275 results about "Water district" patented technology

The invention discloses a high-speed water-supply biological aerated filter (BAF) and a method of applying the filter to pre-purify micro-contaminated raw water. The high-speed water-supply biological aerated filter comprises two UBAFs which are symmetrically arranged on two sides of a water distributing channel which is arranged on the upper part of a pipe rack where pipes are arranged. The water distributing channel comprises a general water-feeding channel, a first distributing channel, a second distributing channel, a strainer frame and a fixing grid provided with strainers. The micro-contaminated raw water pre-purifying method is as follows: the raw water enters a water distributing zone on the lower part of the filters after distributed and filtered by strainers, and then the water is distributed by filter heads and flows through a pebble bearing layer and a double-layer ceramsite filtering-material of the filters from bottom to top. The same-direction steam and water and the adoption of the double-layer light water-supply ceramsite filtering-material can delay the acceleration lost by the filter heads and provide the essential hydraulic conditions for the high-speed filtering and the collective adoption of a blast aeration system. The invention has high hydraulic load, low manufacturing cost and energy-conserving capability, and can guarantee the efficiency of purifying organisms and ammonia nitrogen. The invention is suitable for the biological pre-purifying to the micro-contaminated water supply.

The invention aims to provide a composite sedimentation tank with small area and high usage efficiency of effective volume. Wastewater enters a water distribution area in a central pipe through a water inlet pipe; then slurry enters a sedimentation zone for sludge-water separation through a gap between a horn mouth and a reflecting plate; clarified water rises to a clarification zone and overflows to an overflow drain through an overflow weir for discharging; the sludge with higher specific gravity sinks to a sludge area, and is scraped into a sludge hopper by a sludge scraper of a center driving sludge scraping device, and discharged from a sludge discharge pump and a sludge discharge pipe. Compared with a conventional sedimentation tank, the sedimentation tank provided by the invention is in a square structure, can be implemented in a modularization way and combined with other wastewater pretreatment facilities and the follow-up wastewater treatment facilities in a modularization way, has the advantages of compact structure, high utilization rate of occupied area, area saving by 20%-30%, and can further improve volume utilization ratio and sedimentation effect of the sedimentation tank.

The invention relates to an underground water advection percolation system used for town sewage treatment, concretely comprising a water distribution region, a filler bed, water distribution baffles, aerator pipes, a water collecting region, impermeable layers, geotechnical cloth interlayers, a surface planting soil layer and plants. The whole of the system provided by the invention is of a strip-shaped groove bed body structure, the water distribution region and the water collecting region are respectively arranged at the two ends of the filler bed body, the water distribution baffles divide the filler bed into a plurality of compartment units, aerator pipes are arranged at the lower part of filler in each odd number compartment, aeration rate can be regulated, the impermeable layers are arranged at the bottom of the filler bed and the periphery of the filler bed, a plurality of geotechnical cloth interlayers are paved at the upper part of the filler bed, the surface planting soil layer is arranged at the upper part of each interlayer, and crops can be planted. According to the system provided by the invention, multi-stage water distribution baffle design is adopted, so that contact uniformity of sewage and filler is effectively improved; biomass carbon modified filler substrate is adopted, and soil layers are planted, so that sewage purification performance is enhanced; and alternate filler bed aerator design is adopted, so that a multi-stage aerobic n / anoxia m alternate mode is presented in a filler bed body, and total nitrogen removal effect of the system provided by the invention is improved.

The invention provides a novel Fenton fluidized bed and a wastewater treatment method thereof. The Fenton fluidized bed comprises an oxidation tower, a sieve plate, filler A, filler B, a Fenton oxidation zone, a ferric carbon reaction zone, a water inlet and distribution zone, a water outlet zone, a water outlet groove, a circulating device and necessary pipe fittings. The wastewater treatment method provided by the invention comprises the following steps: treating wastewater by adopting the Fenton fluidized bed, and distributing water by virtue of an annular perforated pipe and a bottom-layer sieve plate; reducing COD of the wastewater and persistent organic pollutants by carrying out Fenton reaction, then enabling the wastewater to enter the ferric carbon reaction zone, and further carrying out catalytic oxidation on the persistent organic pollutants in the wastewater under the ferric carbon microelectrolysis condition. The Fenton fluidized bed provided by the invention is optimized in structure, economic, reasonable and high in treatment efficiency.

The invention discloses a novel device and method for testing permeability coefficient of permeable concrete. The novel device comprises a constant-pressure water zone, a permeable zone and a permeated water collecting and data processing zone, wherein the constant-pressure water zone can adjust water pressure difference; the permeable zone is divided into three sections, the lower part is a waterinlet pipe, constant-pressure water flows from the lower part to the upper part, the section is also provided with a drain valve, and when a test piece is replaced, excess water is drained so as to facilitate operation; the middle part is a permeable pipe, and the permeable pipe is divided into two halves which can be detached so as to facilitate the mounting of the test piece; an upper pipe is an overflowing surface, and permeated water flows out through the designed overflowing surface and enters a collecting part; the three parts are connected through flange connection; the permeated watercollecting and data processing zone independently calculates the permeability coefficient mainly through a water temperature and permeable capacity measuring system. Through the novel device and themethod, common problems of most of permeability coefficient measuring instruments can be effectively avoided, test data are accurate, and the test piece is fast to mount and connect; data recording isconvenient, and when a water flow is stable, a test button is pressed and a system automatically tests the permeability coefficient of the test piece and stores a result.

The invention discloses a self-circulation efficient biological denitrification device and a working method thereof. Technical scheme is that a pool body is respectively provided with an aerobic zone,an anoxic zone, a precipitation pool water distribution zone, a sludge zone, a sludge-water separation zone and an effluent steady flow zone from bottom to top; the precipitation pool water distribution zone comprises a precipitation pool water inlet flow-guide cylinder positioned in the center of the pool body; a circular butterfly type jet flow water distributor is arranged between the bottom of the precipitation pool water inlet flow-guide cylinder and the top of the aerobic zone; the precipitation pool water inlet flow-guide cylinder is connected to flow-guide plates distributed in the aerobic zone, the anaerobic zone and the sludge zone; the flow-guide plate is used for three-phase separation and reflux, comprises three sections, and forms a nitrification liquid reflux seam and a sludge reflux seam; and an aerator for providing reflux power is arranged at the bottom of the aerobic zone, is connected to a gas inlet pipe located outside the pool body, achieves nitrification liquidreflux through aerated tail gas pressure, and achieves sludge reflux through negative pressure suction formed by aeration. According to the invention, the device has advantages of reflux pump eliminating, energy saving and the like.

The invention relates to a gabion ecological water body bulkhead structure. The structure comprises a slope water district and a slope buffer bulkhead connected in order; a gabion dead wall is arranged between the slope water district and the slope buffer bulkhead; a first geotechnical cloth layer is wrapped on each of the bottom of the gabion dead wall and the side closed to the slope buffer bulkhead; the gabion is formed by overlapping multiple net cages filled with stone blocks in a layered and staggering way; the slope buffer bulkhead comprises an afforest concrete layer, a broken stone hardcore and a second geotechnical cloth layer orderly paved from top to bottom; and a wetland plant layer is paved on the afforest concrete layer. Compared with the prior art, the gabion ecological water body bulkhead structure has the advantages of purified water body, energy conservation and environment friendliness, reliable structure and convenient construction.

The invention belongs to the technical field of thermostatic heating devices and relates to a thermostatic valve core and a self-heating metal thermostatic tap made by using the same. A cold water region is communicated with a cold water inlet; the cold water region and a heating water region are communicated by a water inlet valve; the heating water region is internally provided with an electric heater, the heating temperature of the electric heater is controlled by a water temperature automatic controller; the lower parts of the cold water region and the heating water region are respectively communicated with the inner cavity of a cold and hot water mixed region through two arc openings arranged on the cylindrical surface of the thermostatic valve core; the seal groove at the outer cylindrical surface of the thermostatic valve core is provided with an annular sealing ring which is sealed relative to a shell; the other end of a valve rod of the thermostatic valve core is externally connected to a temperature controlling hand wheel; a water outlet valve is arranged between the cold and hot water mixed region and a water discharging region; and an water outlet is arranged on the water discharging region. The invention has the advantages of convenient use, energy saving and water saving, reasonable structural design, thermostatic water discharging, low cost, long service life and high precision to control temperature, and can save water resources.

The present invention provides a water filtration device, which includes: a filter tank 100 with an upper opening and a partition wall 110 inside, more than one filter plate 200, a filter layer 400, a plurality of air injection pipes p, a maintenance hole 500 and a water storage The filter plate 200 is located above the filter tank 100 and the partition wall 110 to close the filter tank 100; the air injection pipe p is located below the filter plate 200; the maintenance hole 500 is located in the The middle part of the filter plate 200 ; the filter layer 400 is located above the filter plate 200 ; the water storage part is located above the filter layer 400 and the filter plate 200 . The water filtering equipment provided by the present invention avoids stagnant water areas during backwashing, improves the quality of purified water and enhances the trust of consumers. The filter plate is easy to install, can not only improve work efficiency but also shorten construction period and save installation cost.

The invention discloses a central high-density clarification integrated device. The device comprises a steel main pond body, and a coagulation area, a water distributing area, a sludge concentrating area, a mud-water separating area, a clear water area and an ultra-high water level area which are arranged in the pond body, the device is characterized in that the coagulation area comprises a mixed stirring groove arranged in the centre of the pond body and a mixed stirrer in the groove, two flocculation stirring grooves are symmetrically formed in two sides of the mixed stirring groove, a flocculation lifting stirrer is arranged in each flocculation stirring groove, the water distributing area is arranged at outside of the coagulation area and formed by central draft tubes, the sludge concentrating area is arranged below the water distributing area, the concentrating area comprises mechanical grids and a dredge tube, each mechanical grid is used for scraping settled sludge to a mud groove, and the mud is discharged from the dredge tube or partial mud refluxes to a clarification pond, the mud-water separating area is arranged above the water distributing area, and comprises inclined tubes and a filler fixing bracket, the clear water area is arranged above the mud-water separating area, and provided with perforating water collecting grooves, and the ultra-high water level area is arranged above the clear water area. The device disclosed by the invention is high in surface load of operated hydraulic powder, good in clarification effect and small in occupying space.

The invention relates to an automatic backwashing biological filtering pond, which comprises a filtering water tank and is characterized in that: a supporting net is arranged in the filtering water tank; a water flowing seam is reserved between the supporting net and the filtering water tank; a partition plate is arranged in the middle of the filtering water tank; water flowing holes for connecting two ends of the partition plate are formed on the upper side part of the partition plate; both sides of the partition plate are respectively provided with a water inlet end and a water outlet end; a pressurized-water baffle plate is arranged in the middle of the water inlet end; the pressurized-water baffle plate divides the water inlet end into a pressurized-water area and an inverted filter area; the bottom of the pressurized-water area is communicated with the bottom of the inverted filter area through the water flowing seam; a clear water baffle plate is arranged in the middle of the water outlet end; the clear water baffle plate divides the water outlet end into a positive filter area and a clear water area; the bottom of positive filter area is communicated with the bottom of the clear water area through the water flowing seam; a backwashing device is arranged between the clear water area and the pressurized-water area; the backwashing device comprises a backwashing pump arranged in the pressurized-water area; the backwashing pump is communicated with the clear water area through a backwashing pipeline; and a filter is arranged on the backwashing pipeline.

A Fenton reactor, including a body. The body includes: from the bottom up, a sewage introduction zone, a solid acid reaction zone, tubular ceramic membranes, and a water generation zone. A water feed pump, a first chemical feed pump, and a second chemical feed pump are disposed below the body. The outlets of the water feed pump, the first chemical feed pump, and the second chemical feed pump communicate with the water inlet of the body. The water feed pump, the first chemical feed pump, and the second chemical feed pump are provided with flow meters, respectively. The solid acid reaction zone is disposed above the sewage introduction zone, and the tubular ceramic membranes are disposed in the center of the solid acid reaction zone and separate the solid acid reaction zone to form a cavity. The water generation zone is disposed above the solid acid reaction zone.

The invention belongs to sewage treatment equipment, and specifically relates to an improved backwashing device for a biofilter and an application of the backwashing device in backwashing of the biofilter. The backwashing device comprises the biofilter which is provided with a buffer water-distribution zone, a filtering plate, a supporting layer, a filtering material layer and a clear water zone,wherein the input ends of a backwashing air inlet pipeline, a water inlet pipeline and a backwashing water inlet pipeline are separately connected with the buffer water distribution zone; the backwashing water outlet located in the clear water zone is connected with a water discharge pipeline; a turbidity detector is arranged in the clear water zone; the turbidity detector and pumping units and control valves arranged in an air inlet pipeline, the backwashing air inlet pipeline, the water inlet pipeline, the water discharge pipeline, the backwashing water inlet pipeline and a backwashing waterdischarge pipeline are electrically connected with a control device; the backwashing water outlet of the biofilter is provided with a filtering net; a water inlet pressure sensor is arranged on the water inlet pipeline; and the signal output end of the water inlet pressure sensor is connected with the control device. The improved backwashing device provided by the invention effectively solves theproblem of unstable backwashing effect in the prior art, and has the advantages of significantly-reduced energy consumption, small equipment and civil engineering investment, etc.

The invention discloses an ecological purification ditch that integrates sewage transportation, purification and reuse, and consists of four parts connected in sequence, a water inlet area, a purification area, a water collection reuse well, and a water outlet area. Sewage enters the water inlet area of ​​the purification ditch, and after uniform water distribution, enters the purification area where the height of the bottom of the multi-stage canal gradually decreases. The oxygenation is strengthened through multi-stage water drops, and water collection and reuse wells are set between the adjacent purification areas of each level. The purification area is equipped with gravel fillers of different grades, and plants are planted, and the water outlet area and drainage pipes are set at the end to discharge the treated sewage into nearby water bodies. This ecological purification ditch is used for rural sewage transportation. It integrates the three functions of sewage transportation, treatment and reuse. It adopts biological-physical-chemical-plant synergistic purification and natural falling water enhanced oxygenation technology, which has high treatment efficiency and low energy consumption. , less land occupation, convenient management, flexible layout, good landscape effect and so on.

The invention relates to a water seal deodorant floor drain with a float ball. The water seal deodorant floor drain comprises a floor drain body, a floor drain cover, a floor drain inner cover, a water storage column, a water outlet and the float ball, wherein the floor drain cover covers the floor drain body, the water storage column is arranged in the floor drain body and forms a water storage area together with the floor drain cover, the water outlet is formed above the water storage column, and the float ball is put at the water outlet. According to the water seal deodorant floor drain, double seals of the water outlet are realized by utilizing the float ball, so that the deodorant effect is good; the water storage column is lowered, so that the flow velocity is higher than that of an ordinary floor drain, and water can be quickly drained.

The invention discloses an antifouling method for dredged mud in construction of water dredging engineering. The method comprises the following steps: (1) sectionally processing colored strip units, wherein positioning anchor rods are arranged on each section of colored strip at intervals, two adjacent positioning anchor rods are respectively arranged on two sides of each colored strip, the bottom ends of the colored strips are tightly fastened and connected with the positioning anchor rods, the top ends of the colored strips are loosely connected with the positioning anchor rods, and floating devices are arranged between the top ends of the colored strips at intervals; (2) inserting the positioning anchor rods into mud at the position which is 200-300m far away from the opening of a mud discharge pipe, so that the plurality of colored strip units are overlapped in a staggered manner, so as to form a fence of a mud-dumping area, and the overlapping length of two adjacent colored strip units is 2-4m. The antifouling method disclosed by the invention is convenient to operate, the labor force is reduced, the top ends of the colored strips can automatically go up and down along with the water level change, the requirements can be met by once placement, the impact force of slurry can be effectively reduced, the slurry is prevented from overflowing, secondary pollution of surrounding water is prevented, and the pollution problem on a water district is not generated.

The invention discloses composite circular biochemical film reclaimed water integral treatment equipment and process, relating to water treatment equipment and process. The composite circular biochemical film reclaimed water integral treatment equipment comprises a biochemical zone, a film separation zone, a reclaimed water zone and an equipment zone, wherein the biochemical zone and the film separation zone are formed in the same biochemical reactor; an aerobiotic isolation barrel which is open on the top and at the bottom is arranged in the biochemical zone through a bracket; a biological filler is filled into the aerobiotic isolation barrel; an aeration device is arranged at the bottom of the aerobiotic isolation barrel; the bottoms of anaerobic zones on both sides of the aerobic zone of the biochemical zone are provided with water distribution propelling devices; the water inlet of each water distribution propelling device is connected with a sewage inlet; the film separation zone is provided with a film separation device and an air lifting pump through a bracket; the equipment zone is formed above the biochemical reactor; the equipment zone is provided with a self-priming pump, a blower, a power distribution control cabinet and a reclaimed water tank. The composite circular biochemical film reclaimed water integral treatment equipment has the advantages of simple structure, small size, low manufacturing cost, low running cost, good treatment effect and no production of sludge.

The invention discloses a suspension filtration system convenient for sludge discharge. The suspension filtration system comprises a water filtering tank communicating with a raw water channel and a backwashing system communicating with the water filtering tank, wherein a lower water distribution crown plate and an upper filter plate in the water filtering tank divide the water filtering tank intoa lower water distribution area, a middle filter area and an upper clear water storage area, and the middle filter area is filled with a filter material; the water filtering tank is of a cylindricalstructure; the lower portion of the water filtering tank is of a frustum-shaped structure obliquely extending from the bottom of the cylindrical structure to the center line of the cylindrical structure; and the bottom wall of the water filtering tank is provided with a water inlet matched with a water supply pipe of the raw water channel and a water outlet matched with the backwashing system. Thesuspension filtration system has the advantages that structure is ingenious; water distribution is uniform; the problem that the thickness difference of the filter material is large due to non-uniform water distribution is effectively avoided, the thickness uniformity of the filter material is ensured, and filtering effect can be ensured; and sludge can be discharged while backwashing is performed, and silt at the bottom does not need to be specially cleaned, so time is saved, clean water is saved, and filtering efficiency is further improved.

The invention discloses an electric mop cleaning basin characterized by comprising a water storage basin, a cleaning platform arranged on the water storage basin in a folding mode and a water feedingmechanism arranged on the cleaning platform. The water storage basin is internally divided into a sewage area and a clear water area through a filtering part; correspondingly, a squeezing area and a water feeding area are respectively arranged at parts, above the sewage area and the clear water area, of the cleaning platform. The water feeding mechanism is mounted in the water feeding area of thecleaning platform; the water feeding mechanism can be driven by rotary mop cloth of an electric mop to rotate to achieve water feeding, dehydration structures for cleaning and squeezing the mop are distributed in the squeezing area of the cleaning platform, a water discharging hole is formed in the squeezing area of the cleaning platform, and a water outlet is formed in the position, correspondingto the water feeding mechanism, of the water feeding area of the cleaning platform. The electric mop cleaning basin is simple and reasonable in structure, a mop can be conveniently cleaned, and meanwhile, the electric mop cleaning basin has good squeezing and dewatering functions; clear water and sewage can be isolated, so that the water is recycled, and the cost is greatly saved.

The invention provides a water impounding and purifying device and an application method thereof. The water impounding and purifying device is arranged in the cross section direction of a riverway; an upstream side and a backwater side of the water impounding and purifying device allow water flows in the riverway to pass through; the water impounding and purifying device comprises a water impounding and purifying dam; the main body of the water impounding and purifying dam is of a hollow frame structure; the frame structure is filled with water purifying filler; two lateral sides of the frame structure are a first water flow surface and a second water flow surface; the first water flow surface comprises a first water impounding area covered with a first baffle board and a first water flowing area not covered with the first baffle board; the second water flow surface comprises a second water impounding area covered with a second baffle board and a second water flowing area not covered with the second baffle board; a waterstop bag is connected with the bottom surface of the water impounding and purifying dam; a dam body rotary shaft is connected with the water impounding and purifying dam; a driving mechanism is connected with the dam body rotary shaft; an elevator mechanism bears the water impounding and purifying dam. The water impounding and purifying device can be set into a purifying mode, an updating mode or a flood mode.

The invention discloses a rotating sand settling device and technology. The device comprises a sand settling tank, wherein the sand settling tank comprises a lower inverted-cone-shaped sand settling area and an upper cylindrical water inlet and outlet area, wherein a water inlet, a water outlet and a flow guiding device are arranged in the water inlet and outlet area; a polluted sand outlet is arranged at the bottom of the sand settling area; water flowing in from the water inlet is guided to the inner wall of the sand settling area by the flow guiding device; a sand washer and stirring blades are further arranged in the sand settling tank; the stirring blades are arranged in the middle of the sand settling tank and between the sand settling area and the water inlet and outlet area; the sand washer comprises a sand suction and discharge pipe, a sand washing tank and a sand washing sewage pipeline; the sand washing tank comprises a lower sand washing area and an upper buffer area; a sand inlet and outlet port is formed in the bottom of the sand washing area of the sand washing tank. With the device and the technology, the water inlet speed can be increased, the treating efficiency of the sand settling tank for sand with the grain size ranging from 25 mu m to 35 mu m can be improved while the separation efficiency of the sand and organic matter can be increased, the treating efficiency can be up to 90%, and the investment and the running cost are saved.

The invention relates to the field of geotechnical engineering, in particular to a water curtain drilling optimization setting method based on dynamic evaluation of water-rich characteristics of surrounding rock. The method includes the following steps that (1), according to the geological conditions of a reservoir area, it is determined that a water curtain hole is a horizontal water curtain holeor a vertical water curtain hole, and a water curtain roadway is designed; (2), a transient electromagnetic test is performed on the water curtain design plane after construction of the water curtainroadway is completed, a water-rich zone and a water-poor zone are found, water curtain holes with the hole spacing being14-20m are arranged in the water-rich zone, and water curtain holes with the hole spacing being 5-10m are arranged in the water-poor zone; and (3), a water curtain test is performed on the water curtain holes, and reperforating is carried out according to the test result. The water-rich zone and the water-poor zone in a geological zone are considered in the water curtain drilling optimization setting method, the distances of the water curtain holes are designed separately, the best water sealing effect can be achieved, and the water curtain drilling optimization setting method is relatively simple to operate.

The invention provides a water spraying mop cleaning tool, which comprises a mop and a mop bucket, the mop bucket comprises a water storage area and a water squeezing area, the water storage area is provided with a water pumping device, the water pumping device comprises a pump shell and a pump core, a first surface of the pump shell is provided with a water spraying opening, the pump core is provided with a water inlet channel and a second surface, a water pumping chamber with the variable volume is formed between the first face and the second face, the pump core reciprocates in the water pumping chamber to enable water in the water storage area to be sprayed out of the water spraying opening, the pump core is provided with a water inlet channel and a movable plug, when the pump core moves in the first direction, the movable plug opens the water inlet channel, and when the pump core moves in the second direction, the movable plug opens the water outlet channel. When the pump core moves in the first direction, water in the water storage area enters the water pumping chamber, when the pump core moves in the second direction, the movable plug blocks the water inlet channel, and water in the water pumping chamber is sprayed out of the water spraying opening under pushing and pressing of the pump core. The mop cleaning tool has the advantages that water for cleaning the mop is clean water, and the cleaning effect is improved.

A biological treatment apparatus of high-concentration organic matter and ammonia nitrogen wastewater is characterized in that the apparatus comprises a reaction container, the internal of the reaction container is divided into a high-efficiency anaerobic chamber in the middle, a short-cut nitrification chamber arranged around the high-efficiency anaerobic chamber and an anaerobic ammoxidation chamber arranged around the short-cut nitrification chamber by separator plates, the high-efficiency anaerobic chamber is sequentially provided with a first water distribution zone, a first reaction zone, a three-phase separation zone and a first water outlet zone from bottom to top, and the first reaction zone is provided with anaerobic granular sludge; the short-cut nitrification chamber is sequentially provided with a second water inlet zone, a second reaction zone and a second water outlet zone from top to bottom, the second reaction zone is provided with a biological filler, the second water outlet zone is provided with an aeration device, and the second water inlet zone communicates with the first water outlet zone; and the anaerobic ammoxidation chamber is sequentially provided with a third water inlet zone, a third reaction zone and a third water outlet zone from bottom to top, the third reaction zone is sequentially provided with anaerobic ammoxidation granular sludge and an anaerobic ammoxidation biological filler from bottom to top, and the third water inlet zone communicates with the second water outlet zone.

The coagulation and clarification integrated system comprises a coagulation tank and a flocculation tank, a water distribution area is connected with the coagulation tank, and the bottom of the coagulation tank is connected with the flocculation tank; the flocculation basin is connected with the inclined plate sedimentation basin; a lateral flow inclined plate is arranged in the inclined plate sedimentation tank, a retention wall is arranged above the lateral flow inclined plate, and an upward flow inclined plate is arranged on one side of the retention wall; and the compressed air system is connected with the coagulation tank and the flocculation tank. The device is suitable for high-hardness circulating water drainage water or mine drainage water, can effectively reduce pollution and blockage of dense medium particles to the clarification tank, greatly improves the utilization efficiency of the dense medium particles, maintains the suspension concentration of the dense medium particles in the reactor, further can ensure the effluent quality, improves the maximum treatment capacity of equipment, and reduces the production cost. And the anti-fluctuation capability of the system under the working conditions of incoming water quantity fluctuation and frequent starting and stopping is enhanced, and good economic benefits are achieved.

The invention provides an integrated device for biological treatment of organic sewage containing COD and nitrogen through an A / O tower. The integrated device comprises a cylinder; a water distribution zone, a filtering zone, a three-phase contact aerobic zone, a nitrification liquid reflux discharge zone and an anoxic zone are sequentially arranged in the cylinder body from top to bottom; the three-phase contact aerobic zone is a normal-pressure high-oxygen biological membrane filler zone in a non-water-accumulation zone; the sewage inlet is formed in the anoxic zone; and a water outlet of the anoxic zone is communicated with a water inlet of the water distribution zone. The device integrates water distribution, filtration, aerobic treatment and anoxic treatment, and the occupied area issaved. The device is high in pollutant removal load per unit volume. The aerobic zone can cooperatively treat odor generated in the anoxic zone; and the removal rate of COD, ammonia nitrogen and totalnitrogen batteries is relatively high.

The invention belongs to sewage treatment device, in particular to waste water anaerobe treatment device with principal character of sectional water inlet operation. An anaerobic reaction chamber surrounds the main part of a reactor, the middle of the main part of the reactor is provided with a denitrification dephosphorization zone, the bottom is provided with a sludge settling zone which is externally connected with a sludge outlet pipe; the top is provided with an overflow groove which is externally connected with a water outlet pipe; the anaerobic reaction chamber is divided into a plurality of anaerobic reaction chambers by baffles, baffle plate positioned between two adjacent baffles divide each chamber into a lower water district and an upper water district, the top of the lower water district is provided with a water inlet pipe, the bottom of the upper water district is thrown in granular anaerobic sludge, the top is provided with a sewage sample port; a row of water discharging ports are arranged between the bottom of the anaerobic reaction chamber with the lowest height of the baffle and the sludge settling zone. The invention has the characteristics of very low energy consumption, high load resistance, small amount of excess sludge, good water conservancy mixing condition, easy devices, small floor area, low running cost and the like.

The invention discloses a processing device for cationic dye wastewater and a wastewater processing method of the processing device. The processing device comprises a primary filter grid, an electrolytic cell, a sedimentation tank and active carbon columns, wherein the primary filter grid is arranged at the water inlet of the electrolytic cell; the electrolytic cell is connected with the sedimentation tank; the water outlet of the electrolytic cell is the water inlet of the sedimentation tank; the water outlets of the sedimentation tank are connected with the active carbon columns. The processing method comprises the following steps: filtering the cationic dye wastewater by the primary filter grid for entering into the electrolytic cell, and regulating the pH to be 4.0; exerting voltage on a negative electrode and a positive electrode of the electrolytic cell for generating iron ions; introducing the reacted wastewater into the sedimentation tank, regulating the pH to be 8.0-9.0, and enabling the wastewater to enter into a water distribution area after sediment; introducing the active carbon columns for filtering decolorization, and discharging or recycling the wastewater when the wastewater reaches the standard. After the cationic dye wastewater is processed by the processing device and the processing method, the BOD removal rate can reach above 87%, and the removal rates of COD, chromaticness, SS and total copper can reach above 90%.

The invention discloses a flexible water stop structure. The flexible water stop structure comprises a first flexible water stop curtain wall for intercepting low-temperature water of the dead water zone in front of a reservoir water taking port and a second flexible water stop curtain wall for intercepting low-temperature water of the changing water zone in front of the reservoir water taking port. The first flexible water stop curtain wall is vertically fixed to the dead water zone and is perpendicular to the water flow direction, the bottom of the second flexible water stop curtain wall isconnected with the top of the first flexible water stop curtain wall, and the second flexible water stop curtain wall is located in the changing water zone and inclines towards the back position of the water flow direction relative to the first flexible water stop curtain wall. Accordingly, the first flexible water stop curtain wall intercepts the low-temperature water of the dead water zone, thesecond flexible water stop curtain wall intercepts the low-temperature water of the changing water zone, and a surface-layer high-temperature water body flows through the top of the second flexible water stop curtain wall. Through the zoned design of hanging and suspension structures, the acting force of a floating box and a cable net structure can be reduced, and the problem that due to frequentground dragging of a cable net film under water level changes, the life is short is solved.

The invention discloses a method for improving an artificial wetland sewage treatment performance by using titanium-containing blast furnace slags. An artificial wetland sewage treatment system adopts a horizontal subsurface flow artificial wetland mode, and comprises a soil layer, a substrate layer, wetland plants and a water distribution system, wherein the soil layer is mixed with titanium-containing blast furnace slag powder, and titanium-containing blast furnace slag fragments for photo-catalysis are embedded into the surface of the soil layer; a material of the substrate layer is the titanium-containing blast furnace slags; the water distribution system comprises crushed stone water distribution areas, crushed stone water collection areas and a water collection pipe; the crushed stone water distribution areas and the crushed stone water collection areas are respectively arranged on two sides of the soil layer and the substrate layer; and the water collection pipe is arranged on the crushed stone water collection area. The method disclosed by the invention has the advantages that (1) the method is simple in process and easy in implementation; (2) the method is sufficient in raw material and low in price, and has a special photo-catalytic effect; (3) the method can be used for reasonably and effectively solving the problems of valuable resource waste and environmental pollution caused by stacked titanium-containing blast furnace slags and extensive applications.