CN104003526B - A kind of artificial wet land system removing heavy metal in livestock breeding wastewater - Google Patents
A kind of artificial wet land system removing heavy metal in livestock breeding wastewater Download PDFInfo
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- CN104003526B CN104003526B CN201410267948.3A CN201410267948A CN104003526B CN 104003526 B CN104003526 B CN 104003526B CN 201410267948 A CN201410267948 A CN 201410267948A CN 104003526 B CN104003526 B CN 104003526B
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- packing layer
- filled column
- breeding wastewater
- livestock breeding
- heavy metal
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- 239000002351 wastewater Substances 0.000 title claims abstract description 28
- 244000144972 livestock Species 0.000 title claims abstract description 18
- 238000009395 breeding Methods 0.000 title claims abstract description 16
- 230000001488 breeding effect Effects 0.000 title claims abstract description 16
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910021536 Zeolite Inorganic materials 0.000 claims description 15
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 15
- 239000010457 zeolite Substances 0.000 claims description 15
- 235000007164 Oryza sativa Nutrition 0.000 claims description 14
- 235000009566 rice Nutrition 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 241000209094 Oryza Species 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 235000003642 hunger Nutrition 0.000 description 3
- 239000010903 husk Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000037351 starvation Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of artificial wet land system removing heavy metal in livestock breeding wastewater, belong to livestock culture industry technical field of waste water processing.The present invention, by first being mixed at distribution reservoir by livestock breeding wastewater, then evenly enters into the filled column with packing layer by water inlet pipe, hydraulic detention time 2h; Treat that the absorption of Performance of Constructed Wetlands Substrates post is saturated, after losing treatment effect, change filled column in time.The present invention effectively can remove the heavy metal Cd in livestock culture waste water
2+, Cr
6+, Cu
2+, Mn
2+, simple to operate, not consumption of power, saves operation and maintenance cost greatly, and whole artificial marsh sewage treatment system can the operation of efficient stable more; Little being convenient to of floor space is moved, and is more suitable for the developed regions of shortage of land resource; The livestock breeding wastewater processed directly can discharge or carry out second stage employ.
Description
Technical field
The invention belongs to livestock culture industry technical field of waste water processing, what be specifically related to is that one can efficiently remove livestock breeding wastewater heavy metal Cd
2+, Cr
6+, Cu
2+, Mn
2+technology.
Background technology
Livestock and poultry breeding industry is a large leading industry of China's agricultural, and the quantity discharged of annual waste water is more than 10,000,000,000 tons.Livestock breeding wastewater is the organic waste water of a class high density, containing multiple pollutant, has become the one of the main reasons causing China's widespread pollution from the overuse of fertilizers and pesticides in rural area.Especially, because the extensive interpolation of heavy metal in animal-feed causes in waste water containing various heavy Cd
2+, Cr
6+, Cu
2+, Mn
2+deng, although total concentration is lower, larger to the potential hazard of environmental organism and human health.Therefore, in breeding wastewater, the removal of heavy metal has become the task of top priority of cultivation wastewater purification.
Artificial wet land system as the successive depths processing unit of sewage purification, its Fillers selection and ingredients technical most important.Both at home and abroad about the report of Wastewater Treatment by Constructed Wetlands method is a lot, as disclosed patent " a kind of sewage water treatment method based on facultative biochemistry-strengthened artificial wet land " (CN101979348A), this technology increases facultative biochemistry device on the basis of artificial swamp, not only increase investment and expend, and floor space is large; Disclosed patent " a kind of method and artificial swamp structure of sewage being carried out to advanced treatment " (CN102249496A), this technology adds other process structure, the structure of artificial swamp is arranged, although its entirety can improve treatment effect, but structure is comparatively complicated, floor space is comparatively large, is not suitable for the developed regions that soil is in short supply.Also have a lot of report about Performance of Constructed Wetlands Substrates technology in addition, but general floor space is large, is not easy to dismounting and moves.Because the proterties difference of different industries waste water is comparatively large, and same filler is also different to the removal effect of different pollutent, not yet has the wetland distribution for heavy metals removal in livestock breeding wastewater and systematic account at present.
Summary of the invention
The object of the present invention is to provide a kind of artificial wet land system removing heavy metal in livestock breeding wastewater, to make system reach detachable, change filler convenient, be convenient to mobile transport, be more suitable for the application scenario of artificial swamp batching.
In order to solve above technical problem, concrete technical scheme of the present invention is as follows:
A kind of artificial wet land system removing heavy metal in livestock breeding wastewater, it is characterized in that: comprise upper end open and bottom position is provided with the filled column (5) of water outlet B, lower position be provided with water outlet A distribution reservoir (1), be placed in the packing layer of filled column (5) inner bottom part, be positioned at the outlet valve (4) of filled column (5) lower portion;
One end of described water pipe connects water outlet A, and the other end is positioned at the ingress of filled column (5) upper end, is detachable between filled column (5) and water water pipe; Water pipe is provided with under meter (2) in one end close with water outlet A, is provided with water intaking valve (3) in one end close with filled column (5) ingress, upper end.
Described packing layer comprises packing layer A (5-1), packing layer B (5-2) and packing layer C (5-3) from top to bottom; The material of described packing layer A (5-1), packing layer B (5-2) and packing layer C (5-3) is respectively natural zeolite, rice hull carbon, natural zeolite, and volume ratio is respectively 1:2:1.
the present invention has beneficial effect.Packing layer is placed in filled column by present system, after packing layer no longer has adsorption, by directly changing the filled column that new packing layer is housed.When preparing burden for artificial swamp, can realize removable, and be convenient to install, pore texture is flourishing, pile close degree and water permeability good, and use packing specific area large, high adsorption capacity, Stability Analysis of Structures, improves effective process volume of system sewage, the treatment effect of sewage is better, particularly heavy metal ion Cd
2+, Cr
6+, Cu
2+, Mn
2+there is good adsorption effect.In addition, this system operation is simple, and system is detachable, changes filler convenient, and floor space is little to be convenient to mobile, and not consumption of power, saves operation and maintenance cost greatly, makes the operation of whole artificial marsh sewage treatment system efficient stable more.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. distribution reservoir, 2. under meter, 3. water intaking valve, 4. outlet valve, 5. filled column, 5-1. packing layer A, 5-2. packing layer B, 5-3. packing layer C.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Prepare burden as example for artificial swamp.
Specific works process of the present invention is as follows:
Livestock breeding wastewater A is first mixed in distribution reservoir 1; Evenly entered into the packing layer of filled column 5 again by water intaking valve 3, stop to packing layer adsorption equilibrium; Again after fully purifying, open outlet valve 4, discharge.
The packing layer A, the packing layer B that adopt and packing layer C are respectively 10cm natural zeolite, 20cm rice hull carbon and 10cm natural zeolite, and cost is low, easily obtain.The average specific surface area of natural zeolite is 240m
2/ g.Natural zeolite is the moisture aluminosilicate mineral of a kind of rack-like structure, and its crystals exists the hole and passage that a large amount of arrangement is orderly, size is identical, mutually through, and having good absorption property, is good sorbent material.
embodiment one
Certain animal farm wastewater, pH8.9, measures Cd through atomic absorption spectrophotometer
2+, Cr
6+, Cu
2+and Mn
2+concentration be respectively 4.6mg/L, 5.1mg/L, 4.1mg/L and 6.4mg/L.Experiment is at room temperature carried out.First be injected into by livestock breeding wastewater in distribution reservoir 1, the water intaking valve 3 then by opening evenly enters into the packing layer of right cylinder filled column 5 inside, and packing layer is respectively 10cm natural zeolite, 20cm rice hull carbon, 10cm natural zeolite from bottom to up; Hydraulic load is 0.0723m/h, hydraulic detention time 2h, the Cd after testing of the waste water after process
2+, Cr
6+, Cu
2+, Mn
2+clearance be respectively 89.6%, 86.5%, 83.2% and 76.8%.
Filled column sets out the mouth of a river apart from 5cm place, bottom, above right cylinder filled column packing layer, arrange water inlet pipe; Packing layer is planting plants not.Filled column is that synthetic glass is made, internal diameter 21cm, high 65cm.
Rice husk is prepared into rice hull carbon under starvation after 300 DEG C of burnings, and rice hull carbon specific surface area is 148m
2/ g; Natural zeolite particle diameter 0.5mm.
embodiment two
Certain marsh gas power generation factory natural pond liquid waste water, pH8.0, measures Cd through atomic absorption spectrophotometer
2+, Cr
6+, Cu
2+concentration is respectively 1.9,4.8,1.5mg/L, Mn
2+do not detect.Experiment is at room temperature carried out, and is first injected in distribution reservoir by waste water, then evenly enters into filled column packing layer as shown in Figure 1 by water intaking valve 3.Hydraulic load is 0.0723m/h, hydraulic detention time 2h.Waste water after process Cd after testing
2+, Cr
6+, Cu
2+clearance be respectively 85.6%, 91.8% and 76.1%.
Filled column sets out the mouth of a river apart from 5cm place, bottom, above right cylinder filled column packing layer, arrange water inlet pipe; Packing layer is planting plants not.Filled column is that synthetic glass is made, internal diameter 21cm, high 65cm.
Rice husk is prepared into rice hull carbon after 450 DEG C of burnings under starvation, and rice hull carbon specific surface area is 390m
2/ g; Natural zeolite particle diameter 10.0mm, specific surface area 240m
2/ g.
After the packing layer absorption in filled column is saturated, change the filled column that new packing layer is housed.
embodiment three
Certain animal farm wastewater, pH9.0, measures Cd through atomic absorption spectrophotometer
2+, Cr
6+, Cu
2+and Mn
2+concentration be respectively 5.2mg/L, 4.3mg/L, 4.6mg/L and 8.2mg/L.Experiment is at room temperature carried out.First be injected into by livestock breeding wastewater in distribution reservoir 1, the water intaking valve 3 then by opening evenly enters into the packing layer of right cylinder filled column 5 inside, and packing layer is respectively 10cm natural zeolite, 20cm rice hull carbon, 10cm natural zeolite from bottom to up; Hydraulic load is 0.0723m/h, hydraulic detention time 2h, the Cd after testing of the waste water after process
2+, Cr
6+, Cu
2+, Mn
2+clearance be respectively 97.4%, 95.2%, 85.5% and 88.7%.
Filled column sets out the mouth of a river apart from 5cm place, bottom, above right cylinder filled column packing layer, arrange water inlet pipe; Packing layer is planting plants not.Filled column is that synthetic glass is made, internal diameter 21cm, high 65cm.
Rice husk is prepared into rice hull carbon under starvation after 450 DEG C of burnings, and rice hull carbon specific surface area is 390m
2/ g; Natural zeolite particle diameter 5mm.
After the packing layer absorption in filled column is saturated, change the filled column 5 that new packing layer is housed.
Claims (1)
1. remove the artificial wet land system of heavy metal in livestock breeding wastewater for one kind, it is characterized in that: comprise upper end open and bottom position is provided with the filled column (5) of water outlet B, lower position be provided with water outlet A distribution reservoir (1), be placed in the packing layer of filled column (5) inner bottom part, be positioned at the outlet valve (4) of filled column (5) lower portion;
One end of described water pipe connects water outlet A, and the other end is positioned at the ingress of filled column (5) upper end, is detachable between filled column (5) and water pipe; Water pipe is provided with under meter (2) in one end close with water outlet A, is provided with water intaking valve (3) in one end close with filled column (5) ingress, upper end;
Described packing layer comprises packing layer A (5-1), packing layer B (5-2) and packing layer C (5-3) from top to bottom; The material of described packing layer A (5-1), packing layer B (5-2) and packing layer C (5-3) is respectively natural zeolite, rice hull carbon, natural zeolite, and volume ratio is respectively 1:2:1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410267948.3A CN104003526B (en) | 2014-06-17 | 2014-06-17 | A kind of artificial wet land system removing heavy metal in livestock breeding wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410267948.3A CN104003526B (en) | 2014-06-17 | 2014-06-17 | A kind of artificial wet land system removing heavy metal in livestock breeding wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN104003526A CN104003526A (en) | 2014-08-27 |
| CN104003526B true CN104003526B (en) | 2015-12-16 |
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| CN201410267948.3A Expired - Fee Related CN104003526B (en) | 2014-06-17 | 2014-06-17 | A kind of artificial wet land system removing heavy metal in livestock breeding wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859050A (en) * | 2016-06-06 | 2016-08-17 | 东南大学 | Artificial wetland system with miniature water collection pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060108804A (en) * | 2005-04-14 | 2006-10-18 | 창원대학교 산학협력단 | Sewage treatment system made by artificial reediness |
| CN101397178A (en) * | 2008-08-14 | 2009-04-01 | 中国地质大学（武汉） | Livestock and poultry raising sewage disposal process and disposal system thereof |
| CN102267762A (en) * | 2011-07-12 | 2011-12-07 | 天津城市建设学院 | Intermittent water seepage type salt-alkali resistant plant-soil ecological filter bed |
| CN102485662A (en) * | 2010-12-03 | 2012-06-06 | 中国农业科学院农业资源与农业区划研究所 | Wastewater processing substrate, water body processing apparatus and wastewater processing method, and application thereof |
| CN203946954U (en) * | 2014-06-17 | 2014-11-19 | 南京林业大学 | A kind of artificial wet land system of removing heavy metal in livestock breeding wastewater |
-
2014
- 2014-06-17 CN CN201410267948.3A patent/CN104003526B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060108804A (en) * | 2005-04-14 | 2006-10-18 | 창원대학교 산학협력단 | Sewage treatment system made by artificial reediness |
| CN101397178A (en) * | 2008-08-14 | 2009-04-01 | 中国地质大学（武汉） | Livestock and poultry raising sewage disposal process and disposal system thereof |
| CN102485662A (en) * | 2010-12-03 | 2012-06-06 | 中国农业科学院农业资源与农业区划研究所 | Wastewater processing substrate, water body processing apparatus and wastewater processing method, and application thereof |
| CN102267762A (en) * | 2011-07-12 | 2011-12-07 | 天津城市建设学院 | Intermittent water seepage type salt-alkali resistant plant-soil ecological filter bed |
| CN203946954U (en) * | 2014-06-17 | 2014-11-19 | 南京林业大学 | A kind of artificial wet land system of removing heavy metal in livestock breeding wastewater |
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| CN104003526A (en) | 2014-08-27 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20140827 Assignee: Shanghai Hui Peng Environmental Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000153 Denomination of invention: Artificial wetland system capable of removing heavy metal in livestock and poultry breeding wastewater Granted publication date: 20151216 License type: Common License Record date: 20180906 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20140827 Assignee: Jiangsu Keyida Environmental Protection Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000156 Denomination of invention: Artificial wetland system capable of removing heavy metal in livestock and poultry breeding wastewater Granted publication date: 20151216 License type: Common License Record date: 20180907 |
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Effective date of registration: 20181206 Address after: 211706 No. 58 Residential Road, Laozishan Town, Hongze District, Huaian City, Jiangsu Province Patentee after: Hongze Forest Farm, Huaian City Address before: No. 159, dragon pan Road, Nanjing, Jiangsu Patentee before: Nanjing Forestry University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190617 |