmful chemicals in the wastewater, but the removal rate of trace toxic organic matter is low. For this reason, an efficient biofilm denitrification reactor is set up to treat textile and dyeing wastewater.

[0003] When the existing technology uses biofilm to treat wastewater, it is difficult to pre-treat textile and dyeing wastewater. The textile and dyeing wastewater may be at a higher temperature due to the influence of external temperature. This phenomenon makes it difficult for the biofilm to reach a reaction state faster, thereby reducing the reaction efficiency of the entire biofilm method. In addition, when some equipment is conducting denitrification reactions, it is difficult to use desulfurization, denitrification and other methods to remove some nitrogen compounds, reduce the denitrification load, and improve the denitrification treatment effect. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater.

[0005] The utility model is implemented in this way, constructing a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater, the device comprises a supporting foot, the top of the supporting foot is fixedly connected with a pretreatment mechanism, the left end of the bottom of the pretreatment mechanism is fixedly connected with a water pipe, the right end of the pretreatment mechanism is fixedly connected with an aerobic zone, the bottom of the aerobic zone is fixedly connected with a third delivery pipe, the liquid outlet of the third delivery pipe is fixedly connected with a second solenoid valve, the right end of the third delivery pipe is fixedly connected with a second water pump, the right end of the second water pump is fixedly connected with a fourth delivery pipe, the right end of the fourth delivery pipe is fixedly connected with a desulfurization and denitrification mechanism, the right end of the desulfurization and denitrification mechanism is fixedly connected with a fifth delivery pipe, the liquid outlet of the fifth delivery pipe is fixedly connected with a third solenoid valve, the right end of the fifth delivery pipe is fixedly connected with a third water pump, the right end of the third water pump is fixedly connected with a sixth delivery pipe, and the top of the sixth delivery pipe is fixedly connected with an anoxic zone;

[0006] The pretreatment mechanism includes a treatment box, the top of the supporting foot is fixedly connected to the treatment box; a support plate, the back of the treatment box is fixedly connected to the support plate; a cylinder, the top of the support plate is fixedly connected to the cylinder; a tooth plate, the front end push rod of the cylinder is fixedly connected to the tooth plate; a gear, the right end of the tooth plate is meshed with a gear; a feed port, the right end of the top of the treatment box is fixedly connected to the feed port; a first delivery pipe, the right end of the bottom of the treatment box is fixedly connected to the first delivery pipe; a first solenoid valve, the first solenoid valve is fixedly connected to the liquid outlet of the first delivery pipe; a first water pump, the right end of the first delivery pipe is fixedly connected to the first water pump.

[0007] Preferably, the pretreatment mechanism further includes a second delivery pipe, to which the right end of the first water pump is fixedly connected; a biofilm filler, to which the aerobic zone is fixedly connected; and a rotating plate, to which the bottom of the wheel rod at the bottom of the gear is fixedly connected.

[0008] Preferably, the pretreatment mechanism further comprises a stirring roller, and stirring rollers are fixedly connected to both left and right ends of the bottom of the rotating plate; and a placement box, and a placement box is fixedly connected to the bottom of the processing box.

[0009] Preferably, the desulfurization and denitrification mechanism includes a pre-anoxic box, to which the right end of the fourth delivery pipe is fixedly connected; a temperature sensor, to which the temperature sensor is fixedly connected at the top center of the pre-anoxic box; a temperature controller, to which the left end of the pre-anoxic box is fixedly connected; and a charcoal layer, to which the charcoal layer is fixedly connected on the top of the pre-anoxic box.

[0010] Preferably, the desulfurization and denitrification mechanism further comprises activated carbon, which is fixedly connected at the center of the pre-anoxic box; and resin, which is fixedly connected at the bottom of the pre-anoxic box.

[0011] Preferably, the bottom of the tooth plate is slidably connected to the top of the processing box, and the bottom of the gear is rotatably connected to the top of the processing box.

[0012] Preferably, the right end of the second delivery pipe is fixedly connected to the aerobic zone, and the left end of the bottom of the treatment box is fixedly connected to a water pipe.

[0013] The utility model has the following advantages: The utility model provides a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater through improvement, which has the following improvements compared with the same type of equipment:

[0014] The utility model discloses a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater. A pretreatment mechanism is provided to stir and mix the coolant and salt through two sets of stirring rollers, so that the temperature of the textile and dyeing wastewater in the placement box is reduced, so that the later biofilm filler can reach the reaction state faster, and the reaction efficiency of the entire biofilm filler is improved. The textile and dyeing wastewater is then purified by the biofilm filler.

[0015] The utility model discloses a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater. The desulfurization and denitrification mechanism is set, the temperature of the textile and dyeing wastewater is re-adjusted by a temperature controller, and the textile and dyeing wastewater is desulfurized and denitrified by a charcoal layer, activated carbon and resin, so as to reduce the denitrification load and improve the denitrification treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the aerobic zone and the anoxic zone of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the pretreatment mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the processing box of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the desulfurization and denitrification mechanism of the utility model.

[0020] Among them: support foot-1, pretreatment mechanism-2, treatment box-21, support plate-22, cylinder-23, gear plate-24, gear-25, feed port-26, first delivery pipe-27, first solenoid valve-28, first water pump-29, second delivery pipe-210, biofilm filler-211, rotating plate-212, stirring roller-213, placement box-214, water pipe-3, aerobic zone-4, third delivery pipe-5, second solenoid valve-6, second water pump-7, fourth delivery pipe-8, desulfurization and denitrification mechanism-9, pre-anoxic box-91, temperature sensor-92, temperature controller-93, charcoal layer-94, activated carbon-95, resin-96, fifth delivery pipe-10, third solenoid valve-11, third water pump-12, sixth delivery pipe-13, anoxic zone-14. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1~Figure 4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Embodiment 1:

[0024] See also Figure 1~Figure 3 The utility model discloses a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater, comprising a supporting foot 1, a pretreatment mechanism 2 is fixedly connected to the top of the supporting foot 1, a water pipe 3 is fixedly connected to the left end of the bottom of the pretreatment mechanism 2, an aerobic zone 4 is fixedly connected to the right end of the pretreatment mechanism 2, a third delivery pipe 5 is fixedly connected to the bottom of the aerobic zone 4, a second solenoid valve 6 is fixedly connected to the liquid outlet of the third delivery pipe 5, a second water pump 7 is fixedly connected to the right end of the third delivery pipe 5, a fourth delivery pipe 8 is fixedly connected to the right end of the second water pump 7, a desulfurization and denitrification mechanism 9 is fixedly connected to the right end of the fourth delivery pipe 8, a fifth delivery pipe 10 is fixedly connected to the right end of the desulfurization and denitrification mechanism 9, a third solenoid valve 11 is fixedly connected to the liquid outlet of the fifth delivery pipe 10, a third water pump 12 is fixedly connected to the right end of the fifth delivery pipe 10, a sixth delivery pipe 13 is fixedly connected to the right end of the third water pump 12, and an anoxic zone 14 is fixedly connected to the top of the sixth delivery pipe 13;

[0025] The pretreatment mechanism 2 includes a treatment box 21 , the top of the support foot 1 is fixedly connected with the treatment box 21 , and the back of the treatment box 21 is fixedly connected with a support plate 22 , and the support plate 22 is convenient for fixing and installing the cylinder 23 .

[0026] A cylinder 23 is fixedly connected to the top of the support plate 22 , and a toothed plate 24 is fixedly connected to a push rod at the front end of the cylinder 23 , so that the toothed plate 24 can drive the gear 25 to rotate.

[0027] A gear 25 is meshed at the right end of the tooth plate 24, a feed port 26 is fixedly connected to the right end of the top of the processing box 21, and a first conveying pipe 27 is fixedly connected to the right end of the bottom of the processing box 21. The first conveying pipe 27 is convenient for conveying the weaving and dyeing wastewater.

[0028] A first electromagnetic valve 28 is fixedly connected to the liquid outlet of the first delivery pipe 27, and a first water pump 29 is fixedly connected to the right end of the first delivery pipe 27. The first electromagnetic valve 28 is convenient for controlling the inflow and outflow of weaving and dyeing wastewater.

[0029] The right end of the first water pump 29 is fixedly connected to the second delivery pipe 210, the aerobic zone 4 is fixedly connected to the biofilm filler 211, and the bottom of the bottom wheel rod of the gear 25 is fixedly connected to a rotating plate 212, which is convenient for driving the two sets of stirring rollers 213 to rotate.

[0030] The left and right ends of the bottom of the rotating plate 212 are fixedly connected with stirring rollers 213, and the bottom of the processing box 21 is fixedly connected with a placement box 214, which is convenient for storing the weaving and dyeing wastewater.

[0031] The bottom of the toothed plate 24 is slidably connected to the top of the treatment box 21 , the bottom of the gear 25 is rotatably connected to the top of the treatment box 21 , the right end of the second delivery pipe 210 is fixedly connected to the aerobic zone 4 , and the left end of the bottom of the treatment box 21 is fixedly connected to the water pipe 3 .

[0032] The working principle of a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater based on Example 1 is:

[0033] When the weaving and dyeing wastewater needs to be treated, the weaving and dyeing wastewater is transported to the placement box 214 through the water pipe 3, and then the coolant and salt are respectively transported to the treatment box 21 through the feed port 26, and then the cylinder 23 is started, the cylinder 23 drives the tooth plate 24 to move forward, the tooth plate 24 drives the gear 25 to rotate, the gear 25 drives the rotating plate 212 to rotate through the bottom wheel rod thereof, the rotating plate 212 drives the two sets of stirring rollers 213 to rotate, and the two sets of stirring rollers 213 stir and mix the coolant and the salt to reduce the freezing point of the coolant. During the mixing process, the coolant and salt mixture is fully in contact with the outer wall of the placement box 214, and the temperature of the textile and dyeing wastewater in the placement box 214 is reduced by heat transfer, so that the later biofilm filler 211 can reach the reaction state faster, and the reaction efficiency of the entire biofilm filler 211 is improved. Then, the first solenoid valve 28 and the first water pump 29 are started, and the cooled textile and dyeing wastewater in the placement box 214 is transported to the second delivery pipe 210 through the first solenoid valve 28 and the first water pump 29, and then transported to the aerobic zone 4 through the second delivery pipe 210. Under the aerobic conditions of the aerobic zone 4, microorganisms accumulate and adhere on the surface of the biofilm filler 211 to form a biofilm. When the textile and dyeing wastewater passes through the biofilm, the microorganisms in the biofilm absorb organic matter in the textile and dyeing wastewater to purify the textile and dyeing wastewater. At the same time, the microorganisms are proliferated, and the formed biofilm is thickened accordingly. Under the aerobic conditions of the aerobic zone 4, the nitrifying bacteria in the textile and dyeing wastewater are used to convert nitrogen-containing substances into nitrates to complete the nitrification reaction. Then, the second solenoid valve 6 and the second water pump 7 are started, and the second solenoid valve 6 and the second water pump 7 are started. 6 and the second water pump 7 transport the textile and dyeing wastewater in the aerobic zone 4 to the fourth delivery pipe 8, and then transport it to the desulfurization and denitrification mechanism 9 through the fourth delivery pipe 8 for deoxygenation and denitrification, and then start the third solenoid valve 11 and the third water pump 12, and transport the textile and dyeing wastewater in the desulfurization and denitrification mechanism 9 to the sixth delivery pipe 13 through the third solenoid valve 11 and the third water pump 12, and then transport it to the anoxic zone 14 through the sixth delivery pipe 13, and use the denitrifying bacteria in the textile and dyeing wastewater to reduce nitrate to gaseous nitrogen under anoxic conditions to complete the denitrification reaction. Embodiment 2:

[0034] See also Figure 4 The utility model is a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater. Compared with the first embodiment, this embodiment also includes: a desulfurization and denitrification mechanism 9, the desulfurization and denitrification mechanism 9 includes a pre-anoxic box 91, and the right end of the fourth conveying pipe 8 is fixedly connected to the pre-anoxic box 91, which is convenient for storing textile and dyeing wastewater.

[0035] A temperature sensor 92 is fixedly connected to the center of the top of the pre-anoxic box 91, and the temperature sensor 92 is convenient for detecting the temperature of the weaving and dyeing wastewater.

[0036] A temperature controller 93 is fixedly connected to the left end of the pre-anoxic box 91, a charcoal layer 94 is fixedly connected to the upper part of the pre-anoxic box 91, and a temperature sensor 92 is convenient for adjusting the temperature of the weaving and dyeing wastewater.

[0037] An activated carbon 95 is fixedly connected at the center of the pre-anoxic box 91, and a resin 96 is fixedly connected at the bottom of the pre-anoxic box 91. The charcoal layer 94, the activated carbon 95 and the resin 96 facilitate desulfurization and denitrification treatment of the weaving and dyeing wastewater.

[0038] In this embodiment:

[0039] When the weaving and dyeing wastewater is transported to the pre-anoxic box 91 through the fourth transport pipe 8, the temperature of the weaving and dyeing wastewater is detected by the temperature sensor 92. When the temperature of the weaving and dyeing wastewater needs to be readjusted, the temperature controller 93 is started to readjust the temperature of the weaving and dyeing wastewater through the temperature controller 93. When the weaving and dyeing wastewater is transported to the pre-anoxic box 91, it passes through the charcoal layer 94, the activated carbon 95 and the resin 96 respectively. The weaving and dyeing wastewater is desulfurized and denitrified by the charcoal layer 94, the activated carbon 95 and the resin 96, thereby reducing the denitrification load and improving the denitrification treatment effect.

[0040] The utility model provides a high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater through improvement. A pretreatment mechanism 2 is provided. Cooling liquid and salt are stirred and mixed by two groups of stirring rollers 213, so that the temperature of textile and dyeing wastewater in a placing box 214 is reduced, so that the later biofilm filler 211 can reach a reaction state faster, and the reaction efficiency of the entire biofilm filler 211 is improved, and then the textile and dyeing wastewater is purified by the biofilm filler 211; a desulfurization and denitrification mechanism 9 is provided. The temperature of textile and dyeing wastewater is adjusted again by a temperature controller 93, and then the textile and dyeing wastewater is desulfurized and denitrified by a charcoal layer 94, activated carbon 95 and resin 96, so as to reduce the denitrification load and improve the denitrification treatment effect.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater, comprising a support foot (1), the top of the support foot (1) being fixedly connected to a pretreatment mechanism (2), the bottom left end of the pretreatment mechanism (2) being fixedly connected to a water pipe (3), the right end of the pretreatment mechanism (2) being fixedly connected to an aerobic zone (4), the bottom of the aerobic zone (4) being fixedly connected to a third delivery pipe (5), the liquid outlet of the third delivery pipe (5) being fixedly connected to a second solenoid valve (6), the right end of the third delivery pipe (5) being fixedly connected to a second water pump (7), and the third The right end of the second water pump (7) is fixedly connected to a fourth delivery pipe (8), the right end of the fourth delivery pipe (8) is fixedly connected to a desulfurization and denitrification mechanism (9), the right end of the desulfurization and denitrification mechanism (9) is fixedly connected to a fifth delivery pipe (10), the liquid outlet of the fifth delivery pipe (10) is fixedly connected to a third solenoid valve (11), the right end of the fifth delivery pipe (10) is fixedly connected to a third water pump (12), the right end of the third water pump (12) is fixedly connected to a sixth delivery pipe (13), and the top of the sixth delivery pipe (13) is fixedly connected to an anoxic zone (14); Features: The pretreatment mechanism (2) comprises: a treatment box (21), the top of the support foot (1) being fixedly connected to the treatment box (21); a support plate (22), the back of the treatment box (21) being fixedly connected to the support plate (22); a cylinder (23), the top of the support plate (22) being fixedly connected to the cylinder (23); a toothed plate (24), the front end push rod of the cylinder (23) being fixedly connected to the toothed plate (24); a gear (25), the right end of the toothed plate (24) being meshed with the gear (25); a feed port (26), the right end of the top of the treatment box (21) being fixedly connected to the feed port (26); a first delivery pipe (27), the right end of the bottom of the treatment box (21) being fixedly connected to the first delivery pipe (27); a first solenoid valve (28), the first solenoid valve (28) being fixedly connected to the liquid outlet of the first delivery pipe (27); and a first water pump (29), the right end of the first delivery pipe (27) being fixedly connected to the first water pump (29).

2. The high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater according to claim 1, characterized in that: The pretreatment mechanism (2) further comprises: a second delivery pipe (210), to which the right end of the first water pump (29) is fixedly connected; a biofilm filler (211), to which the aerobic zone (4) is fixedly connected; and a rotating plate (212), to which the bottom of the wheel rod at the bottom of the gear (25) is fixedly connected.

3. A high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater according to claim 2, characterized in that: The pre-treatment mechanism (2) further comprises: a stirring roller (213), to which both left and right ends of the bottom of the rotating plate (212) are fixedly connected; and a placement box (214), to which the bottom of the treatment box (21) is fixedly connected.

4. The high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater according to claim 3, characterized in that: The desulfurization and denitrification mechanism (9) comprises: a pre-anoxic box (91), to which the right end of the fourth delivery pipe (8) is fixedly connected; a temperature sensor (92), to which the center of the top of the pre-anoxic box (91) is fixedly connected; a temperature controller (93), to which the left end of the pre-anoxic box (91) is fixedly connected; and a charcoal layer (94), to which the upper part of the pre-anoxic box (91) is fixedly connected.

5. The high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater according to claim 4, characterized in that: The desulfurization and denitrification mechanism (9) further comprises: activated carbon (95), with the activated carbon (95) being fixedly connected at the center of the pre-anoxic box (91); and resin (96), with the resin (96) being fixedly connected at the bottom of the pre-anoxic box (91).

6. The high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater according to claim 5, characterized in that: The bottom of the tooth plate (24) is slidably connected to the top of the processing box (21), and the bottom of the gear (25) is rotatably connected to the top of the processing box (21).

7. The high-efficiency biofilm denitrification reactor for treating textile and dyeing wastewater according to claim 6, characterized in that: The right end of the second delivery pipe (210) is fixedly connected to the aerobic zone (4), and the left end of the bottom of the treatment box (21) is fixedly connected to the water pipe (3).

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