CN104138897A - Reinforcement restoration method using hyperaccumulation restoration plant for restoration of cadmium contaminated soil - Google Patents
Reinforcement restoration method using hyperaccumulation restoration plant for restoration of cadmium contaminated soil Download PDFInfo
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- CN104138897A CN104138897A CN201310167548.0A CN201310167548A CN104138897A CN 104138897 A CN104138897 A CN 104138897A CN 201310167548 A CN201310167548 A CN 201310167548A CN 104138897 A CN104138897 A CN 104138897A
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Abstract
The invention relates to a method for phytoremediation of cadmium contaminated soil, in particular relates to a reinforcement restoration method using a hyperaccumulation restoration plant for restoration of the cadmium contaminated soil. The hyperaccumulation restoration plant is sowed in ridge tillage and row planting manner in the cadmium contaminated soil in spring, the sowing dosage is 1.8-2.2 grams of seeds in every square metre, the row spacing is 48 to 52 meters, after seedling emergence, when the cadmium hyperaccumulation restoration plant height is about 20cm, levo reduced form glutathione is applied, the applying dose is 0.1-1.0mmol / kg soil, and the applying concentration per kg soil is measured by using the weight of the soil with the soil layer thickness of 0-20 cm of the soil layer surface of the contaminated soil.
Description
Technical field
The present invention relates to the method for the phytoremediation of cadmium pollution soil, specifically a kind of strengthening repair method that utilizes super enrichment rehabilitation plant cadmium pollution soil repair.
Background technology
According to China environmental aspect communique report in 1997, China ploughs had more than 1,000 ten thousand hm2 to be subject to multiple pollution in various degree, and its area accounts for 7.34% of cultivated area then.2000 to the whole nation 300,000 hm
2the sample investigation of Basic Farmland Conservation Zones soil harmful heavy metal show, heavy metals exceeding standard rate reaches 12.1%; There is 891 of agricultural environment pollution accidents in 23 provinces (urban district), polluted agricultural land 40,000 hm altogether
2, direct economic loss reaches 2.2 hundred million yuan, is seriously restricting the national economic development and is endangering people's physical and mental health.Variation along with pollutant emission, complicated and frequentization, the contaminated degree of major receptors soil of pollutant increases the weight of day by day, the complexity that contaminated soil is repaired and refractory rationality feature be outstanding all the more (document 1:Paton GI also, Viventsova E, Kumpene J, et al.2006.An ecotoxicity assessment of contaminated forest soils from the Kola Peninsula.Science of the Total Environment, 355 (13): 106-117), wherein the pollution of heavy metal-organic composite is more common pollution type, as Cd-polycyclic aromatic hydrocarbon (Polycyclic aromatic hydrocarbons, PAHs) combined pollution.Cadmium can be by reducing photosynthesis of plant when low concentration, produce the approach such as oxidative stress suppress plant growth, to plant produce toxic action (document 2:Schill RO,
2003.Laboratory simulation of a mining accident:acute toxicity hsc/hsp70response and recovery from sress in Gammarus fossarum (Crustacea smphipoda) exposed to a pulse of cadmium.Biometals, 16:391-401), and to some extent humans and animals is produced to toxic action, also can bring out canceration; And PAHs is a class persistence organic pollutant, biology is had to chronic toxicity and carcinogenic, teratogenesis, mutagenicity.Because Cd, PAHs show as in soil environment, have disguise and chronicity, cause the difficulty of repairing this type of combined contamination soil to strengthen, seeking efficient, safe, economic recovery technique becomes the realistic problem of needing solution badly.Phytoremediation technology have the incomparable expense of physics, chemical repair method cheap, be difficult for causing secondary pollution, beautify the environment, be easy to as advantages such as society are accepted; become extremely potential recovery technique (document 3:Chaney RL; Malik M; Li YM.1997.Phytoremediation of soil metals.Current Opinions in Biotechnology, 8:279-284; Brooks RR, Chambers MF, Nickls L J, et al.1998.Phytomining.Trends in Plant Science, 3 (9): 359-362).The phytoremediation of heavy-metal contaminated soil is mainly to be removed and be used for realizing (document 4: Wei Shuhe by the excess of super enriching plant or enriching plant, Zhou Qixing, Pavel V.Koval, Galina A.Belogolova. Phytoremediation of organic pollutants-contaminated environment: A research review. ecological magazine .2006,25 (6): 716-721); For organic contamination as polycyclic aromatic hydrocarbon be mainly to utilize the degradation of plant rhizosphere circle microorganism to complete (document 4: Wei Shuhe, Zhou Qixing, Pavel V.Koval, Galina A.Belogolova. Phytoremediation of organic pollutants-contaminated environment: A research review. ecological magazine .2006,25 (6): 716-721).But it is restricted with some that phytoremediation technology also exists some defects, as being very easily subject to, the own biological characteristics of environmental condition and plant affects, repairing efficiency is long etc.Therefore need to adopt some strengthening reclamation activities to improve the efficiency of phytoremediation, to improving reference is provided early for this technology.
Summary of the invention
The object of the present invention is to provide a kind of strengthening repair method that utilizes super enrichment rehabilitation plant cadmium pollution soil repair.
For achieving the above object, the technical solution used in the present invention is:
Utilize a strengthening repair method for super enrichment rehabilitation plant cadmium pollution soil repair,
Plant Cd-hyperaccumulator in the mode of ridge culture drilling spring on by the soil of cadmium pollution, application rate is every square metre of 1.8-2.2 gram seed, line-spacing is 48-52 rice, after emerging, when the about 20cm of Cd-hyperaccumulator plant height, apply left-handed reduced glutathione, applying dosage is 0.1-1.0mmol/kg soil.
When described left-handed reduced glutathione is used, left-handed reduced glutathione powder is mixed with soil, before light rain arriving, evenly spread fertilizer over the fields in soil surface, or left-handed reduced glutathione and water are uniformly dissolved and are spread fertilizer over the fields in soil surface.
When Cd-hyperaccumulator is ripe, gather in the crops whole strain plant, band is eradicated and is removed, and the Cd-hyperaccumulator after results is transferred to other place and focuses on or carry out resource processing and process.
Described Cd-hyperaccumulator is black nightshade
Referring to the first tenday period of a month in late April to May described spring, is that late July is to early August during results black nightshade.Because phosphate fertilizer has to cadmium the extraction reparation that chelating precipitation is not utilized cadmium, so while planting Cd-hyperaccumulator black nightshade spring, bottom application in spring be take and executed phosphate fertilizer as 25-35 kilogram/667 meters
2be advisable; Referring to the first tenday period of a month in late April to May described spring, is that late July is to early August during results black nightshade.
The present invention utilizes super enriching plant from cadmium pollution soil, to take away a large amount of cadmiums, makes contaminated soil repaired.
It is that every kg soil is with the soil weight metering of the 0-20 centimetre of dark soil thickness in contaminated soil soil layer surface that described left-handed reduced glutathione applies concentration.
The present invention has advantages of:
The present invention's operation is relatively simple, and the hardening agent cost applying is lower, and repairing effect is better, to soil, also can not produce secondary pollution, increases in addition the effect of phytomass simultaneously.
The specific embodiment
Field experiment is repaired in the strengthening of embodiment cadmium pollution soil
1. test site and step
In Zhang Shi irrigated area, Shenyang, carry out relevant field experiment, total Test is tested approximately 50 meters of the gross areas
2.This ground physiochemical properties of soil: pH6.5, organic carbon 20.86g/Kg, full nitrogen 1.32g/Kg, full phosphorus 0.64g/Kg, available nitrogen 179.63mg/Kg, rapid available phosphorus 2.78mg/Kg.Top layer (0-20 centimetre) cadmium content mean value is 0.65mg/Kg, with China's standard of soil environment quality secondary standard, belongs to cadmium pollution soil.
Late April starts test, every 667 meters of soil
230 kilograms, bottom application ammonium sulfate.Sowing at 4 the end of month, soaks seed 12 hours with 0.1% hydrogen peroxide before sowing.Black nightshade, apply the left-handed reduced glutathione of low dosage (0.1-1.0mmol/kg) seedling stage, first with a certain amount of soil and reagent mix, then evenly spread fertilizer over the fields in soil surface.Be selected in and use the previous day of spotting.After black nightshade maturation, measure soil and plant sample, to detect the repairing effect of contaminated soil simultaneously.Adopt diagonal 5 point sampling methods.
2. sample analysis
A plant sample part for results is for the mensuration of overground part content of beary metal, and remainder root division, stem, leaf, fruit 4 parts, fully rinse with running water respectively, and then with deionized water rinsing, drain moisture, the 30min that completes at 105 ℃ then dries to constant weight at 70 ℃ in baking oven.Plant sample after oven dry pulverizes and sieves standby, and air-dry rear mistake 100 mesh sieves of pedotheque are standby.Plant and pedotheque all adopt HNO
3-HClO
4method digestion (the two volume ratio is 3:1), atomic absorption spectrophotometer method is measured the content of Cd, and atomic absorption spectrophotometer is the 180-80 of Hitachi, and the absorbing wavelength of cadmium is 228.8.The mensuration of the basic physical and chemical such as the content of organic matter of soil adopts conventional assay method.
3 data statistics
The data that obtain are carried out statistical analysis with Microsoft Excel and SPSS16.0, utilize Duncan newly to answer range test and carry out significance test of difference (p<0.05).
4. result
Result of the test shows (table 1), through black nightshade and the Chinese Cabbage in a season, and cadmium content average out to 0.68mg/kg in upper soll layer, the extraction repair rate of cadmium is 8.78%;
Sampled point cadmium content (mg/kg) in table 1 field experiment
| Sampled point | 1 | 2 | 3 | 4 | 5 | On average |
| Before Cadmium in Soil is repaired | 0.62 | 0.71 | 0.64 | 0.65 | 0.68 | 0.66 |
| After Cadmium in Soil is repaired | 0.58 | 0.62 | 0.58 | 0.62 | 0.61 | 0.60 |
Claims (6)
1. utilize a strengthening repair method for super enrichment rehabilitation plant cadmium pollution soil repair, it is characterized in that:
Plant Cd-hyperaccumulator in the mode of ridge culture drilling spring on by the soil of cadmium pollution, application rate is every square metre of 1.8-2.2 gram seed, line-spacing is 48-52 rice, after emerging, when the about 20cm of Cd-hyperaccumulator plant height, apply left-handed reduced glutathione, applying dosage is 0.1-1.0mmol/kg soil.
2. by the strengthening repair method of the super enrichment rehabilitation plant of utilization claimed in claim 1 cadmium pollution soil repair, it is characterized in that: when described left-handed reduced glutathione is used, left-handed reduced glutathione powder is mixed with soil, before light rain arrives, evenly spread fertilizer over the fields in soil surface, or left-handed reduced glutathione and water are uniformly dissolved and are spread fertilizer over the fields in soil surface.
3. by the strengthening repair method of the super enrichment rehabilitation plant of utilization claimed in claim 1 cadmium pollution soil repair, it is characterized in that: when Cd-hyperaccumulator is ripe, gather in the crops whole strain plant, band is eradicated and is removed, and the Cd-hyperaccumulator after results is transferred to other place and focuses on or carry out resource processing and process.
4. by the strengthening repair method of the super enrichment rehabilitation plant of the utilization cadmium pollution soil repair described in claim 1 or 3, it is characterized in that: described Cd-hyperaccumulator is black nightshade.
5. by the strengthening repair method of the super enrichment rehabilitation plant of utilization claimed in claim 1 cadmium pollution soil repair, it is characterized in that: referring to the first tenday period of a month in late April to May described spring, is that late July is to early August during results black nightshade.
6. by the strengthening repair method of the super enrichment rehabilitation plant of utilization claimed in claim 1 cadmium pollution soil repair, it is characterized in that: it is that every kg soil is with the soil weight metering of the 0-20 centimetre of dark soil thickness in contaminated soil soil layer surface that described left-handed reduced glutathione applies concentration.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104472175A (en) * | 2014-12-01 | 2015-04-01 | 四川农业大学 | Method for improving cadmium-contaminated orchard soil remediation capability of solanum photeinocarpum |
| CN111530919A (en) * | 2020-04-30 | 2020-08-14 | 上海交通大学 | Cadmium-arsenic combined polluted soil plant optimization restoration method based on black nightshade |
| CN113600609A (en) * | 2021-07-30 | 2021-11-05 | 山东省农业科学院 | Crop restoration method for reducing cadmium content in soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724184A (en) * | 2004-07-23 | 2006-01-25 | 中国科学院沈阳应用生态研究所 | A kind of method of utilizing the plant of Solanaceae cadmium pollution soil repair |
| CN101596545A (en) * | 2009-06-30 | 2009-12-09 | 哈尔滨理工大学 | The method of spraying and applying dioxan aminoethyl alcohol carboxylic ether on leaf face of morel to restore cadmium-polluted soil |
| CN101992208A (en) * | 2009-08-14 | 2011-03-30 | 中国科学院沈阳应用生态研究所 | Method for restoring and using vegetable field soil combinedly polluted by cadmium and polycyclic aromatic hydrocarbon |
-
2013
- 2013-05-08 CN CN201310167548.0A patent/CN104138897A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724184A (en) * | 2004-07-23 | 2006-01-25 | 中国科学院沈阳应用生态研究所 | A kind of method of utilizing the plant of Solanaceae cadmium pollution soil repair |
| CN101596545A (en) * | 2009-06-30 | 2009-12-09 | 哈尔滨理工大学 | The method of spraying and applying dioxan aminoethyl alcohol carboxylic ether on leaf face of morel to restore cadmium-polluted soil |
| CN101992208A (en) * | 2009-08-14 | 2011-03-30 | 中国科学院沈阳应用生态研究所 | Method for restoring and using vegetable field soil combinedly polluted by cadmium and polycyclic aromatic hydrocarbon |
Non-Patent Citations (5)
| Title |
|---|
| 张银秋等: "青鲜素与谷胱甘肽对万寿菊镉积累的影响", 《生态学杂志》 * |
| 彭向永等: "谷胱甘肽对小麦幼苗铜毒害的缓解作用及其与氮、硫、磷积累的相关性", 《农业环境科学学报》 * |
| 曾绍汉等: "谷胱甘肽与金属离子相互作用研究进展", 《中国公共卫生》 * |
| 蔡悦: "水稻耐镉的基因型差异及外源GSH缓解镉毒的机理研究", 《中国博士学位论文全文数据库 农业科技辑》 * |
| 马彦霞等: "外源谷胱甘肽对自毒作用下辣椒幼苗生长的影响", 《甘肃农业大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104472175A (en) * | 2014-12-01 | 2015-04-01 | 四川农业大学 | Method for improving cadmium-contaminated orchard soil remediation capability of solanum photeinocarpum |
| CN111530919A (en) * | 2020-04-30 | 2020-08-14 | 上海交通大学 | Cadmium-arsenic combined polluted soil plant optimization restoration method based on black nightshade |
| CN113600609A (en) * | 2021-07-30 | 2021-11-05 | 山东省农业科学院 | Crop restoration method for reducing cadmium content in soil |
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Application publication date: 20141112 |