15 results about "Site Remediations" patented technology

The invention relates to a containerized method for the thermal treatment of contaminated solids, pasteous materials, and waste. The system comprises at least one thermally insulated container designed to minimize heat loss and enable material loading from a liftable top panel or a side panel, as well as at least one heat production unit featuring a burner control system and a combustion chamber capable of achieving oxidizing conditions for the complete destruction of contaminants. The method provides simultaneous thermal treatment of materials and vapor-phase contaminant destruction, supported by a ventilation system and a monitoring system for real-time adjustments. In a second aspect, the invention provides a containerized device with comparable operational features, designed for portability and modular deployment, facilitating on-site remediation in remote locations.

The invention relates to a containerized method for the thermal treatment of contaminated solids, pasteous materials, and waste. The system comprises at least one thermally insulated container designed to minimize heat loss and enable material loading from a liftable top panel or a side panel, as well as at least one heat production unit featuring a burner control system and a combustion chamber capable of achieving oxidizing conditions for the complete destruction of contaminants. The method provides simultaneous thermal treatment of materials and vapor-phase contaminant destruction, supported by a ventilation system and a monitoring system for real-time adjustments. In a second aspect, the invention provides a containerized device with comparable operational features, designed for portability and modular deployment, facilitating on-site remediation in remote locations.

The utility model belongs to soil remediation technical field provides a kind of farmland soil on-site remediation device, including support frame, and by upper and lower sequentially arranged on support frame mixing barrel, screening disc, catalytic cylinder;The mixing barrel rotatable is erected in the just above of screening disc, the screening disc top is provided with the feed inlet located the just below of mixing barrel, bottom is provided with the discharge port located the just above of catalytic cylinder, the catalytic cylinder includes the inner tube of top opening and the cover of detachable setting in top opening, the cover bottom is provided with a plurality of interval arrangement's ultraviolet lamp pearl.The utility model provides a kind of farmland soil on-site remediation device, simple structure is convenient for transfer transport, it is suitable for the on-site remediation of farmland soil, it is easy to operate to improve the efficiency of farmland soil on-site remediation, utilize ultraviolet light catalytic digestion pollutant in soil, avoid to cause secondary pollution to soil.

The application provides a simulation method for thermal conduction enhanced gas phase extraction of an organic contaminated site, comprising the following steps: S1, establishing a thermal conduction enhanced gas phase extraction finite element model; S2, meshing the thermal conduction enhanced gas phase extraction finite element model; S3, configuring corresponding parameters according to an actual site remediation process; S4, setting control calculation parameters for the thermal conduction enhanced gas phase extraction finite element model; S5, initializing the thermal conduction enhanced gas phase extraction finite element model under natural conditions; S6, assigning initial concentrations of pollutants to the thermal conduction enhanced gas phase extraction finite element model; and S7, executing a thermal conduction enhanced gas phase extraction numerical simulation program to realize remediation process simulation. The application solves the problem that the existing method cannot realize thermal conduction and gas phase extraction coupled remediation process simulation, can simulate the space-time distribution law of a temperature field and pollutants in a remediation process, and provides a reference and scientific basis for thermal conduction enhanced gas phase extraction remediation of an organic contaminated site.

The invention relates to a containerized method for the thermal treatment of contaminated solids, pasteous materials, and waste. The system comprises at least one thermally insulated container designed to minimize heat loss and enable material loading from a liftable top panel or a side panel, as well as at least one heat production unit featuring a burner control system and a combustion chamber capable of achieving oxidizing conditions for the complete destruction of contaminants. The method provides simultaneous thermal treatment of materials and vapor-phase contaminant destruction, supported by a ventilation system and a monitoring system for real-time adjustments. In a second aspect, the invention provides a containerized device with comparable operational features, designed for portability and modular deployment, facilitating on-site remediation in remote locations.

The invention discloses a method for preparing repair soil based on grading synergy of graphite ore dressing tailing sand and coal gangue and application, and relates to the technical field of solid waste recycling and soil repair. The method comprises the following steps: 1, carrying out targeted pretreatment and quality-divided modification on the graphite ore dressing tailing sand; 2, carrying out multistage purification and value-added treatment on the coal gangue; 3, after physical-chemical coupling pretreatment, inoculating a composite flora, and adopting variable-power microwave to assist activation; 4, adding red mud-humic acid microspheres and coal gangue ceramsite to strengthen the function; the remediation soil is used for heavy metal polluted farmland remediation or mining subsidence land ecological reconstruction. The total solid waste mixing amount is larger than or equal to 90%, the remediation soil has the functions of structure supporting, heavy metal passivation and nutrient maintaining, energy consumption is reduced by 60% or above compared with the prior art, the remediation soil is suitable for contaminated site remediation and mining area reconstruction, and the problems that in the prior art, the function is single, energy consumption is high, and pollution risks exist are solved.

According to the low-permeability medium radionuclide migration multi-parameter synchronous testing device and method, synchronous acquisition of multiple parameters such as the starting pressure gradient lambda, the critical pressure gradient Ge, the permeability coefficient K, the nonlinear index alpha, the distribution coefficient Kd and the vertical dispersion alpha L can be achieved, and the parameter consistency is improved; and system data support is provided for nuclide migration rule analysis. The device provided by the invention can simulate a geological environment with a deep part of more than 500m, and can perform simulation test on migration parameters of key radionuclides such as Cs-137, Co-60, Sr-90, Ni-63, Pu-238 and the like in typical low-permeability rock and soil media such as granite, compact sandstone, argillaceous shale and the like in a preselection area of a low-level waste disposal site in China; test data can be directly used for site selection evaluation of a disposal site, nuclear pollution site repair scheme optimization and other engineering scenes.

The utility model discloses polluted site repairing equipment which comprises a base plate and a lime cylinder, the top of the base plate is connected with the lime cylinder through supporting legs, the base plate is provided with a fixing box on one side of the lime cylinder, the top of the lime cylinder is movably connected with a stirring shaft through a bearing, and the bottom of the lime cylinder is connected with a discharging cylinder in a penetrating mode. The bottom of the discharging barrel is connected with a discharging seat, a vibration assembly for knocking and vibrating the discharging seat is arranged in the fixing box, and the vibration assembly comprises a rack plate for knocking the discharging seat in a reciprocating mode. Lime powder in the discharging base cannot be blocked in a pipeline during discharging, the stirring shaft is synchronously linked to conduct mixing and stirring in the lime barrel, the lime powder in the lime barrel is scattered and mixed, stable discharging of the lime powder is improved, and structural connection is stable and smooth.

The invention discloses a heavy metal contaminated site remediation method, device and equipment and a medium, and belongs to the field of site remediation, the method comprises the steps that the historical process pollutant concentration, the current site pollutant concentration, site remediation carbon data and the current remediation time of a to-be-remedied site are obtained; determining a site remediation stage based on the historical process pollutant concentration and a preset pollutant threshold value, and determining a site remediation stage weight coefficient based on the site remediation stage; determining a current remediation stage based on the current site pollutant concentration and the site remediation stage; based on the current repair time, the current repair stage and the site repair stage weight coefficient, obtaining a site repair stage weight; based on the site restoration stage weight and the site restoration carbon data, obtaining a site restoration score value; and a target remediation strategy is determined based on the site remediation score value, and the to-be-remedied site is remedied based on the target remediation strategy, so that the reliability of low-carbon remediation of the heavy metal contaminated site can be improved.

This invention discloses a method and system for calculating carbon emissions from contaminated site remediation based on multi-source data fusion, belonging to the field of environmental remediation and carbon management technology. The method includes: determining the system boundary for calculating carbon emissions from contaminated site remediation; identifying all potential carbon sources and potential carbon sinks within the system boundary; collecting activity data of potential carbon sources and calculating multi-dimensional carbon source emissions; when remediation technologies include phytoremediation, using the biomass method to calculate the technical carbon sink; analyzing the physicochemical properties of the site soil before and after remediation to calculate the soil carbon pool disturbance; and calculating the net carbon emissions from contaminated site remediation by coupling analysis of carbon sources and carbon sinks. This invention integrates three major carbon flows—"material and energy carbon sources," "technological carbon sinks," and "soil carbon pool disturbance"—into a unified calculation framework. By fusing multi-source data, it achieves accurate quantification of the net carbon effect of remediation activities, providing technical support for the green and low-carbon transformation of the contaminated site remediation industry.

The invention discloses a risk partition-based polluted site differentiated microbial remediation strategy generation method and system, particularly relates to the technical field of management decision of polluted site remediation engineering, and is used for solving the problems of inappropriate remediation resource allocation and low efficiency caused by neglect of site internal risk difference in an existing microbial remediation strategy. Key site background factors influencing the microbial remediation efficiency are identified by obtaining site environment survey data, and potential microbial remediation efficiency response units are divided according to the key site background factors; evaluating the dynamic migration potential of pollutants in each unit to generate a migration risk level, and determining a specific link of the unit in risk transmission in combination with the spatial position of the unit; a microbial remediation technology which is suitable for blocking corresponding risk transmission and is high in ecological integration is screened out from a remediation technology library by evaluating the functional compatibility of the candidate remediation technology and the unit indigenous microbial community; and finally, generating a sub-unit remediation strategy for each unit to form a coordinated and unified overall microbial remediation strategy.

A surface layer improvement system for on-site remediation of contaminated sediments includes: a stabilizer spray unit that performs underwater spraying of a stabilizer to a remediation target region; and a disturbing and mixing unit that induces bioturbation by mixing the stabilizer with the contaminated sediments in water. The disclosure performs the remediation of the contaminated sediments by spraying the stabilizer to the remediation target region of a water bottom floor through the stabilizer spray unit and performing on-site incorporation of the stabilizer sprayed through the disturbing and mixing unit.

The invention discloses a polluted site remediation system and method based on artificial intelligence, and relates to the technical field of environmental engineering. According to the system, a physical flow field with a specific carrier frequency is established for a stratum through a flow field modulation injection subsystem, stratum response signals are collected through a synchronous response monitoring subsystem, and cross-correlation phase-locked demodulation operation is executed through an intelligent control terminal. The system extracts transmission time-lag characteristic parameters of stratum response signals relative to injected carrier waves, the transmission time-lag characteristic parameters serve as the unique physical criterion for identifying the stratum flow channel type, plugging materials are switched to be injected when fracture short-circuit flow is judged, and repairing agents are switched to be injected when matrix seepage flow is judged. According to the method, an active physical excitation and synchronous signal detection mechanism is established, and quantitative sensing and self-adaptive regulation and control of the underground micropore repairing state are achieved under the strong noise background.

The invention relates to a pollution site remediation technology green sustainability evaluation method and device. The method comprises the steps that data of a target remediation project is acquired; wherein the data of the target remediation project comprises data in the process of carrying out soil remediation on the target contaminated site by adopting a target remediation technology, and / or data after carrying out soil remediation on the target contaminated site by adopting the target remediation technology; the data in the soil remediation process comprises soil carbon library data; processing the data of the target repair item, and determining a quantification result of the target repair item in the multiple dimension indexes; wherein the plurality of dimension indexes comprise an environment dimension index, an economic dimension index and a social dimension index; and processing the quantification result of the target repair item in the multiple dimension indexes to obtain a comprehensive benefit evaluation value of the target repair item. According to the method and the device, the dynamic change of the soil carbon library is integrated, and the environmental, economic and social dimension pollution site remediation technology green sustainable evaluation is covered.

The present application relates to the technical field of contaminated soil remediation, and discloses a composite material for halogenated hydrocarbon-heavy metal contaminated site remediation, a preparation method and application thereof.The method comprises emulsifying plant oil, polyoxyethylene sorbitan monooleate, sorbitan monooleate, sludge supernatant, nano zero-valent iron loaded on biochar and water in a mass ratio of 1:0.1-0.3:0.1-0.3:1-2:0.7-2:15-30 to obtain the composite material.The composite material prepared by the method can prevent the agglomeration of nano zero-valent iron particles loaded on biochar, and the composite material can simultaneously use adsorption, biology, chemistry and electrochemistry for halogenated hydrocarbon-heavy metal contaminated site remediation, thereby achieving the effect of efficiently removing heavy metals and halogenated hydrocarbons.