CN102992485B - Method for treating sewage by constructing artificial wetland with vetiver grass - Google Patents
Method for treating sewage by constructing artificial wetland with vetiver grass Download PDFInfo
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- CN102992485B CN102992485B CN201210298190.0A CN201210298190A CN102992485B CN 102992485 B CN102992485 B CN 102992485B CN 201210298190 A CN201210298190 A CN 201210298190A CN 102992485 B CN102992485 B CN 102992485B
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- wetland
- sewage
- bed
- caulis miscanthis
- miscanthis floriduli
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- 239000010865 sewage Substances 0.000 title claims abstract description 35
- 244000284012 Vetiveria zizanioides Species 0.000 title abstract description 6
- 235000007769 Vetiveria zizanioides Nutrition 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003245 coal Substances 0.000 claims abstract description 11
- 239000003818 cinder Substances 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 239000011449 brick Substances 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 7
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 4
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- 238000000034 method Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound 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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a method for treating sewage by constructing an artificial wetland with vetiver grass, comprising the following specific steps: a, growing seedlings; b, constructing a wetland; and c, guiding the sewage. The bed wall and the bottom of the wetland constructed by the method disclosed by the invention are waterproof structures for preventing the sewage from leaking to pollute the underground water. Gangue, brick bats, coal cinder and gravel are used on the wetland bed as compound matrix to fill the wetland; the compound matrix is capable of adsorbing, filtering and stopping suspended solids in the sewage; the vetiver grass is planted at the row spacing of 40 cm*40 cm, so that enough space is remained for the vetiver grass to tiller and grow; and the vetiver grass may not grow sparsely. After the artificial wetland is constructed by the method disclosed by the invention, the removal effect on SS (Suspended Solids), TN (Total Nitrogen), COD (Chemical Oxygen Diode) and BOD (Biological Oxygen Diode) in domestic sewage is good, and the quality of the yielding water is up to the national drainage standard.
Description
Technical field
The invention belongs to a kind of sewage water treatment method technical field, particularly a kind of method that builds Wastewater Treatment by Constructed Wetlands with Caulis Miscanthis floriduli.
Background technology
At present wastewater treatment in China present situation allows of no optimist, and some sanitary sewages, trade effluent be through existing sewage disposal device processing, exists that processing is not up to standard, cost is large, have the problems such as hidden danger.Some sewage-treating agents, although processed sewage, have polluted soil; With the waste water of microbiological treatment, because microbial mutation is fast, bring a lot of potential harm also to we mankind.Artificial wet land system water purification technology is as a kind of novel ecological method for cleaning treatment of sewage, both economic environmental protection, its ultimate principle is on Performance of Constructed Wetlands Substrates, to plant specific wetland plant, thereby set up a Constructed Wetland Ecology System, in the time that sewage passes through wet land system, pollution substance wherein and nutritive substance are absorbed by system or decompose, thereby reach the object of purification of water quality.But the method for existing Wastewater Treatment by Constructed Wetlands still has a lot of defects, as the file of patent No. ZL200610052475.0, a kind of artificial marsh sewage treating method is disclosed, it comprises that wetland comprises grating tank, vertical current constructed wetland, equalizing tank, porous iron dividing plate drowned flow artificial wet land and water collecting basin, but because it need to build multiple wetlands, pipe laying, welding iron dividing plate, cost is high, the porous iron dividing plate in matrix in addition, and easily in sewage, corrosion is rotted.Therefore, research and develop a kind of method of effectively disposing of sewage, very urgent.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of method that builds Wastewater Treatment by Constructed Wetlands with Caulis Miscanthis floriduli.
A method that builds Wastewater Treatment by Constructed Wetlands with Caulis Miscanthis floriduli, concrete steps are as follows:
A, grow seedlings: First Year is cultivated Caulis Miscanthis floriduli seedling in nursery;
B, build wetland: the wetland bed body that excavating depth is 1.5m～2.5m, the brick structure that bed wall is finishing cement, bottom is concrete structure, wetland bed upper with coal gangue, queen closer, cinder, sandy soil, gravel does composite interstitial substance and fills wetland, queen closer, coal gangue, particle diameter is 2cm～5cm, grain size of gravel is 1cm～3cm, five kinds of matrix mass ratios are respectively 1:1:1:1:1, spread successively from the bottom up queen closer, coal gangue, gravel, cinder, sandy soil, the height of composite interstitial substance is 1m, plant Caulis Miscanthis floriduli with distance between rows and hills 40cm × 40cm kind, while kind, note watering, guarantee that seedling survives, after 1 month, draw water purification and enter wetland, depth of water submergence Caulis Miscanthis floriduli root 3cm～15cm,
C, draw sewage: after drawing water purification to enter wetland 1～2 month, to draw sanitary sewage and enter wetland, the residence time of sewage in artificial swamp is 2～5 days, draws afterwards.
The available depth of described artificial swamp is 0.8m～1.2m.
Caulis Miscanthis floriduli (Vetiveria zizanioides) is described as " grass of mystery ", it is a kind of amphiphyte of high-biomass, the environment-stress such as acid, alkali, salt, heavy metal, eutrophication, waterflooding are had to stronger patience, are the plants that a kind of desirable can be used for builds artificial swamp.The be widely used processing of the sewage such as sanitary sewage, work waste water and percolate of Caulis Miscanthis floriduli, based on its following attribute: than the higher evapotranspiration speed of most of wetland plants; Especially a large amount of ammonia, total nitrogen and total phosphorus and fast uptake rate; Caulis Miscanthis floriduli is sterile, thereby does not form species invasion; Divide high patience to soil acidity, alkalescence, salinity and sodium; To water logging, the high patience of soaking; Can tolerate high-concentration garbage percolate.Bed wall and the bottom of the wetland that the present invention builds are waterproof construction, to prevent effluent seepage polluted underground water.Described wetland bed going up with coal gangue, queen closer, cinder, sandy soil, gravel done composite interstitial substance filling wetland, and composite interstitial substance can better adsorb, filter, hold back the suspended substance in sewage; Described queen closer, coal gangue, particle diameter will be at 2cm～5cm, grain size of gravel will be at 1cm～3cm, five kinds of matrix ratios are respectively 1:1:1:1:1, spread successively from the bottom up queen closer, coal gangue, gravel, cinder, sandy soil, convenient-laying like this, reduces workload, is also beneficial to surviving of Caulis Miscanthis floriduli; Plant Caulis Miscanthis floriduli with distance between rows and hills 40cm × 40cm kind, stop enough spaces to Caulis Miscanthis floriduli self growth of tillering, also can not allow Caulis Miscanthis floriduli grow rare; After 1 month, Caulis Miscanthis floriduli root system has grown to 80cm～200cm, draws water purification and enters wetland, and depth of water submergence Caulis Miscanthis floriduli root 3cm～15cm, allows Caulis Miscanthis floriduli adapt to water surrounding in advance, is unlikely to introduce suddenly high-concentration sewage and makes Caulis Miscanthis floriduli inadaptable; After drawing water purification to enter wetland 1～2 month, draw sanitary sewage and enter wetland, the residence time of sewage in artificial swamp is 2～5 days, draw afterwards, reason is: water treatment effect is relevant with hydraulic detention time length, and the time, more long process effect was better, therefore, if in the time that concentration of wastewater is excessive, should extend hydraulic detention time.After the artificial swamp building by the present invention, the SS(suspended substance in sanitary sewage), TN (total nitrogen), COD(chemical oxygen demand (COD)) and BOD(biochemical oxygen demand (BOD)) removal effect very good, effluent quality reaches discharging standards.
Embodiment
A kind of with Caulis Miscanthis floriduli structure Sewage treatment in constructed wetland, concrete steps are as follows:
1, grow seedlings: First Year is cultivated Caulis Miscanthis floriduli seedling in nursery;
2, build wetland: build surface current artificial wetland, for example population 250-300 people's village, it is of a size of 25m × 6.5m × 2m, wetland bed bed wall and bottom are waterproof construction, to prevent effluent seepage polluted underground water, bed wall adopts the brick structure of finishing cement, bottom can adopt mixed clay structure, wetland bottom spreads queen closer successively, coal gangue, gravel, cinder, sandy soil do composite interstitial substance, matrix packing height is 1m, then plant with distance between rows and hills 40cm × 40cm kind the Caulis Miscanthis floriduli that First Year cultivates, while kind, note watering, guarantee that seedling survives, after 3 months, Caulis Miscanthis floriduli has grown to 1 m～1.8m, draw water purification and enter wetland, depth of water submergence Caulis Miscanthis floriduli root 10cm,
3, draw sewage: after drawing water purification to enter wetland 1 month, draw sanitary sewage from one end and enter wetland, available depth 0.8-1.5m, hydraulic retention 3 days, then from the other end draining;
Get respectively and enter the sanitary sewage of wetland and the water that hydraulic retention is discharged for 3 days afterwards, carry out water quality monitoring (WQM).Numerical value sees the following form: (mg/L of unit)
| Composition | Grease | Muriate | Total phosphorus | Total nitrogen | COD | BOD | Suspended substance | Fe | Cu | PH |
| Before processing | 147 | 189 | 14.1 | 79.6 | 960 | 382 | 341 | 2.49 | 0.11 | 7.9 |
| After processing | 7.3 | 26.1 | 2.6 | 9.5 | 57.6 | 30.5 | 6.8 | 0.11 | 0.03 | 7.1 |
In sanitary sewage, the clearance of each material, all more than 70%, makes pH value also be improved simultaneously.Build artificial swamp with Caulis Miscanthis floriduli, utilize the effectively processing sanitary sewage of absorption Degradation energy of Caulis Miscanthis floriduli, have drop into little, effective, afforest and beautify, safeguard simple advantage, there are the good ecological value, economic worth and social value, be adapted at town region, particularly in the sewage treatment process in rural area, apply.
Claims (1)
1. a method that builds Wastewater Treatment by Constructed Wetlands with Caulis Miscanthis floriduli, is characterized in that, its step is as follows:
A, grow seedlings: First Year is cultivated Caulis Miscanthis floriduli seedling in nursery;
B, build wetland: excavate wetland bed body, the degree of depth will be at 1.5m～2.5m, the brick structure that bed wall is finishing cement, bottom is concrete structure, wetland bed upper with coal gangue, queen closer, cinder, sandy soil, gravel does composite interstitial substance and fills wetland, queen closer, coal gangue particle diameter is 2cm～5cm, grain size of gravel is 1cm～3cm, five kinds of matrix mass ratios are respectively 1:1:1:1:1, spread successively from the bottom up queen closer, coal gangue, gravel, cinder, sandy soil, the height of composite interstitial substance is 1m, plant Caulis Miscanthis floriduli with distance between rows and hills 40cm × 40cm kind, while kind, note watering, guarantee that seedling survives, after 1 month, draw water purification and enter wetland, depth of water submergence Caulis Miscanthis floriduli root 3cm～15cm,
C, draw sewage: after drawing water purification to enter wetland 1～2 month, draw sanitary sewage and enter wetland, sewage deep is 0.8m～1.5m, the residence time of sewage in artificial swamp is 2～5 days, draws afterwards.
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| CN103803709B (en) * | 2014-02-18 | 2015-04-15 | 杨洁 | Vetiver grass sewage purifying system and method thereof |
| CN106630171A (en) * | 2017-02-03 | 2017-05-10 | 广州市香根草业科技有限公司 | Ecological compound microcirculating sewage treatment method |
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