144results about How to "Increase hydraulic load" patented technology

A device includes a balloon and an interface. The balloon has an outer surface and a central lumen aligned on a longitudinal axis. The balloon is configured to receive a compressible fluid. The interface is coupled to the outer surface and has an external surface configured to bond with a tissue.

The invention discloses a wastewater treatment system for a novel intermittent water supply biological filter. The novel biological filter is improved from an ordinary biological filter, employs a mixed filter material with relatively small particle sizes to improve an effect of water treatment, and adopts a method of frequently alternating waterflooding states and air-drying states of a filter material layer and installing bottom vent pipe, to replace a natural ventilation for oxygenating and to avoid a blockage of the filter material layer. The intermittent water supply biological filter adopts broken stones (gravels) with particle sizes of 1-2 centimeters mixedly incorporated in particles, with the same size, of magnetite, graphite (or nut shell activated carbon), volcanic, limestone and activated zeolite, as filter materials for water treatment, and can adopt filter materials with diameters of 0.5-1 centimeters if pollutant concentrations of inlet water are relatively low. A height of the filter layer is 1.5- 2 meters; an intermittent quick water distribution is adopted; usually, a water distribution time for every water distribution is 20 minutes; an air-drying state lasts for 60-120 minutes; and a hydraulic load is designed for 2-4 m3/m2d. The biological filter has the advantages of good water quality for outlet water, high hydraulic load, low investment, low energy consumption, low operation cost and simple management, and is particularly suitable for treating domestic wastewater of small cities.

The invention provides a subsurface flow and surface flow complex manmade wetland. The complex manmade wetland comprises a land, a subsurface reservoir and a surface reservoir, a surface collecting pool and a subsurface collecting pool. One side of the land is provided with the subsurface reservoir and the surface collecting pool, and the other side of the land is provided with the subsurface collecting pool and the surface collecting pool. The subsoil of the land is filled with a gravel layer, and the upper soil is covered with a pastoral earth; the filling depth ratio between the gravel layer and the pastoral earth is 3: 2. Emersed plant, floating plant and submerged plant are planted on the pastoral earth of the upper soil of the land; the subsurface collecting pool is communicated with the surface reservoir through a water pipe equipped with a valve. The invention combines the advantages of subsurface wetland and surface wetland such as high water purification efficiency, high water quality, high hydraulic load, low investment and operational charge, and good treatment effect; according to actual need, a plurality of measures can be used such as alternatively adopting subsurface flow and surface flow, subsurface flow and surface flow.

The invention discloses a shore type ladder-grade two-dimensional surface flow water filtering riverbed in-situ ecological remediation method. A riverbed space is utilized sufficiently, and the section of the riverbed is designed into functional regions including a central main river tank, a ladder-grade two-dimensional surface flow base bed, a shore water distribution ditch and the like in sequence from inside to outside, and a certain water level gradient is kept. A river vertical hydraulic gradient and an upstream residual position water head are utilized to arrange facilities including a water distribution short dam and the like at an inlet end of a remediation unit; water from a riverbed upstream is distributed to the shore water distribution ditch and the central main river tank according to the ratio. Water distribution weirs are uniformly distributed on the inner side of the water distribution ditch and are used for distributing the river water to the ladder-grade two-dimensional surface flow base bed; the river water flows through the ladder-grade base bed in a manner similar with a transverse flow regime vertical to a central line; the base bed is internally filled with substances and aquatic plants are planted to establish a complete ecological system; meanwhile, water quality is strengthened and purified and a river ecological system is remediated; the water discharged from the base bed is collected to the central main river tank so that the in-situ ecological remediation of a shore type ladder-grade two-dimensional surface flow water filtering riverbed of one unit is finished.

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 provides an iron and steel complex comprehensive wastewater treatment device and process. The device comprises a coagulation unit, a biochemical treatment unit, a filter unit and an ozone catalytic oxidation unit. The biochemical treatment unit comprises a nitrification biofilter and a denitrification biofilter. The coagulation unit, the denitrification biofilter, the nitrification biofilter, the filter unit and the ozone catalytic oxidation unit are connected in order; or, the coagulation unit, the ozone catalytic oxidation unit, the denitrification biofilter, the nitrification biofilter and the filter unit are connected in order; or, the coagulation unit, the nitrification biofilter, the denitrification biofilter, the filter unit and the ozone catalytic oxidation unit are connected in order. The device can remove COD and ammonia nitrogen from wastewater synchronously at low cost, has the advantages of high treatment efficiency, good stability, strong impact resistance ability and simple operation, can flexibly selects the connection form of the treatment units according to the water quality condition, can realize the whole course flow by gravity, lowers energy consumption, and is conducive to project promotion.

The invention discloses a garbage leachate advanced treatment method and a Fenton reaction tower. The advanced treatment method comprises the following steps: (1) treating garbage leachate in a membrane bioreactor; (2) sending effluent water treated by the step (1) into a Fenton reaction tower, and carrying out advanced oxidation treatment; (3) sending the effluent water treated by the step (2) into a precipitation tank; (4) sending the effluent water treated by the step (3) into an anaerobic aeration biofilter; and (5) sending the effluent water treated by the step (4) into an aerobic aeration biofilter, and discharging the effluent water after reaching the standard. The method is simple to operate and low in operating cost, does not generate any concentrated solution, can implement energy saving and emission reduction in deed.

The invention relates to a device and a method for integrally processing garbage percolate, wherein the device comprises a denitrification mechanism, a polymerizing reaction tank, a sloping plate/pipe sedimentation tank, a biochar filter bed, an SMBR reactor and a medicine dissolving and dispensing mechanism, wherein the medicine dissolving and dispensing mechanism comprises three parallel medicine dissolving tanks including an alkali liquor tank, a flocculation liquid medicine tank and a flocculation aid liquid medicine tank; the three medicine dissolving tanks are respectively communicated with an alkali liquor medicine adding hole on a liquid inlet pipe of a stripping tower and a flocculation medicine adding hole and a flocculation aid medicine adding hole of pipelines communicated with a denitrification settling water tank and the polymerizing reaction tank. The treatment method comprises ammonia nitrogen stripping, coagulating sedimentation, biochar filter bed treatment, SMBR reactor treatment, nanofiltration and/or reverse osmosis treatment. The device and the method consist of a high-efficiency ammonia nitrogen stripping tower, whirl grid coagulation, sloping plate (pipe) setting, the biochar filter bed and the SMBR reactor, integrates the advantages of a garbage percolate treatment process and solves the problem of difficult treatment and high expense of the garbage percolate. The high-efficiency ammonia nitrogen stripping tower has high utilization rate on gases, a new gas distribution structure improves the energy efficiency, and the invention has the advantages of reducing the occupied area and reducing the operation expense.

The invention discloses a capillary infiltration ditch system for treating the domestic sewage, consisting of a surface soil layer, a sand-soil layer, an artificial soil layer and a water-guiding layer from the top to bottom in sequence; wherein, plants are planted on the surface soil layer, wherein, the soil layer of the surface is planted with the plants; in the surface soil layer and the artificial soil layer, a surface water distribution pipe and an inner water distribution pipe are respectively provided with surface cloth tube and deep cloth tube communicated with a hydrolysis acidification unit or a septic tank; the periphery of the water distribution pipe is the green pebble encapsulated with an earthwork cloth; the water-guiding layer is provided with a water-discharging pipe communicated with the water-discharging pool and an air-drawing duct for naturally forcing the ventilation with an air-drawing principle. With higher water-force load, the invention has a higher removal efficiency of the COD, BOD5, total phosphorus, NH4<+>-N, TN in the domestic sewage. The effluent achieves the national sewage comprehensive discharge standard. The invention has the advantages of low cost in the basic construction and an operation management, small impact by the environment, no public health problems as well as vegetables and economic plants- planting. The invention is particularly applied to treat the distribution sewage with a high cost pipe building and a high requirement of the nitrogen and phosphorus removal.

The present invention relates to reinforced oxidizing process of treating waste water containing toxic organic matter. By means of the excitation of externally applied energy, catalyst, oxidant and oxygen generate synergistic effect to produce strongly oxidizing ozone and free hydroxyl group degrading toxic organic matter, the catalyst being in fluidized or semi-fluidized state during the reaction. The present invention also provides the technological apparatus, which consists of one energy generator, one reactor, one tail gas collector, one water distributor and one water inflow pump. The present invention has short treating period, high treating efficiency and great treating capacity.

A process for using mineralized garbage to treat the sewage generated by domestic animal and fowls includes such steps as filling the mineralized garbage which has been buried for 5-40 years on the reaction bed, pumping the high-concentration sewage while has been anaerobically treated and filtered onto the top of said reaction bed for spraying it, reaction, and draining the water in water pool. Its advantage is high effect on removing chromaticity, SS, CODcr, BOD5, NH3-N, P and colibacillus.

The invention discloses a method for treating village sewage and a specific device thereof. The specific device comprises a sump pump and a multifunctional deflection processing module connected with the sump pump. The multifunctional deflection processing module consists of three anaerobic units which are named Pool 1-3, two aerobic units which are named Pool 4-5, and a depositing unit named Pool 6; the pools are connected by pipelines. The anaerobic units are all provided with vent holes; the aerobic units are both provided with suspended upper and lower metal meshes; compartments between the metal meshes are filled with fillings; the lower layer of metal mesh is provided with a gas distributing hole which is connected with an aeration machine. The detailed operation steps of the method are described in the specification. The method and the specific device of the invention integrates physical processing techniques including depositing, filtering and the like, and biochemical processing techniques including anaerobic oxidation, aerobic oxidation and the like, thereby degrading organic substances in the sewage, fixing inorganic salt and reducing nutriment like nitrogen and phosphorus. The method and the specific device have the advantages of large hydraulic load and excellent processed water quality. Therefore, the method and the specific device are especially suited to national conditions of our country.

The invention relates to a rapid manual land infiltration treatment system and a method for purifying river water by applying the same. The treatment system consists of a water inlet pump, a regulating tank, a flow meter, an infiltration tank, a water collecting tank, a water distribution pipe entering the infiltration tank, and a water collecting pipe flowing out of the infiltration tank. Natural sand and at least one of zeolite and lava are used as a filling of the infiltration tank. When in operation, the infiltration tank is biologically domesticated and cultured by means of natural biofilm culturing in advance, is alternatively water-flooded for 12 to 72 hours, and are dried for 12 to 72 hours in 20 to 80 days in total of domestication; river sewage enters the regulating tank after being pumped by the water inlet pump, and are settled for 0.5 to 5 hours in the regulating tank; the settled sewage is distributed by the water distribution pipe and freely flows into the infiltration tank; after the settled sewage is water-flooded for 12 to 72 hours and dried for 12 to 72 hours, the infiltration solution is collected by the water collecting pipe and is then discharged into a river.

The invention discloses a treatment system for ferment antibiotics wastewater. The treatment system comprises an adjusting tank, a cavitation air floatation machine, a coagulative precipitation tank,a hydrolysis acidification tank, a UASB reactor, a primary sedimentation tank, an A/O system, a secondary sedimentation tank, a Fenton oxidation reaction box, a reaction sedimentation tank and a sludge thickening tank which are successively connected. The invention further discloses a treatment method for the ferment antibiotics wastewater. The treatment method comprises the following steps: pretreatment: the adjusting tank, the cavitation air floatation machine and the coagulative precipitation tank; biochemical treatment: the hydrolysis acidification tank, the UASB reactor, the primary sedimentation tank, the A/O system and the secondary sedimentation tank; and advanced treatment: the Fenton oxidation reaction box and the reaction sedimentation tank. The combined technology is used for treating the ferment antibiotics wastewater, the biotoxicity of the ferment antibiotics wastewater is reduced, and the biodegradability of the wastewater is improved, so that the wastewater is discharged after reaching a standard, the treatment technology is simple, and the operating cost is low.

The invention discloses a high-density clarifying tank. The clarifying tank comprises a flocculation reaction device, a clarifying and concentration device which are connected in series, wherein the flocculation reaction device comprises a mechanical agitation zone device, the mechanical agitation zone device comprises an agitation tank and a mechanical flocculation reaction unit arranged in the agitation tank, a hydraulic mixing zone device is connected in series behind the mechanical agitation zone device, a partition wall is arranged between the mechanical agitation zone device and the hydraulic mixing zone device, the bottom of the partition wall is provided with a water communication hole, then the clarifying and concentration device is connected in series with the hydraulic mixing zone device, and a submerged weir is arranged between the clarifying and concentration device and the hydraulic mixing zone device. The invention improves the surface hydraulic load, decreases the occupied area and has the advantages of good flocculation effect, high sludge concentration and good quality of outlet water.

The invention discloses an ecological type manual fast-permeability sewage processing system, which is used for purifying and processing sewage. Suspended solid in the sewage can be firstly intercepted by a grid tank (1), and the sewage can then flow into a micro aeration tank (3) through a drainage pipeline which is arranged at the lower part of a regulating tank (2) after the water quality and the water quantity are subjected to equalizing regulation by the regulating tank (2); and the sewage can flow into an ecological fast-permeability tank (4) to be subjected to purification processing after being subjected to aeration processing by the micro aeration tank (3), is collected by a water collecting pipeline (7) which is arranged at the bottom, and can be discharged after flowing into a post-positioned denitrification tank (5) and being subjected to denitrification processing. The ecological type manual fast-permeability sewage processing system disclosed by the embodiment of the invention has the advantages of being less in field limit, less in occupied area, high in hydraulic loading, good in water outlet efficiency and easy in operation and management; and due to the implementation of the ecological type manual fast-permeability sewage processing system, the removing ability for TN (Total Nitrogen) and TP (Total Phosphorus) is increased, each water outlet water quality index is stably up to the level A emission standard, the investment cost and the running cost can be reduced, and the ecological landscape effect can be increased.

The invention discloses a backflow vertical wetland sewage treatment process and device, and application of the process and the device. A vertical flow artificial wetland, a horizontal subsurface flow wet land and a reservoir are combined into a vertical structure from top to bottom. Circular treatment of sewage is achieved by laying a water level monitor to control the operation condition of a circulating pump, and each batch of sewage treatment capacity and treatment time are controlled and regulated by matching with a relay. Compared with a traditional artificial wetland, the backflow vertical wetland sewage treatment process has the advantages of being small in floor area, large in hydraulic loading, low in energy consumption, easy to operate and quick to remove pollutants; the conventional effluent water quality indicators CODCr, SS, TN and NH4<+>-N are much lower than the concentration threshold (GB18918-2002) defined by the first grade A standard of urban sewage treatment; the pesticide content in the effluent accords with the hygienic standard for drinking water (GB5749-2006); and the heavy metal content of the effluent reaches the surface water class II water standard (GB3838-2002). According to the backflow vertical wetland sewage treatment process, automatic treatment of the artificial wetland sewage is achieved, and the problem of poor single removal effect on organic matters and nitrogen pollutants in sewage through the artificial wetland is solved.

The invention discloses a garbage percolate treatment method, and belongs to the technical field of waste resource treatment. The method adopts an anaerobic and aerobic mode to treat garbage percolate, and comprises the following steps that: the garbage percolate is collected in an adjusting tank; after the garbage percolate is evenly stirred, the pH is adjusted, and the garbage percolate is injected into an anaerobic reactor and subjected to anaerobic fermentation at a temperature of between 30 and 39 DEG C; the anaerobic effluent enters a primary aerobic system, the flow rate of the water in an aerobic tank reaches 0.2 to 1 meter per second under the action of an aeration device, then a biochemical environment with a high dispersion system and high transfer mass is formed in a reaction tank, and the wastewater is subjected to high-strength oxidation treatment; the garbage percolate enters a secondary aerobic system and is subjected to anaerobic, facultative aerobic and aerobic multi-level circulating treatment, and ammonia and nitrogen are fully discomposed and removed under the circular action of denitrification and nitration; the secondary aerobic effluent is subjected to coagulation treatment in a sedimentation tank, and the effluent color is solved; and the sludge is used for reflowing and fertilizing gardens and parks. By applying the method, the clean energy source which is methane can be acquired, and the aim of the garbage percolate can be treated at low cost.

The invention discloses an integrated treatment system for rural domestic sewage and a process of the system. The integrated treatment system comprises a tank body, and an inlet water adjusting unit, a treating unit and an effluent adjusting unit, which are sequentially communicated with one another in the tank body, wherein the treating unit comprises an anaerobic hydrolysis acidification treating chamber and a stacked ecological filter treating chamber; a zigzag sewage channel is arranged in the anaerobic hydrolysis acidification treating chamber; the inlet of the sewage channel is communicated with the inlet water adjusting unit; a filling material is arranged in the sewage channel; the stacked ecological filter treating chamber comprises an upper ecological filter and a lower ecological filter which are separate from each other; a water distribution pipe communicated with the outlet of the sewage channel is arranged at the top of the upper ecological filter; water collection gas-dispersion pipes with through holes are arranged in the upper ecological filter; the top of the water collection gas-dispersion pipes extend to positions above the upper ecological filter; the bottoms of the water collection gas-dispersion pipes are communicated with the lower ecological filter; the lower ecological filter is communicated with the effluent adjusting unit. According to the integrated treatment system provided by the invention, anaerobic hydrolysis acidification treatment and stacked ecological filter treatment processes are integrated, so that reaeration capacity of a soil seepage system is improved and a favorable condition is created for aerobic/anaerobic reaction.

The invention discloses a sewage treatment method based on blasting laminated artificial wetland, which belongs to the technical field of sewage treatment. The sewage treatment method includes that (1) pretreated sewage is obtained after sewage is filtered and digested in an anaerobic manner, and enters the blasting laminated artificial wetland, the blasting artificial wetland structurally comprises an upper layer and a lower layer, and packing is uniformly filled in the blasting laminated artificial wetland; (2) the pretreated sewage in the blasting laminated artificial wetland is uniformly distributed on the top of the upper layer, and contacts with air blasted into the blasting laminated artificial wetland to be biologically degraded when flowing to the bottom of the upper layer; and (3) the sewage is gathered at the bottom of the upper layer after being biologically degraded and then flows into the lower layer, horizontally flows in the lower layer and is decontaminated in an anoxic environment, an anaerobic environment and an aerobic environment sequentially, and sewage treatment is completed. The method is used for treating domestic sewage in rural areas, and has the advantages of high treatment efficiency, fine treatment effect and low operation cost.