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1436 results about "Soil treatment" patented technology

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.

Preparation method of modified micron zero-valent iron and application method of modified micron zero-valent iron in remediation of heavy metal contaminated soil

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

Method for preventing disease of konjac

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

Treatment and Utilization of Silty Coastal Salt Soil

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

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

Dedicated environment-friendly soil treatment and remediation device for municipal engineering gardens

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

Method for efficiently reducing continuous cropping obstacles of facility soil

InactiveCN102487621AEfficient killingPrevention and treatment of umbilical rotSoil-working methodsContinuous croppingSoil treatment
The invention discloses a method for efficiently reducing the continuous cropping obstacles of greenhouse soil, relating to the technical field of high-efficiency facility agricultural cultivation and meaning a technology of applying calcium cyanamide, organic materials, water and the like in soil before crop sowing or transplanting, and performing a soil reaction in a waiting period in an airtight condition to rapidly and efficiently kill pests in the soil, decrease acidification degree, relieve secondary salinization and increase the utilization rate of nitrogen fertilizer, thereby being capable of efficiently reducing the continuous cropping obstacles of the soil. The method for efficiently reducing the continuous cropping obstacles of greenhouse soil comprises the following steps that: 1) a proper treatment time, wherein soil treatment is performed in the seasons having a daily minimum temperature of not less than 5 DEG C; 2) determination for the dosage of calcium cyanamide, wherein the dosage of calcium cyanamide is usually 20-80 kg in per 667 m<2> of soil; and 3) field operation: (1) broadcasting for organic materials; (2) broadcasting for calcium cyanamide; (3) rotary tillage; (4) furrowing; (5) film coating, water irrigation and sealing; (6) soil reaction; and (7) film opening and airing: after the soil treatment is finished, the film is opened, ventilated or aired, and then crop sowing or transplanting can be performed.
Owner:南京市耕地质量保护站 +1

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 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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