CN104386821A - Application of clerodendranthus spicatus to treatment of rural domestic wastewater in combined system - Google Patents
Application of clerodendranthus spicatus to treatment of rural domestic wastewater in combined system Download PDFInfo
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- CN104386821A CN104386821A CN201410636582.2A CN201410636582A CN104386821A CN 104386821 A CN104386821 A CN 104386821A CN 201410636582 A CN201410636582 A CN 201410636582A CN 104386821 A CN104386821 A CN 104386821A
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- Prior art keywords
- wet land
- matrix
- mixed
- land system
- combined system
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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 an application of clerodendranthus spicatus to treatment of rural domestic wastewater in a combined system, belonging to the field of wastewater treatment. The problem of pollution caused by the rural domestic wastewater in a combined system is permanently solved by planting clerodendranthus spicatus in the rural domestic wastewater in a combined system and fully utilizing the characteristics that clerodendranthus spicatus absorbs the pollutants in the rural domestic wastewater in a combined system, such as NH4<+>-N, TN, TP and CODcr, and is perennial. The beneficial effects of the invention are as follows: the investment is small, the operating cost is low, the effects are good and the operation is simple and easy to carry out; harvested clerodendranthus spicatus can be also used as a medicine, and the whole herb of clerodendranthus spicatus is used as a medicine to clear heat and remove dampness and remove urinary calculus to induce diuresis; clerodendranthus spicatus is used for treating acute nephritis, cystitis, urinary calculus and rheumatic arthritis; environmental protection and economic construction are combined by treating the wastewater by utilizing clerodendranthus spicatus, so that the operation mode that the traditional ecological engineering depends on the government to invest capital over the years is expected to be changed; therefore clerodendranthus spicatus has profound significance.
Description
Technical field
The present invention relates to combined system sanitary sewage disposal field, rural area, particularly the application of a kind of constructed wetland plant purification rural area combined system sanitary sewage.
Background technology
Along with China's agricultural is fast-developing, life in the countryside level significantly improves, and rural area stain disease quantity discharged also significantly increases.According to data, within 2007, China's country sewage total emission volumn is more than 9,000,000,000 tons, and actual treatment rate is still not as good as 1%.In addition, rural area is with a varied topography, scattered distribution, is difficult to centralized collection process as town sewage.The random discharge of rural area stain disease causes the contaminated one of the main reasons of water surrounding such as rivers, lake, underground water.Rural pollution problem is also increasingly serious, and rural environmental pollution has become one of principal element of restriction China new countryside construction.Therefore, administer country sewage, improving life in the countryside environment is one of control and the committed step slowing down basin water body pollution and eutrophication.
Traditional wastewater treatment technology treatment effect is good, be widely used, but build and running cost costly, run complexity; People in the countryside culture is relatively low, is difficult to operation with traditional Sewage treatment systems, and the domestic sewage in rural areas amount of having is few, feature such as dispersion discharge etc., therefore traditional wastewater treatment technology be not suitable for the process of domestic sewage in rural areas.Therefore, find " three the is low " technology being applicable to Rural areas sanitary sewage disposal and seem particularly urgent.Artificial Wetland Techniques has advantages such as adapting to scaleable, construction cost is cheap, maintenance cost is low, is particularly suitable for enriching in land resources, and fund and professional technician lack, the vast Rural areas of sewage discharge dispersion.Up to the present, there are the plants such as reed, Caulis Miscanthis floriduli, paddy rice, Rhizome of Grass leaf Sweelflag, Herba Eichhorniae, parasol grass, Rush, swamp cabbage, Wildcelery Herb, Canna generalis Bailey for the plant in artificial swamp, all achieve good experiment effect.But existing wetland plant mostly is common plant, and economic worth is lower, be difficult to the economic benefit embodying wetland technology; Meanwhile, existing constructed wetland plant mostly is yearly plant, and the plant after death enters water body, easily causes secondary pollution, affects the decontamination effect improving of wet land system.Also need after wetland plant death again to change, virtually can increase the running cost of wetland technology, the market competitiveness of wetland technology can be reduced further.And, rural area combined system sanitary sewage and city domestic sewage component difference larger, existing wetland plant might not be adapted to the purification of rural area combined system sanitary sewage, and the wetland plant therefore filtering out the high economic worth being adapted to rural area combined system sanitary sewage is significant.
Summary of the invention
The object of the invention is to: for problems such as above-mentioned existing wetland plant economic worth are low, annual, provide a kind of economic worth higher perennial and can be used for purifying the new plant resource of rural area combined system sanitary sewage.The plant purification rural area combined system sanitary sewage utilizing economic worth higher; environment protection is combined with landscape construction; embody the idea of sustainable development that sewage disposal, restoration of the ecosystem and landscape construction are taken into account mutually with economic benefit; have the advantages that theoretical investigation combines with applied research, this provides novel thinking and theoretical foundation for countryside sewage treating practical application.This changes being expected to the operating mode that Traditional Ecological engineering month after month relies on governmental input fund throughout the year, has far reaching significance.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
In artificial swamp, plant kidney tea, utilize and build wet land system purification rural area combined system sanitary sewage.
Kidney tea (Clerodendranthus spicatus): tubiform floret order kidney Camellia perennial herb.Stems erect, 1-1.5 meters high, four prism shape, shallow groove and pinstripe, backward pubescent.Leaf is avette, water chestnut shape is avette or ovum shape Long Circle, long (1.2) 2-5.5 centimetre, wide (0.8) 1.3-3.5 centimetre, the anxious point of tip, the wide wedge shape of base portion is to cutting shape wedge shape, edge tool coarse thread tooth or thin knuckle-tooth, the little prominent point of increment tool, papery, above olive green, greyish-green below, two sides is all by pubescence and distribution depression gland point, thinner by hair above, lateral vein 4-5 couple, oblique rising, two sides shows slightly outstanding; Long (3) the 5-15 millimeter of petiole, the flat back of the body of abdomen is convex, by pubescence.。
Kidney tea pharmaceutical use: all herbal medicine, antipyreticly dries, row Shi Lishui.Control acute nephritis, urocystitis, lithangiuria, rheumatic arthritis.
Contriver finds in experiment journeys a large amount of for a long time, kidney tea as a kind of novel constructed wetland plant, can effectively can reduce the pollutents such as the ammonia nitrogen (NH4+-N) in the combined system sanitary sewage of rural area, total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) (CODcr).Based on above-mentioned discovery, kidney tea is planted the process being used for rural area combined system sanitary sewage in artificial swamp.Being implanted with the wet land system influent waste water of kidney tea and effluent quality carries out monitoring analysis by regular to planting, fully confirming that kidney tea is to the ammonia nitrogen (NH in waste water
4 +-N), total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) (COD
cr) etc. there is higher detergent power, can be used for the purifying treatment of rural area combined system sanitary sewage.And kidney tea vitality is very vigorous, easily survives, extremely low temperature resistant, and be perennial root herbaceous plant, do not need annual plantation, in whole process of growth, do not need special management.
In sum, the invention has the beneficial effects as follows:
1, through long-term great many of experiments, the present invention finds that kidney tea is to the ammonia nitrogen (NH in the combined system sanitary sewage of rural area
4 +-N), total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) (COD
cr) etc. pollution substance there is significant decontamination effect improving.Therefore, by it by Artificial Wetland Techniques purification rural area combined system sanitary sewage, the NH in absorption and accumulation waste water
4 +-N, TN, TP, COD
crdeng pollution substance, thus reduce the NH in waste water
4 +-N, TN, TP, COD
crdeng pollution substance content; When it grows to certain biomass, by hand harvest, just NH in waste water can be reduced
4 +-N, TN, TP, COD
crdeng pollutant load, realize the object of purifying liquid waste.
2, due to the physiological property of kidney tea itself, be perennial plant, do not need annual plantation, do not need to carry out special management in whole process of growth, thus running cost is low, effective, and operation is simple.Meanwhile, also enrich Artificial Wetland Techniques plant storehouse, for the deep development of Artificial Wetland Techniques process eutrophication water brings new progress and development space.
3, through periodical reaping, can realize NH in waste water
4 +-N, TN, TP, COD
crdeng the purification of pollutent, prevent its dry branches and fallen leaves from falling in water and form secondary pollution.The kidney tea of harvesting is antipyretic to dry, row Shi Lishui.Control acute nephritis, urocystitis, lithangiuria, rheumatic arthritis.
4, kidney tea not only has better purifying of the hypertrophic water system effect, and has higher pharmaceutical use.Compared with prior art, no matter the present invention is at running cost, Operation and Maintenance, treatment effect, or environmental benefit, economic benefit etc. all have obvious advantage.
Accompanying drawing explanation
Fig. 1 is NH in the combined system sanitary sewage of embodiment 1 kidney tea process rural area
4 +-N effect schematic diagram.
Fig. 2 is TN effect schematic diagram in the combined system sanitary sewage of embodiment 1 kidney tea process rural area.
Fig. 3 is TP effect schematic diagram in the combined system sanitary sewage of embodiment 1 kidney tea process rural area.
Fig. 4 is COD in the combined system sanitary sewage of embodiment 1 kidney tea process rural area
creffect schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Specific embodiment described herein only in order to explain the present invention, is not limited to the present invention.
Embodiment 1
The present embodiment is the application of kidney tea process rural area combined system sanitary sewage, and embody rule way is as follows:
1, rural area combined system sanitary sewage pre-treatment
Containing materials such as a large amount of degradable granule material, silts in the combined system sanitary sewage of rural area, if directly enter artificial wet land system, easily block wet land system, cause the inner anoxic of wet land system, affect the detergent power of wet land system.For reducing the ponding of particulate matter in waste water, first through sedimentation and filtration treatment before waste water enters wet land system, remove the silt in waste water and floating large particulate matter.
For guaranteeing Wastewater Pretreatment effect, requiring that waste water enters the settling bowl residence time is 3 hours, and grid space is 0.5-1cm.
2, the structure of artificial wet land system
Wet land system is of a size of 120cm × 50cm × 90cm(L × W × H), lay mixed-matrix 1, mixed-matrix 2, mixed-matrix 3 successively from the bottom up in wetland, on the right side of wet land system, be provided with water leg and water outlet.The feature of described artificial wet land system is: mixed-matrix and the oscillation of screening are filled in wet land system inside, are automatically supported wet land system inside by the hole of oscillation.
Wet land system Wetland Substrate is built to the detergent power of nitrogen phosphorus in sewage for improving, the mixed-matrix 1 that in wet land system, wadding warp filters out, mixed-matrix 2 and mixed-matrix 3, each matrix is specifically composed as follows: mixed-matrix 1---gravel: useless masonry=1:2, mixed-matrix 2---shale: vermiculite=1:1, mixed-matrix 3---sandy soil: useless masonry=3:1.
In order to improve the Oxygen supplied level building wet land system inside, thus improve the detergent power of wet land system, above-mentioned wet land system mesostroma particle diameter, filling thickness all carried out artificial screening.It is 5 ~ 10mm mixed-matrix 2 and 25-30cm is thick, particle diameter is 1 ~ 5mm mixed-matrix 3 that Wetland Substrate particle diameter and filling thickness shaker test show to fill in wetland 15-20cm is thick, particle diameter is 20 ~ 30mm the thick particle diameter of mixed-matrix 1,30-35cm.
In order to improve the Oxygen supplied level building wet land system inside further, thus improve the detergent power of wet land system, in above-mentioned wet land system, the oscillation filling number of plies carried out artificial screening, when the selection result shows all to lay one deck oscillation bottom mixed-matrix 1 and mixed-matrix 2 in above-mentioned wet land system, wet land system decontamination effect improving is best.
In order to improve the detergent power of wet land system of the present invention further, this wetland water purification mode adopts undercurrent type to intake, and waste water enters from left side, enters right side water leg, and get rid of through water port after wet land system process; Further, carry out compartment water inlet during water inlet, each flooding time is 6d, then stops water inlet 1d.Utilize the period of not intaking to supplement the inner oxygen level of wet land system further, thus improve the inner oxygen delivery capacity automatically of wet land system.
3, rural area combined system sanitary sewage disposal example
Waste water dam started from September 26th, 2014, terminated on October 31st, 2014, was a treatment cycle with 7 days, co-processing 5 time-of-week.
Before carrying out wastewater treatment, first in its natural state, the kidney tea collected directly is planted in the topsoil of wetland, stablizes 14 days with tap water.After plant to be planted is stable, from water distributor water inlet process rural area combined system sanitary sewage.
Utilize in the combined system sanitary sewage process of artificial wetland treatment rural area by measuring different flooding quantity, optimal water power standing time constructed wetlands system to NH in waste water
4 +-N, TN, TP, COD
crdeng the decontamination effect improving of pollutent, to determine best flooding quantity and the optimal water power standing time of this experiment.
According to measuring result, the optimal water power standing time of kidney tea artificial wet land system process rural area combined system sanitary sewage is 6d, and best flooding quantity is by following formulae discovery:
Q=Fqt/0.0365
In formula:
Q---waste water design discharge, m
3/ d;
The land area that F---artificial swamp takies, hm
2;
Q---hydraulic load, mm/d, in this test, q gets 100mm/d
T---waterpower working time, d.
0.0365---reduction factor.
As calculated, the best flooding quantity of this system is 0.98m
3, therefore water inlet flow velocity is 0.11cm
3/ s.For improving the automatic support capacity of wet land system further, in test, adopt intermittent loading mode.System 8 a.m. is intake, and each flooding time is 6d, then stops water inlet 1d.Namely each run cycle is 7d, and wherein the sewage residence time is in the reactor draining after 6d, 6d, and ensuing 1d reactor enters and stops the not stage.
At whole duration of test, NH during kidney tea purification rural area combined system sanitary sewage
4 +-N, TN, TP, COD
crdeng the water inlet of pollution substance, aqueous concentration and clearance see accompanying drawing 1 ~ 4.As seen from the figure, kidney tea is to NH in waste water
4 +-N, TN, TP, COD
crpurification efficiency Deng pollution substance is respectively: 59.1%, 57.8%, 71.1%, 89.4%.
Visible by above-described embodiment, kidney tea is to the NH in the combined system sanitary sewage of rural area
4 +-N, TN, TP, COD
crthere is significant removal effect, can be used for the process of rural area combined system sanitary sewage.
Claims (7)
1. kidney tea is in the application in the combined system sanitary sewage of process rural area, Touch-me-notAction Plant is planted in automatic oxygen supply artificial wet land system, purifies rural area combined system sanitary sewage, it is characterized in that: mixed-matrix and oscillation are filled in described automatic oxygen supply artificial wet land system inside, are automatically supported wet land system inside by the hole of oscillation.
2. automatic oxygen supply artificial wet land system according to claim 1, is characterized in that: described mixed-matrix is mixed-matrix 1---gravel: useless masonry=1:2, mixed-matrix 2---shale: vermiculite=1:1, mixed-matrix 3---sandy soil: useless masonry=3:1.
3. automatic oxygen supply artificial wet land system according to claim 1, it is characterized in that: in described wetland, fill the mixed-matrix 3 that 15-20cm is thick, the thick particle diameter of the mixed-matrix of particle diameter 20 ~ 30mm 1,30-35cm is 5 ~ 10mm mixed-matrix 2 and 25-30cm is thick, particle diameter is 1 ~ 5mm.
4. automatic oxygen supply artificial wet land system according to claim 1, is characterized in that: all lay one deck oscillation bottom mixed-matrix 1 and mixed-matrix 2 in described wet land system.
5. be automatic oxygen supply artificial wet land system according to claim 1, it is characterized in that: described wetland water purification mode adopts compartment undercurrent type intake, and waste water enters from left side, water leg on the right side of entering after wet land system process, and get rid of through water port; Each water inlet interval time is 6d, then stops water inlet 1d.
6. automatic oxygen supply artificial wet land system according to claim 2, is characterized in that: described automatic oxygen supply artificial wet land system is of a size of 120cm × 50cm × 90cm(L × W × H).
7. apply according to claim 1, it is characterized in that: periodical reaping part kidney tea plant is medicinal, remove Lao Ye and avoid secondary pollution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636582.2A CN104386821A (en) | 2014-11-11 | 2014-11-11 | Application of clerodendranthus spicatus to treatment of rural domestic wastewater in combined system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636582.2A CN104386821A (en) | 2014-11-11 | 2014-11-11 | Application of clerodendranthus spicatus to treatment of rural domestic wastewater in combined system |
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| Publication Number | Publication Date |
|---|---|
| CN104386821A true CN104386821A (en) | 2015-03-04 |
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|---|---|---|---|
| CN201410636582.2A Pending CN104386821A (en) | 2014-11-11 | 2014-11-11 | Application of clerodendranthus spicatus to treatment of rural domestic wastewater in combined system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2397149C1 (en) * | 2008-11-25 | 2010-08-20 | Валерий Иванович Толстограй | Method and structure for cleaning of domestic wastewater with application of ecological system elements |
| CN202519091U (en) * | 2012-01-12 | 2012-11-07 | 重庆文理学院 | Automatic oxygenation type hollow brick constructed wetland device |
| CN102807284A (en) * | 2012-01-18 | 2012-12-05 | 重庆文理学院 | Application of Chinese crinums to purification of livestock and poultry breeding biogas liquid |
-
2014
- 2014-11-11 CN CN201410636582.2A patent/CN104386821A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2397149C1 (en) * | 2008-11-25 | 2010-08-20 | Валерий Иванович Толстограй | Method and structure for cleaning of domestic wastewater with application of ecological system elements |
| CN202519091U (en) * | 2012-01-12 | 2012-11-07 | 重庆文理学院 | Automatic oxygenation type hollow brick constructed wetland device |
| CN102807284A (en) * | 2012-01-18 | 2012-12-05 | 重庆文理学院 | Application of Chinese crinums to purification of livestock and poultry breeding biogas liquid |
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Application publication date: 20150304 |