503results about How to "Increase dissolved oxygen content" patented technology

This invention relates to a combined vertical flow-vertical deflection wet land treatment technique for domestic wastewater. The technique comprises a pretreatment system and an artificial wet land system. The pretreatment system is mainly aim to removing the floating matters and precipitable suspended matters in domestic wastewater. The artificial wet land system is composed of combined vertical flow-vertical deflection in series. The invention has high removing rate on COD, N and P in domestic wastewater.

The invention relates to the technical field of prawn culture, in particular to a biological regulation culture method for large prawns. The method includes: building a standard high-place culture pond, comprehensive treatment of water source quality, culturing basic baits, putting in prawns, biological regulation of water quality and diseases of the high-place culture pond and the like. The method has the advantages that an efficiency and environment-friendly large prawn culture mode is provided, biological regulation using beneficial bacterium and algae is adopted, the prawns cultured by the method are large, high in quality and yield and good in culture effect, the problem of residual chemicals is eliminated, a novel development approach is provided for prawn culture industry, and the method is promising in market prospect.

The invention relates to a high-density fish culturing method. The high-density fish culturing method includes the steps of 1), throwing fish fries in a fishpond; 2), sealing the fishpond; 3), regulating water flow; 4), feeding feed; 5), draining water and sewage; 6), fishing. According to the step 2) of fishpond sealing, sealing cover seats are arranged on the inner wall of the fishpond, a sealing cover of an arched structure is arranged on the sealing cover seats, a vent valve is arranged at the top of the sealing cover, and an oxygenation pipe is arranged in the fishpond; after the vent valve is opened, water is injected into the fishpond until the water level exceeds the sealing cover seats, and then the vent valve is closed; oxygen is fed into the fishpond, and a sealed pure-oxygen space is formed between the water surface and the position below the arched sealing cover by undissolved oxygen. The high-density fish culturing method solves the problems of difficulty in further improvement on culturing density, oxygenation equipment complexity, high energy consumption, low pure oxygen utilization ratio and inconvenience in culturing and operation in existing industrial fish culturing.

The invention discloses a compound constructed wetland tail water treatment system, which belongs to the field of sewage treatment technology. The system mainly includes a pretreatment and a constructed wetland system. The pretreatment portion comprises an aeration oxidation pool and an ecological gravel bed; The constructed wetland system fuses a design of stabilization lagoon, which combines a vertical current constructed wetland and a surface flow constructed wetland, and a stabilization lagoon is arranged in step in series; the tail water to be treated passes the aeration oxidation pool, the ecological gravel bed, the vertical current constructed wetland, the stabilization lagoon in order, and finally passes the surface flow constructed wetland and flows out. The system combines physical, chemical and biological means organically, thereby effectively improving the tail water quality, and the water quality of water outlet basically reaches the surface water environment standard III grade, and the water outlet can directly returns to river ecological environment for supplementing water and can be used as city miscellaneous water; the invention has the advantages of low investment, simple operation, low energy consumption, high environment benefit and ecological benefit, etc.

The invention discloses a compound microecological preparation used for water body purification of aquaculture. The compound microecological preparation is prepared by taking photosynthetic bacteria, bacillus amyloliquefaciens and denitrifying bacteria thalli as active constituents with a volume proportioning of 1:2:1 of fermentation liquors of the photosynthetic bacteria, the bacillus amyloliquefaciens and the denitrifying bacteria thalli. The invention is characterized in that the compound microecological preparation can obviously reduce the content of substances of ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, COD and the like, in aquaculture water body. In the invention, strains have many types, rich quantity and strong environmental adaptivity, the three contained bacteria are all live bacteria; and the strains contain rich protein and vitamin and can also secrete multiple types of enzymes and anti-bacteria substances to promote cultivated living beings to grow and improve immunity of the cultivated living beings. Therefore, the invention can not only effectively purify the aquaculture water body, promote beneficial algae to reproduce and improve water body ecological environment, but also improve yield and quality of fish and shrimp; moreover, the invention is harmless to people and livestock, and can be produced in scale to be used for improving aquaculture environment.

The invention discloses an effluent treatment control system and on-line control method of A/O craft short distance nitrated and antinitrated, which is characterized by the following: the domestic sewage is used as dealing object at normal temperature; the DO sensor and pH sensor are installed in aerobic pool; the ORP sensor is set up in anoxic tank; the internal recycle sensor controls inner loop reflux quantity of system dynamically; the aeration quantity controls the aeration quantity of kinetic control system; the aeration quantity and inner loop reflux quantity are changed limberly according to water quality of inflow and water outlet; the level or nitration and anti-nitration are held accurately. The invention simplifies the craft, which reduces the cost.

The invention discloses a purifying device of backwash, aeration type hidden flow marshland water body and a method of purifying water body, wherein the whole purified pool display cube box; the separating pool separate the pool as downward pool and upper pool; the filling base material pack evenly in the pool; planting amphibious plant on the upper; setting cloth water pipe on the upper of the upper pool; making the upper of adjusting pool higher than purifying pool; setting inlet pipe and water-feed pump on the one side of the adjusting pool; setting admitting pipe and admitting pipe on the upper of the upper pool; setting aeration machine on one side of the purifying pool. The invention possesses high load factor, small plot area and good treatment effect, which can improve treatment effect.

The invention discloses a campus rainwater ecological cleaning integrated-processing method and an ecological cleaning integration system. The method comprises the following steps: 1) establishing an integration processing system for processing campus rainwater in a campus in advance; 2) selecting a proper processing method according to ecological purification conditions of different water bodies in the campus; and 3) finally collecting rainwater processed in the step 2) to a landscape water body in the campus, or discharging into a river in the campus, or collecting into the underground water layer of the campus. The system comprises an undercurrent type artificial wetland system for processing campus initial-stage rainfall runoff, a shoreland-area closure system for processing campus storm runoff, an ecological floating bed-aeration plug-flow system for processing campus natural revetment river water body, an artificial waterweed-micropore aeration system for processing campus hard revetment river water body, and a biomanipulation-fountain aeration system for processing campus enclosed pond water body. The beneficial effects comprise that the purification effect is good, the cost is low, the resource utilization rate is high and the purification effect is lasting.

The invention provides a submerged plant modularized growth bed and a method for recovering growth of underwater submerged plants. The submerged plant modularized growth bed comprises suspended solids, planting layers, plant layers, a growth substrate layer, a bearing layer and balance weight facilities, the submerged plant modularized growth beds are mutually connected to form an entire piece, micropores are formed in the bearing layer so that roots of the plants can penetrate through, the growth substrate layer adopts planting soil, the periphery of the planting layer is fixedly connected with the periphery of the bearing layer, the planting layers and the bearing layer wrap the growth substrate layer, the suspended solids are fixedly arranged around the submerged plant modularized growth bed, each suspended solid is hollow and is filled with air, and the balance weights are fixedly arranged at the lower end portion of the suspended solids to keep the depth of the modularized growth bed suspending on the water surface. The submerged plant modularized growth bed is reasonable in design, compact in structure, simple to manufacture, low in cost, simple to operate and convenient to manage, and the submerged plant modularized growth bed is degraded along with the growth of the underwater submerged plants, is free of pollution, protects the environment, is wide in application range, is widely popularized conveniently, and is favorable for recovery of the underwater submerged plants in different water areas.

The invention relates to an ecological floating island device equipped with an inflatable valve body, comprising the inflatable valve body and a floating island bearing plate, wherein the inflatable valve body comprises a modularized floating body; and the modularized floating body is fixed on the floating island bearing plate via a lock catch. According to the invention, with the adoption of the inflatable detachable floating body which is convenient to transport, an ecological floating island is convenient to assemble and maintain, and investment and running costs are reduced. The ecological floating island device disclosed by the invention is simple in design structure, is formed by jointing independent units, and is light in volume, easy to transport, and very convenient to assemble and maintain.

The invention discloses a preparing and purifying method of dealing modularization air-float artificial mattress of wastewater, wherein the main frame of bed display member frame structure as cube box; the bottom, angle and side wall connected with pipes; the top open up to the air; the grid plate is set on the bottom of the bed; the planting box is set on the grid plate; planting vegetation through the planting hole; setting several floats on the side wall; counteracting the weigh of bed body with floatage; keeping balance of bed body in the water; installing ports for passing water on the bottom of float bowl with at least 2 float bowl on the holder; inserting gas-filled lamp into float bowl through ports for passing water; equipping inflating gate valve on the other side of gas-filled lamp. The invention possesses rational structure and simply production, which can improve the survival rate of water plant.

Apparatus and methods for electroplating metal onto substrates are disclosed. The electroplating apparatus comprise an electroplating cell and at least one oxidization device. The electroplating cell comprises a cathode chamber and an anode chamber separated by a porous barrier that allows metal cations to pass through but prevents organic particles from crossing. The oxidation device (ODD) is configured to oxidize cations of the metal to be electroplated onto the substrate, which cations are present in the anolyte during electroplating. In some embodiments, the ODD is implemented as a carbon anode that removes Cu(I) from the anolyte electrochemically. In other embodiments, the ODD is implemented as an oxygenation device (OGD) or an impressed current cathodic protection anode (ICCP anode), both of which increase oxygen concentration in anolyte solutions. Methods for efficient electroplating are also disclosed.

The invention discloses a water quality improvement agent for aquaculture and a preparation method thereof. The water quality improvement agent is prepared from the following raw materials in percentage by weight: 5 percent to 10 percent of lactobacillus, 5 percent to 10 percent of photosynthetic bacteria, 5 percent to 10 percent of bacillus, 5 percent to 10 percent of brown sugar, 10 percent to 20 percent of activated carbon, 25 percent to 35 percent of zeolite powder, 3 percent to 5 percent of citric acid, 2 percent to 5 percent of sodium bicarbonate and 10 percent to 15 percent of calcium peroxide. According to the water quality improvement agent disclosed by the invention, organic matters in a water body of water for the aquaculture can be reduced, and the content of ammonia-nitrogen and nitrite is greatly reduced; the chemical oxygen consumption of pond bottom sludge is improved and oxygen debt of the pond bottom is alleviated; growth and proliferation of beneficial microorganismsand decomposition of organic pollutants are accelerated and the circulation of pond substances is accelerated; the proliferation of beneficial algae in a pond is accelerated so that the pond dissolved oxygen is increased; a culture water region environment is improved, healthy growth of aquatic animals is promoted, the feed coefficient is reduced and the economic benefits are increased.

The invention relates to a black-odor urban river three-dimensional in-situ ecological restoration system and an in-situ ecological restoration method. A water quality online monitoring unit is arranged in the black-odor urban river position; the output of the water quality online monitoring unit is connected with a data control center through a wireless transmission unit. The black-odor urban river three-dimensional in-situ ecological restoration system is characterized by also comprising an ECO Lab ecological model, a pollution control environment-friendly boat, an ecological reaction pool, a plant-natural biological membrane composite ecological floating bed and a micro-nano pushing flow aeration machine; the output of the ECO Lab ecological model is connected with the data control center. The quantity of rotifera, cladocerans and copepod organisms in the water body can be promoted to be obviously increased; the general quantity of the zooplankton can be increased by 1.5 to 3 times. The ecological restoration agent can be completely consumed by microbes; no secondary pollution exists. The system and the method have the advantages that the ammonia concentration is obviously reduced; the transparency is greatly improved; the dissolved oxygen content is improved by one order of magnitudes; the total phosphorus concentration is only 1/8 to 1/5 of that before the project; the chemical oxygen demand is only 1/8 to 1/5 of that before the project.

Disclosed is a tower earthworm bio-filter system, which is composed of a hydrolysis acidification tank and a multi-stage tower earthworm bio-filter. The hydrolysis acidification tank is a buried tank, the tower earthworm bio-filter employs modes of a modular structure, a gradient tower layer design and multistage units in series connection, and tower layers employ mode combination of a stair type or a rotary type. Inner water distributors are additionally arranged inside an earthworm bed for uniformly distributing water. The drop-aeration technique and the water spray technique are employed to increase the concentration of dissolved oxygen in sewage. The tower earthworm bio-filter system can effectively increase impact load to the sewage, and the surface hydraulic load can reach up to 1m3/ (m2,d). Capability of denitrification and dephosphorization of the system can be largely increased, total nitrogen removal efficiency of the system can be higher than 80% as tested, the total phosphorous removal efficiency can be more than 90%, and discharged water can meet the qualifications of GB8978-1996 national sewage discharge standard. The system is low in project and operation costs and less in accommodation area, can realize automatically controlling of operation, and is adaptable to domestic sewage treatment of relatively concentrated discharge at towns and villages and scenic spots.

The invention discloses a plant alga, zooplankton and fish automatic culture integrated device. Zooplankton, plant algae and fishes are separated through micro-filtration membranes for integrated culture, the food chain unbalance problem existing in polyculture is avoided, and convenience is brought to use; oxygen and carbon dioxide are mutually communicated to meet survival conditions required by internal animals and plants. Water resources are saved by means of a water circulation filtering mode, and a sterilizer in a water circulation module can be used for disinfection and sterilization to guarantee water quality. A magnetizer can convert large molecules into small molecules, water molecules can permeate the micro-filtration membranes more quickly, and the high content of dissolved oxygen in magnetized water makes the survival rate and quality of the animals and the plants improved. Excrement of the zooplankton and the fishes is collected and fermented and then serves as fertilizer of the plant algae for circulation, and the excrement is independently fermented to prevent water from being polluted and meanwhile can be absorbed and used by the plant algae more easily.

The invention relates to a method for preparing a water quality modifying microecological preparation for reducing ammonia nitrogen and nitrite nitrogen, and belongs to the technical field of aquiculture technology and ecological environmental protection. The microecological is prepared by the following steps: mixing Bacillus foecalis alkaligenes CGMCC NO.1.1786 and arthrobacterium CGMCC NO.1282 into mixed bacteria; performing fermentation on the mixed bacteria for 24 to 36 hours in a culture medium in a fermenter at the fermentation temperature of between 28 and 32 DEG C; processing the obtained product into a liquid preparation through filling or continuous dilution or concentration after fermentation culture; and preparing the water quality modifying microecological preparation with the functions of reducing the ammonia nitrogen and the nitrite nitrogen in a water body. The preparation is convenient to use, is slightly influenced by environmental conditions, has small dosage, can obviously reduce the content of the ammonia nitrogen and the nitrite nitrogen in a pool water body after use, maintains the effect for 10 to 15 days, can effectively prevent diseases and paroxysmal death of aquaculture organisms and improve the yield and the quality of the aquaculture organisms when simultaneously improving the environmental quality of the pool water quality and the survival conditions of the aquaculture organisms.

An automatic oxygen-enriching system for the undercurrent-type artificial wetland features that such units are sequentially arranged between the sewage inlet pipe and the water inlet of artificial wetland as water tank A, oxygen-enriching unit consisting of jet devices and water tank B, and the oxygen-enriching pipeline in artificial wetland is composed of at least two layers of horizontal pipes and the vertical tubes with top end which is extended out of the ground surface and bent by 180 deg.

The invention discloses an environment-friendly water purifier, preparation and using methods thereof. The water purifier is prepared by mixing a flocculating agent, a metal-chelator and microbes; under the combined action of the three ingredients, the purification effect of a water body can be strengthened, the water body quality can be remarkably improved, the water body becomes clear, odor can be eliminated, the hardness of the water quality can be reduced, the dissolved oxygen can be increased, the contents of ammonia nitrogen and nitrate nitrogen of the water body can be reduced, heavy metal ions can be reduced, pathogenic bacteria can be reduced, suspended matters and harmful algae in the water can be reduced, diseases of aquatic animals and plants can be reduced, degradation of pollutants in the water can be accelerated, and the aquatic ecological development is healthy and sound. The water purifier does not contain aluminum, iron, chlorine, heavy metal ions or other harmful substances, is safe, environment-friendly and healthy, has a remarkable effect of purifying sewage in the agriculture, animal, husbandry and fishery industries, domestic sewage and industrial sewage, and is of important meaning for environmental protection and human health protection.

The invention discloses an ultramicro bubble water purification device which comprises a floating body device floating on a water surface, a guiding device arranged below the water surface and a diving flow-pushing device arranged below the water surface, wherein a micro-nano bubble generation device, a controller and a pressure swing adsorption oxygen generation device are arranged on the floating body device; the floating body device comprises a buoy floating on the water surface, fixed plate faces on the buoy and anchors for controlling the whole floating body device to a certain position on the water surface; the micro-nano bubble generation device comprises a water inlet unit, a gas-liquid mixing unit and a bubble jet unit. The ultramicro bubble water purification device provided by the invention is simple in structure and convenient to use, can solve the problems that a water purification device at present is insufficient in oxygen increasing and damages natural water ecological environment and is high in energy consumption, can greatly reduce energy consumption and quickly increase dissolved oxygen in the water, and does not cause the damage of the whole water ecological environment while changing the living environment of aquatic lives in water.