92results about How to "No backwash required" patented technology

The invention discloses a method for treating coking wastewater, which belongs to the field of wastewater treatment. The method comprises the following steps that: wastewater of a coking plant enters a regulating reservoir for the adjustment of water quality and water amount, and orderly enters a hydrolytic tank, an anaerobic tank, a preaeration tank, a preliminary sedimentation tank, an aerobic tank, a secondary sedimentation tank and a coagulation reaction tank for treatment, wherein the hydrolytic tank and the preaeration tank are filled with a bio-cord filler; the sludge of the preliminary sedimentation tank refluxes into the hydrolytic tank and the anaerobic tank respectively; a clarifying solution of the secondary sedimentation tank refluxes into the anaerobic tank; and the aerobic tank adopts a moving bed bio-film reactor. The bio-cord filler adopted in the invention has short film formation time and high biomass, does not need repeated washing, and has strong shock resistance; and the moving bed bio-film reactor can fix a large amount of nitrobacteria with long generation time, and has no the problem of blocking. The method can remove high-concentration ammonia nitrogen and organic substances in the coking wastewater, and the COD and the ammonia nitrogen of treated effluent can synchronously achieve the primary standard of the national integrated wastewater discharge standard (GB9878-1996).

The invention relates to a method for removing coke powder from raw oil and a device thereof and provides the method for removing the coke powder from the raw oil. The method comprises the following steps: cyclone separation is carried out on the raw oil containing the coke powder at the temperature of 40-600 DEG C to obtain the purified raw oil and sump oil containing the coke powder; and the sump oil containing the coke powder is deposited or filtered to obtain further recycled concentrated sump oil rich in coke powder. The invention also provides the device for removing the coke powder from the raw oil.

The invention discloses an AAO (Anaerobic-Anoxic-Oxic)-biological contact oxidation strengthened denitrification and dephosphorization device and a real-time control method of low C/N sewage treatment. The system is mainly composed of a raw water tank, an AAO reactor, an intermediate sedimentation tank, a biological contact oxidation tank, a settling zone, a discharged water tank, an online control box and a computer. The real-time control method is as follows: a DO sensor online collects concentrations of dissolved oxygen in grid cells of the biological contact oxidation tank, and the computer calculates and outputs the concentrations to control the nitrification process; a NH<4+> sensor, a NO<3-> sensor, a NO<2-> sensor and a TP sensor online collect the concentrations of ammonia nitrogen, nitrate, nitrite and total phosphorus in the discharged water tank, and the computer calculates and outputs according to the signals collected by the sensors to adjust the aeration amount, the reflux ratio of nitrifying liquid and water intake C/N. By adopting the online real-time control equipment, the system operation is optimized, the energy is saved, the consumption is reduced, the carbon source and the aeration amount are saved and the residual sludge is reduced.

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 relates to a purification system integration process for algae, suspended matters and total phosphorus in a landscape water body. By applying the mechanisms of physical and chemical adsorption precipitation, physical magnetic adsorption, high-efficiency magnetic separation purification and centrifugal solid-liquid separation comprehensively, substances such as algae, suspended matters, total phosphorus and the like in water are adsorbed by a flocculating agent, a coagulant aid and magnetic seeds to form a flocculate, wherein the flocculate has the super-magnetism and is adsorbed by a magnetic drum of a high-efficiency magnetic separation device in the water, and adsorbates on the surface of the magnetic drum are removed by a continuous sludge scraper, namely the algae, the suspended matters, the total phosphorus and the like in the water are removed by purification and separation; and simultaneously, scraped sludge enters a sludge storage room through centrifugal separation and dehydration. The sewage purification process has the advantages of short residence time, high speed and small floor area, and realizes the high-efficiency and quick purification of water bloom substances such as the algae, the suspended matters and the total phosphorus in the landscape water body to control water quality in the water body effectively and avoid eutrophic phenomenon caused by alga propagation in the water body.

The invention relates to an A2/O-bio-contact oxidation device and method based on coupling of partial nitrification and denitrifying phosphorous removal and belongs to the field of biological treatment of sewage. The device mainly comprises an A2/O reactor (comprising an anaerobic zone, an anoxic zone and an aerobic zone), a wobble plate sedimentation tank, a biological contact oxidation tank and a sedimentation zone, wherein the aerobic zone of the A2/O reactor is connected with the wobble plate sedimentation tank by virtue of an overflow baffle, the wobble plate sedimentation tank is connected with the biological contact oxidation tank, and the biological contact oxidation tank is connected with the sedimentation zone; filler made from carbon fibers is arranged in the biological contact oxidation tank and is mainly used for completing partial nitrification; a sludge reflux pump is communicated with the bottom of the anaerobic zone of the A2/O reactor, a nitrification liquor reflux pump is connected with an effluent tank and the anoxic zone of the A2/O reactor to realize denitrifying phosphorus removal. The A2/O-bio-contact oxidation device and method fully take advantages of partial nitrification and denitrifying phosphorous removal and have the advantages of conservation of carbon source, low aeration rate, low sludge yield and the like.

The invention discloses a high-efficiency multistage demister. The high-efficiency multistage demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and an outer barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the inner surface of the outer barrel is provided with spiral fins; the gas riser pipe is fixed on a tray; the top of the gas riser pipe is provided with a sealing cover; and a rectifying passage is arranged on the circumference of the gas riser pipe. Thedemister of the invention realizes the separation of droplets from gas by rectification, acceleration and scraping effect in the flowing process of fluids. The demister of the invention has the advantages of simple structure, convenient installation and small possibility of scale formation, and can effectively realize gas-liquid separation and reduce entrainment of mist.

The invention discloses a high-efficiency defogging device. The high-efficiency defogging device comprises a plurality of parallel defogging components; each defogging component comprises a gas riserpipe and an outer barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, the gas riser pipe II is fixed on a tray, and the gas riser pipe I and the gas riser pipe II are connected with each other by a bearing; the top of the gas riser pipe I is provided with an upper capping plate; the gas riser pipe I is circumferentially provided with a plurality of slits; and vanes arecircumferentially arranged on the gas riser pipe I at positions close to the slits. The high-efficiency defogging device of the invention realizes the separation of droplets from gas by multiple baffling, acceleration and scraping effect in the flowing process of fluids. The high-efficiency defogging device of the invention has the advantages of simple structure, small pressure drop, small possibility of scale formation, convenient installation, reduced mist entrainment and capacity of effectively realizing gas-liquid separation, and is especially applicable to occasions with large gas flow fluctuations.

The invention discloses a strip-shaped slow-release scale inhibitor. The strip-shaped slow-release scale inhibitor is prepared from the following components in percentage by weight: 40% to 60% of scale inhibitor, 10% to 30% of adhesive, and 20% to 40% of water. In addition, the invention also discloses a preparation method of the strip-shaped slow-release scale inhibitor. The preparation method comprises the following steps of (1) fully stirring the scale inhibitor, the adhesive and the water, so as to form a uniform plastomer; (2) extruding and forming the plastomer in step (1), so as to obtain a wet material of the strip-shaped slow-release scale inhibitor; (3) drying the wet material of the strip-shaped slow-release scale inhibitor in step (2), so as to obtain the strip-shaped slow-release scale inhibitor. The strip-shaped slow-release scale inhibitor has the advantages that the preparation method is simple, the mechanical strength is high, and the lasting scale inhibiting effect is realized.

The invention discloses a flue gas dedusting and desulfurizing tower and a flue gas dedusting and desulfurizing method. The flue gas dusting and desulfurizing tower comprises a pretreatment unit, an advanced treatment unit and a tower bottom liquid tank area, and the pretreatment unit is communicated with the advanced treatment unit by a flue gas pipeline. The pretreatment unit sequentially comprises a quenching and spraying area, a first-stage spraying area and a Venturi grating washing area from top to bottom; and the advanced treatment unit sequentially comprises a middle liquid tank area,a second-stage spraying area, an upper liquid tank area, a third-stage spraying area, a demisting area and a flue gas discharging area from bottom to top. The white smoke phenomenon of wet desulfurization is eliminated, so the white smoke phenomenon of a smoke discharging opening is significantly reduced; and the triple functions of flue gas dedusting, desulfurizing and advanced demisting are achieved in the tower, and all functional areas cooperate with each other and promote each other, so the occupied area of the tower is greatly reduced, and the cost for construction and reconstruction ofthe tower is significantly reduced.

The invention belongs to the technical field of wastewater treatment, and particularly relates to an aeration and filler integrated suspended lift mounting system. The system comprises an air intake system, a filler system and an aeration system; the air intake system is mounted over a water tank and comprises a plurality of air intake branches and a plurality of air intake branching tubes, and each air intake branch is connected with a plurality of the air intake branching tubes; the filler system is arranged inside the water tank and comprises biological filler and filler connecting tubes, and the biological filler is fixed between the air intake system and the aeration system through the filler connecting tubes; the aeration system is mounted at the bottom of the tank and connected with the air intake system through the air intake branching tubes. Aeration and filler are integrated to be applied to urban sewage treatment and treatment of many kinds of industrial wastewater, the aeration and filler systems are mounted in a supportless manner, and a short way which is simple, easy and good in treatment effect is provided for effective treatment of various types of wastewater.

This invention is self-controlling turbine synchronous discharging and absorbing pump. It includes pump body and absorb connecting pipe. The air outlet opening, which communicates to pump body internal cavity, is arranged on the upper part of pump body. The air outlet opening discharges air through a negative pressure device. The negative pressure device has a gas liquid separator, on which has at least one liquid level sensor. The bottom of the said gas liquid separator has one air absorbing opening. This invention has no etching and has long operational life span. It does not need the bottom valve and has high efficiency. This invention starts with high liquid level and stops with low liquid level. It also has intelligent machine stopping protection device. When the medium is empty, the machine stops automatically. It can control remotely. This invention can be assembled vertically and horizontally. It can be moved or fixed.

The invention discloses a shielding suspension type pump which comprises a delivery pump, a driving motor, a suspension supporting shielding pipe, a supporting plate, a cooling system, a lubricating oil pressurization and delivery device and a sealing filler pressurization and delivery device. The shielding suspension type pump is characterized in that a flange at the upper end of the suspension supporting shielding pipe is fixed on a supporting plate and the delivery pump is fixed on a flange at the lower end of the suspension supporting shielding pipe. The invention has very high vacuum height of suction and hydraulic efficiency, reduces the loss of transmission power of the transmission shaft, improves the efficiency and eliminates the pump shaft abrasion of the long-shaft pump, the broken shaft type fault masking adopts the suspension supporting shielding pipe, the driving motor and the delivery pump are fixed and a forced ventilation system is configured, so that the shielding suspension type pump can normally run under the harsh environment with high temperature and humidity.

The invention relates to a biological aerated filter which is provided with a suspended bed and used for sewage treatment. The biological aerated filter comprises a filter body, a water inlet pipe, an aeration pipe, a sludge discharge pipe, a suspended filler bed layer, a filter layer, a filter material baffle and a water outlet. The filter body is filled with suspended filler and light filter beads, during aeration and water incoming, the filler is naturally accumulated in the filter body respectively to form the suspended fixed bed and the filter layer, when sewage flows through the suspended bed upwards, biochemical treatment is performed under the action of a filler layer biological membrane, and when the treated sewage passes through the upper filter layer, SSs (suspended solids) in the sewage are further intercepted and removed; when water incoming and aeration are stopped, the filler of the suspended bed and the filter layer restores the loose suspension state, the intercepted SSs are deposited at the bottom of the filter body to be discharged out, and functions of the filter body are restored automatically. The biological aerated filter provided with the suspended bed has the advantages that the filter is simple in structure, convenient to operate, quick to start, wide in applicable inlet water SS range, free of backwashing and the like, and the filter has broad popularization and application prospects in small sewage treatment plants.

The invention discloses a high-efficiency rotary demister. The high-efficiency rotary demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and anouter barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the inner surface of the outer barrel is provided with spiral fins; the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, the gas riser pipe I and the gas riser pipeII are connected with each other by a bearing, and the gas riser pipe II is fixed on a tray; and a rectifying passage is arranged on the circumference of the gas riser pipe I. The demister of the invention realizes the separation of droplets from gas by rectification, acceleration and scraping effect in the flowing process of fluids. The demister of the invention has the advantages of simple structure, convenient installation and small possibility of scale formation, and can effectively realize gas-liquid separation and reduce entrainment of mist.

The invention provides a method and a device for delaying coking unwatering cyclone decoking with less investment, low energy consumption and high decoking efficiency. The method for delaying coking unwatering cyclone decoking comprises the following steps: settling separation, one-stage or two-stage or multistage cyclone decoking, and effluent oil separation. The method and the device for delaying coking unwatering cyclone decoking has the following advantages that: the separation efficiency is high; the separation precision of unwatering fine coke solid particles is 5 microns; the removal efficiency of particles with the separation precision of 5 microns or more is more than 95%; other solid particle impurities are removed while the fine coke solid particles are removed; the pressure loss is small; the operation is simple and convenient; the operation cost is low; the device has simple structure and occupies small area.

The invention discloses a high-efficiency demister. The high-efficiency demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and an outer barrel;the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, and the gas riser pipe I and the gas riser pipeII are connected with each other by a bearing; the top of the gas riser pipe I is provided with an upper capping plate; the gas riser pipe I is circumferentially provided with a plurality of slits; vanes are circumferentially arranged on the gas riser pipe I at positions close to the slits; the part, located below a tray, of the gas riser pipe II is circumferentially and uniformly provided with aplurality of gas inlets; the part, located at the gas inlets, of the inner wall of the gas riser pipe II is provided with inflow gas deflectors; the inner surface of the outer barrel is provided witha groove; and the cross section shape of the groove is composed of an arc and a straight section. The high-efficiency demister of the invention has the advantages of simple structure, small pressuredrop, small possibility of scale formation, convenient installation, reduced mist entrainment and capacity of effectively realizing gas-liquid separation, and is especially applicable to occasions with large gas flow fluctuations.