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1439 results about "Soil treatment" patented technology
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Organic Soil Treatment is a soil nutrient made with plant by-products, decomposition extracts and chelated iron. This concentrate can help solve tough lawn problems such as brown spots and pet-urine burns.
Organic soil treatment compound and method of making and using
InactiveUS20110023566A1Promote plant growthImprove scalabilityClimate change adaptationBioloigcal waste fertilisersParticulatesSoil treatment
A composition is provided that includes particulates from wood, chaff, hulls, crop compost, biochar, or waste residue, wood or crop ash and biochar, and a nitrogen source from waste residue from gasification processes, food processing waste water or other residual by-products of forest, aquatic, food or feed processing. Ideally, all of the components are environmentally friendly, from natural products, and free of manufactured chemicals.
Owner:ECOTRAC ORGANICS
Apparatus and method for injecting dry bulk amendments for water and soil treatment
InactiveUS20040042335A1Avoid dischargeReduce laborControlling ratio of multiple fluid flowsFlow mixersSoil treatmentChemical composition
The present invention is an apparatus and method for introducing a dry material into a fluid stream in a way that ensures a predictable, highly accurate and consistent application of the material where the fluid stream may be fixed or variable, where the material is handled and metered in dry bulk form and may be highly soluble or nearly insoluble, and in a manner that continuously and automatically adjusts the application rate to compensate for varying material bulk density, as well as, and in addition to, varying fluid flow rates or chemical composition, in order to provide a precise fluid treatment level at all times. The present invention incorporates the necessary means to store large quantities of the dry process amendment as an integrated and dust-free function of the apparatus and process, and is capable of monitoring and adjusting material levels and introduction rates in real time in response to variations in density, fluid flow rate and / or chemistry composition.
Owner:WASTEWATER SOLUTIONS
Apparatus and method for wireless real time measurement and control of soil and turf conditions
InactiveUS20060178847A1Easy CalibrationLong lastingElectric devicesHops/wine cultivationTransceiverSoil treatment
An apparatus and method are provided for monitoring subsurface soil conditions in real time and communicating data about the subsurface soil conditions to a monitor that analyzes the data to provide warnings to the system operator and to automatically initiate one or more soil treatment processes. The apparatus includes nodes with soil condition sensors and radio transceivers. The nodes are communicatively connected by a network that includes at least one transceiver. The nodes optionally include means for controlling turf treatment devices in response to commands from the computer.
Owner:ADVANCED AERATION SYST
Culturing method for sporocarp of Morchella
ActiveCN105993590ANot easy to bringSimple and fast operationCultivating equipmentsMushroom cultivationBiotechnologySoil treatment
The invention discloses a culturing method for sporocarp of Morchella. The culturing method comprises the following steps: fungal strain preparation, fungal strain culturing, soil treatment, sowing, covering and temperature preservation, management in the growth period of mycelia, fruiting acceleration treatment, management in a fruiting period, and harvesting. According to the invention, operation steps like drawing of fungal strains from a fungal strain bottle or a fungal strain bag, fungal strain hydration, and placement of a large amount of nutrition material bags on the surface of soil in a traditional technology are removed, so the field-cultivation or indoor-cultivation technique for the Morchella is more simple and convenient; the cost of the nutrition material bags is reduced by three fourth or more; the generation cost of cultivation of the Morchella is greatly reduced; the technical difficulty of the cultivation of the Morchella is greatly decreased; and economic benefits are greatly improved.
Owner:SOUTHWEAT UNIV OF SCI & TECH
Novel greenhouse strawberry culturing and planting method
The invention discloses a novel greenhouse strawberry culturing and planting method and relates to the technical field of vegetable and fruit planting. The novel greenhouse strawberry culturing and planting method is characterized by including steps of soil treatment and land bedding before seedling planting, treatment on planting date, requirement setting for specifications of a greenhouse, and field management. The novel greenhouse strawberry culturing and planting method is capable of improving productivity, reducing cost and protecting the environment.
Owner:HUOQIU HONGTUDI FRUIT & VEGETABLE PLANTING SPECIALIZED COOP
Preparation method of modified micron zero-valent iron and application method of modified micron zero-valent iron in remediation of heavy metal contaminated soil
ActiveCN106180735AAvoid secondary pollutionGood dispersionContaminated soil reclamationSoil treatmentSlag
The invention discloses a preparation method of modified micron zero-valent iron and an application method of the modified micron zero-valent iron in remediation of heavy metal contaminated soil. The preparation method of the modified micron zero-valent iron comprises the steps of cleaning of iron raw materials, preparation of micro iron, ultrafine grinding and modifying treatment. A modifying agent composed of water, xanthan gum, sulfide, a stabilizing agent, zeolite and blast furnace slag is adopted in the step of modifying treatment. The preparation method of the modified micron zero-valent iron has the beneficial effects that the production process of the modified micron zero-valent iron is simple, and the effect similar or superior to micron zero-valent iron is achieved while the cost is reduced; and in addition, the reaction activity is controlled, the oxidation rate is decreased, excellent stability is obtained, and the acting time of the micron zero-valent iron is longer. By the adoption of the application method of the modified micron zero-valent iron, the remediation cost of heavy metal contaminated underground water is further reduced. According to the preparation method of the modified micron zero-valent iron and the application method of the modified micron zero-valent iron in remediation of heavy metal contaminated soil, organic fertilizer is added in the soil treatment process so that the fertility of soil can be improved, the structure of soil can be improved through humic acid produced by the organic fertilizer, heavy metal elements, such as lead, chromium and arsenic, in underground water can be removed, and the concentration of pollutants such as nitrate and perchlorate can be reduced.
Owner:CHINESE ACADEMY FOR ENVIRONMENTAL PLANNING
Cultivation method of scutellaria
InactiveCN102349412AImprove qualityGuaranteed qualitySeed and root treatmentSoil-working equipmentsDiseaseSoil treatment
The invention discloses a cultivation method of scutellaria. The method comprises land selection, soil treatment, seed treatment, timely sowing, field management, disease and insect pest prevention and control and picking. According to the scutellaria cultivation method, by selecting an appropriate planting plot and completing soil and seed treatment, a foundation for ensuring high yield and good quality is laid, and the purposes of preserving soil moisture, preventing water evaporation, blocking the sun, controlling drought, preserving heat, preventing freezing, preventing soil hardening, stifling and isolating disease and pest sources and improving the germination rate and the survival rate are fulfilled. By appropriate sowing time, timely field management and timely disease and insect pest prevention and control, the growth of target organ roots of the scutellaria is furthest promoted, the harm of diseases and insect pests is prevented, and the yield of unit area is improved; and by the reasonable picking method, the quality of the scutellaria is ensured, and the economic benefit is high.
Owner:屯留县民康中药材开发有限公司
Apparatus for dust control
A dust-control apparatus may be used in combination with tilling, cultivating, harvesting, construction machinery, and other mobile soil treatment implements. The apparatus applies mist to dust particles where the mist is created by pumping water or other liquid through nozzles. Because the apparatus is used in combination with the operation of the dust-generating machinery, the dust suppressing mist is applied nearly simultaneously to the generation of the dust by the agitation of the soil by the machinery. In one embodiment of the device, the operation of the pump or valves which control liquid flow to the nozzles is automatically activated by a optical sensor. The optical sensors cause either the starting of a pump or opening of a valve thereby increasing or decreasing the pressure and / or volume of the liquid upon the dust level reaching a preset trigger point as detected by the sensor.
Owner:EMBRY LYNN
Method for preventing disease of konjac
InactiveCN102630401APrevent diseaseImprove disease resistancePlant protectionSeed immunisationDiseaseSoil treatment
The invention relates to a method for preventing disease of konjac, and the method comprises the following five aspects of: konjac seed treatment, soil treatment, sowing pre-treatment, a sowing method and field management. The method disclosed by the invention has the beneficial effects that the konjac seed treatment is carried out, thus diseased konjac seeds can be avoided from being mixed and the konjac seeds can be prevented from being infected with a disease; the soil treatment is carried out, thus harmful bacteria can be avoided from being carried in soil, the harmful bacteria in the soil can be killed, and meanwhile the living environment of the harmful bacteria can be destroyed; the sowing pre-treatment is carried out, thus the diseased konjac seeds can be avoided from being mixed, the disease resistance of the konjac seeds can be enhanced, and sprouting and sowing can be used for reducing the opportunity that the harmful bacteria are immersed into the konjac seeds; interplanting can be used for reducing the survival chance of the harmful bacteria and filtering part of sunlight, and a base fertilizer is applied well, thus top dressing can be reduced, and the influence on a konjac plant can be reduced; the filed management can be used for preventing the harmful bacteria from intruding in the whole journey; and a series of comprehensive methods can be used for preventing the disease of the konjac in every aspect.
Owner:重庆天娇农业开发有限公司
Subsurface soil conditioning
InactiveUS6018909AImprove breathabilityGood effectAnalysing fluids using sonic/ultrasonic/infrasonic wavesMaterial analysis by electric/magnetic meansSoil treatmentGolf course turf
Soil profiles of sports fields, such as those in stadiums and golf courses, are treated by injecting or suctioning gases and water by means of buried horizontal pipe arrays or by vertical penetrators. The extent of soil treatment is controlled by measurement of subsurface gas composition and pressure at locations remote from the point of gas injection or removal, preferably by using a special probe. Penetrators and probes form seals within shaped holes in the soil profile, to control the depth of the layer at which gas is exchanged, and to inhibit atmospheric air flow vertically along the bodies of the devices. For example, a conical penetrator section forms a seal within the hole by compacting the shoulder of a stepped hole and it forms a second seal at the surface of the soil by means of a plate and gasket. In other penetrator installations, a radially expansible material forms the seal. Penetrators of one or two part construction may be removably installed in fields, to facilitate re-treatment. Vertical penetrators are also permanently installed and connected by an subterranean pipe array.
Owner:ADVANCED AERATION SYST
Treatment and Utilization of Silty Coastal Salt Soil
InactiveCN102273335AEasy to operateSave resourcesSoil lifting machinesClimate change adaptationSoil treatmentPhosphogypsum
The invention relates a treatment and utilization technology of saline soil resources, in particular to a treatment and utilization method of muddy seashore saline soil. The method comprises the following steps of: establishing a water supply system consisting of a fresh water well, a water pump and a water supply pipe; excavating a salt leaching drainage ditch so as to establish a drainage salt leaching system; applying a cow dung and crop stalk fertilizer and a phosphogypsum soil and fertility improving fertilizer; with a small raised field as unit, irrigating fresh water to wash and leach salt; and planting and maintaining vegetation through cultivating the land by machine, sunning the upturned soil, planting the vegetation and irrigating the vegetation, wherein a planting technology with gradient increasing salt tolerance is adopted in planting the vegetation. According to the invention, for the salinity and structural characteristics of the muddy seashore saline soil, the muddy seashore strongly salined soil in the coastal zone is treated and utilized in combination with engineering measures, physical measures and chemical measures on the basis of salt tolerant plant appraisal; and The treatment and utilization method of the muddy seashore saline soil provided by the invention has the advantages of simplicity in operation, resource conservation, soil treatment and utilization cost of less than 166.21 yuan / m2 and plant survival rate of more than 90%.
Owner:COASTAL AGRI RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
Polluted soil in-situ solidification/stabilization treatment device
PendingCN104532820AReasonable structureCompact structureMechanical machines/dredgersContaminated soil reclamationSoil scienceSoil treatment
The invention relates to a polluted soil in-situ solidification / stabilization treatment device, and belongs to the technical field of polluted site restoration work. The polluted soil in-situ solidification / stabilization treatment device is composed of a crawler excavator, a screening and crushing system, a stirring system, a soil treatment system, a chemical supply system, an operation control system and a pipeline. The screening and crushing system can crush hard soil blocks in polluted soil and screen out stones, plastic and other impurities in the polluted soil, the device can adapt to construction under complex working conditions, and meanwhile continuous operation of the stirring system is guaranteed. The soil treatment system can further remove large-particle matter in the polluted soil, the polluted soil treatment capacity is reduced, and treatment cost is saved. All chemical bins and equipment are integrated on the crawler excavator, and transport and construction are convenient. The polluted soil in-situ solidification / stabilization treatment device integrates earth excavation, soil screening, chemical adding, uniform stirring, site formation and automatic control, and is compact in structure, convenient to operate and high in adaptability and efficiency.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI +1
Soil treatment method for dredged sediment
The invention discloses a soil treatment method for dredged sediment, which comprises a solidification step for the dredged sediment and a soil treatment step for solidified soil. After grinded biomass is mixed with the crushed dredged sediment solidified soil, the requirement on the plant growth can be met through filling treatment for a period of time. Therefore, during the solidification treatment for the sediment, the cost of the solidification treatment is greatly saved only by meeting the requirement of the lowest intensity man-machine cultivation. After the solidification treatment, the crushed biomass is added for mixing so as to regulate the structure and pores of the solidified soil; and the pH value of the solidified soil is reduced by using the characteristics that the biomass is degraded to generate humic acid. Due to the soil treatment method for the dredged sediment, high water content dredged sediment in the flow state can be rapidly converted into soil for greening or planting.
Owner:HOHAI UNIV
Dedicated environment-friendly soil treatment and remediation device for municipal engineering gardens
InactiveCN107583950AReasonable structureInnovative designContaminated soil reclamationGrain treatmentsSoil treatmentPollution soil
The invention discloses a dedicated environment-friendly soil treatment and remediation device for municipal engineering gardens. The dedicated environment-friendly soil treatment and remediation device comprises a remediation box, wherein a fixed frame is arranged at the upper end of an inner wall of the remediation box, a rotary cam is arranged in the middle of the lower end of the fixed frame,the lower end of the rotary cam is in contact with a first idler wheel, a first limit rod is connected to the lower end of the first idler wheel, a first limit plate is arranged in the middle of the lower end of the first limit rod, a first movable rod is arranged in the middle of the lower end of the first limit plate, a lifting plate is connected to the tail end of the first movable rod, long smashing plates and short smashing plates are evenly arranged at the lower end of the lifting plate, the right end of the rotary cam is in contact with a second idler wheel, a second limit rod is arranged in the middle of the right end of the second idler wheel, a second limit plate is arranged at the right end of the second limit rod, a second movable rod is arranged in the middle of the right endof the second limit plate, and a piston plate is arranged at the right end of the second movable rod. The dedicated environment-friendly soil treatment and remediation device achieves smashing, chemical spraying and remediating effects on polluted soil, improves a remediation effect on garden soil and meets a requirement in remediating the soil in large scale.
Owner:刘彬
Oil soil treatment technique for tank cleaning
InactiveCN101041541AHigh recovery rateEfficient recyclingSludge treatmentMultistage water/sewage treatmentSoil treatmentAdhesive
The invention discloses a disposing craft of tank-cleaning oil sludge, which comprises the following steps: putting tank-cleaning oil sludge into one and two grade homogeneous machine; adding into extracting agent at finite ratio; heating; stirring; proceeding once and twice solid-liquid separation in centrifuge; leading into water-oil separating tank; proceeding settling segregation; separating out of oil, wastewater and sand; proceeding continuous extraction; handling; discharging; burning; biological degrading; or using as process-type adhesive.
Owner:LIAOHE GASOLINEEUM EXPLORATION BUREAU
Side folding toolbar for chemical applicator
A multi-row agricultural soil treatment implement includes a semi-trailed carriage and a rearward folding toolbar. The toolbar is suspended from the semi-trailed carriage through parallel links and includes a center section, flex hinges, main wings, main wing latches, and outer flip wings operatively connected to hydraulic cylinders to move them between transport and field position. The main wings fold rearward relative to the center section and are supported by a transport rack but they retain the ability to pivot up or down as needed for ground contour following capability or row end turning.
Owner:FAST DISTRIBUTING +1
Online high efficient soil treatment apparatus
InactiveCN107891056AUniform governanceEnsure continuityContaminated soil reclamationTreatment effectSoil treatment
The invention discloses an online high efficient soil treatment apparatus, which comprises a driving box, a rotation roller, an active belt wheel, a crankshaft, cylinder bodies, a spraying pipe, and aliquid storage box. A first support and a second support are symmetrically fixed on the left side and right side of the bottom of the driving box. The rotation roller is rotatingly connected to the first support through a rotation shaft. The active belt wheel is arranged in the driving box. Two cylinder bodies are fixed on the wall of the inner cavity of the driving box. The spraying pipe is in an L shape and is fixed on the bottom of the driving box through a pipe support. Through a soil turning blade, soil is sprayed so as to completely disperse the soil, thus soil can fully contact with arestoration liquid, the soil is evenly processed, the treatment effect is improved; due to the linkage design, soil turning and soil spraying can be performed simultaneously, the continuous work is guaranteed, at the same time, an online treatment mode is adopted, and the work efficiency is largely improved.
Owner:ZHENGZHOU MOORE ELECTRONICS INFORMATION TECH CO LTD
Method for efficiently reducing continuous cropping obstacles of facility soil
InactiveCN102487621AEfficient killingPrevention and treatment of umbilical rotSoil-working methodsContinuous croppingSoil treatment
Owner:南京市耕地质量保护站 +1
Heavy metal pollution soil treatment system and process
InactiveCN107309256ASimple structureClean thoroughlyContaminated soil reclamationMagnetic separationSoil treatmentPollution soil
The invention discloses and provides a heavy metal polluted soil treatment system and process, aiming to solve the screening problem of magnetic heavy metal pollutants in polluted soil, which includes a first crushing and screening mechanism, a second crushing and screening mechanism, and a transfer and conveying mechanism And the lifting mechanism, through the oblique lifting and throwing of the heavy metal contaminated soil after the initial crushing to the screening rake with magnetic adsorption, the secondary crushing of the heavy metal contaminated soil is carried out by the screening rake, and the heavy metal contaminated soil is sucked out by magnetic adsorption The magnetic heavy metals contained in it improve the quality and efficiency of heavy metal pollutants in the subsequent treatment process.
Owner:浙江明境环保科技集团有限公司
Thick collapsible loess subgrade groundwork structure
The invention discloses a deep collapsible loess subgrade structure, which can strictly control the post-construction settlement and differential settlement of the collapsible loess and the deep collapsible loess foundation. It includes reinforced concrete pile foundations (10), which are arranged in groups at intervals along the longitudinal direction of the foundation, and the pile bodies are consolidated with the bearing layer after penetrating the soil vertically; The top of the foundation (10) is rigidly connected thereto; the reinforced concrete cap slab (30), extending longitudinally along the foundation, is supported on and connected to the reinforced concrete joist (20). The invention uses the pile-slab system as a reinforcement structure, which has the characteristics of strong adaptability, good overall performance, high rigidity, small deformation, large depth of untreated soil, and convenient construction, and successfully solves the problems of uneven settlement caused by collapsing The technical problem of excessive settlement can well meet the design requirements of passenger-dedicated railways with a design speed of 300-350 kilometers per hour.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD
Rapid high-yield culture technique for typhonium giganteum
InactiveCN106386153AImprove utilization efficiencyReduce shadePlant cultivationCultivating equipmentsLand consolidationSoil treatment
The invention belongs to the field of traditional Chinese medicine planting and in particular relates to a rapid high-yield culture technique for typhonium giganteum. The rapid high-yield culture technique for the typhonium giganteum comprises the following steps: S1, selecting a planting site; S2, building a sunshelter; S3, carrying out land consolidation and soil treatment; S4, flatting land and bedding; S5, carrying out seed seedling raising; S6, transplanting young seedlings; S7, transplanting big seedlings; S8, carrying out field management; and S9, carrying out pest control. The rapid high-yield culture technique for the typhonium giganteum, provided by the invention, has the advantages that a production period of 9-10 years from seeds to a medicinal material finished product during the conventional cultivation of the typhonium giganteum is shortened to 6.5 years, and time is shortened by 2.5-3.5 years; and rational close planting is carried out, so that land, an implanting material and equipment are saved, water and fertilizer use efficiency is improved, and productivity is increased.
Owner:玉龙县垚润生物开发有限公司
Evaporative desorption soil treatment apparatus and process
InactiveUS20030147697A1Improve efficiencyEliminate latent heatDrying solid materials with heatContaminated soil reclamationSoil treatmentSoil science
Treatment apparatus and a process for thermal desorption of hydrocarbon contaminants from excavated soil provides efficient contaminant removal by handling the soil in a thermally conductive treatment vessel that fits within an insulated treatment chamber. The soil is treated in this chamber with fresh air that is dried and electrically heated prior to contacting the treatment vessel. Excavating the soil directly into the treatment vessel allows the treated soil to be returned to the final disposition site in the same vessel, minimizing soil handling
Owner:BRADY PATRICK RICHARD +2
Sludge or soil treatment method and heavy metal component stabilizing agent
InactiveCN104098237AEasy to handleSafe handlingSludge treatment by de-watering/drying/thickeningSolid waste disposalAlkaline earth metalSoil treatment
The invention provides a stabilizing treatment method for heavy metal components in sludge; according to the method, a heavy metal component stabilizing agent is selected for stabilizing treatment of the heavy metal components in the sludge, wherein the heavy metal component stabilizing agent comprises at least 1 acidic metal salts of iron, zinc, copper, manganese and aluminum and at least 1 alkali metal or alkaline earth metal alkali compound of calcium, magnesium, sodium and potassium, the mixing ratio of heavy metal component stabilizing agent and sludge is: 100 parts by weight of sludge corresponding to 0.5 ~ 30 parts by weight of the acidic metal salt and 0.5-60 parts by weight of the alkali metal or alkaline earth metal alkali compound. By use of the method, stabilizing treatment of trace heavy metal lead and other harmful ingredients contained in the sludge produced from a factory and the like can be easily performed, the processed sludge can be used for purposes such as landfill and the like, the heavy metal harmful ingredients contained in the stabilizing treated may not dissolved from the sludge, so that the environment can be protected.
Owner:AKUER TRADING SHANGHAI
Contaminated soil restoration treatment device
InactiveCN107457268AImprove governance efficiencyReasonable designContaminated soil reclamationGrain treatmentsSoil treatmentPollution soil
The invention discloses a contaminated soil restoration treatment device. The contaminated soil restoration treatment device comprises a vehicle body, wherein a soil excavator, a centrifugal device, a stirring device, a microorganism decomposition device, a heating unit and a curing box are arranged on the vehicle body, the stirring device comprises a stirring shell, a crushing device, a rotary motor, a rotating shaft, a stirring rod and a crushing blade, the crushing device comprises a crushing motor, a crushing shaft and a crushing blade, and the heating unit comprises a heating box, a heater and a temperature controller. According to the contaminated soil restoration treatment device, the mobility is good, onsite treatment on a contaminated soil site is carried out, and contaminated soil can be analyzed, so that an optimal treatment chemical is obtained; irrelevant garbage is separated by virtue of the centrifugal device and cannot be taken into other treatment devices, so that soil treatment efficiency is improved; and the device adopts multiple ways such as the chemical and microorganisms for treating the contaminated soil, treatment effect can be more obvious, and the heating unit adopts a thermal desorption technology for removing organic pollution in the soil.
Owner:李林
High-yield planting method for sugarcane
InactiveCN105474956APromote divisionPromotes division, compared to normal plant growthCalcareous fertilisersSeed and root treatmentBacillus licheniformisSoil treatment
The invention discloses a high-yield planting method for sugarcane. The method comprises the steps of soil treatment before planting, wherein soil is scarified, planting ditches with the depth of 40-50 cm and the line spacing of 65-70 cm are dug and filled with lime water for soaking, and organic fertilizer is applied into the planting ditches according to 70-80 kg / mu and covered with soil; pretreatment of sugarcane sprouts; planting of the sugarcane sprouts, wherein the pretreated sugarcane sprouts are placed in the planting ditches the third day after the organic fertilizer is applied, 28-30 sugarcane sprouts are planted per meter in each planting ditch and covered with soil, and then a layer of 1-2 cm ferment soil is laid on the surface soil and covered with film with the thickness of 0.015 mm; the ferment soil is prepared by mixing broad-leaved tree fallen leaves, shell powder, straw, photosynthetic bacteria, bacillus subtilis and bacillus licheniformis according to the mass ratio of 60-70 to 20-30 to 25-30 to 1-3 to 1 to 1. Through the high-yield planting method, the survival rate of sugarcane seedlings and the yield of sugarcane are increased.
Owner:扶绥县科学技术局
Method and device for biochemically recharging and restoring polluted soils in chromium slag yard
The invention discloses method and device for biochemically recharging and restoring polluted soils in a chromium slag yard. The device comprises a soil treatment groove containing soils to be treated, a middle pond, a biochemical pond and a bacteria culture pond. Every two parts are connected through a water pipe, chromium polluted soils are installed in the soil treatment groove to be heaped after being crushed by a 2cm sieve, the height of a mound is smaller than 0.8m, and the soils are sprayed by Cr (VI) reducing bacteria (Pannonibacter phragmitetus BB) culture medium with the spraying strength of 0.008-0.015m<3> / h.m<2>; and leachate is collected from the bottom of a soil groove to the middle pond, bacterial liquid in the middle pond is pumped into the biochemical pond by an alkali resistance pump, and bacterial liquid in the biochemical pond circulates again to be used for spraying the soils and is in circulating spraying for 5-7 days until the soil leachate does not contain Cr (VI). By adopting the invention to restore the polluted soils in the chromium slag yard, the removal rate of water-soluble Cr (VI) in the soils achieves 99 percent, and the concentration of Cr (VI) leaching toxicity in the soils after restoring is lower than 0.5mg / L and achieves a standard limited value of roadbed materials and concrete aggregates in Technical Specifications for Chromium Slag Pollution Control (HJ / T301-2007). Simultaneously, the invention has the advantages of having simple technology, low cost and no secondary pollution, improving the physicochemical property of the soils, and the like.
Owner:CENT SOUTH UNIV
Method for repairing heavy metal polluted soil based on permeation absorption wall
InactiveCN106623401AImprove fertilityEasy to recycleContaminated soil reclamationMolecular sieveBrick
The invention relates to a method for repairing heavy metal polluted soil based on a permeation absorption wall. The method specifically comprises the steps of: construction of the permeation absorption wall, soil leaching, heavy metal enrichment, regeneration of the permeation absorption wall, and heavy metal recovery. Compared with the prior art, the used permeation absorption wall is a movable assembled permeation absorption wall built by absorption bricks, which are produced through a forming process by adding a binding agent in such absorption materials as fly ash, clay and molecular sieves; the permeation absorption wall is spliced as cuboids with different specifications; and the method is combined with a chemical leaching method to exert the effects of leaching, absorption and heavy metal enrichment, can be used for a soil ectopia repair engineering technology, protects underground water, and shortens the soil repair treatment period. The method combines a physical method with a chemical method, is cheap in raw materials, easy to obtain the raw materials and low in operation cost, treats wastes by wastes, is short in soil treatment period, is obvious in energy saving advantages, and is broad in application prospect.
Owner:SHANGHAI LVQIANG NEW MATERIALS CO LTD +1
Method collaboratively repairing soil heavy metal pollution by microorganisms, plants and biological carbon
ActiveCN105149345APrevent backIncrease added valueContaminated soil reclamationMetal pollutionSoil treatment
The invention provides a method collaboratively repairing soil heavy metal pollution by microorganisms, plants and biological carbon. The method specifically comprises: 1), adding a magnetotactic bacterium culture medium into heavy metal polluted soil, inoculating magnetotactic bacteria, and plowing; 2), irrigating the heavy metal polluted soil, and setting a magnetic field; 3), collecting the surface layer of the heavy metal polluted soil, and rinsing the collected heavy metal polluted soil with water; 4), planting grass family plants in the heavy metal polluted soil; 5), pulling out young ears; 6), removing the grass family plants; 7), after preparing a biological carbon mixture through processing the removed grass family plants, applying the biological carbon mixture into the heavy metal polluted soil in which the grass family plants are planted, uniformly mixing, and aging; and 8), cyclically repeating the above steps until the content of heavy metal in the soil reaches safety standards. The method is great in soil treatment effect, low in cost and high in practicability, and is safe and reliable.
Owner:HUNAN XISI ECOLOGY TECH
Method for treating deep soft soil foundation by combining chemical electro-osmosis method and vacuum preloading method
InactiveCN102094414AHigh strengthAccelerate the rate of consolidationSoil preservationChemical solutionChemical reaction
The invention discloses a method for treating a deep soft soil foundation by combining a chemical electro-osmosis method and a vacuum preloading method. In the method, vertical porous drain pipes and metal electrodes are inserted and chemical solution is injected into the soft soil foundation, horizontal drain boards and seal geomembranes are laid on the top of a soil layer, direct current is supplied, vacuumization is carried out, and under the action of direct-current electric field force, water with positive charge and cation solution flow to a cathode and anion solution with negative charge flows to an anode to form electro-osmosis and chemical reaction; meanwhile, under the action of internal and external pressure difference formed through vacuumization, water is quickly discharged from the drain pipe in which the cathode is positioned; and the solidification and compactness of the foundation soil are accelerated and the soil strength of the soil is improved. Compared with the common vacuum preloading method, the method has the advantages that: the soft soil treatment depth is increased, the deep layer of the soil of which the vacuum degree is difficult to reduced can be reached, and under the action of the direct-current electric field force, the solidification rate of the soil is improved and the construction period is shortened. Through the method, the construction process is simple, the operability is high, the construction period is short, the quality control and detection are facilitated, and the soil strength is improved obviously.
Owner:HOHAI UNIV
Desertification soil treatment method
InactiveCN104196006APlay the role of windbreak and sand fixationFree from sand burialClimate change adaptationHorticultureVegetationProtection forest
The invention provides a desertification soil treatment method. The desertification soil treatment method comprises the following steps that a vegetation zone formed by alternately laying and planting ecological vegetation carpets and protection forests is laid on desertification soil along the border between the desertification soil and vegetation towards a desert; a wood retaining wall is erected on the vegetation zone; ecological vegetation ditches and a water storage tank are formed, and supporting wood plates covered with ecological vegetation carpets are laid on the ecological vegetation ditches and the water storage tank; a water pipe provided with spray nozzles is laid, the water pipe is connected with a water pump, and a pumping pipe of the water pump extends into the water storage tank; following management and maintenance are conducted on the laid vegetation zone. By the adoption of the desertification soil treatment method, the desertification soil treatment effect can be achieved by executing the desertification soil treatment method once, after grass seeds and protection forest plants grow well, the texture of the desertification soil can be fundamentally changed, treatment is thorough, and devices used during treatment can be detached and recycled. According to the desertification soil treatment method, effectiveness can be achieved quickly, the period is short, operation is easy, the treatment cost is low, the rate of survival of planted vegetation is high, and the planted vegetation is easy to manage and maintain in the later period.
Owner:WUHAN GAN SHI DAI ENVIRONMENT RESOURCE TECHCO
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