4823 results about "Stormwater" patented technology

In the processes for treating municipal sewage and storm water containing biosolids to discharge standards, biosolids, even after dewatering, contain typically about 80% water bound in the dead cells of the biosolids, which gives biosolids a negative heating value. It can be incinerated only at the expense of purchased fuel. Biosolids are heated to a temperature at which their cell structure is destroyed and, preferably, at which carbon dioxide is split off to lower the oxygen content of the biosolids. The resulting char is not hydrophilic, and it can be efficiently dewatered and/or dried and is a viable renewable fuel. This renewable fuel can be supplemented by also charging conventional biomass (yard and crop waste, etc.) in the same or in parallel facilities. Similarly, non-renewable hydrophilic fuels can be so processed in conjunction with the processing of biosolids to further augment the energy supply.

The invention provides a method for ecological remediation on an acid tailing pond. By removing acids from soil, and by laying nonwoven cloth and a sealing layer, good partitioning is achieved, and byfurther laying a water reservation layer and a coated seed layer, the purpose of re-greening an acid tailing pond is achieved. The method has the beneficial effects that rainwater can be reserved tothe maximum extent, the sealing layer is capable of preventing the rainwater from infiltrating into tailings, the problems of underground water and ground water pollution can be substantially solved,the construction method is simple, and the construction cost is low; by using a seed coating technique, a set of rapid nursery stock breeding technique is formed, a stable ecological remediation system is cultured, the target of completely re-greening woody plants within 90 days is achieved, and environment problems of acid tailing ponds are solved for good.

The invention discloses a rock slope ecological protection afforestation substrate. The substrate is prepared by evenly mixing a mixture of mixed and fermented straw, cattle manure, edible fungus refuse (the waste after the edible fungus production), sludge and organic matter fibers, compound fertilizer, a soil moisture holding agent, a binding agent, attapulgite powder and a pH regulator. The rock slope ecological protection afforestation substrate is used to carry out the spray seeding and greening on the exposed rock slope, the discarded mine and the mountain gap, and can maximally restore the vegetation ecology in a shorter period, thereby reaching the aims of afforestation and slope protection. The substrate can supply a reasonable physical structure and nutrient contents needed by the growth of the vegetation, and ensure the sufficient cohesion force between the substrate mixture on the slope surface and the rock slope so as to ensure that the vegetation on the slope surface can take root and grow well on the rock slope. The substrate can ensure the stability of the substrate mixture on the slope surface so as to resist the rain erosion. The substrate can rapidly seal the slope surface and prevent the slope surface from flaking off due to efflorescence together with the vegetation.

Methods and modules for use in a modular assembly are disclosed for retaining or detaining storm water beneath a ground surface. A module comprises a substantially horizontally disposed deck portion and at least one substantially vertically disposed side portion extending therefrom. The deck portion and side portion have respective end edges, and the side portion has bottom edges. The side portion and the deck portion define a longitudinal channel which is open at least at an end of the module. The side portion has at least one opening therein and defines a lateral channel in the module. The longitudinal and lateral channels are in fluid communication with one another. Each channel has about the same cross section and extends upwardly from the bottom edges to allow relatively unconstrained flow in the longitudinal and lateral directions.

A rain gutter cover system (10) constructed in accordance with the principles of a preferred embodiment of the present invention is disclosed. The system (10) is configured for directably collecting rain water running off of the roof (R) of a building (B) while substantially preventing undesired debris from entering the gutter (16). The system (10) broadly includes a gutter assembly (12) and a cover assembly (14) coupled to, and covering, the gutter assembly (12). The cover assembly (14) includes a one piece screen (20) and a plurality of fluted perforations (22) formed in the screen (20). The fluted perforations (22) are each particularly configured to draw water through the screen (20) without allowing undesired debris through the screen (20) and each includes a channel (40) recessed into the screen (20) and a corresponding hole (42) defined in the downhill end of the channel (40). A valley segment (210) of the system is also disclosed and includes a plurality of bull-nose ledges (212, 214, 216, 218 and 220), each guarding a plurality of fluted perforations (222) along the valley of a roof.

A rain gutter system for a vehicle hood includes a vehicle hood having an opening. A rain gutter is mounted to the hood underneath the opening. At least one contoured area is on at least one side of the rain gutter, wherein there is a space in between the contoured area and the hood, such that water may flow through the hood opening, along the rain gutter and out of the rain gutter at the space. The rain gutter may include a series of grooves or another pattern molded into the gutter. The hood may be made of a moldable material, with threaded members being molded into the hood. The rain gutter may be mounted with bolts or screws at the threaded members. A grill may be associated with the opening. The rain gutter may be molded and may be made of a moldable material, such as fiberglass, another composite, or a polymer.

A basement engineering waterproof and drainage method is provided. The wall footing of the outside wall in basement engineering is embedded in watertight or micro-watertight soil rock layer or cement soil layer. The wall footing intercepts water by a thin-part structure. The cushion of the basement engineering soleplate and the falling layer of the top board are composed of combined water-proof layers. The late poured band, the movement joint and the horizontal construction joint at the lower part of the outside wall are treated by a water-proof structure combined with waterproofing measures. The basement engineering is provided with a drainage system. The groundwater and surface water at the soleplate are drained into city drainage pipelines via a soleplate part of the drainage system. The rainwater of overburden layer bottom of the top board is then drained into city drainage pipelines via the indoor part of the drainage system. The invention is designed by adopting a one-body method of arranging the basement engineering waterproofing, drainage and anti-floating as well as underground engineering space enclosing structure and pipelines, thereby shortening the construction period, reducing the engineering cost, increasing the durability and reliability of underground building space enclosing structure and waterproof layer as well as pipelines.

The technological process of treating papermaking effluent for reuse based on membrane integrating technique has membrane bioreactor, continuous membrane filter and reverse osmosis unit integrated for high efficiency treatment of papermaking effluent. The papermaking effluent treating process includes drum filtering and flocculating deposition to eliminate most suspended matter and colloid matter, anaerobic and aerobic biochemical treatment, filtering in membrane separating element, continuous membrane filtering, and treating with reverse osmosis membrane to reach the papermaking water standard. The present invention is especially suitable for treating hard-to-treat papermaking effluent.

A roof system designed to retain water during storms and release it slowly over a period of time includes a polymeric water impervious membrane covered with a drainage board in turn covered with a water retention mat. The water retention mat and drainage board are held in position by ballast, preferably gravel. The mat is designed to retain at least about 25% of a one-inch per hour rainfall and release it gradually over 2 to 3 hours, thereby reducing rain runoff during storms and reducing the load on a storm sewer system

The invention relates to an in-situ rain leaching repair system for contaminated soil. The in-situ rain leaching repair system at least comprises three parts, namely a rain collection part, a leaching repair part and a waste water treatment part, wherein the rain collection part is provided with water guiding pipes, a water collecting tank and canals, the leaching repair part is provided with an observation well, water collecting pipes and plants planted for the soil phytoremediation, the observation well is built in a middle-upper layer of contaminated soil, and the water collecting pipes are in the middle-lower layer; and the waste water treatment part is provided with a filter tank, a microorganism putting tank, an electric separation tank, a wind power generating set and the like, leaching waste water is firstly filtered by the filter tank, and is then repaired by the microorganism putting tank, and finally, the leaching waste water passes through the electric separation tank to process heavy metal so as to obtain the purified liquid. The in-situ rain leaching repair system establishes a complete contaminated soil simulated repairing system for the soil in an aeration zone, and combines repair technologies of leaching, plants, microorganisms, electric separation and the like. The in-situ rain leaching repair system has the characteristics of energy conservation, emission reduction and no secondary pollution, and is suitable for repairing the soil in a large-area aeration zone with little pollution.

The invention provides a road pavement draining method and a drainage structure system. The road pavement draining method is characterized in that water falling on a lane vertically passes through a lane water-permeable surface layer, arrives at a waterproof bonding layer preventing water penetration, and enters into a water-permeable drainage system located at outer sides of drainage curbstones by a cross slope and the drainage curbstones located at outer sides of the lane; the bottoms of the drainage curbstones are provided with water-permeable curbstone bases; the water-permeable drainage system comprises a broken stone blind drain drainage system arranged at the bottoms and the outer sides of the water-permeable curbstone bases; the bottom of the broken stone blind drain drainage system is provided with a longitudinal drainage water-permeable pipe; and most of the water discharged into the water-permeable drainage system at the outer sides permeates into soil at the outer sides and forms ground water, and the rest of the water passes through the longitudinal drainage water-permeable pipe in the broken stone blind drain drainage system and then is discharged into a municipal pipe. The road pavement draining method solves the problem that rainwater on a drainage bituminous pavement is directly discharged into the municipal pipe, and has functional advantages of good safety, ecological benefits, energy saving and good economical efficiency.

A river course ecological treatment system essentially comprises a plurality of ecological biological water purification systems and a plurality of plastic retaining dams disposed along a river course, and at least one damp land ecological water purification system disposed beside the river course. The plastic retaining dams separate the river course into several retaining regions. The ecological biological water purification systems purify the water in the retaining regions by microorganism purification. Afterward, the water purified by the ecological biological water purification systems is introduced into rainwater channels of the at least one damp land ecological water purification system. After being purified by aquatic plants in the at least one damp land ecological water purification system, the water returns to the retaining regions the downstream portion of the river course. Therefore, a river improvement system capable of performing both step-by-step treatment and joint treatment is effectuated.

An intelligent irrigation rain sensor for use in an irrigation system comprises a rain sensor unit and a sensor control unit. The rain sensor unit has a rain catcher reservoir with an open top for receiving rainwater. The rain catcher has an internal volume for holding water and tapers into a funnel with an opening for metering equally sized round water droplets at a steady-state drip rate. At least one droplet detector is positioned directly below the funnel opening that contacts the water droplets from the funnel. The droplet detector includes detection electrodes for sensing a change in an electrical property being monitored by a detection control in the sensor control unit. Each droplet detected may be counted and the droplet count retained in a memory, or excluded from counting based on certain factors, such as the drip rate between droplets from the funnel opening. Upon exceeding a rain threshold amount over measurement time period, the intelligent irrigation rain sensor issues a rain signal to the irrigation controller. The intelligent irrigation rain sensor issues a corresponding dry signal to the irrigation controller after a drying period has elapsed. The present intelligent irrigation rain sensor may issue consecutive rain signals and accumulate drying periods for each, up to a predetermined limit, before issuing a single dry signal to the irrigation controller.

The invention relates to an automatic urban rainfall runoff sampler characterized by comprising a tank body, a catchment structure, a sampling chamber and an instrument control room, wherein the tank body is cuboid; an openable upper cover constitutes the upper part of the tank body and is fixed with the lower part of the tank body via fasteners; hooks are arranged at four corners of the upper cover of the tank body; the catchment structure comprises a detachable catchment hopper arranged outside the tank body and an automatic opening/closing device thereof; the sampling chamber consists of a water guiding pipe, a water inlet pipe, a rotating shaft, a sampling base, a sampling ring and a water discharging pipe; the instrument control room is located on the right side of the tank body and separated from the sampling chamber; a rainwater sensor, a stepping motor and a storage battery are placed inside the instrument control room; and the instrument control room is further provided with an openable door, so as to facilitate the device maintenance and repair. The automatic urban rainfall runoff sampler of the invention has the characteristics of high automation level, compact structure, small size, high portability and convenient management. Therefore, the invention is applicable to the collection of rainfall runoff in the urban wayside sewers and other places for the collection of rainfall runoff or water flow.

The invention discloses a rainwater collection storage utilization process. The process comprises the following steps of: collecting rainwater on a roof, intercepting pollutants in the rainwater, performing initial rainwater discarding, regulating and storing the rainwater, filtering the rainwater, disinfecting the rainwater, and feeding into a recycling water tank for later use, wherein in the step of initial rainwater discarding, the rainwater of which the pollutants are intercepted is introduced into a rainwater discarding pool, dirt deposited on the lower part of the rainwater discarding pool is discharged from a drain pipe, and water on the upper part of the rainwater discarding pool is introduced into a rainwater regulation and storage pool for regulation and storage; in the step of regulating and storing the rainwater, the water in the rainwater regulation and storage pool is regulated and stored, and when the rainwater stored in the pool is excessive, the excessive water is introduced into a municipal drainage system; and in the step of filtering the rainwater, the rainwater is filtered by a multi-medium filter. By the process, most of pollutants in rainwater runoff can be controlled, and the load of subsequent treatment equipment is reduced; the water quality of effluent is higher than that of effluent of the conventional filter, and the turbidity of the effluent is less than 4; and when the process is implemented, a small space is occupied, and during use, the process is not limited by environmental conditions.

Methods and systems are disclosed which provide for the purification of effluent from a septic system or natural water from rainwater or stormwater collection devices for the storage and reuse of water. The purified water may be supplied to water applications, such as a return conduit to a home for potable or graywater usage. The distillation unit may be powered by a local power independent of a municipal power grid and which may employ sustainable energy mechanisms. The distiller residue may undergo a volume reduction process, such as evaporation, coagulation, electrocoagulation or microfiltration. The purified water may be stored in a holding tank with sensors to monitor the water quality and water level within the tank. Alarms, release valves or relief valves may be activated in response to such monitoring.

A system and/or method for sensing the presence of moisture (e.g., rain) and/or other material(s) on a window such as a vehicle window (e.g., vehicle windshield or backlite). In certain example embodiments, a capacitor-based system and/or method is provided for auto-correlating sensor data to determine the existence of a material on the window, and then cross-correlating sensor data to identify the type and/or amount of that material (e.g., rain). This data may be used to actuate and/or deactivate a vehicle's wiper(s), and/or adjust wiper speed. In certain example embodiments, the sensor may include an array of at least two capacitors. In certain example embodiments, the system and/or method may perform check(s) to enhance the accuracy of the detection by comparing, for example, the sign of autocorrelation values, maximum autocorrelation values, and/or gradients of autocorrelation values

The present invention relates to a rainwater-collecting permeable concrete pavement system. It is characterized by that said pavement structure includes rammed earth layer whose thickness is greater than 10mm, general concrete base layer whose thickness is 80-100 mm, permeable concrete structure layer whose thickness is 100-150 mm and permeable concrete face layer whose thickness is 40-60mm from bottom to top. Said pavement system is adjacent to green belt, under the green belt a rainwater-collecting pool is set, and the bottom portion of said rainwater-collecting pool is equipped with a submersible pump. Along the length direction of said pavement structure two sides of said pavement system are respectively equipped with a rainwater-collecting channel, the outlet of said submersible pump is connected with pipe network, and said pipe network is distributed in the green belt.

The present invention relates to a protective barrier adapted to fit over a roof vent, particularly an off-ridge roof vent, which provides for ventilation and also restricts pass-through of wind-driven rainwater. The barrier comprises two parallel orifice plates, such as louvered panels with passages, that are spaced apart a desired distance by a stagnation zone, so that the device is effective to reduce or eliminate of passage of wind-driven rainwater to the interior of the vent. In various embodiments, the number of louvers in the more outward-disposed orifice plate is greater than the number of louvers in the more inward-disposed orifice plate.

Slope surfaces of land can be eroded by rain and wind. It is necessary to vegetate a bared slope surface of land for the purpose of erosion control and environmental conservation. The present invention provides a vegetation base soil composition and a method of growing vegetation on a sloped surface for erosion control and vegetating on cut rock slope surface, such as weathered rock surface and barren soil surface. The vegetation base soil includes peat, bio-solids formed by the treatment of urban sewage, for example water treatment plant sediment, woodchip, bark, animal waste compost and clay or loam. The vegetation base soil with a microbes active material, a root activation fertilizer, an adhesive material and seeds are applied over a mesh that is secured over the sloped surface. Plants are grown in the layer of vegetation base soil.

An input chamber receives runoff water to be cleaned. Part of the way up the chamber wall is a restricted outlet which feeds a system for cleaning the water. At a still higher elevation another opening allows runoff water to flow to an extended detention chamber. Near the top of the chamber is an outlet pipe. A vertical baffle in front of the outlet cleans water that flows under the baffle on its way to the outlet. When the incoming flow rate is very high, water passes over the baffle to the outlet.

A constructive water resource recycling method is characterized in that great-sized water reservoirs, each of which has a drainpipe provided above for connecting to the ground surface, are buried in the underground soil; deep drainage trenches are selectively provided under the macadam stratum; the side walls of the deep drainage trenches have water inlets such that the rain can be led down to the soil via drainage bands, while trenches are covered by trench covers; the water contained in the water reservoirs can be drawn by water-drawing pipes to the ground surface for further utilization through a water pump of natural power; the great-sized water reservoirs are covered by soil and macadam stratum, and then an instantly permeable layer which is composed of macadam, pebbles or sand; finally, the instantly permeable layer is covered a concrete pavement and then drilled through to complete a constructive permeable pavement, thereby efficiently recycling the rain for fully utilization.

The invention integrates the functionality of: kerbs, gutters, pathways, into a surface accessible networked utility ducting system and a a rain and run-off water management system.

It is comprised of a base section formed a combination of one or more open topped utility access channels, an open topped water catchment channel, a slopped flange and one or more open sided access and or open topped feeder line distribution channels.

The invention includes features for the isolation of electric power channels from contact with other utilities such as gas, water, or communications.

The invention includes features for, integration with existing stormwater systems such as overflow points.

The invention provides utilities access pathway all the way to an end users premises with minimal need for digging or disturbance of footpaths or paved surfaces this is a major improvement upon the prior art which tranforms the economics of surface accessible utility ducting systems.

The invention includes covers, which are interchangeable, may take various forms, such as a pavement and kerb, a driveway ramp or a wheel chair access ramp. This allows the invention to be economically adapted to changes in kerb requirements as changes to the pathways and kerbs occur along their length and as requirements change over time, this solves the problems associated with the prior art which can not be readily adapted to all the variations found in kerbs and gutters along the length of the kerb and pavement or as they occur over time.

The invention enables rain and run-off water to be isolated from contamination and managed to preserve its value and usefulness.

The invention lowers the cost of, and, increases the speed, of new service deployment thereby overcoming the major economic barriers to market entry of new distributed utility services.

The invention is to be manufactured in most cases as precast modules. The channels, lids, access boxes are linked by flexible interstitial joints which enable the system so formed to change direction to conform with the contours of the landscape in which it is located. In most cases the material of construction will be a dense, reinforced material such as concrete. When so constructed the invention will resist the effects of earthquakes, cyclones, flooding, tornados, and tsunamis.

The invention belongs to the technology of in-situ leaching mining, and particularly relates to an ion-adsorption-type rare earth in-situ leaching method and a leaching system thereof. A non-excavation directional drilling machine is used for carrying out mechanical drilling of injection wells and liquid-collecting roadways instead of using manual excavation, The quantity of the injection wells is decreased, the injection wells are changed into curved pipes and are buried in a mine body. Therefore, the phenomenon that rainwater infiltrates into channels is reduced, a landslide triggered by the in-situ leaching is prevented, the construction is simple, the construction cycle is short, the cost is low, the safety performance is improved, the waste earth discharge is reduced, and the ecological environment is protected.

The invention relates to the technical field of rainwater collection and processing, and discloses a novel rainwater retention infiltration system. The novel rainwater retention infiltration system comprises a pre-processing tank and a retention infiltration tank, wherein the pre-processing tank is arranged at the outer side of the retention infiltration tank; the pre-processing tank and the retention infiltration tank are separated by virtue of a perforated partition board; gravels are kept in the pre-processing tank; the retention infiltration tank is sequentially provided with plants, a water storage layer, a coverage layer, a planting soil layer, a packing layer, an isolating layer and a gravel layer in a thickness direction; a drainage pipeline is arranged in the gravel layer of the retention infiltration tank; an overflow pipe is vertically arranged in the retention infiltration tank; one end of the overflow pipe communicates with the drainage pipeline and the other end is exposed out of the retention infiltration tank; and a reoxygenation pipe is arranged in the packing layer. With the application of the system provided by the invention, stormwater runoff pollution load can be effectively reduced, rainwater runoff volume and peak can be diminished and the problem that the system gets blocked can be effectively prevented; and the system is simple in structure, low in maintenance cost, simple and feasible in implementation and broad in application scope.

The invention relates to a sewage in-situ purification system using a drainage ditch. The drainage ditch is divided into a treating ditch and a diverting ditch which are parallel to each other along the longitudinal direction; the front ends of the treating ditch and the diverting ditch are provided with diverting grooves; the front end of the treating ditch is provided with a grit chamber, and the tail end is provided with a sedimentation basin; a contact oxidation pond and an artificial wetland pond are arranged between the grit chamber and the sedimentation basin; and the grit chamber, thecontact oxidation pond, the artificial wetland pond and the sedimentation basin are spaced by a transverse partition wall. The invention can effectively carry out in-situ purification treatment to sewage by using ditch space, realize the continuous treatment and the purification to the sewage and enable the ditches to become a landscape harmonious with surrounding environment. The sewage in-situ purification system can carry out hydraulic drop oxygenation to the sewage by sufficiently using height difference variations inside the drainage ditch, reduce the cost of sewage treatment, does not generate secondary pollution and affect the flood discharge of the drainage ditch and can effectively intercept and remove high-concentration pollutants caused by the flush effect of initial rain.

The invention belongs to the technical field of municipal construction and particularly relates to an anti-blocking road draining device and an application method thereof. The anti-blocking road draining device comprises a rainwater strainer and is characterized in that the rainwater strainer is provided with elongated water inlets, a first shell is connected to the lower surface of the rainwaterstrainer, and a shifting mechanism is mounted in the first shell and connected with a power mechanism. The anti-blocking road draining device has the advantages that when the rain is heavy, the weightof rainwater can be converted into power to drive the shifting mechanism to work, the shifting mechanism can push aside impurities such as leaves covering the water inlets, water inlet blocking preventing and draining are achieved, and the device is energy-saving, good in draining effect, high in safety and the like.

Devices, apparatus, systems and methods for preventing backflow current problems which often have caused debris and litter to pass out of screen type baskets used in storm water treatment systems. A half size or full size pivoting panel at the input end of a basket screen system placed in a storm water treatment chamber can downwardly divert incoming storm water so as to prevent back flow currents from being formed. The pivoting panel can work well during high flow conditions. A half size or full size pylon located in the input end of the basket screen can split and divert incoming storm water to also prevent back flow currents from also being formed. The pylon can work well during low flow conditions. Also, both the half pivoting panel and the half pylon can both be used at the input end of the screen basket. Still furthermore a gap in the floor before the input end of the screen basket can allow for sediment coming to pass down and collect beneath the screen basket.

The invention discloses a pollution abatement method for a livestock and poultry farm. The method comprises the following steps of: separating feces from fence washing water and rain water at the source; carrying out solid-liquid separation on the feces and the sludge generated in each treatment procedure; conveying the separated liquid part to a plug flow anaerobic fermentation reactor or a liquid high-temperature aerobic fermentation reactor for liquid biological treatment, carrying out aerobic fermentation and filtration to get a liquid organic fertilizer; and conveying the separated solid part to a high temperature aerobic fermentation device, after fermentation, aging and deeply processing the solid part to get a solid organic fertilizer. Bad smell is exhausted after being processed in a biological deodorization filtering tower, and the filter material replaced from the biological deodorization filtering tower is considered as carbon source and conveyed to the solid aerobic fermentation device so as to be treated. Firstly, the fence washing water is treated by a grid impurity removal facility, after being treated by an SBR (Sequencing Batch Reactor Activated Sludge Process) biological reactor and medicated for flocculation and sedimentation, the fence washing water is drained after being purified by a wet land, or drained after being treated by aerobic fermentation reaction and filtering, and the sedimentary sludge and the solid substances under the grid fence are conveyed into a solid-liquid separation procedure so as to be treated. The method can be used for managing or beneficially using all the pollutants, and contributing the effort for establishing the resource-saving and environmentally-friendly society.

The invention provides a method for setting a city initial rainwater interception standard. The city overflow pollution event reduction efficiency and the rainfall pollution reduction efficiency are counted, and high-efficiency areas of the city overflow pollution event reduction efficiency and the rainfall pollution reduction efficiency are found; and required initial rainwater interception rainfall is obtained and enabled to meet requirements of the high-efficiency areas, the flood prevention standard and the water environmental capacity. According to the city initial rainwater interception standard set with the method, initial rainwater with higher pollutant concentration can be intercepted effectively, so that pollution loads of rainfall runoffs to the water environment are substantially reduced.