CN102992476B - Process, device and system for biological treatment for internal reflux sewage by magnetic-loading magnetic sludge - Google Patents
Process, device and system for biological treatment for internal reflux sewage by magnetic-loading magnetic sludge Download PDFInfo
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- CN102992476B CN102992476B CN2012103827159A CN201210382715A CN102992476B CN 102992476 B CN102992476 B CN 102992476B CN 2012103827159 A CN2012103827159 A CN 2012103827159A CN 201210382715 A CN201210382715 A CN 201210382715A CN 102992476 B CN102992476 B CN 102992476B
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Abstract
The invention discloses a process, a device and a system for biological treatment for internal reflux sewage by magnetic-loading magnetic sludge, wherein the process, the device and the system for the biological treatment adopt a completely-mixed type active sludge aeration basin, common active sludge is inoculated and a certain amount of magnetic powder is poured in the basin before running, and the common active sludge and the magnetic powder are gradually cultured to be magnetic active sludge during running. A weakly-magnetic solid-liquid separator is arranged on the upper part of a magnetic active sludge biological reaction basin and close to a liquid level, the separator has a main function of performing separation for magnetic active sludge and water on a sludge-water mixture in the reaction basin, the separated magnetic active sludge directly returns into the magnetic active sludge biological reaction basin to increase sludge concentration and treatment efficiency, and the treated clean water which reaches the standard is directly drained. Via the process, the device and the system disclosed by the invention, the efficiency of degrading pollutants and the capacity of resisting an impact load of the treatment system are improved; and moreover, a secondary sedimentation basin, a sludge reflux system and a sludge concentration basin which need to be arranged in the conventional active sludge process are omitted, so that the process is small in floor area, high in treatment efficiency, simple in structure and low in construction cost.
Description
Technical field
The invention belongs to the dirty water living creature processing technique field, but be specifically related to a kind of sewage treatment process and apparatus system that is applicable to the high concentrated organic wastewater of biochemical treatment.
Background technology
The beginning of this century, the magnetic loading technique started to be applied to the water treatment aspect, but was mainly to be used in the process of coagulating sedimentation at present.The magnetic loading technique is mainly to add magnetic (Fe3O4) in flocculation process, and magnetic has played the effect of enhanced flocculation as wadding core, the density of floc particle and particle diameter are improved greatly.In follow-up precipitation part, magnetic loads the settling velocity of flco much larger than common flco, has greatly reduced desilting area.The research that the magnetic loading technique is applied in biological sewage treatment (activated sludge process) is rare in China, and in research abroad, be mainly by add magnetic in the activated sludge reaction pond, obtain the magnetic active sludge, improve solid-liquid separation efficiency, indirectly improve the activated sludge concentration of reactive moieties, comparatively ripe magnetic loads active sludge biological reaction tank technique and mainly contains two kinds at present:
The first technique is that the mixing pit after the active sludge biological reaction tank adds magnetic, and active sludge is combined with magnetic as good flocs unit after (visual particular case adds coagulant aids), then enters the secondary sedimentation basins rapid precipitation; The second technique directly adds magnetic in the active sludge biological reaction tank, and adding a small amount of coagulating agent, the absorption of active sludge flco is attached to the magnetic surface, forms to take the granule sludge that magnetic is core, improve the biomass in reaction tank, to improve the removal efficiency of pollutent; Magnetic mud is through biological reaction tank after follow-up secondary sedimentation basins rapid precipitation, and clear water is discharged, and a part of mud directly refluxes, and excess sludge is through the mud magnetic separator, and magnetic is recycled, and mud is discharged system.
These two kinds of magnetic load the active sludge technology, utilize settling tank to carry out the gravity type boat davit solid-liquid separation.These two kinds of technical approach do not utilize the characteristic of magnetic active sludge well, and solid-liquid separation efficiency is far below the magnetic-type solid-liquid separation, and the activated sludge concentration of bio-reaction zone is also lower.In addition, gravity type boat davit also needs that settling tank is set has increased engineering cost, can not utilize externally-applied magnetic field to improve microbic activity.
Summary of the invention
The object of the invention is to provide a kind of magnetic and loads magnetic mud internal reflux biologic process for treating sewage and apparatus system, processing method of the present invention and system can overcome the deficiency of above existence, the magnetic that after not only having utilized well magnetic to load, active sludge obtains, utilize weak magnetic solid-liquid separator that magnetic mud is directly passed back into to biological reaction tank, further improve the activated sludge concentration of reaction tank, and do not need to arrange second pond.Simultaneously, the residue produced for native system, containing the magnetic active sludge,, by being arranged on the ferromagnetism magnetic mud separator of biological reaction tank outside, is thoroughly separated excess sludge with magnetic, magnetic is sent back in biological reaction tank, and excess sludge is sent to the sludge dewatering system treatment and disposal.
For realizing that the technical scheme that the object of the invention adopts is: a kind of magnetic loads magnetic mud internal reflux biologic process for treating sewage, and its processing step is as follows:
1, cultivate the domestication process.Magnetic active sludge biological reaction tank adopts complete hybrid active sludge aeration tank, inoculates ordinary activated sludge before operation and add a certain amount of magnetic in pond, is in operation and cultivates into gradually the magnetic active sludge.Sewage, by water inlet pipe and the water distribution system that is located at the bottom, aeration tank, evenly enters the active sludge aeration tank; Above the water distribution system of bottom, active sludge aeration tank, evenly lay airline and air-diffuser, adopt the gas blower air supply and through air-diffuser to delivering oxygen in water, required oxygen when meeting the microbiological deterioration pollutent, make ordinary activated sludge and magnetic all in suspended state, said process carries out middle magnetic to be become the wadding karyomorphism by active sludge parcel gradually and becomes the magnetic active sludge, and the magnetic active sludge of suspended state utilizes the organic pollutant in its huge surface-area absorption sewage.
2, normally operation at full capacity.Approach the liquid level place on magnetic active sludge biological reaction tank top some weak magnetic solid-liquid separators are set, weak magnetic solid-liquid separator is comprised of weak magnetic rotation magnetic bucket and semi-cylindrical shaped tank, during work, weak magnetic rotation magnetic bucket its half is submerged in water all the time, second half exposes liquid level, and the rubbernet that it is suitable that the magnetic bucket is selected magneticstrength is made; Tank one side is provided with cleaning shoe along its length, and cleaning shoe is close to weak magnetic rotation magnetic bucket surface, in order to scrape the magnetic active sludge that is attached to magnetic bucket surface.During normal operation is processed at full capacity, one side end face of semi-cylindrical shaped tank is equal with liquid level, so that in magnetic active sludge biological reaction tank, the mud mixture after degraded can enter the clearance space between semi-cylindrical shaped tank and weak magnetic rotation magnetic bucket, the magnetic active sludge can very rapidly be adsorbed by the rubbernet on magnetic bucket surface, simultaneously due to magneticstrength a little less than, magnetic can't separate with active sludge.Rotation along with the magnetic bucket, the magnetic active sludge be adsorbed produces the water surface and is struck off and fall after rise to reaction tank by the cleaning shoe of side, the clear water pipe that clear water after solid-liquid separation arranges from cleaning shoe bottom tank is drawn and is entered clean water basin, and the water outlet concentration of suspension can reach processing requirements.Consider that the magnetic active sludge in the mixture entered in tank may have on a small quantity and by the magnetic bucket, do not adsorbed and be deposited on bottom of gullet under special conditions, so be provided with mud-collecting slot and shore pipe at bottom of gullet, regularly the magnetic active sludge of deposition is discharged to system.The magnitude setting of weak magnetic solid-liquid separator can according to process the water yield the number and process after the size of the concentration of suspension that requires in water outlet choose, and be evenly arranged at reaction tank pond face.
3, get rid of mud.Along with constantly carrying out of magnetic active sludge (micropopulation) degradation of organic substances reaction, the magnetic activated sludge concentration constantly increases, in magnetic active sludge biological reaction tank, the magnetic activated sludge concentration surpasses while designing definite higher limit, and just necessary exclusive segment magnetic active sludge is to guarantee the optimum operation of reaction tank.When the needs spoil disposal, the magnetic active sludge is entered to ferromagnetism mud magnetic separator with a constant static-pressure, magnetic thoroughly separates with active sludge under strong magnetic field action, and magnetic is captured, and residual active sludge is discharged and entered follow-up sludge treating system by the excess sludge discharge pipe.The magnetic trapped in separator is regularly gone out with high pressure water, and evenly is back to biological reaction tank to supplement the magnetic amount by the magnetic return line.
The apparatus system of applying above-mentioned magnetic loading magnetic mud internal reflux biologic process for treating sewage comprises magnetic active sludge biological reaction tank, weak magnetic solid-liquid separator and ferromagnetism mud magnetic separator.Magnetic active sludge biological reaction tank mainly is comprised of biological reaction tank pond body, water inlet and the activated sludge discharged control valve of water distribution system, air intake duct, air-diffuser and remanence.Some weak magnetic solid-liquid separators are installed in body internal upper part position, magnetic active sludge biological reaction tank pond, and this weak magnetic solid-liquid separator is comprised of semi-cylindrical shaped tank and weak magnetic rotation magnetic bucket; Semi-cylindrical shaped tank bottom is provided with mud-collecting slot, the mud-collecting slot side is connected with the heavy mud bleed valve of mud-collecting slot, heavy mud delivery pipe, semi-cylindrical shaped sink top one side is equipped with cleaning shoe, is connected with weak magnetic solid-liquid separator rising pipe on the semi-cylindrical shaped tank of cleaning shoe one side; Weak magnetic rotation magnetic bucket by surperficial round shape rubbernet, round shape a little less than magnetic rotation magnetic bucket inner support frame, weak magnetic rotation magnetic bucket transmission shaft and driving motor form.Ferromagnetism mud magnetic separator mainly is comprised of ferromagnetism mud magnetic separator shell, insulation gas cloud, magnetic conduction iron-clad layer, insulation oil reservoir, stainless steel base, iron core, wire coil.
Magnetic loading magnetic mud internal reflux biologic process for treating sewage of the present invention and apparatus system solid-liquid separation efficiency are high, in reaction tank, activated sludge concentration is greatly improved, and secondary sedimentation basins and sludge thickener have been saved, make this technique floor space little, processing efficiency is high, simple in structure, construction cost is low.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is that magnetic loads magnetic mud internal reflux biologic process for treating sewage orthographic plan.
Fig. 2 is that magnetic loads magnetic mud internal reflux biologic process for treating sewage sectional view.
Fig. 3 is weak magnetic solid-liquid separator orthographic plan.
Fig. 4 is weak magnetic solid-liquid separator sectional view.
Fig. 5 is the internal structure profile in plan of ferromagnetism mud magnetic separator.
Fig. 6 is the sectional side elevation of ferromagnetism mud magnetic separator.
1. water inlet and water distribution systems in figure, 2. air intake duct, 3. magnetic active sludge biological reaction tank, 4. semi-cylindrical shaped tank, 5. weak magnetic rotation magnetic bucket, 6. weak magnetic solid-liquid separator rising pipe, 7. clean water basin, 8. clear water delivery pipe, 9. high pressure washing water pump, 10. high pressure washing pipeline, 11. high pressure washing water control valve, 12. magnetic recycle control valve, 13. excess sludge discharge valve, 14. ferromagnetism mud magnetic separator, 15. magnetic return line, 16. excess sludge discharge pipe, 17. driving motor, 18. weak magnetic rotation magnetic bucket transmission shaft, 19. weak magnetic solid-liquid separator outlet water control valve, 20. the activated sludge discharged control valve of remanence, 21. mud-collecting slot, 22. cleaning shoe, 23. weak magnetic rotation magnetic bucket inner support frame, 24. ferromagnetism mud magnetic separator shell, 25. insulation gas cloud, 26. magnetic conduction iron-clad layer, 27. insulation oil reservoir, 28. stainless steel base, 29. magnetic, the mud separate chamber, 30. iron core, 31. wire coil, 32. mud-collecting slot sinks the mud bleed valve, 33. heavy mud delivery pipe, 34. air-diffuser.
Embodiment
Can find out that in Fig. 1 to Fig. 5 magnetic loads the apparatus system of magnetic mud internal reflux biologic process for treating sewage, mainly comprise that magnetic active sludge biological reaction tank, weak magnetic solid-liquid separator and ferromagnetism mud magnetic separator form.Magnetic active sludge biological reaction tank 3 mainly is comprised of the activated sludge discharged control valve 20 of biological reaction tank pond body, water inlet and water distribution system 1, air intake duct 2, air-diffuser 34 and remanence.Weak magnetic solid-liquid separator is installed in magnetic active sludge biological reaction tank 3 internal upper part positions, pond, and this separator is comprised of semi-cylindrical shaped tank 4 and weak magnetic rotation magnetic bucket 5; Semi-cylindrical shaped tank 4 bottoms are provided with mud-collecting slot 21, mud-collecting slot 21 sides are connected with the heavy mud bleed valve 32 of mud-collecting slot, heavy mud delivery pipe 33, semi-cylindrical shaped tank 4 top one sides are equipped with cleaning shoe 22, are connected with weak magnetic solid-liquid separator rising pipe 6 on the semi-cylindrical shaped tank 4 of cleaning shoe 22 1 sides; Weak magnetic rotation magnetic bucket 5 by surperficial round shape rubbernet and round shape a little less than magnetic rotation magnetic bucket inner support frame 23, weak magnetic rotation magnetic bucket transmission shaft 18 and driving motor 17 form.Ferromagnetism mud magnetic separator 14 is comprised of ferromagnetism mud magnetic separator shell 24, insulation gas cloud 25, magnetic conduction iron-clad layer 26, insulation oil reservoir 27, stainless steel base 28, iron core 30, wire coil 31 etc.
In Fig. 1 and Fig. 2, magnetic active sludge biological reaction tank 3 will first through the cultivation of active sludge, tame process before dropping into commencement of commercial operation and magnetic loads culturing process, reaction tank starts forebay domestic demand inoculation ordinary activated sludge, make the starting point concentration of magnetic active sludge biological reaction tank 3 interior ordinary activated sludge be not less than 3500mg/l, then take for the first time manually to dispense and add magnetic (Fe
3o
4), dosage is 4g/L, evenly enter magnetic active sludge biological reaction tank 3 according to 50% of design discharge by water inlet and water distribution system 1 through pretreated organic sewage, by air intake duct 2 and be evenly arranged in air-diffuser 34 on pond body bottom and water inlet and water distribution system 1 blast air in the sewage in magnetic active sludge biological reaction tank 3, carry out uniform aeration the required oxygen of bacteria metabolism to be provided and to provide current to stir power, make ordinary activated sludge and magnetic all in suspended state, said process carries out middle magnetic to be become the wadding karyomorphism by active sludge parcel gradually and becomes the magnetic active sludge, the magnetic active sludge of suspended state utilizes the organic pollutant in its huge surface-area absorption sewage, and under aerobic environment, organic substance decomposing become to carbonic acid gas and water and degraded, carrying out along with degradation process, it is large that the particle diameter of magnetic active sludge constantly becomes, when the interior magnetic activated sludge concentration of magnetic active sludge biological reaction tank 3 constantly increases to the 6000mg/l left and right and the degradation effect of organic pollutant is stablized, cultivate the domestication end of processing, after this can access at full capacity organic sewage and carry out normal processing, during normal operation is processed at full capacity, one side end face of semi-cylindrical shaped tank 4 is equal with liquid level, so that the mud mixture after the 3 interior degradeds of magnetic active sludge biological reaction tank can enter the clearance space between semi-cylindrical shaped tank 4 and weak magnetic rotation magnetic bucket 5, the magnetic active sludge can very rapidly be adsorbed by the rubbernet on weak magnetic rotation magnetic bucket 5 surfaces, simultaneously due to magneticstrength a little less than, magnetic can't break away from active sludge.At Fig. 3, in Fig. 4, weak magnetic rotation magnetic bucket 5 by surperficial round shape rubbernet and round shape a little less than magnetic rotation magnetic bucket inner support frame 23, weak magnetic rotation magnetic bucket transmission shaft 18, driving motor 17 forms, rotation along with the magnetic bucket under 18 effects of driving motor 17 and weak magnetic rotation magnetic bucket transmission shaft (in figure for clockwise rotating), the magnetic active sludge be adsorbed produces with the magnetic bucket cleaning shoe 22 that the water surface is installed in semi-cylindrical shaped tank 4 another sides and strikes off and fall after rise to magnetic active sludge biological reaction tank 3, clear water after solid-liquid separation is drawn and is entered clean water basin 7 from the weak magnetic solid-liquid separator rising pipe 6 that is arranged on cleaning shoe 22 bottom semi-cylindrical shaped tanks 4 settings, discharging the amount of water can control by weak magnetic solid-liquid separator outlet water control valve 19, in this clear water, organism and concentration of suspension can reach processing requirements, clean water basin 7 are interior except storing for rinsing a certain amount of clear water, unnecessary clear water is by clear water delivery pipe 8 discharge systems, considering in the mud mixture entered in semi-cylindrical shaped tank 4 that the magnetic active sludge may have under special conditions is not adsorbed by the magnetic bucket and free setting is deposited on semi-cylindrical shaped tank 4 bottoms on a small quantity, so be provided with mud-collecting slot 21 at this bottom of gullet, regularly the magnetic active sludge of deposition controlled by the heavy mud bleed valve 32 of mud-collecting slot and passed through to sink mud delivery pipe 33 discharge systems.
Along with constantly carrying out of magnetic active sludge (micropopulation) degradation of organic substances reaction, microorganism also constantly breeds, show as the continuous increase of magnetic activated sludge concentration, when the interior magnetic activated sludge concentration of magnetic active sludge biological reaction tank 3 surpasses the definite higher limit of design, just necessary exclusive segment magnetic active sludge is to guarantee the optimum operation of reaction tank, when the needs spoil disposal, open the activated sludge discharged control valve 20 of remanence and excess sludge discharge valve 13, the mixed solution of magnetic active sludge and water directly enters ferromagnetism mud magnetic separator 14, this process mesohigh wash-water pump 9, high pressure washing water control valve 11, magnetic recycle control valve 12 is in closing condition.
After the magnetic active sludge enters ferromagnetism mud magnetic separator 14 with a constant static-pressure, in the magnetic of this separator, mud separate chamber 29, magnetic thoroughly separates with active sludge under strong magnetic field action, magnetic is captured, and residual active sludge is discharged and entered follow-up sludge treating system by excess sludge discharge pipe 16.When the interior magnetic of ferromagnetism mud magnetic separator 14 trapping time or resistance reach capping, close the activated sludge discharged control valve 20 of remanence and excess sludge discharge valve 13, open magnetic recycle control valve 12 simultaneously, high pressure washing water control valve 11, and startup high pressure washing water pump 9, the clear water extracted from clean water basin 7 by high pressure washing water pump 9 directly enters the magnetic in ferromagnetism mud magnetic separator 14 by high pressure washing pipeline 10 and high pressure washing water control valve 11 after pressurization, magnetic is gone out by mud separate chamber 29, magnetic is by magnetic recycle control valve 12, magnetic return line 15 evenly returns to the interior continuation of magnetic active sludge biological reaction tank 3 and uses.
In Fig. 5 and Fig. 6, ferromagnetism mud magnetic separator 14 is comprised of ferromagnetism mud magnetic separator shell 24, insulation gas cloud 25, magnetic conduction iron-clad layer 26, insulation oil reservoir 27, stainless steel base 28, iron core 30, wire coil 31 etc., during the work of ferromagnetism mud magnetic separator 14, the wire coil 31 be wrapped on iron core 30 is switched on the power generation foreign field, at magnetic, the stainless steel base 28 that the surface-area of making of the magnetic stainless steel silk in mud separate chamber 29 is huge is got involved magnetic field, chaotic Distribution of Magnetic Field, form very high field gradient at regional area, now open the activated sludge discharged control valve 20 of remanence and excess sludge discharge valve 13, the magnetic active sludge enters ferromagnetism mud magnetic separator 14 with certain pressure, magnetic is trapped in the surface of stainless steel base 28, residual active sludge is discharged and is entered follow-up sludge treating system by excess sludge discharge pipe 16 through stainless steel base 28, when stainless steel base 28 catches time of magnetics or resistance increment and reaches capping, now need to close the activated sludge discharged control valve 20 of remanence and excess sludge discharge valve 13, cut off the electricity supply to eliminate foreign field simultaneously, open magnetic recycle control valve 12, high pressure washing water control valve 11 and start high pressure washing water pump 9, with high pressure water, the magnetic of trapping on stainless steel base 28 rinsed and evenly return to the interior continuation of magnetic active sludge biological reaction tank 3 by magnetic return line 15 and use.
Claims (5)
1. a magnetic loads magnetic mud internal reflux biologic process for treating sewage, and its processing step is as follows:
(1), cultivate the domestication process: magnetic active sludge biological reaction tank adopts complete hybrid active sludge aeration tank, inoculates ordinary activated sludge before operation and add a certain amount of magnetic in pond, is in operation and cultivates into gradually the magnetic active sludge; Sewage, by water inlet pipe and the water distribution system that is located at the bottom, aeration tank, evenly enters the active sludge aeration tank; Above the water distribution system of bottom, active sludge aeration tank, evenly lay airline and air-diffuser, adopt the gas blower air supply and through air-diffuser to delivering oxygen in water, required oxygen when meeting the microbiological deterioration pollutent, make ordinary activated sludge and magnetic all in suspended state, said process carries out middle magnetic to be become the wadding karyomorphism by active sludge parcel gradually and becomes the magnetic active sludge, and the magnetic active sludge of suspended state utilizes the organic pollutant in its huge surface-area absorption sewage;
(2), normally operation at full capacity: approach the liquid level place on magnetic active sludge biological reaction tank top some weak magnetic solid-liquid separators are set, weak magnetic solid-liquid separator is comprised of weak magnetic rotation magnetic bucket and semi-cylindrical shaped tank, during work, weak magnetic rotation magnetic bucket its half is submerged in water all the time, second half exposes liquid level, and the rubbernet that it is suitable that the magnetic bucket is selected magneticstrength is made; Tank one side is provided with cleaning shoe along its length, and cleaning shoe is close to weak magnetic rotation magnetic bucket surface, in order to scrape the magnetic active sludge that is attached to magnetic bucket surface; During normal operation is processed at full capacity, one side end face of semi-cylindrical shaped tank is equal with liquid level, so that in magnetic active sludge biological reaction tank, the mud mixture after degraded can enter the clearance space between semi-cylindrical shaped tank and weak magnetic rotation magnetic bucket, the magnetic active sludge can very rapidly be adsorbed by the rubbernet on magnetic bucket surface, simultaneously due to magneticstrength a little less than, magnetic can't separate with active sludge; Rotation along with the magnetic bucket, the magnetic active sludge be adsorbed produces the water surface and is struck off and fall after rise to reaction tank by the cleaning shoe of side, the clear water pipe that clear water after solid-liquid separation arranges from cleaning shoe bottom tank is drawn and is entered clean water basin, and the water outlet concentration of suspension reaches processing requirements;
(3), get rid of mud: in magnetic active sludge biological reaction tank, the magnetic activated sludge concentration surpasses while designing definite higher limit, needs exclusive segment magnetic active sludge to guarantee the optimum operation of reaction tank; When getting rid of mud, the magnetic active sludge is entered to ferromagnetism mud magnetic separator with a constant static-pressure, magnetic thoroughly separates with active sludge under strong magnetic field action, and magnetic is captured, and residual active sludge is discharged and entered follow-up sludge treating system by the excess sludge discharge pipe; The magnetic trapped in separator is regularly gone out with high pressure water, and evenly is back to biological reaction tank to supplement the magnetic amount by the magnetic return line.
2. magnetic according to claim 1 loads magnetic mud internal reflux biologic process for treating sewage, it is characterized in that in step poly-(3), during the work of ferromagnetism mud magnetic separator, the wire coil be wrapped on iron core is switched on the power generation foreign field, at magnetic, the stainless steel base that the surface-area of making of the magnetic stainless steel silk in the mud separate chamber is huge is got involved magnetic field, chaotic Distribution of Magnetic Field, form very high field gradient at regional area, now open the activated sludge discharged control valve of remanence and excess sludge discharge valve, the magnetic active sludge enters ferromagnetism mud magnetic separator with certain pressure, magnetic is trapped in the surface of stainless steel base, residual active sludge is discharged and is entered follow-up sludge treating system by the excess sludge discharge pipe through stainless steel base, when stainless steel base catches time of magnetic or resistance increment and reaches capping, now need to close the activated sludge discharged control valve of remanence and excess sludge discharge valve, cut off the electricity supply to eliminate foreign field simultaneously, open magnetic recycle control valve, high pressure washing water control valve and start the high pressure washing water pump, with high pressure water, the magnetic trapped on stainless steel base being rinsed and evenly return in magnetic active sludge biological reaction tank and continue to use by the magnetic return line.
3. a magnetic according to claim 1 loads the apparatus system of magnetic mud internal reflux biologic process for treating sewage, described apparatus system comprises magnetic active sludge biological reaction tank, weak magnetic solid-liquid separator and ferromagnetism mud magnetic separator, it is characterized in that magnetic active sludge biological reaction tank mainly is comprised of biological reaction tank pond body, water inlet and the activated sludge discharged control valve of water distribution system, air intake duct, air-diffuser and remanence; Some weak magnetic solid-liquid separators are installed in internal upper part position, magnetic active sludge biological reaction tank pond, this separator is comprised of semi-cylindrical shaped tank and weak magnetic rotation magnetic bucket, semi-cylindrical shaped tank bottom is provided with mud-collecting slot, the mud-collecting slot side is connected with the heavy mud bleed valve of mud-collecting slot, heavy mud delivery pipe, semi-cylindrical shaped sink top one side is equipped with cleaning shoe, is connected with weak magnetic solid-liquid separator rising pipe on the semi-cylindrical shaped tank of cleaning shoe one side; Weak magnetic rotation magnetic bucket by surperficial round shape rubbernet, round shape a little less than magnetic rotation magnetic bucket inner support frame, weak magnetic rotation magnetic bucket transmission shaft and driving motor form; Ferromagnetism mud magnetic separator mainly is comprised of ferromagnetism mud magnetic separator shell, insulation gas cloud, magnetic conduction iron-clad layer, insulation oil reservoir, stainless steel base, iron core, wire coil.
4. magnetic according to claim 2 loads the apparatus system of magnetic mud internal reflux biologic process for treating sewage, it is characterized in that being provided with mud-collecting slot and shore pipe at the bottom of gullet of weak magnetic solid-liquid separator.
5. magnetic according to claim 2 loads the apparatus system of magnetic mud internal reflux biologic process for treating sewage, it is characterized in that weak magnetic solid-liquid separator magnitude setting can according to process the water yield the number and process after the size of the concentration of suspension that requires in water outlet choose, and be evenly arranged at reaction tank pond face.
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| CN105948418A (en) * | 2016-07-18 | 2016-09-21 | 汪浩 | Sewage purifying technology and use method thereof |
| CN108046510A (en) * | 2018-01-10 | 2018-05-18 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal device and its technique based on zeolite powder adsorbent |
| CN108726669A (en) * | 2018-04-20 | 2018-11-02 | 温州大学苍南研究院 | A kind of method that magnetic activated sludge process synchronizes a variety of non-steroidal estrogenics of removal |
| CN112010529A (en) * | 2020-09-16 | 2020-12-01 | 安徽华骐环保科技股份有限公司 | Sludge low-temperature dryer and use method thereof |
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| JP2005137991A (en) * | 2003-11-05 | 2005-06-02 | Yasukura Sakai | Drainage treatment apparatus |
| CN101708931A (en) * | 2009-12-01 | 2010-05-19 | 北京市市政工程设计研究总院 | Magnetic co-sedimentation biological filtering tank process and device |
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