45results about How to "Accumulation and stability" patented technology

A paper sheet storing apparatus is configured to collect and accumulate multiple different types of paper sheets in different sizes. The paper sheet storing apparatus has: a paper sheet cartridge configured to have a feeder provided on a side wall thereof for externally feeding paper sheets and arranged to accumulate and keep the paper sheets therein; and a stack guide member configured to introduce the paper sheets, which are fed by the feeder into the paper sheet cartridge, downward in the paper sheet cartridge and to press down surface of an uppermost paper sheet located on a top of the paper sheets accumulated and kept in the paper sheet cartridge. The stack guide member is structured in a specific shape to enable the surface of the uppermost paper sheet to be pressed downward in a vertical direction, with regard to all the multiple different types of paper sheets. This arrangement effectively reduces the potential for paper jams and relevant troubles and ensures stable accumulation of paper sheets.

The invention discloses an energy-saving consumption-reducing short-range nitration dephosphorizing coupling technique with synchronous denitrification and a device thereof, belonging to technical field of domestic and industrial sewage treatment. A metal carrier bed is installed in an aerobic section with integrated reaction, and is made of iron wood shaving washed through acid cleaning; and the outer part of the iron wood shaving is covered by wire netting. Under conditions of normal temperature and low dissolved oxygen, the aims of short-range nitration and synchronous denitrification can be realized; an anaerobic section is used for finishing phosphorous releasing; the aerobic section is used for finishing short-range nitration, an anoxic section is used for finishing denitrification for removing phosphorous, a fast aerobic section is used for removing remaining ammonia and nitrogen and phosphorous. The invention uses iron wood shaving with low cost to realize stable accumulation of nitrite; the aerating amount is small, the carbon source is saved, and denitrification for phosphorous removing is carried out by taking the nitrite produced via short-range nitration as electron donor, thus the nitrogen and phosphorous can be removed synchronously; and the problem that the nitrite in water could damage the environment and has toxicity is solved. The invention can realize the aims of saving energy and reducing consumption to the largest extent, and is suitable for purifying and treating domestic sewage continuously for a long time.

The invention relates to a method for biological sewage treatment, in particular to a method for obtaining stable nitrite accumulation by sewage denitrification. By controlling the biological denitrification process of an activated sludge method, the method realizes the reduction of nitric acid salt and incomplete reduction of nitrite so as to obtain the stable nitrite accumulation. The method adjusts carbon nitrogen ratio of sewage and controls the carbon nitrogen ratio to be between 2.4 and 3.2 by using methanol or other external carbon sources, indicates the denitrification process of the activated sludge method by using the changing characteristics of the pH value, and finally realizes converting the nitric acid salt in the sewage into the nitrite to obtain the stable nitrite accumulation. The nitrite accumulation obtained by the method can reach around 25 percent of the amount of initial nitric acid salt of denitrification reaction. The nitrite can be taken as a nitrite source of anaerobic ammonium oxidation reaction.

The invention provides a device and method for realizing deep denitrification of nitrate wastewater and municipal sewage by partial denitrification and serial autotrophic nitrogen removal. The device comprises a nitrate wastewater tank, a municipal sewage tank, a partial denitrification reactor, an additional carbon resource reserve tank, a first intermediate water tank, an anaerobic ammonia oxidation reactor and a second intermediate water tank. The method comprises the following steps that nitrate wastewater and municipal sewage flow into the partial denitrification reactor according to a ratio, an effluent obtained after nitrate is reduced to nitrite flows into the anaerobic ammonia oxidation reactor to be subjected to an anaerobic ammonia oxidation reaction, and the effluent contains the nitrate generated by anaerobic ammonia oxidation, and then flows into the partial denitrification reactor to be subjected to partial denitrification to generate the nitrite; the effluent is pumped into the anaerobic ammonia nitrogen reactor again to be subjected to the anaerobic ammonia oxidation reaction with residual ammonia nitrogen in the reactor and is then removed. The device and method have the advantages of improving the system nitrogen removal efficiency and improving the effluent quality, the effluent meets the emission standard, and the deep nitrogen removal can be realized.

The invention discloses a device and a method for quickly realizing shortcut biological denitrification through the combination of free ammonia (FA) restraining and a pH value, and belongs to the technical field of sewage biological denitrification. The device mainly comprises a raw water tank, a water inlet pump, a water inlet pipe, an alternate aerobiotic/anoxic reactor, an air compressor, an aeration pipe, an air disperser, a carbon source storage tank, a carbon source feeding pump, a carbon source feeding pipe, a stirrer, a pH determinator, a pH sensor and a water draining pipe. The aerobiotic aeration is implemented in the shortcut nitrification phase; under the condition of sufficient dissolved oxygen, ammonia nitrogen is oxidized to nitrite nitrogen by AOB in sludge, and the pH value is monitored at the same time; when the pH value appears the ammonia valley feature point, the nitrification reaction is finished, and the aeration is stopped immediately; an outer carbon source is added to implement the anoxic stirring, and the pH value is monitored at the same time; when the pH value appears the nitrite knee feature point, the denitrification is finished, and the precipitation and the water drainage are implemented. The pH value accurately controls the nitrification time and denitrification time, so that the shortcut nitrification can be quickly realized and stably maintained, and the bottleneck problem of the shortcut nitrification is solved.

The invention discloses a device and a method for strengthening autotrophic nitrogen removal and synchronous phosphorus recovery of nitrate wastewater through alkaline sludge fermentation. The devicecomprises an alkaline sludge fermentation coupling short-cut denitrification reactor and an autotrophic nitrogen removal and synchronous phosphorus recovery reactor. According to the method, under analkaline condition, hydrolysis acid production of remaining sludge is accelerated, a micromolecular organic carbon source is generated, and a large amount of ammonia nitrogen and phosphorus are released; under a high pH condition and a high fermentation environment, denitrifying bacteria are promoted to reduce nitrate into nitrite by using short-chain fatty acid, the nitrite and part of ammonia nitrogen generated by fermentation are removed under the action of anaerobic ammonia oxidizing bacteria, and the remaining ammonia nitrogen and phosphorus released by fermentation are separated and recovered in a struvite precipitation form; and the formed precipitate is beneficial to the granular growth and enrichment of anaerobic ammonium oxidation bacteria. According to the invention, by utilizing a novel short-cut denitrification and anaerobic ammonia oxidation coupled denitrification process, nitrogen pollutants in sludge and sewage are synchronously removed, and nitrogen and phosphorus resources are recovered, so that the device and the method have important economic and environmental benefits.

The invention discloses an industrial device and a treatment method for treating coal-gasification ammonia nitrogen wastewater by synchronous nitrification and denitrification, belonging to the field of wastewater treatment equipment and process. The industrial device is characterized in that a plurality of aeration tubes (3) are distributed in an aeration tank (1); a settling tank (4) is built on one corner of the aeration tank (1); a mud scraper (5) is arranged in the settling tank (4); a water draining hole (8) and a backflow hole (7) are formed on the tank wall of the settling tank (4); an aeration tank water outlet (6) is formed on the wall above the settling tank (4); a separating wall vertical to the aeration tank (1) and the settling tank (4) is built with a partition wall (2) for dividing the reaction zone of the aeration tank (1) into left and right sides; a wastewater tube (12) outlet, and the backflow hole (7) and the water draining hole (8) of the settling tank (4) are formed at the same side of the partition wall (2); the aeration tank water outlet (6) is formed at the other side of the partition wall (2). The industrial device and the treatment method disclosed by the invention can effectively remove ammonia nitrogen in the wastewater, can shorten reaction time, can improve nitrification and denitrification velocity, and can reduce process structures and capital expenditure.

The invention discloses a device and a method for deeply denitrifying landfill leachate based on in-situ induction of short-cut denitrification coupled anaerobic ammonia oxidation of sludge fermentation liquor, and belongs to the technical field of biological denitrification of wastewater with low carbon-nitrogen ratio and high ammonia-nitrogen ratio. In the device, a leachate raw water tank is sequentially connected with a short-cut nitrification SBR reactor, a middle water tank, an anaerobic ammonia oxidation SBR reactor and a water outlet tank, a sludge inlet storage tank is sequentially connected with a sludge fermentation tank and a sludge discharge storage tank, and a supernate discharge pipe of the sludge discharge storage tank communicates with the anaerobic ammonia oxidation SBR reactor. The method is suitable for fermentation reduction of residual sludge generated by a sewage treatment plant, realizes deep denitrification of the landfill leachate by in-situ domestication and short-cut denitrification of the sludge fermentation liquid in the anaerobic ammonia oxidation section, has the advantages of advanced process and obvious energy-saving and consumption-reducing advantages, is convenient for practical application, and provides conditions for combined treatment of the residual sludge and the landfill leachate.

Large-diameter entry rollers, and small-diameter entry rollers pressing against the large-diameter entry rollers via a conveyance belt enter a paper sheet in an accumulation part via an entrance slot. A central upper guide member makes contact with an upper surface of a central portion of the banknote. Both sides lower guide members guide the banknote while causing the banknote to curve in the shape of large U in a direction orthogonal to a conveyance direction of the banknote by lifting up both ends of the banknote entered in the accumulation part with the use of an upwardly curved tip. The front end of the banknote does not hang down despite being beaten by vanes, and the banknote goes between the vanes. The banknote is rotationally conveyed, hits the stoppers to stop, is disengaged from a swirling vane wheel, and is accumulated.

The invention discloses a fertilizing method capable of reducing influence of chilling damage on rice at a booting stage and belongs to the technical field of rice cultivation. According to the fertilizing method, phosphorus fertilizer as base fertilizer is applied to the field once, nitrogen fertilizer is applied to the field by stages in an application mass ratio of the base fertilizer, tillering fertilizer and earing fertilizer being 6:3:1, and potassium fertilizer is applied to the field by stages in an application mass ratio of the base fertilizer to the earing fertilizer being 7:3; potassium oxide content converted from total application amount of the potassium fertilizer is 100 kg/ha; N content converted from total application amount of the nitrogen fertilizer is 150 kg/ha; P2O5 content converted from total application amount of the phosphorus fertilizer is 55 kg/ha. The method can reduce the influence of chilling damage on the rice at the booting stage, has great significance in guarantee of stable yield of the rice and is applicable to prevention of the influence of chilling damage on the rice at the booting stage.

The invention relates to the biotechnology field, in particular to construction and application of a plant transient expression vector. An artificially synthesized sequence is adopted to improve a transcriptional quantity of the vector, meanwhile, an amino acid sequence is selectively added to improve the translation level and stability of target protein, and finally, a function of improving a cell accumulation quantity of the target protein in plant leaves can be integrally achieved.

The invention discloses blade shearing equipment for a shutter production line. The plate shearing equipment comprises a plate shearing machine, wherein an inclined sliding way is arranged at a discharging port of the plate shearing machine, the lower end of the inclined sliding way is connected with a horizontal conveying mechanism, a storage frame is arranged in front of the other end of the horizontal conveying mechanism, and the horizontal conveying mechanism is composed of a horizontal sliding way, a gear, a chain and a shifting rod; the shifting rod is composed of a first supporting rodand a second supporting rod, a torsion spring is arranged at a connecting shaft of the first supporting rod and the second supporting rod, and the second supporting rod is pressed on the side face ofa limiting plate vertically and fixedly arranged at the end of the first supporting rod through a restoring force of the torsion spring; a movable base plate driven by a lifting mechanism to ascend and descend is arranged in a groove in the middle of the storage frame, and a contact switch A is arranged on the side, opposite to the horizontal conveying mechanism, of the storage frame. According tothe equipment, sheared blades can be automatically arranged, and packaging or transferring by an operator is facilitated, so that the workload of the operator is reduced.