520results about How to "Even distribution of water" patented technology

A sprinkler has a housing with an inlet portion and an outlet portion in which a first outlet aperture is formed. The first outlet aperture may cooperate with other outlet apertures to define a spiral shape. A cam is disposed upstream of the first outlet aperture. The cam is rotatable about a cam axis to cover varying portions of the outlet apertures. After moving through the outlet apertures, water strikes a deflector and is sprayed outward from the head. The orientation of the cam establishes an arc angle through which water is sprayed, including a full-circle spray pattern. The deflector may be stationary or rotatable. In one alternative configuration, the outlet apertures and each leads to a different strip nozzle. The cam has an open portion that can be rotated into alignment with each of the outlet apertures to determine which of the strip nozzles are active.

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

The invention aims at providing an advanced oxidation treatment device and an advanced oxidation treatment process of refractory organic wastewater, which are low in energy consumption, rapid in reaction speed, high in pollutant removal rate and low in operation cost. The device comprises a Fenton oxidizing tower, an oxidant feeding system and a catalyst feeding system, the Fenton oxidizing tower is a main device of the advanced oxidation treatment device, and the oxidant feeding system and the catalyst feeding system are respectively connected with multifunctional ejectors on two water inlet pipes of the Fenton oxidizing tower. The advanced oxidation treatment device and the advanced oxidation treatment process can treat refractory substances thoroughly, and chemical oxygen demand (COD) concentration of outlet water can reach below 50mg/L stably.

The invention provides a fluidized bed water treatment device realizing chemical crystallization circulating granulation. The device is characterized in that a water distribution area, a chemical distribution area, a granulation area and a clear water area are sequentially arranged in a cylinder from bottom to top; the granulation area is divided into three areas by an inner cylinder, an area close to the bottom in the inner cylinder is a fluidization area, an area close to the top in the inner cylinder is a separation area, an interlayer between the inner cylinder and the cylinder is a static settling area; the fluidization area is communicated with a seed crystal adding pipe, seed crystals circularly flow among the fluidization area, the separation area and the static settling area, and ions in water realize the chemical crystallization circulating granulation in the flowing process; the fluidization area is further communicated with a grain discharge pipe, and grains formed through the chemical crystallization circulating granulation are settled to the bottom in the fluidization area and discharged from the grain discharge pipe finally. The overall structure is clear, function units are compactly connected, the plane utilization rate is high, the operation is convenient, a certain single ion in multiple kinds of ions can be removed, and multiple kinds of ions in water can be removed efficiently and synchronously.

The invention discloses a soil column leaching device, which comprises a device body; the upper part of the device body is a leaching area, the lower part of the device body is a filtrate filtration area; the top of the device body is provided with an externally-connected type water distributor, the leaching area is communicated with a filtrate collecting area through a sieve and a porous plate; the leaching area is, from top to bottom, sequentially divided into a buffer layer, a surface soil layer, a subsoil layer, a fine quartz sand layer and a coarse quartz sand layer, and adjacent layers are respectively separated by at least one layers of sieve; the surface soil layer and the subsoil layer are respectively provided with a plurality of sampling ports; the filtrate collecting area includes a filter layer at the upper end and a filtrate collector at the bottom end, a downward-extending part of the top part of the filtrate collecting area is used as a support frame, the filter layer is positioned below the porous plate, the filtrate collector is located just below the filter layer, the filter layer is communicated with the device body through the porous plate and the sieve. The beneficial effects of the soil column leaching device are that: soil stratified sampling can be performed without segmentation of the device; by arrangement of the externally-connected type water distributor and the filtrate collecting area, water distribution is uniform, and solid-liquid separation can be achieved, and the soil column leaching device is convenient for experiment analysis.

The invention discloses an artificial wetland system taking oyster shell-waste brick-zeolite as composite filler. The invention relates to a sewage treatment device, and discloses an artificial wetland ecological treatment device applicable to the treatment of various sewages such as domestic wastewater, livestock and poultry breeding wastewater and landfill leachate. The system disclosed by the invention comprises a vertical undercurrent artificial wetland device and wetland filler, wherein the wetland filler is implemented in a large particle size grading difference 'obverse and reverse particle size mixing' filling mode and taking oyster shell, waste bricks and zeolite which are large in specific surface area, good in nitrogen and phosphorus adsorption capacity and high in volume of organism holding, so that the sustainable, efficient and stable operation of an artificial wetland ecosystem is ensured. The artificial wetland system disclosed by the invention has the advantages of low cost, low energy consumption, high nitrogen and phosphorus removal efficiency, small land-occupied area, simple structure, convenient operation management and the like, is not easy to jam, and can be combined with ecological construction and urban greening functions.

The invention relates to an integrated movement simulating platform and a simulating and testing method for migration, transformation and a final destination of groundwater pollution. The simulating and testing method comprises the following steps: firstly arranging the movement simulating and testing platform; then filling an aeration zone for simulating a typical hydrogeological unit, aquifer mediums and pollutant repairing mediums for simulating a typical permeable reaction barrier; finally performing a simulation experiment of the migration, the transformation and in-situ repair of the groundwater pollution on the simulating and testing platform. According to the invention, in order to satisfy the need for different experiment procedures, the pollutant entering the simulating and testing platform can be simulated in various manners, the simulation of a persistent pollution source or a provisional pollution source and the simulation of point source pollution or non-point source pollution are realized, and the whole process that the simulated pollutant penetrates through the aeration zone from the earth surface, enters into an aquifer and realizes the migration and the transformation in the aquifer can be clearly observed; the simulation of the migration, the transformation and the in-situ repair of the pollutant in the typical hydrogeological unit can be realized.

The invention discloses a square porous ceramics vertical-tube dew point indirect evaporation cooler device comprising a cooler core, a water-distributing device, a fan, a water-storage and a pump which are arranged inside a cooler casing. The cooler core is formed by a plurality of heat exchanging tubes which are vertically arranged to form a multi-line multi-row matrix form which is divided into three sections; the length of the three sections of heat exchanging tube decreases progressively along a first-time air feeding direction, and clapboards are arranged between each two sections of heat exchanging tube; the water-distributing device comprises a diversion grid and a spraying tube which are arranged on the top of each heat exchanging tube. The structure of the invention leads the first-time air to horizontally pass the square ceramics bundle and leads a second-time air to flow through the bundle from bottom to top; then the first-time air sequentially passes through the three sections of the core and the temperature of the air entering the second-air channels from different section is decreased gradually, and the temperature of the final wet-bulb is also decreased gradually after a heat and moisture exchanging with water. The structure of the invention can greatly enhance the heat and moisture exchanging efficiency and the water distribution becomes more equal so as to lead the temperature of vented air to approach that of the dew point.

The invention is a double-distillation type multiple effect distilled water machine, belonging to water distillation device. Its features lie in: the evaporator is divided into two segments, the upper one is steam-water separation segment, the lower is evaporating segment, the steam inlet arranged on the evaporating segment of the first effect evaporator is connected to industrial boiler steam source, the water condensing port is connected to preheater, the condensing ports of the following effect evaporator are connected to the condenser, there arranges a material condensed water discharging port on the last effect evaporator, the water pipe is connected to the water inlet of the first evaporator through condenser pipe and preheater. The invention can use the residue heat generated by the device, upgrades the use factor of heat and the reclaiming rate of distilled water, and the structure is compact.

The invention discloses a distributed domestic sewage treatment method. The method combines process units of anaerobic, jet oxygenation, biological oxidation, artificial wetland and the like together to perform anaerobic, aerobic and wetland ecological three-stage treatment on the domestic sewage so as to effectively reduce CODcr and BOD5 of the domestic sewage; and dephosphorization and denitrification are performed, and the effluent is stable and reaches the standards before emitting. A jet oxygenation pulse water distributor is adopted in the jet oxygenation, and the jet oxygenation pulse water distributor oxygenates the anaerobic effluent and provides pre-oxygenation treatment for a subsequent aerobic process; the biological oxidation is performed in a trickling filtration tower which is designed with 2 to 3 layers and provided with vent holes, a ceramic filler is placed in the trickling filtration tower, and the trickling filtration tower distributes water by adopting time control pulse so that the re-oxygenation effect of the trickling filtration tower can be improved and no power is consumed; and the artificial wetland is designed in an undercurrent form, proper fillers such as coal cinder, plaster, gravels and the like are placed in the artificial wetland, and pollutants can be further degraded and removed from the wetland environment. The method is suitable for standard-reaching treatment of rural or urban distributed domestic sewage.

The invention discloses a device and a method for quality-based rainwater collection, treatment and utilization. The device comprises an early-stage rainwater pond (1), an early-stage rainwater treatment plant bed (2), a middle-later-stage rainwater enhanced treatment bed (3) and a clean water pond (4) which are arranged under the ground, wherein the upper part of the early-stage rainwater pond (1) is communicated with the middle-later-stage rainwater enhanced treatment bed (3), the lower part of the early-stage rainwater pond (1) is communicated with the early-stage rainwater treatment plantbed (2) and the middle-later-stage rainwater enhanced treatment bed (3) is communicated with the clean water pond (4). The separation of seriously polluted early-stage rainwater and middle-later-stage clean rainwater is realized. By confining the early-stage polluted rainwater in the early-stage rainwater pond, the middle-later-stage clean rainwater is prevented from being polluted. On the basis of further enhanced treatment of the middle-later-stage clean rainwater, the rainwater is collected and stored and is used for greenery irrigation, road sweeping and the like. The resource utilizationof the rainwater is realized and the water resource is saved.

The invention relates to a spiral symmetrical flow anaerobic reactor, which comprises a water distribution region, a reaction region and a three-phase separation region, wherein the water distribution region, the reaction region and the three-phase separation region are respectively arranged on a reactor from bottom to top, the water distribution region comprises a bottom plate and a lower post body, the upper surface of the bottom plate is connected with the lower post body, the reaction region comprises a middle post body, the middle post body comprises a spiral flow reaction region and a free airspace region, a back flow pipe is arranged in the free airspace region, and a case of the three-phase separation region is respectively provided with a cone body, an upper post body and a coverplate from bottom to top. The spiral symmetrical flow anaerobic reactor has the advantages that the water distribution is uniform, the blockage is not easy to occur, the spiral symmetrical flow anaerobic reactor trends to the flat push flow state, the treatment efficiency is high, the liquid solid mass transfer effect is good, the organic load impact resistance capability is high, the intermediate product suppression is reduced, and the particle sludge and the recycled alkalinity can be effectively maintained.

The invention relates to a filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system comprising a pretreatment region, a main reaction region andan exhalant region, wherein the pretreatment region comprises a framed tube, an intake pipe, a filter bag, an air inlet pipe and a porous aerator; the main reaction region is formed by connecting a first unit, a second unit and a third unit in series; the bottom of the main reaction region is provided with a gravel water-distribution layer; a biological porcelain granule layer is distributed in the first unit; gravel and a steel slag layer are distributed in the second unit; a zeolite layer is distributed in the third unit; each unit is divided into a left grid and a right grid; the left gridis higher than the right grid; the top of an aquatic plant root region in the left grid is provided with a triangular weir; the pretreatment region and the main reaction region are connected by a perforated water-distribution plate which is arranged at one end of a gravel water-distribution layer; and the exhalant region comprises an exhalent pipe which is arranged at one side of the main reaction region. The invention has the advantages of high pollutant removal rate, stable system operation, greatly improved hydraulic load, small floor area, low operation and maintenance costs, and the like.

The invention discloses a method for utilizing high-load earthworm biological filter to treat decentralized sewage in countries, and relates to a sewage treatment method. The treatment method comprises the following steps: the decentralized sewage in the countries is firstly collected; suspended matter and floating matter are removed by a pretreatment tank; BOD5 is led to be 110 to 160mg/L, COD is 120 to 150mg/L and SS is 90 to 130mg/L; then the obtained mixture is pumped into the high-load earthworm biological filter according to hydraulic loading of 4 to 6m<3>(m<2> question mark d); after passing through a first earthworm biological filtering layer and a second earthworm biological filtering layer which are filled with light shale spherical porcelain granules (7) filtering media with the diameter of 3 to 7mm and 15000 to 28000 eisenia foetidas (8) are added on the surface of the filtering media per square meter, the water which is discharged from a settling tank (6) and has BOD5 of less than 15mg/L, COD of less than 60mg/L and SS of less than 15mg/L reaches the national water quality standard for field irrigation; little amount of residue sludge which is collected by the settling tank (6) and contains wormcast is used for improving the soil or is used as fertilizers. The method has large hydraulic loading, small occupy area, is hard to be blocked, has simple process and operation, good water outlet quality and low construction cost and operating cost and can be widely used for treatment of the waste water in rural areas.

The invention relates to a composite biological trickling filter for denitrification and dephosphorization, belonging to the technical field of sewage treatment. The biological trickling filter is cylinder-shaped and comprises a water distributing area, a stuffing layer and a water catch area from top to down; wherein, the water distributing area comprises a plurality of rollers, a rotary water distributor, a water inlet pipe, a water pipe, a water sprayer and tracks; the water inlet pipe is connected with the rotary water distributor, the rotary water distributor is connected with the water pipe which is provided with a water outlet, the water sprayer is positioned below the water pipe and is connected with the rollers; five layers of grid frames are arranged vertically in the stuffing layer, and the grid frames separate the stuffing layer into a grid structure, so that the stuffing layer is successively separated from bottom to top into a stone and sand layer, a composite steel slag stuffing layer, a plaster stuffing layer, a sawdust stuffing layer and a coke layer; the water catch area comprises a header tank, a water outlet pipe and a water catch plate, wherein, the header tank is positioned at the bottom of the trickling filer, and the water outlet pipe is connected with the header tank. By introducing the grid frames, the composite biological trickling filter has the advantages of eliminating the problems of the filter blockage, water accumulation and other defects, effectively improving the aerobic bacteria processing performance of the composite biological trickling filter, efficiently removing COD and simultaneously achieving the effects of denitrification and dephosphorization.

This invention relates to an anti-blockage inlet water distributor for artificial wetland, which comprises a punched pipe, an anti-shock baffle, a precipitation tank, a grid, a gravel area, and a porous water-distribution perforated wall. The punched pipe is set at the upper part of the water inlet face of the precipitation tank. The anti-shock baffle is in the precipitation tank facing the inlet of the punched pipe. The grid is set at the upper part of the water outlet face of the precipitation tank, and through connected with the water inlet face of the gravel area beside the precipitation tank. The porous water-distribution perforated wall is set at the water outlet face of the gravel area. The water outlet face of the inlet water distributor is set at the outer surface of the porous water-distribution perforated wall. The inlet water distributor can ensure uniform water distribution in all width and depth of the artificial wetland, and ensure normal working of the artificial wetland system.

The invention relates to an integral device for treating waste gas and high-concentration ammonia nitrogen containing waste water. The integral device comprises an ammonia nitrogen stripping zone, a gas gathering zone, a cleaning and dedusting zone, a defogger, an activated-carbon adsorption layer and an exhaust fan; the ammonia-nitrogen stripping zone is provided with a precipitate discharge valve, an air intake tube, an air distribution tube, a waste water intake tube, a waste water distributor, a three-phase separator and an waste water discharge tube; the waste water intake tube is connected with a lye adding and metering mechanism; the gas gathering zone is provided with a gas-liquid separator, a gas gathering hood, a gas gathering tube and a stripping air pump, wherein the gas gathering tube and the stripping air pump are connected with a sulfuric acid adsorption tank; a waste gas cleaning and dedusting zone is provided with a treated water spraying device, a waste gas intake tube, a waste gas distribution tube and a treated water circulation pump; the middle part of the integral device is cylindrical, and the upper end and the lower end of the integral device are shaped like conical tanks; the integral device is arranged vertically; and the topmost conical tank of the integral device is provided with the exhaust fan.

The present invention relates to a batch type constructed wetland sewerage treatment method and a system thereof, wherein the system comprises a cell body, a filling, a water intake pipe, a water output pipe and a ventilating pipe. The cell body is filled with matrix filling and is provided with a ventilating pipe, wherein plants are planted in the filling. Each performance period of the system comprises four steps of feeding water, reaction, discharging water and emptying, and the system runs in a manner of an ordinal batch type and a repetitive cycle period. The water intake pipe is switched in from the upper part, and the reaeration of the system bottom at reaction stage is intensified by the ventilating pipe, which improve the nitration efficiency. After the reaction finishes, discharging is carried out by the bottom water output pipe, and then the constructed wetland is at an emptying and idlesse step, wherein the reaeration of the constructed wetland system is completed, so as to improve the nitration efficiency of the system, the oxidative decomposition of sludge and the jam of the system. The present invention has the advantages of high efficiency, excellent denitrogenation effete, small occupation of land, little energy consumption, low cost, and is not easy to be jammed.

The invention relates to an integrated A/O bacteria filter device for treating dispersed wastewater, which has a cylindrical structure in shape. The center of the integrated A/O bacteria filter device is provided with a cylindrical erect flow primary settling tank, a baffle wall is arranged between an inner cylinder body and an outer cylinder body, and a space is divided into an adjusting tank, a hypoxia bacteria filter, an aerobe filter, a clear water tank and a mud storage tank. The aerobe filter and the clear water tank are in a concentric circle arc structure. Wastewater in the adjusting tank is lifted into the primary settling tank through an air lifter, the settled wastewater and recycled nitrification liquor are together distributed into the hypoxia bacteria filter for denitrification, the bottom and the middle part of the hypoxia bacteria filter are provided with backwashing pipelines which can realize subsection washing; the hypoxia bacteria filter is communicated with the bottom of the aerobe filter, the denitrified wastewater overflows from the surface into the clear water tank for outputting after organic matters are removed and nitrification is carried out in the aerobe filter. The backwashing wastewater of the device flows into the adjusting tank per se, and mud in the primary settling tank is lifted into the mud storage tank through the air lifter. The invention has the advantages of less investment, little operation cost, longer mud discharge period and convenient management, thereby being suitable for treating the dispersed wastewater in countryside.

The invention discloses intensive integrated water purification equipment. The equipment is separated into five sections according to difference of water purification units, and the five sections are connected through flanges; and the equipment is provided with a mud collecting area, a primary flocculation area, an inner-cylinder clustering flocculation area/and an outer-cylinder sludge concentration area, a sludge separation area, an inclined tube sedimentation area, a backwashing gas distribution area, a filtration area, and a clear water area from bottom to top. The equipment is provided with devices such as an agitator blade used for particles to form agglomerated floc, a rotary gas distribution plate used for gas-water backwashing of a filter material, small-space spiral sloping panels used for concentrating sludge and the like; and the whole equipment is simple in structure, water purification functional units are compactly connected, the flat plane utilization rate is high, and the equipment is convenient to operate, can maximize the water purification function, and has important practical significance for medium and small water supply systems.

The invention discloses a wavy subsurface-flow constructed wetland landscape water body treatment system and method. The system combines a horizontal subsurface-flow constructed wetland with a vertical subsurface-flow constructed wetland to form a wavy subsurface-flow constructed wetland. By means of regularly arranging upper clapboards and lower clapboards inside the wetland and replacing a horizontal flow state with a wavy flow state, sludge flows in a plurality of modes which are connected in series and alternate in upstream and downstream flows, so that organic nutrient substances are sufficiently degraded to remarkably promote deposition of phosphorus; the sludge is repeatedly subjected to anaerobic and aerobic treatment, so that removing of nitrogen can be facilitated; appropriate limestone is added into the filler of the wetland to release Ca<2+>, so that phosphorus in the sludge generates insoluble deposition of calcium phosphate, and thus the removal rate of phosphorus is increased. Due to the adoption of modes, such as intermittent water distribution, water inflow to a water distribution pipe by forming openings in the bottom as well as serial or parallel operation of a plurality of wavy subsurface-flow constructed wetlands, the bed body of the constructed wetland plays a relatively large efficiency, the removal rate of nitrogen phosphorus and organic matters is increased and the sludge treatment capability is enhanced.

The invention discloses a self-oxygenation biological filter bed for sewage treatment. The self-oxygenation biological filter bed comprises an anaerobic catchment pretreatment system, an automatic oxygenation aerobic biological filter bed system and an anaerobic undercurrent ecological solid phosphorus system which are connected in sequence, wherein the automatic oxygenation aerobic biological filter bed system comprises a filter bed tank body, an aerobic biological filter material, a sewage distribution device laid on the surface of the aerobic biological filter material, a tunnel type air diffusion device embedded at the bottom of the aerobic biological filter material and a plurality of vertical air draft pipes communicated with the tunnel type air diffusion device; the filter bed tank body is filled with the aerobic biological filter material; the anaerobic undercurrent ecological solid phosphorus system comprises a solid phosphorus system tank body, a second catchment distributing well, a catchment outlet well, an anaerobic biological filter material and a phosphorus fixing agent; the second catchment distributing well and the catchment outlet well are respectively arranged on the water inlet side and the water outlet side of the solid phosphorus system tank body; the anaerobic biological filter material and the phosphorus fixing agent are arranged in the solid phosphorus system tank body in the sewage push flow direction. The self-oxygenation biological filter bed has the advantages of being free from power operation, low in possibility of blockage, high in seasonal adaptability, high in denitrification and phosphorus removal efficiency and easy to manage and maintain and wide in application range.

The invention discloses a soil anammox bacterium gathering system simulating a natural environment, comprising a water intake tank, a peristaltic pump, a time controller, a reactor main body, a spray head, an earth pillar, a disc with holes, a support, a water discharging pipe, a precipitation zone, a sludge discharging pipe, a packing layer, a plurality of sludge taking ports, circular holes of the disc and circular holes of the spray head, wherein the lower part of the reactor main body is provided with the support, the reactor main body is sequentially provided with the spray head, the earth pillar, the disc with holes, the packing layer and the precipitation zone from top to bottom, the bottom of the reactor main body is provided with the water discharging pipe and the sludge discharging pipe, the sludge taking ports are arranged on the side wall for placing the earth pillar on the reactor main body, the upper end of the spray head is sequentially connected with the peristaltic pump and the water intake tank, and the peristaltic pump is connected with the time controller. The soil anammox bacterium gathering system has the advantages that an earth layer with the corresponding depth is put in the earth pillar to establish the earth pillar simulating the natural environment so as to be beneficial to the gathering of anammox bacteria in soil; the time controlling assembly realizes the intermittent water intake of the reactor; and the gathering system completely simulates the original ecology and can gather the anammox bacteria in a soil ecosystem.