57 results about "Oxygen deprivation" patented technology

The invention relates to a method of treating diverse human disorders that may arise, in part, out of sleep hypoxia and oxygen deprivation occurring in the context of sleep apnea / hypopnea disturbances. The disorders that may be treated by the invention comprise gastroesophageal reflux disease (GERD), asthma-associated gastroesophageal reflux (GER), GER-associated asthma, asthma, cardiomyopathy, cardioarrhythmia, congestive heart failure, sudden infant death syndrome, and diverse neurologic conditions. The mode of treatment uses somatostatin receptor ligands (SstRLs), particularly somatostatin-receptor agonists. The invention concerns the method of treatment utilizing, and compositions comprising SstRLs and somatostatin receptor agonists, including agonists of the somatostatin receptor types 2 and 5, particularly, the type 2A receptor (SsR-2A), including octreotide and lanreotide.

Certain known and novel pyruvate derivatives are particularly active in restoring or preserving metabolic integrity in oxidatively competent cells that have been subjected to oxygen deprivation. These pyruvate-derived compounds include, but are not limited to oximes, amides, pyruvate analogues, modified pyruvate analogues, esters of pyruvate (e.g., polyol-pyruvate esters, pyruvate thioesters, glycerol-pyruvate esters and dihydroxyacetone-pyruvate esters). Such pyruvate derivatives (including single tautomers, single stereoisomers and mixtures of tautomers and / or stereoisomers, and the pharmaceutically acceptable salts thereof) are useful in the manufacture of pharmaceutical compositions for treating a number of conditions characterized by oxidative stress.

This document provides systems and methods for testing and assessing cognitive performance of a user over a period of time in order to test environmental effects and other factors on the performance of the user. For example, cognitive performance over a period of time can be assessed for users experiencing stress conditions including hypoxia (oxygen deprivation), hypothermia, sleep deprivation, fatigue or other factors that may cause degradation in cognitive performance. Furthermore, the systems and methods described herein can be used to identify when hypoxia has manifested in the cerebral circulation of an individual rather than merely in the extremities of an individual.

Certain known and novel pyruvate derivatives are particularly active in restoring or preserving metabolic integrity in oxidatively competent cells that have been subjected to oxygen deprivation. These pyruvate-derived compounds include, but are not limited to oximes, amides, pyruvate analogues, modified pyruvate analogues, esters of pyruvate (e.g., polyol-pyruvate esters, pyruvate thioesters, glycerol-pyruvate esters and dihydroxyacetone-pyruvate esters). Such pyruvate derivatives (including single tautomers, single stereoisomers and mixtures of tautomers and / or stereoisomers, and the pharmaceutically acceptable salts thereof) are useful in the manufacture of pharmaceutical compositions for treating a number of conditions characterized by oxidative stress.

Certain known and novel pyruvate derivatives are particularly active in restoring or preserving metabolic integrity in oxidatively competent cells that have been subjected to oxygen deprivation. These pyruvate-derived compounds include, but are not limited to oximes, amides, pyruvate analogues, modified pyruvate analogues, esters of pyruvate (e.g., polyol-pyruvate esters, pyruvate thioesters, glycerol-pyruvate esters and dihydroxyacetone-pyruvate esters). Such pyruvate derivatives (including single tautomers, single stereoisomers and mixtures of tautomers and / or stereoisomers, and the pharmaceutically acceptable salts thereof) are useful in the manufacture of pharmaceutical compositions for treating a number of conditions characterized by oxidative stress.

The invention discloses a device and a method for coupling short-cut denitrification phosphorus removal with anaerobic ammonia oxidation, and belongs to the field of biological sewage. The method comprises the following steps: performing anaerobic phosphorus release on phosphorus-accumulating bacteria by utilizing organic carbon sources in domestic sewage after municipal sewage flows into an A2O-SBR reactor and synthesizing into a PHA storage body; enabling a portion of nitration liquid in an N-SBR reactor to flow back to the A2O-SBR reactor for performing oxygen deprivation reaction; performing micro-aeration on the A2O-SBR reactor after the oxygen deprivation reaction is finished so as to complete the absorption of surplus phosphorus and air stripping of nitrogen; standing and precipitating; introducing a portion of drained water of the A2O-SBR reactor into the N-SBR reactor to finish short-cut denitrification; keeping stand and precipitating after short-cut reaction; enabling a portion of supernate to flow back to an oxygen deprivation section of the A2O-SBR reactor and introducing the other portion of supernate and the other portion of drained water of the A2O-SBR reactor into an Anammox-SBR reactor for performing anaerobic ammonia oxidation. According to the device and the method, the carbon sources are reduced, the aeration rate is reduced, the nitrogen and phosphorus removal efficiency is increased, the yield of sludge is reduced, the device and the method are suitable for municipal sewage with low C / N ratio, and the synchronous depth nitrogen and phosphorus removal requirement is met.

Certain known and novel pyruvate derivatives are particularly active in restoring or preserving metabolic integrity in oxidatively competent cells that have been subjected to oxygen deprivation. These pyruvate-derived compounds include, but are not limited to oximes, amides, pyruvate analogues, modified pyruvate analogues, esters of pyruvate (e.g., polyol-pyruvate esters, pyruvate thioesters, glycerol-pyruvate esters and dihydroxyacetone-pyruvate esters). Such pyruvate derivatives (including single tautomers, single stereoisomers and mixtures of tautomers and / or stereoisomers, and the pharmaceutically acceptable salts thereof) are useful in the manufacture of pharmaceutical compositions for treating a number of conditions characterized by oxidative stress.

The invention provides a method for treatment of wastewater from dry distillation of coal. By adopting a technology of combining units of oil isolation, cyclone air flotation, filtration, extraction dephenolization, rectification and ammonia distillation, biological oxygen deprivation, SBR oxidation, CWPO oxidation, coagulation sedimentation and the like, the method can effectively remove organicpollutants like coal tar, ammonia nitrogen and phenols in the wastewater from dry distillation of the coal, wherein the oil removal rate of a cyclone air flotation unit reaches 93.8%; the volatile phenol removal rate of an extraction dephenolization unit reaches 98.3%; and the ammonia nitrogen removal rate of a rectification and ammonia distillation unit reaches 95.8%. The method provided by the invention has mature technology, is stable and reliable, can treat the wastewater from dry distillation of the coal to reach the direct discharge requirements of the Emission Standard of Pollutants forCoking Chemical Industry GB16171-2012, and has popularization values.

The invention relates to micro-nano bubble water seed-soaking and germination-accelerating equipment and a germination-accelerating method. The equipment comprises a seed soaking chamber, a germination accelerating chamber and a control system, wherein a seed soaking water tank is arranged in the seed soaking chamber, a gas-liquid mixing tank is connected to the outer side of the seed soaking water tank and is connected with a gas-liquid mixing pump, and the gas-liquid mixing pump is connected with an air source and a water source respectively; a seed soaking film is arranged in the seed soaking water tank, and a micro-bubble aerator is arranged below the seed soaking film; a germination accelerating disc is arranged in the germination accelerating chamber, an atomization spraying head isarranged above the germination accelerating disc and is connected with a high-pressure pump in the seed soaking chamber; and a lighting lamp, a temperature control device, a blowing device and corresponding sensors are arranged in the germination accelerating chamber. The equipment has the beneficial effects that air, oxygen or ozone are dissolved into water by virtue of a micro-nano bubble generation technique so as to form micro-nano bubble water, and the micro-nano bubble water is utilized for sterilization, disinfection and oxygenation of seed soaking water, so that seed decay caused due to fungi and bacteria can be reduced, and the rotting problem caused due to oxygen deprivation can be thoroughly solved.

The invention discloses a method for intensively inducing aerobic sludge granulation by means of humic acid, and belongs to the technical field of wastewater treatment. The method comprises the following steps that inoculation sludge obtained after pre-aeration treatment is put into a sequencing batch (SBR) reactor and then cultured with artificially-synthesized simulated domestic wastewater; in the culturing process, when microorganisms are in a starvation state, processed natural earthy browncoal humic acid materials are put into the SBR reactor, wherein the SBR reactor runs in a water feeding-aeration-oxygen deprivation-secondary aeration-precipitation-water drainage mode for 3-4 cycles every day, each running cycle lasts 6-8 hours, and the reactor needs to be idled for a period of time after running for one cycle every time. According to the method, the processed humic acid materials are added, the growth speed of aerobic granule sludge is increased after reasonable running control procedures are conducted, and the aerobic granule sludge with a simultaneous denitrification function can be obtained after culturing is conducted for about 12-20 days.

The invention relates to an intelligent simulated ecological fresh air monitoring and adjusting air purification device. Functions of a wireless module, a comprehensive detection module, a touch control panel, a light ray sensing circuit, an MCU single-chip microcomputer main control panel and mobile phone client software are achieved, and the defects that if an indoor air purifier is used for a long time, indoor oxygen deprivation is caused, harmful gas cannot be effectively and completely discharged, forced air exchange is carried out in a solidified pattern, indoor energy consumption lossesare large, and the actual use effect is poor are overcome; purified air and led-in fresh air are considered, according to the current indoor air quality needs and setting, automatic switching is carried out, indoor air cleanliness and freshness are kept for 24 hours, losses are small, energy consumption is small, and the air quality and the life quality are improved; comprehensive air quality monitoring enables the device to be more efficient, energy-saving, and better in air quality; multiple work modes and mounting manners are selected, the intelligence degree is extremely high, the structure is compact, setting is reasonable, wind mechanics design is reasonably made, and the whole air path is low in vibration and noise.

The invention discloses an autotrophic denitrification / nitration denitrification and dephosphorization method for recycling coupling iron through organic matter of domestic sewage. The method is characterized by comprising the steps that the organic matter in the domestic sewage is sufficiently absorbed by activated carbon; substances containing iron are put into an oxygen deprivation pond, and nitrate nitrogen, nitrite nitrogen and phosphorus in the sewage are removed; the activated carbon after adsorption is added to a water heating kettle for water heating treatment; ammoniacal nitrogen inthe sewage is converted into nitrate nitrogen and nitrite nitrogen through nitrifying bacteria; the water outlet part flows back to the oxygen deprivation pond, nitrate nitrogen and nitrite nitrogen are removed in the iron autotrophic denitrification process, and the other enters a secondary sedimentation pond for sedimentation; the water and sludge are discharged separately, and finally the effect of recycling, denitrifying and dephosphorizing the organic matter in the domestic sewage is achieved. According to the method, the operation cost is low, an external carbon source does not need to be added, the organic matter, total nitrogen and total phosphorus in the domestic sewage are efficiently removed, and through a water heating method, the organic matter in the sewage can be recycled, carbonized and recycled.

Provided are methods for enhancing hippocampal plasticity and hippocampal-mediated learning and memory, and / or enhancing the synaptic maturation of neurons, and / or optimizing or enhancing neuronal synaptic transmission, and / or enhancing intracellular oxygen delivery or utilization, and / or enhancing ATP synthesis, comprising administration, to a subject in need thereof of a sufficient amount over a sufficient time, of an ionic aqueous solution of charge-stabilized oxygen-containing nanostructures (e.g., nanobubbles) having an average diameter of less than 100 nm (e.g., in at least one subject group selected from but not limited to normal subjects, subjects recovering from neurological trauma (e.g., accidents or injury to the brain, stroke, oxygen deprivation, drowning, and asphyxia), and subjects with learning disorders (e.g., dyslexia, dyscalculia, dysgraphia, dyspraxia (sensory integration disorder), dysphasia / aphasia, auditory processing disorder, non-verbal learning disorder, visual processing disorder, and attention deficit disorder (ADD)).

The invention provides a method for performing denitrifying phosphorus removal through an anaerobism-nitration-oxygen deprivation-nitration technology, and belongs to the technical field of municipal sewage treatment. Domestic sewage firstly enters an A2SBR reactor, and PHA and released phosphorus are stored in the anaerobic stage; static setting draining is performed, supernatant liquor rich in ammonia nitrogen enters an N-SBR reactor to complete a nitration reaction, and after the reaction is finished, nitrated liquor yielding water flows back to the A2SBR reactor to generate an oxygen deprivation denitrifying phosphorus removal reaction; after the reaction is finished, static setting is performed, and drained water enters the N-SBR reactor again to perform a nitration reaction of retained ammonia nitrogen; after the nitration reaction is finished, static setting is performed, and yielding water is drained out of a system. According to the method, a double sludge theory and a denitrifying phosphorus removal technique are applied, the new A2N2 technology which is operated according to the sequence of anaerobism, nitration, oxygen deprivation and nitration is represented, and through flexible control over the SBR reacting sequence, the problem that the ammonia nitrogen content is too high in yielding water of a traditional A2N technology is solved, and deep denitrification is achieved; meanwhile, carbon resources are saved, and the method is suitable for the current situation of the domestic sewage with the low C-N ratio in China.

A device to regulate the burning of a candle is provided using a passive extinguisher that requires no mechanical parts or human intervention. The device is formed as tongs that form, when closed, a hollow cylindrical extension that can securely hold a burning candle. When the burning candle burns into the cylindrical extension, the flame is extinguished by operation of oxygen deprivation.

The invention belongs to the field of water environment protection, and particularly provides an ammonia-adsorption-based improved SBR biological nitrogen and phosphorus removal system and method for low-carbon-source sewage. The method is an improvement to a traditional SBR technology, and comprises the steps of (1) adding a powdery adsorbent in the system to promote ammonia adsorption of sludge and the adsorbent and to promote settling of the sludge at the same time; (2) additionally adding an anaerobic tank; and (3) changing a specific operating procedure of an original SBR. Sewage enters an SBR reaction tank after running through the anaerobic tank, and a circulating procedure of the SBR reaction tank comprises (1) water ingress, (2) oxygen deprivation, (3) sedimentation and water discharging, and (4) aeration. The most important difference between an SBR operating procedure part of the method and the traditional SBR is as follows: firstly, the front-end anaerobic tank is added, secondly, sedimentation and water discharging are conducted immediately after the oxygen deprivation procedure is carried out, and aeration is conducted on the sludge which is obtained after sedimentation and water discharging are conducted. The method is suitable for municipal sewage with a low carbon-nitrogen ratio, moreover, the nitrogen and phosphorus removal efficiency is high, the technology is simple, and energy consumption is low.

The invention relates to a bamboo product waste water treatment system. The bamboo product waste water treatment system comprises a wastewater equalization pond, a reinforced floatation tank, an ozonation sedimentation basin, a baffled anoxic / anaerobic reaction tank, an aerobiotic catalytic oxidation tank, a secondary sedimentation tank and a sand filter, wherein the reinforced floatation tank is sequentially provided with a mud-and-sand area, a mixing area and a separating area; the ozonation settling pond comprises an aeration mixing area and a settling zone, the baffled anoxic / anaerobic reaction tank comprises an aerobic section, an anoxic zone and an anaerobic which are separated by baffle plates; the aerobiotic catalytic oxidation tank is provided with a water inlet pipe, a water distribution triangular cone and an aeration regulator control system; waste water enters a reinforced floatation tank to remove scummings through the adjusting tank, and then enters the ozonation settling pond to oxidize and decompose pollutants, and then enters the baffled anoxic / anaerobic reaction tank and the aerobiotic catalytic oxidation tank to carry out oxygen deprivation, anaerobic digestion and aerobic reaction, and meets the discharge standard after the precipitation and the filtration.

A process for making hemoglobin based oxygen carrier (HBOC) containing pharmaceutical composition suitable for oral delivery and the composition formed thereby are described. There are three exemplary composition configurations which include (1) hemoglobin-loaded nanoparticles solution, (2) enteric-coated hemoglobin capsules and (3) enteric-coated hemoglobin tablets. To facilitate the bioavailability and bio-compatibility of hemoglobin, intestinal absorption enhancers are added in each of the HBOC formulations. Protective layers ensure delivery of an intact hemoglobin structure in intestinal tract without degradation in the stomach. The HBOC formulations may be used for preventive or immediate treatment of high altitude syndrome (HAS) or for treatment of hypoxic conditions including blood loss, anemia, hypoxic cancerous tissue, and other oxygen-deprivation disorders. In addition to delivering oxygen, the heme group of hemoglobin from HBOC formulations can provide heme iron to the human body to aid in the production of more red blood cells.

The invention provides a box-type cultivation device which comprises a box body, a mesh core and a water level device, wherein at least one drainage groove is formed in the mesh core; drainage groove meshes are formed in the drainage groove; spilling holes matched with the height of the drainage groove are formed in one side wall of the box body and used for controlling the maximum water level; and the water level device is mounted in the box body and used for observing the height of the water level in the box body. According to the box-type cultivation device, the requirement for moisture environment balance needed by a plant is met, a plant root system cannot be fully immersed in water, so that oxygen deprivation is avoided, a cultivation medium cannot be too dry, and soilless cultivation can be performed conveniently; besides, the water level can be conveniently controlled, and the box-type cultivation device has the advantages that the structure is simple, and the box-type cultivation device is convenient to move, suitable for family cultivation and easy to popularize.

The invention relates to an oxygen-bearing hydrogenated yttrium photo-thermal discoloration multilayer thin-film material. The oxygen-bearing hydrogenated yttrium photo-thermal discoloration multilayer thin-film material comprises an oxygen-bearing hydrogenated yttrium dimming layer, an oxygen deprivation-state tungsten oxide functional layer and a protective layer, and the oxygen-bearing hydrogenated yttrium dimming layer, the oxygen deprivation-state tungsten oxide functional layer and the protective layer are formed on a base plate in sequence.

The invention relates to a particle type suffocation-preventing emergency mask capable of releasing water and oxygen. The emergency mask comprises a mask body and hangers. The hangers are arranged on the two sides of the mask body which comprises a wrapping gauze layer, a filtering layer, an oxygen-supply moisturizing layer and a breathable soft pad layer, wherein the filtering layer, the oxygen-supply moisturizing layer and the breathable soft pad layer are sequentially arranged in the wrapping gauze layer from outside to inside. The filtering layer is used for filtering poisonous gas and smoke generated in a fire hazard, so that air is purified, and poisoning accidents are avoided; the oxygen-supply moisturizing layer can release water to keep the cotton pad layer wet, high-temperature dry air is cooled and humidified, and therefore intense stimulation on the respiratory tract is avoided; oxygen particles are decomposed by water to generate a large quantity of oxygen, so that oxygen in air sucked in by a human body is supplemented, deaths by suffocation due to oxygen deprivation in the fire hazard are avoided, and the first-aid effect in the fire hazard is achieved. Besides, the mask is light in structure, low in price and easy to wear and can be popularized in hospitals, schools, factories, office buildings and all families.

The invention discloses a gas baking method and device for an aluminium electrolysis cell. The method comprises the following steps of: heating a cell cavity to 900 DEG C, and directly pouring electrolyte into the cell cavity for starting; in the heating process of the cell cavity, dividing the cell cavity of the electrolysis cell into a plurality of areas, respectively arranging controlled burners at multiple spots of each area, wherein the controlled burners are uniformly distributed and are arranged under the bottom palm of the positive pole of the big surface of the aluminium electrolysis cell in a staggering mode, and controlled draught flues are respectively arranged in the central joint of the cell cavity and at multiple spots of the side surface of the cell cavity so as to reduce the temperature difference between all the areas; and in the baking process, controlling the ratio of the gas to the air to be less than 1:3, and preventing carbon blocks from oxidizing in a controlled oxygen deprivation combustion mode. The device comprises the plurality of controlled special-shaped burners and the controlled draught flues, wherein the controlled special-shaped burners are uniformly distributed and are arranged under the bottom palm of the positive pole of the big surface of the electrolysis cell in a staggering mode, and the controlled draught flues are arranged in the central joint of the cell cavity and at the multiple spots of the side surface of the cell cavity. The invention is beneficial to the uniform heating of the cell cavity, reducing of the temperature difference between all areas and the oxidation of the carbon blocks in the baking process.

The invention discloses application of EIF5A2 to preparation of an esophageal squamous cell carcinoma prognosis reagent. Real-time quantitative PCR (Polymerase Chain Reaction) detection data shows that expression of the EIF5A2 in esophageal squamous cell carcinoma tissues is obviously higher than that in corresponding non-tumor tissues. An immunohistochemical data analysis result shows that expression of the EIF5A2 is positively correlated to lymphatic metastasis, the tumor invasion depth and neoplasm staging. Kaplan-Meier analysis shows that a patient overexpressed by the EIF5A2 has poor overall survival (p is less than 0.001). Multivariate analysis also proves that the EIF5A2 is an independent prognostic factor. The EIF5A2 possibly takes important effects in invasion and metastasis of esophageal squamous cell carcinoma. Further experimental data proves that overexpression of the EIF5A2 can be caused by gene amplification and oxygen deprivation; the EIF5A2 can be combined into a promoter region of HIF1a to up-regulate expression of the HIF1a; and the EIF5A2 can induce epithelial-mesenchymal transition conversion and promote angiopoiesis of the esophageal squamous cell carcinoma so as to promote invasion and metastasis of the esophageal squamous cell carcinoma. Knockout of the EIF5A2 can obviously inhibit tumor metastasis and the silent EIF5A2 is expected to be a potential target of esophageal squamous cell carcinoma treatment.

The invention relates to an energy-saving emission-reducing vertical fire-tube boiler capable of using water as oxidant. A plurality of water jackets (water containers) are serially connected, a vertical fire tube heating mode is adopted, the water can be used as the oxidant, combustion efficiency is high, the quantity of consumed oxygen is low, accordingly, a heat exchange effect is improved, heat efficiency is enhanced, and energy is saved. A combustion principle of the energy-saving emission-reducing vertical fire-tube boiler includes that hydrogen and carbon are used as energy carriers, and energy can be exchanged between hydrogen and carbon. The carbon or hydrocarbon and water realize 'oxygen deprivation' reaction in a high-temperature environment, namely high-temperature steam is used as the oxidant to realize thermal chemical reaction with the carbon or the hydrocarbon, and hydrogen-rich gas is generated. Energy is absorbed during hydrolysis while energy is released during oxidation of the carbon, and energy is exchanged between the carbon and the hydrogen. The high-temperature environment is required when the energy is exchanged between the carbon and the hydrogen, and the energy is only consumed to maintain the high-temperature environment required by the thermal chemical reaction. Accordingly, by the aid of the energy-saving emission-reducing vertical fire-tube boiler, smokeless combustion of coal can be realized, and biomass fuel containing a large amount of water, domestic garbage and industrial and agricultural combustible waste are suitable to be used as energy sources.

A device to regulate the burning of a candle is provided using a passive extinguisher that requires no mechanical parts or human intervention. The device is formed as tongs that form, when closed, a hollow cylindrical extension that can securely hold a burning candle. When the burning candle burns into the cylindrical extension, the flame is extinguished by operation of oxygen deprivation.

The invention discloses alga-type highly-concentrated food and a preparation method. The alga-type highly-concentrated food is prepared by chlorella pyrenoidosa, sodium alginate, carrageenan, xanthan gum, sodium carboxymethylcellulose, potassium sorbate and magnesium carbonate in proportion. The preparation method solves the problem that in alga culture, oxygen deprivation is caused at night due to the fact that too many living algae are added, the influences caused by adding the living algae when the algae are used as biological indicators for conducting toxicity testing are reduced, and the precision of toxicity testing is improved. Due to the fact that the product is the highly-concentrated food, so that only a small number of algae need to be added during culture, the feeding frequency can be greatly reduced and the alga culture efficiency is improved.

The invention relates to a high-temperature-resisting compressed oxygen self-rescuer for fire prevention and protection and rescue. A protective jacket is arranged outside the self-rescuer and consists of an aluminum foil radiation-resisting and temperature-resisting layer, a flame-retardant and heat-insulating layer and an inner protecting layer which are arranged from outside to inside; a compressed oxygen bottle, a rebreathing bag, a CO2 absorbent and a proportioning valve are arranged inside the projective jacket; a breathing mask connected with the proportioning valve is arranged outside the protective jacket; the compressed oxygen bottle is tapped with a pressure gauge, a silencer II and an opening valve through a silencer I; the opening valve is connected with the proportioning valve through a silencer III; the proportioning valve is connected with the rebreathing bag; the rebreathing bag is connected with a breathing valve and the CO2 absorbent through a pipeline Y. According to the high-temperature-resisting compressed oxygen self-rescuer disclosed by the invention, fire resistance, fire prevention, radiation resistance and heat insulation can be effectively realized; the high-temperature-resisting compressed oxygen self-rescuer is necessary for users to breath in toxic or harmful environment, a dense smoke environment and an extreme oxygen-deprivation environment of a fire scene, and provides a chance for the users to quickly escape from disaster scenes and be rescued.

The invention discloses a multi-level fish alternate culturing pond. The multi-level fish alternate culturing pond comprises a plurality of culture pond bodies and filtering circulation systems arranged on the side faces of the culture pond bodies and are matched with the culture pond bodies respectively. The culture pond bodies are sequentially arranged in parallel, every two adjacent culture pond bodies are communicated through a communication port, fish control valves used for regulating the density of the culture pond bodies are arranged on the communication ports, flow rate meters used for monitoring the water flow rate of the culture pond bodies and power pumps used for controlling the water flow rate of the culture pond bodies are arranged near the communication ports, water inlet pipes of the filtering circulation systems are arranged on the upper portions of the lateral walls of the culture pond bodies and water draining pipes are arranged at the bottoms of the lateral walls of the culture pond bodies. The multi-level fish alternate culturing pond is simple in structure and brings convenience to multi-level alternate culture of fishes; due to the fact that the whole operation process is high in controllability, the problems that the cultured fishes suffer from diseases and die due to oxygen deprivation and mechanical injuries are not prone to occurring.

The invention discloses an efficient method for treating chemical wastewater. The method comprises the processes such as an adjustment tank, a hydrolysis acidification pool, an oxygen deprivation pool, an aerobic pool and a secondary sedimentation pool of a sewage treatment factory and is characterized in that inoculated sludge is added in the processes; microorganisms are main bodies for sludge purification, culture, selection and domestication of active sludge of the adjustment tank, the hydrolysis acidification pool and an AO pool are used as innovation points of the method, existing conditions of engineering are sufficiently used, in necessity, engineering technology measures such as temporary active sludge backflow are adopted, the general technical problems of slow starting and low efficiency of a biochemistry system in the industry are solved, the biochemistry anaerobic technology is improved, and the B / C ratio is increased, so that the degradation efficiency of the biochemistrysystem is improved. According to the efficient method, chemical wastewater can be effectively treated, and the sludge amount reaches the design demand as much as possible in shortest time.