32results about How to "Reduce runoff pollution" patented technology

The present invention discloses a low elevation greenbelt rainwater regulation scheduling pool and a distributed rainwater regulation scheduling pool system. The distributed rainwater regulation scheduling pool system comprises a low elevation greenbelt (1), a rainwater overflow well (2) and a rainwater regulation scheduling pool (7), and water storage, drainage and supply which are integrated with a rainwater pipe network or a sewage pipe network are achieved. Compared with the prior art, rainfall runoff and flood detention can be effectively adjusted, runoff pollution can be reduced, and purification, storage and utilization functions of rainwater are fulfilled; and the system is tightly combined with the rainwater and sewage pipe networks of a city, the problems of urban inland inundation caused by rainstorm, the runoff pollution caused by rain wash, and rainwater resource utilization are solved, water storage is scheduled according to drainage ability of drainage pipelines, an important means is provided for sponge urban construction, and the system has outstanding social, environmental and economic benefits.

The invention relates to a regulation and storage design and model verification method for mountain parks built on the basis of sponge city concept. The method comprises following steps: A. determining the annual runoff volume control rate of a mountain park; B. initially bringing up LID module control indexes according to the annual runoff volume control rate of a mountain park; C. calculating the regulation and storage volume of each LID module according to the LID module control indexes, adjusting the LID module control indexes so that the regulation and storage volume of gray regulation and storage devices is no more than a preset value and obtaining the regulation and storage volume of the LID module; D. module layout; E. model analysis. The method puts the idea of sponge city into practice comprehensively; the construction of mountain parks and the building of sponge city are integrated; the design method of constructing sponge parks is further fulfilled so as to realize natural accumulation, penetration and purification of rainwater by the mountain parks.

The invention discloses a biological filter and a design method thereof. Through a planting soil layer, a filling layer and a gravel drainage layer, sewage can be subjected to multistage filtering and then is introduced into an overflow well through a perforated drain pipe. By employing the biological filter, runoff pollution of urban roads can be reduced, reclamation of rainwater can be achieved, the urban ecological environment can be restored, and rainwater utilization engineering of construction zones and urban roads can be safe, reliable, economical and applicable, and can be advanced in technology.

The invention discloses a management system for compound rainwater in a residential area. The management system comprises a rainwater hopper (1), a rainwater filtering device (2), a rainwater processing device (3) and a storage clean water tank (7), wherein the rainwater hopper (1) is arranged on a roof and is used for collecting the roof rainwater; the rainwater processing device (3) comprises a cylindrical separating bin, a spiral settling pond (4) and an absorbing plate (5); the spiral settling pond (4) is arranged at the bottom in the separating bin; the absorbing plate (5) is arranged at the center in the separating bin; the rainwater filtering device (2) is communicated with the spiral settling pond (4); water after entering into the storage clean water tank (7) and being treated is communicated with a domestic water pool (9) through a water pump (8). The management system for compound rainwater in the residential area integrates the functions of collecting, purifying, storing and dispatching rainwater and using rainwater for sprinkling green belt. The system has the advantages that the device volume is not large, the cost is low, the address selection and management are easy and the problem of shortage of urban domestic and fire-protection water is effectively solved.

The invention discloses a lifting wall-mounted type ecological protection belt for a hardening riverway. The lifting wall-mounted type ecological protection belt comprises cylindrical steel rails, chains, chain wheels and trapezoid grooves. The cylindrical steel rails are fixed to the shoreside, seams not pulled through are formed in one sides of the cylindrical steel rails. The chains penetrate the hollow parts in the cylindrical steel rails and wind around the chain wheels fixed to the top ends of the cylindrical steel rails. Thin plates are fixed to the two sides of the trapezoid grooves and fixed to the chains through the seams of the cylindrical steel rails. Water outlet holes are formed in the sides, facing the river, of the trapezoid grooves. Arc edges are arranged on the upper edges of the sides, making contact with the river bank, of the trapezoid grooves. Lower layers in the trapezoid grooves are filled with fine filter materials, upper layers in the trapezoid grooves are filled with coarse filter materials, and plants are planted. The lifting wall-mounted type ecological protection belt for the hardening riverway has the technical beneficial effects that the trapezoid grooves can be arranged in a ladder manner along the river bank after being adjusted, and multi-stage processing is carried out on the rainfall runoff; and the construction difficulty is lowered, the construction cost is reduced, and maintenance and management are convenient.

The invention discloses a construction method of a novel greenbelt structure based on a sponge city. The construction method comprises the steps of 1, sorting a planting layer; 2, building an impounding reservoir; 3, storing water for the ground in place; 4, burying a negative well; 5, laying bricks; 6, arranging a control chamber; 7, arranging a probe; 8, conducting greenbelt planting and daily management. The construction method is easy in construction, low in difficulty and ordered in construction, the construction quality is easy to control, less construction equipment is needed, the construction cost is low, the permeation effect is good, water-permeable bricks and water-permeable concrete are laid, so that rainwater quickly infiltrates, the excess infiltration part enters a greenbeltarea, plants in the greenbelt hold up rainwater, and the retention time of the rainwater in the greenbelt area is prolonged.

The invention discloses a saline-alkali regional water resource collection and utilization system capable of automatic drip irrigation. The system comprises a soil body and water storage wells, wherein the soil body comprises a planting soil layer, a water-permeable film layer, a water storage layer, a waterproof layer and a saline-alkali soil layer arranged from top to bottom in sequence; groovesextending into the saline-alkaline soil layer are formed in the lower surface of the water storage layer, and a closed pipe is arranged in each groove; each closed pipe is communicated with the corresponding water storage well in a sloping manner; the water storage wells are arranged in the soil body at intervals; an intersection of the system and a surrounding building or a structure is coveredwith a lateral waterproof layer reversely; a water intake socket is formed in the bottom of each water storage well; a water intake pipe is arranged in each water storage well; a drip irrigation device is arranged at an outlet end of each water intake pipe; and a floating ball valve is arranged on each water intake pipe. By adopting the system provided by the invention, rainwater which penetratesinto the planting soil layer after the rain can be effectively collected, and the salt-alkaline soil layer can be prevented from returning salt to the planting soil layer; in a water shortage zone inthe saline-alkali land, every drop of water that penetrates into the soil can be prevented from draining.

The invention discloses a saline-alkali region building and green space water resource regulation and storage utilization system. The saline-alkali region building and green space water resource regulation and storage utilization system comprises a soil body and water storage wells; the soil body comprises a planting soil layer, a water permeable membrane layer, an aquifer layer, a waterproof layer and a saline-alkali soil layer which are arranged from top to bottom in sequence; the planting soil layer is provided with a downward concave green space, and a pit is formed in the lowest point ofthe downward concave green space; the depth of the pit extends to the water permeable membrane layer, and the pit is filled with a mixture of planting soil and mountain skin sand; grooves protruding into the saline-alkali soil layer are formed in the lower surface of the aquifer layer, and the grooves are internally provided with concealed conduits; the water storage wells are arranged in the soilbody at intervals; the planting soil layer is connected with surrounding structures from low slope to high slope; and rain dustpans and pebble ditches are arranged on the upper surface of the junction of the edge of the planting soil layer and surrounding buildings. The system can effectively collect rainwater collected in the downward concave green space after rainfall, and does not cause salt in the saline-alkali soil layer to be returned to the planting soil layer; and the saline-alkali region building and green space water resource regulation and storage utilization system can further reduce the greening elevation of saline-alkali land, reduce the amount of earthwork and reduce runoff pollution to roads and other surrounding facilities.

The invention discloses a saline-alkali region road and green space water resource regulation and storage utilization system. The saline-alkali region road and green space water resource regulation and storage utilization system comprises a soil body and water storage wells; the soil body comprises a planting soil layer, a water permeable membrane layer, an aquifer layer, a waterproof layer and asaline-alkali soil layer which are arranged from top to bottom in sequence; the planting soil layer is provided with a downward concave green space, and a pit is formed in the lowest point of the downward concave green space; the depth of the pit extends to the water permeable membrane layer, and the pit is filled with a mixture of planting soil and mountain skin sand; a seepage well is further arranged in the downward concave green space, and the seepage well extends 50-120 cm downward from the upper surface of the planting soil layer and with a distance of 10-20 cm to the water permeable membrane layer; and the seepage well internally includes a sand filter and / or aggregate chips, and inclined downward seepage pipes leading to the planting soil layer are arranged on the lower part of theouter wall of the seepage well. The saline-alkali region road and green space water resource regulation and storage utilization system can effectively collect rainwater collected in the downward concave green space after rainfall, and does not cause salt in the saline-alkali soil layer to be returned to the planting soil layer; and the saline-alkali region road and green space water resource regulation and storage utilization system can further reduce the greening elevation of saline-alkali land, reduce the amount of earthwork and reduce runoff pollution to roads and other surrounding facilities.

The invention discloses a dynamic and static combined type economical zone. The dynamic and static combined type economical zone comprises a plurality of slide rails which are longitudinally arrangedalong a side slope slope-surface through supporting rods, wherein the slide rails are parallel to one another; a soiless culture pipeline is mounted between every two slide rails, and the two ends ofthe soiless culture pipeline are in sliding connection with the slide rails, a plurality of planting holes are uniformly formed in the top of the soiless culture pipeline, a plurality of water inletsand outlets are uniformly formed in the tube walls of the two sides of the soiless culture pipeline, a blocking net is mounted between the supporting rods at the top ends of the slide rails, a planting slot is fixedly mounted on the blocking net, and a plurality of water draining holes are uniformly distributed at one side, towards a river, of the planting slot. The dynamic and static combined type economical zone for the urban river hardened side slope and the construction method for the dynamic and static combined type economical zone provided by the invention can effectively solve the problem of drilling planting holes in the slope-surface or hanging plants on a river bank, can improve the water quality of an urban river, can beautify the environment of the urban river, and further canimprove safety of the urban river.

The invention discloses a drainage-valve-containing saline-alkali region water resource collecting and utilizing system, which comprises a soil body and vent holes. The soil body comprises a plantingsoil layer, a permeable membrane layer, a water storage layer, waterproof layers and a saline-alkali soil layer which are sequentially arranged from top to bottom; the planting soil layer and the water storage layer are isolated through the permeable membrane layer; the water storage layer and the saline-alkali soil layer are isolated through the waterproof layers; junctions of the outer side of the soil body and surrounding buildings or structures are inversely packed through the lateral waterproof layers; and the vent holes extend downwards to the permeable membrane layer from the planting soil layer of the soil body. Rainwater permeating into the planting soil layer after precipitation can be effectively collected, and salt return of the saline-alkali soil layer to the planting soil layer is avoided; and in addition, the greening elevation of saline-alkali land can further be lowered, the earth volume is decreased, and meanwhile runoff pollution to surrounding facilities such as roads is reduced.

The invention provides a bioretention-pond-containing saline-alkali region water resource regulation and storage utilizing system, which comprises a soil body and water storage wells. The soil body comprises a planting soil layer, a permeable membrane layer, a water storage layer, waterproof layers and a saline-alkali soil layer which are sequentially arranged from top to bottom; a bioretention pond is formed in the planting soil layer, a pit is formed in the lowest position of the bioretention pond, the depth of the pit extends to the permeable membrane layer, and the pit is filled with a mixture of planting soil and mountain sand; a trench protruding into the saline-alkali soil layer is formed in the lower surface of the water storage layer and internally provided with a concealed conduit; the water storage wells are formed in the soil body at intervals; the planting soil layer is connected with surrounding structures in the slope direction from low to high; and pebble ditches are formed in the upper surfaces of the junctions of the edge of the planting soil layer and surrounding buildings. According to the bioretention-pond-containing saline-alkali region water resource regulation and storage utilizing system, rainwater converged into the bioretention pond after precipitation can be collected very effectively, and salt return of the saline-alkali soil layer to the planting soil layer is avoided; and the greening elevation of saline-alkali land can further be lowered, and meanwhile runoff pollution to surrounding facilities such as roads is reduced.

The invention discloses a foundation construction technology. The foundation construction technology mainly comprises the following steps that S1, a curing agent is evenly sprayed and distributed to the surface of a roadbed foundation, and then coarse aggregates are adopted to be laid and ground and then serve as a cushion layer; S2, a steel bar net layer is bundled to the cushion layer, a layer of a soluble film is laid on the steel bar net layer, and then a semi-rigid lower base layer is evenly sprayed and distributed to the soluble film; S3, a water seepage brick compaction layer is laid onthe upper surface of the semi-rigid lower base layer; S4, a semi-rigid upper base layer is evenly sprayed and distributed to the position above the water seepage brick compaction layer; S5, the position above the semi-rigid upper base layer is filled with a mixed material of gravels and epoxy resin, and then compaction is conducted; and S6, an emulsified asphalt layer for fixing and boding the epoxy resin layer is sprayed and distributed to the compacted mixed material layer. The foundation is good in water seepage performance, the situation of foundation face water accumulation is avoided, and accordingly the effect that foundation vehicle transportation is not influenced is achieved.

The invention discloses a dynamic and static combined type economical zone. The dynamic and static combined type economical zone comprises a plurality of slide rails which are longitudinally arrangedalong a side slope slope-surface through supporting rods, wherein the slide rails are parallel to one another; a soiless culture pipeline is mounted between every two slide rails, and the two ends ofthe soiless culture pipeline are in sliding connection with the slide rails, a plurality of planting holes are uniformly formed in the top of the soiless culture pipeline, a plurality of water inletsand outlets are uniformly formed in the tube walls of the two sides of the soiless culture pipeline, a blocking net is mounted between the supporting rods at the top ends of the slide rails, a planting slot is fixedly mounted on the blocking net, and a plurality of water draining holes are uniformly distributed at one side, towards a river, of the planting slot. The dynamic and static combined type economical zone for the urban river hardened side slope and the construction method for the dynamic and static combined type economical zone provided by the invention can effectively solve the problem of drilling planting holes in the slope-surface or hanging plants on a river bank, can improve the water quality of an urban river, can beautify the environment of the urban river, and further canimprove safety of the urban river.

The invention discloses a spongy rainwater collecting and recycling system for planting plants, and belongs to the technical field of sponge cities. The spongy rainwater collecting and recycling system for planting plants is provided with a rainwater collecting, utilizing and recycling device, a vegetation layer is arranged on the surface, a fine sand layer is arranged on the lower portion of the vegetation layer, a gravel layer is arranged on the lower portion of the fine sand layer, a first water collecting well is arranged on the lower portion of the gravel layer, and a first water collector and a second water collector are installed in the first water collecting well; the top of the first water collector in the first water collecting well extends out to be connected with an irrigation nozzle on the upper portion of the vegetation layer; and a second water collecting well is arranged on the right side of the vegetation layer, and the vegetation layer and the second water collecting well are connected through a first water inlet pipe. According to the system, rainwater can be effectively collected for secondary utilization, and runoff water can be collected and filtered to be used for watering trees and used as domestic water; and the system is energy-saving and environmentally friendly, the construction is convenient, the rainwater can be effectively collected and utilized, and water resources are saved.

The invention discloses an initial rainwater collecting pool with a later rainwater automatic discarding function, and belongs to the field of rainwater treatment. The initial rainwater collecting pool comprises an initial rainwater collecting pool body, wherein the initial rainwater collecting pool body comprises a collecting pool main body, and a drainage assembly is connected to one side of thecollecting pool main body and comprises a drainage base element connected with the collecting pool main body; the top surface of the drainage base element is flush with the top surface of the collecting pool main body, the drainage base element is provided with a drainage channel which is horizontally arranged and communicates with the collecting pool main body, and a gap is formed between the bottom surface of the drainage channel and the top surface of the collecting pool main body; and a trash rack is arranged at the communication position of the collecting pool main body and the drainagechannel, and a drainage through groove communicating with the drainage channel is formed in the side surface of the drainage base element. According to the invention, the dilution effect of the laterrainwater on initial rainwater is reduced, the sedimentation rate of pollutants in the rainwater is improved, the initial rainwater and the later rainwater are efficiently collected and purified, theproblem of runoff pollution of the rainwater to cities is solved, and the initial rainwater collecting pool can be applied to the construction of sponge cities on a large scale and has the characteristic of good compatibility.

The invention discloses a permeation-well-containing saline-alkali region water resource collecting and utilizing system, which comprises a soil body and water storage wells. The soil body comprises aplanting soil layer, a first permeable membrane layer, a water storage layer, waterproof layers and a saline-alkali soil layer which are sequentially arranged from top to bottom; a quick permeation purification well is arranged in the planting soil layer, extends downwards to the first permeable membrane layer from the upper surface of the planting soil layer, and comprises a sand filtering layer, a second permeable membrane layer and a stone chip layer from top to bottom; a trench protruding into the saline-alkali soil layer is formed in the lower surface of the water storage layer and internally provided with a concealed conduit; the concealed conduit is connected and communicates with the water storage wells in the slope direction; and the water storage wells are formed in the soil body at intervals, and the depths of the water storage wells extend to the lower part of the trench from top to bottom. According to the permeation-well-containing saline-alkali region water resource collecting and utilizing system, rainwater collected into downward-sunken green land after precipitation is quickly and effectively collected, and salt return of the saline-alkali soil layer to the planting soil layer is avoided; and in addition, the greening elevation of saline-alkali land can further be lowered.

The invention discloses a comprehensive saline and alkali region water resource collection and utilization system. The comprehensive saline and alkali region water resource collection and utilizationsystem comprises a soil body, a vent hole and a storage and drainage well; the soil body comprises a planting soil layer, a water permeable film layer, a water storage layer, a waterproof layer and asaline-alkali soil layer which are sequentially arranged from top to bottom; the vent hole extends downward from the planting soil layer of the soil body to the water permeable film layer; a groove protruding into the saline-alkaline soil layer is formed in the lower surface of the water storage layer, and the groove is internally provided with a dark pipe; the dark pipe is connected with the communicating storage and drainage well in a slope direction; and the storage and drainage well is arranged in the soil body, the depth of the storage and drainage well extends from top to bottom to the lower part of the groove, the wall of the storage and drainage well is of a watertight structure, and an overflow drainage drain pipe is arranged on the wall of the storage and drainage well and has ahorizontal height of 20-50 cm in the planting soil layer. The comprehensive salt and alkali region water resource collection and utilization system can effectively collect rainwater which penetrates into the planting soil layer after the rainfall, and the situation that slat is returned from the saline-alkaline soil layer to the planting soil layer is not caused.

The invention provides a building and community rainwater quality-divided treatment process based on a waterfront space. The process comprises the following steps of (1) source distributed collection:draining rainwater on a building roof into a rainwater collection well through a rainwater vertical pipe, and draining rainwater on a road surface into the rainwater collection well after treatment by a source purification facility; (2) midway pipe network transportation: collecting rainwater in the rainwater collection well into a rainwater drainage header pipe; and (3) tail end centralized purification: inputting rainwater from the rainwater collection well into a tail end purification facility through the rainwater drainage header pipe for treatment. Compared with the prior art, the schemehas the advantages that initial rainwater runoff pollution can be efficiently reduced on the premise of ensuring the landscape effect of a community, natural accumulation, natural permeation and natural purification of rainwater are realized, quality-divided treatment is carried out on runoff rainwater of roads and roofs in buildings and communities, the engineering cost and the later maintenancecost are reduced, and meanwhile, the drainage safety is realized.

The invention discloses an urban anti-blocking pollution-control rainwater rapid diversion system, and relates to the technical field of urban rainwater treatment, the urban anti-blocking pollution-control rainwater rapid diversion system comprises a sewage filtering environment-friendly gutter inlet, a sewage filtering greening separation zone and a rainwater filtering device, the end face of the sewage filtering environment-friendly gutter inlet is matched with the slope trend of a vehicle driving road surface, and the end face of the rainwater filtering environment-friendly gutter inlet is matched with the slope trend of the vehicle driving road surface; a rainwater detention pond is arranged below the sewage filtering environment-friendly rainwater opening and connected with a rainwater filtering device through a rainwater conveying pipeline arranged in the sewage filtering greening separation belt, the rainwater filtering device is arranged in the sewage filtering greening separation belt, and the top end face of the rainwater filtering device is matched with the gradient trend of a vehicle driving road surface. Permeable curbs are discontinuously arranged on one side, in the driving direction, of the sewage filtering and greening separation strip, the end face of the sewage filtering and greening separation strip is lower than the end face of the driving road surface, and a slope inclining towards the sewage filtering and greening separation strip is arranged at the joint of the permeable curbs and the sewage filtering and greening separation strip. Rainwater is rapidly divided, road accumulated water and urban waterlogging are reduced, and runoff pollution of the rainwater is controlled.

The invention discloses a rainwater storage and regulation system suitable for an open large plane. The rainwater storage and regulation system comprises a rainwater sewage intercepting and basket hanging device (1), a rainwater pretreatment device (2), a rainwater treatment device (3), a rainwater regulation tank and a rainwater utilization device (12), wherein the rainwater sewage intercepting and basket hanging device (1), the rainwater pretreatment device (2), the rainwater treatment device (3), the rainwater regulation tank and the rainwater utilization device (12) are communicated in sequence; the rainwater regulation tank comprises impermeable membranes (7) which are arranged at the bottom and on an inner wall of the rainwater regulation tank, an arched rainwater regulation module (9) which is arranged at the bottom of the rainwater regulation tank and a permeable layer (8) which is arranged on the arched rainwater regulation module (9); rainwater which enters the rainwater regulation tank is stored in the arched rainwater regulation module (9) through the permeable layer (8) and a permeating hole (92). According to the rainwater storage and regulation system, no water accumulation and drainage safety of an open large plane site can be effectively guaranteed, the problem of waterlogging caused by disaster weather is solved, and the recycling of rainwater resources is realized.

The invention discloses a saline-alkali region water resource collection and utilization system with a seepage well and micro-irrigation. The saline-alkali region water resource collection and utilization system comprises a soil body, an air vent hole and water storage wells; the soil body comprises a planting soil layer, a water permeable membrane layer, an aquifer layer, a waterproof layer and asaline-alkali soil layer which are arranged from top to bottom in sequence; the air vent hole extends downward from the planting soil layer of the soil body to the water permeable membrane layer; theseepage well is arranged in the planting soil layer, and the seepage well extends 50-120 cm downward from the upper surface of the planting soil layer and with a distance of 10-20 cm to the water permeable membrane layer; the seepage well internally includes a sand filter and / or aggregate chips, and inclined downward seepage pipes leading to the planting soil layer are arranged on the lower partof the outer wall of the seepage well; grooves protruding into the saline-alkali soil layer are formed in the lower surface of the aquifer layer, and the grooves are internally provided with concealedconduits; the concealed conduits are connected with the water storage wells in a communicating mode in the slope direction; and a micro-jet pipe is arranged at the outlet end of a water intake pipe.The saline-alkali region water resource collection and utilization system can effectively collect and utilize rainwater infiltrated into the planting soil layer after rainfall, and does not cause saltin the saline-alkali soil layer to be returned to the planting soil layer.

The invention discloses a method for manufacturing a rainwater garden by using building particle waste. The method comprises the following steps that 1, local building particle waste is acquired nearby; 2, the building particle waste is pretreated, sorted and crushed, and the building particle waste with the particle size being 5-15 mm and the building particle waste with the particle size being 15-25 mm are screened out; 3, the building particle waste is taken as a ground surface covering material: the building particle waste and other common materials are set into a contrast experiment, and the following indexes are measured respectively: a heat preservation and water storage index, a soil improvement index and a plant growth promotion index; after the determination is finished, data is analyzed and optimal parameters are evaluated comprehensively; 4, the building particle waste serves as a rainwater garden filler layer, and an orthogonal experiment is set according to different filler types, heights and particle sizes; 5, technical integration of application of the building particle waste in the rainwater garden is obtained; and 6, the method for making the rainwater garden by using the building particle waste is obtained, which is suitable for local use.

The invention discloses a simple saline-alkali region water resource collection and utilization system. The simple saline-alkali region water resource collection and utilization system comprises a soil body and an air vent hole; the soil body comprises a planting soil layer, a water-permeable membrane layer, an aquifer layer, a waterproof layer and a saline-alkali soil layer which are arranged from top to bottom in sequence; the planting soil layer and the aquifer layer are separated by the water-permeable membrane layer; the aquifer layer and the saline-alkali soil layer are separated by thewaterproof layer; the junction of the outer side of the soil body and surrounding buildings or structures is reversely wrapped with a lateral waterproof layer; and the air vent hole extends downward from the planting soil layer of the soil body to the water-permeable membrane layer. The simple saline-alkali region water resource collection and utilization system can effectively collect rainwater which infiltrates into the planting soil layer after rainfall, and does not cause salt in the saline-alkali soil layer to be returned to the planting soil layer; in addition, the simple saline-alkali region water resource collection and utilization system can further reduce the greening elevation of saline-alkali land, reduce the amount of earthwork and reduce runoff pollution to roads and other surrounding facilities; and in a saline-alkali water shortage zone, each drop of water infiltrated into soil cannot be drained.

The invention discloses a simulation test device and a test method for grassed swales. The device comprises a runoff generating device, a runoff flowing device, a runoff collecting device and a monitoring device, wherein the runoff flowing device comprises a V-shaped slot and an angle adjusting structure for adjusting included angles between the longitudinal slope of the V-shaped slot and the twoside faces of the V-shaped slot; the two side faces of the V-shaped slot are provided with a plurality of sampling holes; the bottom of the V-shaped slot is provided with a supporting structure; the V-shaped slot is filled with soil; and the surface of the soil is provided with a surface treatment layer. Testing water with different contaminant concentrations is prepared and different hydraulic loads and flow rates are set according to the purposes of the tests; and the influence of different earth surface measures on the utilization efficiency of the grassed swales and the runoff contaminantregulation can be known from the observation of soil moisture and the monitoring of surface water quality and contaminant concentration of soil solution. Thus the device and the method have great significance for water conservation and municipal rainfall runoff contamination.

The invention discloses a tree root type basement. The tree root type basement comprises at least two basement units located under an upper-layer building, a connecting layer between any two adjacentbasement units is a natural soil layer, and the basement units comprise basement bodies of a multi-layer structure and anti-seepage structures surrounding the side walls and bottom plates of the basement bodies. According to the tree root type basement, the basement is divided into a plurality of small basement units occupying smaller area in a partition mode, the basement units are located underthe upper-layer building, the natural soil layer is arranged among the basement units, the basement units are connected with the upper-layer building and a traffic core, the functions of the basementinclude but are not limited to an equipment room and a stereo garage. By the adoption of the root type basement, the soil layer around the building can give full play to the permeation effect and themoisturizing effect, the direct surface runoff path around the building is shortened, runoff pollution is reduced, and the pressure of a drainage pipe network in an urban core area is effectively reduced.

The invention provides an ecological brick and an ecological brick system.The ecological brick comprises a brick body, the brick body is of an annular structure and comprises a first side edge, a second side edge, a third side edge and a fourth side edge which are sequentially connected, and the outer contour of the brick body is rectangular; the middle position of the brick body is of a through hole structure, and the center of the through hole structure coincides with the center of the brick body; the first side edge is parallel to the third side edge, and the upper surfaces of the first side edge and the third side edge are respectively provided with a water guide groove; sawteeth are arranged on the bottom faces of the first side edge, the second side edge, the third side edge and the fourth side edge respectively, and plug-in grooves are formed in the middle positions of the upper surfaces of the first side edge, the second side edge, the third side edge and the fourth side edge respectively. The outer contour of the brick body is rectangular, so that the brick body is convenient to assemble; sawteeth on the bottom surface of the ecological brick are mutually meshed with the slope surface, so that the brick body can be prevented from sliding down and the durability of the brick body and the interlocking plug-in can be improved; rainwater is intercepted and guided into the vegetation part in the middle of the brick body, and rainwater runoff pollution is reduced.

The present invention discloses a low elevation greenbelt rainwater regulation scheduling pool and a distributed rainwater regulation scheduling pool system. The distributed rainwater regulation scheduling pool system comprises a low elevation greenbelt (1), a rainwater overflow well (2) and a rainwater regulation scheduling pool (7), and water storage, drainage and supply which are integrated with a rainwater pipe network or a sewage pipe network are achieved. Compared with the prior art, rainfall runoff and flood detention can be effectively adjusted, runoff pollution can be reduced, and purification, storage and utilization functions of rainwater are fulfilled; and the system is tightly combined with the rainwater and sewage pipe networks of a city, the problems of urban inland inundation caused by rainstorm, the runoff pollution caused by rain wash, and rainwater resource utilization are solved, water storage is scheduled according to drainage ability of drainage pipelines, an important means is provided for sponge urban construction, and the system has outstanding social, environmental and economic benefits.

The invention discloses a saline-alkali region water resource regulation and storage utilizing system containing storage and permeation pipes. The saline-alkali region water resource regulation and storage utilizing system comprises a soil body and water storage wells; the soil body comprises a planting soil layer, a permeable membrane layer, a water storage layer, waterproof layers and a saline-alkali soil layer which are sequentially arranged from top to bottom; a trench protruding into the saline-alkali soil layer is formed in the lower surface of the water storage layer and internally provided with a concealed conduit; the water storage wells are formed in the soil body at intervals; cobble ditches are formed in the upper surfaces of junctions of the planting soil layer and structuressuch as surrounding roads or squares, and fully filled with cobbles; and a water collecting opening is formed in the surface of the planting soil layer, the water storage pipe is arranged below the water collecting opening of the planting soil layer, the lower part of the water collecting opening communicates with the water storage pipe through a pipeline, and the side of the water storage pipe isprovided with the multiple permeation pipes. According to the saline-alkali region water resource regulation and storage utilizing system, rainwater collected into the planting soil layer after precipitation can be very effectively collected, and salt return of the saline-alkali soil layer to the planting soil layer is avoided; and the greening elevation of saline-alkali land can further be lowered, and the earth volume is decreased.