39results about How to "Reduce short flow" patented technology

The invention discloses a spirally wound electrochemical water treatment reactor. The spirally wound electrochemical water treatment reactor comprises a vertically-arranged long-barrel-shaped shell; the interior of the shell is reaction space; the shell is provided with a water inlet and a water outlet connected with the reaction space; an electrocatalytic oxidation assembly is arranged in the reaction space in the shell and divides the reaction space located between the water inlet and the water outlet; the electrocatalytic oxidation assembly is formed by compounding and spiral winding of a positive electrode layer, a positive / negative electrode insulating layer, a negative electrode layer and a supporting layer; the positive electrode layer and the negative electrode layer are both of a net structure; and the distance between the negative electrode layer and the positive electrode layer is in a range of effective distances allowing an electrocatalysis reaction to occur between the negative electrode layer and the positive electrode layer. The structure of the reactor provided by the invention is beneficial for saving space, enlarging a reaction area, increasing gas-liquid polyphase mass transfer efficiency and realizing high-efficiency, long-acting and low-consumption treatment of pollutants in water.

The artificial wetland effluent collector as one effluent collector for sewage treating artificial wetland includes two parts, a buffering gravel region and a water collecting groove. The buffering gravel region has a perforated water distributing wall for controlling water flow from the wetland and ensuring homogeneous distribution of the inflow, and a flute-shaped collecting pipe in the effluent side for collecting water. The flute-shaped collecting pipe comprises several flute-shaped pipes with valve and water collecting unit. The present invention can ensure the pseudo-parallel flow state of sewage in the wetland.

The invention discloses a large three-lattice integrated geographical septic tank and a making method thereof. The large three-lattice integrated geographical septic tank comprises a tank body, a feces inlet pipe, a feces outlet pipe and a check hole, wherein the tank body comprises an upper half tank body and a lower half tank body which are abutted together, and a sealing rubber mat is arranged at a combined part of the upper half tank body and the lower half tank body; the tank body is internally provided with a two-lattice support shaped like a Chinese character 'Jing' and a partition plate, wherein the support shaped like the Chinese character 'Jing' and the partition plate are used for sequentially dividing the inside of the tank body into three cabins which are respectively a first-stage anaerobic chamber, a second-stage anaerobic chamber and a clarifying chamber; the bottom of the first-stage anaerobic chamber is communicated with the bottom of the second-stage anaerobic chamber; the partition plate is provided with holes which are vertically staggered. The large three-lattice integrated geographical septic tank can be used for remarkably improving the compressive strength and has the characteristics of acid and alkaline resistance, corrosion resistance, long service life, no gaps, good integrality, no leakage, no pollution to underground water, no environment pollution, benefit for ecological environment and the like. By using the large three-lattice integrated geographical septic tank, the processes for treating sludge, digestion gas and wastewater at the water outlet end of the septic tank can be separated, so that the interference of an air floating phenomenon to wastewater treatment is avoided.

The invention relates to a method for preparing a cigarette dual-fiber hybrid filter tip by utilizing soybean fibers, and the method comprises the following steps of: disentangling and stretching a soybean fiber bundle, eliminating surface static electricity and reducing curling and winding of the fibers; forming the surface wet soybean fibers and cellulose acetate fibers in a ratio of 4:1 into tows, and evenly mixing the two fibers; transversely stentering the evenly mixed tow, drawing till no obvious lamination, and evenly applying a plasticizer to the surface; fabricating a cigarette filter stick by means of a filter stick forming machine, and then cutting the filter stick into filter tips for wrapping cigarettes. Compared with the prior art, the filter tip prepared by the method provided by the invention is even in voids, and is good in effect of capturing granule-phase and gaseous-phase particles and larger in fiber absorption surface; the soybean fibers adopted in the invention belong to regenerable plant fibers and can be easily and biologically degraded under natural conditions. The soybean fiber-acetate fiber hybrid filter tip can be used for providing a new technical way for cigarette production while keeping the quality of cigarette smoking unchanged and reducing the harm of cigarette smoking.

The invention discloses an oil separation lifting treatment method for restaurant wastewater. The method includes the following steps of firstly, separating sundries out of restaurant wastewater; secondly, achieving oil-water separation through an oil-water separation tank; thirdly, achieving sewage lifting discharge through a sewage lifting box. At least one liquid distribution baffle of a porous structure is additionally arranged at the liquid inlet position of the oil-water separation tank, and the baffles stand in the oil-water separation tank in a perpendicular state or an inclined state so that a fed liquid distribution guide system can be formed. An overflow weir type water sealing device is adopted between the oil-water separation tank and the sewage lifting box. When wastewater enters the oil-water separation tank, it can be ensured that a uniform flow dividing effect and the effect of reducing short flow and turbulent flow of wastewater are achieved, so that flowing dead zones are avoided; it can also be ensured that water layer stability breakage caused when discharged water in the sewage lifting box is too concentrated and forms vortexes in water layers is avoided.

The invention relates to a simple pendulum motion electrode sewage treatment device which comprises a sewage treatment tank, a rotating shaft is rotatably mounted at the upper part of the sewage treatment tank, two ends of the rotating shaft extend out of the sewage treatment tank and are connected with a simple pendulum type magnet magnetic needle assembly, and an electromagnet driving structure is arranged under the end part of the rotating shaft; and the part, positioned in the sewage treatment tank body, of the rotating shaft is connected with an electrode bracket; an electrode group is placed in the electrode bracket. By means of simple pendulum motion of the electrode group and relative immobility of sewage, short flow is reduced, concentration polarization is reduced, formation of dirt on the electrodes is slowed down, the distance between electrode plates is reduced, the organic matter pollution decomposition effect is improved, energy consumption is reduced, electromagnet repulsive force provides swing driving force when the mass block is located at the bottom, and the device has the advantages of simple structure, wide electrode application type, low manufacturing cost, low energy consumption and long service life.

The invention discloses an electrolytic manganese waste water ion exchange treatment system under automatic control in a whole process and adopting an aeration type ion exchange device. The electrolytic manganese waste water ion exchange treatment system is characterized in that a waste water storage tank (4) is respectively connected with lower liquid inlets / outlets of an ion exchange A(1) and an ion exchange B(2), a regenerated liquid preparation tank (3) is respectively connected with upper liquid inlets / outlets of the ion exchange A(1) and the ion exchange B(2), an electrically operated valve is arranged on a pipeline, the electrically operated valve is electrically connected with a PLC (programmable logic controller), and the ion exchange A(1) and the ion exchange B(2) are both full contact aeration ion exchange devices. The electrolytic manganese waste water ion exchange treatment system has the beneficial effects that the PLC controls the program to perform automatic operation in the whole process, automation degree of equipment is improved, and the operating efficiency of the system is improved; two ion exchanges which are arranged in parallel guarantee continuous adsorption of the equipment; the full contact aeration ion exchange devices are adopted to ensure that resin comes into full contact with water to be treated to guarantee full adsorption.

The invention relates to a scattered sewage subsurface infiltration ecological processing system which comprises a plurality of subsurface infiltration regions, wherein an artificial substrate is filled around pipelines inside the subsurface infiltration regions; a water distribution system is arranged between every two subsurface infiltration regions, and comprises a water distribution well, a primary distribution tank and two secondary distribution tanks; water collection pipes are distributed on both sides of each subsurface infiltration region; one end of each water collection pipe penetrates through the tank wall of the subsurface infiltration region and enters the subsurface infiltration region, and the other end is connected with a water collection well; and a plurality of observation wells are arranged in each subsurface infiltration region. On one hand, the invention provides an ecological subsurface infiltration sewage processing system for scattered regions, such as sanatoria, holiday villages, villa areas, suburb apartment type villages and the like, and can meet the environmental protection requirements for scattered sewage processing and recycling; and on the other hand, the system has the advantages of uniform water distribution, low blocking tendency, high load and the like, and can still stably operate in cold seasons.

The invention discloses a floating water inlet folded plate rotary ecological dam and belongs to the fields of ecological engineering, environmental engineering and agricultural non-point source pollution control engineering. The ecological dam is constructed in a rice field drainage channel system and used for intercepting rice field recession, removing nutrient salt such as nitrogen and phosphorus in the recession, preventing the recession from being discharged into natural water, relieving surface water body non-point source pollution load, repairing a channel system ecological system and improving the water quality of farmland recession receiving water. The floating water inlet folded plate rotary ecological dam comprises a first matrix chamber, a second matrix chamber, a third matrixchamber, a fourth matrix chamber, a fifth matrix chamber, a sixth matrix chamber, a seventh matrix chamber, an eighth matrix chamber and a dam body arranged outside the dam. The invention provides a floating water inlet folded plate rotary ecological dam which is applied to a rice field drainage channel system and structurally can achieve automatic upper-layer water taking, improve the hydraulic condition, facilitate matrix replacement and enhance the nitrogen and phosphorus removal capacity.

The invention discloses a spirally wound electrochemical water treatment reactor. The spirally wound electrochemical water treatment reactor comprises a vertically-arranged long-barrel-shaped shell; the interior of the shell is reaction space; the shell is provided with a water inlet and a water outlet connected with the reaction space; an electrocatalytic oxidation assembly is arranged in the reaction space in the shell and divides the reaction space located between the water inlet and the water outlet; the electrocatalytic oxidation assembly is formed by compounding and spiral winding of a positive electrode layer, a positive / negative electrode insulating layer, a negative electrode layer and a supporting layer; the positive electrode layer and the negative electrode layer are both of a net structure; and the distance between the negative electrode layer and the positive electrode layer is in a range of effective distances allowing an electrocatalysis reaction to occur between the negative electrode layer and the positive electrode layer. The structure of the reactor provided by the invention is beneficial for saving space, enlarging a reaction area, increasing gas-liquid polyphase mass transfer efficiency and realizing high-efficiency, long-acting and low-consumption treatment of pollutants in water.

The invention provides a multi-point water inflowing and draining method for a rectangular cultivation pond of stichopus japonicus. The multi-point water inflowing and draining method comprises setting 2-4 water inlets on the short pond walls of the rectangular cultivation pond of the stichopus japonicus, wherein correspondingly, 2-4 water outlets are arranged on opposite pond walls of the short pond walls; the water inlets and the water outlets are symmetrically arranged one by one; inflow and the amout of inflow of the water inlets are controlled by a water inlet gate; drainage and the amount of drainage of the water outlets are controlled by a water outlet gate. The multi-point water inflowing and draining method provided by the invention can effectively reduce the volume of a dead water region inside the pond,can reduce the occurrence of a short-stream phenomenon, and can improve the water quality, the survival rate and the growth speed of the cultivated stichopus japonicus.

The invention relates to a method for preparing a cigarette dual-fiber hybrid filter tip by utilizing soybean fibers, and the method comprises the following steps of: disentangling and stretching a soybean fiber bundle, eliminating surface static electricity and reducing curling and winding of the fibers; forming the surface wet soybean fibers and cellulose acetate fibers in a ratio of 4:1 into tows, and evenly mixing the two fibers; transversely stentering the evenly mixed tow, drawing till no obvious lamination, and evenly applying a plasticizer to the surface; fabricating a cigarette filter stick by means of a filter stick forming machine, and then cutting the filter stick into filter tips for wrapping cigarettes. Compared with the prior art, the filter tip prepared by the method provided by the invention is even in voids, and is good in effect of capturing granule-phase and gaseous-phase particles and larger in fiber absorption surface; the soybean fibers adopted in the invention belong to regenerable plant fibers and can be easily and biologically degraded under natural conditions. The soybean fiber-acetate fiber hybrid filter tip can be used for providing a new technical way for cigarette production while keeping the quality of cigarette smoking unchanged and reducing the harm of cigarette smoking.

The invention belongs to the technical field of sewage treatment or river ecological restoration, and particularly relates to a modular combined constructed wetland. The modular combined constructed wetland comprises a plurality of wetland blocks which are connected in series through water distribution channels, each water distribution channel is connected with a main water distribution channel through a gate valve, and perforated walls are arranged at the joints of the water distribution channels and the wetland blocks. Sewage enters a first water distribution channel through the main water distribution channel after being pretreated, is uniformly distributed to a first wetland block, is collected by a second water distribution channel after being treated, is uniformly distributed to a second wetland block, and similar operations are conducted in turn until the sewage is treated by a fourth wetland block, is collected by a fifth water distribution channel and then is discharged. Under the same constructed wetland area, after the constructed wetland is divided into four same modules to be combined, compared with an original constructed wetland, the maintenance cost is saved by 70% or more, and the short-flow phenomenon is obviously reduced due to the effect of multiple times of water distribution.

The invention discloses a method for oil-separating and lifting treatment of catering wastewater, which comprises the following steps: step 1, separation of impurities in catering wastewater; step 2, using an oil-water separation box to realize oil-water separation; step 3, using a sewage lifting box to realize sewage lifting and discharge . The liquid inlet of the oil-water separation tank is equipped with at least one liquid distribution baffle with a porous structure, and the baffle stands vertically or inclined in the oil-water separation tank to form a liquid inlet distribution guide system. An overflow weir type water sealing device is used between the oil-water separation box and the sewage lifting box. When the waste water of the present invention enters the oil-water separation tank, it can ensure the uniform diversion effect and reduce the short-flow and turbulent flow of the waste water, so as to avoid the formation of flow dead zone; Vortex, destabilizing the water layer.