CN101130195A - In-situ renovation method for biomass strengthen salt-alkali contaminated soil - Google Patents
In-situ renovation method for biomass strengthen salt-alkali contaminated soil Download PDFInfo
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- CN101130195A CN101130195A CNA2007101198594A CN200710119859A CN101130195A CN 101130195 A CN101130195 A CN 101130195A CN A2007101198594 A CNA2007101198594 A CN A2007101198594A CN 200710119859 A CN200710119859 A CN 200710119859A CN 101130195 A CN101130195 A CN 101130195A
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Abstract
The invention discloses a home position restoring method of biological reinforced alkaline polluted soil in the environmental restoring technique, which is characterized by the following: adding biological degradation bacteria in the alcaline polluted soil; using mechanic digging method to construct loose biological layer in the salt immersing course; blocking capillary phenomenon to avoid salt return phenomenon; improving the efficiency of water immersed salt; modifying the crumb structure and fertility of alcaline soil; restoring the planting ability of the soil with widely extending prospect in the pollution harnessing course.
Description
Technical field
The invention belongs to the environment remediation technology, particularly a kind of in-situ remediation method of biomass strengthen salt-alkali contaminated soil.
Background technology
Pollute in the salt-soda soil is one of common soil pollution type, and present domestic salt-soda soil has 0.45 hundred million mu approximately.Because the bad utilization of ploughing, the salinization of soil that China ploughs is very serious.At present the improvement in salt-soda soil is mainly contained several main methods of biological restoration of the water logging desalinization of soil by flooding or leaching, covering reduction evaporation capacity and salt affected soil.The water logging desalinization of soil by flooding or leaching is one of improvement method in salt-soda soil commonly used, but the accumulation of salt in the surface soil takes place traditional water logging desalinization of soil by flooding or leaching method easily; Covering reduction evaporation capacity has the good restraining effect to the salination process of soil, but can not effectively administer the salinized soil that has formed; And the biological restoration of salt affected soil is meant by salt-durable microbe and salt-tolerant plant salt affected soil is improved.Simultaneously, realize that by aggregate measures such as agricultural tillages the improvement in salt-soda soil also is the more method of using at present, but the salt affected soil governance efficiency is lower.
In the modification method in above-mentioned salt-soda soil, all there is an important problem, be exactly the generation of accumulation of salt in the surface soil phenomenon.Be accompanied by face of land evaporation of water, form the capillarity that is beneficial to the accumulation of salt in the surface soil in the thin solum.Deep water carries the deep layer salt ion simultaneously and turns back to soil surface by the surface of inverted-siphon effect arrival soil, and the accumulation of salt in the surface soil takes place.Covering reduces the inhibition accumulation of salt in the surface soil that soil evaporativeness can be to a certain degree, but effect is undesirable.Develop at present the capillary that utilizes mechanical method of turning over manually to cut off shallow soil formation and blocked the accumulation of salt in the surface soil.But the method that machinery is turned over is subject to the state of administering the salt-soda soil, and the efficient of the blocking-up accumulation of salt in the surface soil is low.
People such as G.Guo 2006 roll up on the 1st phase at Biosystems Engineering94 and publish an article, in the experiment of laboratory column simulation, make up the loosing soil layer apart from face of land 50cm place, and studied its influence to the accumulation of salt in the surface soil, the result shows the earth pillar that makes up the loosing soil layer, and the accumulation of salt in the surface soil has obtained obvious inhibition; Compare the earth pillar that does not make up the loosing soil layer, the water evaporates of shallow soil has also obtained inhibition, and the structure of weaker zone can play the effect of water conservation.Qiao Hailong published an article on " soil circular " in 2006, utilize maize straw to carry out the investigation of different coverage modes, experimental study shows, maize straw covers at soil 20cm place can form a capillary barrier layer, obviously reduce deep soil moisture evaporation capacity, reduced of the migration of deep soil salinity to the top layer.Both studies have shown that by make up weaker zone between soil shallow soil and deep soil, can effectively cut off the capillary that forms in the soil, the blocking-up accumulation of salt in the surface soil.But people's such as G.Guo method makes up the method complexity of weaker zone, is unfavorable for the large tracts of land popularization; Qiao Hailong has solved the problem that weaker zone makes up, but has not considered the secondary effect that the conversion of stalk in soil brings by cover maize straw at the 20cm place.
Living beings can generate organic materials such as humus by action of microorganisms in soil, the organic matter in the soil is kept soil aggregate, and the fertility of soil etc. all has important effect.In contaminated soil, the humus of soil all has loss to a certain degree, makes soil compaction degenerate, and has further increased the weight of pollution.And the plantation of normal soil crop helps the circulation of keeping of soil texture and humus.
Summary of the invention
The objective of the invention is provides a kind of in-situ remediation method of biomass strengthen salt-alkali contaminated soil at utilizing the water logging desalinization of soil by flooding or leaching to carry out the problem that exists in the governance process of salt-soda soil.It is characterized in that this method implementation step comprises:
1) selects salt-alkali contaminated arable land, build the cofferdam about high 30cm in the place on every side, stop effluxing of desalinization of soil by flooding or leaching water, prevent secondary pollution normal arable land;
2) before machinery is turned over, living beings such as the discarded stalk in agricultural production are added the biomass degradation bacterium, utilize microbial action realize living beings in soil to the conversion of humic acid, improve the crumb structure of salt-alkali contaminated soil, strengthen the fertility of contaminated soil;
3) with the living beings of step 2 interpolation biomass degradation bacterium, the method for turning over by machinery is the loose living beings layer of 3 ~ 15cm at dark 25 ~ 50cm place structure thickness quickly and easily, can effectively block the capillary of the accumulation of salt in the surface soil, can promote the efficient of the water logging desalinization of soil by flooding or leaching;
4) carry out the water logging desalinization of soil by flooding or leaching by the method for natural precipitation and man-made irrigation;
5) when face of land electrical conductivity is lower than 10ms/cm, thereby realize effective improvement in salt-soda soil by the plantation plant.
Described biomass degradation bacterium is made up of bacterium and fungi.Bacterium is the bacterium with cellulose degradation ability: belong to (Thermoanaerobacter) (state's congruence uses and the environmental organism journal 10 (2): 197-201,2004 recklessly) as hot anaerobic bacillus(cillus anaerobicus); Give birth to spore Cytophaga (Sporocytophaga) (Yu Shanshan etc. use and the environmental organism journal 12 (6): 854-856,2006); Pseudomonas (Pseudomonas sp.) (Jo C etc., FOODSCIENCE AND BIOTECHNOLOGY 13 (6): 712-718DEC 2004) etc., the bacterium addition is 10
5～10
10The CFU/Kg living beings; Fungi is a white-rot fungi, trichoderma, aspergillus etc., Tathagata is from the Phanerochaete chrysosporium (Phanerochaete chrysosporium) of white rot fungi, Trichoderma viride (Trichoderma viride) from trichoderma, trichoderma reesei (Trichoderma reeaei), koning trichodermas (Trichodermakoningli) etc. are from the Aspergillus glaucus (Aspergillus glaucus) of aspergillus, aspergillus niger (Aspergillus niger), aspergillus oryzae (Aspergillus terreus) etc. (above-mentioned bacterial classification all can available from Chinese common micro-organisms DSMZ).Addition is 20～100mgbiomass/Kg living beings.
Described living beings comprise the discarded object that produces in the agricultural production---agricultural crop straw; Papery class discarded object or cotton class discarded object that office produces.
Described plantation plant is a kind of in clover, wheat, the paddy.
The invention has the beneficial effects as follows the discarded object that utilizes in the agricultural production, the method for turning over by machinery makes up weaker zone quickly and easily between soil shallow soil and deep soil, can effectively block the capillary of the accumulation of salt in the surface soil.Utilize the biomass degradation bacterium of adding in the living beings simultaneously, realize the conversion of living beings in soil, converted product can effectively improve the crumb structure of salt-alkali contaminated soil, improves the fertility of salt-alkali contaminated soil.The plant plantation that rises to of the improvement of soil aggregate and fertility is laid a good foundation, and the present invention further finishes the plantation of back plant by the contaminated soil water logging desalinization of soil by flooding or leaching, thoroughly repair salt-alkali contaminated soil.The inventive method simple possible, raw material is easy to get, and very wide promotion prospect is arranged in the pollution control in salt-soda soil.
The specific embodiment
The invention provides a kind of in-situ remediation method of biomass strengthen salt-alkali contaminated soil.In salt-alkali contaminated soil, add the living beings of biomass degradation bacterium, the method of utilizing machinery to turn over makes up the loose living beings layer in the water logging desalinization of soil by flooding or leaching process, thereby the capillary accumulation of salt in the surface soil phenomenon in the generation blocking-up water salt motion of blocking-up capillarity improves the efficient of the water logging desalinization of soil by flooding or leaching.Utilize the biomass degradation bacterium of adding to realize the conversion of living beings in soil, improve the crumb structure and the fertility of salt affected soil, recover the plantation ability of salt-alkali contaminated soil, further repair salt-alkali contaminated soil by kind of plant at last.
Further describe effect of the present invention by the following examples, but do not limit the present invention.
Embodiment
Oily salt-alkali contaminated soil among the embodiment is positioned at Zhongyuan Oil Field, Puyang, Henan, 11 mu of areas.Test was implemented in 2006.The Puyang is positioned at the north, Henan Province, and mean annual precipitation 500mm～600mm belongs to the relatively area of arid, Henan.Among the embodiment in the contaminated soil salt content be normal 4～10 times of ploughing, the test site salinization of soil is serious, the pH regional area reaches 9.5.The embodiment implementation step is as follows:
1) builds the cofferdam about high 30cm around in the place, stop effluxing of desalinization of soil by flooding or leaching water, prevent secondary pollution normal arable land;
2) before machinery is turned over, living beings such as the discarded stalk in agricultural production are added the biomass degradation bacterium, and wherein bacterium is a pseudomonas aeruginosa, and fungi is a Phanerochaete chrysosporium;
3) with the living beings of step 2 interpolation biomass degradation bacterium, the method for turning over by machinery is the loose living beings layer of 5cm at dark 25cm place structure thickness quickly and easily, can effectively block the capillary of the accumulation of salt in the surface soil, promotes the efficient of the water logging desalinization of soil by flooding or leaching.
4) carry out the water logging desalinization of soil by flooding or leaching by the method for natural precipitation and man-made irrigation; The water logging desalinization of soil by flooding or leaching utilizes the well water pouring once from late July, and the water yield is 0.3m
3/ m
2Plough, be all later on the August～normal precipitation (precipitation the is 130mm) desalinization of soil by flooding or leaching in rainy season in September;
5) October 10 is by the further strengthen salt-alkali contaminated improvement of plantation wheat.
In an embodiment, use wheat straw to make up the living beings weaker zone, add the biomass degradation bacterium to living beings and promote the conversion of living beings in soil, employed bacterium is a pseudomonas aeruginosa, and fungi is a Phanerochaete chrysosporium.
The water logging desalinization of soil by flooding or leaching is from late July among the embodiment, and late July is utilized the well water pouring once, and the water yield is 0.3m
3/ m
2Plough.All the other are all the Zhongyuan Oil Field normal precipitation in August～September (precipitation is 130mm).To mid-September, the salt content of the contaminated soil among the embodiment has reached the requirement in normal arable land, and water logging desalinization of soil by flooding or leaching efficient is shown in the table 1 of back.
In an embodiment,, stop effluxing of desalinization of soil by flooding or leaching water, prevent secondary pollution normal arable land by build the cofferdam about high 30cm on every side in the place.After the water logging desalinization of soil by flooding or leaching finishes, salt-alkali contaminated soil is further improved by the plantation wheat
The present invention is described with reference to more excellent embodiment, and the those skilled in the art who is familiar with foregoing detailed description can make many changes and replacement, and it all is included in scope of the present invention and the flesh and blood.
Table 1 water logging desalinization of soil by flooding or leaching efficient
| Electrical conductivity (ms/cm) | Implement forefoot area and account for the gross area/% | Implement rear region and account for the gross area/% |
| 0～5 (the normal arable land) 5～10 10～20 20～30 30～40 40～50 | 17 23 19 30 10 1 | 86 10 4 0 0 0 |
Claims (5)
1. the in-situ remediation method of a biomass strengthen salt-alkali contaminated soil, it is characterized in that: the living beings of in salt-alkali contaminated soil, adding the biomass degradation bacterium, the method of utilizing machinery to turn over makes up the loose living beings layer in the water logging desalinization of soil by flooding or leaching process, thereby the capillary accumulation of salt in the surface soil phenomenon in the generation blocking-up water salt motion of blocking-up capillarity improves the efficient of the water logging desalinization of soil by flooding or leaching; Utilize the biomass degradation bacterium of adding to realize the conversion of living beings in soil simultaneously, improve the crumb structure and the fertility of salt affected soil, recover the plantation ability of salt-alkali contaminated soil, further repair salt-alkali contaminated soil by kind of plant at last.
2. according to the in-situ remediation method of the described biomass strengthen salt-alkali contaminated soil of claim 1, it is characterized in that: this method implementation step comprises:
1) selects salt-alkali contaminated arable land, build the cofferdam about high 30cm in the place on every side, stop effluxing of desalinization of soil by flooding or leaching water, prevent secondary pollution normal arable land;
2) before machinery is turned over, living beings such as the discarded stalk in agricultural production are added the biomass degradation bacterium, utilize microbial action realize living beings in soil to the conversion of humic acid, improve the crumb structure of salt-alkali contaminated soil, strengthen the fertility of contaminated soil;
3) with the living beings of step 2 interpolation biomass degradation bacterium, the method for turning over by machinery is the loose living beings layer of 3～15cm at dark 25～50cm place structure thickness quickly and easily, can effectively block the capillary of the accumulation of salt in the surface soil, promotes the efficient of the water logging desalinization of soil by flooding or leaching;
4) carry out the water logging desalinization of soil by flooding or leaching by the method for natural precipitation and man-made irrigation;
5) thus realize effective improvement in salt-soda soil follow-up by the plantation plant.
3. according to the in-situ remediation method of the described biomass strengthen salt-alkali contaminated soil of claim 1, it is characterized in that: described biomass degradation bacterium is made up of bacterium and fungi; Wherein bacterium is the bacterium with cellulose degradation ability: belong to (Thermoanaerobacter), give birth to spore Cytophaga (Sporocytophaga), pseudomonas (Pseudomonas sp.) etc. as hot anaerobic bacillus(cillus anaerobicus), the bacterium addition is 10
5～10
10The CFU/Kg living beings; Fungi is a white-rot fungi, trichoderma, aspergillus etc., Tathagata is from the Phanerochaete chrysosporium (Phanerochaete chrysosporium) of white rot fungi, Trichoderma viride (Trichodermaviride) from trichoderma, trichoderma reesei (Trichoderma reeaei), koning trichoderma (Trichoderma koningli) etc., Aspergillus glaucus (Aspergillus glaucus) from aspergillus, aspergillus niger (Aspergillusniger), aspergillus oryzaes (Aspergillus terreus) etc. (above-mentioned bacterial classification all can available from Chinese common micro-organisms DSMZ), addition is 20～100mgbiomass/Kg living beings.
4. according to the in-situ remediation method of the described biomass strengthen salt-alkali contaminated soil of claim 1, it is characterized in that: described living beings comprise the discarded object that produces in the agricultural production---agricultural crop straw; Papery class discarded object or cotton class discarded object that office produces.
5. according to the in-situ remediation method of the described biomass strengthen salt-alkali contaminated soil of claim 1, it is characterized in that: described plantation plant is a kind of in clover, wheat, the paddy.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849455A (en) * | 2010-04-06 | 2010-10-06 | 上海市园林科学研究所 | Method for improving coast salty soil by utilizing cotton straw |
| CN103614321A (en) * | 2013-11-15 | 2014-03-05 | 天津市武清区植保植检站 | Biological straw decomposition agent and preparation method thereof |
| CN104190703A (en) * | 2014-08-20 | 2014-12-10 | 上海华土生态环境科技有限公司 | Co-treatment method for soil salinization |
| CN104741368A (en) * | 2015-04-02 | 2015-07-01 | 黄晓东 | Method for biological remediation of soil with saline-alkali harms and application |
| CN105950174A (en) * | 2016-06-20 | 2016-09-21 | 滨州学院 | Microbial soil conditioner for saline-alkali soil |
| CN106069460A (en) * | 2016-06-04 | 2016-11-09 | 山东胜伟园林科技有限公司 | A kind of salt-soda soil arbor implantation methods |
| CN106171111A (en) * | 2016-07-15 | 2016-12-07 | 山东胜伟园林科技有限公司 | A kind of desulfurated plaster compounding application bacterial manure modification method to salt-soda soil |
| CN106623411A (en) * | 2016-11-15 | 2017-05-10 | 墨宝股份有限公司 | In-situ remediation method of biomass-enhanced salt-alkali contaminated soil |
| CN106718816A (en) * | 2016-12-20 | 2017-05-31 | 江苏省农业科学院 | A kind of method of quickly breeding Tidal Flat Reclamation soil natural biomembrane and application |
| CN108526213A (en) * | 2018-04-12 | 2018-09-14 | 位世云 | A kind of chemical industry soil sulfate pollution prosthetic device again |
| CN113748771A (en) * | 2021-08-19 | 2021-12-07 | 浙江安诺农业科技有限公司 | Efficient saline-alkali soil improvement method capable of improving and planting crops simultaneously |
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2007
- 2007-08-01 CN CNA2007101198594A patent/CN101130195A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849455A (en) * | 2010-04-06 | 2010-10-06 | 上海市园林科学研究所 | Method for improving coast salty soil by utilizing cotton straw |
| CN103614321A (en) * | 2013-11-15 | 2014-03-05 | 天津市武清区植保植检站 | Biological straw decomposition agent and preparation method thereof |
| CN103614321B (en) * | 2013-11-15 | 2015-10-28 | 天津市武清区植保植检站 | A kind of Biological straw decomposition agent and preparation method thereof |
| CN104190703A (en) * | 2014-08-20 | 2014-12-10 | 上海华土生态环境科技有限公司 | Co-treatment method for soil salinization |
| CN104741368A (en) * | 2015-04-02 | 2015-07-01 | 黄晓东 | Method for biological remediation of soil with saline-alkali harms and application |
| CN106069460A (en) * | 2016-06-04 | 2016-11-09 | 山东胜伟园林科技有限公司 | A kind of salt-soda soil arbor implantation methods |
| CN105950174A (en) * | 2016-06-20 | 2016-09-21 | 滨州学院 | Microbial soil conditioner for saline-alkali soil |
| CN106171111A (en) * | 2016-07-15 | 2016-12-07 | 山东胜伟园林科技有限公司 | A kind of desulfurated plaster compounding application bacterial manure modification method to salt-soda soil |
| CN106623411A (en) * | 2016-11-15 | 2017-05-10 | 墨宝股份有限公司 | In-situ remediation method of biomass-enhanced salt-alkali contaminated soil |
| CN106718816A (en) * | 2016-12-20 | 2017-05-31 | 江苏省农业科学院 | A kind of method of quickly breeding Tidal Flat Reclamation soil natural biomembrane and application |
| CN108526213A (en) * | 2018-04-12 | 2018-09-14 | 位世云 | A kind of chemical industry soil sulfate pollution prosthetic device again |
| CN113748771A (en) * | 2021-08-19 | 2021-12-07 | 浙江安诺农业科技有限公司 | Efficient saline-alkali soil improvement method capable of improving and planting crops simultaneously |
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