CN103043869A - Recycling sewage treatment equipment by utilizing automatic backflow reactor and sewage treatment method thereof - Google Patents
Recycling sewage treatment equipment by utilizing automatic backflow reactor and sewage treatment method thereof Download PDFInfo
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention relates to recycling sewage treatment equipment by utilizing an automatic backflow reactor and a sewage treatment method thereof. The equipment comprises a grid, an adjusting tank, a pre-reaction tank, the automatic backflow reactor, a rapid filter tank, sterilizing equipment, a sludge thickener, sludge advanced treatment equipment, a filter press and a sludge fertilizer making furnace, wherein the pre-reaction tank can be a hydrolytic acidification reaction tank or an anaerobic reaction tank; the automatic backflow reactor comprises an aeration zone, a two-inclined tube settling zone and an automatic backflow zone; the sterilizing equipment comprises a chlorine dioxide generator and an ultraviolet sterilizing device; the sludge fertilizer making furnace comprises a bacterium culturing device, a vaccinator and a reaction furnace; and the devices are communicated through pipelines. According to the sewage treatment process disclosed by the invention, a secondary sedimentation tank and a sludge return system in a traditional activated sludge process are saved; the sludge-breaking fertilizer making process is utilized to replace the outward transport process of sludge cakes; the rapid filter tank is added in the advanced treatment process; the collaborative sterilization of ultraviolet and chlorine is adopted; and therefore, the sewage treatment equipment has the advantages of good effluent quality, low energy consumption, small floor space, high sludge concentration, high shock resistance and the like.
Description
Technical field
What the present invention relates to is the environment protection sewage processing technology field, especially relates to a kind of resource utilization sewage disposal device and sewage water treatment method thereof that utilizes the automatic back flow reactor.
Background technology
At present, the development of industrial and agricultural production and the raising of people's living standard produce a large amount of productive life waste water, not only polluted our living environment, also cause simultaneously the significant wastage of resource, in the past few decades, people have accumulated a large amount of practical experiences aspect sewage disposal, also develop some high-efficiency sewage treatment processs.Activated sludge process is a kind of secondary biochemical sewage water treatment method that present countries in the world are most widely used, its treatment process is: sewage enters the aeration tank first after grid, equalizing tank, settling pit, preliminary sedimentation tank pre-treatment, the aeration tank water outlet enters carries out mud-water separation in the second pond, the supernatant water outlet is discharging after chlorine or uv sterilisation etc. are processed, the excess sludge that produces in its sewage treatment process is transported outward disposal after the dehydration usually, its treatment scheme, as shown in Figure 1.Traditional activated sludge process utilize second pond carry out mud and moisture from, and by mechanical means such as reflux pump, reflux lines most of mud is passed back into the aeration tank again, the second pond water outlet is discharging after chlorine or uv sterilisation etc. are processed, and the excess sludge usually rear outward transport of dehydration is disposed.But its effluent quality does not often reach higher emission standard if Sewage Plant does not add advanced treatment; Machinery refluxes and can destroy mud flco structure and activity, has reduced processing efficiency, has prolonged the sewage disposal cycle, and has increased facility investment.Usually sewage effluents is by uv sterilisation killing bacteria at short notice, and chlorine disinfectant then can bring certain by product.And at present domestic dehydration equipment can only be with sludge dewatering to water ratio about 80%, and mud inner cell water still exists.If outward transport landfill after the excess sludge dehydration not only will spend the outward transport expense of great number, and landfill can take certain soil, is not a kind of cost-effective treatment process, do not meet current environmental requirement.
Through long-time research, the inventor has proposed a kind of resource utilization sewage apparatus and sewage water treatment method thereof that utilizes the automatic back flow reactor.This technique is combined to the aeration tank in the traditional activated sludge process and second pond in the reactor, and by adopt automatic back flow that the automatic back flow technology realizes mud and mud preferably, reduced the sludge reflux facility; Simultaneously that the excess sludge process is concentrated, ultrasonication through the pressure filter dehydration, enters the Reaktionsofen composting more at last, and so not only excess sludge is innoxious, resource utilization also produces certain economic benefit; The water outlet of automatic back flow reactor has further been removed phosphorus, suspended substance etc., so that effluent quality is greatly improved under the effect of rapid filter; In addition, the sterilization of the synergy of ultraviolet and chlorine had both guaranteed sterilization effect, had reduced again the probability that by product produces; Simultaneously, utilize the combined utilization of pre-reactor and automatic back flow reactor, can process difficult degradation and high concentrated organic wastewater.Prove after deliberation, this technology investment is few, energy consumption is low, floor space is little, working cost is low, effluent quality is good, sludge concentration is high, shock-resistance is strong, applicable to advantages such as difficult degradation and high concentrated organic wastewaters, and can utilize the excess sludge composting, produce economic benefit.
Summary of the invention
The purpose of this invention is to provide a kind of resource utilization sewage disposal device and sewage water treatment method thereof that utilizes the automatic back flow reactor, improved wastewater treatment efficiency, reduced investment, working cost, and with the excess sludge recycling.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor comprises grid, equalizing tank, and the pre-reaction pond, the automatic back flow reactor, sludge thickener, the sludge deep treatment facility, pressure filter, the Sludge Composting stove, rapid filter, sterilization equipment is characterized in that:
Described folding automatic back flow reactor comprises the aeration zone, two tube settling districts and automatic back flow district;
Described sterilization equipment comprises chlorine dioxide generator, ultra violet sterilizer;
Described Sludge Composting stove comprises cultivation device, inoculator, Reaktionsofen;
Described grid links to each other with equalizing tank by pipeline, equalizing tank is connected with the pre-reaction pond by pipeline, the pre-reaction pond links to each other with the automatic back flow reactor by pipeline, the automatic back flow reactor links to each other with the rapid filter that disappears, sludge thickener respectively by pipeline, sludge thickener links to each other with the sludge deep treatment facility by pipeline, the sludge deep treatment facility links to each other with pressure filter by pipeline, and pressure filter links to each other with the Sludge Composting stove by pipeline, and rapid filter links to each other with sterilization equipment by pipeline.
Described pre-reaction pond is the acidication reaction tank; Hard-degraded substance can be converted into and be easy to the organism that microorganism utilizes.
Described pre-reaction pond is anaerobic reation pool, and described anaerobic reation pool comprises the collecting methane pipe, sludge reflux pump, baffling type anaerobic reaction tank; The biogas of collecting through the collecting methane pipeline can be used for generating, torch burning or as boiler oil.
The top of described aeration zone is cylindrical body, and the bottom of aeration zone is prismatoid, and the cylindrical body top is provided with the water inlet pipe of connecting with the pre-reaction pond;
Two tube settling districts are and are symmetrical set in the cylindrical body both sides, and each tube settling district is provided with water leg, and water leg is provided with rising pipe, and water leg is provided with overfalling weir;
Between every skew back pipe settling region and the aeration zone automatic back flow district is set respectively, each automatic back flow district is comprised of the first flap, the second flap, the 3rd flap, the second flap is arranged between the first flap and the 3rd flap, the second flap top is provided with the sludge reflux mouth, the second flap bottom is provided with extension board, the inclined-plane of extension board and prismatoid consists of the seam that refluxes, the seam that refluxes is communicated with the tube settling district, between the second flap and the first flap and the 3rd flap respectively formation be communicated with two cracks of tube settling district and aeration zone;
The prismatoid two bottom sides is provided with mud discharging mouth, the prismatoid bottom also is provided with aerator, the corner at two ends, prismatoid bottom is respectively equipped with two and is the plug-flow pump that 45 degree directions are installed, and totally 4 are the diagonal installation, and the bevel angle of described trapezoidal tilter is 45 °-60 °.
As further improvement, the sludge reflux of automatic back flow reactor utilizes crack to reflux and the automatic back flow mode of conducting oneself with dignity and refluxing, having replaced the machinery in the traditional technology refluxes, avoid destroying flocculent structure and the biological activity of active sludge, and active sludge successively in time refluxes, shorten the treatment time, improved processing efficiency and decontamination effect improving.And automatic back flow technology or the process that active sludge is selected, it is so that active good mud is in the aeration tank all the time reacts, active relatively poor mud then can be back to by trapezoidal inclined plane under the self gravitation effect near the mud relief outlet, and regularly discharge by the mud relief outlet, the part active sludge can also enter again the aeration tank under the effect of plug-flow pump fully mixes.Sewage enters the settling region by the seam that refluxes, and then enters water leg and water outlet through overflow weir, and the settling region is provided with the clearance that the inclined tube filler can improve suspended substance.This automatic back flow reactor is owing to adopt the mode of automatic back flow in addition, and the surplus sludge volume of its generation is few, can the reduce mud disposal costs.
Described tube settling district is comprised of a plurality of tilting inclined tube bodies; Sedimentation effect is better, and water outlet SS is lower.
Described aerator is rotary mixing aerator; Improve the utilization ratio of oxygen, promoted the systemic circulation of current, increased the backflow effect.
Described sludge deep treatment facility is the ultrasonic sludge treatment facility; Under the effect of hyperacoustic mechanical effect, cavatition and heat effect, can microbial cell wall in the mud is broken, in kill microorganisms, can discharge intracellular moisture, organism etc., can improve the mud utilization ratio of composting Reaktionsofen, can also play the sterilization and disinfection effect to mud, and be conducive to the pressure filter dehydration, greatly reduce the water ratio of dehydrated sludge.
Described Sludge Composting stove comprises the cultivation device, is used for inoculator and the Reaktionsofen of mud and bacterial classification inoculation; Preferably, the Sludge Composting stove utilize the high-efficiency inoculating device with the outer cultivation of sludge seeding with composting.
Preferably, rapid filter is a kind of fast filtering pond of adding multiple filtrate, in order to further removal phosphorus, suspended matter etc.
Preferably, sterilization equipment is that uv steriliser and chlorine dioxide generator are united use, and sewage carries out first disinfection by ultraviolet light in sterilization pool, and then carries out chlorine disinfectant, has so not only improved sterilization effect, has also reduced the probability that by product produces.
The method that a kind of resource utilization sewage disposal device that utilizes above-mentioned automatic back flow reactor carries out sewage disposal is characterized in that, comprises following treating processes;
1.1 sewage is introduced into grid through pipeline, removes the larger suspended matter of particle diameter.
1.2 the grid water outlet enters equalizing tank again, carries out the homogenizing of water quality and quantity and certain precipitation process.
1.3 the equalizing tank water outlet enters the pre-reaction pond, the acidification that is hydrolyzed or anaerobic reaction are with biodegradability and the removal partial organic substances that improves sewage.
1.4 after the processing of pretreatment pool, sewage enters the automatic back flow reactor and processes, and removes most of organism, ammonia nitrogen, total phosphorus etc.
1.5 the water outlet of automatic back flow reactor enters rapid filter and further removes phosphorus, suspended matter etc.
Carry out ultraviolet and the sterilization of chlorine synergy 1.6 the rapid filter water outlet enters sterilization equipment, carry out again chlorine disinfectant through uv sterilisation first, the water outlet discharging after sterilization.
1.7 the excess sludge that the automatic back flow reactor produces enters sludge thickener, carries out gravity settling and concentrates.
1.8 mud carries out the ultrasonic wave advanced treatment by the sludge deep treatment facility after concentrated, and microbial cell wall in the mud is broken, killing bacteria and release cells moisture and organism etc.
1.9 entering pressure filter, the mud behind the ultrasonic disruption dewaters.
1.10 the mud after the dehydration enters Sludge Composting stove composting after crossing inoculation, can produce organic fertilizer through 4-7 days fermentation.
In present method, utilize the automatic back flow reaction tank to replace the aeration tank in the traditional activated sludge process, second pond, mechanical refluxing unit, not only reduce floor space and investment, and the mud of automatic back flow reaction tank can reach very high density, and shock-resistance is strong, go in the sewage disposal of different influent qualities.And the application of rapid filter can further improve effluent quality, meets the higher emissions standard.Adopt the synergy sterilization of ultraviolet and chlorine in the sterilization pool, both guaranteed sterilization effect, reduced again the probability that by product produces.In addition, dispose with the sludge dewatering outward transport that sludge deep is processed and the composting replacement is traditional, not only improved dewatering rate, and can utilize the excess sludge composting, produce economic benefit.
Principle of work is as follows: sewage enters equalizing tank after processing through grid, after the homogenizing of equalizing tank to water quality and quantity, again according to the different treatment requirement, enter the pre-reaction pond, the acidification that is hydrolyzed or anaerobic reaction are with biodegradability and the removal partial organic substances that improves sewage; The water outlet in pre-reaction pond enters the automatic back flow reactor again and processes, this automatic back flow reactor forms anaerobism and aerobic environment by flap is set in settling region and aeration zone, and carry out the mud automatic back flow by 3 flaps and crack, when guaranteeing sludge quantity, microorganism has carried out the nitration denitrification reaction, and its denitrification effect is fabulous.And automatic back flow technology or the process that active sludge is selected, it is so that active good mud is in the aeration tank all the time reacts, active relatively poor mud then can be back to by trapezoidal inclined plane under the self gravitation effect near the mud relief outlet, and regularly discharge by the mud relief outlet, the part active sludge can also enter again the aeration tank under the effect of plug-flow pump fully mixes and reacts, sewage enters the settling region by the seam that refluxes, then enter water leg and water outlet through overflow weir, the settling region is provided with the clearance that the inclined tube filler can improve suspended substance.The water outlet of automatic back flow reactor enters rapid filter and further removes phosphorus, suspended matter etc., the rapid filter water outlet enters sterilization pool and carries out ultraviolet and the sterilization of chlorine synergy, carry out again chlorine disinfectant through uv sterilisation first, the concurrent disinfection effect of the two has improved sterilization effect, and reduced the probability that by product produces, the water outlet discharging after sterilization.Carry out the ultrasonic wave advanced treatment after the excess sludge that the automatic back flow reactor produces is concentrated through sludge thickener, under the effect of hyperacoustic mechanical effect, cavatition and heat effect, can microbial cell wall in the mud is broken, in kill microorganisms, can discharge intracellular moisture, organism etc., be conducive to follow-up composting utilization, and play the sterilization and disinfection effect, be conducive in addition the pressure filter dehydration, greatly reduced the water ratio of dehydrated sludge.Mud after the pressure filter dehydration enters composting stove composting after crossing inoculation, 8-12 hour thermophilic fermentation of mud process and lasting stirring the in the composting stove, under the effect of fermented bacterium, just the fermentations such as the organic matter in the mud and N, P, K can be decomposed out, stack fermentation through 3-5 days secondary again and can produce organic fertilizer.Not only can save the sludge disposal expense to excess sludge in order to composting, can also make the recycling sludge utilization, bring economic benefit.
This sewage water treatment method is better than traditional activated sludge process effluent quality, floor space is little, working cost is low, and can realize the recycling sludge utilization.
The invention has the beneficial effects as follows: a kind of resource utilization sewage disposal device and sewage water treatment method thereof that utilizes the automatic back flow reactor of the present invention, sewage enters equalizing tank after processing through grid, after the homogenizing of equalizing tank to water quality and quantity, again according to the different treatment requirement, enter acidication reaction tank or anaerobic reation pool, the acidification that is hydrolyzed or anaerobic reaction are with biodegradability and the removal partial organic substances that improves sewage; The water outlet of acidication reaction tank and anaerobic reation pool enters the automatic back flow reactor again and processes, this automatic back flow reactor forms anaerobism and aerobic environment by flap is set in settling region and aeration zone, and carry out the mud automatic back flow by 3 flaps and crack, when guaranteeing sludge quantity, microorganism has carried out the nitration denitrification reaction, and its denitrification effect is fabulous.And automatic back flow technology or the process that active sludge is selected, it is so that active good mud is in the aeration tank all the time reacts, active relatively poor mud then can be back to by trapezoidal inclined plane under the self gravitation effect near the mud relief outlet, and regularly discharge by the mud relief outlet, the part active sludge can also enter again the aeration tank under the effect of plug-flow pump fully mixes and reacts, sewage enters the settling region by the seam that refluxes, then enter water leg and water outlet through overflow weir, the settling region is provided with the clearance that the inclined tube filler can improve suspended substance.The water outlet of flap reactor enters rapid filter and further removes phosphorus, suspended matter etc., the rapid filter water outlet enters sterilization pool and carries out ultraviolet and the sterilization of chlorine synergy, carry out again chlorine disinfectant through uv sterilisation first, the concurrent disinfection effect of the two has improved sterilization effect, and reduced the probability that by product produces, the water outlet discharging after sterilization.Carry out ultrasonication after the excess sludge that the automatic back flow reactor produces is concentrated through sludge thickener, under the effect of hyperacoustic mechanical effect, cavatition and heat effect, can microbial cell wall in the mud is broken, in kill microorganisms, can discharge intracellular moisture, organism etc., be conducive to follow-up composting utilization, and play the sterilization and disinfection effect, be conducive in addition the pressure filter dehydration, greatly reduced the water ratio of dehydrated sludge.Mud after the pressure filter dehydration enters composting stove composting after crossing inoculation, 8-12 hour thermophilic fermentation of mud process and lasting stirring the in the composting stove, under the effect of fermented bacterium, just the fermentations such as the organic matter in the mud and N, P, K can be decomposed out, stack fermentation through 3-5 days secondary again and can produce organic fertilizer.Not only can save the sludge disposal expense to excess sludge in order to composting, can also make the recycling sludge utilization, bring economic benefit.
Description of drawings
Fig. 1 is the treatment scheme of a kind of secondary biochemical sewage water treatment method in the prior art.
Fig. 2 is the structural representation of first embodiment of the invention.
Fig. 3 is the structural representation of second embodiment of the invention.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
The first embodiment: as shown in Figure 2, a kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor comprises grid 00, equalizing tank 10, the pre-reaction pond, automatic back flow reactor 40, rapid filter 90, sterilization equipment 100, sludge thickener 50, sludge deep treatment facility 60, pressure filter 70, Sludge Composting stove 80 is characterized in that:
Described automatic back flow reactor 40 comprises 41, two tube settling districts 42, aeration zone and automatic back flow district 43;
Described sterilization equipment 100 comprises chlorine dioxide generator 101, ultra violet sterilizer 102;
Described Sludge Composting stove 80 comprises cultivation device 81, inoculator 82, Reaktionsofen 83;
Described grid 00 links to each other with equalizing tank 10 by pipeline, equalizing tank 10 is connected with the pre-reaction pond by pipeline, the pre-reaction pond links to each other with automatic back flow reactor 40 by pipeline, automatic back flow reactor 40 links to each other with rapid filter 90, sludge thickener 50 respectively by pipeline, sludge thickener 50 links to each other with sludge deep treatment facility 60 by pipeline, sludge deep treatment facility 60 links to each other with pressure filter 70 by pipeline, and pressure filter 70 links to each other with Sludge Composting stove 80 by pipeline.Rapid filter 90 links to each other with sterilization equipment 100 by pipeline.
Described pre-reaction pond is the acidication reaction tank; Hard-degraded substance can be converted into and be easy to the organism that microorganism utilizes.
The top of described aeration zone 41 is cylindrical body 41-1, and the bottom of aeration zone 41 is prismatoid 41-2, and cylindrical body 41-1 top is provided with the water inlet pipe 41-3 that connects with the pre-reaction pond;
Two tube settling districts 42 are and are symmetrical set in cylindrical body 41-1 both sides, and each tube settling district 42 is provided with water leg 42-2, and water leg 42-2 is provided with rising pipe 42-3, and water leg 42-2 is provided with overflow weir 42-4;
Between every skew back pipe settling region 42 and the aeration zone 41 automatic back flow district 43 is set respectively, each automatic back flow district 43 is by the first flap 43-1, the second flap 43-2, the 3rd flap 43-3 forms, the second flap 43-2 is arranged between the first flap 43-1 and the 3rd flap 43-3, the second flap 43-2 top is provided with sludge reflux mouth 43-2a, the second flap 43-2 bottom is provided with extension board 43-2b, the inclined-plane 41-2a of extension board 43-2b and prismatoid 41-2 consists of the seam 41-4 that refluxes, the seam 44 that refluxes is communicated with between tube settling district 42, the second flap 43-2 and the first flap 43-1 and the 3rd flap 43-3 the two crack 43-4 that formation respectively is communicated with tube settling district 42 and aeration zone 41;
Prismatoid 41-2 two bottom sides is provided with mud discharging mouth 41-5, prismatoid 41-2 bottom is provided with aerator 41-6, the corner at two ends, prismatoid (41-2) bottom is respectively equipped with two plug-flow pumps (41-7) that are 45 degree directions, totally 4 are diagonal, and inclined-plane (41-2a) angle of prismatoid (41-2) is the 45-60 degree.
As further improvement, the sludge reflux of automatic back flow reactor utilizes crack to reflux and the mud automatic back flow mode of conducting oneself with dignity and refluxing, having replaced the machinery in the traditional technology refluxes, avoid destroying flocculent structure and the biological activity of active sludge, and active sludge successively in time refluxes, shorten the treatment time, improved processing efficiency and decontamination effect improving.And automatic back flow technology or the process that active sludge is selected, it is so that active good mud is in the aeration tank all the time reacts, active relatively poor mud then can be back to by trapezoidal inclined plane under the self gravitation effect near the mud relief outlet, and regularly discharge by the mud relief outlet, the part active sludge can also enter again the aeration tank under the effect of plug-flow pump fully mixes.Sewage enters the settling region by the seam that refluxes, and then enters water leg and water outlet through overflow weir, and the settling region is provided with the clearance that the inclined tube filler can improve suspended substance.The automatic back flow reactor is owing to adopt the mode of automatic back flow in addition, and the surplus sludge volume of its generation is few, can the reduce mud disposal costs.
Described tube settling district 42 is comprised of a plurality of tilting inclined tube body 42-5; Sedimentation effect is better, and water outlet SS is lower.
Described aerator 41-6 is for revolving mixed aerator; Improve the utilization ratio of oxygen, promoted the systemic circulation of current, increased the backflow effect.
Described sludge deep treatment facility 60 is the ultrasonic sludge treatment facility; Can say that microorganism wall is broken in the mud, not only can improve the utilization ratio of composting Reaktionsofen, can also play the sterilization and disinfection effect to mud.And be conducive to the pressure filter dehydration, greatly reduced the water ratio of dehydrated sludge.
Described Sludge Composting stove 80 comprises cultivation device 81, is used for inoculator 82 and the Reaktionsofen 83 of mud and bacterial classification inoculation; Preferably, Sludge Composting stove 80 utilize the high-efficiency inoculating device with the outer cultivation of sludge seeding with composting.
Preferably, sterilization equipment 100 is united use for ultra violet sterilizer 102 and chlorine dioxide generator 101, has improved sterilization effect, has reduced the probability that by product produces.
The effect of embodiment one is for the acidication effect of organic wastewater with difficult degradation thereby through the acidication reaction tank, can greatly improve the biodegradability of waste water, is transformed into easily biodegradable organics, is conducive to effective operation of follow-up automatic back flow reactor 40; Waste water enters in the pond through the middle part water inlet pipe in automatic back flow reactor 40, under the effect of revolving mixed aerator, mix fully with active sludge, enter in the tube settling district 42 at treater two ends through after the effect of microorganism, mud is under negative pressure and self gravitation effect that current form, by by the first flap 43-1, the second flap 43-2, two crack 43-4 between the 3rd flap 43-3 and the seam 41-4 auto back that refluxes flow into aeration zone 41, excess sludge is then by the mud discharging mouth 41-5 discharge that is arranged at the corner that forms with the inclined-plane at the bottom of the pond, clear water after the precipitation process enters rapid filter 90 through the overflow weir water outlet, enter sterilization equipment 100 after processing after filtration, waste water discharges behind the concurrent disinfection of ultra violet sterilizer 102 finally by the chlorine dioxide generator 101 of sterilization equipment 100; The excess sludge that automatic back flow reactor 40 is discharged enters sludge deep treatment facility 60 after concentrating through sludge thickener 50, in sludge deep treatment facility 60 under hyperacoustic effect, microorganism broken wall in the mud, then under pressure filter 70 effects, dewater, last excess sludge enters Sludge Composting stove 80 compostings, produce fertilizer, bring economic benefit when saving the sludge disposal expense.
The second embodiment: as shown in Figure 3, its structure is similar to embodiment one, and difference is, described pre-reaction pond is anaerobic reation pool (30), described anaerobic reation pool (30) comprises collecting methane pipe (31), sludge reflux pump (32), baffling type anaerobic reaction tank (33).
Anaerobic reation pool 30 is replaced by in the pre-reaction pond in this processing equipment of the second embodiment; Anaerobic reation pool 30 is the baffling type anaerobic reaction tank, is provided with sludge reflux pump 32, and is provided with collecting methane pipe 31, and biogas can be used for generating, torch burning or as boiler oil; Through after the grid, enter anaerobic reation pool for high concentrated organic wastewater, can remove partial organic substances, be conducive to organic matter removal in follow-up automatic back flow reactor 40 operations and the waste water, greatly improved organic matter removal rate in the waste water.
The method that a kind of resource utilization sewage disposal device that utilizes above-mentioned automatic back flow reactor carries out sewage disposal is characterized in that, comprises following treating processes;
1.1 sewage is introduced into grid 00 through pipeline, removes the larger suspended matter of particle diameter.
1.2 grid 00 water outlet enters equalizing tank 10 again, carries out the homogenizing of water quality and quantity and certain precipitation process.
1.3 equalizing tank 10 water outlets enter the pre-reaction pond, the acidification that is hydrolyzed or anaerobic reaction are with biodegradability and the removal partial organic substances that improves sewage.
1.4 after the processing of pretreatment pool, sewage enters automatic back flow reactor 40 and processes, and removes most of organism, ammonia nitrogen, total phosphorus etc.
1.5 the water outlet of automatic back flow reactor 40 enters rapid filter 90 and further removes phosphorus, suspended matter etc.
Carry out ultraviolet and the sterilization of chlorine synergy 1.6 rapid filter 90 water outlets enter sterilization equipment 100, carry out again chlorine disinfectant through uv sterilisation first, the water outlet discharging after sterilization.
1.7 the excess sludge that the automatic back flow reactor produces enters sludge thickener 50, carries out gravity settling and concentrates.
1.8 mud carries out the ultrasonic wave advanced treatment by sludge deep treatment facility 60 after concentrated, and microbial cell wall in the mud is broken, killing bacteria and release cells moisture and organism etc.
1.9 entering pressure filter 70, the mud behind the ultrasonic disruption dewaters.
1.10 the mud after the dehydration enters Sludge Composting stove 80 compostings after crossing inoculation, can produce organic fertilizer through 4-7 days fermentation.
In present method, utilize the automatic back flow reaction tank to replace the aeration tank in the traditional activated sludge process, second pond, mechanical refluxing unit, not only reduce floor space and investment, and the mud of automatic back flow reaction tank can reach very high density, and shock-resistance is strong, go in the sewage disposal of different influent qualities.And the application of rapid filter can further improve effluent quality, meets the higher emissions standard.Adopt the synergy sterilization of ultraviolet and chlorine in the sterilization pool, both guaranteed sterilization effect, reduced again the probability that by product produces.In addition, dispose with the sludge dewatering outward transport that sludge deep is processed and the composting replacement is traditional, not only improved dewatering rate, and can utilize the excess sludge composting, produce economic benefit.
Principle of work is as follows: sewage enters equalizing tank 10 after processing through grid, after the homogenizing of 10 pairs of water quality and quantities of equalizing tank, again according to the different treatment requirement, enter the pre-reaction pond, the acidification that is hydrolyzed or anaerobic reaction are with biodegradability and the removal partial organic substances that improves sewage; The water outlet in pre-reaction pond enters the automatic back flow reactor again and processes, this automatic back flow reactor forms anaerobism and aerobic environment by flap is set in tube settling district 42 and aeration zone 41, and carry out the mud automatic back flow by 3 flaps and crack, when guaranteeing sludge quantity, microorganism has carried out the nitration denitrification reaction, and its denitrification effect is fabulous.And automatic back flow technology or the process that active sludge is selected, it is so that active good mud is in the aeration tank all the time reacts, active relatively poor mud then can be back to by trapezoidal inclined plane under the self gravitation effect near the mud relief outlet, and regularly discharge by the mud relief outlet, the part active sludge can also enter again the aeration tank under the effect of plug-flow pump fully mixes and reacts, sewage enters the settling region by the seam that refluxes, then enter water leg and water outlet through overflow weir, the settling region is provided with the clearance that the inclined tube filler can improve suspended substance.The water outlet of automatic back flow reactor enters rapid filter and further removes phosphorus, suspended matter etc., the rapid filter water outlet enters sterilization pool and carries out ultraviolet and the sterilization of chlorine synergy, carry out again chlorine disinfectant through uv sterilisation first, the concurrent disinfection effect of the two has improved sterilization effect, and reduced the probability that by product produces, the water outlet discharging after sterilization.Carry out the ultrasonic wave advanced treatment after the excess sludge that the automatic back flow reactor produces is concentrated through sludge thickener, under the effect of hyperacoustic mechanical effect, cavatition and heat effect, can microbial cell wall in the mud is broken, in kill microorganisms, can discharge intracellular moisture, organism etc., be conducive to follow-up composting utilization, and play the sterilization and disinfection effect, be conducive in addition the pressure filter dehydration, greatly reduced the water ratio of dehydrated sludge.Mud after the pressure filter dehydration enters composting stove composting after crossing inoculation, 8-12 hour thermophilic fermentation of mud process and lasting stirring the in the composting stove, under the effect of fermented bacterium, just the fermentations such as the organic matter in the mud and N, P, K can be decomposed out, stack fermentation through 3-5 days secondary again and can produce organic fertilizer.Not only can save the sludge disposal expense to excess sludge in order to composting, can also make the recycling sludge utilization, bring economic benefit.
This sewage water treatment method is better than traditional activated sludge process effluent quality, floor space is little, working cost is low, and can realize the recycling sludge utilization.
Sewage treatment process of the present invention and traditional activated sludge process economy and efficient are compared as follows:
By the 1000t/d sanitary sewage,
As can be seen from the above table: treatment process of the present invention than the traditional technology less investment, floor space is little, running cost is lacked, effluent quality is good.
The above only is preferred implementation of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can do the improvement of some suitable practical situation to the technical scheme of invention.Therefore, protection scope of the present invention is not limited to this, and those of skill in the art are any to be included within protection domain of the present invention based on non-material change on the technical solution of the present invention.
Claims (10)
1. resource utilization sewage disposal device that utilizes the automatic back flow reactor, comprise grid (00), equalizing tank (10), pre-reaction pond, automatic back flow reactor (40), sludge thickener (50), sludge deep treatment facility (60), pressure filter (70), Sludge Composting stove (80), rapid filter (90), sterilization equipment (100) is characterized in that:
Described automatic back flow reactor (40) comprises aeration zone (41), two tube settling districts (42) and automatic back flow district (43);
Described sterilization equipment (100) comprises chlorine dioxide generator (101), ultra violet sterilizer (102);
Described Sludge Composting stove (80) comprises cultivation device (81), inoculator (82), Reaktionsofen (83);
Described grid (00) links to each other with equalizing tank (10) by pipeline, equalizing tank (10) is connected with the pre-reaction pond by pipeline, the pre-reaction pond links to each other with automatic back flow reactor (40) by pipeline, automatic back flow reactor (40) by pipeline respectively with the rapid filter that disappears (90), sludge thickener (50) links to each other, sludge thickener (50) links to each other with sludge deep treatment facility (60) by pipeline, sludge deep treatment facility (60) links to each other with pressure filter (70) by pipeline, pressure filter (70) links to each other with Sludge Composting stove (80) by pipeline, and rapid filter (90) links to each other with sterilization equipment (100) by pipeline.
2. according to claims 1 described a kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor, it is characterized in that: described pre-reaction pond is acidication reaction tank (20).
3. according to claims 1 described a kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor, it is characterized in that: described pre-reaction pond is anaerobic reation pool (30), described anaerobic reation pool (30) comprises collecting methane pipe (31), sludge reflux pump (32), baffling type anaerobic reaction tank (33).
4. according to claims 1 described a kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor, it is characterized in that:
The top of described aeration zone (41) is cylindrical body (41-1), and the bottom of aeration zone (41) is prismatoid (41-2), and cylindrical body (41-1) top is provided with the water inlet pipe (41-3) of connecting with the pre-reaction pond;
Two tube settling districts (42) are and are symmetrical set in cylindrical body (41-1) both sides, each tube settling district (42) is provided with water leg (42-2), water leg (42-2) is provided with rising pipe (42-3), and water leg (42-2) is provided with overfalling weir (42-4);
Between every skew back pipe settling region (42) and aeration zone (41) automatic back flow district (43) is set respectively, each automatic back flow district (43) is by the first flap (43-1), the second flap (43-2), the 3rd flap (43-3) forms, the second flap (43-2) is arranged between the first flap (43-1) and the 3rd flap (43-3), the second flap (43-2) top is provided with sludge reflux mouth (43-2a), the second flap (43-2) bottom is provided with extension board (43-2b), extension board (43-2b) consists of the seam (41-4) that refluxes with the inclined-plane (41-2a) of prismatoid (41-2), the seam (41-4) that refluxes is communicated with tube settling district (42), between the second flap (43-2) and the first flap (43-1) and the 3rd flap (43-3) respectively formation be communicated with two cracks (43-4) of tube settling district (42) and aeration zone (41);
Prismatoid (41-2) two bottom sides is provided with mud discharging mouth (41-5), and prismatoid (41-2) bottom also is provided with aerator (41-6), and the corner at two ends, prismatoid (41-2) bottom is respectively equipped with two plug-flow pumps (41-7).
5. according to claims 4 described a kind of resource utilization sewage disposal devices that utilize the automatic back flow reactor, it is characterized in that: described tube settling district (42) is comprised of a plurality of tilting inclined tube bodies (42-5).
6. according to claims 4 described a kind of resource utilization sewage disposal devices that utilize the automatic back flow reactor, it is characterized in that: described aerator (41-6) is rotary mixing aerator.
7. according to claims 1 described a kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor, it is characterized in that: described sludge deep treatment facility (60) is the ultrasonic sludge treatment facility.
8. according to claims 1 described a kind of resource utilization sewage disposal device that utilizes the automatic back flow reactor, it is characterized in that: described Sludge Composting stove (80) comprises cultivation device (81), is used for inoculator (82) and the Reaktionsofen (83) of mud and bacterial classification inoculation.
9. according to claims 4 described a kind of resource utilization sewage disposal devices that utilize the automatic back flow reactor, it is characterized in that: inclined-plane (41-2a) angle of described trapezoidal tilter (41-2) is 45 °-60 °.
10. the method that the resource utilization sewage disposal device that utilizes claim 1 described automatic back flow reactor carries out sewage disposal is characterized in that, comprises following treating processes;
1.1 sewage is introduced into grid (00) through pipeline;
1.2 grid (00) water outlet enters equalizing tank (10) again;
1.3 equalizing tank (10) water outlet enters the pre-reaction pond, the acidification that is hydrolyzed or anaerobic reaction;
1.4 after the processing of pretreatment pool, sewage enters automatic back flow reactor (40) and processes;
1.5 the water outlet of automatic back flow reactor (40) enters rapid filter (90);
Carry out ultraviolet and the sterilization of chlorine synergy 1.6 rapid filter (90) water outlet enters sterilization equipment (100), carry out again chlorine disinfectant through uv sterilisation first, the water outlet discharging after sterilization;
1.7 the excess sludge that the automatic back flow reactor produces enters sludge thickener (50), carries out gravity settling and concentrates;
1.8 mud carries out the ultrasonic wave advanced treatment by sludge deep treatment facility (60) after concentrated, and microbial cell wall in the mud is broken;
1.9 entering pressure filter (70), the mud behind the ultrasonic disruption dewaters;
1.10 the mud after the dehydration enters Sludge Composting stove (80) composting after crossing inoculation, can produce organic fertilizer through 4-7 days fermentation.
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| CN113029981A (en) * | 2021-03-08 | 2021-06-25 | 长春工程学院 | Method for detecting sludge total phosphorus of urban sewage plant |
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| CN109607983A (en) * | 2019-01-31 | 2019-04-12 | 四川美富特水务有限责任公司 | Aeration tank, sewage disposal system and sewage water treatment method |
| CN113029981A (en) * | 2021-03-08 | 2021-06-25 | 长春工程学院 | Method for detecting sludge total phosphorus of urban sewage plant |
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