CN101973635B - Method for efficiently purifying heavy metal polluted wastewater by combining wetland plant - Google Patents
Method for efficiently purifying heavy metal polluted wastewater by combining wetland plant Download PDFInfo
- Publication number
- CN101973635B CN101973635B CN2010102906845A CN201010290684A CN101973635B CN 101973635 B CN101973635 B CN 101973635B CN 2010102906845 A CN2010102906845 A CN 2010102906845A CN 201010290684 A CN201010290684 A CN 201010290684A CN 101973635 B CN101973635 B CN 101973635B
- Authority
- CN
- China
- Prior art keywords
- plant
- wetland
- heavy metal
- artificial swamp
- wetland plant
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
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 belongs to wetland purification technology for wastewater and relates to a method for efficiently purifying heavy metal polluted wastewater by combining wetland plants. Six wetland plants are cultured in an artificial wetland, namely Echinochiloa crus-galli, Alternanthera philoxeroides, Zizania latifolia, Monochoria vaginalis, Iachne globosa and Polygonum hydropiper according to a culture ratio of 1:2:1:3:2:3. The purification rate for six main heavy metal pollution elements (Cd, Pb, Zn, Cu, Cr and Ni) in the wastewater is over 92 percent.
Description
Technical field
The invention belongs to the wetland purification technology of sewage, relate in particular to the method for combination type wetland plant efficient purification of heavy metal pollution waste water.
Background technology
The pollutant kind of municipal effluent is complicated, and inorganic pollutants such as multiple organic pollutant, nitrogen phosphorus are not only arranged, and also has multiple deleterious heavy metal contamination element, particularly the waste water of industries such as metallurgy, printing and dyeing, chemical industry.
Traditional urban sewage treatment technology comprises physics, chemistry and biological degradation etc.; These methods are better to the organic pollutant effect in the waste water; If but when containing the heavy metal contaminants of higher concentration in the waste water; Then heavy metal can not be removed effectively, and heavy metal also can suppress biological normal degradation function.
It is high to human toxicity that heavy metal belongs to mostly, and the metallic element of the accumulation that is prone to be absorbed by the body.Can cause the human kidney dysfunction like the long-term edible high rice of Cd content, cause mortality ratio to rise the lost of life.Pb is to the toxic effect of multiple organ of human body, like nervus centralis, red blood cell, kidney, cardiovascular and men and women's reproductive system.Test of long duration shows: infancy contact is than the Pb (blood Pb concentration is 10-20 μ g/dl) of low dosage, can cause children's cns irreversible, can not treat and follow lifelong infringement.Cd is confirmed as the carcinogenic substance to the mankind by international cancer research institution (International Agency for Research on Cancer), and Pb is classified as the carcinogenic substance possible to the mankind (2B group).
Artificial swamp is as a kind of emerging sewage treatment project, and nearly more than ten years development is very rapid, and it is being preserved the ecological environment, the advantage that save energy and investor's mask have the conventional process technology to hardly match.As the sewage treatment project technology of a low investment, less energy-consumption, low running cost, high ecological environment benefit, artificial swamp has been widely used in the municipal sewage treatment practice.China be used for artificial swamp that sanitary wastewater handles in succession in Beijing, a lot of areas such as Guangdong and Shanghai are built up and put into operation.
In recent years, wetland plant receives global extensive concern to the absorption of heavy metal and accumulation ability and application facet thereof.According to research report, multiple wetland plant has extremely strong accumulation ability to the heavy metal in the pollutant effluents, and its intravital heavy metal concentration can reach the hundreds of of heavy metal concentration in its growth waste water even several thousand times.Therefore have broad application prospects aspect the heavy metal of wetland plant in purifying liquid waste.
In artificial marsh sewage treatment system, wetland plant is most important organic component, so the treatment effect that will be directly connected to artificial swamp is selected and disposed to the wetland plant kind.China is primarily aimed at the decontamination effect improving of nutritive substances such as organic pollutant in the sewage (COD, BOD etc.) and N, P at present in the research aspect this.And to the purification aspect of heavy metal contaminants in the sewage, report seldom.
The wetland plant recovery technique of heavy metal is a kind of wetland plant that utilizes self-sow or through the cultivate plants general name of restoration of soil polluted by heavy metal or water body technology of genetic engineering.Mainly comprise plant stability technology and plant extraction technology.The plant extraction technology also is called as plants enriched technology; It refers to utilize the obligate root system of plant to absorb one or more heavy metals; And with its transfer, be stored to over-ground part, gather in the crops cauline leaf then, focus on; Thereby can fundamentally remove the heavy metal in the sewage, but different types of wetland plant and upgrowth situation thereof are very big to the absorption cleaning function effect of wetland plant.And at present, in heavy metal polluted waste water artificial swamp process field, select also to lack very much research with the configuration aspect about the wetland plant kind, seriously limited the application of artificial swamp treatment technology aspect purification of heavy metal pollution waste water.
Summary of the invention
The present invention is in order to solve above-mentioned deficiency of the prior art; On the basis that the applicant studies for many years; The best wetland floristics and the collocation of performance wetland plant purification function, the middle heavy metal of efficiently purifying liquid waste are proposed in the artificial swamp treatment technology of heavy metal polluted waste water.The combination that this 6 kind of plant constitutes all reaches more than 92% the purification efficiency of six kinds of main heavy metal contamination elements (Cd, Pb, Zn, Cu, Cr, Ni) in the waste water.
In order to address the above problem; Technical scheme of the present invention is following; A kind of method of combination type wetland plant efficient purification of heavy metal pollution waste water: in artificial swamp; Contain six kind of plant, wherein barnyard grass: alternanthera philoxeroides: hay bamboo shoot: Sheathed Monochoria: the willow leaf indocalamus: polygonum flaccidum=1: 2: 1: 3: 2: 3 according to the plantation amount of following ratio; Six kind of plant different sorts plants are planted at interval, wherein between hay bamboo shoot and polygonum flaccidum, barnyard grass and the willow leaf indocalamus distance apart greater than the distance apart between the other plant.
The present invention adopts six kind of plant combination purification heavy metal polluted waste waters in artificial swamp, this 6 kind of plant reaches all very strong to the patience of heavy metal toxicity to the receptivity of heavy metal.In this 6 kind of plant, alternanthera philoxeroides is a prostrate plant, and Sheathed Monochoria is shorter and scattered, and barnyard grass and willow leaf indocalamus are uprightly grown thickly, and hay bamboo shoot and polygonum flaccidum are taller and bigger and upright.So, these 6 kinds of wetland plants are planted in wetland, not only very capable to the heavy metal absorption cleaning in the waste water, and can make full use of the growing space, and form the plant community of a vigorous growth, further improve decontamination effect improving to heavy metal in the waste water.This wetland plant combination can reach more than 92% the decontamination effect improving of main heavy metal contamination element in the waste water.
Description of drawings
Wherein Fig. 1 is the picture of six kinds of wetland plants using among the present invention.
Embodiment
1, the artificial swamp pond is built
Utilize natural bottom land (pond, river course) or build the artificial swamp pond with cement concrete, the artificial swamp pool area is confirmed according to sewage load, day quantity of wastewater effluent (m
3): wetland pool area (m
2) be 1: 5, in fill out pollution-free thickness of soil 40-50cm; Pour water in the wetland pond after immersion (the maintenance water surface is higher than native 10cm) 10 days, plant into the wetland plant seedling.
2, wetland plant collection, plant and manage
Gather 6 kinds of wetland plant seedling in suburbs, concrete name, section's name and the formal name used at school of planting seen table 1.According to the kind interbody spacer of the plantation amount of following ratio six kind of plant are planted into the artificial swamp pond then, the average strain spacing of plant 20cm, wherein between hay bamboo shoot and polygonum flaccidum, barnyard grass and the willow leaf indocalamus distance apart greater than the distance apart between the other plant.The sewage irrigation depth of water keeps about 10cm, wherein barnyard grass: alternanthera philoxeroides: hay bamboo shoot: Sheathed Monochoria: willow leaf indocalamus: polygonum flaccidum=1: 2: 1: 3: 2: 3.
According to applicant's years of researches; This 6 kind of plant will be at the 40-50 days states that reach capacity in back of planting to the absorbed dose of heavy metal; Therefore suggestion is every focuses at a distance from plant of 40-50 harvesting then, can improve the decontamination effect improving of wetland plant to heavy metal in the waste water greatly like this.
Table 1 wetland plant section name, kind name and formal name used at school
The combination of this wetland plant of table 2 is to the purification efficiency of main heavy metal contamination element in the waste water
Claims (1)
1. the method for a combination type wetland plant efficient purification of heavy metal pollution waste water; It is characterized in that in artificial swamp; Contain six kind of plant, wherein barnyard grass: alternanthera philoxeroides: hay bamboo shoot: Sheathed Monochoria: the willow leaf indocalamus: polygonum flaccidum=1: 2: 1: 3: 2: 3 according to the plantation amount of following ratio; Six kind of plant different sorts plants are planted at interval, wherein between hay bamboo shoot and polygonum flaccidum, barnyard grass and the willow leaf indocalamus distance apart greater than the distance apart between the other plant;
Wherein said artificial swamp utilizes natural bottom land or builds the artificial swamp pond with cement concrete, and the artificial swamp pool area is confirmed according to sewage load, day quantity of wastewater effluent (m
3): wetland pool area (m
2) be 1: 5, in fill out pollution-free thickness of soil 40-50cm; The immersion of pouring water in the wetland pond keeps the water surface to be higher than native 10cm, after 10 days, plants into the wetland plant seedling; Wherein said natural bottom land is pond or river course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102906845A CN101973635B (en) | 2010-09-21 | 2010-09-21 | Method for efficiently purifying heavy metal polluted wastewater by combining wetland plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102906845A CN101973635B (en) | 2010-09-21 | 2010-09-21 | Method for efficiently purifying heavy metal polluted wastewater by combining wetland plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973635A CN101973635A (en) | 2011-02-16 |
| CN101973635B true CN101973635B (en) | 2012-11-28 |
Family
ID=43573552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102906845A Active CN101973635B (en) | 2010-09-21 | 2010-09-21 | Method for efficiently purifying heavy metal polluted wastewater by combining wetland plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101973635B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583756B (en) * | 2012-01-18 | 2014-04-16 | 重庆文理学院 | Application of polygonum capitatum in purifying livestock breeding biogas slurry |
| CN102583755A (en) * | 2012-01-19 | 2012-07-18 | 靖德兵 | Method for removing heavy metals from water body by composite wetland vegetation |
| CN102671934A (en) * | 2012-05-04 | 2012-09-19 | 上海市园林科学研究所 | Method for restoring heavy metal polluted soil by utilizing arbuscular mycorrhizae |
| CN105127184A (en) * | 2015-09-23 | 2015-12-09 | 常州大学 | Phytoremediation combination method for severe-chromium-pollution paddyfield soil |
| CN105382023A (en) * | 2015-12-23 | 2016-03-09 | 常州大学 | Plant composition restoring method for nickel-contaminated rice field soil |
| CN105382021A (en) * | 2015-12-23 | 2016-03-09 | 常州大学 | Plant composition remediation method for paddy soil polluted by copper |
| CN109744137A (en) * | 2019-03-07 | 2019-05-14 | 宁波大学 | A method of metal plating waste water heavy metal is absorbed with hydroponic plant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333190A (en) * | 2000-07-11 | 2002-01-30 | 中国科学院水生生物研究所 | Sewage treatment method and equipment thereof |
| CN1478739A (en) * | 2003-08-04 | 2004-03-03 | 北京科技大学 | Sludge treatment method and its artificial wetland treatment pool |
| CN201128703Y (en) * | 2007-06-01 | 2008-10-08 | 山东大学 | Subsurface flow and surface flow alternate constructed wetland |
-
2010
- 2010-09-21 CN CN2010102906845A patent/CN101973635B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333190A (en) * | 2000-07-11 | 2002-01-30 | 中国科学院水生生物研究所 | Sewage treatment method and equipment thereof |
| CN1478739A (en) * | 2003-08-04 | 2004-03-03 | 北京科技大学 | Sludge treatment method and its artificial wetland treatment pool |
| CN201128703Y (en) * | 2007-06-01 | 2008-10-08 | 山东大学 | Subsurface flow and surface flow alternate constructed wetland |
Non-Patent Citations (1)
| Title |
|---|
| 李光辉等.不同湿地植物的根系泌氧作用与重金属吸收.《水资源保护》.2010,第26卷(第1期),17-20. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101973635A (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101973635B (en) | Method for efficiently purifying heavy metal polluted wastewater by combining wetland plant | |
| Rezania et al. | Perspectives of phytoremediation using water hyacinth for removal of heavy metals, organic and inorganic pollutants in wastewater | |
| CN103951067B (en) | System and method for treating rural sewage by using ecological system based on multi-submerged plant combinations | |
| Tam et al. | Accumulation and distribution of heavy metals in a simulated mangrove system treated with sewage | |
| Thut | Utilization of artificial marshes for treatment of pulp mill effluents | |
| CN101774696B (en) | Application of pilea cadierei in treating livestock and poultry breeding wastewater | |
| CN101597107B (en) | Application of chervil lankspur herb in treating livestock breeding wastewater | |
| Wu et al. | Purification effects of two eco-ditch systems on Chinese soft-shelled turtle greenhouse culture wastewater pollution | |
| CN102807284B (en) | Application of Chinese crinums to purification of livestock and poultry breeding biogas liquid | |
| CN101591066B (en) | Application of cardamine hirsute in treating livestock and poultry cultivation wastewater | |
| CN105036482B (en) | A kind of rural area low-pollution water advanced purification system | |
| Xin et al. | Effects of pH on boron accumulation in cattail (Typha latifolia) shoots, and evaluation of floating islands and upward flow mesocosms for the removal of boron from wastewater | |
| CN101613155B (en) | Application of Chinese forgetmenot root in treating livestock breeding wastewater | |
| Tepe et al. | Treatment of effluents from fish and shrimp aquaculture in constructed wetlands | |
| CN108946953A (en) | A kind of method of water plant combination purification sewage | |
| CN104628142A (en) | Method for purifying water body by utilizing aquatic plants and riparian vegetation | |
| CN102020358B (en) | Application of centella asiatica in treatment of livestock and poultry breeding wastewater | |
| CN101591067B (en) | Application of Ranunculus sieboldii in treating livestock and poultry cultivation wastewater | |
| CN213895510U (en) | Pond culture tail water treatment system | |
| Ling et al. | Study on removal efficiency of nitrogen and phosphorus from agricultural wastewater by subsurface flow constructed wetland | |
| CN101774698B (en) | Application of ligularia sibirica in treating livestock and poultry breeding waste water | |
| CN102020357A (en) | Application of chamaedorea elegan in processing livestock and poultry cultivating wastewater | |
| CN111333267A (en) | Efficient nitrogen and phosphorus interception water purification system and water purification method in rural domestic sewage | |
| CN102329002A (en) | Application of plant ecological floating bed to restoration of eutrophic water | |
| CN101767880B (en) | Application of bird nest fern in treatment of livestock and poultry breeding waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151023 Address after: Tai Zhen Du tou street 213311 Jiangsu province Changzhou City 8-2 No. 7 Patentee after: Liyang Chang Technology Transfer Center Co., Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: Changzhou University |