CN202849213U - Farming wastewater efficient treatment system - Google Patents
Farming wastewater efficient treatment system Download PDFInfo
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- CN202849213U CN202849213U CN 201220544551 CN201220544551U CN202849213U CN 202849213 U CN202849213 U CN 202849213U CN 201220544551 CN201220544551 CN 201220544551 CN 201220544551 U CN201220544551 U CN 201220544551U CN 202849213 U CN202849213 U CN 202849213U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 26
- 238000009313 farming Methods 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000010865 sewage Substances 0.000 claims abstract description 34
- 239000010802 sludge Substances 0.000 claims description 22
- 238000009395 breeding Methods 0.000 claims description 17
- 230000001488 breeding effect Effects 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 9
- 238000004065 wastewater treatment Methods 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 abstract 2
- 238000010790 dilution Methods 0.000 abstract 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 230000006872 improvement Effects 0.000 description 8
- 101150054854 POU1F1 gene Proteins 0.000 description 5
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- 230000020477 pH reduction Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 230000009189 diving Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
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- 229920003023 plastic Polymers 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000256113 Culicidae Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 206010059410 Faecaluria Diseases 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
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- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical group [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
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- 238000012546 transfer Methods 0.000 description 1
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- 238000003911 water pollution Methods 0.000 description 1
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Abstract
The utility model discloses a farming wastewater efficient treatment system which comprises a biogas digester and a first-level aerobic-facultative-aerobic sewage treatment device, wherein the first-level aerobic-facultative-aerobic sewage treatment device comprises a first-level nitrification tank, a first-level denitrification tank, a first-level aerobic tank and a first-level sedimentation tank; a water outlet end of the biogas digester is connected with a water inlet end of the first-level nitrification tank through a pipeline; a water outlet end of the first-level nitrification tank is connected with a water inlet end of the first-level denitrification tank through a pipeline; a water outlet end of the first-level denitrification tank is connected with a water inlet end of the first-level aerobic tank through a pipeline; and a water outlet end of the first-level aerobic tank is connected with a water inlet end of the first-level sedimentation tank through a pipeline. The farming wastewater efficient treatment system disclosed by the utility model can directly treat high-concentration farming wastewater without adding water for dilution, and also can collect and utilize the produced biogas.
Description
Technical field
The utility model relates to the efficient treatment system of a kind of breeding wastewater.
Background technology
Along with expanding economy, the increase of population, the improving constantly of standard of living, the people is increasing to the demand of meat-based food, and livestock industry has also obtained huge development, and the large-scale cultivation field is more and more.But simultaneously, the pollution of livestock-raising waste water becomes one of main water pollution source, and its main source is plant.Because the urban-rural integration development, city and Suburban Land are limited, make the utilization ratio of plant's ight soil and sewage also limited, and a lot of plants are difficult to cultivation ight soil and sewage are effectively processed.If undressed movement is arranged in irrigation canals and ditches, and the fecal sewage in the movement, stench, mosquitos and flies can not only cause rivers and creeks, the turbid black generation stink of irrigation canals and ditches, also can make reservoir and lake eutrophication, cause drinking water pollution, harm people's health.
In order to make cultivation class waste water reach emission standard, people have invented a variety of methods.Biological treatment is one of method wherein, and biological treatment is the method that the metabolism of utilization biological (bacterium, mould and protozoon) is processed various waste water, sewage and fecaluria.Biological treatment has mainly been developed two kinds for the treatment of systems at present: anaerobic-aerobic-charcoal contact treatment system, anaerobic-aerobic biological disk treatment system.
Anaerobic-aerobic-charcoal contact treatment system, main design parameters is as follows: equalizing tank: HRT 8～10h; Anaerobic pond: HRT 3～5h; Aerobic Pond: HRT 6～8h; Charcoal pond: HRT 1～2h.Equalizing tank is connected with anaerobic pond by pipeline, and anaerobic pond is connected with Aerobic Pond by pipeline, and Aerobic Pond is connected with the charcoal pond by pipeline.The anaerobic-aerobic biological disk treatment system is together in series anaerobe rotating disk and aerobe rotating disk, anaerobism in this treatment system, aerobicly respectively has mud to separate and reflux, and the excess sludge of whole system all is back to the anaerobe rotating disk.
But these two kinds of Sewage treatment systemss all can't directly be processed the breeding wastewater of the high density that is produced by plant, need to could process after the breeding wastewater thin up of high density.
The utility model content
The purpose of this utility model is for the problems referred to above, provides a kind of efficient treatment system of breeding wastewater that thin up is just directly processed high density that need not to society.
The technical solution of the utility model is: design the efficient treatment system of a kind of breeding wastewater, comprising: methane-generating pit and one-level be aerobic-oxygen-aerobic sewage treatment device of holding concurrently, described one-level is aerobic-and the oxygen-aerobic sewage treatment device of holding concurrently comprises: the one-level nitrification tank, one-level denitrification pond, one-level Aerobic Pond and one-level settling tank, the water side of described methane-generating pit is connected by the feed-water end of pipeline with described one-level nitrification tank, the water side of described one-level nitrification tank is connected by the feed-water end of pipeline with described one-level denitrification pond, the water side in described one-level denitrification pond is connected by the feed-water end of pipeline with described one-level Aerobic Pond, and the water side of described one-level Aerobic Pond is connected by the feed-water end of pipeline with described one-level settling tank.
As to improvement of the present utility model, also comprise secondary aerobic-oxygen-aerobic sewage treatment device of holding concurrently, described secondary is aerobic-oxygen-aerobic sewage treatment device of holding concurrently comprises; Secondary nitrification tank, secondary denitrification pond, secondary Aerobic Pond and second-level settling pond; The water side of described one-level settling tank is connected by the feed-water end of pipeline with described secondary nitrification tank, the water side of described secondary nitrification tank is connected by the feed-water end of pipeline with described secondary denitrification pond, the water side in described secondary denitrification pond is connected by the feed-water end of pipeline with described secondary Aerobic Pond, and the water side of described secondary Aerobic Pond is connected with the water side of described second-level settling pond by pipeline.
As to improvement of the present utility model, the bottom of described one-level settling tank is provided with one-level settling tank sludge pump, and the exit end of described one-level settling tank sludge pump is connected by the entrance end of pipeline with described one-level nitrification tank.
As to improvement of the present utility model, also comprise the one-level ventilation plant, the outlet side of described one-level ventilation plant by pipeline respectively with described one-level nitrification tank be connected the inlet end of one-level Aerobic Pond inside and be connected.
As to improvement of the present utility model, be provided with described biological filtering material for waste water treatment in the described secondary nitrification tank; Described secondary denitrification is provided with biological filtering material for waste water treatment in the pond; Be provided with described biological filtering material for waste water treatment in the described secondary Aerobic Pond.
As to improvement of the present utility model, the bottom of described second-level settling pond is provided with the second-level settling pond sludge pump, and the exit end of described second-level settling pond sludge pump is connected by the entrance end of pipeline with described secondary nitrification tank.
As to improvement of the present utility model, also comprise the secondary ventilation plant, the outlet side of described secondary ventilation plant is connected by the inlet end of pipeline with described secondary nitrification tank inside; The outlet side of described secondary ventilation plant is connected by the inlet end of pipeline with described secondary Aerobic Pond inside.
As to improvement of the present utility model, also comprise solid-liquid separator, described solid-liquid separator is connected with described methane-generating pit feed-water end by pipeline.
As to improvement of the present utility model, also comprise the storage slag bath, described solid-liquid separator is connected with described storage slag bath.
The utlity model has and both can need not the just direct high-concentration culture waste water of processing of thin up, the advantage that the collecting methane that produces can be utilized again.
Description of drawings
Fig. 1 is the two dimensional structure synoptic diagram of a kind of embodiment of the utility model.
Wherein: 1. methane-generating pit; 2. secondary equalizing tank; 3. one-level nitrification tank; 4. one-level denitrification pond; 5. one-level Aerobic Pond; 6. one-level settling tank; 7. secondary nitrification tank; 8. secondary denitrification pond; 9. secondary Aerobic Pond; 10. second-level settling pond; 11. acidification pool; 12. solid-liquid separator; 13. one-level equalizing tank; 14. grating tank; 15. air water separator; 16. thionizer; 17. spark arrester; 18. biogas generator; 19. storage slag bath; 20. mummification room; 21. warehouse; 22. one-level ventilation plant; 23. secondary ventilation plant; 24. biological filtering material for waste water treatment; 2a. secondary equalizing tank lift pump; 4a. diving mixer; 6a. one-level settling tank sludge pump; 10a. second-level settling pond sludge pump; 13a. one-level equalizing tank lift pump.
Embodiment
See also Fig. 1, what Fig. 1 disclosed is the efficient treatment system of a kind of breeding wastewater, comprise methane-generating pit 1, secondary equalizing tank 2, one-level aerobic-oxygen-aerobic sewage treatment device of holding concurrently, secondary be aerobic-oxygen-aerobic sewage treatment device of holding concurrently, acidification pool 11, solid-liquid separator 12, one-level equalizing tank 13, grating tank 14, air water separator 15, thionizer 16, spark arrester 17, biogas generator 18, storage slag bath 19, mummification room 20, warehouse 21, one-level ventilation plant 22, secondary ventilation plant 23.Secondary equalizing tank lift pump 2a, diving mixer 4a, one-level settling tank sludge pump 6a, one-level equalizing tank lift pump 13a.Described one-level is aerobic-and the oxygen-aerobic sewage treatment device of holding concurrently comprises one-level nitrification tank 3, one-level denitrification pond 4, one-level Aerobic Pond 5, one-level settling tank 6, diving mixer 4a and one-level settling tank sludge pump 6a; Described secondary is aerobic-and the oxygen-aerobic sewage treatment device of holding concurrently comprises secondary nitrification tank 7, secondary denitrification pond 8, secondary Aerobic Pond 9, second-level settling pond 10, second-level settling pond sludge pump 10a and biological filtering material for waste water treatment 24.
In the utility model, described methane-generating pit 1 can effectively carry out pre-treatment to breeding wastewater, and has reduced greatly the Pollutant levels that methane-generating pit water outlet, follow-up aerobic treatment are intake simultaneously, for follow-up aerobic treatment provides good pretreating effect.
In the utility model, be provided with described diving mixer 4a in the described denitrification pond 4, described stirrer 4a mixes described denitrification pond 4 interior mud mixtures.
In the utility model, described biological filtering material for waste water treatment 24 is sewage disposal combination biologic packing material or sewage disposal stereo-elastic biologic packing material.Sewage disposal combination biologic packing material is to form in the development of the basis of soft-filler and semi soft packing, and it has both advantages concurrently.Its structure is to make the clinching of plastics disk into two circles large plastic hoop, and hydroformylation fiber or POLYESTER YARNS are pressed on the ring of ring, and fibrous bundle is evenly distributed; Inner ring is flakes plastics branches, can biofilm, can effectively cut bubble again, and improve transfer rate and the utilization ratio of oxygen.The aqueous vapor microbial film fully being exchanged, the organism in the water is efficiently processed, is the bio-carrier that a kind of biological contact oxidation process and Unareobic fermentation are processed waste water.
In the utility model, the outlet side of described one-level ventilation plant 22 by pipeline respectively with described one-level nitrification tank 3 be connected the inlet end of one-level Aerobic Pond 5 inside and be connected.The outlet side of described secondary ventilation plant 23 by pipeline respectively with described secondary nitrification tank 7 be connected the inlet end of secondary Aerobic Pond 9 inside and be connected.
The water side of described methane-generating pit 1 is connected by the feed-water end of pipeline with described secondary equalizing tank 2, described secondary equalizing tank 2 bottoms are provided with described secondary equalizing tank lift pump 2a, the water side of described secondary equalizing tank lift pump 2a be connected the feed-water end of one-level nitrification tank 3 and connect, the water side of described one-level nitrification tank 3 is connected by the feed-water end of pipeline with described one-level denitrification pond 4, the water side in described one-level denitrification pond 4 is connected by the feed-water end of pipeline with described one-level Aerobic Pond 5, the water side of described one-level Aerobic Pond 5 is connected by the feed-water end of pipeline with described one-level settling tank 6, the bottom of described one-level settling tank 6 is provided with described one-level settling tank sludge pump 6a, and the exit end of described one-level settling tank sludge pump 6a is connected by the entrance end of pipeline with described one-level nitrification tank 3.
The water side of described one-level settling tank 6 is connected by the feed-water end of pipeline with described secondary nitrification tank 7, the water side of described secondary nitrification tank 7 is connected by the feed-water end of pipeline with described secondary denitrification pond 8, the water side in described secondary denitrification pond 8 is connected by the feed-water end of pipeline with described secondary Aerobic Pond 9, the water side of described secondary Aerobic Pond 9 is connected by the water side of pipeline with described second-level settling pond 10, described two-stage precipitation, 10 bottom is provided with described second-level settling pond sludge pump 10a, and the exit end of described second-level settling pond sludge pump 10a is connected by the entrance end of pipeline with described secondary nitrification tank 7.
When sewage flows in the described secondary equalizing tank 2 through described methane-generating pit 1, sewage in the described secondary equalizing tank 2 pumps in the described one-level nitrification tank 3 through described secondary equalizing tank lift pump 2a, organic pollutant is degraded under aerobic condition, nitrifier is nitrate nitrogen with the mineralized nitrogen that exists in the sewage, and the power that simultaneously polyP bacteria utilization under anaerobic produces is excessively inhaled phosphorus.Sewage after described one-level nitrification tank 3 is processed in entering described one-level denitrification pond 4, the nitrate in the sewage, remaining dissolved oxygen carries out anti-nitration reaction under the effect of denitrifying bacteria, be nitrogen with nitrate transformation, has realized the preposition denitrogenation of system.Enter in the described one-level Aerobic Pond 5 through the sewage after 4 processing of described one-level denitrification pond, organic pollutant further is degraded, the sewage sludge mixed solution carries out mud-water separation at the one-level settling tank, part sludge reflux is in described one-level nitrification tank 3, the excess sludge that another part is rich in phosphorus is discharged from described one-level settling tank 6, realizes biological phosphate-eliminating.
Because ammonia nitrogen and phosphorus in the cultivation class sewage are all higher, one-level is aerobic-biological treatment of the oxygen-aerobic sewage treatment device of holding concurrently can't satisfy emission request, thus behind the one-level settling tank, set up secondary aerobic-oxygen-aerobic sewage treatment device of holding concurrently.Sewage in the one-level settling tank is carried out a biological disposal upon again, make water outlet satisfy emission request.
In the utility model, the outlet side of described methane-generating pit 1 is connected by the inlet end of pipeline with telling air water separator 15, the outlet side of described air water separator 15 is connected by the inlet end of pipeline with described thionizer 16, the outlet side of described thionizer 16 is connected by the inlet end of pipeline with described spark arrester 17 or methane utilization device, and the outlet side of described spark arrester 17 is connected with the inlet end of described methane utilization device by pipeline.
In the utility model, described methane utilization device is biogas electricity generation apparatus, methane cooker, biogas lamp or Marsh gas water heater.
In the utility model, described grating tank 14 is in order to remove larger foreign material and rubbish etc.
In the utility model, described solid-liquid separator 12 is for the separating substances such as solid manure in the sewage.
In the utility model, the effect of described acidification pool 11 is that sewage is advanced pre-treatment before the methane-generating pit, improves methane gas producing efficient.
The water side of described grating tank 14 is connected by the feed-water end of pipeline with described one-level equalizing tank 13, described one-level equalizing tank 13 bottoms are provided with described one-level equalizing tank sludge pump 13a, the water side of described one-level equalizing tank sludge pump 13a be connected solid-liquid separator 12 and connect, described solid-liquid separator 12 is connected with the feed-water end of described acidification pool 11, and the water side of described acidification pool 11 is connected by the feed-water end of pipeline with described anaerobic pond 1.
Described solid-liquid separator 12 is connected with described storage slag bath 19, and described storage slag bath 19 is connected with described mummification room 20, and described mummification room 20 connects described warehouse 21.
Claims (9)
1. efficient treatment system of breeding wastewater, it is characterized in that, comprising: methane-generating pit and one-level be aerobic-oxygen-aerobic sewage treatment device of holding concurrently, described one-level is aerobic-and the oxygen-aerobic sewage treatment device of holding concurrently comprises: the one-level nitrification tank, one-level denitrification pond, one-level Aerobic Pond and one-level settling tank, the water side of described methane-generating pit is connected by the feed-water end of pipeline with described one-level nitrification tank, the water side of described one-level nitrification tank is connected by the feed-water end of pipeline with described one-level denitrification pond, the water side in described one-level denitrification pond is connected by the feed-water end of pipeline with described one-level Aerobic Pond, and the water side of described one-level Aerobic Pond is connected by the feed-water end of pipeline with described one-level settling tank.
2. the efficient treatment system of breeding wastewater as claimed in claim 1 is characterized in that: also comprise secondary aerobic-oxygen-aerobic sewage treatment device of holding concurrently, described secondary is aerobic-oxygen-aerobic sewage treatment device of holding concurrently comprises; Secondary nitrification tank, secondary denitrification pond, secondary Aerobic Pond and second-level settling pond; The water side of described one-level settling tank is connected by the feed-water end of pipeline with described secondary nitrification tank, the water side of described secondary nitrification tank is connected by the feed-water end of pipeline with described secondary denitrification pond, the water side in described secondary denitrification pond is connected by the feed-water end of pipeline with described secondary Aerobic Pond, and the water side of described secondary Aerobic Pond is connected with the water side of described second-level settling pond by pipeline.
3. the efficient treatment system of breeding wastewater as claimed in claim 1, it is characterized in that: the bottom of described one-level settling tank is provided with one-level settling tank sludge pump, and the exit end of described one-level settling tank sludge pump is connected by the entrance end of pipeline with described one-level nitrification tank.
4. such as claim 1 or the efficient treatment system of 3 described breeding wastewaters, it is characterized in that: also comprise the one-level ventilation plant, the outlet side of described one-level ventilation plant by pipeline respectively with described one-level nitrification tank be connected the inlet end of one-level Aerobic Pond inside and be connected.
5. the efficient treatment system of breeding wastewater as claimed in claim 2 is characterized in that: be provided with described biological filtering material for waste water treatment in the described secondary nitrification tank; Described secondary denitrification is provided with biological filtering material for waste water treatment in the pond; Be provided with described biological filtering material for waste water treatment in the described secondary Aerobic Pond.
6. such as claim 2 or the efficient treatment system of 5 described breeding wastewaters, it is characterized in that: the bottom of described second-level settling pond is provided with the second-level settling pond sludge pump, and the exit end of described second-level settling pond sludge pump is connected by the entrance end of pipeline with described secondary nitrification tank.
7. such as claim 2 or the efficient treatment system of 7 described breeding wastewaters, it is characterized in that: also comprise the secondary ventilation plant, the outlet side of described secondary ventilation plant is connected by the inlet end of pipeline with described secondary nitrification tank inside; The outlet side of described secondary ventilation plant is connected by the inlet end of pipeline with described secondary Aerobic Pond inside.
8. such as the efficient treatment system of the described breeding wastewater of any one claim in the claim 1,2,3 and 5, it is characterized in that: also comprise solid-liquid separator, described solid-liquid separator is connected with described methane-generating pit feed-water end by pipeline.
9. the efficient treatment system of breeding wastewater as claimed in claim 8, it is characterized in that: also comprise the storage slag bath, described solid-liquid separator is connected with described storage slag bath.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544551 CN202849213U (en) | 2012-10-24 | 2012-10-24 | Farming wastewater efficient treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220544551 CN202849213U (en) | 2012-10-24 | 2012-10-24 | Farming wastewater efficient treatment system |
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| CN202849213U true CN202849213U (en) | 2013-04-03 |
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| CN 201220544551 Expired - Fee Related CN202849213U (en) | 2012-10-24 | 2012-10-24 | Farming wastewater efficient treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071951A (en) * | 2014-07-14 | 2014-10-01 | 东莞三泰环保渔业有限公司 | A fish pond breeding wastewater treatment process and its device |
| CN107188369A (en) * | 2017-06-22 | 2017-09-22 | 江苏金润环保工程有限公司 | A kind of novel all-in-one sewage disposal device |
| CN109081441A (en) * | 2018-09-04 | 2018-12-25 | 北京高能时代环境技术股份有限公司 | A kind of system and method for recovering waste water from aquatic culture in original place |
-
2012
- 2012-10-24 CN CN 201220544551 patent/CN202849213U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071951A (en) * | 2014-07-14 | 2014-10-01 | 东莞三泰环保渔业有限公司 | A fish pond breeding wastewater treatment process and its device |
| CN107188369A (en) * | 2017-06-22 | 2017-09-22 | 江苏金润环保工程有限公司 | A kind of novel all-in-one sewage disposal device |
| CN109081441A (en) * | 2018-09-04 | 2018-12-25 | 北京高能时代环境技术股份有限公司 | A kind of system and method for recovering waste water from aquatic culture in original place |
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