CN107824610B

CN107824610B - Soil remediation method

Info

Publication number: CN107824610B
Application number: CN201710995299.2A
Authority: CN
Inventors: 汪箭
Original assignee: Shanghai Environmental Energy Conservation Engineering Ltd By Share Ltd
Current assignee: Shanghai environmental energy conservation engineering Limited by Share Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2019-06-07
Anticipated expiration: 2037-10-23
Also published as: CN107824610A

Abstract

The invention discloses a kind of soil remediation methods, comprising the following steps: 1) soil filters: the soil containing rubbish is dug pine by usage mining machine, then will carry out primary filtration to soil using filter screen, usage mining machine is smooth from newly arranging by soil after the completion of filtering.The present invention can filter out most solid matter, especially can not thereby may be ensured that soil conservation is clean by the metal and plastic products of natural decomposition by carrying out primary filtration to soil to be repaired；Lead to a variety of plant poplars to be repaired, plant can be effectively promoted to carry out the absorption of part to the element in soil, to reduce sulphur excessively high in plant, P elements, while grass has stronger vitality, growth is more rapid, can also be converted into nutriment after death.

Description

Soil remediation method

Technical field

The invention belongs to technical field of soil remediation, more particularly, to a kind of soil remediation method.

Background technique

Soil remediation is the technical measures for making to restore by contaminated soil normal function.According to the " complete of publication in 2014 State's Soil Pollution Investigation bulletin ", Chinese soil environmental aspect totally allows of no optimist, and national soil pollution exceeding standard rate reaches 16.1%, on industry and mining discarded ground while soil environment outstanding problem, arable soil environmental quality more causes anxiety.And due to work The fast development of industry, so that not only rubbish residual is more and more in soil, but also heavy metal pollutionization is also further serious, serious broken It is broken ecological environment and environmental quality, even many heavy metals can be also brought in human body by food, influence people's Health.So having become for the reparation of soil and not allowing the problem of delaying instantly.

Summary of the invention

The present invention for overcome the deficiencies in the prior art, provides the soil of a kind of rubbish effectively removed in soil and heavy metal Earth restorative procedure.

To achieve the goals above, the invention adopts the following technical scheme: a kind of soil remediation method, including following step It is rapid:

(1) soil filters: the soil containing rubbish is dug pine by usage mining equipment, and by excavating equipment directly to soil Primary filtration is carried out, the rubbish in soil is removed, completes the primary filtration to soil；

(2) soil disinfection: to by soil sterilants is added in step (1) treated soil, and pass through excavating equipment Soil and soil sterilants are stirred, and second is carried out to soil during stirring and is filtered, it is quiet after the completion of stirring Set reaction 24-72h；The input amount of the soil sterilants is 2.5-3.5kg per acre；

(3) soil remediation: to by soil-repairing agent is added in step (1) treated soil, and pass through excavating equipment Soil and soil-repairing agent are stirred, and third time filtering is carried out to soil during stirring, it is quiet after the completion of stirring Set reaction 24-72h；The input amount of the soil sterilants is 25-35kg per acre.

The present invention effectively carries out disinfection processing to soil by soil sterilants, removes existing harmful mushroom in soil, Soil is repaired by soil-repairing agent again later, effectively eliminates the substances such as existing heavy metal in soil, adjusts soil Ecological environment so that soil is readjusted to the state of suitable planting plants；Secondly, excavating equipment is digging soil and is stirring When mixing soil, processing directly can be filtered to soil, effectively remove the rubbish that can not be degraded present in soil, Restore the ecological environment balance of soil；It directly may be implemented to filter during due to excavation and stirring, without individually setting It sets filter plant and soil is individually filtered, not only the raising working efficiency of high degree, and effectively reduce in engineering Equipment investment reduces engineering cost.

It further include step (4) phytoremediation: by planting India's shepherd's purse, water Wu in treated in step (3) soil One of centipede, ciliate desert-grass are a variety of；Using phytoremediation forwarding method, plant can effectively not cleaned out renovation agent in soil Remaining pesticidal chemical, mercury, lead, the elements such as nickel absorbed, super accumulation is carried out to microelement, restores and to rebuild nature raw State environment guarantees that soil can restore to best plantation state.

Further, the plantation amount of India's shepherd's purse is 1000-1200 plants/acre, and the plantation amount of the kyllinga brevifolia is 1400-1550 plants/acre, the plantation amount of the ciliate desert-grass is 1350-1600 plants/acre；It is obtained after test of many times, it should when using When ratio is planted, mercury in soils, lead, the content of nickel element detected after being repaired is minimum, and plantation is planted after repairing The survival rate highest of quilt.

Further, the soil sterilants by following components by weight percent material composition: 10-20 parts of phosphate, plant ash 10-15 parts, 8-10 parts of wormcast, 5-8 parts of dimethyl disulfide, 5-8 parts of flusulfamide；The sharp spore in soil is effectively killed by flusulfamide Fusariumsp, Phytophthora, pythium, rhizoctonia, then the bacterium, actinomyces and fungi that have in it are thrown to by wormcast and disappeared In soil after poison, the active principle that these microorganisms not only make complex material mineralising plant be easy to absorb, but also synthesize A series of substances for having bioactivity, such as sugar, amino acid, vitamin；To pass through the cooperation between flusulfamide and wormcast, While effectively removing harmful mushroom in soil, increases in soil beneficial to mushroom, improve the plantation survival rate of soil.

Further, the soil-repairing agent by following components by weight percent material composition: 5-8 parts of pentachloronitrobenzene, bone meal 10-15 parts, earthworm 20-25 parts, 5-8 parts of bamboo powder, 4-6 parts of diatomite living；By earthworm living, bamboo powder, diatomite effectively improve through The crop producing power of the soil after disinfection treatment is crossed, so that bigger fertility can be provided when later period planting plants for plant, is improved The survival rate of planting plants；And earthworm can effectively play the effect loosened the soil.

Further, the bamboo powder the preparation method is as follows: obtain bamboo after, bamboo is cut by 1- by cutting machine The bamboo section of 1.5m, splits into the bamboo cane that width is 3-5cm for bamboo section again later；After bamboo cane is cleaned with clear water later, in 85-90 DEG C drying room in drying, bamboo cane is crushed finally by pulverizer, and cross 60 meshes, finally obtain bamboo powder；By drying Reprocessing is bamboo powder after dry, guarantees that the benefit materials in bamboo can sufficiently be discharged to soil, improves the vigor of soil；And 60 Purpose bamboo powder effectively can carry out joint filling, and more uniformly spreading in soil to soil, to be highly suitable as soil The carrier of earth microorganism and organic nutrition composition, can be enhanced soil vitality.

In conclusion the invention has the following advantages: by soil sterilants and soil-repairing agent effectively to soil It is repaired, effectively eliminates the substances such as existing heavy metal in soil, adjust the ecological environment of soil；Secondly, excavating equipment exists When digging soil and stirring soil, processing directly can be filtered to soil, it is not necessary that filter plant is separately provided, greatly The raising working efficiency of degree, and the equipment investment in engineering is effectively reduced, reduce engineering cost.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is bucket body structural schematic diagram of the invention.

Fig. 3 is bucket body structure sectional view of the invention.

Fig. 4 is bucket body structure partial cross-sectional view of the invention.

Specific embodiment

It is right below in conjunction with the embodiment of the present invention in order to make those skilled in the art better understand the present invention program Technical solution in the embodiment of the present invention carries out clear, complete description.

Embodiment 1

A kind of soil remediation method, comprising the following steps: (1) soil filters: usage mining equipment is by the soil containing rubbish Earth digs pine, and directly carries out primary filtration to soil by excavating equipment, removes the rubbish in soil, completes to the preliminary of soil Filtering；(2) soil disinfection: to by soil sterilants is added in step (1) treated soil, and by excavating equipment to soil Earth and soil sterilants are stirred, and are carried out second to soil during stirring and filtered, and are stood after the completion of stirring anti- It should for 24 hours；The input amount of the soil sterilants is 2.5kg per acre；Specifically, the soil sterilants is by following components by weight percent Material composition: 10 parts of phosphate, 10 parts of plant ash, 8 parts of wormcast, 5 parts of dimethyl disulfide, 5 parts of flusulfamide.

(3) soil remediation: to by soil-repairing agent is added in step (1) treated soil, and pass through excavating equipment Soil and soil-repairing agent are stirred, and third time filtering is carried out to soil during stirring, it is quiet after the completion of stirring Set reaction for 24 hours；Wherein, the soil-repairing agent by following components by weight percent material composition: 5 parts of pentachloronitrobenzene, 10 parts of bone meal, 20 parts of earthworm, 5 parts of bamboo powder, 4 parts of diatomite living；The input amount of the soil sterilants is 25kg per acre；Specifically, the bamboo powder The preparation method is as follows: obtain bamboo after, by cutting machine by bamboo be cut into 1m bamboo section, later again by bamboo section split into width Degree is the bamboo cane of 3cm；It after bamboo cane is cleaned with clear water later, is dried in 85 DEG C of drying room, finally by pulverizer by bamboo Item is crushed, and crosses 60 meshes, finally obtains bamboo powder；(4) phytoremediation: by treated in step (3) soil India's shepherd's purse is planted, and the plantation amount of India's shepherd's purse is 1000 plants/acre.

Wherein the excavating equipment includes host 1, swing arm 2 and scraper bowl, which matches with the host 1, is moved The other end of arm 2 is matched with the scraper bowl；Specifically, the scraper bowl includes bucket body 31, the sieving set on bucket floor The 32, first sieving part 33 of mouth, the second sieving part 34 and the vibration for driving the first sieving part and the second sieving part to vibrate Part 35；The first sieving part 33, the structure of the second sieving part 34 are identical, are the filtering that the circle of outer edge one is stainless steel framework Net, the filter screen are that firsthand stainless steel filter screen, stainless steel framework are directly fixed by welding in filter screen on the market On the circle of outer edge one；The vibrating member is firsthand vibration excitor on the market；Further, the vibrating member 35 and described the It is equipped with the first elastic transmission element between one sieving part 33, the second elastic transmission is equipped between vibrating member 35 and the second sieving part 34 Part；Due to the presence of the first, second elastic transmission element, so that the movement that the first, second sieving part is generated when being vibrated is simultaneously Will not be consistent, although so that the first, second sieving part the same vibrating member driving under vibrate, the shifting of the two Dynamic direction can't be consistent, more preferable hence for the effect of soil filtering, not only guarantees that remaining rubbish can be whole in soil It is sifted out, additionally it is possible to effectively break up soil block.

Specifically, first elastic transmission element include the first deck 41 matched with the first sieving part and with this The connected linking arm 42 of first deck, and the linking arm 42 is made of stainless steel, linking arm is equipped with elastic construction；Preferably, The linking arm 42 has the first arm body 421 and the second arm body 422, and the first arm body 421 and the second arm body 422 are mutually perpendicular to shape At the structure of " L " font；On the first arm body 421 and the second arm body 422 respectively by be bent to form it is multiple arch upward 5, phase Neighbour's spacing between 5 that arches upward is equal, these, which arch upward, 5 constitutes the elastic construction, so that the first arm body 421 and the second arm Body 422 is provided with certain flexible and deformation ability；It certainly, can also be in the first arm body 421 and in other embodiments Multiple grooves are respectively set on two arm bodies 422 to form elastic construction, so that the first arm body 421 and the second arm body 422 have one Fixed deformability.

Specifically, second elastic transmission element include the second deck 61 matched with the second sieving part and with this The connected driver plate 62 of second deck, and the driver plate 62 is made of stainless steel, driver plate is equipped with stretching structure；Preferably, The driver plate 62 has the second plate body 621 and the second plate body 622, and the second plate body 621 and the second plate body 622 are mutually perpendicular to shape At the structure of " L " font；On second plate body 621 and the second plate body 622 respectively by be bent to form it is multiple arch upward 5, phase Neighbour's spacing between 5 that arches upward is equal, these, which arch upward, 5 constitutes the stretching structure, so that the second plate body 621 and the second plate Body 622 is provided with certain flexible and deformation ability；It certainly, can also be in the first plate body 621 and in other embodiments Multiple grooves are respectively set on two plate bodys 622 to form stretching structure, so that the first plate body 621 and the second plate body 622 have one Fixed deformability；Preferably, the linking arm 42 is made with the driver plate 62 of a stainless steel plate integrated molding, And stainless steel plate central part has further extended outward an interconnecting piece, the vibrating member is connected with the interconnecting piece.

Further, interior equipped with the operating cavity 7 being connected with the sieving mouth inside the left side of the bucket body 31, and The operating cavity 7 has the first passage 71 matched with first elastic transmission element and matches with second elastic transmission element The second channel 72 of conjunction, the vibrating member are equally placed in the operating cavity；The first passage 71 has 711 He of the first movable chamber It is connected to the placed channel 712 of first movable chamber Yu sieving mouth；Preferably, the height of first movable chamber 711 is greater than described The height of first deck 41, the height of the placed channel 712 are equal to the height of first deck 41；The second channel 72 Limit channels 722 with the second movable chamber 721 and connection second movable chamber and sieving mouth；Preferably, described second is living The height of dynamic chamber 721 is greater than the height of second deck 61, and the height of the limit channels 722 is equal to second deck 61 Height.

The right side of the bucket body 31, which is equipped with, penetrates the first import 36 in bucket body for the first sieving part The second import 37 in bucket body is penetrated with for the second sieving part；It is respectively equipped on first sieving part and the second sieving part Leader, and the first sieving part is greater than the distance of the movable chamber end to the first import 36 plus the width of handle, to work as When first sieving part is completely disposed in scraper bowl, the first deck will be headed into the first movable chamber, the elasticity knot on the second arm body Structure will be compressed, and when the first sieving part is removed, deck will be caught under the effect of the restoring force of elastic construction to placed channel It is interior；Likewise, the second sieving part is greater than the distance of the movable chamber end to the second import 37 plus the width of handle, to work as When second sieving part is completely disposed in scraper bowl, the second deck will be headed into the second movable chamber, the flexible knot on the second arm body Structure will be compressed, and when the second sieving part is removed, deck will be caught under the effect of the restoring force of stretching structure to limit channels It is interior.

Movement in order to guarantee deck is smooth, we are arranged in first movable chamber 711 and 712 junction of placed channel First flared section 713 is provided with second flared section 723 in second movable chamber 721 and 722 junction of limit channels；The One flared section is made of upper and lower two inclined side walls, and the gradient of side wall is from the first movable chamber 711 to placed channel 712 Inclination；Second flared section is also made of upper and lower two inclined side walls, and the gradient of side wall is from the second movable chamber 721 to limit Bit port 722 tilts.

In order to guarantee that the first, second sieving part can generate good vibration, we are arranged in first import 36 First resilient stay 81, first opening sidewalls are equipped with a recessed groove, and first resilient stay 81 is set to In the groove；First resilient stay 81 includes support plate 811 and the elastic component that one end is connected with support plate, and the elastic component is another End is connected with the first groove bottom wall, and elastic component is preferably spring；Preferably, between 811 side of support plate and recess sidewall With gap.

Likewise, we are provided with the second resilient stay 82, the structure of second resilient stay 82 in the second import 37 Identical as the structure of the first resilient stay, so it will not be repeated；Sieving part is dropped out from opening in order to prevent, we should be in scraper bowl sheet On the right side of body be provided with an end cap 9, by the end cap to first, second opening close, the end cap by screw with Bucket body is connected.

Further, the specific structure of the host, swing arm, the connection between swing arm and host, between swing arm and scraper bowl Connection, how scraper bowl, which acts, belongs to the prior art, in detail can be found in Chinese patent CN106759575A disclosed in scheme, therefore It repeats no more.

Embodiment 2

A kind of soil remediation method, comprising the following steps: (1) soil filters: usage mining equipment is by the soil containing rubbish Earth digs pine, and directly carries out primary filtration to soil by excavating equipment, removes the rubbish in soil, completes to the preliminary of soil Filtering；(2) soil disinfection: to by soil sterilants is added in step (1) treated soil, and by excavating equipment to soil Earth and soil sterilants are stirred, and are carried out second to soil during stirring and filtered, and are stood after the completion of stirring anti- Answer 72h；The input amount of the soil sterilants is 3.5kg per acre；Specifically, the soil sterilants is by following components by weight percent Material composition: 20 parts of phosphate, 15 parts of plant ash, 10 parts of wormcast, 8 parts of dimethyl disulfide, 8 parts of flusulfamide.

(3) soil remediation: to by soil-repairing agent is added in step (1) treated soil, and pass through excavating equipment Soil and soil-repairing agent are stirred, and third time filtering is carried out to soil during stirring, it is quiet after the completion of stirring Set reaction 72h；Wherein, the soil-repairing agent by following components by weight percent material composition: 8 parts of pentachloronitrobenzene, 15 parts of bone meal, 25 parts of earthworm, 8 parts of bamboo powder, 6 parts of diatomite living；The input amount of the soil sterilants is 35kg per acre；Specifically, the bamboo powder The preparation method is as follows: obtain bamboo after, by cutting machine by bamboo be cut into 1.5m bamboo section, later again by bamboo section split into Width is the bamboo cane of 5cm；After bamboo cane is cleaned with clear water later, dried in 90 DEG C of drying room, it will finally by pulverizer Bamboo cane is crushed, and crosses 60 meshes, finally obtains bamboo powder；(4) phytoremediation: by treated in step (3) soil Middle plantation kyllinga brevifolia, and the plantation amount of the kyllinga brevifolia is 1500 plants/acre.

The structure of excavating equipment is in the same manner as in Example 1 in the present embodiment, and so it will not be repeated.

Embodiment 3

A kind of soil remediation method, comprising the following steps: (1) soil filters: usage mining equipment is by the soil containing rubbish Earth digs pine, and directly carries out primary filtration to soil by excavating equipment, removes the rubbish in soil, completes to the preliminary of soil Filtering；(2) soil disinfection: to by soil sterilants is added in step (1) treated soil, and by excavating equipment to soil Earth and soil sterilants are stirred, and are carried out second to soil during stirring and filtered, and are stood after the completion of stirring anti- Answer 48h；The input amount of the soil sterilants is 3.5kg per acre；Specifically, the soil sterilants is by following components by weight percent Material composition: 15 parts of phosphate, 10 parts of plant ash, 8 parts of wormcast, 8 parts of dimethyl disulfide, 5 parts of flusulfamide.

(3) soil remediation: to by soil-repairing agent is added in step (1) treated soil, and pass through excavating equipment Soil and soil-repairing agent are stirred, and third time filtering is carried out to soil during stirring, it is quiet after the completion of stirring Set reaction 48h；Wherein, the soil-repairing agent by following components by weight percent material composition: 6 parts of pentachloronitrobenzene, 15 parts of bone meal, 25 parts of earthworm, 5 parts of bamboo powder, 5 parts of diatomite living；The input amount of the soil sterilants is 30kg per acre；Specifically, the bamboo powder The preparation method is as follows: obtain bamboo after, by cutting machine by bamboo be cut into 1.5m bamboo section, later again by bamboo section split into Width is the bamboo cane of 4cm；After bamboo cane is cleaned with clear water later, dried in 90 DEG C of drying room, it will finally by pulverizer Bamboo cane is crushed, and crosses 60 meshes, finally obtains bamboo powder；(4) phytoremediation: by treated in step (3) soil Middle plantation ciliate desert-grass, and the plantation amount of the ciliate desert-grass is 1600 plants/acre.

Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment should fall within the scope of the present invention.

Claims

1. a kind of soil remediation method, comprising the following steps:

(1) soil filters: the soil containing rubbish is dug pine by usage mining equipment, and is directly carried out to soil by excavating equipment Primary filtration removes the rubbish in soil, completes the primary filtration to soil；

(2) soil disinfection: to by soil sterilants is added in step (1) treated soil, and by excavating equipment to soil Earth and soil sterilants are stirred, and are carried out second to soil during stirring and filtered, and are stood after the completion of stirring anti- Answer 24-72h；The input amount of the soil sterilants is 3.5kg per acre, soil sterilants by following components by weight percent substance group At: 20 parts of phosphate, 15 parts of plant ash, 10 parts of wormcast, 8 parts of dimethyl disulfide, 8 parts of flusulfamide；

(3) soil remediation: to by soil-repairing agent is added in step (2) treated soil, and by excavating equipment to soil Earth and soil-repairing agent are stirred, and carry out third time filtering to soil during stirring, are stood after the completion of stirring anti- Answer 24-72h；The input amount of the soil sterilants is 35kg per acre, soil-repairing agent by following components by weight percent material composition: 8 parts of pentachloronitrobenzene, 15 parts of bone meal, 25 parts of earthworm, 8 parts of bamboo powder, 6 parts of diatomite living；Water is planted in soil after treatment Centipede, and the plantation amount of the kyllinga brevifolia is 1500 plants/acre；

The excavating equipment includes host (1), swing arm (2) and scraper bowl, which matches with the host (1), swing arm (2) the other end is matched with the scraper bowl；It is characterized by: the scraper bowl includes bucket body (31), is set to bucket floor Sieving mouth (32), the first sieving part (33), the second sieving part (34) and for drive the first sieving part and the second sieving part hair The vibrating member (35) of raw vibration；The first elastic transmission element is equipped between the vibrating member (35) and the first sieving part (33), The second elastic transmission element is equipped between vibrating member (35) and the second sieving part (34)；First elastic transmission element include with it is described The first deck (41) that first sieving part matches and the linking arm (42) being connected with first deck are set on the linking arm (42) Flexible structure；The linking arm (42) has the first arm body (421) and the second arm body (422), the first arm body (421) and second Arm body (422) is mutually perpendicular to form the structure of " L " font, is respectively separated on the first arm body (421) and the second arm body (422) It arches upward (5) or groove is to form the elastic construction equipped with multiple；Second elastic transmission element includes and described second sieves Filter part the second deck (61) matched and the driver plate (62) being connected with the deck, the driver plate (62) are equipped with flexible knot Structure；The driver plate (62) includes the first plate body (621) and the second plate body (622), the first plate body (621) and the second plate body (622) it is mutually perpendicular to form the structure of " L " font, is respectively separated and is equipped on first plate body (621) and the second plate body (622) It is multiple to arch upward (5) or groove is to form the stretching structure；The linking arm (42) and the driver plate (62) are integrated into Type structure；The first passage (71) there is the first movable chamber (711) for matching with first deck and be connected to this first The placed channel (712) of movable chamber and sieving mouth；The height of first movable chamber (711) is greater than first deck (41) Highly, the height of the placed channel (712) is equal to the height of first deck (41).

2. a kind of soil remediation method according to claim 1, it is characterised in that: the bamboo powder the preparation method is as follows: After obtaining bamboo, bamboo is cut into the bamboo section of 1-1.5m by cutting machine, it is 3-5cm's that bamboo section, which is splitted into width, again later Bamboo cane；It after bamboo cane is cleaned with clear water later, dries in 85-90 DEG C of drying room, carries out bamboo cane finally by pulverizer It crushes, and crosses 60 meshes, finally obtain bamboo powder.