CN104496027A - Short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage - Google Patents
Short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage Download PDFInfo
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- CN104496027A CN104496027A CN201410818242.1A CN201410818242A CN104496027A CN 104496027 A CN104496027 A CN 104496027A CN 201410818242 A CN201410818242 A CN 201410818242A CN 104496027 A CN104496027 A CN 104496027A
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Abstract
The invention discloses a short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage. The short-range nitrogen-phosphorus inorganic reactor comprises an anaerobic tank and a short-range aerobic biofilter tank, as well as a connecting pipe, wherein the anaerobic tank is sequentially divided into a water inlet area, a combined filler area and a settling area, the short-range aerobic biofilter tank is sequentially provided with a filler area, a bearing area and a water outlet area, the filler area sequentially consists of a top filler area, a middle filler area and a bottom filler area, wherein fillers in the top filler area are coal slag fillers, fillers in the middle filler area are volcanic rock fillers, the fillers in the bottom filler area are ceramsite fillers, and the settling area of the anaerobic tank is communicated with the top filler area of the short-range aerobic biofilter tank through the connecting pipe. The fillers in the aerobic biofilter tank are combination fillers of the coal slag fillers, the volcanic rock fillers and ceramsite fillers, so that the inorganic rate of organic nitrogen and phosphorus in sewage can be greatly improved, and the amount of ammonia nitrogen and phosphate directly absorbed and utilized by crops can be greatly increased finally.
Description
Technical field
The present invention relates to a kind of inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas, belong to water treatment and sewage recycling utilizes technical field.
Background technology
At present, along with country constantly increases the concern of waste water control problem, input continues to increase, sewage disposal technology gets the attention, increasing technological innovation, makes sewage disposal technology be tending towards ripe, and have also been obtained in place, China vast rural area and promote widely and use.At present, external many water treatment experts actively advocate the sewage disposal concept of " treatment in situ is reuse on the spot, realizes water balance and water cycle ".Domestic sewage in rural areas, from process to the transformation of resource utilization, is not only the inexorable trend of water technology development from now on, is also solve in-problem effective way in the sanitary sewage disposal of Rural Areas at Present.The nitrogen contained in sanitary sewage, phosphorus are a kind of pollutents to water surrounding, but it is then necessary nutritive substance to agriculture production, are a kind of resources of preciousness, therefore, it is possible to it effectively being utilized is the important channel realizing the ecological agriculture.Integration short distance nitrogen phosphorus inorganization reactor by inorganization for organonitrogen phosphorus, and can reduce the organic concentration in sewage, but the use of single creature filler in short distance aerobic biofilter, there is more problem.The inorganization effect of part filler organonitrogen phosphorus is bad, and a part of filler reoxygenation effect is bad, and easily blocks, and a part of filler is bad to organic matter removal effect.Therefore, a kind of exploitation of the combined stuffing for improving the inorganization effect of domestic sewage in rural areas nitrogen phosphorus is necessary.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to provide a kind of inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas.
Summary of the invention: in order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas, comprise anaerobic pond and short distance aerobic biofilter, also comprise pipe connecting, described anaerobic pond is divided into inhalant region successively, combined stuffing district and settling region, described short distance aerobic biofilter is provided with packing area successively, bearing area and exhalant region, described packing area comprises packing area, top successively, packing area, middle part and bottom filling district, wherein, the filler of packing area, described top is cinder filler, the filler of packing area, described middle part is volcanic filling material, the filler in described bottom filling district is ceramics filling, the settling region of described anaerobic pond is connected by pipe connecting with the packing area, top of described short distance aerobic biofilter.
Further preferably, described packing area total height is 1.0m, and the height of packing area, described top is 0.2m, and the height of packing area, described middle part is 0.4m, and the height in described bottom filling district is 0.4m.
Further preferably, described cinder filler is the cinder of particle diameter 6-8mm, and described volcanic filling material particle diameter is the volcanics of 3-5mm, and described ceramics filling particle diameter is the haydite of 3-6mm.
Further preferably, described packing area accounts for 75% of described short distance aerobic biofilter volume.
Further preferably, the filler in described combined stuffing district is the combined stuffing of Ф 150mm × 80mm, and described combined stuffing district accounts for 80% of described anaerobic pond volume.
Beneficial effect: all adopt single filler compared in aerobic biofilter in prior art, the filler of short distance aerobic biofilter of the present invention is the combined stuffing of cinder filler, volcanic filling material and ceramics filling composition, packing area, top cinder filler is under the condition of natural ventilation oxygenation, packing area, the top reoxygenation as early as possible of short distance aerobic biofilter can be realized, improve water inlet DO concentration, also avoid the accumulation of higher inactive substance on top, filter tank, and then the problem avoiding the blocking of top, filter tank occurs; Organonitrogen maximizedly can be converted into ammonia nitrogen by packing area, middle part volcanic filling material, organophosphorus is converted into phosphoric acid salt, greatly reduces organic concentration in sewage; Bottom filling district ceramics filling can avoid a large amount of mineralized nitrogens to be nitrite nitrogen and nitric nitrogen, avoid phosphoric acid salt too much by microbial film assimilation, and ensure that outlet water organic substance concentration reaches required standard (" agricultural irrigation water quality standard " (GB5084-2005)).
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the treatment of the inorganization reactor of short distance nitrogen phosphorus of domestic sewage in rural areas.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As shown in Figure 1, the inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas of the present invention, comprise anaerobic pond 1 and short distance aerobic biofilter 2, also comprise pipe connecting 3, anaerobic pond 1 is divided into inhalant region 4 successively, combined stuffing district 5 and settling region 6, short distance aerobic biofilter 2 is provided with packing area successively, bearing area 10 and exhalant region 11, packing area comprises packing area, top 7 successively, packing area 8, middle part and bottom filling district 9, wherein, the filler of packing area, top 7 is cinder filler, the filler of packing area 8, middle part is volcanic filling material, the filler in bottom filling district 9 is ceramics filling, the settling region 6 of anaerobic pond 1 is connected by pipe connecting 3 with the packing area, top 7 of short distance aerobic biofilter 2.
Wherein, the filler in combined stuffing district 5 is Ф 150mm × 80mm combined stuffing, axial cord is plastic ties, surrounding is that hydroformylation fiber or POLYESTER YARNS are evenly pressed on the large plastic hoop of two circle, the length of combined stuffing filler bundle is 0.4m, the number of filler bundle is 8, and filler bundle is evenly suspended in combined stuffing district 5, and combined stuffing district 5 accounts for 80% of anaerobic pond 1 volume; In short distance aerobic biofilter, the height of packing area, top 7 is 0.2m, the height of packing area 8, middle part is 0.4m, the height in bottom filling district 9 is 0.4m, cinder filler is the cinder of particle diameter 6-8mm, volcanic filling material particle diameter is the volcanics of 3-5mm, and ceramics filling particle diameter is the haydite of 3-6mm, and packing area accounts for 75% of short distance aerobic biofilter 2 volume.
Aerobic biofilter of the present invention is also provided with lift pump 12 on pipe connecting 3, the water outlet of settling region 6 enters in short distance aerobic biofilter 2 by the lift pump 12 on pipe connecting 3, a water distributor 13 can also be established in that end that pipe connecting 3 is connected with packing area, top 7, sewage in pipe connecting 3 is become the top layer that fine liquid particles is sprayed at packing area, top 7 by water distributor 13, top, settling region 6 is also provided with sealing-ring 14 and cover plate 15 successively, shore pipe 16 is also provided with in inhalant region 4, the sidewall of short distance aerobic biofilter 2 packing area is provided with vent-pipe 17, perforation supporting plate 18 is provided with between bearing area 10 and exhalant region 11, top, exhalant region 11 sidewall is provided with ventilation hole 19, in the middle part of exhalant region 11, sidewall is provided with rising pipe 20, the bottom of exhalant region 11 is provided with shore pipe 21.
Sewage enters the anaerobic pond 1 with combined stuffing district 5 from inhalant region 4, hydraulic retention 3h-4h, sewage fully contacts with the microbial film on the combined stuffing in combined stuffing district 5, thus by the part organonitrogen in sewage, phosphorus is converted into ammonia nitrogen, phosphoric acid salt, partial organic substances is degraded to small organic molecule, sewage then enters settling region 6, the packing area, top 7 of short distance aerobic biofilter 2 is entered by pipe connecting 3, sewage in pipe connecting 3 can form by water distributor 11 top layer that fine liquid particles is sprayed at packing area, top 7, under natural aerobic condition, sewage first with top packing layer 7 cinder filler contact reacts, because cinder particle diameter is larger, tap density is less, therefore, it is possible to make sewage reoxygenation as early as possible, retain the suspended particulate that particle in sewage is larger, avoid higher inactive substance in the accumulation blocking of top, filter tank simultaneously, along with sewage is to dirty, sewage enters packing area 8, middle part, sewage and volcanic filling material contact reacts, the particle diameter of volcanic filling material is less, pile up comparatively closely knit, the inorganization effect of its nitrogen phosphorus and COD removal effect all more excellent, maximized organonitrogen can be converted into ammonia nitrogen, organophosphorus is converted into phosphoric acid salt, further organic concentration is reduced simultaneously, sewage continues to dirty, enter bottom filling district 9, sewage and ceramics filling contact reacts, because the volcanic filling material nitrification of packing area, middle part 8 is also stronger, while organonitrogen is converted into ammonia nitrogen, can be also nitrite nitrogen and nitric nitrogen by mineralized nitrogen, organonitrogen in sewage can not only be converted into ammonia nitrogen by ceramics filling further, organophosphorus is converted into phosphoric acid salt, and reduction organic concentration, the conversion of ammonia nitrogen can also be avoided to run off, therefore, it is possible to maximize the nitrogen retaining in sanitary sewage and be easy to farm crop and utilize, P form and quantity, ensure that outlet water organic substance concentration reaches " agricultural irrigation water quality standard " (GB5084-2005), sewage flows through bearing area 10 after the reaction of packing area, enter exhalant region 11, enter farmland by the rising pipe 20 of exhalant region 11 to irrigate.
Pilot plant test shows, when volumetric loading is 0.80kgCOD/ (m3d), when hydraulic load is 5.40m3/ (m2d), the inorganic rate of short distance nitrogen phosphorus of the present invention inorganization reactor organonitrogen is 55.88%, the inorganic rate of water outlet organophosphorus reaches 94.45%, COD clearance reaches 84.68%, water outlet ammonia nitrogen concentration 55.65mg/L, phosphate concn 7.35mg/L, COD concentration 32mg/L, operating performance is all better than only adopting single cinder filler or volcanic filling material or ceramics filling, as shown in table 1.During steady running, short distance nitrogen phosphorus of the present invention inorganization reactor water outlet ammonia nitrogen concentration is 40-70mg/L, and phosphate concn is 4-8mg/L, COD concentration is below 50mg/L.
Table 1 for combined stuffing and single filler to sewage disposal in the inorganic rate of organonitrogen, the inorganic rate of organophosphorus is and contrast on COD clearance
The mode of combined stuffing is adopted in the short distance aerobic biofilter of the inorganization reactor of short distance nitrogen phosphorus of the present invention, substantially increase the reoxygenation speed of intaking in short distance aerobic biofilter, the organonitrogen in sewage is made to be converted into ammonia nitrogen greatly, organophosphorus is converted into phosphoric acid salt, and to avoid a large amount of mineralized nitrogen be that nitrite nitrogen, nitric nitrogen and phosphoric acid salt assimilate and absorbs, finally substantially increase the ammonia nitrogen and phosphatic amount that directly can be absorbed by farm crop.The inorganization reactor of short distance nitrogen phosphorus of the present invention is maximized remains in domestic sewage in rural areas the forms of nitrogen and phosphorus and quantity that are easy to farm crop utilization, and the organic concentration in irrigation water is reduced greatly, solve and directly use sewage irrigation and the problem such as rotten of farm crop, soil compaction that causes, by the nitrogen in sewage, phosphorus safe reuse in field irrigation, achieve the recycling of nitrogen phosphorus in domestic sewage in rural areas.
Above-mentioned embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not limited by the examples; other are any do not deviate from spirit of the present invention and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. the inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas, it is characterized in that: comprise anaerobic pond and short distance aerobic biofilter, also comprise pipe connecting, described anaerobic pond is divided into inhalant region successively, combined stuffing district and settling region, described short distance aerobic biofilter is provided with packing area successively, bearing area and exhalant region, described packing area comprises packing area, top successively, packing area, middle part and bottom filling district, wherein, the filler of packing area, described top is cinder filler, the filler of packing area, described middle part is volcanic filling material, the filler in described bottom filling district is ceramics filling, the settling region of described anaerobic pond is connected by pipe connecting with the packing area, top of described short distance aerobic biofilter.
2. the inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas according to claim 1, it is characterized in that: the total height of described packing area is 1.0m, the height of packing area, described top is 0.2m, the height of packing area, described middle part is 0.4m, and the height in described bottom filling district is 0.4m.
3. the inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas according to claim 1, it is characterized in that: described cinder filler is the cinder of particle diameter 6-8mm, described volcanic filling material particle diameter is the volcanics of 3-5mm, and described ceramics filling particle diameter is the haydite of 3-6mm.
4. the inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas according to claim 1, is characterized in that: described packing area accounts for 75% of described short distance aerobic biofilter volume.
5. the inorganization reactor of short distance nitrogen phosphorus for the treatment of domestic sewage in rural areas according to claim 1, it is characterized in that: the filler in described combined stuffing district is the combined stuffing of Ф 150mm × 80mm, and described combined stuffing district accounts for 80% of described anaerobic pond volume.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410818242.1A CN104496027A (en) | 2014-12-24 | 2014-12-24 | Short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage |
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| CN201410818242.1A CN104496027A (en) | 2014-12-24 | 2014-12-24 | Short-range nitrogen-phosphorus inorganic reactor for treating rural domestic sewage |
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Cited By (2)
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| CN105585121A (en) * | 2016-02-03 | 2016-05-18 | 安徽乙地生态科技有限公司 | Unit-type bionic oxygen-carrying technological sewage purification device |
| CN109399808A (en) * | 2018-12-10 | 2019-03-01 | 云南大学 | A kind of bacteria filter device and application method of high-efficient purification sewage |
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2014
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Application publication date: 20150408 |