336results about How to "Reduce runoff" patented technology

The invention relates to a cement concrete permeable brick, a cement concrete permeable road and production methods thereof. At present, most of urban construction adopting the rigid hardened ground has the problems of dust blowing at a fine day, water accumulation and impermeable ground at a rainy day, no groundwater level supplement, no relief of urban heat island effect, and the like. The invention aims to develop a cement concrete permeable brick, a cement concrete permeable road and production methods thereof. The cement concrete permeable brick is formed by pressing and molding a base material layer and a surface material layer, and both the base material layer and the surface material layer contain cement, sand, stone, water adsorbing resin, asphalt powder, diffusant and a water reducing agent. The production method of the permeable brick is realized by molding the permeable brick by a computer full-automatic building block forming machine; and the production method of the cement concrete permeable road is realized by directly pressing the cement concrete permeable road through a road roller. The invention can achieve the aims of water adsorption, water retention, permeability and practicability, can be widely used for a highway, an airport runway, a roadway, a footway, a square, garden construction, and the like and solve the problem of road icing.

The invention provides a river bank ecological restoration device and method suitable for mountain river characteristics. The device comprises ladder stone cages and a backfilling soil layer or ecological bags, wherein the ladder stone cages are arranged on the river bank slope, and the backfilling soil layer or the ecological bags are arranged in a gap between the ladder stone cages and a river bank. Grass seeds are spray-sown to form a grass seed layer after slurry is poured into the ladder stone cages; a rubble base layer is arranged at the bottoms of the ladder stone cages; riprap bankets are laid at the outer sides of the bottoms of the ladder stone cages; herbaceous plants are sown on the ecological bags; and herbaceous plants, shrubs and arbors are planted on the river bank at the upper portions of the ladder stone cages. According to the river bank ecological restoration device and method suitable for the mountain river characteristics, the cost is low, the operation is easy and convenient, and actions of stabilizing the river bank and providing a porous habitat for microorganisms and aquatic organisms are achieved; and the riparian zone environment suitable for the plants to grow is built to restore phytocenosis so as to intercept and absorb nonpoint source pollution loads coming from peripheral housing estates and farms, and therefore an action of protecting river water quality is achieved.

The invention discloses a sponge city rainwater collecting, purifying and utilizing combination system which comprises a roof rainwater collecting area, a road rainwater collecting area, a greenbelt rainwater collecting area, a water collecting and sand settling tank, a purifying device and an impounding reservoir. An evaporation preventing layer, a soil layer, a water supply layer and a purifying layer are sequentially arranged on the roof rainwater collecting area from top to bottom. Transverse and longitudinal water collecting pipes are arranged in a bottom gravel layer of the road rainwater collecting area. An evaporation preventing layer, a soil layer, a rough sand layer and a purifying layer are sequentially arranged in the greenbelt rainwater collecting area from top to bottom. A filtering grid is arranged in the middle of the impounding reservoir, a water inlet hole and a water overflow hole are formed in the upper portion of the impounding reservoir, and a water drawing pump is arranged at the bottom of the impounding reservoir. The city environment can be greened and beautified, city rainfall flood pressure can be relieved, pollutants in rainwater can be absorbed, water resources can be saved, the rainwater utilization efficiency can be improved, and important reference significance is achieved on sponge city non-point source pollution control and city water shortage relieving.

The invention provides a novel vegetation shallow trench and a method for processing runoff rainwater by using the novel vegetation shallow trench. The novel vegetation shallow trench comprises a vegetation layer and a shallow trench, wherein the shallow trench comprises a shallow trench bottom (1) and a slope (2), and an infiltration/drainage pipe (3) is buried in the shallow trench bottom (1). When surface runoff rainwater (9) enters the shallow trench and flows along the slope, the runoff can be purified through retention, filtering of vegetation (7), absorption and permeation, a part of runoff rainwater accumulated at the shallow trench bottom (1) enters a filter material layer surrounding the infiltration/drainage pipe (3) through infiltration effect, and the filtered runoff rainwater is drained into a receiving water body or other processing facilities through the infiltration/drainage pipe (3). Since the infiltration/drainage pipe (3) is designed at the shallow trench bottom, the novel vegetation shallow trench is remarkably improved in transmission, filtering and infiltration capabilities, has the advantages of small floor space, compact structure and strong contaminant blockage capability, and thus is applicable to a rainwater runoff pollution control system for high-density areas of a city.

The invention provides an ecological restoration method for soil in a chemical industrial area. The ecological restoration method includes the following steps that pollution indexes of the soil in the chemical industrial area are detected; deep ploughing is conducted, clay not smaller than 30 cm under the ground surface is turned up, and the soil is loosened and watered to be wet; a compound microorganism bacterium agent is thrown into the soil with the dosage ranging from 30 ppm/m<2> to 50 ppm/m<2>; terrestrial invertebrates are thrown into the soil; plants are planted on the soil; the pollution indexes of the soil in the chemical industrial area are detected; and the above steps are repeated every other 30 days to 60 days till the quality of the soil meets the requirements. By means of the ecological restoration method for the soil in the chemical industrial area, biological diversity of the soil is restored, the quality of the soil is improved fundamentally, the self-purification capability of the soil is restored fundamentally, and the pollution phenomenon is effectively eliminated. The method is used for strengthening the self-restoring capability and the self-cleaning capability of the nature, and meanwhile the ecological restoration method has the beneficial effects that the running cost is low, and the pollution treatment effect is good.

A combined cultivation method for water and soil conservation for sloping farmlands relates to cultivation methods for water and soil conservation and solves the problem that using the single cultivation technique for holding water is unsatisfactorily effective. The combined cultivation method includes: firstly, adjusting ridges of sloping farmlands on downward slopes and inclined slopes under ridge plowing adjusted into transverse slope ridges, and adopting contour farming and belt planting; secondly, building ridges, and planting protective plant belts on the ridges; thirdly, subsoiling forfarming; fourthly, performing furrow damming; and fifthly, performing no-tillage conservation tillage. Furrow subsoiling and furrow damming are technically combined and integrated according to soil and weather characteristics of a black soil area, so that water and soil loss is reduced or avoided for sloping farmlands to the greatest extent, water and soil are conserved, water utilization rate isincreased, and crop yield is increased evidently. By the method, soil saturation and infiltration speed ratio is increased by 24.1% in processing treatment, water utilization rate is increased by more than 15%, crop yield is 30kg per mu, and 100 Yuan per mu is increased..

The invention discloses a rainwater garden system for community rainwater flow diversion, peak clipping and ecological purification. The rainwater garden system comprises a community roof rainwater flowing-through facility, a reverse U-shaped buffer flow division pipe, a green land rainwater garden facility and a rainwater well, wherein the community roof rainwater flowing-through facility is connected with the green land rainwater garden facility through two paths; one path is the direct connection with the green land rainwater garden facility, and the other path is the connection with the green land rainwater garden facility through the reverse U-shaped buffer flow division pipe; and the green land rainwater garden facility is also connected with the rainwater well. The reverse U-shaped buffer flow division pipe is used, and a water storage layer, a covering layer, a planting layer, a transition layer, a filling material layer, a water discharge layer and matched pipelines which are sequentially and downwards provided by the downward green land rainwater garden facility from the ground are used, so that the rainwater garden system has the effects of early-period rainwater processing, rainfall runoff flow division, peak clipping and purification regulation and control.

The invention discloses a rainwater penetrating-discharging integrated ecological system, which comprises penetration inspection wells distributed on the ground of residential areas, penetration drainage ditches which are in a network shape and connected on all the penetration inspection wells and transversal connecting pipes between the penetration inspection wells and the penetration drainage ditches. Permeable holes are formed on the side walls and at the bottoms of the penetration inspection wells, a gravel layer is laid in the peripheries of the penetration inspection wells, a layer of permeable geotextile is laid in the peripheries of the gravel layer, wellheads of the penetration inspection wells are provided with dirt-catching and sewage-blocking baskets therein and permeable well covers are covered on the wellheads; permeable holes are formed on the side walls of the penetration drainage ditches, the peripheries of the penetration drainage ditches are provided with the gravel layer, the peripheries of the gravel layers are provided with a layer of permeable geotexile, and the top parts of the penetration drainage ditches are covered with grate covers of the drainage ditches. The invention has the advantages of simple design principle and convenient construction. The invention can save water consumption, reduce rainwater runoff in a city and relieve municipal drainage pressure, thereby not only realizing early draining of rainwater, purifying water, but also realizing the penetration of rainwater, conserving underground water source and beautifying the peripheral ecological environment.

The invention relates to a planting method for crops, in particular to a wide-row flat planting protective tillage planting method for maizes. The planting method comprises the following seven steps of: performing land preparation, sowing, rolling after sowing, weeding by pesticides, subsoiling mechanically and performing side deep fertilizing, preventing and controlling diseases and insect pestsand harvesting mechanically. In the planting method, the conventional 60-centimeter uniform ridge planting mode is changed into a flat planting mode of 80-centimeter row pitch and 20-centimeter row spacing, and ventilating and light-transmitting space of the crops is increased; the conventional shallow intertillage and shallow fertilization mode is changed into a mechanical deep scarification anddeep topdressing mode, namely the conventional three-shovel three-time intertillage management and shallow fertilization operation is changed into one-time deep scarification and deep topdressing operation, so operation links are reduced, and the production cost is reduced; the conventional sowing mode is changed into a zero-tillage sowing mode, so the evaporation of soil moisture is reduced, andthe capacity of drought resistance and soil moisture conservation is improved; the conventional mode that harvested low stubbles are crushed to return to a field into a mode that mechanically-harvested high stubbles are rotten naturally to return to the field; and before sowing, seeds are processed by using a plasma seed processing technology to improve the germination percentage of the seeds.

The invention discloses a multidimensional ecological drainage system for intercepting and controlling separate system rainwater pollutants into a river. The system is arranged on one side of a river bank and takes a stair-step shape along the river bank; rainwater in pipe networks flows into a first-stage water drop platform by rain-water pipes, enters a storage pond, flows into an ecological buffer zone by a second-stage water drop platform, and lastly flows into a plant growth detention pond; and the first-stage water drop platform and the ecological buffer zone are slope-shaped, and plants are planted in the plant growth detention pond. The system not only ensures drainage, but also reduces the risk that rainwater polluted run-offs directly flow into the river, reduces impact and damage to water quality of the water body in a river channel, effectively controls the pollutants in the river, effectively improves the water environment, and enhances the urban water landscape value.

The invention discloses a special water retention fertilizer for sweet potatoes and a preparation method thereof. The special water retention fertilizer for sweet potatoes is prepared from the following raw materials in parts by weight: 7-12 parts of available nitrogen (N), 6-9 parts of available phosphorus (P2O5), 20-25 parts of available potassium (K2O), 8-10 parts of sodium polyacrylate, 2-5 parts of polyacrylamide and 5-9 parts of bentonite. The special water retention fertilizer for sweet potatoes has the advantage of scientific nitrogen-phosphorus-potassium nutrient proportion, integrates both fertilizer and water, combines nutrition and water retention, and can enhance the water and fertility retention properties of soil and the water/fertilizer utilization efficiency of the sweet potatoes. When being spread as a base fertilizer at one time before sweet potato ridge forming, the special water retention fertilizer for sweet potatoes can promote the sweet potato root system to absorb water in the rooting and seedling stage, increase the growth rate of the sweet potatoes in the early stage, shorten the field ridge seal time of the sweet potatoes, and reduce the field moisture evaporation; and the contained nutrients are slowly released to prevent the stems and leaves of the sweet potatoes from vigorous growth and promote fruiting of the sweet potatoes, thereby enhancing the yield of the dry farming sweet potatoes.

The invention relates to a method for constructing a road runoff pollution control greening system. The method comprises the following steps: designing and constructing a greening pollutant intercepting system on a hardened road with a greening pollutant intercepting area besides, and setting an ecological filter trench between a motor way and a sidewalk to form a pollutant intercepting green belt; filling the pollutant intercepting green belt with filter materials, setting a planting layer on the top of the pollutant intercepting green belt, and setting a grass planting trench on one side, which is close to the green belt, of the sidewalk, wherein fillers fill the grass planting trench, and a planting layer is arranged on the top of the grass planting trench; and setting a retention pond adjacent to the grass planting trench, setting a turf slope at the periphery of the retention pond, and forming a rainwater retention area in the middle of the pond, wherein aquatic plants are planted in the rainwater retention area. Compared with the prior art, the method has the advantages that over 30 percent of pollutants can be removed, and water can be purified.

An apparatus for producing a foam surfactant suitable for a bovine teat dip comprises means for air pressurization of a surfactant solution containing a germicide, disinfectant, biocide, etc., means for passing the air-surfactant mixture through a flow or line mixer to a foam holding cup adjacent the teat area and means for expanding the mixture in the holding cup to produce an adherent surfactant foam product with reduced run off, which both protects and reduces infection of the teat and surrounding udder area.

A method for applying a soil stabilizer, to soil wherein the soil stabilizer is intermixed, impregnated, and/or applied to solid carriers.

A soil adherent pellet is detailed that includes a soluble calcium ion source, a magnesium ion source, or both present in an amount ranging from 15% to 99.9% by weight of a total dry weight of the pellet and a binder present in an amount ranging from 85% to 0.1% by weight of the total dry weight of the pellet. The pellet having a mean pellet domain size and a pellet surface. The soil adherent pellet is well suited for flocculating clay within the soil and delivery of an active ingredient with reduced runoff compared to prior art broadcast particles. A soil adherent pellet is also provided having a soluble calcium and/or magnesium ion source that is polycrystalline and carries therewith an active ingredient.

The invention relates to a road surface deceleration strip. The road surface deceleration strip comprises a shell, wherein the front end of the shell is hinged with a rotating shaft fixed at the upper end of the slope road surface, a spring is installed at the tail end of the shell and is sheathed on a limiting pile fixed at the lower end of the slope road surface, a water containing bag is arranged in the shell, the bottom of water containing bag is tightly attached on the road surface, the top of the water containing bag is tightly attached on the inner surface of the shell, a water inlet board is arranged at the front end of the water containing bag, a water inlet is formed in a water containing bag body behind the water inlet board, a water inlet membrane section is suspended at the top of the inner wall of the water inlet, water drain holes are respectively formed in the two sides of the tail part of the water containing bag, and are in butt joint with a water drain pipe, and a water outlet membrane section is suspended at the tops of the outer wall of the water drain holes. The road surface deceleration strip has the following advantages that running water on the road surface can be stored and held, the running water amount of the road surface is reduced, meanwhile, the running water on the road surface can be transferred to green belts on the two sides of a road, the plant process of the running water during the initial period can be implemented, and the surface source pollution load of the road surface can be reduced.

The invention discloses a tree pool device with rainwater infiltration, storage and purification functions.According to the tree pool device, a pretreatment water tank (8) located below a rainwater perforated strainer (9) at the edge of a locomotive pavement and a collecting water tank (4) located below a pedestrian pavement are installed in a substrate layer (15), overflow holes (12) communicated with the substrate layer are formed in the upper portion of the pretreatment water tank (8), slow infiltration holes (14) are formed in the lower portion of the pretreatment water tank (8), and the top of the pretreatment water tank (8) is further provided with an overflow pipe (10) communicated with a municipal rainwater pipe (18); the bottom of the collecting water tank (4) is communicated with a perforated pipe (3), and a drainage pipe (6) is installed on the side wall of the collecting water tank (4) and communicated with the municipal rainwater pipe (18) laid in an original soil layer (17).The tree pool device with the rainwater infiltration, storage and purification functions has the advantages that the water infiltration and water storage capacities of a tree pool are enhanced, the function of drainage after purification is achieved, the runoff peak value is delayed and reduced, the runoff volume is reduced, and the requirements of vegetation maintenance and subsequent rainwater reuse are met.

The invention discloses a municipal road drainage system and a drainage method. One part of rainwater is converged along a road surface to a municipal road gully and then enters a municipal rainwater pipeline; the other part of rainwater flows to a greenbelt between a motor way and a non-motor way through holes in curbs on two sides of the motor way; after the rainwater entering the greenbelt is filtered and purified by the greenbelt to infiltrate downwards, excessive rainwater flows into a permeation tube of a permeation drainage pipeline system to infiltrate downwards for replenishing the underground water, and the rainwater which does not infiltrate downwards quickly due to high rainfall intensity is drained through an overflow pipe of the permeation drainage pipeline system to the municipal rainwater pipeline under the motor way; the rainwater directly entering the municipal rainwater pipeline through the municipal road gully and the rainwater entering the municipal rainwater pipeline through the overflow pipe of the permeation drainage pipeline system are jointly drained to a nearby water body through the municipal rainwater pipeline. According to drainage performances of the greenbelt and the permeation drainage pipeline system, purification of initial contaminated rainwater, deceleration of peak discharge, relief of urban water logging, replenishment of underground water and the like are realized.