CN103864269A - Device for treating high-concentration ammonia nitrogen sewage and process for treating high-concentration ammonia nitrogen sewage using device - Google Patents
Device for treating high-concentration ammonia nitrogen sewage and process for treating high-concentration ammonia nitrogen sewage using device Download PDFInfo
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- CN103864269A CN103864269A CN201410125971.9A CN201410125971A CN103864269A CN 103864269 A CN103864269 A CN 103864269A CN 201410125971 A CN201410125971 A CN 201410125971A CN 103864269 A CN103864269 A CN 103864269A
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Abstract
The present invention relates to a device for treating high-concentration ammonia nitrogen sewage and a process for treating high-concentration ammonia nitrogen sewage using the device. The device comprises a sedimentation tank, a stabilization tank, a biofilter, a gasification high-efficient nitrification reactor and an evaporation-crystallization reactor, the treatment process comprises allowing the sewage to flow into the above device, intercepting a majority of suspended materials in the sewage by the precipitation tank, and then enabling the sewage to flow into the stabilization tank, lifting the sewage in the stabilization tank by the pump to the biofilter for treating and enabling the sewage to flow back to the stabilization tank to form an internal circulation, allowing the spillover sewage to enter the gasification high-efficient nitrification reactor for nitrification treatment, enabling the spillover sewage subjected to the nitrification treatment to enter the evaporation-crystallization reactor to generate the final solid product. Through the above-mentioned technical solution, the present invention provides a device for treating high-concentration ammonia nitrogen sewage and a process for treating high-concentration ammonia nitrogen sewage using the device which can improve the treatment effect and realize the resource utilization.
Description
Technical field
The present invention relates to a kind of device of sewage disposal and the technique with this device.
Technical background
Ammonia nitrogen in sewage is one of principal element causing body eutrophication, in existing sewage treatment process, must remove fully ammonia nitrogen, to guarantee to process the ecological security of water outlet.
At present, urine, natural pond liquid, ammonia synthesis technology waste water, the common treatment process of the high-concentration ammonia nitrogenous wastewaters such as percolate has stripping, absorption, struvite crystallization, catalytic oxidation, biological nitration-denitrification, Ecological Disposal, the techniques such as reverse osmosis, but also there are following problems in current high-concentration ammonia nitrogenous wastewater treatment process: 1, for the most frequently used biological nitration-denitrification process, high-concentration ammonia nitrogenous wastewater can form nitrite nitrogen after nitrated, and the pH value of waste water is declined, suppress the nitrification function of nitrifier, thereby make nitrification not thorough, and in nitrifying process, need a large amount of aerations, and in aeration process the mass transfer effect of water-liquid interface oxygen how to improve be difficult problem always, in addition in denitrification process, need to add carbon source to guarantee the carrying out of reaction, this has just improved processing cost, and ammonia nitrogen cannot be realized resource utilization, 2, for stripping process, first needing to add alkali regulates the pH value of waste water to guarantee the generation of stripping process, the ammonia nitrogen of stripping need to absorb with acid simultaneously, and the waste water after stripping still also has a certain amount of ammonia nitrogen, need further to process to guarantee the up to standard of water outlet, the resource utilization of absorption liquid does not have good approach at present yet in addition, 3, for absorbing process and electrocatalytic oxidation metallization processes, in treating processes, sorbent material or power consumption consumption are larger, and processing cost is higher, thereby this technique is difficult to promote, and ammonia nitrogen cannot be realized effective resource utilization, 4,, for struvite crystallization processes and reverse osmosis process, although treatment effect is better, and product can resource utilization, has equally the too high problem of processing cost, 5,, for Ecological Disposal technique, its floor space is larger, in city, is difficult to carry out.
For the deficiency of existing high-concentration ammonia nitrogenous wastewater treatment process, be necessary to develop the technique of high efficiency, low cost, realize the effective processing to ammonia nitrogen in waste water, realize the recycling to ammonia nitrogen simultaneously.
Summary of the invention
The present invention overcomes the problem that existing high-concentration ammonia nitrogenous wastewater treatment technology exists, and provides a kind of and improves treatment effect and realize a kind of of resource utilization and process the device of high-concentration ammonia nitrogenous wastewater and process the technique of high-concentration ammonia nitrogenous wastewater with this device.
Realize above-mentioned purpose, device of the present invention adopts following technical scheme: a kind of device of processing high-concentration ammonia nitrogenous wastewater, it is characterized in that: include settling tank, stabilization pond, biological filter, gasification high efficient nitrator and evaporative crystallization reactor, wherein gasification high efficient nitrator includes airtight container, plantation basket, nitrated bag and atomizer pump, wherein plant basket be arranged on encloses container top or and side, on the basket body of plantation basket, be provided with eyelet, in plantation basket, plant the plant that is implanted with flourishing root system, described nitrated bag is hung in container, described evaporative crystallization reactor includes casing, solar heating plate, hot well, Multideck quotation, vent-pipe and wind-force extractor fan, wherein solar heating plate is arranged on the upper side of casing, Multideck quotation is arranged on the water inlet of casing, and Multideck offers into stepped, described vent-pipe is arranged on casing upside, wind-force extractor fan is arranged on vent-pipe place.
Pass through such scheme, effect of the present invention is: high concentration ammonia nitrogen sewage forms a set of novel treatment device by 5 unit such as settling tank, stabilization pond, biological filter, gasification high efficient nitrator, evaporative crystallization reactors, when sewage enters said apparatus, first remove the most suspended substances matter in sewage through the interception function of settling tank, then sewage enters stabilization pond, and the sewage in stabilization pond is risen in biological filter and is back in stabilization pond after processing by pump, forms internal recycle, and in the process of internal recycle, removes most of organism and carry out nitration reaction to a certain degree, excessive sewage in stabilization pond enters gasification high efficient nitrator, in gasification high efficient nitrator, high concentration ammonia nitrogen sewage carries out circulating atomization by the effect of vaporization pump and shower nozzle, in the process of atomization, nitrifier on nitrifier in the compounded mix hanging in gasification high efficient nitrator and growing plants root system and sewage have good gas-liquid-solid exchange interface, thereby improve its mass transfer effect, reach nitrated object fast, excessive sewage after nitrated enters evaporative crystallization reactor, in evaporative crystallization reactor, evaporate the solid-state product of final sewage after nitrated formation by warm air, realize resource utilization.
The further setting of this device technique scheme is: the upside of described stabilization pond offers rising pipe, this rising pipe access gasification high efficient nitrator, in described plantation basket, be provided with the mixed fillers by activated carbon granule and zeolite granular 1:1 preparation by volume, activated carbon granule and zeolite granular particle diameter are greater than 1cm, the diameter of the eyelet that plantation basket has is 0.8-1.5cm, filler in described nitrated bag is by nitrifier embedded immobilization filler, zeolite, activated carbon granule mixes according to volume ratio 1:1:1, and above-mentioned packing material size is all greater than 1cm, nitrifier embedded immobilization filler is fixed by polyvinyl alcohol embedding method or calcium alginate embedded method, in particle, embedded nitrobacteria concentration is greater than 10
6individual/cm
3, nitrated bag be nylon material, is shaped as rectangular parallelepiped, and sack surface offers the hole of diameter 0.8-1cm, and after nitrated bag is filled nitrated filler, thickness is no more than 3 cm, and in gasification high efficient nitrator, nitrated bag occupies internal space volume and is greater than more than 20%, the casing of described evaporative crystallization reactor can be made up of cement, metal sheet or plastic plate, and in order to fill for two-layer propping material is inner, one layer of heat preservation is cotton to be formed the wall of casing, and box inside surface scribbles black heat absorbing coating.
The effect of above-mentioned further scheme is: 1, by the setting of gasification high efficient nitrator four side plant growing baskets, nitrated bag and specified plant, can guarantee has the filler of some amount and the root system of unsettled growth in reactor, and having guaranteed can be for the interface of a large amount of nitrobacteria growths; 2, the operating method of circulating atomization repeatedly, can guarantee to enter ammonia nitrogen in sewage by fully nitrated; 3, gac and the zeolite of filler in plantation basket, can adsorb foul smell and ammonia nitrogen in sewage, and the ammonia nitrogen of absorption, by under the nitrifier of filling surface growth and the effect of other bacteriums in root system of plant and plantation basket, becomes nitric nitrogen by mineralized nitrogen, and stink is removed; 4, the specified plant arranging in gasification high efficient nitrator, not only there is certain economic worth, can realize recycling, and these plants are highly suitable under atomization condition and grow, the very flourishing and applicable nitrobacteria growth of root system, thus nitrification effect improved; 5, in nitrated bag, filler is set and can realizes absorbing ammonia nitrogen in sewage degradation of ammonia nitrogen, absorption stink substance the functions such as stink substance of degrading simultaneously, avoid the volatilization of stink substance in sewage treatment process, realize nitrated fast simultaneously; 6, in plantation basket and nitrated bag, place zeolite, can play the effect of absorption ammonia nitrogen, there is shock proof effect to entering ammonia nitrogen in high density; 7, carry out the mode of gas-liquid-solid mass transfer with atomization, greatly reduce the surging force to embedded immobilization filler, solved traditional blast aeration the embedded immobilization filler being placed in sewage is impacted to the excessive problem that causes filler fragmentation; 8, the structure of described evaporative crystallization reactor guarantees the internal insulation function of evaporative crystallization reactor, and internal surface scribbles black pigment, fully to absorb sun power.
The present invention utilizes the process technology scheme after said apparatus to be: sewage enters after said apparatus, first tackle the most suspended substances matter in sewage through settling tank, then sewage enters stabilization pond, sewage in stabilization pond is risen in biological filter and is back in stabilization pond after processing by pump, form internal recycle, excessive sewage in stabilization pond enters gasification high efficient nitrator, in this reactor, realize nitratedly fast, the stable sewage outflow after nitrated enters and finally in evaporative crystallization reactor forms solid-state product.
Adopt the effect reaching after above-mentioned process program to be: 1, settling tank can be removed the organic and inorganic suspended substance of larger particles, alleviate the load of follow-up sewage treatment process unit, and can, by after the suspended substance acidication of interception precipitation, further be transported to Subsequent Processing; 2, the internal circulation system that stabilization pond and biological filter form, can and degrade by the epontic microbial film of bio-filter stuffing small suspended substance interception, it is less containing particulate matter that assurance enters sewage in gasification high efficient nitrator, is unlikely to stop up atomizer; 3, in gasification high efficient nitrator, unsettled growing plants root system is the good attachment filler interface of nitrifier, by the nitrated bag and the compounded mix that hang, provides nitrobacteria growth that a large amount of space and interfaces is provided in addition; 4, in gasification high efficient nitrator, sewage is under the effect of atomizer pump, form with mist droplet contacts and realizes mass transfer with the nitrifier on above-mentioned filler and root system of plant surface, thereby change in traditional waste water treatment process, by modes such as air blast, air compressing is entered to the mode of carrying out oxygen transmission in sewage, and the transfer efficiency of oxygen is provided greatly, guarantee that nitrifier can realize nitrated fast; 5, in gasification high efficient nitrator, the effect of introduced plant, except microorganism growth interface is provided, by the physiological action such as secretion and absorption of root system of plant, regulates the pH of sewage etc., to promote the carrying out of nitration reaction; 6, in evaporative crystallization reactor, the stable sewage after nitrated can be carried out to evaporative crystallization, form the solid product of resource utilization, thus while avoiding directly not nitrated sewage being carried out to evaporative crystallization, ammonia nitrogen and the foul smell etc. of volatilization to around cause secondary pollution.
The further setting of process technology scheme of the present invention is: basket is planted according to 50% ratio perforate placement in described gasification high efficient nitrator container top and side, in plantation basket, place the mixed fillers by activated carbon granule and zeolite granular 1:1 preparation by volume, simultaneously, hang inside at internal tank nitrated bag is housed, the sewage that outside enters effect by atomizer pump in reactor forms atomizing droplet, after nitrated filler in atomizing droplet and unsettled root system of plant and unsettled nitrated bag contacts, under action of gravity, fall in the water leg of reactor lower part, and loop repeatedly iterative cycles by atomizer pump in water leg, and when the sewage entering exceed a certain amount of after, sewage after nitrated by reactor lower part overflow to evaporative crystallization reactor, sewage enters after evaporative crystallization reactor, the multi-layer evaporation dish of flowing through under the effect of gravity, the air of casing top solar heating plate heating phase box house, warm air is subject to thermodynamic-driven and under the effect of wind-force extractor fan, large quantity of moisture in sewage is flashed to water vapor and take away from vent-pipe, thereby make the nitrated sewage afterwards of process entering carry out evaporative crystallization formation solid, in this process, the water of condensation that part converges after solar heating plate and the condensation of reactor upper body is discharged after being collected by reactor bottom condensate trap.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is a kind of general illustration of processing high-concentration ammonia nitrogenous wastewater processing method of the embodiment of the present invention.
Embodiment
As shown in Figure 1, a kind of device of processing high-concentration ammonia nitrogenous wastewater, include settling tank 1, stabilization pond 2, biological filter 3, gasification high efficient nitrator 4 and evaporative crystallization reactor 5, wherein gasification high efficient nitrator 4 includes airtight container 41, plantation basket 42, nitrated bag 43 and atomizer pump 44, wherein plant basket 42 be arranged on encloses container 41 tops or and side, on the basket body of plantation basket 42, be provided with eyelet, in plantation basket, plant the plant that is implanted with flourishing root system, described nitrated bag 43 is hung in container 41, described evaporative crystallization reactor 5 includes casing 51, solar heating plate 52, hot well 53, Multideck quotation 54, vent-pipe 55 and wind-force extractor fan 56, wherein solar heating plate 52 is arranged on the upper side of casing 51, Multideck quotation 54 is arranged on the water inlet of casing 51, and 54 one-tenth of Multideck quotations are stepped, described vent-pipe 55 is arranged on casing 51 upsides, wind-force extractor fan 56 is arranged on vent-pipe 55 places, pass through such scheme, effect of the present invention is: high concentration ammonia nitrogen sewage is by settling tank 1, stabilization pond 2, biological filter 3, gasification high efficient nitrator 4, five unit such as evaporative crystallization reactor 5 grade form a set of novel treatment device, when sewage enters said apparatus, first remove the most suspended substances matter in sewage through the interception function of settling tank 1, then sewage enters stabilization pond 2, and the sewage in stabilization pond 2 is risen in biological filter 3 and is back in stabilization pond after processing by pump, forms internal recycle, and in the process of internal recycle, removes most of organism and carry out nitration reaction to a certain degree, excessive sewage in stabilization pond 2 enters gasification high efficient nitrator 4, in gasification high efficient nitrator 4, high concentration ammonia nitrogen sewage carries out circulating atomization by the effect of vaporization pump and shower nozzle, in the process of atomization, nitrifier in the compounded mix hanging in gasification high efficient nitrator 4 and nitrifier and the sewage on growing plants root system have good gas-liquid-solid exchange interface, thereby improve its mass transfer effect, reach nitrated object fast, excessive sewage after nitrated enters evaporative crystallization reactor 5, in evaporative crystallization reactor 5, evaporate the solid-state product of final sewage after nitrated formation by warm air, realize resource utilization.
In embodiments of the present invention, the upside of described stabilization pond 2 offers rising pipe, this rising pipe access gasification high efficient nitrator 4, in described plantation basket 42, be provided with the mixed fillers by activated carbon granule and zeolite granular 1:1 preparation by volume, activated carbon granule and zeolite granular particle diameter are greater than 1cm, the diameter of the eyelet that plantation basket 42 has is 0.8-1.5cm, filler in described nitrated bag 43 is by nitrifier embedded immobilization filler, zeolite, activated carbon granule mixes according to volume ratio 1:1:1, and above-mentioned packing material size is all greater than 1cm, nitrifier embedded immobilization filler is fixed by polyvinyl alcohol embedding method or calcium alginate embedded method, in particle, embedded nitrobacteria concentration is greater than 10
6individual/cm
3, nitrated bag be nylon material, is shaped as rectangular parallelepiped, and sack surface offers the hole of diameter 0.8-1cm, and after nitrated bag is filled nitrated filler, thickness is no more than 3 cm, and in gasification high efficient nitrator 4, nitrated bag 43 occupies internal space volume and is greater than more than 20%, the casing 51 of described evaporative crystallization reactor 5 can be made up of cement, metal sheet or plastic plate, and in order to fill for two-layer propping material is inner, one layer of heat preservation is cotton to be formed the wall of casing 51, and box inside surface scribbles black heat absorbing coating.
The embodiment of technique of the present invention is, sewage enters after said apparatus, first tackle the most suspended substances matter in sewage through settling tank 1, then sewage enters stabilization pond 2, sewage in stabilization pond 2 is risen in biological filter 3 and is back in stabilization pond 2 after processing by pump, form internal recycle, excessive sewage in stabilization pond 2 enters gasification high efficient nitrator 4, in this reactor 4, realize nitratedly fast, the stable sewage outflow after nitrated enters and finally in evaporative crystallization reactor 5 forms solid-state product.Adopt the effect reaching after above-mentioned process program to be: 1, settling tank 1 can be removed the organic and inorganic suspended substance of larger particles, alleviate the load of follow-up sewage treatment process unit, and can, by after the suspended substance acidication of interception precipitation, further be transported to Subsequent Processing; 2, the internal circulation system that stabilization pond 2 and biological filter 3 form, can degrade by small suspended substance interception and by the microbial film of biological filter 3 filling surface growths, it is less containing particulate matter that assurance enters sewage in gasification high efficient nitrator 4, is unlikely to stop up atomizer; 3, in gasification high efficient nitrator 4, unsettled growing plants root system is the good attachment filler interface of nitrifier, by the nitrated bag and the compounded mix that hang, provides nitrobacteria growth that a large amount of space and interfaces is provided in addition; 4, in gasification high efficient nitrator 4, sewage is under the effect of atomizer pump, form with mist droplet contacts and realizes mass transfer with the nitrifier on above-mentioned filler and root system of plant surface, thereby change in traditional waste water treatment process, by modes such as air blast, air compressing is entered to the mode of carrying out oxygen transmission in sewage, and the transfer efficiency of oxygen is provided greatly, guarantee that nitrifier can realize nitrated fast; 5, in gasification high efficient nitrator 4, the effect of introduced plant, except microorganism growth interface is provided, by the physiological action such as secretion and absorption of root system of plant, regulates the pH of sewage etc., to promote the carrying out of nitration reaction; 6, in evaporative crystallization reactor 5, stable sewage after nitrated can be carried out to evaporative crystallization, form the solid product of resource utilization, thus while avoiding directly not nitrated sewage being carried out to evaporative crystallization, ammonia nitrogen and the foul smell etc. of volatilization to around cause secondary pollution.
In process example of the present invention, basket 42 is planted according to 50% ratio perforate placement in described gasification high efficient nitrator container 41 tops and side, in plantation basket 42, place the mixed fillers by activated carbon granule and zeolite granular 1:1 preparation by volume, simultaneously, nitrated bag 43 is housed in container 41 hangs inside inside, the sewage that outside enters effect by atomizer pump in reactor 4 forms atomizing droplet, after nitrated filler in atomizing droplet and unsettled root system of plant and unsettled nitrated bag contacts, under action of gravity, fall in the water leg of reactor lower part, and loop repeatedly iterative cycles by atomizer pump in water leg, and when the sewage entering exceed a certain amount of after, sewage after nitrated by reactor lower part overflow to evaporative crystallization reactor 5, sewage enters after evaporative crystallization reactor 5, the multi-layer evaporation dish 54 of flowing through under the effect of gravity, casing 51 top solar heating plates 52 heat the air of casing 51 inside, warm air is subject to thermodynamic-driven and under the effect of wind-force extractor fan 56, large quantity of moisture in sewage is flashed to water vapor and take away from vent-pipe 55, thereby make the nitrated sewage afterwards of process entering carry out evaporative crystallization formation solid, in this process, the water of condensation that part converges after solar heating plate 52 and the condensation of reactor upper body is discharged after being collected by reactor bottom condensate trap.
Specific experiment embodiment of the present invention, urinates water as handling object take the dung that contains ammonia nitrogen in high density in No. 13 building, students' dormitory, Higher Education Zone, tea hill, Wenzhou City, amounts to population 200 people in No. 13 building, and day collection dung urine water is 1 ton of left and right.First the dung urine water of collecting enter the green underground preburied settling tank 1 in building No. 13, and pre-buried settling tank 1 is glass steel material, cylindrical, useful volume 10 m
3, long 5.7 m, diameter 1.5 m, remove most of ight soil by the interception of settling tank 1 after dung urine water flows to settling tank 1, and the ight soil of interception is hydrolyzed acidifying in settling tank.Acidication further enters stabilization pond containing the dung urine water of a small amount of suspended substance, and stabilization pond 2 is made up of glass steel material, cylindrical, useful volume 10 m
3long 5.7 m, diameter 1.5 m, stabilization pond 2 tops have 3 one of steel and concrete structure biological filters, and biological filter 3 is rectangular structure, the inner effectively high 1.5m × 1.0m × 2.0m that is followed successively by of length and width in biological filter 3, inner filling particle diameter is the gravel filling of 3 cm, dung urine water in stabilization pond 2 is transported in biological filter by 1.5 kW magnetic drive pumps, after biological filter 3 surface biological films are processed, is back in stabilization pond 2 and forms internal recycle, and the switch of magnetic drive pump is by controller control.After stabilization pond 2 and bioreactor for treatment, suspended matter in dung urine water is removed completely substantially, the water outlet of relative clean enters gasification high efficient nitrator 4 by the PVC stabilization pond upflow tube of DN50, the PP Plastic Welding that gasification high efficient nitrator 4 is 30 mm by thickness forms, length and width height is 25m × 2m × 1.5m, is placed on the greenery patches of 13 dormitory front portions.Nitrator 4 upsides and surrounding are left the hole that diameter is 10 cm; perforated area accounts for nitrator total surface area 50%; it is the high plantation of the plastic material for 15cm of 10 cm basket that diameter is installed in hole; in plantation basket, place according to volume 1:1 granulated active carbon and the zeolite that diameter is greater than 1cm; in plantation basket, have the hole that diameter is 1cm; perforated area accounts for 40% of basket surface-area, and in plantation basket, autumn and winter season is planted romaine lettuce and strawberry, and summer and autumn are planted tomato and cucumber.In nitrator 3 inside, hang the plastics bag of nylon material, plastics bag length and width height is 15cm × 3cm × 80 cm, filling nitrifier embedded immobilization filler, zeolite and activated carbon granule are mixed in inside by volume 1:1:1, above-mentioned several packing material size is all greater than 1cm, nitrifier embedded immobilization filler is fixed by polyvinyl alcohol embedding method, and in particle, embedded nitrobacteria concentration is 10
8individual/cm
3, sack surface opening diameter 1cm, at gasification high efficient nitrator upper space, it is 30% that nitrated bag occupies internal space volume.Urinate water after entering gasification high efficient nitrator 3 through pretreated dung, first enter the water leg of nitrator 3 bottom level approximately 30 cm, in water leg, be that the atomizer pump that 2.5 kW, lift are 5m is carried by power, by being arranged on the atomizer atomization of nitrator 3 bottoms.Atomizer is PVC material, height distance nitrator bottom 50 cm is set, according to 1/100 cm
2density setting, between atomizer, utilize the pvc pipe material of DN10 to be connected, atomizer pump is by time controller control, according to the cycle of operation continuous service that closes 20min work 1min.Stablize water outlet through the dung urine water after high efficiency nitrification and flow into evaporative crystallization reactor 5 by the overflow pvc pipe of DN50, evaporative crystallization reactor 5 sections are ladder structure, length and width are 10m × 1.5m, trapezoidal both sides height is respectively 0.8m and 1.0m, the double-layer stainless steel that evaporative crystallization reactor 5 is 1mm for housing by thickness is made, stainless steel inside accompanies the insulating cotton that thickness is 5mm, applies black heat-absorbing paint be beneficial to absorb heat at the stainless steel surface of evaporative crystallization reactor 5 inner sides.In evaporative crystallization reactor 5 inside, placement of multiple layers evaporating pan, Multideck quotation has stainless steel to make, and length and width height is 9.5m × 1.2m × 0.05m, overlays on the iron shelf that is positioned over evaporation inside reactor according to the interval of 10cm, places altogether 7 layers.The solar heating plates that utilize double-deck toughened glass that thickness is 5mm to make on evaporative crystallization reactor 5 tops, solar heating plate tilts to install according to the angle of 20 degree, double-deck tempering inside glass accompanies the thick gas cloud for 5mm, and solar heating plate can be movable.After air heating in evaporative crystallization reactor 5, discharge by being arranged on the DN150PVC pipe that the length on evaporative crystallization reactor 5 tops is 3m, pvc pipe top is provided with wind-force extractor fan, can accelerate warm air and carry water vapour discharge.Bottom in evaporative crystallization reactor 5, being also provided with stainless steel length and width high is 0.2m × 1.5m × 0.2m hot well, for collecting the water of condensation staying along solar heating plate after evaporative condenser at night, by Artificial Control, regularly in receiving tank, the pvc pipe by DN20 is discharged.Said apparatus was through the operation of 1 year, completely innoxious after the dung urine water treatment that contains ammonia nitrogen in high density and evaporative crystallization can be become to solid fertilizer, within average 1 year, can obtain 1.10 tons of solid fertilizers, and can gather in the crops in the winter time the romaine lettuce of approximately 500 kg, tomato and the cucumber of gathering in the crops approximately 300 kg summer, resource utilization effect is remarkable.
Claims (6)
1. process the device of high-concentration ammonia nitrogenous wastewater for one kind, it is characterized in that: include settling tank, stabilization pond, biological filter, gasification high efficient nitrator and evaporative crystallization reactor, wherein gasification high efficient nitrator includes airtight container, plantation basket, nitrated bag and atomizer pump, wherein plant basket be arranged on encloses container top or and side, on the basket body of plantation basket, be provided with eyelet, in plantation basket, plant the plant that is implanted with flourishing root system, described nitrated bag is hung in container, described evaporative crystallization reactor includes casing, solar heating plate, hot well, Multideck quotation, vent-pipe and wind-force extractor fan, wherein solar heating plate is arranged on the upper side of casing, Multideck quotation is arranged on the water inlet of casing, and Multideck offers into stepped, described vent-pipe is arranged on casing upside, wind-force extractor fan is arranged on vent-pipe place.
2. the device of processing high-concentration ammonia nitrogenous wastewater according to claim 1, it is characterized in that: the upside of described stabilization pond offers rising pipe, this rising pipe access gasification high efficient nitrator, in described plantation basket, be provided with the mixed fillers by activated carbon granule and zeolite granular 1:1 preparation by volume, activated carbon granule and zeolite granular particle diameter are greater than 1cm, the diameter of the eyelet that plantation basket has is 0.8-1.5cm, filler in described nitrated bag is by nitrifier embedded immobilization filler, zeolite, activated carbon granule mixes according to volume ratio 1:1:1, and above-mentioned packing material size is all greater than 1cm, nitrifier embedded immobilization filler is fixed by polyvinyl alcohol embedding method or calcium alginate embedded method, in particle, embedded nitrobacteria concentration is greater than 10
6individual/cm
3, nitrated bag be nylon material, is shaped as rectangular parallelepiped, and sack surface offers the hole of diameter 0.8-1cm, and after nitrated bag is filled nitrated filler, thickness is no more than 3 cm, and in gasification high efficient nitrator, nitrated bag occupies internal space volume and is greater than more than 20%.
3. the device of processing high-concentration ammonia nitrogenous wastewater according to claim 1 and 2, it is characterized in that: the casing of described evaporative crystallization reactor can be made up of cement, metal sheet or plastic plate, in order to fill for two-layer propping material is inner, one layer of heat preservation is cotton to be formed the wall of casing, and box inside surface scribbles black heat absorbing coating.
4. utilize the device in claim 1 to realize the technique of processing high-concentration ammonia nitrogenous wastewater, it is characterized in that: sewage enters after said apparatus, first tackle the most suspended substances matter in sewage through settling tank, then sewage enters stabilization pond, sewage in stabilization pond is risen in biological filter and is back in stabilization pond after processing by pump, form internal recycle, excessive sewage in stabilization pond enters gasification high efficient nitrator, in this reactor, realize nitrated fast, stable sewage outflow after nitrated enters the solid-state product of final formation in evaporative crystallization reactor.
5. the technique of processing high-concentration ammonia nitrogenous wastewater according to claim 4, it is characterized in that: basket is planted according to 50% ratio perforate placement in described gasification high efficient nitrator container top and side, in plantation basket, place the mixed fillers by activated carbon granule and zeolite granular 1:1 preparation by volume, simultaneously, hang inside at internal tank nitrated bag is housed, the sewage that outside enters effect by atomizer pump in reactor forms atomizing droplet, after nitrated filler in atomizing droplet and unsettled root system of plant and unsettled nitrated bag contacts, under action of gravity, fall in the water leg of reactor lower part, and loop repeatedly iterative cycles by atomizer pump in water leg, and when the sewage entering exceed a certain amount of after, sewage after nitrated by reactor lower part overflow to evaporative crystallization reactor.
6. according to the technique of the processing high-concentration ammonia nitrogenous wastewater described in claim 4 or 5, it is characterized in that: sewage enters after evaporative crystallization reactor, the multi-layer evaporation dish of flowing through under the effect of gravity, the air of casing top solar heating plate heating phase box house, warm air is subject to thermodynamic-driven and under the effect of wind-force extractor fan, large quantity of moisture in sewage is flashed to water vapor and take away from vent-pipe, thereby make the nitrated sewage afterwards of process entering carry out evaporative crystallization formation solid, in this process, the water of condensation that part converges after solar heating plate and the condensation of reactor upper body is discharged after being collected by reactor bottom condensate trap.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445816B (en) * | 2014-11-25 | 2016-08-24 | 南昌大学 | A kind of ammonia nitrogen in high density that processes is raised pigs the method for biogas slurry |
| CN108325373A (en) * | 2018-01-26 | 2018-07-27 | 安徽金源农林专业合作社 | A kind of organic waste-water treating apparatus |
| CN110512905A (en) * | 2019-08-05 | 2019-11-29 | 温州大学 | A kind of bio-toilet |
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| CN111704482A (en) * | 2020-06-10 | 2020-09-25 | 清华大学 | Processing system and method for preparing ammonium nitrate |
| CN113087287A (en) * | 2021-03-17 | 2021-07-09 | 同济大学 | System and method for treating high-salinity wastewater at low cost |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104445816B (en) * | 2014-11-25 | 2016-08-24 | 南昌大学 | A kind of ammonia nitrogen in high density that processes is raised pigs the method for biogas slurry |
| CN108325373A (en) * | 2018-01-26 | 2018-07-27 | 安徽金源农林专业合作社 | A kind of organic waste-water treating apparatus |
| CN108325373B (en) * | 2018-01-26 | 2021-03-19 | 安徽金源农牧科技有限公司 | Organic wastewater treatment device |
| CN110512905A (en) * | 2019-08-05 | 2019-11-29 | 温州大学 | A kind of bio-toilet |
| CN111233160A (en) * | 2020-03-23 | 2020-06-05 | 深圳市海晟环保科技有限公司 | Modularized non-discharge landfill leachate treatment system and treatment method |
| CN111704482A (en) * | 2020-06-10 | 2020-09-25 | 清华大学 | Processing system and method for preparing ammonium nitrate |
| CN113087287A (en) * | 2021-03-17 | 2021-07-09 | 同济大学 | System and method for treating high-salinity wastewater at low cost |
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