148results about "Cesspools" patented technology

The invention belongs to the technical field of sewage treatment and comprehensive utilization of water resources, and particularly relates to a reclaimed water reuse and rainwater collection and utilization system in an expressway service area. A sewage treatment, rainwater collection and water-saving irrigation integrated system is constructed, and the MBR process is emphatically applied to treat sewage. The system can effectively remove various pollutants in the sewage, so that the effluent reaches the reclaimed water reuse standard, and the sewage recycling is realized. Meanwhile, rainwater is efficiently collected and utilized, and the water demand of vegetation is accurately met in combination with an intelligent water-saving irrigation technology. The dependence of the service area on fresh water resources is reduced on the whole, the pollution of sewage discharge to the environment is reduced, the water resource management level is improved, remarkable economic, social and environmental benefits are achieved, and an innovative scheme is provided for sustainable utilization of the water resources in the small service area of the expressway.

The utility model discloses a BIM building assembly type sewage pool which is characterized in that first L-shaped blocks and second L-shaped blocks are fixedly arranged at four corners of the top of a bottom plate, L-shaped plates are vertically and movably arranged between the four first L-shaped blocks and the four second L-shaped blocks, and side plates are vertically and movably arranged between every two of the four L-shaped plates; four L-shaped plates are respectively placed among four first L-shaped blocks and four second L-shaped blocks, four side plates are downwards inserted between every two of the four L-shaped plates, so that a sewage pool is formed by the four side plates and the four L-shaped plates, a movable plate is pushed to drive a movable rod to be clamped into a first fixed plate and a second fixed plate, and the movable plate is pushed to drive the movable rod to be clamped into the first fixed plate and the second fixed plate. The four side plates and the four L-shaped plates are further fixed to the bottom plate, so that the assembly type sewage pool is conveniently and rapidly assembled, the assembly process is simple and convenient, no bolts or other parts are needed for fixation, meanwhile, subsequent disassembly of the assembly type sewage pool is facilitated, and time and labor are saved.

A method of operating a septic system to facilitate maintenance and avoid damage to property and / or the environment. A septic system that collects and monitors data to provide information to a user about the nature of a problem condition, or to warn a user of potential problems in advance, or to recommend courses of action to avoid costly repairs, or property damage, or damage to the environment.

The invention relates to an expressway service area water resource comprehensive utilization system and method, and belongs to the technical field of rainwater and sewage collection, treatment and utilization. The system structurally comprises a rainwater collection and treatment system and a sewage collection and treatment system, the rainwater collection and treatment system comprises a discarding device, an underground water storage tank, a mechanical grid I, a vertical flow sedimentation tank, a filter, a disinfection tank I and a clean water tank which are communicated in sequence, and further comprises a sludge tank communicated with the vertical flow sedimentation tank; the sewage collecting and treating system comprises a septic tank, a mechanical grating II, a sewage regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank, a radial-flow secondary sedimentation tank, an MBR reaction tank, a disinfection tank II and a clean water tank which are communicated in sequence, and further comprises a sludge tank which is communicated with the radial-flow secondary sedimentation tank and the MBR reaction tank respectively. The system effectively collects and treats rainwater and sewage, is used for car washing, toilet flushing, irrigation and the like in a service area, and has certain environmental benefits, social benefits and economic benefits.

The utility model relates to a high-sealing anti-corrosion reverse hanging membrane structure, which belongs to the technical field of reverse hanging membrane structures and comprises no less than two gantry steel structures, and anti-corrosion reverse hanging membrane bodies are fixed in the no less than two gantry steel structures through fixing belts. According to the high-sealing anti-corrosion reverse hanging membrane structure, through the arrangement of the telescopic assembly, the at least two gantry steel structures can be compressed and folded, an open space is vacated to facilitate later cleaning of the interior of a sewage pool, and the at least two gantry steel structures are located on the outer side of the sewage pool; two hand wheels on the right side can be twisted to drive two ground piles to rotate in two connecting blocks and move upwards to move out of the interior of the foundation, at the moment, at least two telescopic assemblies are compressed and shortened, at least two gantry steel structures move leftwards, and at the moment, the telescopic assemblies are compressed and shortened; then, an open space is formed on the outer side of the right side of the sewage pool, so that the interior of the sewage pool is cleaned.

The invention relates to the technical field of concrete pouring template reinforcement, and discloses a concrete pouring template reinforcement device for a sewage treatment inclined tube sedimentation tank, which comprises a pouring template, a soft rubber gasket and a sliding block are tightly attached to the inner surface of the pouring template, and cement at a mounting hole can be prevented from being squeezed and seeping out during pouring, so that the concrete pouring template reinforcement device is convenient to use. The circulating threaded rod can rotate along with rotation of the fixing screw when the fixing screw is installed, the circulating threaded rod rotates on the inner wall of the limiting groove to extrude the inner wall of the fixing screw, the circulating threaded rod only rotates and does not extrude the inner wall of the fixing screw when rotating by a certain angle in the reverse direction, and the conical end of the circulating threaded rod is wrapped with soft rubber. The binding force with concrete is weak, the circulating threaded rod is easy to detach, and the left recess is filled with a waterproof material in a mixed manner, so that the wall surface is prevented from being damaged by knocking the wall surface, vibration is generated, a gap between the fixing screw and the concrete is enlarged, the seepage-proofing time is shortened, and the concrete is prevented from being extruded to permeate from a mounting hole.

The utility model provides an automatic drainage device controlled by a programmable logic controller (PLC), and relates to the field of PLCs. The PLC-controlled automatic drainage device comprises a sewage pool and a main body placing frame, one side of the main body placing frame is fixedly connected with a position control shell, the inner wall of the position control shell is slidably connected with a threaded cylinder, the threaded cylinder is fixedly connected with a displacement sensor through an extension plate, and the inner wall of the threaded cylinder is in threaded connection with the outer circumferential surface of a first one-way lead screw; one end of the first one-way lead screw is fixedly connected with an external rotating disc, and the first one-way lead screw is rotationally connected to the inner wall of the position control shell. According to the automatic drainage device controlled by the PLC, through the arrangement of the sewage pool, the main body placement frame, the position control shell, the threaded cylinder, the extension plate, a displacement sensor, a one-way screw rod I, an external rotating disc, a position control rod, a displacement disc, a guide single rod, a floating ball and a position control block, drainage operation can be effectively and automatically carried out according to the real-time water level, so that it is guaranteed that the overflow phenomenon of the sewage pool does not occur; and the safety effect is enhanced.

The utility model belongs to the technical field of water flushing type energy-saving toilets, and particularly relates to a water flushing type energy-saving toilet which comprises a U-shaped base, a fixed box fixedly installed on the top of the U-shaped base, a step installed on the front side of the U-shaped base in an inserted mode, a pedestal pan device fixedly installed in the fixed box, and a water storage tank fixedly installed on the pedestal pan device. A first separation barrel and a second separation barrel are fixedly installed in the U-shaped base, a first filter plate is fixedly installed in the first separation barrel, and a first discharge pipe is fixedly installed on the portion, located on the top of the first filter plate, of the first separation barrel. According to the device, solid is effectively prevented from entering the feeding end of the second water pump, the blocking condition is prevented, meanwhile, when the solid in the first separation barrel and the solid in the second separation barrel are cleaned, the solid can be discharged and collected only by opening valves on a first discharging pipe, a second discharging pipe and a third discharging pipe, and using is more convenient.

The utility model relates to the technical field of sewage treatment, in particular to a harmful gas leakage prevention top cover which comprises a cover plate, upper supporting plates arranged at equal angles are fixedly connected to the upper surface of the cover plate, inserting grooves arranged at equal intervals are formed in the outer surface of the cover plate, and inserting plates arranged at equal intervals are fixedly connected to the outer surface of the cover plate. The upper surface of the cover plate is provided with clamping hooks arranged at equal intervals, the upper surface of each insertion plate is provided with a clamping groove, and the two sides of each clamping hook are each provided with a supporting piece. According to the top cover, the inserting plate, the clamping hook and other components are arranged, and through the mutual matching relation between the inserting plate and the clamping hook, when the inserting plate enters the inserting groove, the clamping hook can fix the inserting plate through the clamping groove, and then the effect that the sealing performance of the top cover is improved through the inserting plate and the clamping hook is achieved; the defects that an existing technical scheme is lack of a fixing mechanism, and the top covers are prone to deviation are overcome.

The utility model relates to the technical field of deodorization equipment of a sewage treatment plant, and discloses a reverse hanging membrane sewage pool protection device, which comprises a steel frame keel arranged at an opening at the upper end of a sewage pool; the PVDF membrane material is arranged on the inner side of the steel frame keel through the membrane material fixing mechanism; the membrane material fixing mechanism is arranged on the steel frame keel; according to the structure, through the arrangement of the steel frame keel, the PVDF membrane material and the membrane material fixing mechanism, the structure can be stably fixed to the top of the sewage pool to seal the top of the sewage pool, meanwhile, the weight of the top structure of the sewage pool is reduced, the inner side of the steel frame keel can be conveniently covered with the PVDF membrane material through the membrane material fixing mechanism, and the light transmission of the sewage pool can be effectively guaranteed through the arrangement of the PVDF membrane material; the sealing cover for the sewage pool has the advantages of being small in self weight, convenient to construct, capable of effectively controlling the aerobic and anaerobic environments in the sewage pool and the like, and solves the problems that an existing sealing cover for the sewage pool is large in self weight, inconvenient to construct, incapable of effectively controlling the aerobic and anaerobic environments in the sewage pool and the like.

The utility model discloses a kind of siphon drainage devices of sewage pool, including special-shaped U-shaped siphon, fixed support and air extraction device, special-shaped U-shaped siphon includes main channel and auxiliary channel, main channel includes mutually connected water inlet section, connecting section and water outlet section, connecting section connects water inlet section and water outlet section, water inlet section is fixed on the inner wall of sewage pool using fixed support, auxiliary channel connects connecting section, air extraction device includes air extraction mechanism and check valve, air extraction mechanism connects auxiliary channel, for air extraction to auxiliary channel, check valve also connects auxiliary channel, for making auxiliary channel one-way conduction, check valve includes cavity, baffle, fixed nut and air core, fixed nut is located at the bottom of cavity, for connecting auxiliary channel and cavity, air core is located at the top of cavity, baffle is connected below air core, and baffle is equipped with aperture. Compared with prior art, the utility model can realize the efficient, zero-energy consumption discharge of sewage.

The utility model discloses an assembly type steel structure pool self-tightening type side column node structure which comprises wallboard units, a steel column and a rubber sealing gasket, each wallboard unit comprises a wallboard surface and a wallboard side column, the steel column is correspondingly arranged between the two wallboard units, the cross section of the steel column is a trapezoid section with one large end and one small end, and the rubber sealing gasket is arranged between the wallboard surface and the wallboard side column. The small end of the wallboard side column is arranged on the upstream side close to the pool, the side, close to the steel column, of the wallboard side column is an inclined face matched with the side face of the steel column, a rubber sealing gasket is arranged between the wallboard side column and the steel column, and the wallboard side column, the rubber sealing gasket and the steel column are fixedly connected through high-strength bolts and achieve abutted seam sealing. And the wallboard units and the steel columns are compacted and reinforced under the action of water pressure in the water pool. The wall plate side column node is simple in structure and ingenious in design, the steel column and the wall plate side column section are optimally designed, the reinforcing and sealing effects can be achieved by means of water pressure in a water pool, and the problem of hidden danger of water seepage of the side column node is effectively solved.

The utility model discloses a glass fiber reinforced plastic sealing cover which comprises a plurality of glass fiber reinforced plastic covers, two glass fiber reinforced plastic plates and two bottom plates, arc-shaped strips are fixedly connected to the two sides of the outer portions of the glass fiber reinforced plastic covers, and the two glass fiber reinforced plastic plates are installed on the two sides of the glass fiber reinforced plastic covers respectively. The outsides of every two adjacent arc-shaped strips and the outsides of the arc-shaped strips and the glass steel plates are sleeved with covers, first sealing gaskets are fixedly connected to the interiors of the covers, the covers are connected with the arc-shaped strips and the glass steel plates through a plurality of first screws, connecting plates are fixedly connected to the two bottom ends of the multiple glass steel covers, and through grooves are formed in the connecting plates. Inserting columns are fixedly connected to the positions, corresponding to the through grooves, of the two bottom plates, the inserting columns penetrate to the upper sides of the connecting plates from the interiors of the corresponding through grooves, the connecting plates are fixedly connected with the inserting columns through connecting mechanisms, and a plurality of fixing grooves matched with the first screws are formed in the arc-shaped strips and the glass steel plates correspondingly. And the single glass fiber reinforced plastic cover can be conveniently detached and replaced, and the use practicability is improved.

The application belongs to the technical field of sewage treatment tank, and particularly relates to a modular prefabricated sewage treatment tank. The application comprises a pool main body, the pool main body comprises a plurality of prefabricated concrete module components arranged at intervals along the length direction of the pool main body, two adjacent prefabricated concrete module components are respectively set as a first module component and a second module component, a U-shaped joint seam is formed between the first module component and the second module component, the U-shaped joint seam is composed of a bottom plate joint seam at the bottom of the U-shaped joint seam and side plate joint seams at the two sides of the U-shaped joint seam, the U-shaped joint seam is provided with an elastic joint material filling and solidification structure layer, the first module component and the second module component are connected through a plurality of groups of connecting assemblies arranged at intervals along the length direction of the U-shaped joint seam, each group of connecting assemblies comprises a spherical hinge support, a first connecting rod, a sleeve, a second connecting rod, a ring-shaped limiting piece and an air spring. The application can be conveniently and quickly assembled on site, and meanwhile, the durability of the connecting part of the module component is improved.

The utility model relates to a water circulation energy-saving foundation pit of a solid waste wet processing system. Comprising a foundation pit, and a foundation pit support is arranged in the foundation pit; a clean water tank is arranged on the bottom surface of the foundation pit, a sewage well is dug, a filtering mounting ring is fixedly connected to a wellhead of the sewage well, a filtering piece is detachably connected to the wellhead of the sewage well, and a cleaning device is arranged in the filtering piece; the cleaning device comprises a support structure, and a filter screen cleaning assembly and a sludge cleaning assembly are installed on the support structure. A submersible pump and a water lifting pipeline are arranged in the sewage well, and a water return pipeline is arranged at a water outlet of the water lifting pipeline; a main water outlet pipeline is mounted at a water outlet of the clear water tank, a water supplementing pipeline and a high-pressure water outlet pipeline are mounted at a water outlet of the main water outlet pipeline, and a high-pressure cleaning part is mounted on the high-pressure water outlet pipeline; and a water inlet pipeline is mounted at the water inlet of the clear water tank. According to the utility model, the generated wastewater can be collected in a centralized manner and is filtered, so that the sewage is recycled, water resources are saved, and the environmental awareness is met; meanwhile, filter screen cleaning and filtered matter discharging operation can be conducted regularly, the automation degree is high, and the operation process is simple.

The invention provides a resource circulation type off-network public toilet system based on source separation and biological treatment, which relates to the field of public toilets and comprises a public toilet, a separation unit, a portable maintenance mechanism, a liquid treatment unit, a solid treatment unit, a synchronous mixing mechanism and a wash basin, the public toilet comprises a toilet body, an air draft chimney, a toilet door body and a fixing base. The source separation unit is connected with a public toilet and is used for conveying urine and excrement to the source separation unit; and the source separation unit comprises a micro-water flushing closestool and a portable maintenance mechanism. The urine is subjected to natural fermentation to realize pathogen inactivation and urea is hydrolyzed and decomposed into a liquid fertilizer, and the composting reaction box is mixed with excrement through an additive to form high-quality humus soil, so that the problems that the secondary pollution risk exists due to the fact that most toilets are subjected to chemical treatment or simple landfill, and a scheme of a high-temperature incineration or distillation technology is adopted are solved; the problems of extremely high energy consumption and complicated operation exist.

The utility model belongs to the field of sewage treatment, and discloses an assembled partition plate for a sewage treatment pool, which comprises a partition plate main body formed by sequentially splicing a plurality of sub-plate bodies, one or more flap valves are arranged on the partition plate main body; the partition plate body is provided with at least one communicating pipe communicating the two sides of the partition plate body, and the height difference between an upper end opening and a lower end opening of the communicating pipe is smaller than the pressure-bearing liquid level difference of the partition plate body. The partition plate adopts an assembled structure, is formed by splicing a plurality of sub-plate bodies, and is provided with a flap valve for controlling sewage to flow in one direction and a communicating pipe for preventing the assembled structure from being deformed and collapsed due to front and back liquid level difference, so that safe operation of the assembled partition plate in a sewage pool can be realized; therefore, the assembly efficiency is high, the cost is low and the construction period is short. Meanwhile, the utility model further discloses a sewage treatment pool.

The invention relates to an automatic dredging system and method for a closed pool, and the method comprises the following steps: installing the automatic dredging system for the closed pool, and controlling a mechanical arm to enter a pool body; the laser radar scans the internal environment of the pool body to form in-pool volume space data to be fed back to the upper computer; the upper computer generates an environment model, performs obstacle avoidance and path planning of the mechanical arm in combination with a motion planning algorithm, and sends a flushing instruction and a sludge pumping instruction to pump sludge at the bottom of the tank body; the visual camera feeds back desilting picture data in the pool to the upper computer in real time, and manual control can be assisted; after washing for a certain time, visually judging whether washing is complete or not through a desilting picture in the pool returned by a visual camera, and meanwhile, forming quantitative washing effect evaluation by comparing front and back point cloud data through an upper computer; and after the flushing effect is satisfied, desilting operation is stopped. The method has the beneficial effects that related operators do not need to go into the pool in the whole process; desilting operation can be completed more thoroughly; the mechanical arm is not immersed in the sludge at the bottom of the pool body.

A sanitary pit liner system for collection of human waste in developing countries includes a plurality of curved, interlocking pit liner segments that snap together to form a cylindrical pit liner, a plurality of curved, interlocking dome segments that snap together to form a dome, a gasket, a squat plate and squat pan user interface or a one-piece toilet user interface. A method of installing a sanitary pit liner system is also disclosed.

The invention relates to the technical field of sewage treatment, and discloses a mud storage tank structure which comprises a first baffle, a second baffle, a mud inlet, a mud outlet and a supernatant port, one end of the first baffle is connected to the wall of a mud storage tank in a swing adjusting mode, and the other end of the first baffle inclines towards the bottom of the mud storage tank; the second baffle is vertically arranged at the bottom of the sludge storage tank, and a set distance is formed between the free end of the first baffle and the second baffle; the mud inlet is formed in the pool wall of the mud storage pool and located above the first baffle; the sludge outlet is positioned at the bottom of the tank wall of the sludge storage tank and is positioned below the first baffle plate; the supernate opening is formed in the top of the wall of the sludge storage tank. The sludge dewatering device has the beneficial effects that under the action of the first baffle, new sludge entering from the sludge inlet is prevented from being mixed with thick sludge settled below the first baffle, and the supernatant outlet is formed in the top of the sludge storage tank, so that the total volume of the sludge extracted from the bottom of the sludge storage tank is reduced, and the sludge dewatering efficiency is improved.

The invention provides an in-use sewage pool body leakage repairing agent as well as a preparation method and a construction process thereof, and relates to the technical field of pool body anti-seepage transformation. The sewage pool body leakage repairing agent is prepared from the following raw materials in parts by weight: 30-40 parts of polyurethane resin, 20-30 parts of epoxy resin, 5-10 parts of an isocyanate curing agent, 1-3 parts of polyether modified silicone oil, 3-6 parts of ceramic powder, 1-3 parts of carbon fibers, 0.5-1 part of a silane coupling agent, 2-5 parts of propylene glycol diglycidyl ether, 0.3-0.5 part of an acid and alkali resistant anti-aging agent and 0.3-0.5 part of an anti-ultraviolet agent. By optimizing the component proportion of the leak repairing agent, the leak repairing agent has the characteristic of rapid solidification under a low-temperature condition, and has the effects of high strength, micro-expansion, good compactness and long-term performance; meanwhile, a temporary water storage bag, a temporary pump and a pipeline are adopted, so that the sewage treatment process is not interrupted when the leakage of the sewage pool body is repaired.

The application provides a sewage treatment biochemical reaction tank, and relates to the technical field of sewage treatment, which comprises a biochemical tank, wherein the biochemical tank is communicated with a water distribution tank, a plurality of filter material oxidation units are arranged in the biochemical tank, adjacent filter material oxidation units are communicated, sewage enters from one end of the biochemical tank, sequentially passes through a plurality of adjacent filter material oxidation units, and finally enters a sedimentation tank, the filter material oxidation unit comprises a filter material bin and an oxidation tank, the filter material bin is filled with granular calcium carbonate dephosphorization filter material so as to remove phosphate ions in sewage, an aeration pipe is arranged below the oxidation tank, a plurality of aeration holes are formed in the aeration pipe, a curtain type filler is arranged above the aeration pipe, and the curtain type filler is attached with an aerobic microbial membrane; the filter material bin is arranged adjacent to the oxidation tank, and the oxidation tank is communicated with the filter material bin. The application has the advantages of high dephosphorization and denitrification efficiency and good sewage treatment effect.

The invention discloses a distributed rural sewage septic tank and purification tank coupling treatment system which is characterized in that a feed port of an improved septic tank is connected with a flushing toilet, and a discharge port of the improved septic tank is connected with a feed port of an electrochemical enhanced purification tank; a discharge port of the electrochemical enhanced purification tank is further connected with a kitchen and a bath room, the improved septic tank is connected with the fertilization pipeline system, the electrochemical enhanced purification tank is connected with the watering pipeline system, and ultraviolet disinfection equipment and a three-dimensional electrochemical treatment structure are arranged in the electrochemical enhanced purification tank; the chemical oxygen demand and the biochemical oxygen demand of black water are effectively reduced after the black water is cured in the septic tank for enough time, the black water is mixed with grey water to enter the electrochemical enhanced purification tank and then treated by a biological and electrochemical combined method, and the sewage is disinfected by an electrochemical and ultraviolet disinfection combined mode, so that the effluent reaches the reuse standard.

WATER TREATMENT TANK The invention relates to a water treatment tank (100) intended to be buried in a hole and comprising a tank (101), a bottom (102) closing the tank (101) in the lower part and intended to come against the bottom of the hole, and a plurality of feet (104), where each foot (104), is integral with the bottom (102) of the water treatment tank (100) and arranged outside said bottom (102), where each foot (104) takes the shape of an inverted T with a vertical bar (104a) of which a proximal end is integral with the bottom (102) of the water treatment tank (100) and a horizontal bar (104b) integral with a distal end of the vertical bar (104a). Fig. 1

A connector for use with a riser pipe coupled to a septic tank including a chamber and an access opening to the chamber. The connector includes a body having a cylindrical portion and a flange exterior of the cylindrical portion, and the body is defined by a first section having a first interlock feature on the flange and a second section having a second interlock feature on the flange complementary to the first interlock feature. The first section and the second section are removably attachable to each other via engagement of the first interlock feature and the second interlock feature and cooperatively defining a continuous perimeter. The first section and the second section further cooperatively define a first surface configured to be coupled to the septic tank or the riser pipe.

The utility model discloses a prefabricated reinforced concrete septic tank, which relates to the technical field of septic tanks, and comprises a base, the top surface of the base is in sliding connection with a plurality of first prefabricated blocks, the top surface of each first prefabricated block is provided with a sealing groove, each sealing groove is internally provided with a sealing strip, and the first prefabricated blocks and the second prefabricated blocks are in sliding connection. The top surface of each first precast block is provided with a second precast block in a clamping manner, the bottom surface of each second precast block is provided with a positioning mechanism, and the bottom surface of each second precast block is symmetrically provided with a plurality of limiting blocks. According to the device, the installation precision between the first precast blocks and the second precast blocks is improved, sealing communication between the first precast blocks and sealing connection between the first precast blocks and the second precast blocks can be achieved, sewage can be prevented from leaking from the connecting positions, and the device is simple in combination and suitable for popularization.

The utility model provides a sewage pool contraction steel membrane structure which comprises a contraction guide rail, one side of the top of the contraction guide rail is connected with a movable frame, one end of the contraction guide rail is fixedly connected with a storage frame, and a plurality of middle frames are arranged between the movable frame and the storage frame. Moving blocks are connected to the bottom ends of the moving frame and the middle frames, a telescopic mechanism is arranged between the multiple middle frames, the telescopic mechanism comprises a plurality of telescopic connecting plates, every two telescopic connecting plates form a group, and a rotating shaft is connected to the two telescopic connecting plates. The contraction steel membrane structure of the sewage pool solves the problems that when a contracted cover plate needs to be reused, a worker needs to manually pull the cover plate from the two sides and unfold the cover plate, due to the fact that an existing cover plate is large in size and weight, the worker is inconvenient to pull and unfold the cover plate, time and labor are wasted, and cost is high. And therefore, the problem that a worker cannot unfold and use the contracted rear cover plate conveniently is solved.

The utility model discloses a full-closed deodorization steel structure pool which comprises a pool body and a cover plate laid on the pool body. At least one tie bar is designed, has a preset shape and is mounted on the pool body, and the cover plate is connected with the tie bar; the at least one gas collection port is arranged at the side part of the tie bar, and the gas collection port extends to the cover plate and is communicated with the pool body of the water pool; and the at least one gas collecting pipe is laid in the tie bar and is communicated with the gas collecting port. According to the utility model, the gas collecting port is designed at the side part of the lacing wire, the gas collecting pipe is laid along the lacing wire and is connected with the gas collecting port, so that the odor in the pool body is collected, and meanwhile, the internal space of the lacing wire and the gas collecting pipe are reused to prevent the gas collecting pipe from occupying other working spaces; and meanwhile, the designed gas collecting port can be reduced, and can be matched with a blower to more accurately control the flow of gas.

The invention relates to an anti-seepage and anti-cracking construction method for a sewage treatment pool. The anti-seepage and anti-cracking construction method sequentially comprises the steps of early-stage preparation, foundation pit excavation and base treatment, novel anti-seepage film laying and welding, steel bar binding, formwork erecting and novel fiber reinforced concrete pouring and curing. The impermeable film is modified by blending HDPE / LLDPE-EVA, the thickness is 1.0-2.5 mm, the impermeable film has high toughness, chemical resistance and ultraviolet aging resistance, and a welding seam is subjected to hot air double welding and secondary sealing; the fiber concrete is doped with 0.24% of polypropylene fiber and 1.72% of steel fiber, the water cement ratio is 0.4-0.45, and the crack width is smaller than or equal to 0.1 mm after prolonged stirring, moderate vibration and 7-day precise wet maintenance. By adopting a novel anti-seepage thin film technology and a novel fiber reinforced concrete technology and combining a strict construction process and quality control measures, the problems that the sewage treatment tank is easy to crack and leak during construction are fundamentally solved, the overall stability and durability of the sewage treatment tank structure are enhanced, and the service life of the sewage treatment tank is prolonged. And the influence on surrounding environments such as surrounding soil, water and the like is reduced.

The present invention discloses an anti-siltation double-inverted siphon pipe for rural sewage, which includes a pipe connecting an upstream intake well and a downstream outlet well. The pipe is composed of an outer pipe and an inner pipe. A circle of clamping grooves are respectively formed on the outer walls of the upstream intake well and the downstream outlet well around the outside of the outer pipe. Both ends of the inner pipe are fixedly connected with rotating mechanisms respectively. The rotating mechanism includes a ring, and the inner side of the ring is fixedly connected with the inner wall of the inner pipe through a fixing member. A number of arms extend out from the outer side of the ring, and rolling mechanisms are arranged at the ends of the arms far away from the ring. The rolling mechanism includes rollers that are in rolling connection with the clamping grooves. The rollers are rotatably connected with a roller frame through roller shafts, and the roller frame is fixedly connected with the arms. With the cooperation of the rotating mechanism and the rolling mechanism, the driving device can drive the inner pipe to rotate around the axis at a certain speed, solving the problem of easy siltation of the inverted siphon pipe for rural sewage under the conditions of avoiding difficult operation and maintenance, unable to reduce the pipe diameter, and unable to increase the pipe slope.