CN104841692B - Application of the Tupersan in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost - Google Patents
Application of the Tupersan in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost Download PDFInfo
- Publication number
- CN104841692B CN104841692B CN201510226856.5A CN201510226856A CN104841692B CN 104841692 B CN104841692 B CN 104841692B CN 201510226856 A CN201510226856 A CN 201510226856A CN 104841692 B CN104841692 B CN 104841692B
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- siduron
- content
- compost
- garbage compost
- 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.)
- Expired - Fee Related
Links
Landscapes
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses application of the Tupersan (Siduron) in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost.Described reinforcing turfgrass extracts the influence that heavy metal from consumer garbage compost refers to observing its heavy metal heavy metal content of beary metal in the enrichment condition of Plant aboveground and under ground portion and to leaching liquor in plant above ground biomass, compost by adding Siduron into lawn composting substrate.Test result indicates that：The SiduronSiduron for adding 10 20mmol/kg is remarkably reinforced the ion activity of heavy metal and migration ratio with increasing content of beary metal in leacheate after heavy metal generation coupling effect in compost, and the elution of this heavy metal repairs significant.
Description
Technical field
The invention belongs to environmental protection technical field, it is related to Tupersan (Siduron) and extracts life rubbish in reinforcing turfgrass
Application in terms of rubbish compost heavy metal.
Background technology
House refuse is the general designation of the solid waste dumped in the people's daily life of city, and China is to domestic waste
Processing more use composting technology.Producing fertilizer from refuse in daily life is sought needed for containing the growth of the various plants such as phosphorus, nitrogen, potassium and organic matter
Material is supported, agricultural can be applied to as organic fertilizer.Nutrient in garbage compost can increase the content of organic matter in nutrient
11.81%-72.12%.There are some researches show the administration of consumer garbage compost can significantly improve Chinese Cabbage Yield.Research finds to utilize
Consumer garbage compost plants tea tree as matrix, than control group volume increase 7% or so.And it regard consumer garbage compost as compounded medium
Topsoil soils production turf is substituted, then is another effective means of garbage compost application.Using consumer garbage compost as material of main part
To cultivate lawn plant, experiment prove compounded medium used can culturing turf, combination property is stronger with soil compared with, respectively applies
Ecological performance such as Weeds distribution and water saving etc. are functional；By studying rye grass and Festuca Arundinacea to being combined domestic waste heap
The Eco response of fertilizer ground substance show that soil is substituted with consumer garbage compost has certain development of resources potentiality.
But due to the most municipal refuse broad categories of China and unprocessed, many Waste ammunitions and life rubbish
Rubbish is stacked jointly, causes content of beary metal in consumer garbage compost higher, and can arrive soil and groundwater with rainfall diafiltration
In, cause the heavy metal pollution of soil；Meanwhile, the biologically effective part of heavy metal may cause weight in the plant of soil surface
Tenor is higher, and is assembled by food chain in human body, and significant damage has been carried out to human body health care belt.
Someone using romaine lettuce as real plant by having found that the administration of compost has obvious production-increasing function, but plant to its yield
In-vivo heavy metal content increases therewith.Madrid etc. have studied continuous accumulated using garbage compost to heavy metal in soil and biological
The influence of available heavy metals content, as a result finds, continuous to continue to raise using garbage compost heavy metal in soil content, and
Biological effectiveness content of beary metal is also with rise.Heavy metal in the garbage compost heavy metal biological more intrinsic than in soil is effective
Property it is higher, plant be easier utilize.There are some researches show find the content of Cr, Cd in corn kernel with compost applied amount in an experiment
Increase and increase, amplification reaches 38.6% -450% compared with the control.Someone studies shadow of the compost to Accumulation of heavy metals in wheat body
Ring and find, the heavy metal accumulation amount in wheat body is same with compost consumption into positive correlation.Therefore, producing fertilizer from refuse in daily life due to
The enrichment of plant heavy metal is also increased while plant strain growth is promoted, the extensive use of consumer garbage compost is limited.
The extensive use of agricultural chemicals, is that the Agriculture Production of countries in the world is made that tremendous contribution.China is as agriculture big
State has promoted pesticide industry from scratch until growing and being formed the system of a cooperative development；The use of agricultural chemicals is promoting me
State's Agriculture Production.The various agricultural chemicals such as herbicide are widely used in agricultural or planting lawn industry.While consumer garbage compost
Also often as lawn matrix or it is applied to using in the form of organic fertilizer in farmland.Although itself there is an a variety of higher concentration huge sum of moneys
Category, such as Cd, Cr, Cu, Pb and Zn.Regulation and control one so are carried out to the heavy metal in consumer garbage compost using agricultural chemicals thing, to life
The safe utilization of garbage compost living has great importance.Up to the present, to ecology of the organic medicament such as herbicide to soil
Study relative maturity.This technology can clearly enhance having for producing fertilizer from refuse in daily life heavy metal by the herbicide of various concentrations
Imitate the purpose of state.And consumer garbage compost is better than the combination property of soil by it, good water saving and Weeds distribution are ecological
Performance is substituted topsoil soils production turf as compounded medium, is one of effective means of garbage compost application.But for grinding
Study carefully herbicide and the also fresh road of technology for repairing composting substrate heavy-metal composite pollution is cooperateed with lawn.
The content of the invention
The main object of the present invention is observed by adding organic medicament by taking Siduron as an example into lawn composting substrate
Its heavy metal in plant above ground biomass, compost heavy metal in the enrichment condition of Plant aboveground and under ground portion and to drenching
The influence of content of beary metal in solution.Major significance is to provide technology branch for Siduron collaborations repairing heavy metal pollution matrix
Support.
The invention discloses following technology contents to achieve the above object：
Applications of the Siduron in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost.Wherein described reinforcing grass
Level ground grass extracts heavy metal from consumer garbage compost and refers to seeing by adding Siduron10-20mmol/kg into lawn composting substrate
Examine its heavy metal in plant above ground biomass, compost heavy metal in the enrichment condition of Plant aboveground and under ground portion and right
The influence of content of beary metal in leaching liquor.Its assay method is：
（1）Using pvc pipe Φ=3cm, h=25cm, every pvc pipe lower end is bound up with gauze, and loads the sand that 10g crosses 1mm sieves
Son and 190g air-dry consumer garbage compost that is rear and crossing 2mm sieves；0.3g, which is sprinkled, in each pvc pipe shifts to an earlier date the high sheep that 24h soaked
Thatch seed, pours all pvc pipes with running water sooner or later daily, adjusts water content using weight method, makes moisture in composting substrate
Content reaches maximum water-holding capacity 60% and keeps constant, and indoor temperature and relative humidity is respectively 16-22 DEG C, 36-57%, illumination
Intensity is 450-700 μm of ol.m-2.s-1；
（2）Respectively by water of the 40ml according to 10mmol/kg and the 20mmol/kg Siduron matched after normal culture 30d
Solution is added in the composting substrate of turf establishment system, is cradled after reserving 1cm after 15d；Aerial part under cradling is placed in
Dry to weight and weigh in 80 °C of baking oven；
（3）Cradle latter 2nd day and respectively slowly continuously pour 40 mL artificial rainwater in each pvc pipe, often afterwards
7d is eluted once, three times altogether；Percolate is collected in ttom of pipe and volume is determined, and the percolate of collection is filtered and 4 DEG C are stored in
Refrigerator in treat further analysis；
（4）After elution terminates, under ground portion is dug out, is cleaned, dried with distilled water, aerial part, underground are measured respectively
Part content of beary metal and leaching liquor content of beary metal.
Turfgrass of the present invention extracts heavy metal from consumer garbage compost and refers to Siduron increase Festuca Arundinacea grounds and root
The enrichment of portion's heavy metal, its Siduron addition is：20mmol/kg.Described heavy metal is referred to：Cr, Cu and Pb.
More detailed description of the present invention is as follows：
1 develops materials and methods
1.1 experiment material
Choose and be used as matrix purchased from the consumer garbage compost of Tianjin little Dian garbage composts treatment plant.By rubbish heap before experiment
The bulk debris such as plastic sheeting, brick and tile, stone and glass in fertilizer are removed.After air-drying, 2 mm sieves are crossed, it is standby.Compost physics and chemistry
Matter is：PH 7.62, the gkg of the content of organic matter 221.25-1, the full gkg of nitrogen 13.48-1, the gkg of available phosphorus 0.078-1, C/
N is 8.37, the mLg of saturation moisture content 0.76-1, the gmL of unit weight 0.85-1；Heavy metal（Cd、Cr、Cu、Pb、Zn）Content is distinguished
For 1.97,67.00,238.73,172.11 and 496.38 mgkg-1.Lawn plant selects Festuca Arundinacea（Festuca arundinacea L.）.
Siduron (Tupersan) is turf herbicides special, and chemical name is N- (2- methylcyclohexyls)-N- phenylureas,
Molecular formula is C14H20N2O, relative molecular mass is 232.32.Structural formula is as follows：
Siduron is purchased from the safe ornamental plant protection technique research institute in Zhengzhou City lawn used in this experiment, and purity is 99.5%
Analysis it is pure.
The preparation of 1.2 artificial rainwater
Simulating natural condition descending water washes away influence to matrix environment, according to investigation, whole day Jinshi City Precipitation pH scope
For 4.00-8.24, year average be 5.59, belong to acid precipitation.This experiment (NH4)2SO4、Na2SO4、K2SO4、MgSO4、Ca
(NO3)2、Mg(NO3)2、H2SO4Make SO4 2-、NO3-、Cl-、NH+、Mg2+、Ca2+、K+、Na+Concentration is respectively 14.96,6.54,
1.68th, 3.71,0.82,1.38,0.64 and 0.78 mgL-1Rainwater, and with HCl allotment pH be 5.59, in case making during leaching
With.
1.3 experimental design
Test chamber is pvc pipe（Φ=3cm, h=25cm）, every pvc pipe lower end binds up with gauze, loads 10g and cross 1mm sieves
Sand and 190g air-dry after and cross 2mm sieve consumer garbage compost；0.3g, which is sprinkled, in each pvc pipe shifts to an earlier date what 24h soaked
Tall fescue seed, pours all pvc pipes with running water sooner or later daily, adjusts water content using weight method, makes in composting substrate
Moisture reaches maximum water-holding capacity 60% or so and keeps constant.Indoor temperature and relative humidity is respectively 16-22 DEG C, 36-
57%, intensity of illumination is 450-700 μm of ol.m-2.s-1.After normal culture 30d respectively by 40ml according to 10mmol/kg and
The aqueous solution for the Siduron that 20mmol/kg has been matched is added in the composting substrate of turf establishment system, is reserved after 15d after 1cm
Cradle；Aerial part under cradling is placed in and dries to weight and weighs in 80 °C of baking oven.
Cradle latter 2nd day and respectively slowly continuously pour 40 mL artificial rainwater in each pvc pipe, afterwards per 7d
Elute once, three times altogether；Percolate is collected in ttom of pipe and determines volume.By the percolate of collection Whatman No.1 test paper
Filter and be stored in 4 DEG C of refrigerator and treat further analysis.After elution terminates, under ground portion is dug out, is cleaned, dried with distilled water
It is dry, aerial part, under ground portion content of beary metal and leaching liquor content of beary metal are measured respectively, and every group of processing sets 3 weights
It is multiple.
1.4 Analysis of Heavy Metals
The measure of content of beary metal：Use nitric acid：Perchloric acid：Sulfuric acid（8∶1∶1）The 0.15g weighed is done at 120-140 DEG C
After being cleared up under careless sample, resulting solution is settled to 25 mL with distilled water；Leacheate measures 5 mL HNO3And HClO4In 120-
Cleared up under 140 °C, resulting solution distilled water constant volume to 50 mL.Experiment agents useful for same is to analyze pure, 2 molL-1Nitric acid
With distilled water rinse 3 times after cleaning vessel used, then dried in fume hood.Filtrate is filtered through filter paper.Finally utilize
TAS-990 atomic absorption spectrophotometers determine heavy metal in digestive juice（Cu, Cd, Cr, Pb and Zn）Content.
1.5 data processing
Data are all the average value and standard deviation of 3 repetitions in text, and the data obtained is carried out using the softwares of SPSS 11.7
Compare the single factor test ANOVA statistical analyses in average.
2 development results are analyzed
Influence of the 2.1 organic matter medicaments to Festuca Arundinacea ground biomass
Influence after addition Siduron to Festuca Arundinacea ground biomass is shown in Table 1.The Siduron of various concentrations is to Festuca Arundinacea
Growth play inhibitory action, each treatment group Festuca Arundinacea biomass is below control group.Treatment group fresh weight and dry weight are with compareing
Group is compared to there is significant difference, and the maximum difference of fresh weight part reaches comparison in 10mmol/kg Siduron treatment group
According to reducing 47.50% in group.Different disposal group is compared discovery, after the Siduron of addition various concentrations, high concentration
Siduron treatment groups in Festuca Arundinacea fresh weight and dry weight be improved compared with low concentration, fresh weight part middle and high concentration
Siduron adds 10.64% respectively compared with low concentration；Also there is 2.4% raising dry weight part equally compared with low concentration.
Influences of the table 1Siduron to composting substrate Festuca Arundinacea ground biomass（g/dm2）
Influences of 2.2 Siduron to Festuca Arundinacea aerial part content of beary metal and enriching quantity
Table 2 represents influences of the addition Siduron to Festuca Arundinacea aerial part content of beary metal.Compared with the control, do not exist together
Content of beary metal in reason group is improved.Wherein, 10mmol/kg Siduron treatment group makes Pb and Zn reach maximum,
It is 1.7 times and 4.2 times of control group.The maximum of heavy metal Cr reaches in 20mmol/kg Siduron treatment group, than control
Group adds 51.42%.In Siduron treatment groups, in addition to Pb and Zn, Cd, Cr and Cu content are significantly high under high concentration treatment group
In low concentration treatment group.
Influences (μ g/g) of the Siduron of table 2 to Festuca Arundinacea aerial part content of beary metal
Influence (μ g/dm of the medicament of table 3 to Festuca Arundinacea aerial part heavy metal accumulation amount2)
Influences of 2.3 Siduron to Festuca Arundinacea root content of beary metal and enriching quantity
Siduron addition makes Festuca Arundinacea root content of beary metal be above control group.Data display in table 4 is respectively handled
Content of the middle heavy metal Pb in Festuca Arundinacea root has the maximum level of significant difference, wherein Cd, Zn and Cu compared with control group
Reached respectively in 20mmol/kg Siduron treatment groups.Cd and Zn in 20mmol/kg Siduron treatment groups enriching quantity with it is right
It is the most notable according to group otherness, add 80.47% and 54.56% than control respectively.
Influences (μ g/g) of the Siduron of table 4 to Festuca Arundinacea root content of beary metal
Influence (μ g/dms of the table 5Siduron to Festuca Arundinacea root heavy metal accumulation amount2)
Influences of 2.4 Siduron to heavy metal concentration in percolate and content
The expression of table 6 is the influence of that Siduron heavy metals heavy metal concentration in percolate.Each group of processing with it is right
Photograph is higher than control group than equal conspicuousness.Wherein Cr, Cu and Pb enriching quantity reach in 20mmol/kg Siduron treatment groups
Maximum, 4.56 times, 2.5 times and 39.74% are added than control group；Cd enriching quantities ratio in 10mmol/kg Siduron treatment groups
Control adds 2.31 times.Influences of the Siduron to total metalses in percolate is shown in Table 7.Each treatment group compared with control group,
Content of beary metal has conspicuousness enhancing.Cr, Cu and Pb maximum are in 20mmol/kg Siduron treatment groups in percolate
In reach, add 6.43 times, 3.71 times and 0.86 times than control group respectively；In the diafiltration of 10mmol/kg Siduron treatment groups
Cd content adds 20.71 times than control in liquid.
As a result show, the Siduron of addition is remarkably reinforced a huge sum of money in the ion activity of heavy metal and migration ratio, with compost
Category increases content of beary metal in percolate after occurring coupling effect, and this heavy metal pollution amelioration is significant.
Influence (μ g/mL) of the organic matter of table 6 to heavy metal concentration in percolate
Influences (ug) of the table 7Siduron to total metalses in percolate
3 develop conclusion
Siduron addition reduces the ground biomass of Festuca Arundinacea, with control group significant difference；Siduron is to high sheep
Thatch aerial part content of beary metal and enriching quantity are improved.Organic Acids on Heavy Metal Festuca Arundinacea root enrichment condition with
Aerial part is identical, there is conspicuousness raising compared with the control, the Siduron of addition be remarkably reinforced heavy metal ion activity and
Heavy metal increases content of beary metal in percolate after occurring coupling effect in migration ratio, with compost, the pollution of this heavy metal
Repair significant.
Embodiment
In order to more fully explain the implementation of the present invention, there is provided following preparation method embodiments.These embodiments are only
Only it is to explain rather than limitation the scope of the present invention.Needing special instruction is：Reagent used in the present invention is commercially available.
Embodiment 1
Assay method is：
（1）Using pvc pipe Φ=3cm, h=25cm, every pvc pipe lower end is bound up with gauze, and loads the sand that 10g crosses 1mm sieves
Son and 190g air-dry consumer garbage compost that is rear and crossing 2mm sieves；0.3g, which is sprinkled, in each pvc pipe shifts to an earlier date the high sheep that 24h soaked
Thatch seed, pours all pvc pipes with running water sooner or later daily, adjusts water content using weight method, makes moisture in composting substrate
Content reaches maximum water-holding capacity 60% and keeps constant, and indoor temperature and relative humidity is respectively 16 DEG C, 36%, intensity of illumination is
450 μmol.m-2.s-1；
（2）Respectively by water of the 40ml according to 10mmol/kg and the 20mmol/kg Siduron matched after normal culture 30d
Solution is added in the composting substrate of turf establishment system, is cradled after reserving 1cm after 15d；Aerial part under cradling is placed in
Dry to weight and weigh in 80 °C of baking oven；
（3）Cradle latter 2nd day and respectively slowly continuously pour 40 mL artificial rainwater in each pvc pipe, often afterwards
7d is eluted once, three times altogether；Percolate is collected in ttom of pipe and volume is determined, and the percolate of collection is filtered and 4 DEG C are stored in
Refrigerator in treat further analysis；
（4）After elution terminates, under ground portion is dug out, is cleaned, dried with distilled water, aerial part, underground are measured respectively
Part content of beary metal and leaching liquor content of beary metal.
Embodiment 2
Assay method is：
（1）Using pvc pipe Φ=3cm, h=25cm, every pvc pipe lower end is bound up with gauze, and loads the sand that 10g crosses 1mm sieves
Son and 190g air-dry consumer garbage compost that is rear and crossing 2mm sieves；0.3g, which is sprinkled, in each pvc pipe shifts to an earlier date the high sheep that 24h soaked
Thatch seed, pours all pvc pipes with running water sooner or later daily, adjusts water content using weight method, makes moisture in composting substrate
Content reaches maximum water-holding capacity 60% and keeps constant, and indoor temperature and relative humidity is respectively 22 DEG C, 57%, intensity of illumination is
700 μmol.m-2.s-1；
（2）Respectively by water of the 40ml according to 10mmol/kg and the 20mmol/kg Siduron matched after normal culture 30d
Solution is added in the composting substrate of turf establishment system, is cradled after reserving 1cm after 15d；Aerial part under cradling is placed in
Dry to weight and weigh in 80 °C of baking oven；
（3）Cradle latter 2nd day and respectively slowly continuously pour 40 mL artificial rainwater in each pvc pipe, often afterwards
7d is eluted once, three times altogether；Percolate is collected in ttom of pipe and volume is determined, and the percolate of collection is filtered and 4 DEG C are stored in
Refrigerator in treat further analysis；
（4）After elution terminates, under ground portion is dug out, is cleaned, dried with distilled water, aerial part, underground are measured respectively
Part content of beary metal and leaching liquor content of beary metal.
Claims (3)
- Applications of the 1.Siduron in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost；Described reinforcing turfgrass is carried Heavy metal from consumer garbage compost is taken to refer to that to observe its right by adding Siduron10-20mmol/kg into lawn composting substrate Heavy metal in plant above ground biomass, compost heavy metal in the enrichment condition of Plant aboveground and under ground portion and to leaching liquor The influence of middle content of beary metal.
- 2. the application described in claim 1, wherein the turfgrass, which extracts heavy metal from consumer garbage compost, refers to that Siduron increases Increase enrichment of the fescue grass on the ground with root heavy metal, its Siduron addition is：20mmol/kg；What described heavy metal referred to It is：Cr, Cu and Pb.
- 3. the application described in claim 1, its assay method is：（1）Using pvc pipe Φ=3cm, h=25cm, every pvc pipe lower end is bound up with gauze, load 10g cross 1mm sieve sand and 190g air-dries consumer garbage compost that is rear and crossing 2mm sieves；0.3g, which is sprinkled, in each pvc pipe shifts to an earlier date the Festuca Arundinacea kind that 24h soaked Son, pours all pvc pipes with running water sooner or later daily, adjusts water content using weight method, makes moisture in composting substrate Reach maximum water-holding capacity 60% and keep constant, indoor temperature and relative humidity is respectively 16-22 DEG C, 36-57%, intensity of illumination For 450-700（2）Respectively by the aqueous solution of the 40ml according to 10mmol/kg and the 20mmol/kg Siduron matched after normal culture 30d It is added in the composting substrate of turf establishment system, is cradled after reserving 1cm after 15d；Aerial part under cradling is placed in 80 °C Baking oven in dry to weight and weigh；（3）Cradle latter 2nd day and respectively slowly continuously pour 40 mL artificial rainwater in each pvc pipe, drenched afterwards per 7d Wash once, three times altogether；Percolate is collected in ttom of pipe and volume is determined, and the percolate of collection is filtered and 4 DEG C of ice is stored in Further analysis is treated in case；（4）After elution terminates, under ground portion is dug out, is cleaned, dried with distilled water, aerial part, under ground portion are measured respectively Content of beary metal and leaching liquor content of beary metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226856.5A CN104841692B (en) | 2015-05-07 | 2015-05-07 | Application of the Tupersan in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510226856.5A CN104841692B (en) | 2015-05-07 | 2015-05-07 | Application of the Tupersan in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104841692A CN104841692A (en) | 2015-08-19 |
| CN104841692B true CN104841692B (en) | 2017-10-10 |
Family
ID=53841891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510226856.5A Expired - Fee Related CN104841692B (en) | 2015-05-07 | 2015-05-07 | Application of the Tupersan in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104841692B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679057A (en) * | 2020-06-11 | 2020-09-18 | 中国农业大学 | Leaching test device and test method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280032C (en) * | 2005-05-20 | 2006-10-18 | 天津师范大学 | Method for repairing urban house refuse compost heavy-metal composite pollution by synergistic lawn plant |
| JP2007090301A (en) * | 2005-09-30 | 2007-04-12 | Teijin Fibers Ltd | Method for purifying heavy metal contaminated soil |
| CN100417630C (en) * | 2006-12-05 | 2008-09-10 | 天津师范大学 | Spray washing method for removing heavy metal from domestic garbage compost |
| CN101597182B (en) * | 2009-07-06 | 2011-05-11 | 天津师范大学 | Application of ammonium sulfate mixed liquor in extracting heavy metals from waste composts with lawn plants |
| CN101596541B (en) * | 2009-07-06 | 2011-01-05 | 天津师范大学 | Method for remedying heavy metals in domestic waste leakage solution |
| CN102630471B (en) * | 2012-05-04 | 2014-07-02 | 天津师范大学 | Method for restoring heavy metal in garbage compost by using impermeable layer |
| CN103264046B (en) * | 2013-05-15 | 2014-11-05 | 天津师范大学 | Method for remediation of sludge leacheate heavy metals by use of lolium perenne |
-
2015
- 2015-05-07 CN CN201510226856.5A patent/CN104841692B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104841692A (en) | 2015-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104957009B (en) | Regulate and control the method for turfgrass heavy metal accumulation using OTC and CNT interlayer | |
| Chen et al. | Effect of cadmium on nodulation and N2-fixation of soybean in contaminated soils | |
| Dai et al. | Negative and positive contributions of arbuscular mycorrhizal fungal taxa to wheat production and nutrient uptake efficiency in organic and conventional systems in the Canadian prairie | |
| CN104838996B (en) | Regulate and control the method for turfgrass heavy metal accumulation using chlorine pyrazothion and CNT interlayer | |
| CN104904574B (en) | Regulate and control the method for turfgrass heavy metal accumulation using Tupersan and CNT interlayer | |
| CN102962250A (en) | Method for remedying cadmium (Cd) and lead (Pb) polluted soil by alum pulp in situ | |
| CN103250485B (en) | Method for comprehensively controlling cadmium pollution of rice by utilizing modifier and agricultural technology | |
| CN107695088A (en) | The method that As Cd combined pollution agricultural land soils are repaired using super enriching plant biomass carbon combined system | |
| CN106734161A (en) | A kind of APP combined remediation methods for heavy metal pollution reparation of ploughing | |
| Do Nascimento et al. | Prospects of using biomass of N2-fixing cyanobacteria as an organic fertilizer and soil conditioner | |
| CN108587644A (en) | A kind of Acid Paddy Soils modifying agent | |
| CN108337951A (en) | A method of reducing sloping upland water and soil and soil nitrogen loss amount | |
| Li et al. | Soil depth determine the ecological stoichiometry of soil aggregates after returning ancient rice terraces to forest | |
| CN105855277A (en) | Preparation method of clay mineral material and method for reducing bio-availability of heavy metal in soil and water body | |
| Subbian et al. | Cropping systems effects on soil quality in semi-arid tropics | |
| CN104841692B (en) | Application of the Tupersan in terms of reinforcing turfgrass extracts heavy metal from consumer garbage compost | |
| Messiga et al. | Combinations of cover crop mixtures and bio-waste composts enhance biomass production and nutrients accumulation: a greenhouse study | |
| CN105038804B (en) | Heavy metal deactivator and its preparation and reparation cadmium, the method for lead-contaminated soil | |
| CN107557313A (en) | A kind of composite conditioner for being passivated farmland cadmium pollution and promoting increasing production of rice | |
| CN104844281B (en) | Application of the Tupersan in terms of consumer garbage compost Compound Heavy Metals form is regulated and controled | |
| CA2794140A1 (en) | Rhizobium tropici produced biopolymer salt | |
| CN103262732B (en) | A kind of method adopting air-dry mud to improve turfgrass plant defence enzyme activity | |
| CN109721423A (en) | A kind of pakchoi is compound fertilizer dedicated and its preparation method and application | |
| Amoding et al. | Effectiveness of crop‐waste compost on a Eutric Ferralsol | |
| CN104889151B (en) | Strengthen the method for turfgrass extraction heavy metal from consumer garbage compost using OTC |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20210507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |