CN105123006A - Urban sludge marginal land renovation method and soil configuration - Google Patents
Urban sludge marginal land renovation method and soil configuration Download PDFInfo
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- CN105123006A CN105123006A CN201510456726.0A CN201510456726A CN105123006A CN 105123006 A CN105123006 A CN 105123006A CN 201510456726 A CN201510456726 A CN 201510456726A CN 105123006 A CN105123006 A CN 105123006A
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- rotary tillage
- modifying agent
- sludge
- marginal land
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Abstract
The invention relates to the technical field of land renovation engineering and in particular relates to an urban sludge marginal land renovation method. The method comprises the following steps of tidying and cleaning land surface of the marginal land, paving urban dehydrated sludge on the marginal land, paving modifiers on the urban dehydrated sludge, mixing the paved urban dehydrated sludge and the modifiers and then conducting rotary ploughing, and paving alien soil on the mixed and rotary-ploughed urban dehydrated sludge and modifiers. A plantation method to solve problems of barren marginal land soil and thin soil layer is developed and artificial soil with certain thickness and containing fertility is formed; low soil modifying cost and great effect are achieved; plant growth can be met; urban sludge processing modes can be eliminated; and resource and environment circulation utilization can be achieved.
Description
Technical field
The present invention relates to land control field of engineering technology, particularly relate to the marginal land regulation method based on municipal sludge and soil body configuration.
Background technology
Municipal sludge is the residue of municipal sewage plant to the offscum gained that the deposit produced in sewage disposal process and sewage surface drift out, simply, mud is solid portion discarded object in sewage, it is by product in municipal wastewater processing procedure, being rich in organic matter and nutrient, is a kind of renewable resources.The main methods of current mud has landfill, burning, throwing sea and Land_use change, plant in processing method at first three, there are 2 aspect problems: being waste resource on the one hand, because municipal sludge contains abundant N, P, K and organic matter, is good organic manure; Be be subject to place restriction on the other hand, disposal cost is very expensive, just not saying aunt's cost issues, the place of Sludge landfill is also very limited.Due to these two aspects, in the urgent need to seeking large, the economically viable processing method of a kind of process capacity, two municipal sludge land resourcesizations are a kind of like this processing method with bright prospects just.Mud and products thereof can be used as a kind of organic manure or soil conditioner carries out Land_use change, a kind of approach becoming China's Treatment of Sludge Yu utilize aspect very promising.But sludge chemical forms, and particularly its poisonous, noxious pollutant, may form the limiting factor of this Land_use change, even bring environmental problem.
The marginal land soil body configuration being suitable for carrying out planting of at present, the exploitation such as soil layer thin barren for marginal land soil and method for sorting, general cost is higher, and reclamation result is not good, and can not meet the feature of plant growth.
Therefore, for above deficiency, need to provide a kind of marginal land regulation method based on municipal sludge and and soil body configuration.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is that the general cost that solution existing marginal land soil body configuration and method for sorting exist is higher, and reclamation result is not good, and can not meet the problem of plant growth feature.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of marginal land regulation method based on municipal sludge, comprising the following steps:
S1, is undertaken arranging and clearing up by the earth's surface of marginal land;
S2, city dehydrated sludge is laid in marginal land;
S3, modifying agent is laid in city dehydrated sludge;
S4, is undertaken mixing rotary tillage by the city dehydrated sludge of having laid and modifying agent;
S5, soil moved in improve the original is laid in the city dehydrated sludge after mixing rotary tillage, modifying agent.
Wherein, step S4 detailed process is: S41, the city dehydrated sludge of having laid and modifying agent is carried out first time to mix rotary tillage; S42, carries out the second time contrary with the rotary tillage direction mixing rotary tillage for the first time by the city dehydrated sludge after first time mixing rotary tillage and modifying agent and mixes rotary tillage.
Wherein, further comprising the steps of after step S42:
S43, the city dehydrated sludge after second time mixing rotary tillage and modifying agent and the part surface soil of marginal land being carried out third time mixes rotary tillage.
Wherein, further comprising the steps of:
S6, mixes the city dehydrated sludge after rotary tillage and modifying agent and carries out the 4th time and mix rotary tillage with third time by soil moved in improve the original.
Wherein, in step s 2, the thickness of described city dehydrated sludge is 15cm.
Wherein, in step s3, the thickness of described modifying agent is 1cm.
Wherein, in step s 5, the thickness of described soil moved in improve the original is 15cm.
Present invention also offers a kind of soil body configuration formed based on the marginal land regulation method of municipal sludge, comprise lower floor, middle level and upper strata, described lower floor is the soil of marginal land, and described middle level is the soil that city dehydrated sludge mixes with modifying agent, and described upper strata is soil moved in improve the original.
Wherein, the contact surface place in described lower floor and middle level forms the first mixed layer by mixing rotary tillage, and described first mixed layer comprises the soil of city dehydrated sludge, modifying agent and marginal land; Described upper strata forms the second mixed layer with the contact surface place in middle level by mixing rotary tillage, and described second mixed layer comprises city dehydrated sludge, modifying agent and soil moved in improve the original.
Wherein, the component of described modifying agent comprises poly-second propylene, shitosan, HEDP and magnesium salts, and material mass is than being 3:3:3:1.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: the problems such as the marginal land regulation method based on municipal sludge provided by the invention is barren for marginal land soil, soil layer is thin, by city dehydrated sludge and modifying agent mixing rotary tillage, form certain thickness, there is the artificial soil of fertility, soil melioration cost is low, effective and can meet plant growth, municipal sludge is used to renovate marginal land, city, can to dissolve the disposal pattern of municipal sludge, to achieve again resource, the recycling of environment.
The technical characteristic of the technical problem solved except the present invention described above, the technical scheme of formation and have the technical characteristic of these technical schemes to bring advantage except, the advantage that the other technologies feature of inertia variable shock absorber of the present invention and these technical characteristics bring, will further illustrate by reference to the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the soil body configuration schematic diagram of the embodiment of the present invention two.
In figure: 1: lower floor; 2: middle level; 3: upper strata.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment one
The invention provides a kind of marginal land regulation method based on municipal sludge, comprise the following steps:
S1, is undertaken arranging and clearing up by the earth's surface of marginal land;
S2, city dehydrated sludge is laid in marginal land, and the thickness of city dehydrated sludge is 15cm;
S3, modifying agent is laid in city dehydrated sludge, modifying agent thickness be 1cm;
S41, the city dehydrated sludge of having laid and modifying agent being carried out first time mixes rotary tillage;
S42, carries out the second time contrary with the rotary tillage direction mixing rotary tillage for the first time by the city dehydrated sludge after first time mixing rotary tillage and modifying agent and mixes rotary tillage;
S43, the city dehydrated sludge after second time mixing rotary tillage and modifying agent and the part surface soil of marginal land being carried out third time mixes rotary tillage;
S5, soil moved in improve the original is laid in the city dehydrated sludge after third time mixing rotary tillage, the part surface soil of modifying agent and marginal land, and the thickness of soil moved in improve the original is 15cm;
S6, mixes the city dehydrated sludge after rotary tillage and modifying agent and carries out the 4th time and mix rotary tillage with third time by soil moved in improve the original.
In above-described embodiment, adopt the above-mentioned marginal land regulation method based on municipal sludge, by the part surface soil mixing rotary tillage of city dehydrated sludge, modifying agent and marginal land, form certain thickness, there is the artificial soil of fertility, by city dehydrated sludge, modifying agent and soil moved in improve the original mixing rotary tillage, soil melioration cost is low, effective and can meet plant growth, municipal sludge is used to renovate marginal land, city, can to dissolve the disposal pattern of municipal sludge, to achieve again resource, the recycling of environment.
Embodiment two
As shown in Figure 1, a kind of soil body configuration formed based on the marginal land regulation method of municipal sludge that the embodiment of the present invention provides, comprise lower floor 1, middle level 2 and upper strata 3, lower floor 1 is the soil of marginal land, middle level 2 is the soil that city dehydrated sludge mixes with modifying agent, and upper strata 3 is soil moved in improve the original.
Concrete, lower floor 1 passes through to mix rotary tillage with the contact surface in middle level 2 and forms the first mixed layer, and the first mixed layer comprises the soil of city dehydrated sludge, modifying agent and marginal land; Upper strata 3 forms the second mixed layer with the contact surface in middle level by mixing rotary tillage, and the second mixed layer comprises city dehydrated sludge, modifying agent and soil moved in improve the original.
Wherein, the component of modifying agent comprises poly-second propylene, shitosan, HEDP and magnesium salts, and the material mass ratio of poly-second propylene, shitosan, HEDP and magnesium salts is 3:3:3:1, as the repair materials of Heavy Metals in Sludge.
In sum, based on the marginal land regulation method of municipal sludge and the soil body configuration of formation thereof, by the part surface soil mixing rotary tillage of city dehydrated sludge, modifying agent and marginal land, form certain thickness, there is the artificial soil of fertility, by city dehydrated sludge, modifying agent and soil moved in improve the original mixing rotary tillage, soil melioration cost is low, effective and can meet plant growth, municipal sludge is used to renovate marginal land, city, can to dissolve the disposal pattern of municipal sludge, to achieve again resource, the recycling of environment.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1., based on a marginal land regulation method for municipal sludge, it is characterized in that, comprise the following steps:
S1, is undertaken arranging and clearing up by the earth's surface of marginal land;
S2, city dehydrated sludge is laid in marginal land;
S3, modifying agent is laid in city dehydrated sludge;
S4, is undertaken mixing rotary tillage by the city dehydrated sludge of having laid and modifying agent;
S5, soil moved in improve the original is laid in the city dehydrated sludge after mixing rotary tillage, modifying agent.
2. the marginal land regulation method based on municipal sludge according to claim 1, is characterized in that: step S4 detailed process is: S41, the city dehydrated sludge of having laid and modifying agent is carried out first time to mix rotary tillage; S42, carries out the second time contrary with the rotary tillage direction mixing rotary tillage for the first time by the city dehydrated sludge after first time mixing rotary tillage and modifying agent and mixes rotary tillage.
3. the marginal land regulation method based on municipal sludge according to claim 2, is characterized in that: further comprising the steps of after step S42:
S43, the city dehydrated sludge after second time mixing rotary tillage and modifying agent and the part surface soil of marginal land being carried out third time mixes rotary tillage.
4. the marginal land regulation method based on municipal sludge according to claim 3, is characterized in that: further comprising the steps of:
S6, mixes the city dehydrated sludge after rotary tillage and modifying agent and carries out the 4th time and mix rotary tillage with third time by soil moved in improve the original.
5. the marginal land regulation method based on municipal sludge according to claim 1, is characterized in that: in step s 2, and the thickness of described city dehydrated sludge is 15cm.
6. the marginal land regulation method based on municipal sludge according to claim 1, is characterized in that: in step s3, and the thickness of described modifying agent is 1cm.
7. the marginal land regulation method based on municipal sludge according to claim 1, is characterized in that: in step s 5, and the thickness of described soil moved in improve the original is 15cm.
8. by the soil body configuration formed based on the marginal land regulation method of municipal sludge described in claim 1-7 any one, comprise lower floor, middle level and upper strata, it is characterized in that, described lower floor is the soil of marginal land, described middle level is the soil that city dehydrated sludge mixes with modifying agent, and described upper strata is soil moved in improve the original.
9. soil body configuration according to claim 8, is characterized in that: the contact surface place in described lower floor and middle level forms the first mixed layer by mixing rotary tillage, and described first mixed layer comprises the soil of city dehydrated sludge, modifying agent and marginal land; Described upper strata forms the second mixed layer with the contact surface place in middle level by mixing rotary tillage, and described second mixed layer comprises city dehydrated sludge, modifying agent and soil moved in improve the original.
10. soil body configuration according to claim 8, is characterized in that: the component of described modifying agent comprises poly-second propylene, shitosan, HEDP and magnesium salts, and material mass is than being 3:3:3:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510456726.0A CN105123006A (en) | 2015-07-29 | 2015-07-29 | Urban sludge marginal land renovation method and soil configuration |
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| CN201510456726.0A CN105123006A (en) | 2015-07-29 | 2015-07-29 | Urban sludge marginal land renovation method and soil configuration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106105470A (en) * | 2016-07-26 | 2016-11-16 | 中国科学院地理科学与资源研究所 | A kind of healthy soil body construction method of land control of giving up based on rural area sky |
| CN109089453A (en) * | 2018-08-23 | 2018-12-28 | 大连地拓环境科技有限公司 | A kind of abandoned mine is reclaimed as the soil system reconstructing method in forest land |
| CN109379919A (en) * | 2018-10-26 | 2019-02-26 | 大连地拓环境科技有限公司 | A kind of soil configuration of using sludge-filled depression land reclamation |
-
2015
- 2015-07-29 CN CN201510456726.0A patent/CN105123006A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 光明等: "海口南渡江土地整治区首创河塘底泥应用"人造沃土"变成现实", 《海口晚报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106105470A (en) * | 2016-07-26 | 2016-11-16 | 中国科学院地理科学与资源研究所 | A kind of healthy soil body construction method of land control of giving up based on rural area sky |
| CN106105470B (en) * | 2016-07-26 | 2019-09-03 | 中国科学院地理科学与资源研究所 | A kind of healthy soil body construction method based on the useless land control of rural area sky |
| CN109089453A (en) * | 2018-08-23 | 2018-12-28 | 大连地拓环境科技有限公司 | A kind of abandoned mine is reclaimed as the soil system reconstructing method in forest land |
| CN109379919A (en) * | 2018-10-26 | 2019-02-26 | 大连地拓环境科技有限公司 | A kind of soil configuration of using sludge-filled depression land reclamation |
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Application publication date: 20151209 |