CN101774696A - Application of pilea cadierei in treating livestock and poultry breeding wastewater - Google Patents

Application of pilea cadierei in treating livestock and poultry breeding wastewater Download PDF

Info

Publication number
CN101774696A
CN101774696A CN201010122622A CN201010122622A CN101774696A CN 101774696 A CN101774696 A CN 101774696A CN 201010122622 A CN201010122622 A CN 201010122622A CN 201010122622 A CN201010122622 A CN 201010122622A CN 101774696 A CN101774696 A CN 101774696A
Authority
CN
China
Prior art keywords
breeding wastewater
livestock
wastewater
poultry breeding
pilea
Prior art date
Application number
CN201010122622A
Other languages
Chinese (zh)
Other versions
CN101774696B (en
Inventor
邓仕槐
阳路芳
袁野
李远伟
杨刚
孙百晔
张小洪
张延宗
王应军
肖鸿
李黎
彭宏
Original Assignee
四川农业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 四川农业大学 filed Critical 四川农业大学
Priority to CN2010101226223A priority Critical patent/CN101774696B/en
Publication of CN101774696A publication Critical patent/CN101774696A/en
Application granted granted Critical
Publication of CN101774696B publication Critical patent/CN101774696B/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses application of pilea cadierei in treating livestock and poultry breeding wastewater, belonging to wastewater treatment filed. In the invention, the characteristics that of pilea cadierei has cold resistance, does not fall leaves or wither in winter and can absorb and remove ammonia nitrogen, total nitrogen and other pollutants in livestock and poultry breeding wastewater is utilized, and the pilea cadierei is directly transplanted or inserted by cuttage in the environment of livestock and poultry breeding wastewater to absorb the pollutants of accumulated wastewater so as to purify the livestock and poultry breeding wastewater. The invention solves the problem that most of plants for purifying wastewater have poor purification effects in winter currently and also provides new types of plant resources for the treatment of livestock and poultry breeding wastewater pollution, brings new improvement and development space for the treatment of livestock and poultry breeding wastewater pollution by artificial wetland plants, and achieves obvious advantages in operation cost, operation maintenance, treatment effect, as well as brought economical benefits in landscape, environmental protection and medical application, compared with traditional plants for purifying wastewater.

Description

The application of pilea cadierei in handling livestock breeding wastewater
Technical field
The present invention relates to the natural biology degradation technique field of livestock breeding wastewater, the application of particularly a kind of constructed wetland plant in handling livestock breeding wastewater.
Background technology
Livestock breeding wastewater pollutes and has chronicity and non-reversibility, and its features of pollution is high suspended matter, high organism and high ammonia nitrogen, and biodegradability is strong, and stink is big.
Poultry industry is the important component part of China's agricultural and rural economy, it also is the one of the main reasons that causes China's rural area pollution of area source, it is serious day by day that livestock and poultry breeding industry is greatly developed the problem of environmental pollution that is brought, not only influence Economic development, but also jeopardize ecological safety, become the social concern of people's common concern.The severe contamination that ight soil that livestock and poultry farm produces and sewage cause surface water, underground water, soil and ambient air has directly influenced people's healthy and ordinary production life.The method of handling the livestock breeding wastewater pollution at present mainly contains natural biology degradation technique (as soil treatment, oxidation pond processing, artificial swamp processing etc.), anaerobic treatment technology (as anaerobic filter, up-flow anaerobic sludge blanket, flow lifting type solid reactor etc.), aerobic treatment technology (as biological filter, blodisc, sequencing batch active sludge, A/O technology and oxidation ditch etc.) etc.These methods all have certain characteristics, and can reduce the pollution level of livestock breeding wastewater to a certain extent.Yet, adopting anaerobism or aerobic biologic treating technique, its effluent quality is difficult to reach corresponding emission standard, lets alone sewage comprehensive discharge primary standard, if adopt compulsory physical chemistry measure intensifying treatment effect, often cost is too high.The characteristics of natural biology degradation technique (artificial swamp processing) can remedy the limitation that the aquaculture economic capability is limited, lack the technician that certain operation and level of management are arranged just, especially are fit to be located in the plant of Rural areas.Adopt natural biology degradation technique (artificial swamp processing) to strengthen the treatment effect of livestock breeding wastewater pollution treatment system, a kind of suitable treatment technology of can yet be regarded as.
Beginning of the nineties late 1980s, held the artificial swamp conference of disposing of sewage in succession in the U.S., Britain, proposed the relevant purification mechanism of artificial swamp and design specifications and the data that some can be for reference, indicated that artificial swamp enters environmental science as a kind of Sewage treatment systems that shows unique characteristics.In recent years, researchs such as application of the engineering of artificial swamp and purification mechanism more and more are subject to people's attention.Artificial swamp can not only effectively be removed suspended substance, organic pollutant, nitrogen and the phosphorus etc. in the sewage, and can effectively remove exogenous bioactive substances such as pathogenic bacteria, heavy metal, algae toxin, it is low to have construction cost, power consumption is few, working cost is low and effective and do not cause multifrequency nature such as secondary pollution, higher nitrogen, tp removal rate are not only arranged, also have the effect of beautifying the environment.Pollute one of the serious environmental problem become that whole world people will face along with water, artificial swamp has obtained long term growth because of its special advantages, especially shown great potentiality in polluting purifying livestock breeding wastewater, become and begin the research focus paid close attention in recent years.Be used at present to handle the plant that livestock breeding wastewater pollutes cyperus alternifolius (Cyperus alternifolius), chrysanthemum Canna generalis Bailey (Cannaceaeindica var.flava), wilson iris (Iris pseudoacorus), calamus (Acorus calamus Linn), wild rice stem (Zizania latifolia), reed (Phragmites australis) etc. have been arranged.
But, in the face of the present serious day by day problem of bringing of livestock breeding wastewater pollution of greatly developing owing to livestock and poultry cultivation, above-mentionedly can be used for handling the plant variety resource that livestock breeding wastewater pollutes and seem very limited, be difficult to satisfy actual needs, still await further reasonable development and can be used in a large number handling the plant variety resource that livestock breeding wastewater pollutes, to adapt to the needs of wastewater treatments such as different areas, different quality soil property.In addition, the plant that present great majority are used to purify waste water is an annual herb, winter hardiness is poor, winter is withered, this has not only influenced the decontamination effect improving of winter to livestock breeding wastewater, and dry branches and fallen leaves enters in the water, can bring secondary pollution to water body, thereby cause undesirable to the decontamination effect improving of livestock breeding wastewater in the winter time.
Pilea cadierei (Pilea cadierei Gagnep.et Guill), another name root of Henry saruma, hundred spot Malus spectabilis, Urticaceae (Urticaceae) Pilea (Pilea).Originate in the Central Vietnam mountain area, in the greenhouse cultivation is arranged all over the world at present.Plant height 30-60cm, terrestrial stem grows thickly, and thin and delicate meat is translucent, and rib is arranged above, and joint portion expands, and young stem is green in vain, and old stem is filbert.Leaf is to life, and ellipticity is avette, the blunt point of tip, the wide wedge shape of base portion, long 3-5cm, wide 2.5-4cm.Article 3, master pulse and tip 4-6 bar lateral vein are all apparent in view, and the vein part is slightly recessed, dark green, and greyish white extremely argenteous speckle is arranged between 3 master pulses, and speckle part projection is like the crab shelly.Leaf margin has wavy cognate.Petiole is short, and translucent, base portion has stipellum.Cyme, the top is given birth to or take out life between axil, and peduncle is filbert, and is translucent.More cold-resistant, winter temperature is not less than 6 ℃ and can not endures cold, and begins growth more than 14 ℃.Happiness warm and humid climate condition is afraid of exposure in sunshine, and green clearly demarcated at thin shady environment inferior lobe look white, internode is short and compact, and the blade face is bright and glossy.All covering usually excessive growth under the shady environment, internode is elongated, thatch stalk softness, and lodging easily, strain shape is loose.Not tight to the soil requirement, ability weak base is more water-fast wet, not drought-enduring.
At present, pilea cadierei mainly as view and admire, decorative plant, aspect indoor beautifying, use morely, be quite popular small-sized foliage plants, because its adaptability is strong, anti-pruning, breeding easily is than being easier to plantation, the strain clump is small and exquisite plain, and the leaf look green is white clearly demarcated, the grain pattern beauty; Display in the study, the bedroom, elegant pleasant; Before also can being suspended to window, greenery hang down, and are charming lovely; To belong to various plants together similar, pilea cadierei also can be used as the plant of indoor absorption toxic substance.In order to allow pilea cadierei keep the strain shape of round and mellow compactness, should regularly prune.No matter major branch still be side shoot as not then constantly lengthening growth of cutting back, long during to the 40cm left and right sides stem stalk begin to lodge to the periphery, at this moment should carry out cutting back, impel following axillary bud sprouting to branch out, make the strain clump dense and compact.
In addition, pilea cadierei still is a kind of Chinese medicinal materials, and as medicinal, all herbal medicine has functions such as clearing heat and detoxicating, diuresis.Its pharmacological action all has restraining effect for suppressing tubercule bacillus and Leptospira to streptococcus aureus, Hemolytic streptococcus.
Summary of the invention
Goal of the invention of the present invention is: at above-mentioned prior art can be used for handling plant resources deficiency, winter hardiness that livestock breeding wastewater pollutes poor, easily the sewage water body is caused secondary pollution problem, a kind of new plant resources that can be used for handling the waste water that waste water especially produces in the livestock and poultry cultivation process is provided.
The technical solution used in the present invention is such: in the livestock breeding wastewater contaminate environment, and the plantation pilea cadierei.
As one of preferred: described pilea cadierei is directly transplanted plantation.
As one of preferred: described pilea cadierei is carried out cottage propagation.
As further preferred: all can carry out cottage propagation to pilea cadierei at spring and autumn, take root easily, under 20 ℃ of temperature, about 1 week can take root.
As further preferred: the over-ground part of the pilea cadierei of cutting back pruning plantation regularly.
As further preferred: in pilea cadierei eugonic 4~November, for preventing that the long outside lodging of its major branch or collateral generation from causing the secondary pollution of water body, the pilea cadierei over-ground part carried out cutting back pruning one time in per two months, keep stem culm base 2~3 joints; Axillalry bud can be sprouted soon and take out and give birth to new side shoot.
As further preferred: the top limb cuttage of the pilea cadierei after will pruning is cultivated in common compost or river sand and is taken root into a new strain.
The contriver is in long-term great deal of experimental process, find that pilea cadierei can be as a kind of novel constructed wetland plant, ammonia nitrogen (being NH4+-N), total phosphorus (being TP), total nitrogen (being TN), the chemical oxygen demand that can effectively reduce in the livestock breeding wastewater (are COD Cr), the content of total organic carbon pollutents such as (being TOC), mainly based on the remarkable absorption of the pilea cadierei of in long-term a large amount of tests, finding common pollutent in remove characteristic, so be applied to the wastewater treatment of livestock and poultry cultivation to above-mentioned sewage.
In sum, the invention has the beneficial effects as follows:
1, the present invention finds that by long-term a large amount of tests pilea cadierei is to NH in the livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC has significant absorption and removes characteristic, and fully made full use of this specific character, it planted in the livestock breeding wastewater contaminate environment ammonia nitrogen, total phosphorus, total nitrogen, COD in the absorption and accumulation livestock breeding wastewater CrDeng pollutent, thereby reduce NH in the livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC content; During certain biomass to be formed, just can reach and reduce NH in the livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC the purpose of content, further purify livestock breeding wastewater.
2, by regularly in the livestock breeding wastewater of having planted pilea cadierei, gathering water sample and its effluent quality being measured, prove that fully pilea cadierei can effectively remove NH in the livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC content, thereby purify livestock breeding wastewater.
3, because the physiological property of pilea cadierei itself, its vitality is very vigorous, easily survive, can carry out direct cottage propagation, spring and autumn all can carry out, take root easily, cold-resistant, winter temperature is not less than 6 ℃ and can not endures cold, begin growth more than 14 ℃, and be perennial plant, do not need annual plantation, in its whole growth process, do not need to carry out special management, thereby cost is low, working cost is low, effective, simple in the operation, new plant resource variety has been developed in the processing of also polluting for livestock breeding wastewater simultaneously, and the deep development of handling the livestock breeding wastewater pollution for constructed wetland plant has brought new progress and development space.
4, because the anti-pruning of pilea cadierei, through regularly pruning, can prevent that its deadwood and rotten leaf from falling in the water, can avoid the disadvantageous effect of using other plant in the winter time Sewage treatment systems to be brought, prevented secondary pollution to water body, also can guarantee purifying water effect preferably in the winter time, solve plant that present great majority are used to the purify waste water unfavorable problem of decontamination effect improving in the winter time.
5, pilea cadierei not only has livestock breeding wastewater treatment effect preferably, and have stronger view, environmental protection and an economic worth such as medicinal, compared with prior art, the present invention is no matter on running cost, Operation and Maintenance, treatment effect, still on the view that is brought, environmental protection, economic worth such as medicinal, all has remarkable advantages.
Description of drawings
Fig. 1 is that pilea cadierei is to NH in the livestock breeding wastewater 4 +The treatment effect synoptic diagram of-N;
Fig. 2 is the treatment effect synoptic diagram of pilea cadierei to TP in the livestock breeding wastewater;
Fig. 3 is the treatment effect synoptic diagram of pilea cadierei to TN in the livestock breeding wastewater;
Fig. 4 is that pilea cadierei is to COD in the livestock breeding wastewater CrThe treatment effect synoptic diagram;
Fig. 5 is the treatment effect synoptic diagram of pilea cadierei to TOC in the livestock breeding wastewater.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done detailed explanation.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment 1:
Under the natural condition, the pilea cadierei seedling that collects is directly transplanted paramount 29cm, in the rubber bucket of footpath, the end 26cm, high 32cm, water distributor is established in its bottom, by the supreme gravel bed that is followed successively by about thickness 5cm, diameter 2-5cm in the end, the rough sand layer that 10cm is thick, the pedosphere of 10cm thick (counting roughly 8kg), tap water were stablized 15 days.After treating that plant is stable, regularly water livestock breeding wastewater, and gather water sample and measure its effluent quality (hydraulic detention time was made as 7 days).The pot experiment flooding quantity is measured by the estimation equation (1) that Reed recommended:
Q = F K - - - ( 1 )
In the formula: Q---design wastewater flow, m 3/ d;
The land area that F---artificial swamp takies, hm 2
K---coefficient, 6.57 * 10 -3
As calculated, the processing water yield of potted plant experiment is 1.22L.
Other has formula (2),
Q = Fqt 0.0365 - - - ( 2 )
In the formula (2): the same formula of Q, F (1);
Q---hydraulic load, in m/ week, getting q is 20cm/d;
T---working time (whole year operation week number), week/a;
0.0365---reduction factor.
As calculated: Q=2.2L.
By measuring the NH of water inlet 4 +-N, TP, TN, COD Cr, pollutent such as TOC concentration, present embodiment determines that flooding quantity is 2.2L; Optimal water power standing time is 7 days (HRT=7d); The amount of plantation pilea cadierei is 6 strain/buckets.
To NH in the waste water 4 +-N, TP, TN, COD Cr, TOC mensuration and method of calculation, all with reference to the national standard measuring method, that is, NH 4 +-N adopts nessler reagent spectrophotometry (GB7479-87), and TP adopts ammonium molybdate spectrophotometry (GB11893-89), and TN adopts Potassium Persulphate oxidation ultraviolet spectrophotometry (GB11894-89), COD CrAdopt potassium dichromate oxidation (GB11914-89), TOC adopts combustion oxidation-non-dispersion infrared absorption process (HJ501-2009).
In the whole test stage, NH when adopting pilea cadierei to purify livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC influent concentration and go out water concentration and clearance referring to accompanying drawing 1-5, as can be seen from Figure, it is to NH in the livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC clearance be respectively: 82.87%~98.94%, 82.14%~93.28%, 88.35%~99.26,83.17%~93.82%, 92.92%~98.46%, to NH 4 +-N, TP, TN, COD Cr, TOC average decontamination effect improving be 90.01%, 89.93%, 95.71%, 91.22%, 96.42%.
By the foregoing description as seen, utilization of the present invention is planted pilea cadierei in the livestock breeding wastewater contaminate environment, to removing NH in the livestock breeding wastewater 4 +-N, TP, TN, COD Cr, pollutent such as TOC has significant effect, reached the purpose that good purification livestock breeding wastewater pollutes.

Claims (6)

1. the application of pilea cadierei in handling livestock breeding wastewater is characterized in that: in the livestock breeding wastewater contaminate environment, and the plantation pilea cadierei.
2. according to the described application of claim 1, it is characterized in that: described pilea cadierei is directly transplanted plantation.
3. according to the described application of claim 1, it is characterized in that: spring and autumn, carry out cuttage with described pilea cadierei and transplant plantation.
4. according to any described application of claim 1 to 3, it is characterized in that: the over-ground part of the pilea cadierei of cutting back pruning plantation regularly.
5. according to the described application of claim 4, it is characterized in that: in the 4~November in every year, the pilea cadierei over-ground part carried out cutting back pruning one time in per two months, keep stem culm base 2~3 joints.
6. according to the described application of claim 4, it is characterized in that: the top limb cuttage of the pilea cadierei after will pruning is cultivated in common compost or river sand and is taken root into a new strain.
CN2010101226223A 2010-03-12 2010-03-12 Application of pilea cadierei in treating livestock and poultry breeding wastewater CN101774696B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101226223A CN101774696B (en) 2010-03-12 2010-03-12 Application of pilea cadierei in treating livestock and poultry breeding wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101226223A CN101774696B (en) 2010-03-12 2010-03-12 Application of pilea cadierei in treating livestock and poultry breeding wastewater

Publications (2)

Publication Number Publication Date
CN101774696A true CN101774696A (en) 2010-07-14
CN101774696B CN101774696B (en) 2013-12-25

Family

ID=42511321

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010101226223A CN101774696B (en) 2010-03-12 2010-03-12 Application of pilea cadierei in treating livestock and poultry breeding wastewater

Country Status (1)

Country Link
CN (1) CN101774696B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515362A (en) * 2012-01-13 2012-06-27 重庆文理学院 Application of pokeberry root in purifying livestock and poultry breeding biogas slurry
CN102531188A (en) * 2012-01-18 2012-07-04 重庆文理学院 Application of Gonostegia hirta for purifying biogas slurry of livestock and poultry farming
CN102557265A (en) * 2012-01-13 2012-07-11 重庆文理学院 Application of rheum officinale to livestock and poultry culture biogas slurry purification
CN102557267A (en) * 2012-01-18 2012-07-11 重庆文理学院 Application of Reineckia carnea in purifying livestock breeding biogas slurry
CN102557266A (en) * 2012-01-18 2012-07-11 重庆文理学院 Application of Aglaonena Commutatum in purification of livestock and poultry breeding biogas slurry
CN102557264A (en) * 2012-01-13 2012-07-11 重庆文理学院 Application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries
CN102583756A (en) * 2012-01-18 2012-07-18 重庆文理学院 Application of polygonum capitatum in purifying livestock breeding biogas slurry
CN102583753A (en) * 2012-01-18 2012-07-18 重庆文理学院 Application of zephyranthes candida in purifying livestock breeding biogas slurry
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1218772A (en) * 1997-12-01 1999-06-09 中国科学院南京地理与湖泊研究所 Technology for purifying waste water by using flower plants
JP2005125171A (en) * 2003-10-22 2005-05-19 Fujita Corp Method for removing pollutant from polluted medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1218772A (en) * 1997-12-01 1999-06-09 中国科学院南京地理与湖泊研究所 Technology for purifying waste water by using flower plants
JP2005125171A (en) * 2003-10-22 2005-05-19 Fujita Corp Method for removing pollutant from polluted medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《安徽农学通报》 20070731 李盈盈等 人工湿地植物配置的技术与应用 49-50 1-6 第13卷, 第15期 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102557264A (en) * 2012-01-13 2012-07-11 重庆文理学院 Application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries
CN102557264B (en) * 2012-01-13 2014-11-19 重庆文理学院 Application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries
CN102557265A (en) * 2012-01-13 2012-07-11 重庆文理学院 Application of rheum officinale to livestock and poultry culture biogas slurry purification
CN102515362A (en) * 2012-01-13 2012-06-27 重庆文理学院 Application of pokeberry root in purifying livestock and poultry breeding biogas slurry
CN102583756A (en) * 2012-01-18 2012-07-18 重庆文理学院 Application of polygonum capitatum in purifying livestock breeding biogas slurry
CN102557266A (en) * 2012-01-18 2012-07-11 重庆文理学院 Application of Aglaonena Commutatum in purification of livestock and poultry breeding biogas slurry
CN102557267A (en) * 2012-01-18 2012-07-11 重庆文理学院 Application of Reineckia carnea in purifying livestock breeding biogas slurry
CN102583753A (en) * 2012-01-18 2012-07-18 重庆文理学院 Application of zephyranthes candida in purifying livestock breeding biogas slurry
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
CN102583756B (en) * 2012-01-18 2014-04-16 重庆文理学院 Application of polygonum capitatum in purifying livestock breeding biogas slurry
CN102531188A (en) * 2012-01-18 2012-07-04 重庆文理学院 Application of Gonostegia hirta for purifying biogas slurry of livestock and poultry farming
CN102531188B (en) * 2012-01-18 2014-12-24 重庆文理学院 Application of Gonostegia hirta for purifying biogas slurry of livestock and poultry farming
CN102807284B (en) * 2012-01-18 2014-12-24 重庆文理学院 Application of Chinese crinums to purification of livestock and poultry breeding biogas liquid

Also Published As

Publication number Publication date
CN101774696B (en) 2013-12-25

Similar Documents

Publication Publication Date Title
Zhao et al. Purifying eutrophic river waters with integrated floating island systems
Wang et al. Floating treatment wetland nutrient removal through vegetation harvest and observations from a field study
Tanner et al. Nutrient removal by a constructed wetland treating subsurface drainage from grazed dairy pasture
Wolverton et al. The water hyacinth: from prolific pest to potential provider
Król et al. Quite a few reasons for calling carnivores ‘the most wonderful plants in the world’
Malmer et al. Interactions between Sphagnum mosses and field layer vascular plants in the development of peat-forming systems
Hillman et al. The uses of duckweed: The rapid growth, nutritional value, and high biomass productivity of these floating plants suggest their use in water treatment, as feed crops, and in energy-efficient farming
Kim et al. Use of sugar kelp aquaculture in Long Island Sound and the Bronx River Estuary for nutrient extraction
Reddy et al. Fate of nitrogen‐15 enriched ammonium nitrate applied to corn
Vymazal et al. Removal mechanisms and types of constructed wetlands
Al-Nakshabandi et al. Some environmental problems associated with the use of treated wastewater for irrigation in Jordan
Cattaneo et al. The relative contribution of aquatic macrophytes and their epiphytes to the production of macrophyte beds 1
Lu et al. Phytoremediation to remove nutrients and improve eutrophic stormwaters using water lettuce (Pistia stratiotes L.)
Dodds et al. The ecology of Cladophora
Wantzen et al. Organic matter processing in tropical streams
Boyd Vascular aquatic plants for mineral nutrient removal from polluted waters
Filzgerald Some factors in the competition or antagonism among bacteria, algae, and aquatic weeds
Yang et al. Contaminant removal of domestic wastewater by constructed wetlands: effects of plant species
Greenway et al. Constructed wetlands in Queensland: performance efficiency and nutrient bioaccumulation
Zuo et al. Studies on the improvement in iron nutrition of peanut by intercropping with maize on a calcareous soil
Alaerts et al. Performance analysis of a full-scale duckweed-covered sewage lagoon
CN103214099B (en) Ecological restoration and purification method for water of lake and pool wet land
Wen et al. In situ removal of dissolved phosphorus in irrigation drainage water by planted floats: preliminary results from growth chamber experiment
Burkholder et al. Water-column nitrate enrichment promotes decline of eelgrass Zostera marina: evidence from seasonal mesocosm experiments.
Hytteborn et al. Boreal forests of Eurasia

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131225

Termination date: 20200312

CF01 Termination of patent right due to non-payment of annual fee