128results about How to "High oil removal rate" patented technology

The invention discloses a method for oil sludge tempering and solidification pelletizing. The method comprises the steps that oil sludge is injected into an oil sludge concentration pot to be subjected to demulsification, flocculation, settling and separation, oil sludge containing water on the lower portion and a flocculation modifying agent are mixed and then enter a horizontal type spiral centrifugal machine to be separated, separation liquid enters a pressure filter to be filtered under pressure, an obtained filter cake and an oil sludge cake obtained through centrifugal separation are mixed to be used as oil sludge to be treated, and the oil sludge, a solidifying agent and a tempering addition agent are mixed to form an uniform-form material to be added into a pelletizer to be pelletized. The compatibility and miscible adsorbability are improved, a guarantee is provided for harmless treatment and resource utilization of oil sludge, and economic and environmental protection comprehensive benefits are remarkable.

The invention relates to an oil removing method of oil-base drilling cuttings. The method comprises the steps of feeding an emulsifying agent and acid into a solution of oily drilling cuttings, carrying out low-shear mixing for a period of time, and gradually separating hydrocarbon substances from the drilling cuttings to form small liquid drops, wherein the emulsifying agent has hydrophilia and comprises dispersed liquid drops, so that the effect of oil in water can be achieved; then, feeding active silicate, adjusting the pH value, and carrying out low-shear mixing to enable silicate to act with hydrogen ions to generate silicic acid, wherein silicic acid can be separated out from the solution due to the very low solubility; attaching silicic acid on the emulsified oil drops under the action of mixing to package the oil drops and form microcapsules, wherein the densities of the microcapsules are larger than the density of the solution, so that the microcapsules deposit at the bottom of the solution, and the aim of removing oil is achieved. According to the treatment method of the oil-base drilling fluid drilling cuttings, the cost is low, the oil removal rate is high and the technology is simple; according to the method, the problem of pollution caused by the drilling cuttings can be solved, the oil resources are recovered, and economical and effective innocent treatment is realized, and therefore, the oil removing method has a certain industrial popularization value.

The invention relates to a horizontal spiral discharge sedimentation filtration centrifuge. The horizontal spiral discharge sedimentation filtration centrifuge comprises a drum part, a spiral materialpusher, a machine base and a cover shell, wherein the cover shell is arranged on the machine base; a drum component is arranged in the cover shell, the drum component is internally provided with thespiral material pusher, and the drum component comprises a straight-section drum, a butt-joint flange drum and a screen drum which are sequentially arranged from left to right; a screen is arranged inthe screen drum, and the butt-joint flange drum is provided with a conical cavity; the spiral material pusher comprises spiral material pusher components I and spiral material pusher components II, and seam allowances of the spiral material pusher components I and the spiral material pusher components II are in fit connection; the spiral material pusher components I are positioned in the straight-section drum and the butt-joint flange drum, and material feeding bins and material feeding holes are formed in the spiral material pusher components I; and the spiral material pusher components II are positioned in the screen drum, and a plurality of through holes are formed in the inner walls of spiral material pusher components II. The invention further discloses a secondary separation processof the horizontal spiral discharge sedimentation filtration centrifuge. The horizontal spiral discharge sedimentation filtration centrifuge has the beneficial effects that the separation effect is improved, the liquid outlet rate is high, the leakproofness is good, and the maintenance cost is low.

The present invention relates to Serratia sp. A5 and applications thereof. The Serratia sp. A5 is preserved in the China General Microbiological Culture Collection Center on August 28, 2014, and the preservation number is CGMCC No.9621. According to the present invention, the Serratia sp. A5 is isolated from soil, the suitable growth temperature is 25-35 DEG C, the pH value is 7.0-7.5, and the Serratia sp. A5 has the lipase production ability; and the Serratia sp. A5 can be applied for degrading grease, relieving the inhibition effect of the grease in food waste anaerobic fermentation, increasing the biogas yield by 15-30%, and effectively increasing anaerobic fermentation hydrolysis and biogas production efficiency of other waste containing fat and the like or waste water, and further provides important significance for promotion of harmless, resource and energy utilization of organic waste.

The invention relates to a water purification agent, in particular to an oily sewage purificant used for treating oily sewage in oil fields, which consists of the following components according to weight percentage: 30 to 40 percent of aluminum chloride hexahydrate, 10 to 25 percent of epoxypropyl polyquaternary amine and 35 to 50 percent of poly(diallyldimethylammonium chloride. The oily sewage purificant is mainly used for the emulsion breaking and oil removing of oily sewage emulsion liquid or other 0/W sewage, has enough strong electrophilicity to neutralize negative charge formed by an emulsifier, has enough strong flocculation capability to flocculate particles in the emulsion liquid for facilitating the formation of large vanadium flowers, and has enough strong surface activity to break the interfacial energy of the emulsion liquid. The purificant is characterized by high deoiling rate, limpid water of dehydration, quick floating upwards of oil clots and even oil-water boundary. In addition, the purificant has the advantages of low dosage, low cost and broad application prospect.

The present invention relates to an industrial oily wastewater treatment method. The method comprises: adding an oily wastewater treatment agent to wastewater in which the oil content is 700-1200 mg/L, wherein the added volume is 10 mg/L; and after stirring the mixture for 20-40 minutes, performing separation by standing, wherein the oily wastewater treatment agent consists of a demulsifier, a flocculant and a surfactant and a solvent; and components in parts by mass are: 25-35 parts of the demulsifier, 5-10 parts of the flocculant, 5-10 parts of the surfactant, and 50-80 parts of the solvent. The oily wastewater treatment agent can simultaneously have effects of demulsification, flocculation, bridging and bubbling. According to the treatment method of the present invention, the composite oily wastewater treatment agent has high efficiency in removing oil with small dosage, and is particularly applicable to treatment of wastewater that contains high concentration of oil.

The invention discloses an efficient continuous vacuum fryer. High-vacuum-degree stability can be continuously kept under the condition of continuous feeding and discharging. The efficient continuous vacuum fryer is composed of a frying bin, a rotating hub type sealing device, a wedge disc type sealing device, a deoiler, a portal frame type chain lifting device, a CIP cleaning system, an oil filtering system, an oil heating cycle system, an oil-steam separating device and a vacuum system. The frying bin is composed of a frying bin upper bin, a frying bin lower bin, a frying bin sealing strip, a mesh belt rack, a conveying mesh belt, a pressing mesh belt, a striker plate and a residue scraping device. The deoiler is high in deoiling efficiency, oil residues can be automatically cleaned away through continuous filtering, oil filtering density is high, the fryer achieves grease cyclic heat exchange and automatic oil replenishing, the use period of grease can be prolonged, the CIP cleaning system automatically cleans equipment, the production equipment do not need to be detached, and the advantages that operation is easy, the portal frame type chain lifting device is convenient to maintain, and production efficiency is high are achieved.

The invention relates to a liquid detergent composition as well as a preparation method and application thereof. The pH (potential of Hydrogen) of the liquid detergent composition is 5 to 9; the liquid detergent composition is prepared from the following components in percentage by weight: (i) 0.01 percent to 5 percent of a thickener; (ii) 0.1 percent to 70 percent of a component A; (iii) 0.1 percent to 10 percent of a component B; (iv) 0.01 percent to 10.00 percent of a surfactant; (v) 0.01 percent to 10 percent of an enzymic preparation; (vi) 20 to 99 percent of water. The composition provided by the invention has the neutral pH and remarkable water scales are not generated after the detergent composition is used for a dish washing machine for a long period; remarkable damages to the dish washing machine are not caused and the brightness of washed tableware is also not influenced; meanwhile, the liquid detergent composition has strong cleaning power.

The invention discloses an efficient integrated cleaning system and method for petroleum hydrocarbon organic contaminated soil. The system sequentially comprises a contaminated soil feeding unit, a pretreatment crushing unit, a microbubble entrainment cleaning unit, a discharging dehydration unit, a sewage treatment unit and an instrument and electrical control unit, wherein the microbubble entrainment cleaning unit sequentially comprises a first cleaning section and a third cleaning section, the first cleaning section comprises a first spiral scrubbing machine penetrating through the first cleaning section, a first microbubble group generating device located at the front end of the first cleaning section and a first contaminated soil turnover window located at the tail end of the first cleaning section, the third cleaning section comprises a third spiral scrubbing machine penetrating through the third cleaning section and a third microbubble group generating device located at the front end of the third cleaning section, and a material discharging port is formed in the tail end of the third cleaning section and communicated with a discharging dehydration unit. According to the invention, the soil remediation work efficiency is improved, the soil remediation construction and operation cost is reduced, and the system can be widely applied to cleaning treatment of polluted soil.

The invention discloses an organic/inorganic hybridized cation reverse demulsifier, a preparation method and an application thereof. The preparation method for the organic/inorganic hybridized cationreverse demulsifier comprises the following steps: 1) adopting a silane coupling agent for modifying the surface hydroxyl group on nanometer SiO2, thereby acquiring modified nanometer SiO2, and then connecting a terminal on the modified nanometer SiO2 surface with a carbon-carbon double bond; 2) trigging ternary polymerization reaction of the modified nanometer SiO2, acrylamide and dimethyl diallyl ammonium chloride, thereby acquiring an end product. According to the invention, the silane coupling agent containing an unsaturated double bond is adopted for modifying nanometer SiO2, so that themodified nanometer SiO2 has a certain hydrophobicity and has an unsaturated carbon-carbon double bond on the terminal; a lyophobic hard-shell hydrophilic soft-shell netted structure can be formed through the ternary polymerization of the modified SiO2, AM and DMDAAC; the structure is capable of effectively increasing electric charge density and is capable of realizing effective demulsification onthe basis of guaranteeing low cation degree; a demulsifier to be matched with the reverse demulsifier is in a nonionic form, so that the formed floc strength is low and the de-oiling rate is high.

The invention provides a treatment method for tank bottom oil sludge. The method comprises the following steps: step one, performing water adding and mixing treatment on the oil sludge, enabling the solid content of the oil sludge to reach 4-15%; step two, adding sodium hydroxide solution to adjust a pH value to be 7.5-9; step three, adding a non-ionic surfactant and stirring in a high speed; andstep four, pumping into a clarification tank for precipitation separation. The provided treatment method for the tank bottom oil sludge is simple in reaction condition, convenient in operation, and capable of combining a demulsifying agent, the surfactant and an alkaline water washing technology in a specific reaction sequence and the reaction condition, realizing the rapid separation of the oil sludge, enabling a deoiling rate to reach 95% or more, and reducing the pollution of the oil sludge to the environment.

The invention discloses water-based deoiling treatment method and device for oily sludge in an oil field. The method includes: a) preparing a sludge/water mixture, weight content of oil being 10-20%;b) continuously pumping the sludge/water mixture into a water-based biochemical tank to decompose the mixture with a deoiling composite microbial agent, which contains GWN-1 strain and GWN-2 strain, for 60-84 hours, live bacteria number of the biochemical system being 10<9>-10<11>/ml; c) feeding the degraded sludge/water mixture into a settlement tank for settlement, then feeding a supernatant into a wastewater treatment device and the settlement, in the bottom layer, into a centrifuge, meanwhile, returning a part of liquid to the water-based biochemical tank; d) after the settlement enters the centrifuge, performing solid-liquid separation, and returning the separated wastewater to a sludge regulation tank for reutilization. The invention also discloses the device for achieving the method. The method and the device are high in biochemical degradation speed and efficiency of the oily sludge.

The invention relates to an oil-containing wastewater oil removal technology, and especially discloses a coalescence material used in a coalescence process oil removal technology, an oil removal method and an oil removal apparatus. The purposes of the invention comprise provision of a polymer resin simple to prepare, provision of an oil removal apparatus using the polymer resin and having a high oil removal rate and obvious energy and water saving benefits, and provision of a high-oil-content wastewater oil removal method using the above synthetic resin and the oil removal apparatus. The polymer resin is highly stable and firm in a subsequently introduced lipophilic group, can be repeatedly used, and is simple to prepare without amination. The oil removal apparatus comprises an aggregation device and an oil-water separating device, and also comprises a differential pressure detection device, and a resin layer is loosened through the automatic control of a pressure inductor in order to reduce the operation differential pressure; and the upper end of the aggregation device is provided with a wash water inlet, and the lower end of the aggregation device is provided with a wash water outlet.

In order to solve problems that an existing degreasing product in the prior art damages human skin, corrodes cleaned appliances, has a relatively strong irritating odor and is not ideal in degreasing effect, the invention provides a degreasing agent and a preparation method therefor. The degreasing agent provided by the present invention is characterized by comprising the following components in percentage by weight: 0.1-5% of edible essence, 0.2-10% of a solubilizing agent, 10-35% of a surfactant, 0.2-8% of a cosolvent, 0.2-8% of a builder, 0.05-1% of dilute hydrochloric acid and the balance of deionized water. The degreasing agent and the preparation method therefor provided by the present invention have the beneficial technical effects of high degreasing rate and fast cleaning speed, mildness, no irritating odor and no damage to human skin and no corrosion to the cleaned appliances.

The invention discloses a preparation method of a reversed-phase demulsification water purifying agent for oil-containing sewage treatment of thickened oil. The preparation method comprises the stepsthat N,N-dimethylethanolamine serves as an initiator to react with epoxy propane and ethylene oxide to prepare a precursor, and then the precursor reacts with halohydrocarbon to prepare a brown viscous liquid reversed-phase demulsification water clarifier. The reversed-phase demulsification water purifying agent obtained through the preparation method is a cationic polymer and brown viscous liquid, it is tested that the rotating viscosity is 200-280 CP at the temperature of 25 DEG C and at the rotating speed of 100 r/min, the water purifying agent can increase the demulsification and coalescence speed of emulsified oil drops at high temperature (70-90 DEG C) when used for thickened oil sewage treatment, treated waste oil does not stick to a wall, the separation effect of an inclined plateoil remover is improved, and the operation frequency for cleaning tank and removing dirt is reduced.