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146results about "Landfill technologies" patented technology

Semi-enclosed valley type hazardous waste flexible landfill

The application discloses a semi-closed valley type dangerous waste flexible landfill site, a base, a slope and a garbage dam are enclosed to form a semi-closed valley type landfill site area, and the landfill site further comprises a roof, middle columns, side columns, an anti-seepage system, a leachate collection and drainage system and a groundwater drainage system; the roof is used for stopping rain on the upper part of the landfill site area; the middle columns are located in the landfill site area and used for supporting the roof; the side columns are located at the periphery of the landfill site and form an enclosure structure; the anti-seepage system is divided into a base anti-seepage system used for base anti-seepage, a slope anti-seepage system used for slope anti-seepage and a middle column anti-seepage system used for middle column anti-seepage; the leachate collection and drainage system is inserted in the base anti-seepage system and used for collecting and draining leachate; and the groundwater drainage system is located below the base anti-seepage system and used for draining groundwater. The application can greatly reduce leachate generation and effectively solve the problems of high leachate treatment operation cost and environmental pollution.
Owner:POWERCHINA HUADONG ENG CORP LTD

Isolation layer for reclamation of heavy metal compound polluted soil

The utility model discloses an isolating layer for heavy metal combined pollution soil reclamation, which comprises a foundation pit, and an isolating mechanism is arranged in the foundation pit. The isolation mechanism comprises a base, a fixing frame, a threaded groove, an isolation cover, a top cover, an inserting plate, an inserting groove, a rotary knob, a first single-groove belt wheel, a first belt, a second belt, a second single-groove belt wheel, a first rotating shaft, a second rotating shaft, a threaded rod, a groove, a cavity and a double-groove belt wheel. The four inserting plates are located at the front end and the rear end of the two sides of the outer surface of the upper end of the base correspondingly, the two fixing frames are located on the two sides of the middle of the outer surface of the upper end of the base correspondingly, and the threaded grooves are formed in the outer surfaces of the upper ends of the fixing frames. According to the isolation layer for heavy metal combined pollution soil reclamation, the isolation cover and the base can be rapidly assembled and disassembled, operation is easy, isolation can be conveniently conducted through the isolation cover, damage to new soil caused by external personnel or birds and beasts is reduced, and better use prospects are brought.
Owner:LIAONING ENVIRONMENTAL PLANNING INST CO LTD

Treatment method and treatment system for incineration residue

The invention relates to a disposal method for incineration residues and a disposal system for incineration residues, and provides a technology capable of promoting decomposition of incineration residue components by microorganisms and shortening the stabilization period in the case of landfill and final disposal of incineration residues. The disposal method for the incineration residue comprises the steps of: landfill of the incineration residue in a landfill section provided in a landfill land; a step of providing a sheet material for covering the landfill surface of the incineration residue in the landfill section; and a step for supplying water to the lower part of the sheet by using a watering device to maintain the water content in the landfill located below the sheet at 5-30%. The water content may be maintained at 10-25% by the supply of water using the watering device.
Owner:TMEIC CORP (100 00)

Ground materials and seabed reclamation methods

We propose a ground material using crushed clay tiles that can reduce turbidity when used underwater, and a method for reclamating seabeds using this ground material. [Solution] This is a ground material made by mixing crushed clay tiles and sand. The fine-grained content of the crushed clay tiles, including silt and clay, is 20% or less, the maximum particle size is 30 mm or less, and the 50% particle size is 10 mm or less. The maximum particle size of the sand is 2.0 mm, and the mixing ratio of sand to dry weight is in the range of 20% to 60%. When filling the bottom of a body of water with this ground material, it is moistened by soaking it in water before being placed in the water.
Owner:MARSIMA AQUA SYST CORP +2

Method for dewatering a spiral membrane element

Provided is a method for dehydrating a spiral membrane element, which can effectively remove moisture contained in a used spiral membrane element by a simple method. The method for dehydrating a spiral membrane element according to the present invention is a method for dehydrating a spiral membrane element E that contains moisture, the spiral membrane element E having a winding body and a perforated center tube, the winding body including a plurality of membrane sheets wound on the center tube and having a permeation-side flow path inside. Furthermore, the method for dehydrating a spiral membrane element according to the present invention includes a step of forming an opening (for example, an end face opening formed by a cut surface 16) that communicates the permeation-side flow path with the outside on the plurality of membrane sheets, and a step of applying a centrifugal force to the spiral membrane element on which the opening is formed.
Owner:NITTO DENKO CORP

High-density polyethylene composite geomembrane and production process

The invention provides a high-density polyethylene composite geomembrane and a production process thereof, and the high-density polyethylene composite geomembrane comprises a cast film and geotechnical cloth. The cast film is prepared from the following raw materials: 52 to 68 parts of high-density polyethylene, 6 to 12 parts of modified metallocene polyolefin-graphene compound, 4 to 9 parts of modified polyolefin-ethylene-vinyl alcohol master batch, 5 to 10 parts of alpha-olefin ethylene copolymer, 3 to 7 parts of vinyl elastomer, 1 to 3 parts of polytetrafluoroethylene micro powder, 0.1 to 0.3 part of antioxidant, 0.2 to 0.5 part of ultraviolet stabilizer and 0.1 to 0.3 part of lubricant. And 1.5-3 parts of an ultraviolet screening agent. The composite geomembrane obtained by the invention has the advantages of high strength, high toughness, high impermeability, excellent pollution resistance, excellent weather resistance, high puncture resistance, firm membrane-cloth combination, good thickness uniformity and the like.
Owner:HAINING ZHENYANG TEXTILE COMPOUND MATERIALS CO LTD

Hydraulic engineering foundation pit pipe well landfill construction method

The application relates to the technical field of water conservancy engineering foundation pit pipe well landfill, and particularly discloses a water conservancy engineering foundation pit pipe well landfill construction method, which specifically comprises the following steps: early preparation, construction preparation, landfill operation and post-treatment. The water conservancy engineering foundation pit pipe well landfill construction method is also used in a water conservancy engineering foundation pit pipe well landfill construction device, which comprises a fixing mechanism and a moving mechanism. According to the cooperation between the fixing mechanism and the moving mechanism, the filling material of the foundation pit can be filled layer by layer during the process of filling the foundation pit pipe well. The filling material is continuously filled layer by layer, and the filling process can be vibrated, so that the filling material is uniformly distributed and compacted, the filling layer has better stability, the continuous layer-by-layer filling method can make the landfill operation more standardized, and the filling work can be more efficiently completed.
Owner:ZHONGSHUIHUAIHEGUIHUA DESIGN RES CO LTD +1

Stabilization treatment system for household garbage landfill

ActiveCN223862526ULandfill technologiesSolid waste disposalDecompositionMunicipal solid waste landfill
The utility model provides a stabilizing treatment system for a household garbage landfill, which comprises a PLC (Programmable Logic Controller) control device which is respectively connected with a gas extraction well, a water replenishing well and a gas injection well through a gas extraction pipeline, a water replenishing pipeline and a gas injection pipeline; a monitoring and control device and a pollutant treatment device are arranged in each of the air exhaust pipeline and the air injection pipeline; and a monitoring and control device and a pollutant treatment device are also arranged in the water replenishing pipeline. According to the system, through arrangement of various devices, a good oxygen-enriched environment is formed in the domestic garbage body, rapid decomposition of organic matter in a domestic garbage heap body can be accelerated, the purpose of rapidly degrading the organic matter in the domestic garbage heap body is achieved, the domestic garbage in the heap body is stabilized, and garbage excavation and site comprehensive utilization in the later period are facilitated.
Owner:上海环境工程技术有限公司

Garbage pool anti-seepage construction auxiliary device

The utility model discloses an anti-seepage construction auxiliary device for a garbage pool, which belongs to the technical field of anti-seepage of garbage pools of power plants and comprises a movable base, a liquid storage container, a spraying component and a brushing component. The liquid storage container is arranged on the movable base, the liquid storage container is used for containing anti-seepage liquid, and an injection opening is formed in the top end of the liquid storage container; the spraying assembly comprises a connecting pipe connected with the liquid storage container and a spraying opening formed in an outlet of the connecting pipe, and a pump communicated with the connecting pipe is arranged in the liquid storage container; the brushing assembly comprises a connecting rod and a roller brush arranged on the connecting rod, and a main body used for supporting the connecting rod is arranged on the movable base; the spraying assembly and the brushing assembly are located on different sides of the movable base, so that the spraying assembly and the brushing assembly do not interfere with each other. According to the spraying device, the working efficiency of spraying the garbage pool can be improved.
Owner:CCFEB CIVIL ENG

Special hoisting tool for hazardous waste disposal box

The utility model discloses a special lifting tool for a hazardous waste disposal box, which comprises a lifting appliance beam and two hangers, four lifting hook tools are arranged on the lifting appliance beam, the top surface of the lifting appliance beam is rectangular, the four lifting hook tools are respectively arranged corresponding to four corner points of the rectangle, two symmetrically arranged lifting seats are arranged on the top surface of the lifting appliance beam, and the hangers are arranged on the lifting appliance beam. The two hanging racks are connected in parallel, the four lifting hook tools are divided into two groups which are symmetrically arranged, each group of lifting hook tools corresponds to one hanging rack, each lifting hook tool comprises a lifting hook sheet which is rotatably mounted, and the lifting hook sheets can be connected with the hanging racks in a hooking manner. The lifting hook tool has the remote control hooking and unhooking capability, workers do not need to enter a warehouse for unhooking operation, and the operation safety risk can be effectively avoided.
Owner:ZHEJIANG FEILE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Combined pile foundation for reinforcing prestressed pipe pile

The utility model discloses a combined pile foundation for reinforcing a prestressed pipe pile, and belongs to the technical field of constructional engineering, the combined pile foundation comprises a foundation part and a pipe pile part, the foundation part comprises an upper structure foundation, a plain concrete cushion layer, a garbage landfill layer and a bearing stratum soil body from top to bottom, and the pipe pile part comprises the prestressed pipe pile, a steel pipe pile and a reinforcement cage; a steel grouting floral tube I is inserted into the reinforcement cage; the prestressed pipe pile is novel in design and ingenious in device, by arranging the first steel grouting floral tube, the steel rod, the steel plate, the pushing blocks, the inserting plate and the drill bit, the steel rod is rotated to drive the multiple pushing blocks to rotate, the pushing blocks output pushing force, under the action of the pushing force, the inserting plate extends out of the steel plate, the firmness of the first steel grouting floral tube is improved through the inserting plate, and therefore the stability of the prestressed pipe pile is enhanced; when the first steel grouting floral tube is inserted, the drill bit can go deep into the bottom layer more quickly and conveniently, and the stability is improved while the use efficiency is improved.
Owner:SICHUAN JIUYI CONSTR ENG CO LTD

Geomembrane welding device

The invention relates to the technical field of civil engineering equipment, and discloses a geomembrane welding device which comprises a supporting bottom plate, and outer plates are arranged on the two sides of the bottom of the supporting bottom plate; moving parts are arranged on the outer walls of the outer plates; power parts are arranged on the inner walls of the outer plates; a middle plate is arranged in the center of the bottom of the supporting bottom plate, side plates are arranged on the two sides, located on the inner side of the outer plate, of the middle plate, second rails are arranged at the bottoms of the side plates, a set of matched second sliding blocks are arranged on the second rails on the two sides, a moving plate is arranged between the bottoms of the two sets of second sliding blocks, and the two sides of the moving plate are mechanically linked with the power part through second clamping blocks; a supporting rod is inserted into the middle of the movable plate, a second electrostatic adsorption plate is arranged at the bottom of the supporting rod, a shaft is inserted into the upper portion of the supporting rod, a limiting pulley is arranged at one end of the shaft, and a hollow-out convex guide groove matched with the limiting pulley is formed in the middle plate. The method has the beneficial effect that the two geomembranes can be welded in an overlapped mode.
Owner:JINAN TIANHAI PLASTIC PROD CO LTD

Dredging device for drainage hole of dump pit

The utility model discloses a dump pit drainage hole dredging device which comprises an outer shell, a dump pit is fixedly connected in the outer shell, a leachate gallery is fixedly connected in the outer shell, a hydraulic station is movably connected to the side face of the outer shell, and a control cabinet is movably connected to the side face of the outer shell. A second motor is fixedly connected to the upper end of the hydraulic station, a hydraulic pipe is fixedly connected to the side face of the hydraulic station, a door plate is movably connected to the side face of the control cabinet, a data panel is fixedly connected to the door plate, an anti-explosion camera is fixedly connected to a rotating shaft, and a movably-connected conical head piston sleeves a rotating rod. A threaded hole is formed in the conical head piston, a plurality of brushes are fixedly connected to the conical head piston, and the brushes are movably connected into the pipeline. By means of the structure, the complex and changeable garbage blocking situation is effectively dealt with, the manual operation risk is reduced, visual and safe visual feedback is provided for operators, and the dredging effect and applicability are enhanced.
Owner:WEIHAI ENVIRONMENTAL RENEWABLE ENERGY CO LTD

Method for testing impermeability of lap-joint high-low difference waterproofing membrane joint

The application relates to a method for detecting the water impermeability of a lap-jointed waterproof roll material joint, and is characterized by comprising the following steps: S1, sample pretreatment; and S2, sample detection. The application can not only eliminate the height difference of the roll material after lap joint, but also concentrate the pressure on the joint corresponding to the whole detection joint, while keeping the sample flat and the pressure on the lap joint uniform, preventing the lap joint from being depressed and collapsed due to the self weight, and accurately detecting the water impermeability of the waterproof roll material joint. On the other hand, the width of the detection joint can be adjusted, which not only meets the detection needs of different types of lap joint roll materials, but also can obtain the width corresponding to the limit water impermeability of the lap joint roll material by changing the size of the detection joint, so that the strength of the water impermeability of different roll materials and different lap joint widths can be determined.
Owner:CHINA BUILDING MATERIAL TEST & CERTIFICATION GRP SUZHOU

Landfill equipment for earthwork stone blasting

The utility model discloses landfill equipment for earthwork stone blasting, and relates to the field of earthwork stone blasting, the landfill equipment comprises a material injection pipe, the outer side of the material injection pipe is sleeved with a positioning sleeve, one end of the material injection pipe is detachably provided with an end cover, the circumferential surface of the positioning sleeve is fixedly connected with four supporting pieces distributed in the axis direction of the positioning sleeve, and the positioning sleeve is fixedly connected with the end cover. And the four supporting sheets are circumferentially and uniformly distributed by taking the axis of the positioning sleeve as a reference. Gravel is injected into a material injection pipe, the gravel slides into a drill hole through the material injection pipe, then the material injection pipe is taken out, an end cover is installed, a positioning sleeve is located in the drill hole, an extrusion ring is rotated to move towards four supporting pieces, the four supporting pieces are driven to be opened at the same time to abut against the inner wall of the drill hole, and then a motor is controlled to rotate; according to the device, the material injection pipe is driven to reciprocate in the positioning sleeve, gravel in a drilled hole is tamped, the whole operation process is rapid and convenient, the gravel with different depths can be tamped by adjusting the position of the material injection pipe, manual force application is avoided, and the practicability is improved.
Owner:SHAANXI NORTHERN YOUBANG EXPLOSIVE TECH CO LTD

Method for stabilizing controlled-type repository

To provide a method for stabilizing a controlled disposal site which stabilizes leachate for the purpose of abolishing the controlled disposal site.SOLUTION: In the method for stabilizing a controlled-type disposal site, for example, the container 4 formed in a bottomed cylindrical shape is immersed in alkaline water stored in the pumping well 56 in the controlled-type sea surface disposal site with the open portion thereof facing downward, and carbon dioxide is enclosed in the space 7 in the container 4 to neutralize the alkaline water, so that leachate can be stabilized for abolishing the controlled-type sea surface disposal site.SELECTED DRAWING: Figure 2
Owner:TOYO CONSTR

Blocking joint protection device for vertically blocking ultra-deep flexible film joint

The utility model relates to the technical field of risk management, control and repair of polluted land parcels, in particular to a barrier joint protection device for a vertical barrier ultra-deep flexible membrane joint, which comprises a fore shaft pipe and a flexible membrane, the fore shaft pipe is arranged in a cut-off wall grooving foundation pit, and the bottom of the fore shaft pipe is anchored into the cut-off wall grooving foundation pit; an interlocking buckle is arranged at the end, facing the locking opening pipe, of the flexible film, a protection assembly is arranged on the locking opening pipe and used for protecting the interlocking buckle, the protection assembly comprises protection plates arranged on the locking opening pipe, the protection plates are symmetrically arranged on the two sides of the interlocking buckle, and flexible rubber strips are arranged on the protection plates on the two sides of the interlocking buckle. The flexible rubber strips are provided with mud separating pieces used for separating mud, the mud separating pieces comprise flexible mud separating brushes arranged on the flexible rubber strips, and the flexible mud separating brushes on the two flexible rubber strips abut against each other. The method has the effects of reducing blockage of the flexible film joints and improving the supporting strength of the cut-off wall grooving foundation pit.
Owner:HANGZHOU ENVIRONMENTAL PROTECTION SCI RES DESIGN CO LTD

Waste disposal methods

The present invention provides a waste disposal method that can prevent or suppress the spread of contamination from waste buried in the soil to the surrounding area. [Solution] A waste treatment method comprising the steps of: an excavation step of digging a hole in the ground of land to bury the waste; a deposit step of depositing the waste into the hole; a burying step of backfilling the hole with soil and sand; a spraying step of spraying a treatment agent containing a thermoplastic resin onto the surface of the backfilled soil and sand; and a forming step of forming a waterproof layer of thermoplastic resin on the surface of the soil and sand, wherein in the burying step, soil and sand are used to form an embankment.
Owner:TECHNICA GOUDOU CO LTD

Geotextile structure with polypropylene and polyester composite interwoven layer

The utility model belongs to the field of geotextile structures, and particularly relates to a geotextile structure with a polypropylene and polyester composite interwoven layer, which comprises a surface layer, a middle layer and a bottom layer which are sequentially laminated and compounded, and a needling combination part vertically penetrating through the surface layer, the middle layer and the bottom layer, the surface layer is a polypropylene short fiber needle-punched non-woven fabric, the middle layer is a woven fabric formed by interweaving polyester filaments and polypropylene flat filaments, and the bottom layer is a polyester short fiber needle-punched non-woven fabric; the needling combination part is a fiber entangled body; the warps of the middle layer are polyester filaments, and the wefts of the middle layer are polypropylene flat filaments; a four-layer redundant design of a comparison scheme is replaced by a three-layer simplified structure and a vertical needling combination part, polyester filament warp yarns and polypropylene flat filament weft yarns in the middle layer are interwoven to form a high-strength water-permeable channel, and meanwhile, a fiber entanglement body of the needling combination part penetrates through three-layer anchoring, so that the problems of pore blockage and layering risks caused by a glass fiber layer are thoroughly solved; the original unification of obdurability and water permeability is realized.
Owner:HANGZHOU XIAOSHAN SHENLIAN CHEMFIBRE & TEXTILE CO LTD

Solid waste partition landfill mobile vehicle

The utility model discloses a solid waste zoning landfill mobile vehicle, which relates to the technical field of solid waste treatment, and comprises a frame, a carriage is arranged on the frame, one side of the lower end of the carriage is fixedly connected with a rotating shaft, the frame is fixedly connected with two rotating sleeves, and the two rotating sleeves are fixedly connected with the carriage. The two rotating sleeves are rotationally connected to the outer end of the rotating shaft, and a discharging opening is formed in the side, located on the rotating shaft, of the carriage. A connecting shaft is rotationally connected to the discharging opening and fixedly connected with a sealing door, a transmission mechanism for automatically opening and closing the sealing door is arranged on the carriage, a dumping component is arranged on the frame, and the carriage inclines towards the side face through the dumping component, so that solid waste is discharged from the discharging opening in the side face of the carriage. The problem that toppling is inconvenient at a narrow channel is avoided, a plurality of moving vehicles can be connected together through the fixing hooks and the fixing rings, simultaneous transportation and toppling operation is achieved, and the working efficiency is greatly improved.
Owner:GUANGZHOU LIANZHI TONGCHUANG ENVIRONMENTAL PROTECTION TECH CO LTD

Material dustproof device for geomembrane production line

The utility model relates to the technical field of geomembrane production and processing, and discloses a material dustproof device for a geomembrane production line, which comprises a fixing assembly, a membrane material limiting assembly and an impurity removing assembly, according to the material dustproof device for the geomembrane production line, a C-shaped clamping plate can be pushed to slide on the inner wall of a clamping box body through tension released by a spring, and the delay length of the C-shaped clamping plate can be controlled through the buckling connection effect between a connecting shaft and a clamping block; the problem that the use range of the equipment is limited due to the fact that the equipment cannot adapt to membrane materials of different sizes can be effectively avoided; and through the clamping effect between the shaft rod and the cylinder body supporting ring, a worker can conveniently replace brush heads of different models, impurities attached to the outside of the membrane material can be removed when the brush heads clean the membrane material, and therefore the situation that the impurities are shaped together with the membrane material and consequently the membrane material goes bad can be effectively avoided.
Owner:SHANDONG ROAD NEW MATERIALS CO LTD

A method for preventing groundwater leakage in waste treatment plants

The application belongs to the technical field of landfill anti-seepage, and specifically discloses a groundwater anti-seepage treatment method for a waste treatment plant. The method comprises the following steps: laying an exhaust layer on the upper side of a waste pile, wherein the exhaust layer is composed of gravel; laying an under-membrane protection layer on the upper side of the exhaust layer, wherein the under-membrane protection layer is composed of modified clay; laying an HDPE geomembrane on the upper side of the under-membrane protection layer, and laying an over-membrane protection layer on the upper side of the HDPE geomembrane; laying a drainage layer on the upper side of the over-membrane protection layer; and laying a green soil layer on the upper side of the drainage layer, and the treatment method is obtained. Raw material components of the modified clay include modified attapulgite, sodium carboxymethyl cellulose, modified zeolite, betaine, polyvinyl alcohol, deionized water, defoaming agent and water reducing agent. The drainage net comprises a modified polyethylene fiber layer, a polyethylene interlayer and a geotextile layer. The treatment method has good effects and excellent anti-seepage and anti-leakage effects.
Owner:HENAN GEOLOGICAL ENVIRONMENT PLANNING & DESIGN INST CO LTD

Capillary retardation covering layer for waste dump in seasonal frozen region as well as preparation method and application of capillary retardation covering layer

The invention discloses a capillary retardation covering layer for a waste dump in a seasonal frozen region and a preparation method and application thereof, and belongs to the technical field of mine environmental protection and tailing treatment. The covering layer is sequentially provided with a secondary impermeable layer, a capillary blocking covering layer and a cultivation soil layer from bottom to top. The secondary impermeable layer is a clay layer with the compaction degree larger than or equal to 95%, and the thickness is 20-30 cm; the capillary retardation covering layer comprises a coarse grain discharging and guiding layer and a water storage layer, the coarse grain discharging and guiding layer is made of slag with the grain size of 5-15 mm, and the thickness of the coarse grain discharging and guiding layer is 20-30 cm; the water storage layer is a mixture of clay and slag, 2%-5% of organic silicon is doped, the compaction degree is 85%-90%, and the thickness is 80-100 cm; the planting soil layer is a mixture of clay and slag, 1.0%-2.0% of guar gum is doped, the compaction degree is 75%-80%, and the thickness is 30-40 cm. Through the multi-layer structural design and the specific material ratio, capillary water is effectively prevented from rising, the water storage capacity is improved, and a good environment is provided for plant growth.
Owner:CHANGAN UNIV +2

Liquefaction prevention method

By using materials that do not harden excessively and employing simple construction methods, liquefaction in the target area is prevented by natural processes. [Solution] The liquefaction prevention method for preventing liquefaction of the ground 1 includes an excavation step of excavating a cylindrical hole 3 in the ground 1 with an auger 2, a mixed material generation step of mixing a portion of the excavated soil 4 discharged from the hole 3 by the excavation step with fine and micro-grained natural soil from the outside to generate a mixed material 5, wherein the mixed material 5 does not contain cement-based solidifying agents or quicklime, and a column generation step of filling the hole 3 with the mixed material 5 generated in the mixed material generation step to compact the hole 3 and generate a column 6 of the mixed material 5 inside the hole 3, after the column 6 is generated, the fine and micro-grained particles inside the column 6 diffuse into the surrounding area by natural action.
Owner:TOKYO CONTECH CO LTD

Method for selecting a protective layer under a geomembrane under the action of circulating water head

This invention belongs to the field of hydraulic engineering technology and provides a method for selecting a protective layer under geomembrane under circulating water head. The method includes the following steps: conducting stress-induced damage tests on geomembranes with different combinations of protective layer thickness and circulating water head characteristics on a granular cushion layer; establishing a quantitative relationship between the protective layer thickness and circulating water head characteristics to prevent geomembrane stress-induced damage; plotting a surface showing the relationship between circulating water head conditions and the thickness of the protective layer; defining the stress-induced damage conditions of the geomembrane; and determining the minimum thickness of different types of protective layers based on the circulating water head magnitude, duration, and cycle in actual engineering projects, thereby selecting the appropriate protective layer for the geomembrane. This invention has significant scientific research value and engineering application value for the selection and thickness design of protective layers to avoid geomembrane damage in practical engineering projects.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +2

Emergency transfer device for full-load garbage warehouse leachate

The utility model belongs to the technical field of garbage treatment, and discloses a full-load garbage warehouse leachate emergency transfer device which comprises a garbage warehouse, the front surface of the garbage warehouse is fixedly connected with a leachate warehouse, the upper surface of the leachate warehouse is fixedly connected with a supporting seat, and the upper surface of the supporting seat is rotationally connected with a rotating shaft. The outer surface of the rotating shaft is fixedly connected with a framework, the framework is provided with a pump wire stretching and collecting wire arranging device and a lifting electric hoist, the output end of the lifting electric hoist is fixedly connected with a chain, the other end of the chain is fixedly connected with a water suction pump, the outer surface of the water suction pump is fixedly connected with a protection cage, and the protection cage is provided with an access door. Through cooperation of the supporting base, the rotating shaft, the framework, the lifting electric hoist, the chain and the water suction pump, an operator can conduct simple key pressing operation away from the edge of the garbage warehouse, emergency transfer of leachate is completed, through cooperation of the water suction pump, the protection cage and the access door, the water suction pump can be protected, entering of garbage is reduced, and the service life of equipment is prolonged.
Owner:HANLANLVDIAN SOLID WASTE TREATMENT (FOSHAN) CO LTD 2ND +1

Landfill gas guiding and discharging system for side slope of landfill

The utility model relates to the technical field of sanitary landfill of household garbage, in particular to a landfill side slope landfill gas guiding and discharging system which comprises a gas collecting well, a gas guiding blind ditch and a connecting blind ditch, and the center of the gas collecting well is fixedly connected with an HDPE gas guiding pipe. The gas guide blind ditch is arranged in the irregular area, the side slope area or the corner area of the landfill, and the connecting blind ditch is connected with the nearest gas collecting well, so that the influence of the gradient of the side slope area on the drilling depth of the conventional gas collecting well is eliminated, and the gas guide effect of the landfill gas in the side slope area is greatly enhanced; meanwhile, the defect that the coverage range of a conventional gas collecting well is limited can be overcome, the gas guide blind ditches can be flexibly arranged according to on-site topography, slope gradient changes and the like, the guide and drainage coverage range is large, the whole device is easy to construct and reliable in structure, and the risk that the conventional gas collecting well damages a slope bottom anti-seepage structure is reduced; and safe and stable operation of the landfill gas guiding and discharging system is facilitated.
Owner:HUNAN MORDEN ENVIRONMENT TECH

Method of manufacturing landfill material

This invention provides a landfill material that can be used even when there is a time lag between mixing and dispensing it into water. [Solution] The method for manufacturing landfill material involves mixing soil, a stabilizer, and a setting retarder to produce landfill material in a non-slurry state. The method includes the step of adding a separation inhibitor to the mixed material obtained by the step of mixing soil, a stabilizer, and a setting retarder, in order to prevent the separation of the stabilizer and the soil, and the amount of setting retarder mixed is controlled based on the water content of the soil.
Owner:JDC INC +3

A geomembrane laying device

This invention relates to the field of membrane laying technology, and more particularly to a geomembrane laying device. It includes a frame with two sets of rollers symmetrically arranged on it. These rollers work together to support the geomembrane roll. A base plate is detachably mounted at both ends of the geomembrane roll on the frame. A primary spring is mounted on the base plate, with a truss plate above it. A secondary spring is mounted on the truss plate, and a support is mounted above the secondary spring. A horizontal insert is detachably mounted on the support, with a rod inserted into the insert. A top spring is positioned between the rod and the insert. This multi-stage buffer structure, combining primary and secondary springs, along with the top spring, achieves graded dispersion of elastic tension, significantly reducing the geomembrane pinching and tensile damage problems caused by the concentrated tension of traditional single-segment springs, thus ensuring the geomembrane's impermeability and service life.
Owner:HENAN HUAZHONGKEXIANG PETROLEUM MACHINERY CO LTD