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243results about How to "Effective decontamination" patented technology

Blocking remover for reservoir of oil well

The invention discloses a blocking remover for a reservoir of an oil well. The blocking remover is applied to the technical field of oil extraction in an oil field, comprises an agent A and an agent B, and is characterized in that the weight percentage of the agent A is 25-35%; the weight percentage of the agent B is 65-75%; the agent A comprises the following components by weight: 45-50% of petroleum mixed xylene, 1-2% of nonyl phenol polyoxyethylene (4) ether, and the balance of 0# diesel oil; the agent B comprises the following components by weight: 6-10% of glacial acetic acid or sulfamic acid, 2-2.5% of ammonium bifluoride, 2% of ammonium chloride, 1-2% of citric acid, 1.5-2% of corrosion inhibitor 7801, 3-5% of tertiary butanol, 0.5-1% of octyl phenol polyoxyethylene (10) ether and the balance of water. The blocking remover has the following effects that: the agent A and the agent B are respectively prepared so as to be beneficial to storing the blocking remover for a long time, the agent A of the blocking remover has strong dissolving capacity on crude oil heavy components, such as wax colloid asphalt, and the washing oil efficiency on oil sand is more than 90%. The dissolving rate of the agent B of the blocking remover on carbonate is more than 80%, and the corrosion speed on N80 steel is low and is smaller than 2 g/m<2>.h.
Owner:PETROCHINA CO LTD

Efficient and safe preparation method for active carbon material for adsorbing phosphorus in water body

The invention relates to preparation for an active carbon material, aiming at providing an efficient and safe preparation method for an active carbon material for adsorbing phosphorus in a water body. The method comprises the following steps of: naturally air-drying thalia dealbata for 7 days, chopping, grinding into a powder, sieving, and then placing in an oven and drying for 3 hours; placing the dried powder in a carbonization furnace, performing high-temperature carbonization while charging nitrogen, heating to 500 DEG C, insulating heat for 2 hours, and then cooling to a room temperature; and performing high-temperature activation while charging carbon dioxide gas in the carbonization furnace, heating to 600 DEG C, insulating heat for 2 hours, and then cooling to a room temperature to obtain the product. Via the preparation method disclosed by the invention, the problem of plant waste treatment in water body purification is solved, the possibility that plant branches and leaves contaminate the water body after being withered is prevented, and waste is turned into wealth; and the prepared biomass active carbon is used for further purifying the water body, thus solving the problem of the possibility of secondary pollution in the water body which is purified by active carbon. The preparation method has the advantages of being high in treatment efficiency, economic and practical, green and environment-friendly, cyclic in purification and the like, as well as achieves the expected effect of efficient decontamination.
Owner:ZHEJIANG UNIV

Electrolyte capable of removing nuclear pollution and movable cathode electrochemical cleaning device

The invention discloses electrolyte capable of removing nuclear pollution, which is composed of deionized water and additives, wherein the additives comprise 25-65g/L of sodium sulfate, 25-65 g/L of sodium potassium tartrate tetrahydrate and 5-50 g/L of ethylene diamine tetraacetic acid corresponding to the deionized water. The invention further discloses a movable cathode electrochemical cleaning device, which comprises a handle, a support member, a cathode electrode, a porous material, an electrolyte conveying pipeline and an electrolyte conveying guide line. The handle is arranged on the support member, the cathode electrode is arranged at the bottom of the support member, the porous material is connected at the bottom of the cathode electrode, the electrolyte conveying pipeline and the guide line are both connected with the cathode electrode, and the cathode electrode is provided with a through hole communicated with the porous material. The electrolyte is high in dirt removing rate, short in processing time, small in corrosion on metal devices and materials, can be used for performing electrochemical cleaning processing on metal devices with large volumes or different to move, fast and efficient in dirt removing, few in secondary pollutants and favorable for promotion and application of the electrochemical cleaning technology.
Owner:广东白云国际科学研究院有限公司

Environment-friendly aerobic detergent composition with efficient stain removal and sterilization functions

The invention provides environment-friendly aerobic detergent composition with efficient stain removal and sterilization functions. The environment-friendly aerobic detergent composition is characterized by being prepared from, in percentage by mass, 30%-65% of an active enhancer, 6%-20% of a surfactant, 10%-30% of an external stabilizer and 1%-15% of other aids, wherein the active enhancer comprises a biological enzyme preparation, a whitening agent and an activating agent. The environment-friendly aerobic detergent composition with the efficient stain removal and sterilization functions has good sterilization and stain removal effects, is used in a mild condition, hardly hurts hands, is biodegradable, is particularly suitable for washing of clothes of women and babies and cannot cause skin problems including rash, erythema, decrustation and the like, and the washed clothes are very soft and bright and cannot be coarse; besides, the detergent composition has the advantages that the composition adopts environment-friendly raw materials, doesn't contain phosphorus and is energy-saving, environment-friendly, convenient to use and low in dosage and the like, and is more economical and safer.
Owner:北京华景联化工制品有限责任公司

Dish-washing machine and dish-washing machine control system

The invention relates to kitchen equipment, and specifically relates to a dish-washing machine and a dish-washing machine control system. The dish-washing machine comprises a shell, a rinsing tank, an ultrasonic device, a rotary type dish-washing basket, a spraying device and a processor, wherein the rinsing tank is arranged inside the shell; the ultrasonic device is arranged in the rinsing tank; the rotary type dish-washing basket comprises a dish-washing basket body and a driving device in transmission connection with the dish-washing basket body; the dish-washing basket body is arranged between the top wall of the shell and the rinsing tank; and the part of the dish-washing basket body close to the rinsing tank is located between an opening of the rinsing tank and the bottom wall of the rinsing tank; the spraying device is arranged inside the shell, and located between the top wall of the shell and the rinsing tank; the processor is respectively connected with the driving device and the spraying device. The dish-washing machine control system comprises terminal equipment and the dish-washing machine; the dish-washing machine further comprises a communication device connected with the processor, and the terminal equipment is connected with the communication device. Compared with the prior art, the dish-washing machine and the dish-washing machine control system have the feature of being completely clean in rinsing.
Owner:许伟
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