77 results about "Hydrocarbon pollution" patented technology

A gas (1) comprising hydrogen sulfide, carbon dioxide, and hydrocarbon contaminants is treated in a plant (FIG. 2) in a configuration in which waste streams are recycled to extinction. In especially preferred aspects of contemplated methods and configurations, hydrogen sulfide and other sulfurous components are converted to a sulfur product (37), carbon dioxide (44A) is separated at a purity sufficient for enhanced oil recovery or sale, and hydrocarbon contaminants are purified to a marketable hydrocarbon product (49).

The invention relates to a method for restoring oil polluted wet land by combination of plant and microorganism. The method concretely includes: soil of oil polluted wet land to be restored is collected, autochthonous oil-munching bacterium screening is carried out by utilizing an inorganic salt culture medium containing the oil contamination, the culture and screening of autochthonous oil-munching bacterium are enlarged, and the autochthonous oil-munching bacterium is made into active bacterium preparation with OD600 of about 1.5 by adopting nutrition substrate with the urea concentration of 40g / L and the calcium superphosphate concentration of 15g / L; scripus triqueter seedling or scripus triqueter seed is planted in the oil polluted wetland soil, and planting density is 2500-5000 plants / m2; when seedling grows vigorously, the active bacterium preparation obtained by the step a is added into the root system soil planted with scripus triqueter seedling according to the mass ratio of about 100:1, when flowering period and mature period are finished, under the combined action of oil-munching bacteria and root system of plant, the oil polluted wet land is restored. Compared with the traditional soil management method, the method of the invention has the advantages of less investment, less work amount, low technical requirement and no secondary pollution. The restoring process not only can not destroy soil entironment but also is beneficial to improving soil degradation and productivity reduction which are caused by petroleum hydrocarbon pollution and recovering and improving biodiversity of soil.

The invention relates to a hydrocarbon polluted shallow groundwater magnetic resonance detection device and a hydrocarbon polluted shallow groundwater magnetic resonance detection method. According to the detection device, a computer is respectively connected with a transmission logic and control unit, an MCU (Microprogrammed Control Unit) and a signal acquisition card; a 24V battery is connected with a signal regulation circuit by virtue of a DCDC (Direct Current Direct Current) module, a transmission logic and control unit, the MCU and the signal acquisition card; an energy storage transmission unit is connected with the transmission logic and control unit; the energy storage transmission unit is connected with the signal regulation circuit by virtue of a voltage-current acquisition unit 7 and the MCU. By adopting the detection device, non-intrusive quantitative qualitative measurement is achieved, and testing result can be rapidly obtained on site. The intensity of a local magnetic field is improved by virtue of a permanent magnet, magnetic resonance measurement can be carried out at places with intensive electric power interference, the signal to noise ratio can be effectively improved, the constraint that the magnetic resonance exploration cannot be carried out because of intensive electric power interference is broken, and the defect that the result is not correct because of nonuniform magnetic field can be effectively overcome by use of spin echo pulse. Hydrocarbon pollution within 5m underground can be rapidly and accurately detected.

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. The dry air passes through the soil and the air mixed with contaminants is withdrawn from the chamber through piping in 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.

Provided herein are couplings useful in the transfer of liquid fuels from a remote storage reservoir to an on-board fuel tank of a motorized vehicle. There is provided a first coupling which is adapted to be in fluid communication with the interior of a vehicle's fuel tank, and a second coupling which is intended to be in fluid communication with the contents of a remote fuel storage reservoir. The invention also includes a process for charging a fuel reservoir on board of a motorized vehicle from a remote reservoir, wherein the vapor in the fuel reservoir is displaced by an equal volume of fuel delivered from said remote reservoir, and wherein the vapor in said fuel reservoir is simultaneously caused to be transferred to said remote reservoir, thus permitting no escape of the vapor from said fuel reservoir to the surrounding atmosphere. Through use of the present invention, spills of fuel are essentially eliminated, and the escape of vapors from the vehicle's fuel tank are prevented, thus preventing atmospheric hydrocarbon pollution.

The invention discloses an in-situ detection system for straight section distribution of petroleum hydrocarbon contaminants at contaminated sites, and creates an in situ detection system for straightsection distribution of petroleum hydrocarbon contaminants at contaminated sites based on the induced fluorescence technology aiming at urgent needs for the real-time in-situ measurement technology ofstraight section distribution of contaminants, such as treatment and restoration of contaminated sites, and contaminated situation survey for the sites. The invention uses high-energy ultraviolet LEDs of 270nm and 320nm to in-situ excite the petroleum hydrocarbon contaminants in the deep of the contaminated sites to detect fluorescence signals with the wavelengths of 350nm and 450nm, and uses a characteristic fluorescence spectrum of petroleum hydrocarbon to invert the concentration of the contaminants in real time to realize real-time and in-site detection of straight section distribution ofpetroleum hydrocarbon contaminants at sites. The invention has a cylindrical shell and a drill bit that can drill deep into the soil using a soil drill. In the process of using the technology, thereis no need of a reagent, no secondary pollution, and no tedious sample pretreatment and detection process, which can significantly improve the efficiency of the detection of petroleum hydrocarbon pollution at sites.

The invention relates to the bioremediation technical field of the petroleum hydrocarbon pollution, and discloses stenotrophomonas maltophilia, microbial inoculum containing the stenotrophomonas maltophilia and an application in diesel degradation and a diesel-degrading method. The preservation number of the stenotrophomonas maltophilia is CGMCC NO:10846. The diesel-degrading method comprises the following steps: contacting the stenotrophomonas maltophilia with the preservation number CGMCC NO:10846 and / or the microbial inoculum containing the stenotrophomonas maltophilia with the preservation number CGMCC NO:10846 with a diesel pollution sample, and degrading the diesel in the diesel pollution sample. The stenotrophomonas maltophilia is capable of effectively tolerating and degrading the high-concentration diesel compositions in the liquid phase and soil phase without adding carbon resources, with lower requirements for other elements, such as nitrogen and phosphorus, and is suitable for the high-concentration diesel bioremediation process of dead soil and dystrophic industrial wastewater.

Presented herein are compositions including a linear tenso-active surfactant which, upon contact and mechanical stirring of a hydrocarbon body, induces emulsification, resulting in oxidation of fatty acid aliphatic bodies. The compositions solve the problem of hydrocarbon pollution. The hydrocarbon decomposer and its by-products dissolve hydrocarbons present in polluted bodies such as clays, soils, water and sand. Methods of the invention create a residue that is a fertilizer, at room temperature and with no need for high pressure.

The present invention provides a petroleum hydrocarbon pollution removal composition and applications thereof, wherein the composition comprises persulfate and copper nanoparticles (CuNPs), and the persulfate and the copper nanoparticles (CuNPs) are separately sub-packaged. According to the present invention, the copper nanoparticles prepared by using the DNA template have a particle size of 23+ / -8 nm, and the preparation method is simple and rapid; the mass concentration ratio of the persulfate to the DNA-CuNPs colloidal solution is 0.1 g / L:(10-20) equivalent; with the novel persulfate oxidation system provided by the invention, the efficient degradation of the difficultly-degraded pollutant component polycyclic aromatic hydrocarbon pyrene in the petroleum hydrocarbon can be achieved under the mild room temperature condition, the chemical sludge is almost not generated within the neutral and alkaline pH value range, and the problems of the difficult treatment of the iron mud in the traditional homogeneous catalyst system and secondary pollution caused by the use of a large amount of the traditional homogeneous catalyst system are solved to a certain extent.

A fluid processing device is provided for recycling a previously used water and glycol containing fluid by removing contaminants including hydrocarbon, metals, particulates and water contaminants from the water and glycol containing fluid. The device includes a particulate filter for removing particulates, an activated carbon filter for removing hydrocarbon contaminants, a micron-sized filter for removing at least one of particulate and metal contaminants, a high pressure membrane filter for removing contaminants and water, and a heater for heating the glycol containing fluid to a temperature at least near the boiling point of water in a predetermined reduced pressure atmosphere. The device also includes a low pressure separator having a tank kept generally at or near the predetermined reduced pressure for removing additional water from the water and glycol containing fluid. The low pressure separator includes a first exit port for removing separated water from the separator as steam, and a second exit port for removing substantially water free glycol based fluid from the low pressure separator.

The invention relates to a hydrocarbon polluted shallow groundwater magnetic resonance detection device and a hydrocarbon polluted shallow groundwater magnetic resonance detection method. According to the detection device, a computer is respectively connected with a transmission logic and control unit, an MCU (Microprogrammed Control Unit) and a signal acquisition card; a 24V battery is connected with a signal regulation circuit by virtue of a DCDC (Direct Current Direct Current) module, a transmission logic and control unit, the MCU and the signal acquisition card; an energy storage transmission unit is connected with the transmission logic and control unit; the energy storage transmission unit is connected with the signal regulation circuit by virtue of a voltage-current acquisition unit 7 and the MCU. By adopting the detection device, non-intrusive quantitative qualitative measurement is achieved, and testing result can be rapidly obtained on site. The intensity of a local magnetic field is improved by virtue of a permanent magnet, magnetic resonance measurement can be carried out at places with intensive electric power interference, the signal to noise ratio can be effectively improved, the constraint that the magnetic resonance exploration cannot be carried out because of intensive electric power interference is broken, and the defect that the result is not correct because of nonuniform magnetic field can be effectively overcome by use of spin echo pulse. Hydrocarbon pollution within 5m underground can be rapidly and accurately detected.

Methods for identifying hydrocarbon contamination sources may include fingerprinting hydrocarbons using isotopocule analyses for BTEX compounds. For example, methods for identifying hydrocarbon contamination sources may comprise: extracting BTEX compounds from a sample; measuring the isotopocule composition of the BTEX compounds; and determining a characteristic of the sample based on the isotopocule composition. Such characteristics may include, but are not limited to, the characteristic of the sample comprises one or more selected from the group consisting of: a source of the sample, a condition at which the sample formed or was last equilibrated, a migration time from a source to a sample location, weathering of the sample, and degree to which the sample is anthropogenic and naturally-occurring.