CN210237408U - Poisonous waste water treatment equipment of resin production - Google Patents
Poisonous waste water treatment equipment of resin production Download PDFInfo
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- CN210237408U CN210237408U CN201921078276.6U CN201921078276U CN210237408U CN 210237408 U CN210237408 U CN 210237408U CN 201921078276 U CN201921078276 U CN 201921078276U CN 210237408 U CN210237408 U CN 210237408U
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Abstract
The utility model provides a resin production toxic wastewater treatment device, which is characterized by comprising a workshop mixed wastewater treatment line and a high-concentration toxic wastewater treatment line; the workshop mixed wastewater production line comprises an oil separation grit chamber, a wastewater adjusting tank, a PH adjusting tank, a primary settling tank, an intermediate water tank, a UASB (upflow anaerobic sludge blanket) anaerobic reactor, a hydrolysis acidification tank, a high-load aerobic biochemical tank, a medium-load aerobic biochemical tank, a secondary settling tank and an active carbon reaction sedimentation tank which are sequentially communicated, wherein the secondary settling tank, the high-load aerobic biochemical tank, the medium-load aerobic biochemical tank and the hydrolysis acidification tank are respectively communicated with the hydrolysis acidification tank through water return pipelines; the high-concentration toxic wastewater treatment line comprises a high-concentration toxic wastewater adjusting tank and a Fenton oxidation sedimentation tank which are sequentially communicated; the primary sedimentation tank, the medium-load aerobic biochemical tank and the Fenton oxidation sedimentation tank are communicated with a sludge tank, the sludge tank is connected with a membrane filter press, and the Fenton oxidation sedimentation tank is also communicated with the wastewater adjusting tank.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment equipment, especially, relate to a poisonous waste water treatment equipment of resin production.
Background
Polyester resin wastewater is typical high-concentration organic industrial wastewater. In recent years, with the continuous acceleration of domestic energy reform and low-carbon economy, the demand of composite materials is rapidly increased, wherein the polyester resin is roughly divided into building construction, ships, automobile transportation, pipeline containers, electronic and electrical, wind energy, artificial stones and the like in the end user industry of the polyester resin market due to the advantages of simple and convenient production process, easily available raw materials, chemical corrosion resistance, excellent mechanical property, electrical property, easy forming and the like. According to statistics, the annual output of the polyester resin in China keeps 14.99% of average increasing rate since 2001, the actual annual output of the polyester resin is 1530000 tons in 2009, which accounts for 17.00% of the total global output, and China has become the world with the largest polyester resin output and sale.
The polyester resin industry generates a large amount of high-concentration organic wastewater in a rapid development process, and the amount of the wastewater generated per year can reach more than 25900000 tons according to the calculation that each ton of products generates 3-10 tons of wastewater. The problem of high-concentration polyester wastewater pollution generated in the production process of polyester resin is one of the restriction factors of sustainable development of the polyester resin industry in China, so the treatment work of the wastewater is reluctant.
The polyester resin wastewater discharged into natural environments such as water bodies is difficult to degrade through natural self-purification effect and is difficult to remove by the conventional biological treatment process, and if the polyester resin wastewater is discharged into the environment without treatment or improper treatment, pollutants in the polyester resin wastewater can be continuously accumulated in natural media such as water bodies and soil, thereby causing great threat to the environment and being harmful to human health. The main pollutants in the wastewater are heterocyclic compounds and contain refractory toxic wastewater organic matters such as formaldehyde, and the like, and the wastewater treatment equipment in the prior art is difficult to carry out harmless treatment on the wastewater, so that the quality of the effluent reaches the national standard.
SUMMERY OF THE UTILITY MODEL
The utility model is directed to the defects, the utility model provides a separate preliminary treatment, anaerobic treatment, aerobic treatment, oxygen deficiency processing method organic with workshop waste water and high concentration poisonous waste water combines together, reaches a better poisonous waste water treatment equipment of resin production of biodegradability.
The utility model provides a following technical scheme: a resin production toxic wastewater treatment device comprises a workshop mixed wastewater treatment line and a high-concentration toxic wastewater treatment line; the workshop mixed wastewater production line comprises an oil separation grit chamber, a wastewater adjusting tank, a PH adjusting tank, a primary settling tank, an intermediate water tank, a UASB (upflow anaerobic sludge blanket) anaerobic reactor, a hydrolysis acidification tank, a high-load aerobic biochemical tank, a medium-load aerobic biochemical tank, a secondary settling tank and an active carbon reaction settling tank which are sequentially communicated, wherein the secondary settling tank and the medium-load aerobic biochemical tank are respectively communicated with the high-load aerobic biochemical tank through a water return pipeline; the high-concentration toxic wastewater treatment line comprises a high-concentration toxic wastewater adjusting tank and a Fenton oxidation sedimentation tank which are sequentially communicated; the primary sedimentation tank, the medium-load aerobic biochemical tank and the Fenton oxidation sedimentation tank are communicated with a sludge tank, the sludge tank is connected with a membrane filter press, and the Fenton oxidation sedimentation tank is also communicated with the wastewater adjusting tank.
As the utility model discloses a further inject, the filtrating that the filter press filter pressed out is leading-in extremely through the pipeline oil removal grit chamber.
As a further limitation of the utility model, the PH adjusting tank is provided with a calcium hydroxide dosing pump.
As a further limitation of the utility model, the primary sedimentation tank is provided with a ferrous sulfate dosing pump and a PAM dosing pump.
As the utility model discloses a further inject, the fenton oxidation sedimentation tank is equipped with ferrous sulfate dosing pump, hydrogen peroxide solution dosing pump, alkali dosing pump, PAC dosing pump and PAM dosing pump.
As a further limitation of the utility model, the activated carbon reaction sedimentation tank is equipped with activated carbon dosing pump, PAC dosing pump and PAM dosing pump.
As a further limitation of the utility model, the high-load aerobic biochemical pool and the medium-load aerobic biochemical pool are both provided with a fan and a condenser.
As a further limitation of the utility model, an aeration system is arranged in the high-load aerobic biochemical pool and the medium-load aerobic biochemical pool, and suspended fillers are added in the aeration system.
The utility model has the advantages that:
1) the utility model discloses a UASB anaerobism biological treatment utilizes anaerobism microorganism's metabolic process, need not to provide under the condition of oxygen supply, turns into inorganic matter and a small amount of cell material to the poisonous organic matter of high concentration in the resin production waste water, and these inorganic matters include a large amount of biogas (being marsh gas) and water.
2) The supernatant after anaerobic biological treatment and the mixed liquid from the aerobic reflux are mixed in a hydrolysis acidification tank, the composition of an aerobic biochemical system at the rear end is reduced, the oxygen content in the wastewater is adjusted, the biodegradability of the wastewater is improved by one step, and a part of pollutants are removed.
3) Compared with the traditional aerobic biochemical system, the scheme is characterized in that a high-load aerobic biochemical tank at the front section and a medium-load aerobic biochemical tank at the rear end are arranged in series. The aerobic biochemical effect is increased, the aeration system and the suspended filler are additionally arranged in the tank, so that the wastewater is fully contacted with the strains, the aerobic biochemical removal rate is improved, the settled aerobic strains can be instantly returned to the front section by the secondary sedimentation tank at the rear end, the concentration of aerobic sludge is ensured, and the sludge concentration at the front end and the rear end is controlled by the backflow valve to realize controllable regulation.
Drawings
The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.
FIG. 1 is a schematic view of a device for treating toxic wastewater from resin production.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
As shown in figure 1, the toxic wastewater treatment equipment for resin production provided by the utility model comprises a workshop mixed wastewater treatment line and a high-concentration toxic wastewater treatment line; the mixed waste water production line in workshop is including the oil removal grit chamber, the waste water equalizing basin that communicate in proper order, be equipped with the PH equalizing basin of calcium hydroxide dosing pump, just sink pond, intermediate water pond, UASB anaerobic reactor, hydrolysis-acidification pool, high load good oxygen biochemical pond, well load good oxygen biochemical pond, two sink ponds, active carbon reaction sedimentation tanks, two sink ponds and well load good oxygen biochemical pond respectively through return water pipeline with high load good oxygen biochemical pond intercommunication.
The high-concentration toxic wastewater treatment line comprises a high-concentration toxic wastewater adjusting tank and a Fenton oxidation sedimentation tank which are sequentially communicated; the primary sedimentation tank, the medium-load aerobic biochemical tank and the Fenton oxidation sedimentation tank are communicated with a sludge tank, the sludge tank is connected with a membrane filter press, filtrate pressed by the membrane filter press is guided into the oil separation grit chamber through a pipeline, and the Fenton oxidation sedimentation tank is communicated with a wastewater adjusting tank.
Wherein the primary sedimentation tank is provided with a ferrous sulfate dosing pump and a PAM dosing pump;
the Fenton oxidation sedimentation tank is provided with a ferrous sulfate dosing pump, a hydrogen peroxide dosing pump, an alkali dosing pump, a PAC dosing pump and a PAM dosing pump;
the activated carbon reaction sedimentation tank is provided with an activated carbon dosing pump, a PAC dosing pump and a PAM dosing pump;
the high-load aerobic biochemical tank and the medium-load aerobic biochemical tank are both provided with a fan and a condenser.
Aeration systems are arranged in the high-load aerobic biochemical tank and the medium-load aerobic biochemical tank, and suspended fillers are added in the aeration systems.
The working principle is as follows: and (2) separately collecting high-concentration toxic wastewater in a workshop, discharging the high-concentration toxic wastewater into a high-concentration toxic wastewater adjusting tank, pumping the high-concentration toxic wastewater into a Fenton oxidation sedimentation tank for treatment, adding alkali to adjust the pH to 3-4, adding a proper amount of ferrous sulfate to react for 15 minutes, adding hydrogen peroxide to react for 2 hours, adding a proper amount of PAC, PAM and alkali, and precipitating in a precipitation zone after the reaction. The supernatant after precipitation is also discharged to an oil separation regulating reservoir to be mixed with low-concentration wastewater for treatment, and the precipitated sludge is discharged to a sludge tank.
Mixed wastewater in a workshop is collected by a pipeline and then discharged to an oil separation grit chamber, the wastewater is subjected to oil removal and resin precipitation in the grit chamber, and floating oil and precipitated resin are periodically and manually fished. The treated wastewater automatically flows into a wastewater adjusting tank.
The wastewater adjusting tank is internally provided with a hyperboloid stirrer which can effectively balance water quality, the homogenized wastewater is pumped into a PH adjusting tank by a sewage pump, a proper amount of lime is added to adjust the PH to 8-9, then the wastewater flows to the primary sedimentation tank, a proper amount of ferrous sulfate and PAM medicament are added to react fully and then precipitate in a sedimentation zone, the supernatant after the precipitation flows to an intermediate water tank, then a UASB (upflow anaerobic sludge blanket) anaerobic reactor is used for treatment by the pump, the retention time is longer than 18 hours, and the wastewater after the anaerobic treatment flows to a hydrolysis acidification tank. The residence time of the hydrolysis acidification tank is more than 9 hours. The mixed liquid after hydrolytic acidification treatment automatically flows to a high-load aerobic biochemical tank. The biochemical residence time is greater than 24 hours. The treated mixed liquid is pumped to the original aerobic biochemical system by a pump, and the biochemical retention time is longer than 12 hours. The total aerobic biochemical retention time is more than 36 hours. The mixed liquid after aerobic biochemical treatment automatically flows to a secondary sedimentation tank, the sludge after sedimentation flows back to a high-load aerobic biochemical tank, and the supernatant can be discharged after reaching the standard. Meanwhile, an activated carbon reaction sedimentation tank is additionally arranged at the rear end of the secondary sedimentation tank for customs control treatment, and if the effluent does not reach the standard, the final customs control treatment is carried out through activated carbon adsorption, so that the wastewater is ensured to stably reach the standard.
Sludge in the primary sedimentation tank, the medium-load aerobic biochemical tank and the Fenton oxidation sedimentation tank is periodically discharged to a sludge tank, the sludge in the sludge tank is concentrated and then pumped to a membrane filter press by a sludge pump for solid-liquid separation, filtrate flows back to the oil-separation wastewater adjusting tank, and dry sludge is safely treated according to the requirements of local environmental protection departments.
The wastewater treatment effect of the utility model is shown in the following table.
Wastewater treatment effect table (unit: mg/l)
The effluent of the resin production toxic wastewater treated by the equipment reaches the third-level standard in Integrated wastewater discharge Standard (GB 33-1996), wherein the ammonia nitrogen executes the limit in Indirect discharge Limit of Nitrogen and phosphorus pollutants of Industrial enterprises (DB 33/887-2013).
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (8)
1. The toxic wastewater treatment equipment for resin production is characterized by comprising a workshop mixed wastewater treatment line and a high-concentration toxic wastewater treatment line; the workshop mixed wastewater production line comprises an oil separation grit chamber, a wastewater adjusting tank, a PH adjusting tank, a primary settling tank, an intermediate water tank, a UASB (upflow anaerobic sludge blanket) anaerobic reactor, a hydrolysis acidification tank, a high-load aerobic biochemical tank, a medium-load aerobic biochemical tank, a secondary settling tank and an active carbon reaction settling tank which are sequentially communicated, wherein the secondary settling tank and the medium-load aerobic biochemical tank are respectively communicated with the high-load aerobic biochemical tank through a water return pipeline; the high-concentration toxic wastewater treatment line comprises a high-concentration toxic wastewater adjusting tank and a Fenton oxidation sedimentation tank which are sequentially communicated; the primary sedimentation tank, the medium-load aerobic biochemical tank and the Fenton oxidation sedimentation tank are communicated with a sludge tank, the sludge tank is connected with a membrane filter press, and the Fenton oxidation sedimentation tank is also communicated with the wastewater adjusting tank.
2. The toxic wastewater treatment equipment for resin production according to claim 1, wherein the filtrate pressed by the membrane filter press is introduced into the oil removal grit chamber through a pipeline.
3. The toxic wastewater treatment equipment for resin production according to claim 1, wherein the pH adjusting tank is provided with a calcium hydroxide dosing pump.
4. The toxic wastewater treatment equipment for resin production according to claim 1, wherein the primary sedimentation tank is provided with a ferrous sulfate dosing pump and a PAM dosing pump.
5. The toxic wastewater treatment equipment for resin production according to claim 1, wherein the Fenton oxidation sedimentation tank is provided with a ferrous sulfate dosing pump, a hydrogen peroxide dosing pump, an alkali dosing pump, a PAC dosing pump and a PAM dosing pump.
6. The toxic wastewater treatment equipment for resin production according to claim 1, wherein the activated carbon reaction sedimentation tank is provided with an activated carbon dosing pump, a PAC dosing pump and a PAM dosing pump.
7. The toxic wastewater treatment equipment for resin production according to claim 1, wherein the high-load aerobic biochemical tank and the medium-load aerobic biochemical tank are provided with a fan and a condenser.
8. The toxic wastewater treatment equipment for resin production according to claim 1, wherein aeration systems are arranged in the high-load aerobic biochemical tank and the medium-load aerobic biochemical tank, and suspended fillers are added in the aeration systems.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921078276.6U CN210237408U (en) | 2019-07-11 | 2019-07-11 | Poisonous waste water treatment equipment of resin production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921078276.6U CN210237408U (en) | 2019-07-11 | 2019-07-11 | Poisonous waste water treatment equipment of resin production |
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| CN210237408U true CN210237408U (en) | 2020-04-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956446A (en) * | 2022-04-07 | 2022-08-30 | 武汉中测联环境技术有限公司 | Zero release recycling system of pharmaceutical chemical industry waste water |
| CN115784491A (en) * | 2022-11-02 | 2023-03-14 | 河北能先环保科技有限公司 | Treatment method of high-viscosity sewage |
-
2019
- 2019-07-11 CN CN201921078276.6U patent/CN210237408U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956446A (en) * | 2022-04-07 | 2022-08-30 | 武汉中测联环境技术有限公司 | Zero release recycling system of pharmaceutical chemical industry waste water |
| CN115784491A (en) * | 2022-11-02 | 2023-03-14 | 河北能先环保科技有限公司 | Treatment method of high-viscosity sewage |
| CN115784491B (en) * | 2022-11-02 | 2024-02-13 | 河北能先环保科技有限公司 | Treatment method of high-viscosity sewage |
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