283results about How to "Improved resistance to shock loads" patented technology

The invention discloses a salt-separation zero-discharge system for high-salt industrial wastewater and belongs to the field of water treatment. The high-salt industrial wastewater enters a first-stage salt separation system after subjected to chemical softening through a precise pretreatment unit and concentration desalination through a membrane separation concentration unit, nanofiltration produced water and nanofiltration concentrated water which are produced after first-stage salt separation are concentrated by a high-pressure flat membrane system and conveyed to an advanced oxidation system of a crystallization recycling unit for oxidation treatment respectively, and obtained products are supplied to a second-stage salt separation system; the second-stage salt separation system adopts two multiple-effect evaporation or MVR systems or adopts a multiple-effect evaporation or MVR system and a freezing crystallization system. The salt-separation zero-discharge system has the beneficial effects as follows: the two stages of salt separation systems supplement each other, various inorganic salts are separated completely, and production of mixed abraum salts is reduced to the greatest extent; first-stage salt separation serves as guarantee of second-stage salt separation, the salt separation efficiency of the whole system can be guaranteed under the condition of larger fluctuation of quality of inflow water, and the impact load resistance of the system is enhanced.

The invention discloses a SBR alternant aerobic/anaerobic technology for biological denitrification and real time control device and method thereof which consists of, dividing the waste water to be treated into three portions, loading each portion into a reactor, alternatively carrying out the operating mode of aerobic aeration and anoxybiotic agitating under real time procedure control, so as to realize the organics degradation and nitrogen-containing compound removal.

The invention provides a device and a method for treatment of low-temperature and low-carbon ammonia nitrogen wastewater on the basis of solid-phase denitrification and heterotrophic nitrification-aerobic denitrification. The device comprises a reactor and a reflux system, wherein the upper part and lower part of the reactor are respectively provided with a fluidized bed aerobic zone and a filterpool anoxic zone which are filled with a solid carbon source filling material and separated by a porous water distribution plate; an aeration tube is arranged on the water distribution plate and connected with an aeration device through a gas flowmeter; the lower end of the reactor is provided with a water inlet; the upper end of the reactor is provided with a water outlet; an effluent of the reactor enters a secondary sedimentation tank, and an effluent of the secondary sedimentation tank enters an intermediate water storage tank through an overflowing opening; the upstream end of the refluxsystem communicates with an effluent of the intermediate water storage tank; the downstream end of the reflux system communicates with the reflux opening of the lower end of the reactor through a liquid flowmeter; and the interior of the fluidized bed aerobic zone is provided with a dissolved oxygen monitor and a nitrate concentration monitor. The device and the method provided by the invention can still realize highly-efficient removal of ammonia nitrogen and total nitrogen under the conditions of low temperature and low carbon.

The invention discloses a processing method of coking steaming ammonia wastewater. The processing method of the coking steaming ammonia wastewater comprises pretreatment of coking steaming ammonia wastewater and biochemical treatment of the coking ammonia wastewater. The pretreatment of the coking steaming ammonia wastewater uses an adjusting pool, an internal electrolysis reactor, a Fenton oxidation pond and a coagulative precipitation tank. A sequencing batch membrane bioreactor technology is adopted by the biochemical treatment, and working procedures of inflow, unused-leaving, reacting and discharging are sequentially performed according to a time period. The processing method of the coking steaming ammonia wastewater can effectively remove persistent organic pollutants and ammonia nitrogen, strengthen effluent quality, and reduce operational and investing costs of equipment.

The invention discloses a composite nanofiber membrane and a preparation method and application thereof. The composite nanofiber membrane is prepared from electrostatic nanofiber deposition foam material. Compared with the prior art, the composite nanofiber membrane has the advantages that by the utilization of an electrostatic spraying technology, foaming particles or foaming short fibers are prepared and deposit on the surface of electrostatic nanofibers, so that the composite nanofiber membrane with controllable thickness is obtained, and the porosity, air permeability and filling power of the nanofiber membrane are improved. By the utilization of the method, the resistance to impact load, heat insulation, sound insulation, specific strength and other physical and mechanism properties of the nanofiber membrane are improved. With the method, the pressure drop and resistance of the nanofiber membrane are reduced, the preparation technology is simple, and cost is low.

The invention relates to double-membrane-method technology for refining brine and equipment for the same. After pretreatment, brine to be treated enters a filtration procedure to form high-concentration nitrate-containing water and refined brine; pretreatment refers to carrying out a removal procedure of calcium and magnesium ions, a removal procedure of ammonium, a reduction procedure and a pH adjusting procedure to the brine to be treated; the filtration procedure refers to the steps that: the pretreated brine is pumped to gas-stripping tubular type membrane module for ultrafiltration, thereby organic impurities, suspended matters and partial precipitates of the brine are intercepted; pressure raising is carried out to the brine which permeates a tubular type membrane, then the brine directly enters nanofiltration membrane module for nanofiltration; the brine which can not permeate the tubular type membrane returns the removal procedure of calcium and magnesium ions; and in a high pressure state, sulfate ions are intercepted by a nanofiltration membrane to form high-concentration nitrate-containing water, and chloride ions and sodium ions permeate smoothly the nanofiltration membrane to form refined brine. The technology in the invention is simple, low energy consumption, small land-occupation area, low investment and low production cost, a stable operation system, strong impact-resistance load capability and no secondary pollution.

Provided are integrated domestic sewage treatment equipment and treatment method. The integrated domestic sewage treatment equipment is formed by the following treatment units: a gridding feces tank, an anaerobic tank, an aerobiotic tank and a precipitating and sterilization pond, all of which are sequentially communicated. The integrated domestic sewage treatment equipment is characterized in that water inlet and outlet pipes are arranged between the treatment units, each treatment unit is provided with a mud discharging pipe and an exhausting pipe, the anaerobic tank and the aerobiotic tank are each provided with an aerating system and a flow-back system, a triangular weir is adopted in water outflow of each treatment unit, the input end of the water inlet pipe of the gridding feces tank is located outside the equipment, and an inlet penetrates into the portion, before a grid, at the bottom of the gridding feces tank; the gridding feces tank is connected with the anaerobic tank, the water inlet pipe of the anaerobic tank is communicated with the interior of the bottom of the tank for water inflow, and a filling area of the anaerobic tank is filled with a fixed carrier and biological sponge iron filler; the anaerobic tank is connected with the aerobiotic tank, the water inlet pipe of the aerobiotic tank is communicated with the bottom of the tank for water inflow, and a filling area of the aerobiotic tank is filled with a fixed carrier and biological sponge iron filler; the aerobiotic tank is connected with the precipitating and sterilization pond, the water inlet pipe enters the middle of a precipitating pond body, and a 45-degree slope is arranged in a sludge area at the bottom of the pond; the precipitating pond body is connected with a sterilization pond body, the water inlet pipe enters the bottom of the sterilization pond body for chlorine tablet sterilization, and water is output out of the upper water outlet pipe.

The invention discloses a technology for treating and recycling a fracturing flow-back fluid of an oil and gas field. The technology comprises the steps as follows: oil-separation recovery is performed on a waste fluid of the fracturing flow-back fluid, so that a recovered waste fluid is obtained; the recovered waste fluid is degraded, so that a degraded waste fluid is obtained; flocculation and flotation are performed on the degraded waste fluid, so that floccules are obtained; and the floccules are separated from the fluid, so that a fluid for preparing an oil and gas field fracturing fluid is obtained. According to the technology, sump oil and waste fluid resources are recycled fully, and the treated waste fluid satisfies a standard requirement of preparation of the fracturing flow-back fluid.

The invention relates to a coke wastewater advanced treatment method utilizing a catalytic internal electrolysis technology and a coupled two-stage bio-filter. The method adopts a catalytic internal electrolysis method as the main processing technology to carry out a pretreatment on the coke wastewater biochemical effluent so as to improve the wastewater biodegradability, and then utilizes a two-stage bio-filter to carry out bio-processing to further degrade the pollutants in the wastewater. The method combines an electrochemical method and a biochemical method to degrade and remove pollutants in coke wastewater, thus has a high impact-resistant capacity, can remove COD, ammonia-nitrogen, and total nitrogen from the whole system at the same time, and greatly reduces the effluence color degree. The effluence processed by the method has a good water quality, and can stably meet the "emission standard of pollutants for coking chemical industry" (GB 16171-2012).

The invention discloses a sewage treatment system, which comprises a selection area, an anaerobic tank, an anoxic tank, an aerobic tank, a precipitation adjusting tank and an aerobic membrane tank, which are connected in turn through an effluent weir, wherein the precipitation adjusting tank is arranged between the aerobic tank and the aerobic membrane tank. The sewage treatment system is technically characterized in that the system has two-stage oxidation and the precipitation adjusting tank is arranged between the aerobic tank and the aerobic membrane tank, so the membrane loss is greatly reduced, the membrane flux of the membrane tank is ensured, and the impact resistant loading capacity of the system is obviously improved while reducing the running cost; basically the consumption of the membrane is saved, and meanwhile the treatment efficiency of AA0 is improved; and composition units of the process device are built integrally in sequence and the units share the same wall, so the design can save investment and save space, and meanwhile the running cost can also be saved due to interconnection of the units. The integral device has low investment and running costs and ultrahigh yield water quality, and is particularly suitable for the requirements of water-lacking large and medium cities for recycling sewage.

The invention discloses a sewage treatment method adopting a baffle plate and a membrane-aeration coupling device. A coupling reactor is formed by putting a well-trained membrane-aeration assembly in a third upstream compartment of a stably operating anaerobic baffle plate reactor. The process flow comprises the following steps of: carrying out an anaerobic reaction on sewage in a first upstream compartment of the anaerobic baffle plate reactor; carrying out an anaerobic reaction in a second upstream compartment of the anaerobic baffle plate reactor; carrying out an anaerobic reaction in the third upstream compartment of the anaerobic baffle plate reactor; carrying out an aerobic reaction and an anaerobic reaction in the membrane-aeration biological membrane assembly; carrying out an anaerobic reaction in a fourth upstream compartment of the anaerobic baffle plate reactor; and obtaining processed fresh water. By coupling the anaerobic baffle plate reactor with the membrane-aeration biological membrane reactor, the invention reaches the oxygen utilization rate approaching 100 percent, is suitable for growing and propagating nitrobacteria which grows slowly, improves the impact load resisting capacity of the membrane assembly, saves the equipment investment and operation cost and is easy to reach operation parameters needed for operation.

The invention relates to a double-series connection elastic driver and comprises two guide bars, two ends of which are fixed on brackets; wherein, the bracket of one end is provided with two through holes, and two push rods go through the through holes; two spring baffles which are provided with holes are fixed on the push rods and go through the guide bars; a spring driving plate is arranged between the two spring baffles and is connected with a driver arranged on the bracket through a driving rod; springs are positioned between the spring driving plate and the spring baffles on two sides, and the springs comprise a soft spring and a hard spring which are distributed in a parallel way; the soft spring is sheathed on the push rod and the hard spring is sheathed on the guide bar and a passage of gap exists between the hard spring and the spring driving plate. The elastic driver has the advantages that when the driving load is smaller, the spring with smaller rigidity has the buffering effect to avoid the overlarge impact force; when the driving load is bigger, the spring with smaller rigidity is totally compressed and then the spring with larger rigidity plays the buffering role, thus preventing the driving belt width from being over influenced.

The invention relates to a nano-composite coating and a preparation technology thereof, in particular to a preparation technology of a Zr-B-N nano-composite coating. High-power pulse and pulse direct-current composite magnetron sputtering technologies are adopted for depositing the Zr-B-N nano-composite coating on a metal or alloy matrix. In order to improve the content of the Zr element in the coating, metal Zr and a compound ZrB2 (both with the purity of wt.99.9% and the diameter of 80 mm) are simultaneously selected as target materials, Ar gas is introduced at first before film coating, high-power pulse magnetron sputtering is carried out on the Zr target to carry out bombardment cleaning on the surface of the matrix, then, a metal Zr transition layer is deposited, finally, reaction gas N2 is introduced, build-up of luminance is achieved for the Zr target and the ZrB2 target simultaneously, and the Zr-B-N coating is started to be deposited. The preparation technology of the Zr-B-N nano-composite coating is simple, good in repeatability and easy to produce industrially. The prepared Zr-B-N coating has high toughness and strength and good wear resistance and is compact in structure texture, and the binding force between the coating and the matrix is strong.

The invention provides a treatment device and method of printing and desizing mixed wastewater. The treatment device of the printing and desizing mixed wastewater is characterized by comprising a water collecting regulating tank, a reinforced circulating type efficient anaerobic bioreactor, an aerobic biological contact oxidation tank, a gas-flotation tank, a high-level oxidization tank and an aeration biological filter tank. The treatment device and method disclosed by the invention are especially suitable for treating the high-ammonia-nitrogen high-concentration printing and desizing mixed wastewater generated in printing and desizing processes, a process system disclosed by the invention is adopted to effectively treat the high-concentration high-ammonia-nitrogen wastewater generated by the printing process and high-concentration high-alkaline wastewater generated by the desizing process in printing and dyeing enterprises after the two kinds of wastewater are subjected to flow-dividing and mixing, and also can be combined with a wastewater treatment process for other relatively-low-concentration pollutants in a printing and dying plant to form a complete wastewater treatment system of the enterprise, thereby realizing modifying and upgrading an existing wastewater system.

The invention relates to an emergency control method for a sewage treatment system for treating abnormal influent/effluent quality. The emergency control method comprises the steps of firstly, judging weather a sewage treatment plant is impacted by abnormal influent; secondly, judging weather an effluent quality index belongs to abnormal effluent; if detecting to find abnormal influent within a certain period of time, regulating an operation condition according to different exceeding conditions; if detecting to find abnormal effluent within a certain period of time, starting up emergency agent addition to improve the treatment effect in time. The method is realized according to the overall regulation thinking that the impact of influent impact to the sewage treatment system is reduced through regulating process control parameters when abnormal influent of a sewage plant appears, and the system function is restored in time through adding an emergency agent when abnormal influent of the sewage plant appears; in addition, the real-time control for front feed and back feed is realized by sufficiently utilizing online monitored data. The method is low in investment and capable of effectively handling the influent impact load, rapidly improving and restoring a system treatment effect, exerting the treatment capability of a sewage treatment facility to the maximum extent and increasing the rate of reaching the standard.

The invention discloses a belt transmission cross full shaft type two-degree-of-freedom universal joint mechanism, and relates to a universal joint mechanism, and the mechanism provided by the invention is used for solving the problems of the existing bevel gear differential coupling universal joint mechanism that the rigid contact exists between a motor speed reducer and a differential action coupling bevel gear, the motor speed reducer is easy to damage, four bevel gears are installed in a cantilever mode, and the bearing capability is worse. A horizontal shaft and a vertical shaft are arranged vertically; a first large belt wheel and a first bevel gear as well as a third bevel gear and a second large belt wheel are arranged symmetrically relative to the horizontal shaft; a central sleeve is positioned between the first bevel gear and the third bevel gear; rolling bearings are respectively arranged between the first large belt wheel and the vertical shaft, between the first bevel gear and the vertical shaft, between a third bevel gear and the vertical shaft and between a second large belt wheel and the vertical shaft; the first large belt wheel is fixedly connected with the first bevel gear; the third bevel gear is fixedly connected with the second large belt wheel; two ends of the vertical shaft are installed on two brackets; and the first large belt wheel is correspondingly connected with a small belt wheel in a transmission mode through a first belt. The universal joint mechanism provided by the invention is used for adjusting the posture of the tail end of an actuator.

The present invention discloses an integral multistage simultaneous nitrification and denitrification biological membrane system denitrification method and device, and belongs to the technical field of biological treatment of sewage, and the device is integrally constructed sequentially by a regulatory region, a multistage simultaneous nitrification and denitrification region, a flow diversion region and a precipitation region. The multistage simultaneous nitrification and denitrification region is in a multiple-groove pushing flow form, each reaction groove is provided with an aeration system and a multi-section water inlet device; the precipitation region is provided with an overflow port and an inclined plate sedimentation tank; a multi-section water inlet pipe connects each reaction groove of the regulatory region and the multistage simultaneous nitrification and denitrification region, by full use of the advantages of the simultaneous nitrification and denitrification and control of the operation conditions, the nitrification and denitrification are integrated in a reaction zone without adding of additional alkalinity and need of stirring, nitrification liquid reflux and sludge return systems, energy is saved, and cost is reduced, load of shock resistance of the system is enhanced by the multistage pushing flow structure, by multi-section water inlet design, the role of system denitrification is enhanced, the denitrification and carbon removal effects are stable, and maintenance and management are convenient.

The invention discloses a column-shaped denitrifying reactor through integrated nitrated and denitrificated biological film method in the environmental protective technique domain, which comprises the following parts: water collecting system, aerating reacting region, anaerobic region and sediment region, wherein the aerating reacting region is full of suspension fill with aerating pipe on the bottom; the gas inlet and water outlet are opened on the bottom; the gas inlet connects aerating pipe with top opening interconnecting hole; the peole-shaped mud baffle board is set in the sediment region with hole on the top, which connects one end of gas collecting pipe; the other end of gas collecting pipe pierces the water collecting system; the mud drainage valve lies on one side of sediment region under the mud baffle board; the bottom of water collecting system possesses overflow dam with water drainage pipe on one side; the sampling valve is set around aerating reacting region and sediment region.

The invention relates to an improved up-flow anaerobic ammoniation reactor for treating high-organic nitrogen printing and dyeing wastewater. The improved up-flow anaerobic ammoniation reactor comprises a tower, wherein the tower is orderly provided with a gas collection system having a three-phase separator, a tower water outlet, an anaerobic sludge reaction region, a water distribution system, a water feed pump and an internal circulation system from top to bottom, and the internal circulation system is connected with the top and the bottom of the tower; the improved up-flow anaerobic ammoniation reactor is characterized by further comprising an anaerobic biological membrane reaction region composed of a filler, filler bracket and an anaerobic biological membrane formed on the filler, wherein the anaerobic biological membrane reaction region is arranged between the tower water outlet and the anaerobic sludge reaction region; the water inlet end of the internal circulation system is connected with an internal circulation port while the water outlet end thereof is connected with a water inlet pipe through a reflux pump. The improved up-flow anaerobic ammoniation reactor can treat the printing and dyeing wastewater based on compositions according to pretreatment wastewater and printing and dyeing wastewater, which is beneficial for hydrolyzing and acidizing refractory dye organics in the printing and dyeing wastewater, decomposing the dye organics into micromolecular organics and improving anaerobic ammoniation effect.

The invention relates to an integrated device and an integrated method for enhancing the denitrification and dephosphorization of dispersed village and town sewage. A water inlet (13) and a water outlet (6) of the device are positioned at the bottom of the left side and on the upper part of the right side of a device main body (1) respectively; a perforated clapboard (4) divides the device main body (1) into seven areas, namely an anaerobic filter area (A), an anaerobic filter area (B), a composite area (C), a contact oxidation area (D), a contact oxidation area (E), a contact oxidation area (F) and a water outlet area (G) in turn; the composite area (C) is divided into two chambers with the same volume through a nonporous clapboard (25), a closed clapboard (27) and a porous clapboard (26); ceramsite (2) serving as a filler is arranged in the anaerobic filter area (A), the anaerobic filter area (B) and an anaerobic filter area (H); hollow spheres (3) and a system are arranged; and both bottoms of the anaerobic filter area (A) and the contact oxidation area (F) are provided with a nitration solution refluxing port (10). The device and the method are easy and convenient to operate, sanitary, and low in consumption and have impact load resistance.