CN210505966U - Anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater - Google Patents
Anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater Download PDFInfo
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- CN210505966U CN210505966U CN201921313186.0U CN201921313186U CN210505966U CN 210505966 U CN210505966 U CN 210505966U CN 201921313186 U CN201921313186 U CN 201921313186U CN 210505966 U CN210505966 U CN 210505966U
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Abstract
The utility model belongs to the technical field of waste water treatment and specifically relates to an anaerobism-good oxygen high-efficient processing apparatus of high concentration formaldehyde waste water, including wastewater disposal basin, anaerobism granular sludge bed, CBR carrier fluidized bed, ASR activated sludge pond, sedimentation tank. The utility model provides an anaerobism-good oxygen high efficiency treatment device of high concentration formaldehyde waste water, whole technology easy operation, running cost hang down, high-efficient getting rid of, and can by-product marsh gas increase economic benefits, simultaneously, to the anaerobic treatment of high concentration formaldehyde waste water, strengthened the resistant formaldehyde concentration of anaerobism greatly, improve the shock-resistant load of good oxygen treatment simultaneously.
Description
Technical Field
The utility model relates to the field of wastewater treatment, in particular to an anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater.
Background
The prior treatment of COD, formaldehyde and the like in wastewater adopts a chemical (pretreatment) -biological combined method to remove formaldehyde, which has higher cost and complex process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing an anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater, which can realize the high-efficiency removal of COD and formaldehyde in the wastewater.
In order to achieve the aim, the utility model discloses an anaerobism-good oxygen high-efficiency processing apparatus of high concentration formaldehyde waste water, including the wastewater disposal basin, anaerobism granule sludge blanket, CBR carrier flow bed, ASR activated sludge pond, the sedimentation tank, be provided with the waste water conveyer pipe on the wastewater disposal basin, waste water duct connections is to anaerobism granule sludge blanket, be provided with the peristaltic pump on the waste water conveyer pipe, be provided with the overflow pipe on anaerobism granule sludge blanket, the overflow pipe is connected to CBR carrier flow bed, be provided with the outlet pipe on the CBR carrier flow bed, go out water piping connection to ASR activated sludge basin, the export in ASR activated sludge basin is through pipe connection to the sedimentation tank, the sedimentation tank is used for after mud and impurity deposit, the exit linkage of sedimentation tank is to waste water pipe.
Wherein the bottom of anaerobism granular sludge bed is provided with the water inlet, the upper end sets up the three-phase separator, set up the delivery port in the upper end of anaerobism granular sludge bed, connect the overflow pipe on the delivery port, the overflow pipe is connected to good oxygen carrier fluidized bed, good oxygen carrier fluidized bed is separated for three cavity by transparent baffle, and the upper end of transparent baffle is provided with multilayer pore hole structure, the overflow pipe is connected to first cavity, be provided with the outlet in the upper end of third cavity, be provided with activated sludge in first cavity and the inside of second cavity, bottom at first cavity and second cavity is provided with aeration systems, be provided with the biomembrane carrier in first cavity.
The anaerobic granular sludge bed is provided with a methane recovery mechanism, which specifically comprises the following steps: the top of the anaerobic granular sludge bed is provided with an air duct which is connected to a biogas purification device, and the biogas purification device is connected to a biogas storage tank.
The CBR carrier fluidized bed is internally provided with a biomembrane carrier.
An anaerobic-aerobic high-efficiency treatment method for high-concentration formaldehyde wastewater, which comprises the steps of collecting wastewater containing COD and formaldehyde in a wastewater tank, firstly diluting the COD content in the wastewater to 3000mg/L, then adding calcium hydroxide to adjust the PH value to 7.3-7.7, then adding a proper amount of trace elements, urea and potassium dihydrogen phosphate, conveying the wastewater to an anaerobic granular sludge bed for reaction, controlling the reaction temperature to 35-38 ℃ and the load to be 1-3gCOD/Ld, recovering biogas, overflowing the wastewater after the anaerobic granular sludge bed reaction to a CBR carrier fluidized bed through an overflow pipe, treating the wastewater through an internal biomembrane carrier, wherein the COD load is 1-2gCOD/Ld and the dissolved oxygen concentration is 4.5-4.8mg/L, then conveying the wastewater to an ASR activated sludge tank, wherein the sludge concentration is 3-3.5g/L, then conveying the wastewater into a sedimentation tank to precipitate sludge and impurities, and then collecting final effluent, and discharging into a waste water pipe network.
Wherein the trace elements refer to that 1L of solution contains the following substances: 14g EDTA, 0.43g CoCl2·6H2O、1gMnCl2·4H2O、0.22gNa2MoO4·2H2O、0.21gNa2SeO4·10H2O、0.014gH3BO3Adding urea and potassium dihydrogen phosphate, and controlling COD, N and P in the inlet water to be 500, 5 and 1.
The utility model provides an anaerobism-good oxygen high efficiency treatment device of high concentration formaldehyde waste water, through the rational design to high concentration formaldehyde waste water treatment process, whole technology easy operation, running cost are low, the high efficiency is got rid of, and can by-product marsh gas increase economic benefits, simultaneously, to the anaerobic treatment of high concentration formaldehyde waste water, have strengthened the concentration that the anaerobism tolerates formaldehyde greatly, improve the resistant impact load of good oxygen processing simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure between the anaerobic granular sludge bed and the aerobic carrier fluidized bed of the present invention.
Detailed Description
The invention is further described by the following embodiments in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1, the anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater described in this embodiment comprises a wastewater pool, an anaerobic granular sludge bed 1, a CBR carrier fluidized bed, an ASR activated sludge pool, and a sedimentation tank, wherein a wastewater delivery pipe is arranged on the wastewater pool, the wastewater delivery pipe is connected to the anaerobic granular sludge bed 1, a peristaltic pump is arranged on the wastewater delivery pipe, an overflow pipe 5 is arranged on the anaerobic granular sludge bed 1, the overflow pipe 5 is connected to the CBR carrier fluidized bed, a water outlet pipe is arranged on the CBR carrier fluidized bed, the water outlet pipe is connected to the ASR activated sludge pool, an outlet of the ASR activated sludge pool is connected to the sedimentation tank through a pipeline, the sedimentation tank is used for precipitating sludge and impurities, and an outlet of the sedimentation tank is connected.
As shown in fig. 2, a water inlet 3 is arranged at the bottom of an anaerobic granular sludge bed 1, a three-phase separator 2 is arranged at the upper end of the anaerobic granular sludge bed 1, a water outlet 4 is arranged at the upper end of the anaerobic granular sludge bed 1, an overflow pipe 5 is connected to the water outlet 4, the overflow pipe 5 is connected to a CBR carrier fluidized bed, the aerobic carrier fluidized bed is divided into three cavities by a transparent baffle plate 9, a multi-layer fine hole structure is arranged at the upper end of the transparent baffle plate 9, the overflow pipe 5 is connected to a first cavity, a water outlet 10 is arranged at the upper end of the third cavity, activated sludge 7 is arranged in the first cavity and a second cavity, an aeration system 8 is arranged at the bottom of the first cavity and the second cavity.
The anaerobic granular sludge bed 1 is provided with a methane recovery mechanism, which specifically comprises the following steps: the top of the anaerobic granular sludge bed 1 is provided with an air duct 11, the air duct 11 is connected to a methane purification device 12, and the methane purification device 12 is connected to a methane storage tank 13.
The biomembrane carrier 6 is arranged in the CBR carrier fluid bed.
Example 2:
an anaerobic-aerobic high-efficiency treatment method for high-concentration formaldehyde wastewater comprises the steps of diluting the wastewater with 100232 mg/L COD and 15000mg/L formaldehyde into 3000mg/L COD, adding calcium hydroxide to adjust the pH value to 7.5, adding a proper amount of trace elements, urea and potassium dihydrogen phosphate as inlet water, lifting the wastewater to an anaerobic granular sludge bed reactor in a two-way manner through a peristaltic pump, controlling the temperature of the reactor to be 36.0 ℃, controlling the load to be 1.5g of COD/Ld, recovering by-product biogas, overflowing anaerobic effluent into a CBR carrier flow bed reactor, controlling the COD load to be 1.2 g of COD/Ld and the dissolved oxygen concentration to be 4.5 mg/L, degrading most of COD through the treatment of a biomembrane carrier, feeding the effluent into an ASR activated sludge tank reactor, controlling the sludge concentration to be 3g/L, removing the residual COD and a small amount of residual formaldehyde, feeding the effluent of the sludge tank into a sedimentation tank finally, and precipitating sludge and impurities, collecting final effluent, and discharging the wastewater reaching the treatment standard into a pipe network.
Example 3:
an anaerobic-aerobic high-efficiency treatment method for high-concentration formaldehyde wastewater comprises the steps of diluting the wastewater with 100232 mg/L COD and 15000mg/L formaldehyde into 5000mg/L COD, adding calcium hydroxide to adjust the pH value to 7.6, adding a proper amount of trace elements, urea and potassium dihydrogen phosphate as inlet water, lifting the wastewater to an anaerobic granular sludge bed reactor in a two-way manner through a peristaltic pump, controlling the temperature of the reactor to be 36.5 ℃, controlling the load to be 3.0g of COD/Ld, recovering by-product biogas, overflowing anaerobic effluent into a CBR carrier flow bed reactor, controlling the COD load to be 2.0 g of COD/Ld and the dissolved oxygen concentration to be 4.6 mg/L, reducing most of COD through the treatment of a biomembrane carrier, feeding the effluent into an ASR activated sludge tank reactor, controlling the sludge concentration to be 3.5g/L, realizing the removal of the residual COD and a small amount of residual formaldehyde, feeding the effluent of the sludge tank into a sedimentation tank finally, and precipitating sludge and impurities, collecting final effluent, and discharging the wastewater reaching the treatment standard into a pipe network.
Claims (3)
1. An anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater is characterized in that: including the wastewater disposal basin, anaerobism granular sludge bed, CBR carrier fluidized bed, ASR activated sludge pool, the sedimentation tank, be provided with the waste water conveyer pipe on the wastewater disposal basin, waste water duct connections is to anaerobism granular sludge bed, be provided with the peristaltic pump on the waste water conveyer pipe, be provided with the overflow pipe on anaerobism granular sludge bed, the overflow pipe is connected to CBR carrier fluidized bed, be provided with the outlet pipe on the CBR carrier fluidized bed, go out water piping connection to ASR activated sludge pool, the export in ASR activated sludge pool is passed through pipe connection to the sedimentation tank, the sedimentation tank is used for after mud and impurity deposit, the exit linkage to waste water pipe network of sedimentation tank.
2. The anaerobic-aerobic high-efficiency treatment device for the high-concentration formaldehyde wastewater as claimed in claim 1, which is characterized in that: a methane recovery mechanism is arranged on the anaerobic granular sludge bed.
3. The anaerobic-aerobic high-efficiency treatment device for the high-concentration formaldehyde wastewater as claimed in claim 1, which is characterized in that: the CBR carrier fluidized bed is internally provided with a biomembrane carrier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921313186.0U CN210505966U (en) | 2019-08-14 | 2019-08-14 | Anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater |
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| CN201921313186.0U CN210505966U (en) | 2019-08-14 | 2019-08-14 | Anaerobic-aerobic high-efficiency treatment device for high-concentration formaldehyde wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467314A (en) * | 2019-08-14 | 2019-11-19 | 浙江巨能环境工程有限公司 | A kind of the anaerobic-aerobic high-efficient treatment device and processing method of high-concentration formaldehyde wastewater |
| CN114315022A (en) * | 2021-12-24 | 2022-04-12 | 江苏蓝必盛化工环保股份有限公司 | Full biological treatment method for high-concentration formaldehyde wastewater |
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2019
- 2019-08-14 CN CN201921313186.0U patent/CN210505966U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467314A (en) * | 2019-08-14 | 2019-11-19 | 浙江巨能环境工程有限公司 | A kind of the anaerobic-aerobic high-efficient treatment device and processing method of high-concentration formaldehyde wastewater |
| CN114315022A (en) * | 2021-12-24 | 2022-04-12 | 江苏蓝必盛化工环保股份有限公司 | Full biological treatment method for high-concentration formaldehyde wastewater |
| CN114315022B (en) * | 2021-12-24 | 2023-12-22 | 江苏蓝必盛化工环保股份有限公司 | Full biological treatment method for high-concentration formaldehyde wastewater |
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