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2624 results about "Water conservation" patented technology
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Water conservation includes all the policies, strategies and activities to sustainably manage the natural resource of fresh water, to protect the hydrosphere, and to meet the current and future human demand. Population, household size and growth and affluence all affect how much water is used. Factors such as climate change have increased pressures on natural water resources especially in manufacturing and agricultural irrigation. Many countries have already implemented policies aimed at water conservation, with much success.
Irrigation water conservation with automated water budgeting and time of use technology
ActiveUS20110093123A1Improved wireless receptionMinimized overall profileSelf-acting watering devicesClimate change adaptationCurrent sensorTime of use
The present invention provides a multitude of embodiments for landscape water conservation with automated water budgeting or seasonal adjustment. Water budget automation may be implemented within an irrigation controller, by means of an add-on or a plug-in to the controller, or broadcast from a central location. The environmental data used for automated water budgeting may be historical including ambient temperature, wind, solar radiation, relative humidity, soil moisture, soil temperature, or evapotranspiration, or combinations thereof, or with a combination of current sensor data. The automated water budgeting may be accomplished with a percentage accumulation method which adjusts watering intervals and schedules, or on a daily percentage basis. In addition, government based restricted watering schedules may be combined within all the above embodiments to provide additional flexibility for water conservation.
Owner:HUNTER INDUSTRIES
Irrigation controller water management with temperature budgeting
ActiveUS7266428B2Easy and less-expensive to installEasy and less-expensive to and and maintainSelf-acting watering devicesClimate change adaptationAgricultural engineeringControl theory
The present invention provides methods for water conservation with AC, DC, or ambient light powered irrigation controllers without the use of complex ET (evapotranspiration) data or ET related service fees. Programming may consist of the operator entering a preliminary irrigation schedule, and entering the local zip code. The controller then periodically calculates a water budget by comparing current (non ET) local geo-environmental data with stored local geo-environmental data, and then modifies the preliminary schedule using the water budget. A number of embodiments are possible: stand-alone controllers with a temperature sensor attached directly to the microprocessor within that controller, or as a centrally placed CBM (Central Broadcast Module) which calculates a water budget percentage which is transmitted to one or more field controllers by wired or wireless means. Alternately, a TBM (Temperature Budget Module) that is separate from the controller is connected between the controller outputs and the valves, or mounted at the valves themselves. The TBM periodically calculates the ,water budget, monitors the controller outputs and adjusts the irrigation schedule based upon the water budget ratio. Because of its flexible capabilities with AC, DC, solar, or ambient light powered controllers, as a centrally broadcast water budget ratio in a wired or wireless configuration, or as an add-on to existing controllers or valves, its programming simplicity and close approximation to ET without its complications and cost, the present invention has the potential to save more water and minimize runoff than currently available ET methods.
Owner:HUNTER INDUSTRIES
Irrigation controller water management with temperature budgeting
ActiveUS7058478B2Minimizes runoffEasy and less-expensive to installSelf-acting watering devicesClimate change adaptationEngineeringEvapotranspiration
The present invention provides methods for water conservation with irrigation controllers based upon the ambient temperature and extraterrestrial radiation of a particular geographical area. It receives a preliminary irrigation schedule from the operator and computes a water budget ratio by comparing current local geo-environmental data with stored local geo-environmental data, then modifying the preliminary irrigation schedule based upon that ratio. The present invention utilizes fewer variables, is less complex, and is much easier to install and maintain than the current evapotranspiration-based controllers.
Owner:HUNTER INDUSTRIES
Revegetation system on steep rocky slopes and implementing method thereof
The invention discloses a revegetation system on steep rocky slopes and an implementing method thereof, which are suitable for surface vegetalization of steep rocky uncover slopes with the gradient of 60 degrees above. A slope drainage system is arranged in the system to prevent the vegetalization layer from being flushed by rainwater and reduce water loss and soil erosion; a mix-sprayed vegetalization layer plastic-covered with iron wire corrugated meshes and consisting of continuous fiber is arranged on the slopes and has stable structure, rich nutrition and functions of water conservation and ventilation. The casting separator prevents the mix-sprayed vegetalization layer from sliding downwards; and a drop irrigation facility is distributed to make sure that the vegetalization layer is moist. After maintenance of mix-sprayed construction on the slopes, the vegetable layer with herbaceous plants and shrubs can be effectively formed, thereby reconstructing the destructed vegetables on the slopes and recovering the natural landscapes on the uncover slopes.
Owner:深圳市如茵生态环境建设有限公司
Irrigation water conservation with temperature budgeting and time of use technology
ActiveUS20070293990A1Minimizes runoffEasy and less-expensive to installSelf-acting watering devicesWatering devicesEngineeringCentral unit
The present invention provides numerous methods, systems and apparatus that use a novel form of water budgeting technology for water conservation without the use of complex ET (Evapotranspiration) data or methods. Embodiments include incorporating the technology directly into irrigation controllers, into modules added on to existing controllers, or into central units that broadcast a water budget that can alter the schedules of one, many, or selected groups of remotely located controllers or modules. The various methods of the present invention offer the choice of adjusting the station run times, accumulating the water budgets, altering the watering intervals, and / or combining the present water budgeting technology with local watering communities' restricted watering schedules. The result offers residential, commercial, and municipal users a wide range of practical choices for effective water conservation in landscape irrigation with temperature based water budgeting.
Owner:HUNTER INDUSTRIES
Irrigation water conservation with temperature budgeting and time of use technology
ActiveUS7844368B2Minimizes runoffSimple calculationSelf-acting watering devicesWatering devicesEnvironmental resource managementAgricultural engineering
Owner:HUNTER INDUSTRIES
System and method for conserving water and optimizing land and water use
ActiveUS9202252B1Easy to save energyFacilitate water conservationDesign optimisation/simulationLevel indicatorsWater useNet return
Software, databases, computer models, and a series of monitoring devices are provided that are used collectively to optimize farming operations for the purpose of efficiently utilizing the water right associated with the land while recognizing the potential to transfer a proportional amount of the water right in a lease or sale arrangement to other water users. The contemplated system encourages water conservation by allowing those owning water rights to determine the feasibility of changed farming practices intended to maximize net returns and profitability of their overall farming operations.
Owner:US SEC AGRI +1
Landscape irrigation management with automated water budget & seasonal adjust, and automated implementation of watering restrictions
ActiveUS20120095604A1Easy to implementEfficient replacementProgramme controlFinanceEnvironmental resource managementAgricultural engineering
Embodiments of the present invention provide methods and apparatus for water conservation with landscape irrigation controllers, plug-in and add-on devices, and centralized systems. In embodiments of the invention, a water budget percentage is determined by comparing current local geo-environmental data with stored local geo-environmental data, and the preliminary irrigation schedule or station run times are automatically modified based upon that water budget percentage. Embodiments of the present invention also provide for automation of mandated landscape watering restrictions alone, or in various combinations with water budgeting methods and apparatus.
Owner:HUNTER INDUSTRIES
Conductive fluid leak detection system & automatic shut off valve
InactiveUS20030066340A1Minimize fluid leakageBlock fluid flowDetection of fluid at leakage pointIndication/recording movementLine tubingAlarm state
A flood control device and system which controls conductive fluid(s) in a conductive fluid supply line and or path, using the conductivity of said fluid(s). The conductive fluid system comprises; a conductive fluid supply line, in-line conductive fluid shut-off valve, in-line conductive fluid detector, conductive fluid sensor(s) (attached in or to conductive fluid dependent appliances), a D.C. powered central processing unit, and control panel. The conductive fluid flows through said conductive fluid line, said in-line conductive fluid shut-off valve, intern reaching said in-line conductive fluid detector which detects the flow of conductive fluid, thereby sending data to said central processing unit. When said central processing unit receives said data, said central processing unit delays for a predetermined amount of time (example 3 seconds) waiting to receive data from one or more of said conductive fluid sensor(s). If said central processing unit doesn't receive said data from said conductive fluid sensor(s) within said predetermined, said central processing unit will automatically send data to said in-line conductive fluid shut-off valve, to close, therefore terminating the forward flow of conductive fluid(s). System also includes audible signal(s) to signal an alarm condition, timing mode(s) for water conservation and monitoring in-line conductive fluid shut-off valve movements, a phone notifier for notifying user of said termination of conduct fluid due to a conductive fluid leak detection, and for (user-set) excessive water usage, means for communicating with said central processing unit by way of telephonic communication (to close or re-open said in-line conductive fluid shut-off valve), a battery back up system, and means of operating by way of manual means.
Owner:HASSENFLUG BRIAN EDWARD
Slowly-releasing water conservation biological organic and inorganic compound fertilizer particles and production method thereof
InactiveCN102584477AGuaranteed nutrient supplyPromote conversionEnergy inputFertiliser formsContinuous croppingHigh concentration
The invention belongs to the technical field of bio-organic fertilizer production, and provides slowly-releasing water conservation biological organic and inorganic compound fertilizer particles and a production method thereof. The fertilizer has the advantages of reasonable structure, unique processing technique, scientific formulation, high fertilizer effect, improved soil physical condition, convenience application, and wide application scope; high-grade bio-organic fertilizer meeting the requirements of organic agricultural vegetable, fruits or food production, or fertilizer having special functions of drought resisting, saline and alkaline resisting and continuous cropping resisting and capable of specially meeting fertilizer requirement rules of various crops can be further designed and developed. The fertilizer effect playing way in the invention is unique, and component parts such as probiotics, inorganic nutrients, regulatory factors, organic matter and the like can be respectively played in time and space. Through the design to fertilizer particle structure and formula, the advantages of organic matter, high concentration of inorganic fertilizer, slowly-releasing efficiency and the special effects of beneficial microorganisms are integrated and slowly-releasing water conservation biological organic and inorganic compound fertilizer particles can be the first choice in replacing organic and inorganic compound fertilizers, compound fertilizers and inorganic slow release fertilizers.
Owner:贾洪涛
Irrigation controller water management with temperature budgeting
ActiveUS20060122736A1Minimizes runoffEasy and less-expensive to installSelf-acting watering devicesClimate change adaptationPower controllerEngineering
The present invention provides methods for water conservation with AC, DC, or ambient light powered irrigation controllers without the use of complex ET (evapotranspiration) data or ET related service fees. Programming may consist of the operator entering a preliminary irrigation schedule, and entering the local zip code. The controller then periodically calculates a water budget by comparing current (non ET) local geo-environmental data with stored local geo-environmental data, and then modifies the preliminary schedule using the water budget. A number of embodiments are possible: in stand-alone controllers with a temperature sensor attached directly to the microprocessor within that controller, or as a centrally placed CBM (Central Broadcast Module) which calculates a water budget percentage which is transmitted to one or more field controllers by wired or wireless means. Alternately, a TBM (Temperature Budget Module) that is separate from the controller is connected between the controller outputs and the valves, or mounted at the valves themselves. The TBM calculates the water budget, monitors the controller outputs and shortens the duration times as calculated by the water budget ratio. Because of its flexible capabilities with stand alone AC, DC, solar, or ambient light powered controllers, as a centrally broadcast WBR in a wired or wireless configuration, or as an add-on to existing controllers or valves, its programming simplicity and close approximation to ET without its complications and cost, the present invention significantly reduces that cost, has the potential to save more water and minimize runoff than currently available ET methods.
Owner:HUNTER INDUSTRIES
Water Management System
InactiveUS20110035063A1Facilitate water conservationData processing applicationsElectric devicesTelecommunications linkDisplay device
This invention is a water consumption monitoring and control system comprised of a base unit, itself comprising a display and a data entry device, a microprocessor, a communication link to water meters, pressure sensors, temperature sensors, flush toilet vibration sensors and shut-off valves. In addition the base unit has access to the Internet and can access a server which holds a database of water conservation information. This database includes watering advisories from the local government, and weather information from the weather office. The server runs an algorithm and generates control data which is sent to the base unit.
Owner:PALAYUR SAJU ANTONY
Ultralow-volume solvent containing pleocidin or spinetoram
ActiveCN102349502AImprove ergonomicsConserve waterBiocideAnimal repellantsAdditive ingredientCnaphalocrocis medinalis
The invention belongs to the field of pesticide, which mainly relates to an ultralow-volume solvent containing pleocidin or spinetoram. The ultralow-volume solvent is an active component I or an active ingredient compounded by the active component I or an active component II, and the balance is solvent and accessory ingredient, wherein the active component I is pleocidin or spinetoram; and the active component II is insecticide of the other type of action mechanism. The ultralow volume solvent is simple to process and has the advantages of water conservation, high work efficiency, long efficacy continuing period, small possibility of generating resistance to drug for a target, small environment pollution, synergy and the like. Ultralow volume spraying, low-volume spraying or low-volume electrostatic spraying is applied to effectively prevent and control various pests, such as Cnaphalocrocis medinalis, Chilo suppressalis, rice planthopper, Ostrinia nubilalis, plutella xylostella, cabbage caterpillar, Spodoptera litura, Spodoptera exigua, aphids, Lesser green leaf hopper, Icerya purchase, aleyrodid, Thrip, stinkbug, acridid, flea beetle, leafminer, looper and the like.
Owner:GAUNGXI TIANYUAN BIOCHEM
Automatic control system and method for trickle irrigation of water, fertilizer and drug underground
InactiveCN101206459AImprove utilization efficiencySolve the blockageClimate change adaptationWatering devicesFertilizerInformation technology
The invention provides an integrated automatic control system for underground dripping irrigation water, fertilizer and medicine and a method thereof, which belongs to the water saving irrigation field, wherein, the system comprises a data input system, a sensor device, a master control device and an output device; the method comprises the following steps: A. initialization data of crops is set; B. a plurality of parameters related to cropland irrigation are acquired; C. a plurality of acquired parameters related to cropland irrigation are combined with the initialization data, and irrigation decision-making software is used for analysis and calculation; D. instructions are executed according to analysis and calculation results. The invention utilizes modern information technologies to grasp mutation of cropland environmental parameters, and has the advantages of high automatic control degree of scientific irrigation and drip irrigation and effective lightening of labor intensity.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Vertical multi-impeller washing machine and washing method
InactiveCN101191285ASolve the entanglementImprove cleanlinessWashing machine with receptaclesTextiles and paperImpellerEngineering
The invention relates to a vertical multi-impeller washing machine which comprises an inner barrel, an outer barrel, impellers, a motor, a speed reducer and a transmission gear. The invention is characterized in that: the impellers are three or four impellers which are pivotally arranged on the periphery of the inner wall of the inner barrel and correspondingly arranged at 120 DEG or 90 DEG; the impellers take the shape of a basin and are provided with convex ribs with smooth edges; gear rings are arranged on reverse surfaces of the impellers; the transmission gear is provided with three or four output shafts on which the impellers are arranged. A washing method of the invention is characterized in that: during the washing process, washing can be carried out when water inlet quantity only reaches one third of impeller height, and all the impellers can rotate positively or reversely simultaneously for washing clothes. Due to adoption of multi-impeller structure, the clothes can be overturned and thrown in the three-dimensional direction, thereby effects of non winding, high cleanliness and low abrasion are realized. Because the inner barrel and the outer barrel are designed into the shape of a basin and the size of the bottom part of the outer barrel is small, the aim of water conservation is reached.
Owner:HEFEI GOOLU TECH WASHER
Method for improving seriously saline-alkali land of oasis area and planting high-quality lawn
ActiveCN102197726AImprove fertility statusGood characterHorticultureSoil-working methodsAlkali soilDesalination
The invention discloses a method for improving seriously saline-alkali land of an oasis area and planting a high-quality lawn, which relates to a soil improving method and the technical field of lawn planting. The method for improving seriously saline-alkali land of the oasis area and planting a high-quality lawn comprises 1 to 18 steps. The method disclosed by the invention has the advantages offast desalination, no salt accumulation in the surface soil, soil fertility improvement, water conservation, high salt absorbing efficiency of plants, and the like.
Owner:酒泉金塔胡杨文化旅游发展有限公司
Water savings system
An irrigation controller has run-times that are modified as a function of a calculated volumetric irrigation amount and a preferred irrigation amount. The preferred irrigation amount is at least partly based on an evapotranspiration (ETo) value and the area of the irrigated site. The calculated volumetric irrigation amount is based on flow meter data and inputted irrigation run-times. Preferably the flow meter is a water meter that measures water distributed to the irrigation system and to other water using devices at the irrigated site, and the flow data is based on signature data. In addition to flow data, water pressure may be measured that corresponds with the flow data. It is anticipated that the function will involve the dividing of the preferred irrigation amount by the calculated volumetric irrigation amount to arrive at a modifying factor.
Owner:AQUA CONSERVATION SYST
Water savings system
An irrigation controller has run-times that are modified as a function of a calculated volumetric irrigation amount and a preferred irrigation amount. The preferred irrigation amount is at least partly based on an evapotranspiration (ETo) value and the area of the irrigated site. The calculated volumetric irrigation amount is based on flow meter data and inputted irrigation run-times. Preferably the flow meter is a water meter that measures water distributed to the irrigation system and to other water using devices at the irrigated site, and the flow data is based on signature data. In addition to flow data, water pressure may be measured that corresponds with the flow data. It is anticipated that the function will involve the dividing of the preferred irrigation amount by the calculated volumetric irrigation amount to arrive at a modifying factor.
Owner:AQUA CONSERVATION SYST
Method for biologically improving saline-alkali soil
InactiveCN103583106AEffective improvementIncrease economic incomeOther chemical processesOrganic fertilisersAlkali soilFlora
The invention discloses a method for biologically improving saline-alkali soil. The method includes the steps of 1, deep ploughing and deep tilling the saline-alkali soil and making the saline-alkali soil exposed under the sun, 2, digging wells to lower the underground water level, 3, constructing tall ridges, 4, adding biological modifiers and turning over the soil after the biological modifiers are evenly broadcasted to effectively increase organic matter and nutrients in the soil, loosen the soil, enrich microbial flora in the soil, increase activity of the soil, and neutralize saline and alkaline through some activated adsorption base ions in the modifiers, and 5, planting oats to absorb part of the base ions in the soil, convert the base ions into substances needed by growth of the oats and reduce the content of saline and alkaline of the soil. The method can be suitable for saline-alkali soil formed due to different factors, and the saline-alkali soil is improved through physical measures, water conservation measures, utilization of the biological modifiers and plantation of the oats. The method has the advantages that improvement economic benefits can be achieved early, operation is easy to conduct, promotional reproductively is high, improvement is sustainable, effects can be accumulated, in situ saline-alkali soil improvement can be achieved, and improvement cost is reduced.
Owner:SHANGHAI CHUANGBO ECOLOGICAL ENG
Urban road rainfall runoff ecological coprocessing device and method
InactiveCN103073111AImprove retentionAlleviate severe flooding problemsFatty/oily/floating substances removal devicesSewerage structuresRainfall runoffWater quality
The invention discloses an urban road rainfall runoff ecological coprocessing device and a method. The device comprises an urban road rainfall runoff ecological coprocessing box and a bioretention purification unit, wherein an overflow weir board, a second screen mesh partition and a perforation partition are arranged in the urban road rainfall runoff ecological coprocessing box at intervals sequentially; the interior of a box body is divided into an overflow chamber, a water inlet chamber, a water distribution chamber and a bioretention purification chamber that are sequentially arranged by the overflow weir board, the second screen mesh partition and the perforation partition; and the bioretention purification unit is arranged in the bioretention purification chamber, and comprises a gravel layer, a sand filter layer, a planting soil layer and plants. The device and the method can sequentially remove floating matters, particles and soluble pollutants that are in different particle sizes in rainfall runoff, achieve hierarchical control of the pollutants in the rainfall runoff, can store a part of rainfall runoff to meet growth requirements of the plants in the bioretention unit, achieve a water conservation effect, and can also achieve multi-purpose control of water quality and water quantity of the urban road rainfall runoff.
Owner:BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE +1
Water conservation / hot water recirculation system utilizing timer and demand method
InactiveUS20090145490A1Water resource protectionValve members for heating/coolingWater flowEngineering
In most homes today, when a person turns on a hot water faucet, he or she must wait for residual cold water to flow out of the hot water pipe as hot water travels from the water heater to the faucet. That residual cold water typically goes down the drain. In some buildings, recirculating hot water systems keep hot water flowing in a loop, thereby making hot water immediately available and eliminating the waste of residual hot water, but these systems waste energy from thermal radiation in the hot water pipes at times when no hot water is being utilized. The invention conserves both water and energy by controlling the recirculation of residual cold water by means of momentary activation of any hot water faucet, and also by programmed time-of-day intervals, whereupon the pump replaces the residual cold water with hot water and recirculates the residual cold water, and then turns off so as to avoid energy waste from running hot water through the loop at times it is not needed. The invention provides for fast installation of the pump, detector, and controller on the hot water outlet side of the water heater. It can be used in buildings that have separate hot water return pipes, and it can also be used in configurations where existing cold water pipes are used for the return of hot water.
Owner:KERSHISNIK DONALD GREGORY
Vegetation restoration method adopting plant fiber blanket with assist of slurry spraying
InactiveCN102138428ASolve the protection problemAchieve the perfect combinationExcavationsHorticultureRevegetationPlant fibre
The invention belongs to the field of ecological engineering and relates to a construction method of spraying and covering planting in an ecological restoration project, namely, a vegetation restoration method adopting a plant fiber blanket with the assist of slurry spraying. The invention is characterized in that the method comprises the following steps: laying a slope through the plant fiber blanket firstly, spraying and covering the slope through slurry and covering the slope through the plant fiber blanket. In the invention, a three-dimensional net made of geotextile material can be replaced; chemical synthetic materials entering the natural world can be obviously reduced when the effect of improving the overall and local stability of the slope is achieved; moreover, vegetable fiber can also increase organic components of soil, is beneficial for improving the capacities of water retaining and constant-temperature keeping of the soil on the surface layer and is beneficial for the growth of vegetation on the slope; when the construction cost is reduced, the low carbon conversion and utilization of agricultural and forestal residuals are realized, agricultural and forestal chains are extended, and the industrial added value of by-products is improved; and the method has a large application value in the soil and water conservation, sand prevention and control and ecological restoration of the damaged vegetation in a project in China.
Owner:北京林丰源生态科技有限公司
Vegetation configuration method for preventing water and soil loss of mine dump of dry-hot valley
InactiveCN105103843AReduce surface temperatureImprove survival rateAgriculture gas emission reductionPlant cultivationDomestic animalShrub
The invention discloses a vegetation configuration method for preventing the water and soil loss of a mine dump of a dry-hot valley. The method comprises the following steps: performing topsoil stripping on the dump; building an intercepting ditch, a drainage ditch and a water collecting tank on a platform of the dump; screening vegetation types, including shrubs, herbs and liana, suitable for growing in the mine dump of the dry-hot valley; performing targeted planting; after the vegetation of the mine dump is planted, enclosing the dump by using a wire mesh or a fence to prevent a slope surface from being destroyed by domestic animals. According to the principles of soil and water conservation and restoration ecology, vegetation species are reasonably combined by aiming at that the habitat of the mine dump of the dry-hot valley is severe and different slope positions have different soil erosion intensity and water conditions, so that a reliable technical path is provided for recovering the vegetation in a mining region as quickly as possible. Moreover, the vegetation configuration method for preventing the water and soil loss of the mine dump of the dry-hot valley has the characteristics of high operability and high comprehensive benefit.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
Selectable control energy and water conservation system
InactiveUS6039067AWater resource protectionOperating means/releasing devices for valvesWater useSolenoid valve
The system is unique in that a structure's plumbing lines are effectively routed, to stop energy and water waste, while adding little to construction cost. Water pressure to hot water supply (50) is controlled through a selectable flow control valve (10). A hot water manifold (3) and check valves 42 and 43 produce a dual line connection, between hot water manifold (3) and the hot water use area. In the water saver mode, positioning selectable flow control valve (10) causes pump (4) to draw water from distribution conduit (6), through selectable flow control valve (10), through cold water manifold (12) and solenoid valve (37) to hot water supply (50). Pump (4) causes hot water to fill distribution conduit (6), to the hot water use area. This circulation delivers hot water to replace water standing in the line. Circulation period is determined by controller (22). When selectable flow control valve (10) is positioned to the use mode, supply pressure at cold water conduit (28) is applied through selectable flow control valve (10), then via cold water manifold (12), to hot water supply (50). Positioning selectable flow control valve (10) to the energy saver mode causes, cold water pressure to be interrupted to hot water supply (50) and directed through feedback conduit (72) and conduit (71), to a junction down stream from hot water manifold (3). Supply pressure forces hot water towards open hot water outlet (45), thus all hot water delivered from hot water manifold (3) is utilized.
Owner:HOULIHAN JOHN A
Water conservation coal cutting method for small and medium-sized coal mines in waterhead area
InactiveCN102505943AThe method steps are simpleEasy to implementUnderground miningSurface miningLower limitLimit value
The invention discloses a water conservation coal cutting method for small and medium-sized coal mines in a waterhead area. The method comprises the following steps: 1, defining the position of a coal bed, that is, defining the thickness and the buried depth of the coal bed in an exploited coal mine according to a boring log; 2, defining exploitation parameters, that is, defining a roof rock beambearing load, the higher limit value Lmax of the width of an exploitation strip, and the lower limit value Dmin of the width of a coal pillar; 3, defining an exploitation scheme, that is, defining the mining and the reservation widths during strip exploitation according to the Lmax and the Dmin, wherein the width L0 of a strip exploited during strip exploitation is smaller than or equal to Lmax, and the width D0 of a reserved coal pillar is larger than or equal to Dmin; and 4, exploiting, that is, exploiting the coal bed according to the conventional strip exploitation method, and reserving acoal pillar of which the width is D0 every time when a strip of which the width is L0 is exploited. The water conservation coal cutting method has the advantages that the design is reasonable; the implementation is convenient; the maneuverability is high; the using effect is good; and the problems of easily caused great loss of the phreatic water resource, and poor water conservation coal cuttingeffect during the conventional exploitation of the small and medium-sized coal mines in the waterhead area are solved.
Owner:XIAN UNIV OF SCI & TECH
Fresh water scale pond ecological breeding system
InactiveCN102124972AReduce eutrophicationImprove purification functionClimate change adaptationAgricultural fishingEutrophicationAbnormal positions
The invention discloses a fresh water scale pond ecological breeding system. The system comprises five parts, namely a breeding pond, a pond water normal-position distributed treatment part, a pond discharge water abnormal-position centralized treatment part, a backwater function recovery treatment part and a pond water quality compensation treatment part. Breeding water aquatic ecology, pond breading and an aquaculture engineering technology are integrated organically; and pond microcirculation is formed through absorption, decomposition and nitrification functions of microorganisms, algae and the aquatic plants, particularly continuous removal of aquatic plants with growth and intermittent water supply, so that the utilization rate of pond eutrophic substances is improved, and breeding backwater is restored. The system has the remarkable effects of water saving and emission reduction and provides the high-efficiency pond ecological breeding system which is novel in process and is high in operability and economic and practical and has a unique structure for fishery industrialization and scale production.
Owner:山东省淡水水产研究所
Vegetable organic soil-less culture method, culture medium and manufacturing method thereof
InactiveCN105191763AIncrease profitAchieve high quality and high yieldAgriculture gas emission reductionCultivating equipmentsBiotechnologyChemical treatment
The invention discloses a vegetable organic soil-less culture method. According to the method, non-GMO vegetable seeds which are not treated chemically are disinfected, and organic seedling culture media are adopted for carrying out vegetable seedling culture; vegetable seedlings are transplanted into culture grooves in a greenhouse in a fixed mode; the culture media specially made are uniformly distributed in the culture grooves; vegetables planted in the culture grooves in the greenhouse are cultured and managed. The invention discloses a culture medium and a manufacturing method thereof. As the culture media specially made are adopted for culture, production of rich-nutrition, high-quality, safe and environment-friendly organic vegetables is combined with the advantages of the high fertilizer utilization rate, water conservation and high production controllability of the soil-less culture technology, the problems that when the vegetables are planted in traditional soil, the conversion period is long, the requirement for production sites is high, and organic fertilizer application and disease, insect and weed damage are difficult to control are solved, and the organic vegetables are high in quality and yield.
Owner:上海多利农业发展有限公司 +1
Optimization design method of impellor for cavitation-erosion-resistant centrifugal fan
InactiveCN102251983AReasonably constructedImprove efficiencyPump componentsPumpsEngineeringThree dimensional shape
Owner:XIAN UNIV OF TECH
Landscape irrigation management with automated water budget and seasonal adjust, and automated implementation of watering restrictions
ActiveUS8538592B2Easy to implementEfficient replacementProgramme controlFinanceEngineeringRunning time
Embodiments of the present invention provide methods and apparatus for water conservation with landscape irrigation controllers, plug-in and add-on devices, and centralized systems. In embodiments of the invention, a water budget percentage is determined by comparing current local geo-environmental data with stored local geo-environmental data, and the preliminary irrigation schedule or station run times are automatically modified based upon that water budget percentage. Embodiments of the present invention also provide for automation of mandated landscape watering restrictions alone, or in various combinations with water budgeting methods and apparatus.
Owner:HUNTER INDUSTRIES
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