CN104743745B - A kind of garlic wastewater advanced treatment system - Google Patents

Abstract

The present invention relates to a kind of garlic wastewater advanced treatment system, comprise wastewater equalization pond, strengthening flotation tank, ozone oxidation sedimentation basin, material filling type anoxic anaerobic reation pool, baffling aeration biological filter chamber and oxidation pond; Strengthening flotation tank is followed successively by silt particle district, mixed zone and Disengagement zone from bottom to up, ozone oxidation sedimentation basin comprises aeration mixed zone and settling zone, material filling type anoxic anaerobic reation pool comprises the double oxygen section, anoxic section and the anaerobism section that are separated into by deflection plate, and baffling aeration biological filter chamber comprises lower current area, ascending zone and mud district; Waste water enters strengthening flotation tank through regulating reservoir and scums, then enter ozone oxidation sedimentation basin, the oxidized decomposition of pollutant, enter again material filling type anoxic anaerobic reation pool and carry out anoxic, anaerobic reaction, enter oxidation pond, oxidation pond water reuse after treatment through baffling aeration biological filter chamber reaction with after filtering.

Description

A kind of garlic wastewater advanced treatment system

technical field

The invention relates to the technical field of wastewater treatment, in particular to a garlic wastewater advanced treatment system.

Background technique

my country's garlic output is very high, ranking first in the world, accounting for about 1/4 of the world's total output. Most enterprises mainly process and produce garlic slices. The production and processing of garlic slices generally includes several processes such as selection, cleaning, slicing, rinsing, dehydration, water balance, sorting, packaging, and finished products, resulting in garlic wastewater, which contains more floating objects, higher COD concentration, and Contains allicin with strong antibacterial and bactericidal effects, making the wastewater a high-concentration refractory wastewater.

Chinese utility model patent "Garlic Processing Wastewater Treatment Facility" (application number: 201020559008.9) discloses a garlic processing wastewater treatment facility. With the revision and improvement of the national sewage discharge standard, the waste water treatment facility of this patent can no longer achieve the standard discharge.

Contents of the invention

The technical problem to be solved by the present invention is: in order to solve the above difficult problems in the treatment of garlic wastewater, the present invention provides a system for advanced treatment of garlic wastewater.

The technical solution adopted by the present invention to solve the technical problem is: a garlic wastewater advanced treatment system, including a wastewater regulating tank, an enhanced air flotation tank, an ozone oxidation sedimentation tank, a packed anoxic anaerobic reaction tank, and a baffled aerated organism The filter tank and the oxidation pond; the wastewater regulating pond, the enhanced air flotation pond, the ozone oxidation sedimentation pond, the packing type anoxic anaerobic reaction pond, the baffle type biological aerated filter and the oxidation pond are connected in sequence.

The waste water regulating pond includes a water inlet pipe and a water outlet pipe for regulating the water quality and water quantity of the garlic waste water.

The enhanced air flotation tank includes a water inlet pipe and an outlet pipe for discharging treated water. The enhanced air flotation tank includes a mud sand area, a mixing area and a separation area from bottom to top; the separation area includes a water collection area and The slag collection area located in the water collection area; an aeration pan is arranged between the mud sand area and the mixing area of the enhanced air flotation tank, and a water distribution branch pipe is arranged above the aeration disk, and the water distribution branch pipe is connected to The water inlet pipe, the aeration plate is connected to the fan outside the enhanced air flotation tank through the aeration pipe; a three-phase separator is provided in the separation area, and the three-phase separator includes a deflector and a deflector located on the deflector The triangular deflector ring used in conjunction with the deflector below, the triangular deflector ring is installed on the inner wall of the enhanced air flotation pool, the upper part of the deflector is the same shape as the separation area, the deflector The lower part is trumpet-shaped, and the inner diameter of the lower part of the deflector is larger than the inner diameter of the triangular guide ring; the upper part of the outer wall of the separation zone is provided with an overflow weir, and the overflow weir is connected to the outlet pipe; The slag collection area is equipped with a scum scraper and a scum tank; when the wastewater overflows from bottom to top, the water and scum enter the lower part of the deflector through the triangular diversion ring, and the scum continues to enter the scum collection area upwards, and the water passes through The gap between the deflector plate and the triangular deflector ring enters the catchment area; for better wastewater treatment, the water distribution branch pipe is set in a concentric circle shape or a cross shape, and the water distribution branch pipe has a horizontal radiation outlet; Further, the aeration pan is a microporous aeration pan with micropores evenly arranged; due to the different densities of water and sediment, the separation is realized under the action of a three-phase separator; in order to discharge the treated sediment, the There is a sediment discharge valve at the bottom of the above-mentioned enhanced air flotation tank.

The water outlet pipe of the enhanced air flotation tank communicates with the water inlet pipe of the ozone oxidation sedimentation tank.

The ozone oxidation sedimentation tank includes an aeration mixing zone and a sedimentation zone, an ozone aeration pan is arranged at the bottom of the aeration mixing zone, and a water distribution branch pipe is arranged above the ozone aeration disk, and the water distribution branch pipe is connected to The water inlet pipe, the ozone aeration plate is connected with the fan outside the ozone oxidation sedimentation tank through the aeration pipe, and the fan is connected to the ozone generator through the pipeline; a baffle plate is provided in the described sedimentation area, and the baffle plate is connected with the inner wall of the sedimentation tank Form a waste water flow channel that enters the sedimentation area as waste water. A three-phase separator is installed at the outlet of the sedimentation area. An overflow weir is installed on the upper part of the outlet of the sedimentation area. .

The packing type anoxic anaerobic reaction tank includes a participatory section, anoxic section and anaerobic section separated by baffles, the head end of the participatory section is provided with an inlet pipe for feeding waste water, and the partaerobic section The end is connected with the head end of the anoxic section, and the end of the anoxic section is connected with the head end of the anaerobic section. The lower part of the baffle plate on the inlet side of the anoxic section and the anaerobic section is provided with a 45-degree corner to avoid water flow when entering. The impact of the impact effect, so as to play the role of buffering water flow and uniform water distribution; the end of the anaerobic section is equipped with a three-phase separator and overflow weir, and the overflow weir is connected to the outlet pipe; the bottom of the anaerobic section, anoxic section and anaerobic section is designed Conical structure, the conical structure is connected to the sludge discharge valve; the upper cover of the facultative section, anoxic section and anaerobic section of the packed anoxic anaerobic reaction tank is designed as a conical structure, and the top of the conical structure is set There is an independent methane waste gas collection pipe; fillers are provided in the facultative, anoxic and anaerobic sections.

The upper part of the baffle type biological aerated filter is cylindrical, and the lower part is a conical structure, including a downflow area, an upflow area and a sludge area; the downflow area is located in the cylindrical structure of the baffle type biological aerated filter The middle part is a cylindrical structure, the upper part of the downstream area is provided with water inlet pipes and water distribution pipes, the middle part of the downstream area is provided with fillers, the lower part of the downstream area is provided with aeration pipes, and the bottom of the downstream area is provided with baffles. The longitudinal section of the flow plate is trumpet-shaped; the upper flow area is located at the periphery of the lower flow area and the upper part of the baffle, the middle of the upper flow area is provided with filler, the lower part is provided with an aeration pipe, and the outlet of the upper part of the upper flow area is provided with an overflow weir; The sludge zone is located at the bottom of the baffle type biological aerated filter, the lower part of the downstream zone and the upstream zone, and a sludge discharge valve is arranged at the bottom of the sludge zone.

The oxidation pond includes a water inlet, a cofferdam, a connecting channel and a water outlet; the oxidation pond is a plurality of ponds running in series.

A kind of method that adopts above-mentioned garlic wastewater advanced treatment system to carry out wastewater treatment has the following steps:

① Garlic wastewater enters the wastewater regulating tank through the water inlet pipe to adjust the water quality and quantity.

② Then the wastewater enters the middle and lower part of the enhanced air flotation tank through the water inlet pipe; the aeration plate located under the water inlet pipe of the enhanced air flotation tank produces a large number of fine air bubbles to make the solids in the wastewater friction and remove other pollutants on the solids; the aeration plate The generated fine air bubbles adhere to the floating matter to form a mixture that rises under the action of buoyancy. Under the action of the three-phase separator in the separation area of the enhanced air flotation tank, the mixture rises to the slag collection area. Under the action of the scum scraper, the scum It enters the scum tank and is cleaned and transported abroad; the sediment sinks to the mud and sand area at the lower part of the enhanced air flotation tank under the action of gravity, and is discharged through the sediment discharge valve at the bottom of the enhanced air flotation tank; the separated water is discharged in the enhanced air flotation tank Under the action of the deflector in the phase separation area, it enters the water collection area of the enhanced air flotation tank, and is connected to the water inlet pipe of the ozone oxidation sedimentation tank through the overflow weir, the outlet pipe and the connecting pipe.

③Wastewater enters the middle and lower part of the ozone oxidation sedimentation tank through the inlet pipe of the ozone oxidation sedimentation tank and the water distribution branch pipe; the ozone aeration plate located below the water distribution branch pipe of the ozone oxidation sedimentation tank generates a large number of fine bubbles to further rub the solids in the wastewater, At the same time, the macromolecular substances in the wastewater are oxidized into small molecular substances that are easy to absorb and absorb. The oxidized and decomposed wastewater enters the wastewater flow channel in the sedimentation area, and the three-phase separator in the sedimentation area realizes the separation of mud and water; the sludge is under the action of gravity. It sinks to the lower part of the sedimentation zone of the ozone oxidation sedimentation tank, and is discharged through the mud discharge valve at the bottom; the waste water is connected to the inlet pipe of the packed anoxic anaerobic reaction tank through the overflow weir, the outlet pipe and the connecting pipe.

④Wastewater enters the lower part of the filled anoxic anaerobic reaction tank through the inlet pipe of the adjunct oxygen section of the filled anoxic anaerobic reaction tank; The sludge bed in each reaction chamber of the oxygen section, the anoxic section and the anaerobic section, the sludge in the reaction tank moves with the up and down flow of the wastewater and the rise of the biogas, the blocking effect of the filler and the baffle is related to the sewage The sedimentation of the mud itself reduces the flow rate of the sludge, so a large amount of sludge is trapped in the reaction tank, and the microorganisms in the reaction tank fully contact with the organic matter in the wastewater. The facultative bacteria in the facultative stage, the heterotrophic bacteria in the anoxic stage and the anaerobic stage hydrolyze the organic matter in the wastewater into organic acids, decompose the macromolecular organic matter into small molecular organic matter, and convert the insoluble organic matter into soluble organic matter.

⑤After the anaerobic reaction, the three-phase separator at the end of the anaerobic section realizes the separation of mud, water and methane gas, and the sludge sinks to the lower part of the packed anoxic anaerobic reaction tank under the action of gravity. The excess sludge is discharged through the sludge discharge valve at the bottom; the methane waste gas generated by the packed anoxic anaerobic reaction tank is collected and discharged through the gas collection pipe on the top of the reaction tank; the treated wastewater enters the baffle through the overflow weir, outlet pipe and connecting pipe Inlet pipe of biological aerated filter.

⑥Wastewater enters the downstream area of the baffled biological aerated filter through the water inlet pipe and the water distribution pipe. The air generated by the aeration pipe and the waste water meet in the filler to undergo a biochemical reaction. Entering the upstream area, biochemical reactions occur in the packing, and at the same time, the packing filters the waste water. The sludge generated in the downstream area and the upstream area sinks to the sludge area and is discharged through the sludge discharge valve at the bottom of the sludge area. The baffle type The water treated by the biological aerated filter enters the oxidation pond through the overflow weir.

⑦Wastewater enters the oxidation pond through the water inlet, and the photosynthesis of algae and wind agitation provide dissolved oxygen, and aerobic microorganisms degrade the organic matter. The water after multi-stage oxidation pond treatment reaches the reuse water standard and is reused for garlic processing enterprises.

⑧Ozone oxidation sedimentation tank, packing type anoxic anaerobic reaction tank, baffle type biological aerated filter produces excess sludge after dehydration and then transported abroad.

The invention has the beneficial effects of adapting measures to local conditions, less capital construction investment, convenient maintenance, lower energy consumption, better treatment depth effect on garlic wastewater, realizing sewage resource utilization and comprehensive utilization of sewage.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic structural view of an enhanced air flotation tank according to an embodiment of the present invention.

In Figure 1: 1. Strengthened air flotation tank, 1-1. Strengthened air flotation tank inlet pipe, 1-2. Mud and sand area, 1-3. Mixing area, 1-4. Water collection area, 1-5. Slag collection area, 1-6. Enhanced air flotation tank aeration disc, 1-7. Strengthened air flotation tank water distribution branch pipe, 1-8. Blower and gas flow meter, 1-9. Strengthened air flotation tank three-phase separator, 1-10. Overflow weir , 1-11. Scraper plate, 1-12. Scum tank, 1-13. Sediment discharge valve.

Fig. 2 is a schematic structural diagram of an ozone oxidation sedimentation tank according to an embodiment of the present invention.

In Figure 2: 2. Ozone oxidation sedimentation tank, 2-1. Aeration mixing zone, 2-2. Sedimentation zone, 2-3. Ozone aeration pan, 2-4. Water distribution branch pipe, 2-5. Water inlet pipe , 2-6. Ozone blower and gas flow meter, 2-7. Ozone generator, 2-8. Baffle, 2-9. Ozone oxidation sedimentation tank three-phase separator, 2-10. Ozone oxidation sedimentation tank overflow weir , 2-11. Mud discharge valve.

Fig. 3 is a schematic structural diagram of a packed anoxic anaerobic reaction tank according to an embodiment of the present invention.

Among Fig. 3: 3. packing type anoxic anaerobic reaction tank, 3-1. baffle plate, 3-2. concurrent oxygen section, 3-3. anoxic section, 3-4. anaerobic section, 3-5 .Packing type anoxic anaerobic reaction tank inlet pipe, 3-6. Packing type anoxic anaerobic reaction tank three-phase separator, 3-7. Packing type anoxic anaerobic reaction tank overflow weir, 3-8. Sludge Discharge valve, 3-9. upper cover, 3-10. air collecting pipe, 3-11. packing.

Fig. 4 is a schematic structural view of a baffle type biological aerated filter according to an embodiment of the present invention.

Among Fig. 4: 4. baffle type biological aerated filter, 4-1. downstream area, 4-2. upper flow area, 4-3. sludge area, 4-4. baffle type biological aerated filter enters Water pipes, 4-5. Baffled biological aerated filter water distribution pipes, 4-6. Filling in the downstream area, 4-7. Aeration pipes, 4-8. Baffles, 4-9. Filling in the upstream area, 4 -10. Overflow weir of baffle type biological aerated filter, 4-11. Sludge discharge valve.

Fig. 5 is a schematic structural diagram of an oxidation pond according to an embodiment of the present invention.

Among Fig. 5: 5. oxidation pond, 5-1. oxidation pond water inlet, 5-2. cofferdam, 5-3. connecting water channel, 5-4. oxidation pond water outlet.

Fig. 6 is a process flow diagram of an embodiment of the present invention.

detailed description

The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

Example

As shown in Figures 1 to 6, a garlic wastewater advanced treatment system of the present invention includes a wastewater regulating tank, an enhanced air flotation tank 1, an ozone oxidation sedimentation tank 2, a packed anoxic anaerobic reaction tank 3, and a baffled aeration tank. Biological filter 4 and oxidation pond 5; the wastewater regulating pond, enhanced air flotation pond 1, ozone oxidation sedimentation pond 2, packing type anoxic anaerobic reaction pond 3, baffle type biological aerated filter pond 4 and oxidation pond 5 in sequence connected.

The waste water regulating pond includes a water inlet pipe and a water outlet pipe for regulating the water quality and water quantity of the garlic waste water.

The enhanced air flotation tank 1 includes a water inlet pipe 1-1 and an outlet pipe for discharging treated water, and the enhanced air flotation tank is sequentially composed of a mud sand area 1-2, a mixing area 1-3 and a separation area from bottom to top; The separation zone includes a water collection area 1-4 and a slag collection area 1-5 located in the water collection area; an aeration tray is arranged between the mud sand area 1-2 and the mixing area 1-3 of the enhanced air flotation tank 1-6, the top of the aeration pan is provided with a water distribution branch pipe 1-7, the water distribution branch pipe is connected to the water inlet pipe 1-1, and the aeration pan 1-6 is connected to a reinforced Fan 1-8 outside the air flotation pool. A three-phase separator 1-9 is provided in the separation zone, and the three-phase separator 1-9 includes a deflector and a triangular deflector ring located below the deflector and used in conjunction with the deflector. The triangular deflector ring is installed on the inner wall of the enhanced air flotation pool. The upper part of the deflector is in the same shape as the separation area, the lower part of the deflector is trumpet-shaped, and the inner diameter of the lower part of the deflector is greater than the inner diameter of the triangular diversion ring; the upper part of the outer wall of the separation zone is provided with an overflow weir 1-10, and the overflow weir 1-10 is connected to the outlet pipe; the slag collecting area 1-5 is equipped with scraping Plate 1-11 and scum tank 1-12; when the waste water overflows from bottom to top, water and scum enter the lower part of the deflector through the triangular diversion ring together, and the scum continues to enter the scum collecting area 1-5 upwards, Water enters the catchment area 1-4 through the gap between the deflector plate and the triangular deflector ring; for better wastewater treatment, the water distribution branch pipes 1-7 are arranged in the shape of concentric circles or crosses, and the water distribution There is a horizontal radiation outlet on the branch pipe; further, the aeration pan is a microporous aeration pan with micropores evenly arranged; due to the different densities of water and sediment, separation is realized under the action of a three-phase separator; in order to The treated sediment is discharged, and the bottom of the enhanced air flotation tank is provided with a sediment discharge valve 1-13.

The water outlet pipe of the enhanced air flotation tank 1 communicates with the water inlet pipe 2-5 of the ozone oxidation sedimentation tank 2.

The ozone oxidation sedimentation tank 2 includes an aeration mixing zone 2-1 and a sedimentation zone 2-2, an ozone aeration pan 2-3 is arranged at the bottom of the aeration mixing zone, and a cloth is arranged above the ozone aeration pan. The water branch pipe 2-4, the water distribution branch pipe 2-4 is connected to the water inlet pipe 2-5, the ozone aeration plate 2-3 is connected to the fan outside the ozone oxidation sedimentation tank through the aeration pipe, and the fan is connected through the pipeline Ozone generator 2-7; Described settling area is provided with baffle plate 2-8, and this baffle plate and the inner wall of settling tank form the waste water channel that enters settling area as waste water, and the outlet of settling area is provided with three-phase separator 2 -9, an overflow weir 2-10 is provided on the upper part of the outlet of the sedimentation area, and the bottom of the sedimentation area is designed as a conical structure, and a mud discharge valve 2-11 is arranged at the bottom of the sedimentation area.

The packing type anoxic anaerobic reaction tank 3 includes a concurrent oxygen section 3-2, anoxic section 3-3 and anaerobic section 3-4 separated by a baffle plate 3-1, and the concurrent oxygen section 3- 2 The head end is provided with an inlet pipe 3-5 for feeding waste water, the end of the anoxic section 3-2 is connected to the head end of the anoxic section 3-3, and the end of the anoxic section 3-3 is connected to the head end of the anaerobic section 3-4 The anoxic section 3-3 and the anaerobic section 3-4 are provided with a 45-degree corner at the lower part of the baffle on the water inlet side to avoid the impact of the water flow when it enters, thereby buffering the water flow and evenly The role of water distribution; the end of the anaerobic section 3-4 is provided with a three-phase separator 3-6 and an overflow weir 3-7, and the overflow weir 3-7 is connected to the outlet pipe; the anaerobic section 3-2, anoxic section 3- 3 and the bottom of the anaerobic section 3-4 are designed into a conical structure, and the conical structure is connected to the sludge discharge valve 3-8; The upper cover 3-9 is designed as a conical structure, and the top of the conical structure is provided with an independent methane waste gas collection pipe 3-10; the aerobic section, the anoxic section and the anaerobic section are all provided with fillers 3-11.

The middle and upper part of the baffle type biological aerated filter 4 is cylindrical, and the lower part is a conical structure, including a downstream zone 4-1, an upstream zone 4-2 and a sludge zone 4-3; the downstream zone 4- 1 Located in the middle of the cylindrical structure of the baffle type biological aerated filter, it is a cylindrical structure. The upper part of the downstream area is provided with water inlet pipes 4-4 and water distribution pipes 4-5. The middle part of the downstream area is provided with fillers 4-6. The downstream area The lower part is provided with an aeration pipe 4-7, and the bottom of the downstream area is provided with a baffle plate 4-8, and the longitudinal section of the baffle plate 4-8 is trumpet-shaped; the upstream area 4-2 is located in the downstream area. The periphery of the area 4-1, the upper part of the baffle plate, the middle part of the upstream area is provided with a filler 4-9, the lower part is provided with an aeration pipe, and the outlet of the upper part of the upstream area is provided with an overflow weir 4-10; the sludge area 4 -3 is located at the bottom of the baffle type biological aerated filter, the lower part of the downstream area and the upper area, and the bottom of the sludge area is provided with a sludge discharge valve 4-11.

The oxidation pond 5 includes a water inlet 5-1, a cofferdam 5-2, a connecting canal 5-3 and a water outlet 5-4; the oxidation pond 5 is a plurality of ponds running in series.

A kind of method that adopts above-mentioned garlic wastewater advanced treatment system to carry out wastewater treatment has the following steps:

① Garlic wastewater enters the wastewater regulating tank through the water inlet pipe to adjust the water quality and quantity.

② Then the waste water enters the middle and lower part of the enhanced air flotation tank through the water inlet pipe 1-1; the aeration disc 1-6 located under the water inlet pipe of the enhanced air flotation tank produces a large number of fine air bubbles to cause friction in the solid matter in the waste water, and remove other particles on the solid matter Pollutants; the fine air bubbles produced by the aeration pan 1-6 adhere to the floating matter to form a mixture that rises under the action of buoyancy, and the mixture rises to the slag collection area 1 under the action of the three-phase separator 1-9 in the enhanced air flotation tank -5, under the action of the scum scraper 1-11, the scum enters the scum tank 1-12 and is cleaned and transported; the sediment sinks to the mud sand area 1-2 at the lower part of the enhanced air flotation tank under the action of gravity, Discharge through the sediment discharge valve 1-13 at the bottom of the enhanced air flotation tank; the separated treated water enters the water collection area 1-4 of the enhanced air flotation tank under the action of the deflector in the three-phase separation area of the enhanced air flotation tank, and passes through the overflow weir 1-10 , the water outlet pipe and the connecting pipe are connected to the water inlet pipe 2-5 of the ozone oxidation sedimentation tank.

③Wastewater enters the middle and lower part of the ozone oxidation sedimentation tank 2 through the water inlet pipe 2-5 of the ozone oxidation sedimentation tank and the water distribution branch pipe 2-4; the ozone aeration plate 2-3 located below the water distribution branch pipe of the ozone oxidation sedimentation tank produces a large number of fine air bubbles The solid matter in the wastewater is further rubbed, and at the same time, the macromolecular substances in the wastewater are oxidized into small molecular substances that are easy to absorb and absorb. The oxidized and decomposed wastewater enters the wastewater flow channel in the sedimentation area, and the three-phase separator in the sedimentation area 2- 9 Realize the separation of mud and water; the sludge sinks under the action of gravity to the lower part of the sedimentation zone 2-2 of the ozone oxidation sedimentation tank, and is discharged through the mud discharge valve 2-11 at the bottom; the waste water passes through the overflow weir 2-10, the outlet pipe and the connection The pipe is connected to the water inlet pipe 3-5 of the packing type anoxic anaerobic reaction tank.

④Wastewater enters the lower part of the filled anoxic anaerobic reaction tank 3 through the inlet pipe 3-5 of the aerobic section of the filled anoxic anaerobic reaction tank; after entering the filled anoxic anaerobic reaction tank, the waste water advances up and down along the baffle , passing through the sludge bed of each reaction chamber in the facultative section 3-2, the anoxic section 3-3 and the anaerobic section 3-4 in turn, and the sludge in the reaction pool is affected by the up and down flow of wastewater and the rise of biogas The movement, the blocking effect of fillers and baffles, and the sedimentation of the sludge itself reduce the flow rate of the sludge, so a large amount of sludge is trapped in the reaction tank, and the microorganisms in the reaction tank and the organic matter in the wastewater are fully touch. The facultative bacteria in the facultative stage 3-2, the heterotrophic bacteria in the anoxic stage 3-3 and the anaerobic stage 3-4 hydrolyze the organic matter in the wastewater into organic acids, and decompose the macromolecular organic matter into small molecular organic matter. Organic matter is converted into soluble organic matter.

⑤ After the anaerobic reaction, the three-phase separator 3-6 installed at the end of the anaerobic section 3-4 realizes the separation of mud, water and methane gas, and the sludge sinks to the packed anoxic anaerobic tank under the action of gravity. In the lower part of the oxygen reaction tank, the excess sludge is discharged through the sludge discharge valve 3-8 at the bottom; the methane waste gas generated by the packed anoxic anaerobic reaction tank is collected and discharged through the gas collecting pipe 3-10 at the top of the reaction tank; the waste water is discharged through the overflow weir , the water outlet pipe and the water inlet pipe 4-4 entering the baffle type biological aerated filter tank.

⑥Wastewater enters the downstream area 4-1 of the baffled biological aerated filter through the water inlet pipe 4-4 and the water distribution pipe 4-5, and the air generated by the aeration pipe 4-7 and the waste water meet in the filler 4-6 to undergo a biochemical reaction At the same time, the filler 4-6 filters the wastewater, and the wastewater enters the upstream zone 4-2 after passing through the baffle 4-8, and biochemical reactions occur in the filler 4-9, and the filler 4-9 filters the wastewater at the same time, and the downstream zone 4 The sludge produced in -1 and upstream zone 4-2 sinks to the sludge zone 4-3, and is discharged through the sludge discharge valve 4-11 at the bottom of the sludge zone, and the water treated by the baffle type biological aerated filter Enter the oxidation pond 5 through the overflow weir 4-10.

⑦Wastewater enters the oxidation pond 5 through the water inlet 5-1, and the photosynthesis of algae and wind agitation provide dissolved oxygen, and the aerobic microorganisms degrade the organic matter. Garlic processing enterprises.

⑧Ozone oxidation sedimentation tank 2, packing type anoxic anaerobic reaction tank 3, baffle type biological aerated filter 4 produce excess sludge after dehydration and transport outside.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (2)

1. a garlic wastewater advanced treatment system, is characterized in that: comprise wastewater equalization pond, strengthening air supportingPond (1), ozone oxidation sedimentation basin (2), material filling type anoxic anaerobic reation pool (3), baffling aeration biologyFilter tank (4) and oxidation pond (5);

Described regulating reservoir comprises water inlet pipe and outlet pipe, for regulating water quality and the water yield of garlic wastewater;

Described strengthening flotation tank (1) comprise water inlet pipe (1-1) and for discharge process after the outlet pipe of water,Described strengthening flotation tank is followed successively by silt particle district (1-2), mixed zone (1-3) and Disengagement zone from bottom to up; DescribedDisengagement zone comprise gathering ground (1-4) and be positioned at Nei Jizha district, gathering ground (1-5); Described strengthening flotation tankBetween silt particle district (1-2) and mixed zone (1-3), be provided with aeration plate (1-6), the top of described aeration plate is provided withWater distribution branch pipe (1-7), described water distribution branch pipe connects water inlet pipe (1-1), and described aeration plate (1-6) is by exposing to the sunTracheae is connected with the blower fan outside strengthening flotation tank; In described Disengagement zone, be provided with three phase separator (1-9), described inThree phase separator (1-9) comprise deflector and be positioned at deflector below and lead with the triangle that deflector is used in conjunction withStream ring, described triangle guide ring is arranged on the inwall of strengthening flotation tank, the top of described deflector withThe shape of Disengagement zone is identical, and the bottom of described deflector is horn-like, in the bottom of described deflectorFootpath is greater than the internal diameter of triangle guide ring; The top of described Disengagement zone outer wall is provided with overfalling weir (1-10), described inOverfalling weir (1-10) be connected with outlet pipe; Described Ji Zha district (1-5) is laid with scum board (1-11) and scum silica frostGroove (1-12); Waste water from the bottom up overflow time, water together with scum silica frost by triangle guide ring enter deflector underPortion, scum silica frost continues up to enter Ji Zhaqu (1-5), and water enters by the gap between deflector and triangle guide ringEnter gathering ground (1-4); For the better effects if of wastewater treatment, described water distribution branch pipe (1-7) is arranged to one heartToroidal or cross shape, have horizontal radiation delivery port on water distribution branch pipe; Further, described aeration plateIt is the pore type aeration plate that is evenly provided with micropore; Due to water, sedimentary density difference, in three phase separationUnder device effect, realize and separating; In order to discharge sediment after treatment, it is heavy that described strengthening flotation tank bottom is provided withShallow lake thing drain valve (1-13);

Described ozone oxidation sedimentation basin (2) comprises aeration mixed zone (2-1) and settling zone (2-2), and aeration mixesBottom, district is provided with ozonation aerated dish (2-3), and the top of described ozonation aerated dish is provided with water distribution branch pipe (2-4),Described water distribution branch pipe (2-4) connects water inlet pipe (2-5), and described ozonation aerated dish (2-3) connects by aeration tubeBe connected to the blower fan outside ozone oxidation sedimentation basin, blower and pipeline is communicated with ozone generator (2-7); Described precipitationIn district, be provided with baffle plate (2-8), the inwall of this baffle plate and sedimentation basin forms the wastewater streams that enters settling zone as waste waterRoad, the exit of settling zone is provided with three phase separator (2-9), and the outlet top of settling zone is provided with overfalling weir(2-10), the tapered structure of settling zone bottom design, is provided with mud valve (2-11) in bottom, settling zone;

Described material filling type anoxic anaerobic reation pool (3) comprises the double oxygen section being separated into by deflection plate (3-1)(3-2), anoxic section (3-3) and anaerobism section (3-4), described double oxygen section (3-2) head end is provided with for supplyingEnter the water inlet pipe (3-5) of waste water, oxygen section (3-2) end of holding concurrently is communicated with anoxic section (3-3) head end, anoxicSection (3-3) end is communicated with anaerobism section (3-4) head end; Described anoxic section (3-3) and anaerobism section (3-4)The bottom of water inlet one side deflection plate be provided with the corner of 45 degree, the impact producing when avoiding current to enter is doneWith, thereby play the effect that cushions current and water distribution uniformity; Anaerobism section (3-4) end is provided with three phase separator(3-6) and overfalling weir (3-7), overfalling weir (3-7) connects outlet pipe; Described double oxygen section (3-2), scarceOxygen section (3-3) and the tapered structure of anaerobism section (3-4) bottom design, pyramidal structure connects mud discharging valve(3-8); The upper cover (3-9) of double oxygen section, anoxic section and the anaerobism section of described material filling type anoxic anaerobic reation poolBe designed to conical structure, conical structure top is all provided with methane waste product discharge (3-10); Described double oxygenIn section, anoxic section and anaerobism section, be all provided with filler (3-11);

The middle and upper part of described baffling aeration biological filter chamber (4) is that cylindrical, bottom is conical structure, bagDraw together lower current area (4-1), ascending zone (4-2) and mud district (4-3); Described lower current area (4-1) is positioned at foldingThe middle part of the cylindrical structural of streaming BAF, is cylindrical structural, and lower current area top is provided with into waterPipe (4-4) and water distributor (4-5), lower current area middle part is provided with filler (4-6), and lower current area bottom is provided with aerationPipe (4-7), the bottom of described lower current area is provided with deflection plate (4-8), and the vertical of described deflection plate (4-8) brokenIt is horn-like that face is; Described ascending zone (4-2) is positioned at the periphery of lower current area (4-1), ascending zone (4-2) positionIn the top of deflection plate, ascending zone middle part is provided with filler (4-9), and bottom is provided with aeration tube, ascending zone topExit be provided with overfalling weir (4-10); Described mud district (4-3) is positioned at baffling aeration biological filter chamberThe bottom of bottom, lower current area and ascending zone, the bottom in mud district is provided with mud discharging valve (4-11);

Described oxidation pond (5) comprises water inlet (5-1), cofferdam (5-2), connection water channel (5-3) and goes outThe mouth of a river (5-4); Described oxidation pond (5) is the body series operation of multiple pools.

2. a side that adopts garlic wastewater advanced treatment system as claimed in claim 1 to carry out wastewater treatmentMethod, has following steps:

1. garlic wastewater enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe;

2. then waste water enters the middle and lower part of strengthening flotation tank by water inlet pipe (1-1); Be positioned at strengthening flotation tankThe aeration plate (1-6) of water inlet pipe below produces a large amount of tiny bubbles makes the solids in waste water produce friction, goesExcept other pollutants on solids; The tiny bubble that aeration plate (1-6) produces and supernatant adhere to form and mixZoarium rises under buoyancy, under the effect of strengthening flotation tank three phase separator (1-9), on mixtureRise to Ji Zhaqu (1-5), under the effect of scum board (1-11), scum silica frost enters scum silica frost groove (1-12) alsoCleaned outward transport; Sediment sinks to the silt particle district (1-2) of strengthening flotation tank bottom under the effect of gravity,Sediment discharge valve (1-13) by strengthening flotation tank bottom is discharged; Water after separating treatment is at strengthening gasUnder the deflector effect of Fu Chi three-phase separation area, enter strengthening flotation tank gathering ground (1-4), pass through overfalling weir(1-10), outlet pipe and tube connector are communicated with the water inlet pipe (2-5) of ozone oxidation sedimentation basin;

3. waste water enters ozone by ozone oxidation sedimentation basin water inlet pipe (2-5) and water distribution branch pipe (2-4)The middle and lower part of oxidization and sedimentation basin (2); Be positioned at the ozonation aerated dish of ozone oxidation sedimentation basin water distribution branch pipe below(2-3) produce a large amount of tiny bubbles the solids in waste water is further rubbed, simultaneously large point in waste waterSub-substance oxidation becomes to be easy to absorb and the small-molecule substance of absorption, and the waste water after oxidation Decomposition enters settling zoneWaste water runner, the three phase separator (2-9) of settling zone is realized mud-water separation; Mud under the effect of gravity underSink to the bottom of ozone oxidation sedimentation basin settling zone (2-2), discharge by the mud valve (2-11) of bottom;Waste water is communicated with the water inlet pipe of material filling type anoxic anaerobic reation pool by overfalling weir (2-10), outlet pipe and tube connector(3-5)；

4. waste water enters material filling type anoxic by the hold concurrently water inlet pipe (3-5) of oxygen section of material filling type anoxic anaerobic reation poolThe bottom of anaerobic reation pool (3); Waste water enters after material filling type anoxic anaerobic reation pool along deflection plate (3-1)Advance up and down, pass through successively the each anti-of oxygen section (3-2), anoxic section (3-3) and anaerobism section (3-4) of holding concurrentlyAnswer the Sludge Bed of chamber, the effect that the mud in reaction tank rises along with the upper current downflow of waste water and biogas and moving,The barrier effect of filler and deflection plate (3-1) and the settlement action of mud self make again the flow velocity of mud reduce,Therefore a large amount of mud is all trapped within reaction tank, and the organic matter in microorganism and waste water in reaction tank fillsDivide contact; The heterotroph of amphimicrobe, anoxic section (3-3) and the anaerobism section (3-4) of the oxygen section (3-2) of holding concurrently willHydrolysis of organic matter in waste water is organic acid, makes larger molecular organics be decomposed into small organic molecule, insolubleOrganic matter change into dissolved organic matter;

5. the three phase separator (3-6) that the waste water after anaerobic reaction is provided with at anaerobism section (3-4) end is realizedThe separation of mud, water, methane gas, mud sinks to material filling type anoxic anaerobic reation pool under the effect of gravityBottom, unnecessary mud is discharged by the mud discharging valve (3-8) of bottom; Material filling type anoxic anaerobic reation poolThe methane waste product producing is collected discharge by reaction tank top discharge (3-10); Waste water by overfalling weir,Outlet pipe and tube connector enter the water inlet pipe of baffling aeration biological filter chamber (4);

6. waste water by water inlet pipe (4-4) and water distributor (4-5) enter baffling aeration biological filter chamber underStream district (4-1), the air that aeration tube (4-7) produces and waste water cross biochemistry occur in filler (4-6)Reaction, simultaneously filler (4-6) filters waste water, and waste water enters upper reaches after by deflection plate (4-8), there is biochemical reaction in district (4-2), filler (4-9) filters waste water simultaneously in filler (4-9),The mud that lower current area (4-1) and ascending zone (4-2) produce sinks to mud district (4-3), by mud districtThe mud discharging valve (4-11) of bottom emits, and baffling aeration biological filter chamber water after treatment is by overflowingMill weir (4-10) enters oxidation pond (5);

7. waste water enters oxidation pond (5) by water inlet (5-1), is stirred by photosynthesis and the wind-force of algaeDissolved oxygen is provided, and aerobic microbiological is degraded to organic matter, reaches through multi-stage oxidizing pool water after treatmentRecycle-water standard, is back to garlic processing enterprise;

8. ozone oxidation sedimentation basin (2), material filling type anoxic anaerobic reation pool (3), baffling aeration biological filterOutward transport after the excess sludge dehydration that pond (4) produces.