CN212174735U - System for be used for handling rubber auxiliary agent CBS waste water - Google Patents
System for be used for handling rubber auxiliary agent CBS waste water Download PDFInfo
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- CN212174735U CN212174735U CN202020604936.6U CN202020604936U CN212174735U CN 212174735 U CN212174735 U CN 212174735U CN 202020604936 U CN202020604936 U CN 202020604936U CN 212174735 U CN212174735 U CN 212174735U
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Abstract
The utility model discloses a system for be used for handling rubber auxiliary agent CBS waste water, including pretreatment systems, biochemical treatment system and advanced treatment system, CBS waste water gets into the equalizing basin behind the grid, and waste water after the pretreatment gets into ABR anaerobic reaction pond, and the process is filtered the elevator pump and is promoted to filter jar further purification back discharge to reach standard. The utility model discloses decontamination effect is showing, easy to manage and maintain, has overcome not enough that exist among the current rubber auxiliary agent CBS waste water treatment technique, has not only satisfied the requirement of waste water treatment strict day by day, has ensured the water environmental safety that the mankind relied on to survive simultaneously.
Description
Technical Field
The utility model belongs to the industrial wastewater treatment field relates to a system for be used for handling rubber auxiliary agent CBS waste water, specifically is a system that is used for advanced treatment high concentration, difficult degradation rubber auxiliary agent CBS waste water of producing specially.
Technical Field
At present, the process combining 'pretreatment and biochemical treatment' is mostly used for treating rubber auxiliary agent production wastewater, and the process is the most mature and common method for the development of the industrial wastewater treatment technology at present. The pretreatment process comprises chemical catalytic oxidation, a photocatalytic oxidation method and the like, and is limited in application due to high oxidant cost and poor photocatalytic effect; the conventional biochemical treatment process comprises an aerobic process, an anaerobic process and an aerobic-anaerobic combined process, but cannot meet the increasingly strict water treatment requirement due to the limited treatment capacity.
The rubber auxiliary agent CBS production wastewater belongs to high-concentration and non-degradable industrial wastewater, the components of wastewater pollutants are complex, and the biodegradability is extremely poor, and at present, a treatment system special for the high-concentration and non-degradable rubber auxiliary agent CBS production wastewater does not exist, so that the wastewater treatment system equipment can be ensured to stably operate for a long time, and the quality of effluent water is stable and reaches the standard, so that the stricter wastewater discharge requirement is met.
SUMMERY OF THE UTILITY MODEL
In order to overcome exist not enough among the above-mentioned prior art, the utility model provides a decontamination effect is showing, easy to manage maintains, the system that is used for handling rubber auxiliary agent CBS waste water specially, adopt "aeration iron carbon microelectrolysis + Fenton oxidation + ABR + AO + coagulating sedimentation + adsorption filtration" combined process to handle waste water, guarantee that rubber auxiliary agent CBS waste water production facility can long-term steady operation, it is up to standard to go out the water stabilization of quality to effectively reduce the harm of waste water to receiving the water, constantly improve the water environment that the human beings relied on to survive.
The purpose of the utility model is realized like this:
a system for processing rubber auxiliary agent CBS waste water, its characterized in that: the method comprises the steps of arranging a grid 2 in a grid well 1, enabling wastewater to enter an adjusting tank 3 after passing through the grid 2, lifting the wastewater to an iron-carbon micro-electrolysis reaction tower 7 and a catalytic reaction integrated device 9 for pretreatment through an adjusting tank lifting pump 4, enabling the pretreated wastewater to enter an ABR anaerobic reaction tank 10, mixing, acidifying and further improving biodegradability of the wastewater, enabling the wastewater to sequentially enter an anoxic tank 13 and an aerobic tank 15 for anoxic and aerobic reactions respectively, enabling effluent of the aerobic tank 15 to enter a secondary sedimentation tank 18 for mud-water separation, enabling effluent of the secondary sedimentation tank 18 to automatically flow into a coagulation reaction sedimentation tank 21, further performing flocculation, precipitation and separation on pollutants, enabling effluent of the coagulation reaction sedimentation tank 21 to enter a water collecting tank 24 for collection and storage, lifting the effluent to a filter tank 26 through a filter lifting pump 25 for further purification, and enabling the effluent to reach the standard to be discharged through a.
The grating 2 is connected with the adjusting tank 3, and the grating 2 is used for intercepting large-size floating objects and suspended matters in the sewage; the adjusting tank 3 is used for adjusting water quantity and homogenizing water quality, and is additionally provided with an air blower 33 for timed micro-aeration.
Sulfuric acid in a sulfuric acid tank 5 is added into the iron-carbon micro-electrolysis reaction tower 7 through a sulfuric acid dosing pump 6 so as to adjust the acidity of the CBS production wastewater, and organic matters in the wastewater react with iron-carbon micro-electrolysis fillers 8 under an acidic condition to degrade the organic matters so as to purify water.
The catalytic reaction integrated equipment 9 comprises the stages of catalysis, coagulation, precipitation and the like in H2O2(Hydrogen peroxide) dosing tank 34 and FeSO4(ferrous sulfate) in a medicine adding tank 37, passing through H2O2The dosing pipeline 37 and FeSO4Adding a drug pipeline 40, adding a Fenton reagent (comprising hydrogen peroxide and ferrous sulfate) for catalytic oxidation reaction in an air stirring mannerThe generated iron ions react with hydroxide radicals provided by the NaOH dosing pipeline 43 to generate ferric hydroxide colloid precipitate, and the ferric hydroxide colloid precipitate and Polyacrylamide (PAM) added by the PAM dosing pipeline 46 are subjected to coagulation reaction to form alum floc easy to precipitate, the stirring mode is mechanical stirring, precipitate formed by the coagulation reaction is precipitated in a precipitation tank, the generated sludge enters the sludge concentration tank 30, and supernatant automatically flows into the ABR anaerobic reaction tank 10.
The ABR anaerobic reaction tank 10 is provided with ABR filler 12 which is connected with an ABR internal reflux pump 11 for anaerobic biodegradation treatment.
The anoxic tank 13 utilizes the mixed liquid containing nitrate nitrogen which flows back from the wastewater and the aerobic tank 15 and the sludge which flows back from the secondary sedimentation tank 18 to carry out denitrification reaction under the action of the flow pushing device 14, the nitrate nitrogen in the wastewater is converted into gaseous nitrogen and then is removed from the wastewater, and meanwhile, organic matters in the wastewater are utilized by denitrifying bacteria to be removed from the wastewater.
The aerobic tank 15 utilizes the blower 33 to provide oxygen required by aerobic reaction, under aerobic conditions, microorganisms attached to the three-dimensional elastic filler 16 decompose and digest pollutants in water, organic matters are degraded into water and carbon dioxide, most of the pollutants are removed, water quality is purified, and meanwhile, a nitrifying liquid reflux pump 17 is utilized to reflux nitrifying liquid to the anoxic tank 13.
The secondary sedimentation tank 18 is provided with a secondary sedimentation tank sludge discharge pump 20, under the action of a secondary sedimentation tank filler 19, activated sludge and other solid matters suspended in the sludge are precipitated and separated from water, most of the precipitated sludge is taken as inoculation sludge and flows back to the aerobic tank 15, and the rest sludge is discharged to a sludge concentration tank 30.
The coagulation reaction sedimentation tank 21, the reaction zone and the sedimentation zone are respectively provided with a stirrer 22 and an inclined tube filler 23, a PAC/PAM coagulant and a coagulant aid are added into water through a PAM dosing pipeline 46 and a PAC dosing pipeline 49, so that particles which are difficult to precipitate in the water can be mutually polymerized to form colloid, then the colloid is combined with impurities in the water body to form a larger flocculating constituent, and the residual sludge is discharged to the sludge concentration tank 30 through a sludge discharge pump 34 of the coagulation reaction sedimentation tank.
The water collecting tank 24 is used for collecting the effluent of the coagulation reaction sedimentation tank 21 and providing a stable water source for a rear-end filtering system.
The filtering tank 26 guides the water from the water collecting tank 24 to the tank by means of a filtering lift pump 25, distributes the water uniformly by a filtering tank water distributor 27, performs backwashing on the activated carbon filler 28 under the action of a backwashing system 29 after running for a period of time, and makes backwashing water enter the regulating tank 3, and further removes pollutants in the wastewater by utilizing the adsorption action of the activated carbon.
The rear end of the sludge concentration tank 30 is provided with a sludge screw pump 31, sludge is conveyed to a sludge dewatering machine 32, dewatered sludge is transported out for treatment, and the effluent of the sludge dewatering machine 32 enters the regulating tank 3.
The residual sludge generated by the catalytic reaction integrated equipment 9, the ABR anaerobic reaction tank 10, the secondary sedimentation tank 18 and the coagulation reaction sedimentation tank 21 enters a sludge concentration tank 30, the supernatant of the sludge concentration tank 30 flows back to the regulating tank 3, the sludge in the sludge concentration tank 30 is subjected to pressure filtration and dehydration by a sludge dehydrator 32 and then is transported outwards for disposal, and the pressure filtrate returns to the regulating tank 3.
Has the positive and beneficial effects that: the utility model relates to a get rid of the effect and show, easy to manage and maintain, be used for handling the system of high concentration, difficult degradation rubber auxiliary agent CBS industrial waste water specially, overcome not enough that exists among the current rubber auxiliary agent CBS industrial waste water treatment technique, not only satisfied water treatment requirement strict day by day, ensured the water environmental safety that human beings rely on to survive simultaneously.
Drawings
Figure 1 schematic diagram of the system structure of the present invention
In the figure: a grating well 1, a grating 2, an adjusting tank 3, an adjusting tank lift pump 4, a sulfuric acid tank 5, a sulfuric acid dosing pump 6, an iron-carbon micro-electrolysis reaction tower 7, an iron-carbon micro-electrolysis filler 8, a catalytic reaction integrated device 9, an ABR anaerobic reaction tank 10, an ABR internal reflux pump 11, an ABR filler 12, an anoxic tank 13, a flow impeller 14, an aerobic tank 15, a three-dimensional elastic filler 16, a nitrifying liquid reflux pump 17, a secondary sedimentation tank 18, a secondary sedimentation tank filler 19, a secondary sedimentation tank mud pump 20, a coagulation reaction sedimentation tank 21, a stirrer 22, an inclined pipe filler 23, a water collecting tank 24, a filtering lift pump 25, a filtering tank 26, a filtering tank water distributor 27, a water collecting tank 24, a,Active carbon filler 28, backwashing system 29, sludge concentration tank 30, sludge screw pump 31, sludge dewatering machine 32, blower 33, sludge discharge pump 34 of coagulation reaction sedimentation tank, and H2O2Medicine adding pot 35, H2O2Dosing pump 36, H2O2Dosing pipeline 37 and FeSO4Medicine adding tank 38 and FeSO4Dosing pump 39, FeSO4A dosing pipeline 40, a NaOH dosing tank 41, a NaOH dosing pump 42, a NaOH dosing pipeline 43, a PAM dosing tank 44, a PAM dosing pump 45, a PAM dosing pipeline 46, a PAC dosing tank 47, a PAC dosing pump 48 and a PAC dosing pipeline 49.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in figure 1, a system for treating wastewater generated in CBS production of rubber auxiliary agents is characterized in that: the device comprises a grid well 1 and a regulating tank 3 connected with the grid well, wherein a grid 2 is arranged in the grid well 1, wastewater is lifted to an iron-carbon micro-electrolysis reaction tower 7 and a catalytic reaction integrated device 9 for pretreatment through a regulating tank lifting pump 4, then enters an ABR anaerobic reaction tank 10 for anaerobic biodegradation treatment, effluent sequentially enters an anoxic tank 13 and an aerobic tank 15 for anoxic and aerobic reactions respectively, effluent of the aerobic tank 15 enters a secondary sedimentation tank 18 for mud-water separation, effluent of the secondary sedimentation tank 18 naturally flows into a coagulation reaction sedimentation tank 21, pollutants are further subjected to flocculation precipitation separation, effluent of the coagulation reaction sedimentation tank 21 enters a water collecting tank 24 for collection and storage, and is lifted to a filter tank 26 through a filter lifting pump 25 for further purification and then is discharged up to the standard.
The production wastewater enters a grating well 1, and large-size floating objects and suspended matters in the wastewater are intercepted by a grating 2; the adjusting tank 3 is connected with the grid well 1 and used for adjusting water quantity and homogenizing water quality, and an air blower 33 is additionally arranged and used for timed micro-aeration.
The wastewater enters an iron-carbon micro-electrolysis reaction tower 7, sulfuric acid in a sulfuric acid tank 5 is fed to the iron-carbon micro-electrolysis reaction tower 7 through a sulfuric acid dosing pump 6 so as to adjust the acidity of the CBS production wastewater, and organic matters in the wastewater and iron-carbon micro-electrolysis fillers 8 react under an acidic condition to degrade the organic matters, so that the water quality is purified.
The wastewater enters the catalysis in sequenceReaction integration apparatus 9 in H2O2Dosing tank 35 and FeSO4In the medicine adding pot 38, respectively pass through H2O2The dosing pipeline 37 and FeSO4Adding a medicine pipeline 40, adding a Fenton reagent to perform catalytic oxidation reaction, wherein the stirring mode is air stirring, iron ions generated by catalytic oxidation react with hydroxyl provided by a NaOH medicine adding pipeline 43 to generate ferric hydroxide colloidal precipitate, and the ferric hydroxide colloidal precipitate and polyacrylamide added by a PAM medicine adding pipeline 46 perform coagulation reaction to form alum blossom easy to precipitate, the stirring mode is mechanical stirring, precipitate formed by the coagulation reaction is precipitated in a precipitation tank, the generated sludge enters a sludge concentration tank 30, and supernatant automatically flows into an ABR anaerobic reaction tank 10.
An ABR filler 12 is arranged in the ABR anaerobic reaction tank 10 and is connected with an ABR internal reflux pump 11 to carry out anaerobic biodegradation treatment on the wastewater.
In the anoxic tank 13, denitrification reaction is performed by using the mixed liquid containing nitrate nitrogen which flows back from the wastewater and the aerobic tank 15 and the sludge which flows back from the secondary sedimentation tank 18 under the action of the flow pushing device 14, the nitrate nitrogen in the wastewater is converted into gaseous nitrogen and then removed from the wastewater, and meanwhile, organic matters in the wastewater are removed from the wastewater by using denitrifying bacteria.
In the aerobic tank 15, an air blower 33 is used for providing oxygen, microorganisms attached to the three-dimensional elastic filler 16 decompose and digest pollutants in water, organic matters are degraded into water and carbon dioxide, most of the pollutants are removed, water quality is purified, and meanwhile, a nitrifying liquid reflux pump 17 is used for refluxing nitrifying liquid to the anoxic tank 13.
A secondary sedimentation tank sludge discharge pump 20 is arranged in the secondary sedimentation tank 18, under the action of a secondary sedimentation tank filler 19, activated sludge and other solid matters suspended in the sludge are precipitated and separated from water, most of the sludge after precipitation and concentration is taken as inoculated sludge and flows back to the aerobic tank 15, and the rest sludge is discharged to a sludge concentration tank 30.
In the coagulation reaction sedimentation tank 21, the stirrer 22 and the inclined tube filler 23 are respectively arranged in the reaction zone and the sedimentation zone, the PAC/PAM coagulant and coagulant aid are respectively added into water through a PAM dosing pipeline 46 and a PAC dosing pipeline 49 in a PAM dosing tank 44 and a PAC dosing tank 47, so that particles which are difficult to precipitate in the water can be mutually polymerized to form colloid, then the colloid is combined with impurities in the water body to form a larger flocculating constituent, and the residual sludge is discharged to the sludge concentration tank 30 through a coagulation reaction sedimentation tank sludge discharge pump 34.
The water collecting tank 24 is used for collecting the effluent of the coagulation reaction sedimentation tank 21 and providing a stable water source for a rear-end filtering system.
And a filtering tank 26, wherein the water from the water collecting tank 24 is introduced to the tank through a filtering lift pump 25, the water is uniformly distributed through a filtering tank water distributor 27, after a period of operation, the activated carbon filler 28 is backwashed under the action of a backwashing system 29, the backwashing water enters the regulating tank 3, and pollutants in the wastewater are further removed by utilizing the adsorption effect of the activated carbon.
The rear end of the sludge concentration tank 30 is provided with a sludge screw pump 31, sludge is transported to a sludge dewatering machine 32, dewatered sludge is transported out for treatment, and the effluent of the sludge dewatering machine 32 enters the adjusting tank 3.
The residual sludge generated by the catalytic reaction integrated equipment 9, the ABR anaerobic reaction tank 10, the secondary sedimentation tank 18 and the coagulation reaction sedimentation tank 21 enters a sludge concentration tank 30, the supernatant of the sludge concentration tank 30 flows back to the regulating tank 3, the sludge in the sludge concentration tank 30 is subjected to pressure filtration and dehydration by a sludge dehydrator 32 and then is transported outwards for disposal, and the pressure filtrate returns to the regulating tank 3.
Example 1
The wastewater amount of a sewage treatment station of a rubber auxiliary CBS production enterprise in Henan is 350m3The quality of inlet water is COD5600mg/L, BOD51500mg/L、TN250mg/L。
The grating well 1 is arranged, and the artificial grating 2 is obliquely arranged in a water inlet channel to intercept larger suspended matters and impurities in sewage and ensure the normal operation of subsequent treatment structures or equipment.
The effective volume of the adjusting tank 3 is 330m3The front end of the device is connected with the grid well 1 and is provided with two regulating reservoir lifting pumps 4 (one for one) and a set of regulating reservoir micro-aeration device, and the air blower 33 is used for carrying out air aeration stirring on the regulating reservoir micro-aeration device, so that muddy water is uniformly mixed, and sludge deposition is effectively prevented.
The iron-carbon micro-electrolysis reaction tower 7 is provided with two iron-carbon micro-electrolysis reaction towers and stringsThe combined operation is carried out, the total hydraulic retention time is 2h, the sulfuric acid in the sulfuric acid tank 5 enters the iron-carbon micro-electrolysis reaction tower 7 through the sulfuric acid dosing pump 6 so as to adjust the acidity of the CBS production wastewater, and organic matters in the wastewater and iron-carbon micro-electrolysis filler 8 (the volume is 25 m) under the acidic condition3) Acts to degrade organic matters and purify water.
Two sets of catalytic reaction integrated equipment 9 are arranged and run in parallel. The effective volume of a single unit is 34m3The hydraulic retention time is 4.5 h. At H2O2 Dosing tank 35 and FeSO4In the medicine adding pot 38, respectively pass through H2O2The dosing pipeline 37 and FeSO4Adding a Fenton reagent into the medicine pipeline 40 for catalytic oxidation reaction. Iron ions generated by catalytic oxidation react with hydroxide radicals provided by the NaOH dosing pipeline 43 to generate ferric hydroxide colloidal precipitate, and the ferric hydroxide colloidal precipitate and polyacrylamide added by the PAM dosing pipeline 46 undergo coagulation reaction to form alum floc easy to precipitate. The precipitate formed by the coagulation reaction is precipitated in a precipitation tank, the generated sludge enters a sludge concentration tank 30, and the supernatant automatically flows into an ABR anaerobic reaction tank 10.
The ABR anaerobic reaction tank 10 is provided with two grids which are operated in parallel, the total size is 12.0 multiplied by 6.0 multiplied by 5.0m, and the effective volume is 300m3The hydraulic retention time is about 20h, two ABR internal reflux pumps 11 (one for one) are arranged, and the volume of the ABR filler 12 is 200m3And is connected with an ABR internal reflux pump 11 to carry out anaerobic biodegradation treatment on the wastewater.
The anoxic pond 13 is provided with two grids which are connected in parallel, the total size is 12.0 multiplied by 6.5 multiplied by 5.0m, and the effective volume is 350m3The hydraulic retention time is 24h, and four flow pushers 14 are arranged. The mixed liquid containing nitrate nitrogen which flows back from the wastewater and the aerobic tank 15 and the sludge which flows back from the secondary sedimentation tank 18 are used for carrying out denitrification reaction under the action of the impeller 14, the nitrate nitrogen in the wastewater is converted into gaseous nitrogen and then is removed from the water, and meanwhile, organic matters in the wastewater are utilized by denitrifying bacteria and are removed from the wastewater.
The aerobic tank 15 is provided with two grids, the total size is 12.0 multiplied by 10.0 multiplied by 5.0m, and the effective volume is 497m3The hydraulic retention time is about 34h, and two blowers 33 are arrangedA table (one for one), a blower 33 for supplying oxygen, and a three-dimensional elastic filler 16 (with the volume of 360 m)3) The attached microorganisms decompose and digest pollutants in the water, degrade organic matters into water and carbon dioxide, remove most of the pollutants, and purify the water. Meanwhile, nitrifying liquid is returned to the anoxic tank 13 by using nitrifying liquid return pumps 17 (four nitrifying liquid return pumps, one for one, two for one use and one for standby).
The secondary sedimentation tank 18 is provided with a radial flow type tank with the surface load of 0.74m3/(m2H), two secondary sedimentation tank sludge discharge pumps 20 (one used and one spare) are arranged in the secondary sedimentation tank sludge discharge device, and activated sludge and other solid matters suspended in the sludge are precipitated and separated from water under the action of the secondary sedimentation tank filler 19. Most of the precipitated sludge is returned to the aerobic tank 15 as inoculated sludge, and the remaining sludge is discharged to the sludge concentration tank 30.
The coagulation reaction sedimentation tank 21 is provided with a reaction zone and a sedimentation zone which are respectively provided with a stirrer 22 and an inclined tube filler 23 with the sizes of 2.0 multiplied by 3.0m and 6.0 multiplied by 3.0 multiplied by 5.0m, the coagulation reaction time is 1h, the sedimentation time is 3h, and the surface load of the sedimentation tank is 0.81m3/(m2H). PAC/PAM coagulant and coagulant aid are respectively added into water through a PAM dosing pipeline 46 and a PAC dosing pipeline 49 in a PAM dosing tank 44 and a PAC dosing tank 47, so that particles which are difficult to precipitate in the water can be mutually polymerized to form colloid, and then are combined with impurities in the water body to form larger flocculating constituents. The excess sludge is discharged to the sludge concentration tank 30 through a sludge discharge pump 34 of the coagulation reaction sedimentation tank.
The water collecting tank 24 is provided with a water collecting tank with the size of 4.0 multiplied by 3.0m and the hydraulic retention time of 3h, and is used for collecting the effluent of the coagulation reaction sedimentation tank 21 and providing a stable water source for a rear-end filtering system.
Two filter tanks 26 are arranged (one for one), the water from the water collecting tank 24 is led to the tank through a filter lift pump 25 (two for one), water is uniformly distributed through filter tank water distributors 27 (two sets), and after a period of operation, under the action of a backwashing system 29 (two sets), activated carbon fillers 28 (with the volume of 6 m) are subjected to water distribution3) And (4) performing backwashing, wherein backwashing water enters the regulating tank 3. Further removing by active carbon adsorptionRemoving pollutants in the wastewater.
The sludge concentration tank 30 is provided with a sludge screw pump 31 at the back, the sludge is conveyed to a sludge dewatering machine 32, the dewatered sludge is transported out for treatment, and the effluent of the sludge dewatering machine 32 enters the adjusting tank 3.
Wherein, the residual sludge generated by the catalytic reaction integrated equipment 9, the ABR anaerobic reaction tank 10, the secondary sedimentation tank 18 and the coagulation reaction sedimentation tank 21 enters a sludge concentration tank 30. The supernatant of the sludge concentration tank 30 flows back to the adjusting tank 3, the sludge in the sludge concentration tank 30 is treated by outward transportation after being subjected to pressure filtration and dehydration by the sludge dehydrator 32, and the pressure filtrate returns to the adjusting tank 3.
The effluent quality after the sewage treatment system of the pretreatment, the biochemical treatment and the advanced treatment is as follows:
COD≤150mg/L、BOD5≤30mg/L。
the wastewater treatment system is not only suitable for a wastewater advanced treatment system for CBS production of rubber auxiliary agents, but also suitable for wastewater of other industries with similar characteristics.
The above examples are only for illustrating the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included within the scope of the claimed technical solution of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A system for processing rubber auxiliary agent CBS waste water, its characterized in that: the device comprises a grid well (1) and a regulating reservoir (3) connected with the grid well, wherein a grid (2) is arranged in the grid well (1), wastewater is lifted to an iron-carbon micro-electrolysis reaction tower (7) and a catalytic reaction integrated device (9) for pretreatment through a regulating reservoir lifting pump (4), then enters an ABR anaerobic reaction tank (10) for anaerobic biodegradation treatment, effluent sequentially enters an anoxic tank (13) and an aerobic tank (15) for anoxic and aerobic reactions respectively, effluent of the aerobic tank (15) enters a secondary sedimentation tank (18) for mud-water separation, effluent of the secondary sedimentation tank (18) naturally flows into a coagulation reaction sedimentation tank (21), pollutants are further subjected to flocculation precipitation separation, effluent of the coagulation reaction sedimentation tank (21) enters a water collecting tank (24) for collection and storage, and is lifted to a filter tank (26) through a filter lifting pump (25) for further purification and then is discharged up to the standard.
2. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: the grating (2) is connected with the adjusting tank (3), and the grating (2) is used for intercepting large-size floating objects and suspended matters in the sewage; the adjusting tank (3) is used for adjusting water quantity and homogenizing water quality, and is additionally provided with an air blower (33) for timed micro-aeration.
3. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: sulfuric acid in a sulfuric acid tank (5) is added into the iron-carbon micro-electrolysis reaction tower (7) through a sulfuric acid dosing pump (6) so as to adjust the acidity of the CBS production wastewater, and organic matters in the wastewater react with iron-carbon micro-electrolysis fillers (8) under an acidic condition to degrade the organic matters, so that the water quality is purified.
4. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: the catalytic reaction integrated equipment (9) comprises a catalysis stage, a coagulation stage and a precipitation stage in H2O2A medicine adding tank (35) and FeSO4In the medicine adding pot (38), the medicine is added through H2O2A drug adding pipeline (37) and FeSO4Add medicine pipeline (40), add Fenton reagent and carry out catalytic oxidation reaction, the stirring mode is air stirring, iron ion that catalytic oxidation produced and the hydroxyl that adds medicine pipeline (43) through NaOH take place the reaction and generate ferric hydroxide colloid and deposit, and with PAM that adds medicine pipeline (46) through PAM and take place coagulation reaction, form the alum blossom that easily deposits, the stirring mode is mechanical stirring, the precipitate that the coagulation reaction formed deposits at the precipitation tank, the mud that generates gets into sludge concentration tank (30), the supernatant flows automatically and gets into ABR anaerobic reaction pond (10).
5. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: the ABR anaerobic reaction tank (10) is provided with an ABR filler (12) which is connected with an ABR internal reflux pump (11) for anaerobic biodegradation treatment.
6. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: the anoxic tank (13) utilizes the mixed liquid containing nitrate nitrogen and returned from the wastewater and the aerobic tank (15) and the sludge returned from the secondary sedimentation tank (18) to carry out denitrification reaction under the action of the flow pushing device (14), the nitrate nitrogen in the wastewater is converted into gaseous nitrogen and then is removed from the water, and meanwhile, organic matters in the wastewater are utilized by denitrifying bacteria and are removed from the wastewater.
7. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: the secondary sedimentation tank (18) is provided with a secondary sedimentation tank sludge discharge pump (20), under the action of a secondary sedimentation tank filler (19), activated sludge and other solid matters suspended in the sludge are precipitated and separated from water, most of the sludge subjected to precipitation and concentration is used as inoculation sludge and flows back to the aerobic tank (15), and the residual sludge is discharged to a sludge concentration tank (30).
8. The system for treating wastewater from the CBS production of rubber auxiliary agents as claimed in claim 1, wherein: the water collecting tank (24) is used for collecting the effluent of the coagulation reaction sedimentation tank (21) and providing a stable water source for a rear-end filtering system.
9. The system for treating wastewater from CBS production as a rubber auxiliary according to claim 4, wherein: the sludge concentration tank (30) is followed by a sludge screw pump (31), sludge is transported to a sludge dewatering machine (32), dewatered sludge is transported out for treatment, and the effluent of the sludge dewatering machine (32) enters the regulating tank (3).
10. The system for treating wastewater from CBS production as a rubber auxiliary according to any of claims 4, 5, 7 and 8, wherein: the catalytic reaction integrated device (9), the ABR anaerobic reaction tank (10), the secondary sedimentation tank (18) and the coagulation reaction sedimentation tank (21) generate excess sludge, the excess sludge enters the sludge concentration tank (30), supernatant of the sludge concentration tank (30) flows back to the regulating tank (3), sludge in the sludge concentration tank (30) is subjected to filter pressing and dehydration by a sludge dewatering machine (32) and then is transported and disposed, and filter pressing liquid returns to the regulating tank (3).
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