CN113396795B - Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method - Google Patents
Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method Download PDFInfo
- Publication number
- CN113396795B CN113396795B CN202110666851.XA CN202110666851A CN113396795B CN 113396795 B CN113396795 B CN 113396795B CN 202110666851 A CN202110666851 A CN 202110666851A CN 113396795 B CN113396795 B CN 113396795B
- Authority
- CN
- China
- Prior art keywords
- soil
- layer
- river
- foreign
- bottom mud
- 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
- 239000002689 soil Substances 0.000 title claims abstract description 174
- 239000002910 solid waste Substances 0.000 title abstract description 36
- 239000002367 phosphate rock Substances 0.000 title abstract description 20
- AQSJGOWTSHOLKH-UHFFFAOYSA-N Phosphite Chemical compound [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 title abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 132
- 239000002893 slag Substances 0.000 claims abstract description 76
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000011574 phosphorus Substances 0.000 claims abstract description 40
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 40
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000002344 surface layer Substances 0.000 claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000005067 remediation Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000004576 sand Substances 0.000 claims description 29
- 239000004021 humic acid Substances 0.000 claims description 23
- 239000003895 organic fertilizer Substances 0.000 claims description 21
- 239000010802 sludge Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 11
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 9
- 241001646071 Prioneris Species 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 235000016709 nutrition Nutrition 0.000 abstract description 9
- 230000035764 nutrition Effects 0.000 abstract description 8
- 239000002585 base Substances 0.000 description 32
- 241000196324 Embryophyta Species 0.000 description 31
- 230000000052 comparative effect Effects 0.000 description 18
- 235000015097 nutrients Nutrition 0.000 description 11
- 238000006297 dehydration reaction Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000003337 fertilizer Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000003750 conditioning Effects 0.000 description 5
- 230000000813 microbial Effects 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000002378 acidificating Effects 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004642 transportation engineering Methods 0.000 description 4
- 240000008893 Cynodon dactylon Species 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive Effects 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 230000035558 fertility Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 230000003472 neutralizing Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000366 soil substitute Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000004083 survival Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 241000561734 Celosia cristata Species 0.000 description 1
- 210000001520 Comb Anatomy 0.000 description 1
- 241000195955 Equisetum hyemale Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 210000000282 Nails Anatomy 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011030 bottleneck Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000029578 entry into host Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000008204 materials by function Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002085 persistent Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 230000003014 reinforcing Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained Effects 0.000 description 1
- 230000002195 synergetic Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/17—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing slag
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/28—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing peat, moss or sphagnum
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
- A01G24/44—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
- A01G24/46—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form multi-layered
Abstract
The invention provides a foreign soil layer structure based on river and lake bottom mud and phosphorite solid waste and a preparation method thereof. The soil layer structures are sequentially a foreign soil surface layer, a middle permeable layer and a foreign soil base layer from top to bottom, and the contact surface between each layer of foreign soil layer structure is a zigzag transition structure; the invention utilizes the industrial solid wastes such as phosphorus slag, phosphogypsum, steel slag and the like to modify and improve the dredging bottom mud of rivers and lakes to be used as the vegetation concrete alien soil, the acidity and alkalinity of the alien soil meet the growth requirement of vegetation and can provide continuous nutrition supply for the vegetation, the invention has the technical advantages of easy obtainment of raw materials, simple process, excellent economy, ecological environmental protection and the like, can also effectively solve the technical problems of high cost of the vegetation concrete alien soil, secondary pollution of solid waste piles to the environment and the like at the present stage, and is particularly suitable for urban areas with the requirements of river and lake remediation and industrial solid waste disposal.
Description
Technical Field
The invention relates to the technical field of solid waste treatment and urban soil improvement, and particularly provides a foreign soil layer structure based on solid waste of river and lake bottom mud and phosphorite and a preparation method thereof.
Background
Aiming at the current situations of serious water and soil loss and reduced ecological function of the bank slope in China, the development and popularization of the ecological bank protection technology becomes an important technical measure for the treatment and restoration of the river and lake ecological system in China. The vegetation concrete is an ecological slope bank protection technology which is widely applied, can be used for restoring and reconstructing ecological environments such as river bank protection, channel revetment, highway side slope and the like, has the characteristic of reinforcing the bank by the traditional concrete bank protection, can form green natural landscape, keeps the biological diversity of nearby microbial habitats and plays a role in purifying water quality, and has very outstanding social benefit and ecological benefit.
The foreign soil paved on the surface of the plant-growing concrete provides a growing environment for plants and protects the plant-growing concrete filling material from loss. The alien soil is usually prepared by using common soil as a base material and then mixing with proper nutrient fertilizer and/or organic matters, adhesive, water-retaining agent and the like. At present, the research on foreign soil in China mainly focuses on the aspects of construction devices and processes. The utility model discloses a Chinese utility model with publication number CN201120312772.0 discloses a soil removal fixing device, which comprises a soil removal bag which is parallel leaned on a base surface and an anchoring nail for fixing the soil removal bag; the Chinese invention patent with publication number CN101103696B discloses a method for recovering vegetation on a rock slope, which adopts a combination mode of double-layer spraying of foreign soil and organic matter and direct seeding of seeds and transplanting of arbor and shrub seedlings; the Chinese patent with publication number CN105340661B discloses a block-shaped foreign soil planting layer and a method for planting trees by using the same, aiming at saline-alkali areas, the method consists of an upper layer of aeolian pulverized fine sand soil layer, a lower layer of large particle layer and a grid cloth positioned between the upper layer and the lower layer, and can effectively control the salt content in the soil and avoid the invasion of the surrounding salt content.
In the aspects of foreign soil property improvement and structure research, the Chinese patent with publication number CN101796913B discloses foreign soil for slope protection of loess slope plants, which meets the physical structure and nutritional ingredients required by the growth of the slope plants in semiarid loess regions by adding a certain proportion of soil conditioner, water-retaining agent, adhesive and compound fertilizer into sandy loess. The invention discloses a Chinese patent with publication number CN101371639B, which aims at solving the problems of low plant survival rate, difficult foreign soil source, high cost, secondary pollution risk of a large amount of excess sludge generated in urban domestic sewage treatment on the environment and the like existing in a reclamation method, and discloses surface soil for mining reclamation, which consists of stripping soil, tailing sand and excess sludge, wherein the weight percentages of all components are 75-80% of the stripping soil, 15-20% of the tailing sand and 1-10% of the excess sludge. The invention discloses a soilless planting substrate for recovering vegetation in a metal ore waste rock yard and a vegetation recovery construction method thereof, wherein the soilless planting substrate comprises HDS (high density fiberboard) bottom mud, rice hulls, fermented sludge, an organic polymerization crosslinking agent and a microbial agent, the HDS bottom mud is waste obtained by neutralizing mine acid wastewater with lime milk or acetylene sludge acid-base after valuable elements are recovered, namely the soilless planting substrate takes waste obtained by neutralizing the fermented sludge and the mine acid wastewater with acid-base as a main substrate and is improved by organic matters and fungi as an auxiliary material, the fermented sludge and the bottom mud have complex components, and harmful substances such as residual agents, heavy metals and the like exist in the substrate for vegetation growth for a long time, and the substrate for vegetation growth has long-term ecological risks. The Chinese patent with the publication number of CN103214300B also discloses a composite improved matrix material for ecological restoration of a coal gangue storage yard based on excess sludge, fly ash, soil, mushroom dregs and the like. Because various medicaments are mixed in the excess sludge treatment process and persistent pollutants such as heavy metals and the like remain, secondary environmental risks can be caused when the excess sludge treatment process is used as planting concrete soil dressing; on the basis, an optimized formula (publication number is CN 110683919A) for the improved matrix for the ecological restoration of the acidic weathered coal gangue yard is disclosed recently, and 25% of limestone powder and 10% of phosphate rock powder are adopted to replace residual sludge, fly ash and phosphogypsum, so that the ecological property of the improved matrix is further improved. The substrate material proposed by the patent is only used for covering the surface of the acid coal gangue storage yard by 2cm, and the cushion layer below the base layer still needs to purchase soil outside, so that the economy and sustainability of the soil and nutrition required by ecological restoration vegetation are not solved.
At present, relevant researches on utilization of river and lake bottom mud and industrial solid wastes as soil dressing are not reported.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a foreign soil layer structure based on river and lake bottom mud and phosphorite solid waste, ensures that foreign soil can prevent plant-growing concrete filling materials from losing, ensures continuous nutrition supply requirements for plant growth, fully utilizes water environment to treat and dredge river and lake bottom mud, phosphorus slag, phosphogypsum, steel slag and other industrial solid waste, and can effectively solve the technical problems of high cost of vegetation concrete foreign soil, secondary pollution of industrial solid waste stacking on the environment and the like in the current stage.
The invention also aims to provide a preparation method of the soil layer structure of the removed soil based on the solid waste of the river and lake bottom mud and the phosphorite.
The above object of the present invention is achieved by the following means.
The soil-dressing structure is based on solid waste of river and lake bottom mud and phosphorite, the soil-dressing structure sequentially comprises a soil-dressing surface layer, a middle permeable layer and a soil-dressing base layer from top to bottom, and a contact surface between each two soil-dressing structures is a zigzag transition structure;
the soil dressing surface layer and the soil dressing base layer comprise the following raw materials in percentage by mass: 54-64% of river and lake bottom mud, 16-36% of phosphorus slag and 10-20% of humic acid organic fertilizer;
the middle permeable layer comprises the following raw materials in percentage by mass: 6 to 16 percent of phosphogypsum, 74 to 75 percent of steel slag sand and 10 to 20 percent of humic acid organic fertilizer.
The serrated transition structures and the steel slag sand are arranged between the soil layers to act together, when rainwater permeates into the surface layer of the passenger soil, the serrated transition structures increase the contact surface between the soil layers, and the penetration of the rainwater from the surface layer of the passenger soil to the base layer can be accelerated under the action of the steel slag sand in the middle permeable layer, so that the water permeation and delivery efficiency is improved, and the roots of plants are prevented from being rotten due to long-term immersion in water; meanwhile, the alien soil base layer can be used as a water retention layer, water is stored in the alien soil base layer under the action of a saw-toothed transition structure and steel slag sand, and the stored water of the alien soil base layer can be absorbed when the plants lack water, so that the water supply of the plants is guaranteed; the zigzag transition structure enables soil layer structures to be staggered with each other, so that nutrients can better permeate and are beneficial to plant absorption; the zigzag transition structure between soil layers can increase the stress effect, so that each layer of soil layer structure is more stable and has higher strength.
The river and lake bottom mud contains rich nutrient substances required by vegetation growth and flora for improving microbial habitat, and the phosphorus slag and the phosphogypsum contain a certain amount of soluble phosphorus element, calcium, sulfur and other elements, so that continuous nutrient supply can be provided for the vegetation.
Preferably, the thickness of the alien soil surface layer is 3-5cm, the thickness of the middle permeable layer is 2-4cm, the thickness of the alien soil base layer is 2-4cm, more specifically, the thickness of the alien soil surface layer is 4cm, the thickness of the middle permeable layer is 3cm, and the thickness of the alien soil base layer is 3cm.
Preferably, the sawtooth-shaped transition structure is a tooth-shaped groove, the distance between the tooth-shaped grooves is 0.5-0.8cm, and the depth is 0.5-0.8cm. More specifically, the pitch of the tooth-shaped grooves is 0.6cm, and the depth is 0.6cm.
Preferably, the river and lake bottom mud is desilting bottom mud or pipe network mud after the water environment is renovated, the water content of the river and lake bottom mud is 75% -85%, and the pH value of the river and lake bottom mud is 6.0-7.5.
Preferably, the fineness of the phosphorous slag is 100-200 meshes and P is 2 O 5 The content is 1.5-3.0%. The phosphorus slag is used as a dehydration conditioning raw material to perform dehydration and solidification treatment on the improvement of the dredging bottom mud of the river and the lake, so as to accelerate the rapid dehydration of the bottom mud of the river and the lake.
Preferably, the pH of the phosphogypsum is 4.5-5.5. The phosphorus slag and the phosphogypsum can act synergistically to neutralize and regulate the acidity and alkalinity of the foreign soil surface layer and the foreign soil base layer, so that the soil layer structure is more suitable for plant growth.
Preferably, the steel slag sand is drum steel slag which is sieved to obtain fine particles with the particle size of 2.35-5 mm. The steel slag sand is used for improving the water permeation and conveying efficiency.
The invention also provides a preparation method of the soil layer structure of the removed soil based on the solid waste of the river and lake bottom mud and the phosphorite, which comprises the following steps:
1) Uniformly mixing the river and lake bottom mud and the phosphorus slag, naturally stacking the stuffy materials at a rain sheltering position for 24-48 hours, discharging upper water after precipitation to enable the water content of the river and lake bottom mud to reach 50-55%, and then uniformly mixing the mixture of the river and lake bottom mud and the phosphorus slag with the humic acid organic fertilizer to obtain a material A;
2) Mixing and stirring phosphogypsum, steel slag sand and humic acid organic fertilizer for 30s to obtain a material B;
3) Paving the material A on the surface layer of the plant-growing concrete, wherein the paving thickness is 2-4cm, and thus obtaining the foreign soil base layer;
4) Setting a saw-tooth transition structure with the distance of 0.5-0.8cm and the depth of 0.5-0.8cm on the surface of the soil-dressing base layer paved in the step 3);
5) Laying the material B on the sawtooth-shaped transition structure in the step 4), and laying the material B with the thickness of 2-4cm from the top of the sawtooth-shaped transition structure to obtain the middle permeable layer;
6) Setting a saw-tooth transition structure with the interval of 0.5-0.8cm and the depth of 0.5-0.8cm on the surface of the middle water-permeable layer paved in the step 5);
7) And (3) paving the material A on the sawtooth-shaped transition structure in the step 6), and paving the material A to 3-5cm from the top of the sawtooth-shaped transition structure to obtain the surface layer of the foreign soil.
The invention takes the sediment dredged by the water environment remediation project as the raw material, adopts the phosphorus slag and the phosphogypsum in the solid waste of the phosphorite as the dehydration conditioning raw material, and the phosphorus slag carries out dehydration curing treatment on the sediment, thereby accelerating the dehydration efficiency of the sediment, shortening the treatment period, enabling the sediment to have higher strength and being more stable and difficult to slide when being used as the river channel slope protection; the river and lake bottom mud contains rich nutrient substances required by plant growth and flora for improving microbial habitat, and is supplemented with humic acid organic fertilizer to improve the nutrition level; the intermediate permeable layer of the phosphogypsum and coarse grains of the steel slag sand is supplemented with humic acid organic fertilizer, which is beneficial to adjusting the alkalinity of the upper and lower soil layers; the phosphorus slag and the phosphogypsum both contain a certain amount of soluble phosphorus, and the gradual slow release of the soluble phosphorus can provide continuous nutrition supply for the growth of surface layer plants, the invention can avoid the high cost caused by purchasing foreign soil, and can fully eliminate bottom mud and industrial solid waste generated by water environment remediation.
Compared with the prior art, the invention has the beneficial effects that:
(1) The raw materials are easy to obtain, the river and lake bottom mud is used as a soil dressing base material, the phosphorus slag is used as a dehydration conditioning raw material, the phosphorus slag and the phosphogypsum are used as a pH value adjusting material, the steel slag sand is used for improving the water permeation and transportation efficiency, all the materials are fully based on the principle of local materials, and the river and lake bottom mud, the phosphorite solid waste and the steel slag sand in the dredging engineering are utilized, so that waste materials are changed into valuable materials, the secondary utilization of waste material resources is realized, the resource utilization approach of the solid waste is widened, the solid waste accumulation occupied land is reduced, the technical problems of high cost of vegetation concrete dressing, secondary pollution of industrial solid waste accumulation to the environment and the like in the current stage are effectively solved, and the technical economic and ecological benefits are very obvious.
(2) The soil dressing structure prepared by the method is suitable for plant growth, the survival rate of plants can be improved, the phosphogypsum is acidic and the phosphorous slag is alkaline through the synergistic effect of the phosphorous slag and the phosphogypsum, and the acidity and alkalinity of the soil dressing surface layer and the soil dressing base layer can be neutralized and adjusted, so that the soil layer structure is more suitable for plant growth; the river and lake bottom mud contains rich nutrient substances required by vegetation growth and flora for improving microbial habitat, and the phosphorus slag and the phosphogypsum contain a certain amount of soluble phosphorus element, calcium, sulfur and other elements, so that continuous nutrient supply can be provided for the vegetation, and the dosage of nutrient fertilizers in the traditional soil dressing is reduced; the zigzag transition structure enables the soil layer structures to be mutually staggered, the contact surface is increased, moisture and nutrients can better permeate, plants can absorb the moisture and the fertility, and the moisture retention performance and the fertility of the soil layer structures can be simultaneously guaranteed.
(3) According to the invention, the sawtooth-shaped transition structure and the steel slag sand act together, when rainwater permeates into the surface layer of the soil, the sawtooth-shaped transition structure increases the contact surface between soil layers, and the penetration of the rainwater from the surface layer of the soil to the base layer of the soil can be accelerated under the action of the steel slag sand in the middle permeable layer, so that the water permeation and delivery efficiency is improved, and the roots of plants are prevented from being rotten due to long-term immersion in water; meanwhile, the alien soil base layer can be used as a water retention layer, water is stored in the alien soil base layer under the action of the sawtooth-shaped transition structure and the steel slag sand, and the stored water of the alien soil base layer can be absorbed when the plants lack water, so that the water supply of the plants is guaranteed.
(4) The foreign soil and soil layer structure is more stable when being used as a river course slope protection, the phosphorus slag carries out dehydration and solidification treatment on the bottom mud, the dehydration efficiency of the bottom mud can be accelerated, the treatment period is shortened, the strength of the bottom mud is increased, and the soil layer structure can be more stable when being used as the river course slope protection; secondly, the cockscomb structure between the soil horizon increases the atress effect for it is more stable between every layer of soil horizon structure, has higher intensity, can effective scour protection and prevent the landslide that causes because of the side slope is unstable when as the river course bank protection.
(5) The construction process is simple, the preparation process of the soil layer structure of the foreign soil comprises mechanical stirring and natural material stacking, the environment is not polluted, and the normal construction is not influenced.
Drawings
Fig. 1 is a schematic sectional view of a soil layer structure of the present invention.
Reference numerals are as follows: 1. a soil surface layer is removed; 2. a middle permeable layer; 3. a soil base layer is removed; 4. a plant seed; 5. a saw-toothed transition structure.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in figure 1, the foreign soil layer structure based on solid waste of river and lake bottom mud and phosphorite sequentially comprises a foreign soil surface layer 1, a middle permeable layer 2 and a foreign soil base layer 3 from top to bottom, plant seeds 4 are arranged on the upper layer of the foreign soil surface layer 1, the plant seeds 4 are directly sprayed and sowed within 2cm of the upper layer of the foreign soil surface layer 1, the contact surface between each layer of the foreign soil layer structure is a sawtooth-shaped transition structure 5, the sawtooth-shaped transition structure 5 is a tooth-shaped groove, the space between the tooth-shaped grooves is 0.6cm, and the depth is 0.6cm.
The preparation method of the foreign soil layer structure based on the river and lake bottom mud and the phosphorite solid waste provided by the following examples and comparative examples comprises the following steps:
1) Weighing river and lake bottom mud, phosphorus slag and a humic acid organic fertilizer according to the mass percentage of 54-64 to 16-36, uniformly mixing the river and lake bottom mud and the phosphorus slag, naturally stacking the materials in a rain sheltering place for 24-48 hours, discharging upper water after precipitation to enable the water content of the river and lake bottom mud to reach 50-55%, and uniformly mixing the mixture of the river and lake bottom mud and the phosphorus slag with the humic acid organic fertilizer to obtain a material A;
2) Weighing the phosphogypsum, the steel slag sand and the humic acid organic fertilizer according to the mass percentage of 6-16;
3) Paving the material A on the surface layer of the plant-growing concrete, wherein the paving thickness is 2-4cm, and thus obtaining the foreign soil base layer;
4) Setting a saw-tooth transition structure with the distance of 0.5-0.8cm and the depth of 0.5-0.8cm on the surface of the soil dressing base layer paved in the step 3);
5) Laying the material B on the sawtooth-shaped transition structure in the step 4), and laying the material B with the thickness of 2-4cm from the top of the sawtooth-shaped transition structure to obtain the middle permeable layer;
6) Setting a saw-tooth transition structure with the interval of 0.5-0.8cm and the depth of 0.5-0.8cm on the surface of the middle water-permeable layer paved in the step 5);
7) And (3) paving the material A on the sawtooth-shaped transition structure in the step 6), and paving the material A to 3-5cm from the top of the sawtooth-shaped transition structure to obtain the surface layer of the foreign soil.
Wherein the water content of the river and lake bottom mud is 75-85%, and the pH value is 6.0-7.5; the fineness of the phosphorous slag is 100-200 meshes and P 2 O 5 The content is 1.5% -3.0%; the pH value of the phosphogypsum is 4.5-5.5; the steel slag sand is drum steel slag and is screened to obtain fine particles with the particle size of 2.35-5 mm.
The humic acid organic fertilizer is a commercially available product, and the manufacturer is Handan City-sourced WoFei technology company Limited; the following embodiments use the same organic fertilizer of humic acids, which is a prior art and is not intended to limit the invention further.
Examples 1 to 5 and comparative examples 1 to 4
By adopting the preparation method of the soil layer structure of the soil for foreign land, the river and lake bottom mud of a certain water system remediation project in the horsetail area of Fuzhou city of Fujian province is selected and mixed with phosphorite solid waste for improvement test, and the material consumption and the soil layer thickness of each soil layer are as shown in the following table 1:
TABLE 1
Comparative example 5
The difference between comparative example 5 and example 1 is that no sawtooth-shaped transition structure is established in step 4) and step 6).
Comparative example 6
The difference between comparative example 6 and example 1 is that the steel slag sand is replaced with natural river sand in the middle permeable layer.
Comparative example 7
Comparative example 7 differs from example 1 in that a zigzag transition structure was established with a pitch of 0.4cm and a depth of 0.4cm.
Comparative example 8
Comparative example 8 is different from example 1 in steps 3), 5), 7) the thicknesses of the soil surface layer, the intermediate permeable layer and the soil base layer were 4, 4.5 and 3cm, respectively.
Comparative example 9
And in the comparative example 9, outsourcing soil (manufacturers: huangpi district and Qinhu Cao works in Wuhan City) and humic acid organic fertilizer are adopted, the mass percentage of the outsourcing soil to the humic acid organic fertilizer is 90 percent, the outsourcing soil and the humic acid organic fertilizer are laid on the surface layer of the vegetation concrete, the thickness of the outsourcing soil is 8cm, and meanwhile, a sawtooth transition structure is not arranged.
Application example Performance detection
And (3) within the range of 2cm on the soil surface, carrying out spray sowing on bermuda grass seeds by using the foreign soil, simulating rainfall infiltration conditions, and measuring the pH value, the shear strength, the seed germination time and the vegetation coverage rate after one month of each soil layer.
The method for testing the soil layer shear resistance inner friction angle and the cohesive force is carried out according to the regulation in GB/T50123-2019 geotechnical test method Standard.
The test results of the examples and comparative examples are shown in Table 2:
TABLE 2
By comparing the experimental data in table 2, it can be seen that:
compared with the example 1, when the using amount of the phosphorous slag is increased or the using amount of the phosphogypsum is reduced, the pH values of the upper soil layer and the lower soil layer are alkalescent and positive, and when the using amount of the phosphorous slag is reduced or the using amount of the phosphogypsum is increased, the pH values of the soil layers are lowered, so that the growth of plants is not facilitated; according to the embodiment 1-5 in the table 2, when the river and lake bottom mud, the phosphorus slag and the humic acid organic fertilizer are selected according to the mass percentage of 54-64 to 16-36, and the phosphogypsum, the steel slag sand and the humic acid organic fertilizer are selected according to the mass percentage of 6-16 to 74-75; the phosphorous slag and the phosphogypsum can act synergistically, the phosphogypsum is acidic, the phosphorous slag is alkaline, and the acidity and the alkalinity of the foreign soil surface layer and the foreign soil base layer can be neutralized and adjusted, so that the soil layer structure is more suitable for plant growth.
Compared with the embodiment 1-5, the comparative example 5 has the advantages that the serrated transition structure is not arranged, the shear strength of the soil layers is reduced, the serrated transition structure between the soil layers increases the stress effect, each layer of soil layer structure is more stable, the strength is higher, and the anti-scouring effect can be effectively realized and the landslide caused by the instability of the side slope can be prevented when the soil layer structure is used as the river channel slope protection.
Comparative examples 5 to 6 compared with example 1, when no steel slag sand was used or no zigzag transition structure was established, the water permeability of the soil layer was reduced, the water permeation and transport efficiency was slow, the plant growth was slow, and the soil layer structure was not suitable for the plant growth. The serrated transition structure and the steel slag sand act together, so that the water permeation and delivery efficiency can be improved, and the water supply of plants can be guaranteed.
Comparative example 7 compared with example 1, when the pitch of the zigzag transition structure becomes small and the depth becomes shallow, the shear strength of the soil layer structure becomes low, and the moisture permeation and transportation efficiency is low, which is not favorable for the growth of plants.
Compared with the embodiment 1, the comparative example 8 has the advantages that the thickness of the middle permeable layer is too thick, so that the middle permeable layer is not suitable for the growth of plant roots, the soil layer strength is reduced, and the middle permeable layer is not suitable for river channel revetment.
Comparative example 9 compared to example 1, with the outsourcing soil, the plant growth was slow and the soil layer shear strength was low.
According to the test results, the preparation method and the soil layer structure provided by the embodiment of the invention are beneficial to the growth of the bermuda grass, the water wettability is good after irrigation, the pH value of soil is weak acid, the internal friction angle in the shear strength is increased, the cohesive force is increased, the soil layer structure is more stable, the germination time of the bermuda grass is early, and the vegetation coverage rate of the foreign soil surface after growth for one month is high.
The soil layer structure of the foreign soil based on the solid waste of the bottom mud of the river and the lake and the phosphorite and the preparation method have wide application prospects in the fields of water environment remediation, ecological restoration of mines and slag yards and the like, and have the following beneficial effects:
(1) Resource utilization of river and lake bottom mud and industrial solid waste
A large amount of desilting bottom mud is generated in the comprehensive water environment treatment process, the open-air stacking occupies land, and secondary pollution to river channels, soil and the like can be generated after long-term rain wash; similar environmental threats can be formed by the land occupation and stockpiling of phosphorus slag, phosphogypsum and steel slag. The soil substitute prepared by the invention takes river and lake dredging bottom mud, phosphorus slag, phosphogypsum, steel slag sand and other solid wastes as raw materials; the river and lake bottom mud is used as a soil dressing base material, the phosphorus slag and the phosphogypsum are used as dehydration conditioning raw materials and alkalinity adjusting materials, the steel slag sand is used for improving the water permeation and transmission efficiency, the solid wastes are used as raw materials for preparing soil dressing, the high-value resource utilization of the wastes is realized, and the ecological benefit is very prominent.
(2) Sustained release of phosphorus for supplying nutrients and regulating pH value
Phosphorus slag and phosphogypsum are a large amount of industrial solid wastes discharged by phosphorite enterprises in China, and the treatment, disposal and resource utilization of the phosphorus slag and the phosphogypsum become important bottlenecks which disturb the innovation and development of the phosphorite enterprises. Compared with other bulk industrial solid wastes, the phosphorus slag and the phosphogypsum both contain a certain amount of soluble phosphorus elements, calcium (Ca), sulfur (S) and other elements, the phosphorus slag, river and lake bottom mud and humic acid organic fertilizers are mixed to be used as soil dressing upper and lower soil layers, the mixture of the phosphogypsum, steel slag sand and humic acid organic fertilizers is used as a water permeable layer, continuous nutrition supply can be provided for plant growth on the surface of the plant-growing concrete, the phosphogypsum is acidic, the phosphorus slag is alkaline, the internal adjustment of the pH value of the upper and lower layers and the middle water permeable layer can be realized, and the material attribute characteristics of various solid wastes are fully utilized.
(3) Excellent in economy
The traditional soil for foreign land is usually prepared by using common soil as a base material and then mixing with proper nutrient fertilizer and/or organic matter, adhesive, water-retaining agent and the like; in developed urban areas, due to the shortage of soil resources in urban areas, outsourced soil is often used as a base material, more nutrition fees and other functional materials are also needed to be doped, factors such as vehicle-mounted transportation, transportation distance and nutrition conditioning are comprehensively considered, and the cost of soil dressing is on the rise. The soil substitute provided by the invention completely depends on local river and lake dredging sediment and industrial solid waste, the cost is obviously reduced, and the economical efficiency is outstanding.
(4) The construction process is simple
In the preparation process of the plant-growing concrete alien soil based on the solid waste of the river and lake bottom mud and the phosphorite, the plant-growing concrete alien soil only needs to be prepared by directly doping a certain proportion of phosphorus slag into the river and lake bottom mud, naturally stacking the phosphorus slag to dehydrate the phosphorus slag, and mechanically and uniformly mixing the phosphorus slag with humic acid organic fertilizer, and has no adverse effect on normal construction.
(5) Easily available raw materials and good economical efficiency
The planting concrete foreign soil based on the river and lake bottom mud and the phosphorite solid waste provided by the invention fully utilizes the river and lake bottom mud, the phosphorite solid waste and the steel slag of the dredging engineering according to the local material utilization principle, widens the resource utilization way of the solid waste, does not need to purchase a soil base material from other places, and has very remarkable economic benefit.
(6) Environmental protection and no pollution
The plant-growing concrete soil provided by the invention fully utilizes river and lake bottom mud and industrial solid wastes of dredging engineering, changes waste into valuable, realizes secondary utilization of waste resources, and reduces the accumulation land occupation; the preparation process of the foreign soil comprises mechanical stirring and natural stacking of the stuffy materials, and has no pollution to the environment.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The soil layer structure is characterized in that the soil layer structure comprises a soil surface layer, a middle permeable layer and a soil base layer from top to bottom in sequence, and the contact surface between the soil surface layer structure and the soil base layer is a zigzag transition structure;
the soil dressing surface layer and the soil dressing base layer both comprise the following raw materials in percentage by mass: 54-64% of river and lake bottom mud, 16-36% of phosphorus slag and 10-20% of humic acid organic fertilizer;
the middle permeable layer comprises the following raw materials in percentage by mass: 6 to 16 percent of phosphogypsum, 74 to 75 percent of steel slag sand and 10 to 20 percent of humic acid organic fertilizer.
2. The foreign soil layer structure of claim 1 wherein said foreign soil surface layer has a thickness of 3-5cm, said intermediate permeable layer has a thickness of 2-4cm, and said foreign soil base layer has a thickness of 2-4cm.
3. A soil layer structure according to claim 1 wherein the jagged transition structure is a serrated groove having a pitch of 0.5 to 0.8cm and a depth of 0.5 to 0.8cm.
4. The structure of a foreign soil layer according to claim 1, wherein the river and lake bottom sludge is desilting bottom sludge or pipe network sludge after water environment remediation, the water content of the river and lake bottom sludge is 75-85%, and the pH value of the river and lake bottom sludge is 6.0-7.5.
5. According to claimThe foreign soil layer structure is characterized in that the fineness of the phosphorous slag is 100-200 meshes and P is 2 O 5 The content is 1.5-3.0%.
6. A subsoil layer structure according to claim 1 characterized in that said phosphogypsum has a pH value comprised between 4.5 and 5.5.
7. A soil layer structure of foreign soil as claimed in claim 1 wherein said steel slag sand is drum steel slag that has been sieved to obtain fine particles of 2.35-5mm in size.
8. Method for producing a soil layer structure of foreign soil according to any of claims 1 to 7, characterized in that it comprises the following steps:
1) Uniformly mixing the river and lake bottom mud and the phosphorus slag, naturally stacking closed materials at a rain sheltering position for 24-48 hours, discharging upper water after precipitation to enable the water content of the river and lake bottom mud to reach 50-55%, and then uniformly mixing the mixture of the river and lake bottom mud and the phosphorus slag with a humic acid organic fertilizer to obtain a material A;
2) Mixing and stirring phosphogypsum, steel slag sand and humic acid organic fertilizer for 30s to obtain a material B;
3) Paving the material A on the surface layer of the vegetation concrete, wherein the paving thickness is 2-4cm, and obtaining the foreign soil base layer;
4) Setting a saw-tooth transition structure with the distance of 0.5-0.8cm and the depth of 0.5-0.8cm on the surface of the soil-dressing base layer paved in the step 3);
5) Laying the material B on the sawtooth-shaped transition structure in the step 4), and laying the material B with the thickness of 2-4cm calculated from the top of the sawtooth-shaped transition structure to obtain the middle permeable layer;
6) Setting a saw-tooth transition structure with the interval of 0.5-0.8cm and the depth of 0.5-0.8cm on the surface of the middle water-permeable layer paved in the step 5);
7) And (3) paving the material A on the sawtooth-shaped transition structure in the step 6), and paving the material A to 3-5cm from the top of the sawtooth-shaped transition structure to obtain the surface layer of the foreign soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110666851.XA CN113396795B (en) | 2021-06-16 | 2021-06-16 | Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110666851.XA CN113396795B (en) | 2021-06-16 | 2021-06-16 | Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113396795A CN113396795A (en) | 2021-09-17 |
| CN113396795B true CN113396795B (en) | 2022-11-25 |
Family
ID=77684372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110666851.XA Active CN113396795B (en) | 2021-06-16 | 2021-06-16 | Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113396795B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114158464A (en) * | 2021-11-30 | 2022-03-11 | 西北农林科技大学 | Ecological restoration system and method for slope vegetation in alpine regions |
| CN114190130A (en) * | 2021-12-15 | 2022-03-18 | 中国科学院武汉岩土力学研究所 | Artificial soil for treating saline-alkali soil and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790851A (en) * | 1993-09-22 | 1995-04-04 | Ibiden Kogyo Kk | Tree planting method for hard slope face |
| CN2603602Y (en) * | 2003-01-23 | 2004-02-18 | 陈国玉 | Composite paper for healthy growth of crops |
| CN101796913A (en) * | 2010-03-29 | 2010-08-11 | 中铁二院工程集团有限责任公司 | Alien soil for slope protection of loess slope plants |
| CN111074912A (en) * | 2019-12-16 | 2020-04-28 | 北京建筑大学 | Composite structure for vegetation restoration and taking porous concrete as foundation layer |
| CN111662722A (en) * | 2020-04-20 | 2020-09-15 | 北京矿冶科技集团有限公司 | Soilless planting substrate for vegetation recovery of metal mine waste rock yard and vegetation recovery construction method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2419432A1 (en) * | 2000-08-16 | 2002-02-21 | Kwong Cheung Lo | System and method for slope stabilization |
| CN101371639B (en) * | 2008-10-09 | 2011-09-28 | 湖北大学 | Surface layer soil for reclamation of mining |
| CN105294039B (en) * | 2015-12-02 | 2017-09-29 | 武汉钢铁有限公司 | A kind of steel slag plant-growing concrete |
| CN205444100U (en) * | 2016-04-06 | 2016-08-10 | 长江水利委员会长江科学院 | Ecological embankment structure with pollute and restore function |
| CN106867544A (en) * | 2017-02-20 | 2017-06-20 | 三川德青科技有限公司 | A kind of soil conditioner prepared with mud and preparation method thereof |
| CN107673464A (en) * | 2017-11-13 | 2018-02-09 | 重庆大学 | A kind of power reoxygenation system of river course staged zero |
| CN107821090B (en) * | 2017-12-27 | 2019-09-27 | 大连地拓环境科技有限公司 | A kind of planting soil and preparation method thereof |
| CN108570993B (en) * | 2018-04-26 | 2020-04-10 | 广东长海建设工程有限公司 | Ecological vegetation concrete slope protection structure and construction method thereof |
-
2021
- 2021-06-16 CN CN202110666851.XA patent/CN113396795B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790851A (en) * | 1993-09-22 | 1995-04-04 | Ibiden Kogyo Kk | Tree planting method for hard slope face |
| CN2603602Y (en) * | 2003-01-23 | 2004-02-18 | 陈国玉 | Composite paper for healthy growth of crops |
| CN101796913A (en) * | 2010-03-29 | 2010-08-11 | 中铁二院工程集团有限责任公司 | Alien soil for slope protection of loess slope plants |
| CN111074912A (en) * | 2019-12-16 | 2020-04-28 | 北京建筑大学 | Composite structure for vegetation restoration and taking porous concrete as foundation layer |
| CN111662722A (en) * | 2020-04-20 | 2020-09-15 | 北京矿冶科技集团有限公司 | Soilless planting substrate for vegetation recovery of metal mine waste rock yard and vegetation recovery construction method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 开发利用磷矿固体废弃物的有效途径和政策研究;王磊等;《矿床地质》;20141215;全文 * |
| 我国高速公路边坡植被防护现状与展望;李云鹏等;《交通运输研究》;20200825(第04期);全文 * |
| 磷渣在高性能水工混凝土中的应用研究;董云等;《人民长江》;20060228;第37卷(第2期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113396795A (en) | 2021-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113396795B (en) | Foreign soil and soil layer structure based on river and lake bottom mud and phosphorite solid waste and preparation method | |
| CN103806454B (en) | Method for pollution control and vegetation recovery of metal sulfide ore solid waste storage yard | |
| CN103643684B (en) | Exposed slope ecological restoration construction method taking fermented sludge as matrix | |
| CN101748719A (en) | Method of vegetation restoration and reconstruction of bare rock slope in East China | |
| CN105839649A (en) | Ecological restoration method for metal mine waste storage yard | |
| CN103636404A (en) | Method for conversing water and earth of high-altitude large-temperature difference drought and dry-hot valley high-abrupt slope waste slag body | |
| CN110698222B (en) | Composite vegetation concrete for ecological protection of stone slope and preparation method thereof | |
| Xu et al. | Characteristics and applications of ecological soil substrate for rocky slope vegetation in cold and high-altitude areas | |
| CN105733604A (en) | Soil conditioner applied to mine ecological restoration in arid region as well as preparation and application methods thereof | |
| CN110454165B (en) | Repair matrix for abandoned mine pits of limestone quarry and preparation method and landfill method thereof | |
| CN107371432B (en) | Method for comprehensively improving beach sandy soil by using biochar soil and building waste soil | |
| CN105714758A (en) | Ecological restoration method applicable to oxidized ore waste-rock yard and capable of realizing acidification control on basis of lake sediment | |
| CN102498772A (en) | Method for in-situ improvement of dredger fill into soil for planting | |
| CN113026770A (en) | Ecological management method for coal gangue dump | |
| CN112772038A (en) | Saline-alkali soil improvement method | |
| CN111647410A (en) | Mine sludge modified material and method for improving degraded land by using same | |
| CN105145038A (en) | Method for repairing vegetation of coal mine storage yard | |
| CN213819073U (en) | Be used for prosthetic grass planting brick of tombarthite tailing and tombarthite tailing environment to restore structure | |
| KR101654044B1 (en) | Afforestation Method for face of slope Using plant soil compostion for afforestation | |
| Koda et al. | Slope erosion control with the use of fly-ash and sewage sludge | |
| CN109673279A (en) | A kind of vegetation cropping pattern controlling the soil erosion of coal gangue hill reclaimed land | |
| KR100765909B1 (en) | Artificial vegetation base-soil compounds for plant and eco-planting method using it | |
| CN113243279A (en) | Coal gangue hill matrix improvement method | |
| CN109618874B (en) | Phosphogypsum vegetation and preparation method thereof | |
| CN112979389A (en) | Garden sludge modification formula and method for improving soil by garden sludge modification formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |